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Teixeira CT, Rizelio V, Robles A, Barros LCM, Silva GS, Andrade JBCD. A predictive score for atrial fibrillation in poststroke patients. ARQUIVOS DE NEURO-PSIQUIATRIA 2024; 82:1-8. [PMID: 39146979 DOI: 10.1055/s-0044-1788271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
BACKGROUND Atrial fibrillation (AF) is a risk factor for cerebral ischemia. Identifying the presence of AF, especially in paroxysmal cases, may take time and lacks clear support in the literature regarding the optimal investigative approach; in resource-limited settings, identifying a higher-risk group for AF can assist in planning further investigation. OBJECTIVE To develop a scoring tool to predict the risk of incident AF in the poststroke follow-up. METHODS A retrospective longitudinal study with data collected from electronic medical records of patients hospitalized and followed up for cerebral ischemia from 2014 to 2021 at a tertiary stroke center. Demographic, clinical, laboratory, electrocardiogram, and echocardiogram data, as well as neuroimaging data, were collected. Stepwise logistic regression was employed to identify associated variables. A score with integer numbers was created based on beta coefficients. Calibration and validation were performed to evaluate accuracy. RESULTS We included 872 patients in the final analysis. The score was created with left atrial diameter ≥ 42 mm (2 points), age ≥ 70 years (1 point), presence of septal aneurysm (2 points), and score ≥ 6 points at admission on the National Institutes of Health Stroke Scale (NIHSS; 1 point). The score ranges from 0 to 6. Patients with a score ≥ 2 points had a fivefold increased risk of having AF detected in the follow-up. The area under the curve (AUC) was of 0.77 (0.72-0.85). CONCLUSION We were able structure an accurate risk score tool for incident AF, which could be validated in multicenter samples in future studies.
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Affiliation(s)
| | - Vanessa Rizelio
- Hospital Instituto de Neurologia de Curitiba, Curitiba PR, Brazil
| | | | | | - Gisele Sampaio Silva
- Universidade Federal de São Paulo, São Paulo SP, Brazil
- Hospital Israelita Albert Einstein, Organização de Pesquisa Acadêmica, São Paulo SP, Brazil
| | - João Brainer Clares de Andrade
- Centro Universitário São Camilo, São Paulo SP, Brazil
- Universidade Federal de São Paulo, São Paulo SP, Brazil
- Instituto Tecnológico de Aeronáutica, São José dos Campos SP, Brazil
- Hospital Israelita Albert Einstein, Organização de Pesquisa Acadêmica, São Paulo SP, Brazil
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Koh JH, Lim LKE, Tan YK, Goh C, Teo YH, Ho JSY, Dalakoti M, Chan MYY, Sia CH, Yeo LLL, Tan BYQ. Assessment of Left Atrial Fibrosis by Cardiac Magnetic Resonance Imaging in Ischemic Stroke Patients Without Atrial Fibrillation: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2024; 13:e033059. [PMID: 39190571 DOI: 10.1161/jaha.123.033059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 05/13/2024] [Indexed: 08/29/2024]
Abstract
BACKGROUND Left atrial (LA) fibrosis is a marker of atrial cardiomyopathy and has been reported to be associated with both atrial fibrillation and ischemic stroke. Elucidating this relationship is clinically important as LA fibrosis could serve as a surrogate biomarker of LA cardiomyopathy. The objective of this study is to investigate the association of LA fibrosis and embolic stroke of undetermined source (ESUS) using cardiac magnetic resonance imaging. METHODS AND RESULTS Following an International Prospective Register of Systematic Reviews-registered protocol, 3 blinded reviewers performed a systematic review for studies that quantified the degree of LA fibrosis in patients with ESUS as compared with healthy patients from inception to February 2024. A meta-analysis was conducted in the mean difference. From 7 studies (705 patients), there was a significantly higher degree of LA fibrosis in patients with ESUS compared with healthy controls (MD, 5.71% [95% CI, 3.55%-7.87%], P<0.01). The degree of LA fibrosis was significantly higher in patients with atrial fibrillation than healthy controls (MD, 8.22% [95% CI, 5.62%-10.83%], P<0.01). A similar degree of LA fibrosis was observed in patients with ESUS compared with patients with atrial fibrillation (MD, -0.92% [95% CI, -2.29% to 0.44%], P=0.35). CONCLUSIONS A significantly higher degree of LA fibrosis was found in patients with ESUS as compared with healthy controls. This suggests that LA fibrosis may play a significant role in the pathogenesis of ESUS. Further research is warranted to investigate LA fibrosis as a surrogate biomarker of atrial cardiomyopathy and recurrent stroke risk in patients with ESUS.
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Affiliation(s)
- Jin Hean Koh
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
| | - Lincoln Kai En Lim
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
| | - Ying Kiat Tan
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
| | - Claire Goh
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
| | - Jamie Sin Ying Ho
- Department of Medicine National University Health System Singapore City Singapore
| | - Mayank Dalakoti
- Department of Cardiology National University Heart Centre Singapore City Singapore
| | - Mark Yan Yee Chan
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
- Department of Cardiology National University Heart Centre Singapore City Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
- Department of Cardiology National University Heart Centre Singapore City Singapore
| | - Leonard Leong Litt Yeo
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
- Division of Neurology, Department of Medicine National University Hospital Singapore City Singapore
| | - Benjamin Yong Qiang Tan
- Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
- Division of Neurology, Department of Medicine National University Hospital Singapore City Singapore
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Nardi Agmon I, Barnea R, Levi A, Murad O, Shafir G, Naftali J, Schellekes N, Shiyovich A, Kornowski R, Auriel E, Hamdan A. Complex left appendage morphology is associated with Embolic Stroke of Undetermined Source. Eur Stroke J 2024; 9:714-721. [PMID: 38616402 PMCID: PMC11418454 DOI: 10.1177/23969873241246592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/26/2024] [Indexed: 04/16/2024] Open
Abstract
INTRODUCTION Variations in the left atrial appendage (LAA) morphology are associated with different embolic risk in patients with atrial fibrillation (AF). Data are scarce regarding the association between LAA morphology and Embolic stroke of undetermined source (ESUS). PATIENTS AND METHODS Using cardiac computed tomography (CCT) scans, LAA morphology was categorized as either chicken wing (CW), cactus, windsock, or cauliflower. Furthermore, we examined the presence of large secondary lobes arising from the main lobe, considering their existence as indicative of a complex LAA morphology. LAA morphologies were compared between ESUS (n = 134) and AF patients (n = 120); and between ESUS patients with (n = 24) and without (n = 110) subsequent AF diagnosis during long-term follow-up. RESULTS ESUS patients had a significantly higher prevalence of cauliflower morphology compared to AF group (52% vs 34%, respectively, p = 0.01); however, no significant difference was found between the groups when categorizing LAA morphology to either CW or non-CW. ESUS patients had significantly higher prevalence of large secondary lobes compared with AF patients (50% vs 29%, respectively, p = 0.001). When comparing ESUS patients with and without AF diagnosis during follow-up (20-48 months of follow-up, median 31 months), there were no significant differences in the prevalence of the "classical" morphologies, but large secondary lobes were significantly more prevalent among those without subsequent AF diagnosis. CONCLUSION ESUS patients have a high prevalence of complex LAA morphology, which might be associated with an increased risk for thrombus formation even in the absence of AF.
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Affiliation(s)
- Inbar Nardi Agmon
- Cardiology Division, Rabin Medical Center, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Rani Barnea
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology, Rabin Medical Center, Petach Tikva, Israel
| | - Amos Levi
- Cardiology Division, Rabin Medical Center, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Omar Murad
- Department of Internal Medicine, Wolfson Medical Center, Tel Aviv, Israel
| | - Gideon Shafir
- Department of Radiology, Rabin Medical Center, Petach Tikva, Israel
| | - Jonathan Naftali
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology, Rabin Medical Center, Petach Tikva, Israel
| | | | - Arthur Shiyovich
- Cardiology Division, Rabin Medical Center, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ran Kornowski
- Cardiology Division, Rabin Medical Center, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eitan Auriel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology, Rabin Medical Center, Petach Tikva, Israel
| | - Ashraf Hamdan
- Cardiology Division, Rabin Medical Center, Petach Tikva, Israel
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Sung EM, Saver JL. Statin Overuse in Cerebral Ischemia Without Indications: Systematic Review and Annual US Burden of Adverse Events. Stroke 2024; 55:2022-2033. [PMID: 38873773 DOI: 10.1161/strokeaha.123.044071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 05/10/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Statin agents play a major role in secondary prevention after acute cerebral ischemia (ACI) events but are not indicated in all patients with ischemic stroke and transient ischemic attack. National guidelines recommend statins for patients with ACI of large or small vessel atherosclerotic origin and without these stroke mechanisms but coexisting coronary artery disease or primary prevention indications. The potential adverse effect burden of statin overuse in the remaining ACI patients have not been well delineated. METHODS Per Preferred Reporting Items of Systematic Reviews and Meta-Analyses guidelines, we performed systematic meta-analyses of: (1) statin randomized clinical trials to determine absolute risk increases for 6 major adverse events; (2) large clinical series to determine the proportion of ACI events due to large or small vessel atherosclerotic disease; and (3) the proportion of remaining patients with coronary artery disease/primary prevention statin indications. RESULTS For adverse effects, data were available from 63 randomized clinical trials enrolling 155 107 patients. Statin therapy was associated with an increased risk of the occurrence of 6 conditions: diabetes, myalgia or muscle weakness, myopathy, liver disease, renal insufficiency, and eye disease. Across 55 large series enrolling 53 501 patients, the rate of ACI due to large and small artery atherosclerosis was 45.0% (large artery atherosclerosis 21.6%, small vessel disease 23.4%), the rate of remaining patients with coronary artery disease/primary prevention statin indications was 31.8%, and the rate of patients without statin indications was 23.2%. Data synthesis indicated that, in the United States, were all patients with ACI without statin indications treated with statins, a total of 5601 patients would develop needless adverse events each year, most commonly diabetes, myopathy, and eye disease. CONCLUSIONS More than one-fifth of patients with ACI do not have an indication for statins, and statin overuse in these patients could annually lead to over 5600 adverse events each year in the United States, including diabetes, myopathy, and eye disease. These findings emphasize the importance of adhering to guideline indications for the start of statin therapy in ACI.
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Affiliation(s)
- Eleanor Mina Sung
- University of Southern California, Viterbi School of Engineering, Los Angeles (E.M.S.)
| | - Jeffrey L Saver
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine, University of California Los Angeles (J.L.S.)
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Ramanathan A, Junko G. Oral Contraceptive Pills as a Potential Cause of Wallenberg Syndrome: A Mysterious Case. Cureus 2024; 16:e67733. [PMID: 39318941 PMCID: PMC11421868 DOI: 10.7759/cureus.67733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 08/23/2024] [Indexed: 09/26/2024] Open
Abstract
Wallenberg syndrome, also known as lateral medullary syndrome, is a rare neurological condition caused by an ischemic stroke in the posterior inferior cerebellar artery (PICA) territory of the brainstem. Here, we present a case of Wallenberg syndrome in a relatively healthy 37-year-old woman with no known risk factors besides a history of long-term oral contraceptive pill (OCP) use without prior adverse effects. The patient presented with acute onset headache that worsened in bright light, left-sided lightheadedness, dizziness, blurry vision, and non-bloody, non-bilious emesis. A neurological exam revealed left facial numbness and left upper extremity numbness; however, strength was intact in all extremities. An MRI revealed an acute ischemic infarct in the left PICA distribution, consistent with Wallenberg syndrome. While the initial thought was that the patient's OCP use contributed to this stroke, it has been deduced that the risk of stroke with current formulations of OCPs is insignificant compared to women who do not take any OCPs. This case highlights the importance of reconsidering OCPs as the cause of stroke in young, healthy patients without significant risk factors and considering reclassification as an embolic stroke of undetermined source (ESUS).
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Affiliation(s)
- Anshul Ramanathan
- Internal Medicine, Edward Via College of Osteopathic Medicine, Blacksburg, USA
| | - Gretchen Junko
- Internal Medicine, LewisGale Medical Center, Roanoke, USA
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Marinheiro G, Araújo B, Rivera A, Monteiro GDA, Santana LS, Leite M, Mutarelli A, Pinheiro AC, Figueiredo EG, Telles JPM. Direct oral anticoagulants in embolic stroke of undetermined source: an updated meta-analysis. J Thromb Thrombolysis 2024:10.1007/s11239-024-03017-7. [PMID: 39078535 DOI: 10.1007/s11239-024-03017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/02/2024] [Indexed: 07/31/2024]
Abstract
The efficacy and safety of direct oral anticoagulants (DOAC) in patients with embolic stroke of undetermined source (ESUS) remains unclear. We systematically searched PubMed, Embase, and Cochrane Library for randomized controlled trials (RCT) comparing DOACs versus aspirin in patients with ESUS. Risk ratios (RR) and 95% confidence intervals (CI) were computed for binary endpoints. Four RCTs comprising 13,970 patients were included. Compared with aspirin, DOACs showed no significant reduction of recurrent stroke (RR 0.95; 95% CI 0.84-1.09; p = 0.50; I2 = 0%), ischemic stroke or systemic embolism (RR 0.97; 95% CI 0.80-1.17; p = 0.72; I2 = 0%), ischemic stroke (RR 0.92; 95% CI 0.79-1.06; p = 0.23; I2 = 0%), and all-cause mortality (RR 1.11; 95% CI 0.87-1.42; p = 0.39; I2 = 0%). DOACs increased the risk of clinically relevant non-major bleeding (CRNB) (RR 1.52; 95% CI 1.20-1.93; p < 0.01; I2 = 7%) compared with aspirin, while no significant difference was observed in major bleeding between groups (RR 1.57; 95% CI 0.87-2.83; p = 0.14; I2 = 63%). In a subanalysis of patients with non-major risk factors for cardioembolism, there is no difference in recurrent stroke (RR 0.98; 95% CI 0.67-1.42; p = 0.90; I2 = 0%), all-cause mortality (RR 1.24; 95% CI 0.58-2.66; p = 0.57; I2 = 0%), and major bleeding (RR 1.00, 95% CI 0.32-3.08; p = 1.00; I2 = 0%) between groups. In patients with ESUS, DOACs did not reduce the risk of recurrent stroke, ischemic stroke or systemic embolism, or all-cause mortality. Although there was a significant increase in clinically relevant non-major bleeding, major bleeding was similar between DOACs and aspirin.
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Affiliation(s)
| | - Beatriz Araújo
- Department of Medicine, Nove de Julho University, São Bernardo do Campo, Brazil
| | - André Rivera
- Department of Medicine, Nove de Julho University, São Bernardo do Campo, Brazil
| | | | | | - Marianna Leite
- School of Medicine, Santa Marcelina College, São Paulo, Brazil
| | - Antonio Mutarelli
- School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Agostinho C Pinheiro
- Department of Neurology, Massachusetts General Hospital, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
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Brunser AM, Lavados PM, Muñoz-Venturelli P, Olavarría VV, Mansilla E, Cavada G, González PE. Clinical and Radiological Differences between Patients Diagnosed with Acute Ischemic Stroke and Chameleons at the Emergency Room: Insights from a Single-Center Observational Study. Cerebrovasc Dis 2024:1-8. [PMID: 39025044 DOI: 10.1159/000540409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 07/10/2024] [Indexed: 07/20/2024] Open
Abstract
INTRODUCTION Scarce data exist about clinical/radiological differences between acute ischemic strokes diagnosed in the emergency room (AISER) and stroke chameleons (SCs). We aimed at describing the differences observed in a comprehensive stroke center in Chile. METHODS Prospective observational study of patients with ischemic stroke syndromes admitted to the emergency room (ER) of Clínica Alemana between December 2014 and October 2023. RESULTS 1,197 patients were included; of these 63 (5.2%, 95% CI: 4.1-6.6) were SC; these were younger (p < 0.001), less frequently hypertensive (p = 0.03), and they also had lower systolic (SBP) (p < 0.001), diastolic blood pressures (DBP) (p = 0.011), and NIHSS (p < 0.001). Clinically, they presented less frequently gaze (p = 0.008) and campimetry alterations (p = 0.03), facial (p < 0.001) and limb weakness (left arm [p = 0.004], right arm (p = 0.041), left leg (p = 0.001), right leg p = 0.0029), sensory abnormalities (p < 0.001), and dysarthria (p < 0.001). Neuroradiological evaluations included less frequently large vessel occlusions (p = 0.01) and other stroke locations (p = 0.005); they also differed in their etiologies (p < 0.001). Brainstem strokes (p < 0.001) and extinction/inattention symptoms (p < 0.001) were only seen in AISER. In multivariate analysis, younger age (OR: 0.945; 95% CI: 0.93-0.96), DBP (OR: 0.97; 95% CI, 0.95-0.99), facial weakness (OR: 0.39; 95% CI: 0.19-0.78), sensory abnormities (OR: 0.16.18; 95% CI, 0.05-0.4), infratentorial location (OR: 0.36; 95% CI, 0.15-0.78), posterior circulation involvement (OR: 3.02; 95% CI, 1.45-6.3), cardioembolic (OR: 3.5; 95% CI, 1.56-7.99), and undetermined (OR: 2.42; 95% CI, 1.22-4.7; 95%) etiologies, remained statistically significant. A stepwise analysis including only clinical elements present on the patient's arrival to the ER, demonstrates that age (OR: 0.95; 95% CI: 0.94-0.97), DBP (OR: 0.97; 95% CI, 0.95-0.99), the presence of atrial fibrillation (OR: 2.22; 95% CI, 1.04-4.75, NIHSS (OR: 0.88; 95% CI, 0.71-0.89) and the presence in NIHSS of 1a level of consciousness (OR: 5.66; CI: 95% 1.8-16.9), 1b level of consciousness questions (OR: 3.023; 95% CI, 1.35-6.8), facial weakness (OR: 0.3; CI: 95% 0.17-0.8), and sensory abnormalities (OR: 0.27; 95% CI, 0.1-0.72) remained statistically significant. CONCLUSION SC had clinical and radiological differences compared to AISER. An additional relevant finding is that neurological symptoms in a patient with atrial fibrillation, even with a negative diffusion-weighted imaging, should be carefully evaluated as a potential stroke until other causes are satisfactorily ruled out.
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Affiliation(s)
- Alejandro M Brunser
- Unidad de Neurología Vascular, Servicio de Neurología, Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Pablo M Lavados
- Unidad de Neurología Vascular, Servicio de Neurología, Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Unidad de Investigación y Ensayos Clínicos, Departamento de Desarrollo Académico e Investigación, Clínica Alemana de Santiago, Santiago, Chile
| | - Paula Muñoz-Venturelli
- Unidad de Neurología Vascular, Servicio de Neurología, Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Centro de Estudio Clínico (CEC), Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina, Clínica Alemana Universidad del Desarrollo Santiago, Santiago, Chile
| | - Verónica V Olavarría
- Unidad de Neurología Vascular, Servicio de Neurología, Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Eloy Mansilla
- Unidad de Neurología Vascular, Servicio de Neurología, Departamento de Neurología y Psiquiatría, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Gabriel Cavada
- Unidad de Investigación y Ensayos Clínicos, Departamento de Desarrollo Académico e Investigación, Clínica Alemana de Santiago, Santiago, Chile
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Moon I, Park SY, Kim D, Park M, Park S, Kwon SS, Kong MG, Park HW, Choi HO, Suh J, Cho YH, Lee NH, Seo HS. Incidence of atrial fibrillation in patients with renal infarction: A retrospective cohort analysis of the Korean national health insurance registry. Int J Cardiol 2024; 407:132075. [PMID: 38643801 DOI: 10.1016/j.ijcard.2024.132075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND Regarding the pathophysiology of renal infarction (RI), cardioembolic causes could have large proportion. However, there are notable variations in prevalence of atrial fibrillation (AF) among patients with RI across different studies, ranging from 17 to 65%. The primary objective of this study is to analyze the incidence of AF in patients with RI. METHODS This nationwide retrospective cohort study enrolled 5200 patients with RI from the Korean National Institute of Health Services database spanning the years 2013 to 2019. The study accessed the AF incidence rate within 12 months in patients without a prior history of AF. Events occurring within 3 months of RI diagnosis were excluded to mitigate cases diagnosed during the initial screening or those with AF diagnoses that were potentially overlooked in the past. RESULTS AF occurred in 19.1% of patients with RI over the entire period (median: 2.5 years, interquartile range 1.04-4.25 years). The majority of AF cases (16.1%) occured within the first year, resulting in an overall incidence rate of 7.0 per 100 person-years. Patients with newly developed AF were, on average, older than those who did not develop AF (64.1 vs. 57.3 years, P < 0.001). The independent predictors of AF were identified as age, male sex, higher body mass index, current smoking, ischemic heart disease, and heart failure. CONCLUSIONS Physicians should consider the implementation of active rhythm monitoring for patients with RI to identify potential occurrence of subclinical AF, even if not initially diagnosed during the initial screening after RI diagnosis.
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Affiliation(s)
- Inki Moon
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Su Yeong Park
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Dongon Kim
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Minae Park
- Department of Data Science, Hanmi Pharm. Co., Ltd., Seoul, Republic of Korea
| | - Sojeong Park
- Department of Data Science, Hanmi Pharm. Co., Ltd., Seoul, Republic of Korea
| | - Seong Soon Kwon
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Min Gyu Kong
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Hyun Woo Park
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Hyung Oh Choi
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Jon Suh
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Yoon Haeng Cho
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Nae Hee Lee
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Hye-Sun Seo
- Division of Cardiology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea.
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Ho JSY, Ho ESY, Yeo LLL, Kong WKF, Li TYW, Tan BYQ, Chan MY, Sharma VK, Poh KK, Sia CH. Use of wearable technology in cardiac monitoring after cryptogenic stroke or embolic stroke of undetermined source: a systematic review. Singapore Med J 2024; 65:370-379. [PMID: 38449074 PMCID: PMC11321540 DOI: 10.4103/singaporemedj.smj-2022-143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 05/28/2023] [Indexed: 03/08/2024]
Abstract
INTRODUCTION Prolonged cardiac monitoring after cryptogenic stroke or embolic stroke of undetermined source (ESUS) is necessary to identify atrial fibrillation (AF) that requires anticoagulation. Wearable devices may improve AF detection compared to conventional management. We aimed to review the evidence for the use of wearable devices in post-cryptogenic stroke and post-ESUS monitoring. METHODS We performed a systematic search of PubMed, EMBASE, Scopus and clinicaltrials.gov on 21 July 2022, identifying all studies that investigated the use of wearable devices in patients with cryptogenic stroke or ESUS. The outcomes of AF detection were analysed. Literature reports on electrocardiogram (ECG)-based (external wearable, handheld, patch, mobile cardiac telemetry [MCT], smartwatch) and photoplethysmography (PPG)-based (smartwatch, smartphone) devices were summarised. RESULTS A total of 27 relevant studies were included (two randomised controlled trials, seven prospective trials, 10 cohort studies, six case series and two case reports). Only four studies compared wearable technology to Holter monitoring or implantable loop recorder, and these studies showed no significant differences on meta-analysis (odds ratio 2.35, 95% confidence interval [CI] 0.74-7.48, I 2 = 70%). External wearable devices detected AF in 20.7% (95% CI 14.9-27.2, I 2 = 76%) of patients and MCT detected new AF in 9.6% (95% CI 7.4%-11.9%, I 2 = 56%) of patients. Other devices investigated included patch sensors, handheld ECG recorders and PPG-based smartphone apps, which demonstrated feasibility in the post-cryptogenic stroke and post-ESUS setting. CONCLUSION Wearable devices that are ECG or PPG based are effective for paroxysmal AF detection after cryptogenic stroke and ESUS, but further studies are needed to establish how they compare with Holter monitors and implantable loop recorder.
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Affiliation(s)
- Jamie SY Ho
- Department of Medicine, Alexandra Hospital, Singapore
| | - Elizabeth SY Ho
- Department of Computer Science and Technology, University of Cambridge, Cambridge, UK
| | - Leonard LL Yeo
- Division of Neurology, Department of Medicine, National University Health System, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - William KF Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Tony YW Li
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Benjamin YQ Tan
- Division of Neurology, Department of Medicine, National University Health System, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Vijay K Sharma
- Division of Neurology, Department of Medicine, National University Health System, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kian-Keong Poh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
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10
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Xie X, Jing J, Meng X, Johnston SC, Bath PM, Li Z, Zhao X, Wang Y, Xu Q, Wang A, Jiang Y, Li H, Wang Y. Dual Antiplatelet Therapy After Embolic Stroke of Undetermined Source: A Subgroup Analysis of the CHANCE-2 Trial. Stroke 2024; 55:1739-1747. [PMID: 38860396 DOI: 10.1161/strokeaha.124.046834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/22/2024] [Indexed: 06/12/2024]
Abstract
BACKGROUND The atherosclerotic sources of embolism are a significant contributor to embolic stroke of undetermined source (ESUS). However, there is limited evidence for the efficacy of intensive dual antiplatelet therapy for ESUS. We conducted an investigation to determine whether gene-directed dual antiplatelet therapy could reduce the risk of recurrent stroke in patients with ESUS. METHODS CHANCE-2 (Clopidogrel in High-Risk Patients with Acute Nondisabling Cerebrovascular Events-II) was an investigator-initiated, multicenter, randomized, double-blind, placebo-controlled trial that objectively compared ticagrelor plus aspirin and clopidogrel plus aspirin in patients with minor stroke or transient ischemic attack who carried CYP2C19 loss-of-function alleles in China. All study participants were classified into ESUS and non-ESUS groups for the prespecified exploratory analysis. Cox proportional hazards models were used to assess the interaction of the state of ESUS with the effects of dual antiplatelet therapy with ticagrelor-aspirin versus clopidogrel-aspirin, adjusting for sociodemographic and clinical factors. RESULTS The subgroup analysis comprised 5796 participants (90.4% of the total 6412 participants) in the CHANCE-2 trial, with a median age of 64.9 years (range, 57.0-71.4 years), of whom 1964 (33.9%) were female. These participants underwent diffusion-weighted imaging as part of the study protocol. After systematic evaluation, 15.2% of patients (881/5796) were deemed to have ESUS. The incidence of stroke recurrence in patients with ESUS was found to be 5.6% in the ticagrelor-aspirin group and 9.2% in the clopidogrel-aspirin group (hazard ratio, 0.57 [95% CI, 0.33-0.99]; P=0.04). In patients without ESUS, the respective incidence rates were 5.6% and 7.5% (hazard ratio, 0.72 [95% CI, 0.58-0.90]; P<0.01). The P value was 0.56 for the treatment × ESUS status interaction effect. CONCLUSIONS In this prespecified exploratory analysis, ticagrelor with aspirin was superior to clopidogrel with aspirin for preventing stroke at 90 days in patients with acute ischemic stroke or transient ischemic attack who carried CYP2C19 loss-of-function alleles and were classified as ESUS. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT04078737.
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Affiliation(s)
- Xuewei Xie
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Jing Jing
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Tiantan Neuroimaging Center of Excellence, Beijing, China (J.J.)
| | - Xia Meng
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | | | - Philip M Bath
- Stroke Trials Unit, Mental Health and Clinical Neuroscience, University of Nottingham, United Kingdom (P.M.B.)
| | - Zixiao Li
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Xingquan Zhao
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Yilong Wang
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Qin Xu
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Anxin Wang
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Yong Jiang
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Hao Li
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
| | - Yongjun Wang
- China National Clinical Research Center for Neurological Diseases, Beijing (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (X.X., J.J., X.M., Z.L., X.Z., Yilong Wang, Q.X., A.W., Y.J., H.L., Yongjun Wang)
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11
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Erritzøe-Jervild M, Wenstrup J, Hougaard BH, Kruuse C. Diagnosing cancer-associated ischemic stroke: A systematic review of hematological biomarkers. Int J Stroke 2024; 19:622-634. [PMID: 38192106 DOI: 10.1177/17474930241227385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
BACKGROUND AND AIM Patients suffering from cancer are reported to have an increased risk of ischemic stroke (IS). We aimed to identify cancer-associated biomarkers found to differentiate between IS associated with cancer from those not associated with cancer. SUMMARY OF REVIEW We performed a systematic search of PubMed and EMBASE databases according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The study is reported in PROSPERO (#CRD42022355129). In total, 5563 papers were screened, of which 49 papers were included. Seven biomarkers were identified which had the potential to differentiate between patients who had cancer or stroke or both conditions. D-dimer was the most frequently monitored biomarker, and high levels were significantly associated with cancer-related strokes in (42/44) studies. Fibrinogen was significantly associated with cancer-related strokes in 11/27 studies. A higher level of C-reactive protein, investigated in 19 studies, was associated with cancer-related strokes, but conclusive multivariate analysis was not performed. Finally, the four cancer-associated antigens CA125, CA153, CA199, and carcinoembryonic antigen were only reported on in three to six studies, respectively. These studies all originated from the Guangxi province in China. CA125 was associated with an increased risk of IS in four of six studies. CONCLUSION Increased D-dimer seems associated with cancer-related IS. CRP may also be a candidate as a cancer-associated stroke biomarker, but this requires further verification. Fibrinogen and the more specific cancer biomarkers have not yet been proven helpful for detecting cancer-related strokes.
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Affiliation(s)
- Mai Erritzøe-Jervild
- Department of Neurology, Neurovascular Research Unit, Copenhagen University Hospital-Herlev Gentofte, Copenhagen, Denmark
- Department of Brain and Spinal Cord Injury, Neuroscience Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Jonathan Wenstrup
- Department of Neurology, Neurovascular Research Unit, Copenhagen University Hospital-Herlev Gentofte, Copenhagen, Denmark
- Emergency Medical Services, Copenhagen, Denmark
- Emergency Medical Services, Region Zealand, Denmark
| | | | - Christina Kruuse
- Department of Neurology, Neurovascular Research Unit, Copenhagen University Hospital-Herlev Gentofte, Copenhagen, Denmark
- Department of Brain and Spinal Cord Injury, Neuroscience Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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12
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Wu J, Zou Y, Meng X, Fan Z, van der Geest R, Cui F, Li J, Zhang T, Zhang F. Increased incidence of napkin-ring sign plaques on cervicocerebral computed tomography angiography associated with the risk of acute ischemic stroke occurrence. Eur Radiol 2024; 34:4438-4447. [PMID: 38001250 DOI: 10.1007/s00330-023-10404-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/06/2023] [Accepted: 09/18/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVES Carotid atherosclerosis plays an essential role in the occurrence of ischemic stroke. This study aimed to investigate whether a larger burden of napkin-ring sign (NRS) plaques on cervicocerebral computed tomography angiography (CTA) increased the risk of acute ischemic stroke (AIS). METHODS This retrospective, single-center, cross-sectional study enrolled patients with NRS plaques identified in the subclavian arteries, brachiocephalic trunk, carotid arterial system, and vertebrobasilar circulation on contrast-enhanced cervicocerebral CTA. Patients were divided into AIS and non-AIS groups based on imaging within 12 h of symptom onset. Univariate and multivariate logistic regression analyses were performed to determine the risk factor of AIS occurrence. RESULTS A total of 202 patients (66.72 years ± 8.97, 157 men) were evaluated. Plaques with NRS in each subject of the AIS group (N = 98) were significantly more prevalent than that in the control group (N = 104) (1.96 ± 1.17 vs 1.41 ± 0.62). In the AIS group, there were substantially more NRS plaques on the ipsilateral side than contralateral side (1.55 ± 0.90 vs. 0.41 ± 0.66). NRS located on the ipsilateral side of the AIS showed an area under the receiver curve (AUC) of 0.86 to identify ischemic stroke. NRS plaque amounts were an independent risk factor for AIS occurrence (odds ratio, 1.86) after adjusting for other factors. CONCLUSIONS Increased incidence of napkin-ring sign plaques on cervicocerebral CTA was positively associated with AIS occurrence, which could aid in detecting asymptomatic atherosclerotic patients at high risk of AIS in routine screening or emergency settings. CLINICAL RELEVANCE STATEMENT Napkin-ring sign plaque provides an important imaging target for estimating acute ischemic stroke risk and identifying high-risk patients in routine screening or emergency settings, so that timely anti-atherosclerotic therapy can be used for prevention. KEY POINTS • This cross-sectional study investigated the association between high-risk carotid artery plaques and acute ischemic stroke. • Increased incidence of napkin-ring sign plaques on cervicocerebral computed tomography angiography is positively associated with acute ischemic stroke occurrence. • Napkin-ring signs help identify risky patients prone to acute ischemic stroke to facilitate prevention.
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Affiliation(s)
- Jingping Wu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Ying Zou
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Xiao Meng
- Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Zhaoyang Fan
- Department of Radiology, University of Southern California, Los Angeles, CA, USA
| | - Rob van der Geest
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Fang Cui
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Jianyong Li
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Tengyuan Zhang
- Department of Neurology, Hainan Hospital of PLA General Hospital, Sanya, China
| | - Fan Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
- Department of Radiology, Hainan Hospital of PLA General Hospital, Sanya, China.
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Lasek-Bal A, Konka A, Puz P, Boidol J, Kosarz-Lanczek K, Puz A, Wagner-Kusz A, Tomasik A, Student S. The Usefulness of Outpatient Cardiac Telemetry in Patients with Cryptogenic Stroke. J Clin Med 2024; 13:3819. [PMID: 38999384 PMCID: PMC11242364 DOI: 10.3390/jcm13133819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/10/2024] [Accepted: 06/18/2024] [Indexed: 07/14/2024] Open
Abstract
Introduction: Atrial fibrillation (AF), apart from non-stenotic supracardiac atherosclerosis and neoplastic disease, is the leading cause of cryptogenic stroke, including embolic stroke of un-determined source (ESUS). The aim of our study was to determine the prevalence of AF in ESUS patients based on 30-day telemetric heart rate monitoring initiated within three months after stroke onset. Another aim was to identify factors that increase the likelihood of detecting subsequent AF among ESUS patients. Material and Methods: patients with first-ever stroke classified as per the ESUS definition were eligible for this study. All patients underwent outpatient 30-day telemetric heart rate monitoring. Results: In the period between 2020 and 2022, 145 patients were included. The mean age of all qualified patients was 54; 40% of eligible patients were female. Six patients (4.14%), mostly male patients (4 vs. 2), were diagnosed with AF within the study period. In each case, the diagnosis related to a patient whose stroke occurred in the course of large vessel occlusion. Episodes of AF were detected between day 1 and 25 after starting ECG monitoring. Out of the analyzed parameters that increase the probability of, A.F.; only supraventricular extrasystoles proved to be an independent factor regarding an increased risk of AF [OR 1.046, CI 95% 1.016-1.071, p-value < 0.01]. Conclusions: The use of telemetry heart rhythm monitoring in an outpatient setting can detect AF in 4% of ESUS patients who have undergone prior diagnostic procedures for cardiogenic embolism. Supraventricular extrasystoles significantly increases the likelihood of AF detection in patients with ESUS within three months following stroke. Comorbid coronary artery disease, diabetes and hypertension, rather than a single-factor clinical burden, increase the likelihood of AF detection in older ESUS patients. ESUS in the course of large vessel occlusion is probably associated with an increased likelihood of cardiogenic embolism.
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Affiliation(s)
- Anetta Lasek-Bal
- Department of Neurology, School of Health Sciences, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
- Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, 40-055 Katowice, Poland; (K.K.-L.)
| | - Adam Konka
- Silesian Park of Medical Technology Kardio-Med Silesia, 42-800 Zabrze, Poland; (A.K.); (A.T.)
| | - Przemysław Puz
- Department of Neurology, School of Health Sciences, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
- Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, 40-055 Katowice, Poland; (K.K.-L.)
| | - Joanna Boidol
- Silesian Park of Medical Technology Kardio-Med Silesia, 42-800 Zabrze, Poland; (A.K.); (A.T.)
- 1st Department of Cardiology and Angiology, Silesian Center for Heart Diseases, 41-800 Zabrze, Poland
| | - Katarzyna Kosarz-Lanczek
- Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, 40-055 Katowice, Poland; (K.K.-L.)
| | - Agnieszka Puz
- Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, 40-055 Katowice, Poland; (K.K.-L.)
| | - Anna Wagner-Kusz
- Department of Neurology, School of Health Sciences, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
- Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, 40-055 Katowice, Poland; (K.K.-L.)
| | - Andrzej Tomasik
- Silesian Park of Medical Technology Kardio-Med Silesia, 42-800 Zabrze, Poland; (A.K.); (A.T.)
- 2nd Department of Cardiology in Zabrze, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 40-055 Katowice, Poland
| | - Sebastian Student
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 44-100 Gliwice, Poland;
- Biotechnology Center, Silesian University of Technology, 44-100 Gliwice, Poland
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14
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Yamamoto Y, Nagakane Y, Tanaka E, Yamada T, Fujinami J, Ohara T. How Topographic Diffusion-Weighted Imaging Patterns can Predict the Potential Embolic Source. Clin Neuroradiol 2024; 34:363-371. [PMID: 38169002 DOI: 10.1007/s00062-023-01366-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/09/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE To develop an imaging prediction model for patients with embolic stroke of undetermined source (ESUS), we investigated the association of topographic diffusion-weighted imaging (DWI) patterns with potential embolic sources (PES) identified by transesophageal echocardiography. METHODS From a total of 992 consecutive patients with embolic stroke, 366 patients with the ESUS group were selected. ESUS was defined as no atrial fibrillation (Af) within 24h from admission and no PES after general examination. Clinical variables include age (> 80years, 70-80 years), sex, vascular risk factors and left atrial diameter > 4 cm. Age, sex and vascular risk factors adjusted odds ratio of each DWI for the different PESs were calculated. DWI was determined based on the arterial territories. Middle cerebral arteries were divided into 4 segments, i.e., M1-M4. Moreover, M2 segments were subdivided into superior and inferior branches. RESULTS The 366 patients consisted of 168 with paroxysmal Af (pAf), 77 with paradoxical embolism, 71 with aortic embolism and 50 with undetermined embolism after transesophageal echocardiography. The variables adjusted odds ratio (OR) of internal carotid artery (OR: 12.1, p = 0.037), M1 (4.2, p = 0.001), inferior M2 (7.5, p = 0.0041) and multiple cortical branches (12.6, p < 0.0001) were significantly higher in patients with pAf. Striatocapsular infarction (12.5, p < 0.0001) and posterior inferior cerebellar artery infarcts (3.6, p = 0.018) were significantly associated with paradoxical embolism. Clinical variables adjusted OR of multiple small scattered infarcts (8.3, p < 0.0001) were significantly higher in patients with aortic embolism. CONCLUSION The associations of DWI with different PES have their distinctive characteristics and DWI along with clinical variables may help predict PES in patients with ESUS.
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Affiliation(s)
- Y Yamamoto
- Department of Neurology, Kyoto Katsura Hospital, 615-8256. 17 Yamada Hiraocho, Nishikyoku, Kyoto, Japan.
| | - Y Nagakane
- Department of Neurology, Kyoto Second Red Cross Hospital, 602-8026. 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, Japan
| | - E Tanaka
- Department of Neurology, Kyoto Prefectural University of Medicine, 602-8566. 465 Kajiicho Kamigyoku, Kyoto, Japan
| | - T Yamada
- Department of Neurology and Stroke Treatment, Japanese Red Cross Kyoto Daiichi Hospital, 605-0981. 15-749 Honmachi, Higashiyama, Kyoto, Japan
| | - J Fujinami
- Department of Neurology, Kyoto Second Red Cross Hospital, 602-8026. 355-5 Haruobi-cho, Kamigyo-ku, Kyoto, Japan
| | - T Ohara
- Department of Neurology, Kyoto Prefectural University of Medicine, 602-8566. 465 Kajiicho Kamigyoku, Kyoto, Japan
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15
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Thakur M, Alsinbili A, Chattopadhyay R, Warburton EA, Khadjooi K, Induruwa I. Identifying the optimal time period for detection of atrial fibrillation after ischaemic stroke and TIA: An updated systematic review and meta-analysis of randomized control trials. Int J Stroke 2024; 19:499-505. [PMID: 37947341 DOI: 10.1177/17474930231215277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
BACKGROUND Atrial fibrillation (AF) is a major risk factor for ischaemic stroke (IS) and transient ischaemic attack (TIA). The timely detection of first-diagnosed or "new" AF (nAF) would prompt a switch from antiplatelets to anticoagulation to reduce the risk of stroke recurrence; however, the optimal timing and duration of rhythm monitoring to detect nAF remains unclear. AIMS We searched MEDLINE, PubMed, Cochrane database, and Google Scholar to undertake a systematic review and meta-analysis of randomized controlled trials (RCT) between 2012 and 2023 investigating nAF detection after IS and TIA. Outcome measures were overall detection of nAF (control; (usual care) compared to intervention; (continuous cardiac monitoring >72 h)) and the time period in which nAF detection is highest (0-14 days, 15-90 days, 91-180 days, or 181-365 days). A random-effects model with generic inverse variance weights was used to pool the most adjusted effect measure from each trial. SUMMARY OF REVIEW A total of eight RCTs investigated rhythm monitoring after IS, totaling 5820 patients. The meta-analysis of the studies suggested that continuous cardiac monitoring was associated with a pooled odds ratio of 3.81 (95% CI 2.14 to 6.77), compared to usual care (control), for nAF detection. In the time period analysis, the odds ratio for nAF detection at 0-14 days, 15-90 days, 91-180 days, 181-365 days were 1.79 (1.24-2.58); 2.01 (0.63-6.37); 0.98 (0.16-5.90); and 2.92 (1.30-6.56), respectively. CONCLUSION There is an almost fourfold increase in nAF detection with continuous cardiac monitoring, compared to usual care. The results also demonstrate two statistically significant time periods in nAF detection; at 0-14 days and 6-12 months following monitoring commencement. These data support the utilization of different monitoring methods to cover both time periods and a minimum of 1 year of monitoring to maximize nAF detection in patients after IS and TIA.
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Affiliation(s)
- Mrinal Thakur
- Department of Stroke, Cambridge University Hospitals, Cambridge, UK
| | - Ahmed Alsinbili
- Department of Stroke, Cambridge University Hospitals, Cambridge, UK
| | | | - Elizabeth A Warburton
- Department of Stroke, Cambridge University Hospitals, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Kayvan Khadjooi
- Department of Stroke, Cambridge University Hospitals, Cambridge, UK
| | - Isuru Induruwa
- Department of Stroke, Cambridge University Hospitals, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
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16
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Marko M, Singh N, Ospel JM, Uchida K, Almekhlafi MA, Demchuk AM, Nogueira RG, McTaggart RA, Poppe AY, Rempel JL, Tymianski M, Hill MD, Goyal M, Menon BK. Symptomatic Non-stenotic Carotid Disease in Embolic Stroke of Undetermined Source : Analysis of the ESCAPE-NA1 Trial. Clin Neuroradiol 2024; 34:333-339. [PMID: 38108829 PMCID: PMC11130033 DOI: 10.1007/s00062-023-01365-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/09/2023] [Indexed: 12/19/2023]
Abstract
PURPOSE Non-stenotic (< 50%) carotid disease may play an important etiological role in ischemic stroke classified as embolic stroke of undetermined source (ESUS). We aimed to assess the prevalence of non-stenotic carotid disease and its association with ipsilateral ischemic stroke. METHODS Data are from ESCAPE-NA1, a randomized controlled trial investigating the neuroprotectant nerinetide in patients with acute ischemic stroke and large vessel occlusion (LVO). The degree of stenosis of the extracranial internal carotid artery (ICA) and high-risk plaque features were assessed on baseline computed tomography (CT) angiography. We evaluated the association of non-stenotic carotid disease and ipsilateral stroke by age-adjusted and sex-adjusted logistic regression and calculated the attributable risk of ipsilateral stroke caused by non-stenotic carotid disease. RESULTS After excluding patients with non-assessable imaging, symptomatic > 50% carotid stenosis and extracranial dissection, 799/1105 (72.1%) patients enrolled in ESCAPE-NA1 remained for this analysis. Of these, 127 (15.9%) were classified as ESUS. Non-stenotic carotid disease occurred in 34/127 ESUS patients (26.8%) and was associated with the presence of ipsilateral ischemic stroke (odds ratio, OR 1.6, 95% confidence interval, CI 1.0-2.6, p = 0.049). The risk of ipsilateral ischemic stroke attributable to non-stenotic carotid disease in ESUS was estimated to be 19.7% (95% CI -5.7% to 39%), the population attributable risk was calculated as 4.3%. Imaging features such as plaque thickness, plaque irregularity or plaque ulceration were not different between non-stenotic carotids with vs. without ipsilateral stroke. CONCLUSION Non-stenotic carotid disease frequently occurs in patients classified as ESUS and is associated with ipsilateral ischemic stroke. Our findings support the role of non-stenotic carotid disease as stroke etiology in ESUS, but further prospective research is needed to prove a causal relationship.
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Affiliation(s)
- Martha Marko
- Department of Neurology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
| | - Nishita Singh
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Johanna M Ospel
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kazutaka Uchida
- Department of Neurosurgery, Hyogo Medical University, Nishinomiya, Japan
| | - Mohammed A Almekhlafi
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Andrew M Demchuk
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Raul G Nogueira
- Emory University School of Medicine, Grady Memorial Hospital, Atlanta, USA
| | - Ryan A McTaggart
- Warren Alpert School of Medicine, Brown University, Providence, RI, USA
| | - Alexandre Y Poppe
- Department of Medicine (Neurology), Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | | | | | - Michael D Hill
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Mayank Goyal
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Bijoy K Menon
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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17
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Clark A, Ferkh A, Vandenberg J, Elhindi J, Thomas L. Altered left atrial metrics in patients with cryptogenic stroke: A systematic review and meta-analysis. Eur J Clin Invest 2024; 54:e14175. [PMID: 38308431 DOI: 10.1111/eci.14175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/14/2024] [Accepted: 01/22/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND There is no defined cause for cryptogenic stroke/embolic stroke of undetermined source (CS-ESUS). As atrial fibrillation (AF) develops in a significant proportion of these patients, it has been suggested that left atrial (LA) myopathy may predispose to CS-ESUS. We investigated alterations in echocardiographic measures of LA size and function in patients with CS-ESUS. METHODS A systematic literature review and meta-analysis was performed. PubMed, EMBASE, Cochrane Library, Web of Science and SCOPUS were searched for articles published between 1 January 1990 and 10 February 2023. All observational studies of adult CS-ESUS patients with LA volume or function measurements performed by transthoracic echocardiogram were included. Individual random effects meta-analyses were performed on LA measurements in the CS-ESUS patients using subgroup analysis of comparator groups. RESULTS We included 29 articles with 3927 CS-ESUS patients. Analysis of weighted mean differences showed CS-ESUS patients had altered LA structure and function parameters, with a larger maximum indexed LA volume, reduced LA emptying fraction and/or LA reservoir strain, compared to healthy controls and noncardioembolic stroke patients. Conversely, CS-ESUS patients had a smaller left atrium with better function, compared to cardioembolic stroke patients and CS-ESUS patients who subsequently developed atrial fibrillation. CONCLUSIONS LA volume and function are altered in CS-ESUS patients compared to healthy controls and other stroke aetiologies. An underlying atrial myopathy in a subset of CS-ESUS patients may be involved in both thrombogenesis and dysrhythmia (specifically AF). While LA functional assessment is not currently recommended following stroke, it may offer an opportunity for recurrent stroke risk stratification.
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Affiliation(s)
- Amy Clark
- Department of Cardiology, Westmead Hospital, Westmead, New South Wales, Australia
- Westmead Clinical School, University of Sydney, Camperdown, Sydney, New South Wales, Australia
| | - Aaisha Ferkh
- Department of Cardiology, Westmead Hospital, Westmead, New South Wales, Australia
- Westmead Clinical School, University of Sydney, Camperdown, Sydney, New South Wales, Australia
| | - Jamie Vandenberg
- Mark Cowley Lidwill Research Program in Cardiac Electrophysiology, Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia
- School of Clinical Medicine, UNSW Sydney, Darlinghurst, New South Wales, Australia
| | - James Elhindi
- WSLHD Research and Education Network, Westmead Hospital, Westmead, New South Wales, Australia
| | - Liza Thomas
- Department of Cardiology, Westmead Hospital, Westmead, New South Wales, Australia
- Westmead Clinical School, University of Sydney, Camperdown, Sydney, New South Wales, Australia
- South West Clinical School, University of New South Wales, Kensington, New South Wales, Australia
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18
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Ntaios G, Baumgartner H, Doehner W, Donal E, Edvardsen T, Healey JS, Iung B, Kamel H, Kasner SE, Korompoki E, Navi BB, Pristipino C, Saba L, Schnabel RB, Svennberg E, Lip GYH. Embolic strokes of undetermined source: a clinical consensus statement of the ESC Council on Stroke, the European Association of Cardiovascular Imaging and the European Heart Rhythm Association of the ESC. Eur Heart J 2024; 45:1701-1715. [PMID: 38685132 PMCID: PMC11107123 DOI: 10.1093/eurheartj/ehae150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Abstract
One in six ischaemic stroke patients has an embolic stroke of undetermined source (ESUS), defined as a stroke with unclear aetiology despite recommended diagnostic evaluation. The overall cardiovascular risk of ESUS is high and it is important to optimize strategies to prevent recurrent stroke and other cardiovascular events. The aim of clinicians when confronted with a patient not only with ESUS but also with any other medical condition of unclear aetiology is to identify the actual cause amongst a list of potential differential diagnoses, in order to optimize secondary prevention. However, specifically in ESUS, this may be challenging as multiple potential thromboembolic sources frequently coexist. Also, it can be delusively reassuring because despite the implementation of specific treatments for the individual pathology presumed to be the actual thromboembolic source, patients can still be vulnerable to stroke and other cardiovascular events caused by other pathologies already identified during the index diagnostic evaluation but whose thromboembolic potential was underestimated. Therefore, rather than trying to presume which particular mechanism is the actual embolic source in an ESUS patient, it is important to assess the overall thromboembolic risk of the patient through synthesis of the individual risks linked to all pathologies present, regardless if presumed causally associated or not. In this paper, a multi-disciplinary panel of clinicians/researchers from various backgrounds of expertise and specialties (cardiology, internal medicine, neurology, radiology and vascular surgery) proposes a comprehensive multi-dimensional assessment of the overall thromboembolic risk in ESUS patients through the composition of individual risks associated with all prevalent pathologies.
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Affiliation(s)
- George Ntaios
- Department of Internal Medicine, School of Health Sciences, University of Thessaly, Larissa University Hospital, Larissa 41132, Greece
| | - Helmut Baumgartner
- Department of Cardiology III: Adult Congenital and Valvular Heart Disease, University Hospital Muenster, Muenster, Germany
| | - Wolfram Doehner
- Department of Cardiology (Campus Virchow), Center of Stroke Research Berlin, German Centre for Cardiovascular Research (DZHK) partner site Berlin, Berlin Institute of Health-Center for Regenerative Therapies, Deutsches Herzzentrum der Charité, Charité, Berlin, Germany
| | - Erwan Donal
- Service de Cardiologie et CIC-IT 1414, CHU Rennes, Rennes, France
| | - Thor Edvardsen
- Department of Cardiology, Faculty of Medicine, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway
| | - Jeff S Healey
- Cardiology Division, McMaster University, Hamilton, Canada
| | - Bernard Iung
- Bichat Hospital, APHP and Université Paris-Cité, INSERM LVTS U1148, Paris, France
| | - Hooman Kamel
- Clinical and Translational Neuroscience Unit, Feil Family Brain and Mind Research Institute, Department of Neurology, Weill Cornell Medicine, New York, NY, USA
| | - Scott E Kasner
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Eleni Korompoki
- Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Babak B Navi
- Clinical and Translational Neuroscience Unit, Feil Family Brain and Mind Research Institute, Department of Neurology, Weill Cornell Medicine, New York, NY, USA
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christian Pristipino
- Interventional and Intensive Cardiology Unit, San Filippo Neri Hospital, ASL Roma 1, Rome, Italy
| | - Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari—Polo di Monserrato, Cagliari, Italy
| | - Renate B Schnabel
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Luebeck, Germany
| | - Emma Svennberg
- Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University, Liverpool Heart & Chest Hospital, Liverpool, UK
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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19
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Lee HJ, Schwamm LH, Sansing LH, Kamel H, de Havenon A, Turner AC, Sheth KN, Krishnaswamy S, Brandt C, Zhao H, Krumholz H, Sharma R. StrokeClassifier: ischemic stroke etiology classification by ensemble consensus modeling using electronic health records. NPJ Digit Med 2024; 7:130. [PMID: 38760474 PMCID: PMC11101464 DOI: 10.1038/s41746-024-01120-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 04/23/2024] [Indexed: 05/19/2024] Open
Abstract
Determining acute ischemic stroke (AIS) etiology is fundamental to secondary stroke prevention efforts but can be diagnostically challenging. We trained and validated an automated classification tool, StrokeClassifier, using electronic health record (EHR) text from 2039 non-cryptogenic AIS patients at 2 academic hospitals to predict the 4-level outcome of stroke etiology adjudicated by agreement of at least 2 board-certified vascular neurologists' review of the EHR. StrokeClassifier is an ensemble consensus meta-model of 9 machine learning classifiers applied to features extracted from discharge summary texts by natural language processing. StrokeClassifier was externally validated in 406 discharge summaries from the MIMIC-III dataset reviewed by a vascular neurologist to ascertain stroke etiology. Compared with vascular neurologists' diagnoses, StrokeClassifier achieved the mean cross-validated accuracy of 0.74 and weighted F1 of 0.74 for multi-class classification. In MIMIC-III, its accuracy and weighted F1 were 0.70 and 0.71, respectively. In binary classification, the two metrics ranged from 0.77 to 0.96. The top 5 features contributing to stroke etiology prediction were atrial fibrillation, age, middle cerebral artery occlusion, internal carotid artery occlusion, and frontal stroke location. We designed a certainty heuristic to grade the confidence of StrokeClassifier's diagnosis as non-cryptogenic by the degree of consensus among the 9 classifiers and applied it to 788 cryptogenic patients, reducing cryptogenic diagnoses from 25.2% to 7.2%. StrokeClassifier is a validated artificial intelligence tool that rivals the performance of vascular neurologists in classifying ischemic stroke etiology. With further training, StrokeClassifier may have downstream applications including its use as a clinical decision support system.
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Affiliation(s)
- Ho-Joon Lee
- Department of Genetics and Yale Center for Genome Analysis, Yale School of Medicine, New Haven, CT, USA.
| | - Lee H Schwamm
- Department of Neurology and Comprehensive Stroke Center, Massachusetts General Hospital and Harvard Medical School Boston, Boston, MA, USA
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Lauren H Sansing
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Hooman Kamel
- Department of Neurology, Weill Cornell Medicine, New York City, NY, USA
| | - Adam de Havenon
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Ashby C Turner
- Department of Neurology and Comprehensive Stroke Center, Massachusetts General Hospital and Harvard Medical School Boston, Boston, MA, USA
| | - Kevin N Sheth
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Smita Krishnaswamy
- Departments of Genetics and Computer Science, Yale School of Medicine, New Haven, CT, USA
| | - Cynthia Brandt
- Department of Biomedical Informatics and Data Science, Yale School of Medicine, New Haven, CT, USA
| | - Hongyu Zhao
- Departments of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Harlan Krumholz
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Richa Sharma
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA.
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20
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Ming C, Lee GJW, Teo YH, Teo YN, Toh EMS, Li TYW, Guo CY, Ding J, Zhou X, Teoh HL, Seow SC, Yeo LLL, Sia CH, Lip GYH, Motani M, Tan BYQ. Machine Learning Modeling to Predict Atrial Fibrillation Detection in Embolic Stroke of Undetermined Source Patients. J Pers Med 2024; 14:534. [PMID: 38793116 PMCID: PMC11122555 DOI: 10.3390/jpm14050534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND In patients with embolic stroke of undetermined source (ESUS), occult atrial fibrillation (AF) has been implicated as a key source of cardioembolism. However, only a minority acquire implantable cardiac loop recorders (ILRs) to detect occult paroxysmal AF, partly due to financial cost and procedural inconvenience. Without the initiation of appropriate anticoagulation, these patients are at risk of increased ischemic stroke recurrence. Hence, cost-effective and accurate methods of predicting AF in ESUS patients are highly sought after. OBJECTIVE We aimed to incorporate clinical and echocardiography data into machine learning (ML) algorithms for AF prediction on ILRs in ESUS. METHODS This was a single-center cohort study that included 157 consecutive patients diagnosed with ESUS from October 2014 to October 2017 who had ILR evaluation. We developed four ML models, with hyperparameters tuned, to predict AF detection on an ILR. RESULTS The median age of the cohort was 67 (IQR 59-74) years old and the median monitoring duration was 1051 (IQR 478-1287) days. Of the 157 patients, 32 (20.4%) had occult AF detected on the ILR. Support vector machine predicted for AF with a 95% confidence interval area under the receiver operating characteristic curve (AUC) of 0.736-0.737, multilayer perceptron with an AUC of 0.697-0.708, XGBoost with an AUC of 0.697-0.697, and random forest with an AUC of 0.663-0.674. ML feature importance found that age, HDL-C, and admitting heart rate were important non-echocardiography variables, while peak mitral A-wave velocity and left atrial volume were important echocardiography parameters aiding this prediction. CONCLUSION Machine learning modeling incorporating clinical and echocardiographic variables predicted AF in ESUS patients with moderate accuracy.
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Affiliation(s)
- Chua Ming
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Geraldine J. W. Lee
- Department of Statistics and Data Science, Faculty of Science, National University of Singapore, Singapore 117546, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Emma M. S. Toh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Tony Y. W. Li
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Chloe Yitian Guo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Jiayan Ding
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Xinyan Zhou
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Hock Luen Teoh
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
| | - Swee-Chong Seow
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Leonard L. L. Yeo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
| | - Ching-Hui Sia
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Gregory Y. H. Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool L14 3PE, UK
- Danish Center for Health Services Research, Department of Clinical Medicine, Aalborg University, 9220 Aalborg, Denmark
| | - Mehul Motani
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
- N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore
- Institute for Digital Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
- Institute of Data Science, National University of Singapore, Singapore 117602, Singapore
| | - Benjamin YQ Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
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21
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Raco J, Shah R, Farbaniec M, Norby FL, Mann M, Gonzalez MD, Naccarelli GV, Maheshwari A. Left Atrial Mechanical Dysfunction Is Associated With Atrial Fibrillation and Recurrent Stroke After Cryptogenic Stroke. J Stroke 2024; 26:335-338. [PMID: 38836282 PMCID: PMC11164596 DOI: 10.5853/jos.2024.00584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 06/06/2024] Open
Affiliation(s)
- Joseph Raco
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Ravi Shah
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Michael Farbaniec
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Faye L. Norby
- Department of Epidemiology, University of Minnesota, Minneapolis, MN, USA
| | - Megan Mann
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Mario D. Gonzalez
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Gerald V. Naccarelli
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
| | - Ankit Maheshwari
- Division of Cardiology, Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA, USA
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22
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Al-Sabbagh MQ, Eswaradass P. The Covert Impact of Chiari Network and Eustachian Valves on Stroke: A Scoping Review and Meta-Analysis. Neurologist 2024; 29:188-193. [PMID: 37839085 DOI: 10.1097/nrl.0000000000000530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
BACKGROUND The role of Chiari network (CN) and Eustachian valves (EVs) in cardioembolic strokes is still unclear. There is inconsistency in the literature regarding clinical approach to these lesions to reduce stroke risk. We aimed to describe clinical presentation, neuroimaging and cardioimaging features, as well as management approaches for CN and EV in stroke context. REVIEW SUMMARY A systemic search was carried out using PubMed and Web of Science following PRISMA guidelines, Supplemental Digital Content 1 ( http://links.lww.com/NRL/A123 ). We retrieved 4 case-control studies, 2 cross sectional studies as well 8 case reports, with a total of 883 patients with a mean age of 44.6 years (±13.8). The combined prevalence of EV/CN in stroke-related patent foramen ovale (PFO) patients was 50% (95% CI: 31-68). With isolated prevalence for EV and CN of 43% (95% CI: 25-63), 18% (95% CI: 12-25), respectively. Patients with history of stroke had higher prevalence of EV/CN compared with controls odds ratio=2.45 (95% CI: 1.2-5, P <0.01). All case-control and cross-sectional studies defined EV/CN by transesophageal echocardiography or intracardiac cardiography. In the 8 case reports, 7 cases were diagnosed by transesophageal echocardiography, while only 1 case was diagnosed postmortem. CONCLUSION EV/CN are relatively common findings in stroke patients with PFO. While it appears that presence of EV/CN with a PFO increases the risk of cardioembolic stroke, they remain underrecognized. EV/CN should be considered as high-risk PFO features. There is a scarcity of research emphasizing their role in clinical decision making, especially PFO closure and antithrombotic therapy choice.
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23
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Ryu WS, Schellingerhout D, Lee H, Lee KJ, Kim CK, Kim BJ, Chung JW, Lim JS, Kim JT, Kim DH, Cha JK, Sunwoo L, Kim D, Suh SI, Bang OY, Bae HJ, Kim DE. Deep Learning-Based Automatic Classification of Ischemic Stroke Subtype Using Diffusion-Weighted Images. J Stroke 2024; 26:300-311. [PMID: 38836277 PMCID: PMC11164582 DOI: 10.5853/jos.2024.00535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/04/2024] [Accepted: 05/07/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND AND PURPOSE Accurate classification of ischemic stroke subtype is important for effective secondary prevention of stroke. We used diffusion-weighted image (DWI) and atrial fibrillation (AF) data to train a deep learning algorithm to classify stroke subtype. METHODS Model development was done in 2,988 patients with ischemic stroke from three centers by using U-net for infarct segmentation and EfficientNetV2 for subtype classification. Experienced neurologists (n=5) determined subtypes for external test datasets, while establishing a consensus for clinical trial datasets. Automatically segmented infarcts were fed into the model (DWI-only algorithm). Subsequently, another model was trained, with AF included as a categorical variable (DWI+AF algorithm). These models were tested: (1) internally against the opinion of the labeling experts, (2) against fresh external DWI data, and (3) against clinical trial dataset. RESULTS In the training-and-validation datasets, the mean (±standard deviation) age was 68.0±12.5 (61.1% male). In internal testing, compared with the experts, the DWI-only and the DWI+AF algorithms respectively achieved moderate (65.3%) and near-strong (79.1%) agreement. In external testing, both algorithms again showed good agreements (59.3%-60.7% and 73.7%-74.0%, respectively). In the clinical trial dataset, compared with the expert consensus, percentage agreements and Cohen's kappa were respectively 58.1% and 0.34 for the DWI-only vs. 72.9% and 0.57 for the DWI+AF algorithms. The corresponding values between experts were comparable (76.0% and 0.61) to the DWI+AF algorithm. CONCLUSION Our model trained on a large dataset of DWI (both with or without AF information) was able to classify ischemic stroke subtypes comparable to a consensus of stroke experts.
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Affiliation(s)
- Wi-Sun Ryu
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
- Artificial Intelligence Research Center, JLK Inc., Seoul, Korea
| | - Dawid Schellingerhout
- Department of Neuroradiology and Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Hoyoun Lee
- Artificial Intelligence Research Center, JLK Inc., Seoul, Korea
| | - Keon-Joo Lee
- Department of Neurology, Korea University Guro Hospital, Seoul, Korea
| | - Chi Kyung Kim
- Department of Neurology, Korea University Guro Hospital, Seoul, Korea
| | - Beom Joon Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jong-Won Chung
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Sung Lim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joon-Tae Kim
- Department of Neurology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Dae-Hyun Kim
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - Jae-Kwan Cha
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - Leonard Sunwoo
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dongmin Kim
- Artificial Intelligence Research Center, JLK Inc., Seoul, Korea
| | - Sang-Il Suh
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee-Joon Bae
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong-Eog Kim
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
- National Priority Research Center for Stroke, Goyang, Korea
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24
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Didier R, Garnier L, Duloquin G, Meloux A, Sagnard A, Graber M, Dogon G, Benali K, Pommier T, Laurent G, Vergely C, Bejot Y, Guenancia C. Distribution of atrial cardiomyopathy markers and association with atrial fibrillation detected after ischaemic stroke in the SAFAS study. Stroke Vasc Neurol 2024; 9:165-173. [PMID: 37429637 PMCID: PMC11103154 DOI: 10.1136/svn-2023-002447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Atrial cardiomyopathy (AC) is an emerging concept explaining the pathophysiology of cardioembolic strokes in absence of atrial fibrillation (AF). A definition based on the presence of electrical abnormality (P-wave terminal force in lead V1 (PTFV1) >5000 µV×ms), N-Terminal pro-B-type natriuretic peptide (NT pro BNP) >250 pg/mL and/or indexed left atrial diameter (LADI) >3 cm/m² is currently tested in the ARCADIA (AtRial Cardiopathy and Antithrombotic Drugs In prevention After cryptogenic stroke) trial. We set out to estimate the prevalence of AC as defined in the ARCADIA trial, its determinants and its association with AF detected after stroke (AFDAS). METHODS Stepwise screening for silent Atrial Fibrillation After Stroke (SAFAS) study prospectively included 240 ischaemic stroke patients. AC markers were complete for 192 of them and 9 were not included in this analysis because AF had been diagnosed on admission. RESULTS A total of 183 patients were analysed, of whom 57% (104 patients) met the AC criteria (79 NT-proBNP, 47 PTFV1, 4 LADI). In the multivariate logistic regression, C reactive protein >3 mg/L (OR (95% CI) 2.60 (1.30 to 5.21), p=0.007) and age (OR (95% CI) 1.07 (1.04 to 1.10), p<0.001) were found to be independently associated with AC. After 6 months of follow-up, AFDAS was detected in 33% of AC patients and in 14% of the remaining ones (p=0.003). However, AC was not independently associated with AFDAS, contrary to left atrial volume index (>34 mL/m2, OR 2.35 (CI 1.09 to 5.06) p=0029). CONCLUSION AC as defined in ARCADIA is mostly based on NT pro BNP elevation (76% of patients) and is associated with age and inflammation. Moreover, AC was not independently associated with AFDAS at follow-up. The ARCADIA trial, which compares aspirin to apixaban in patients with embolic strokes of undetermined source with AC markers and must, therefore be analysed in the light of these limitations. TRIAL REGISTRATION NUMBER NCT03570060.
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Affiliation(s)
| | - Lucie Garnier
- Dijon Stroke Registry, Department of Neurology, University Hospital Centre Dijon, Dijon, France
| | - Gauthier Duloquin
- Dijon Stroke Registry, Department of Neurology, University Hospital Centre Dijon, Dijon, France
| | | | | | - Mathilde Graber
- Dijon Stroke Registry, Department of Neurology, University Hospital Centre Dijon, Dijon, France
| | | | - Karim Benali
- Cardiology, CHU Saint Etienne, Saint Etienne, France
| | - Thibaut Pommier
- Cardiology, CHU Dijon Bourgogne, Dijon, France
- PEC 2, Université de Bourgogne, Dijon, France
| | - Gabriel Laurent
- Cardiology, CHU Dijon Bourgogne, Dijon, France
- PEC 2, Université de Bourgogne, Dijon, France
| | | | - Yannick Bejot
- Dijon Stroke Registry, Department of Neurology, University Hospital Centre Dijon, Dijon, France
- PEC 2, Université de Bourgogne, Dijon, France
| | - Charles Guenancia
- Cardiology, CHU Dijon Bourgogne, Dijon, France
- PEC 2, Université de Bourgogne, Dijon, France
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Lee IH, Heo J, Lee H, Jeong J, Kim J, Han M, Yoo J, Kim J, Baik M, Park H, Jung JW, Kim YD, Nam HS. Long-term outcomes of patients with embolic stroke of undetermined source according to subtype. Sci Rep 2024; 14:9295. [PMID: 38653743 DOI: 10.1038/s41598-024-58292-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/27/2024] [Indexed: 04/25/2024] Open
Abstract
The prognosis of patients with embolic stroke of undetermined source (ESUS) may vary according to the underlying cause. Therefore, we aimed to divide ESUS into subtypes and assess the long-term outcomes. Consecutive patients with acute ischemic stroke who underwent a comprehensive workup, including transesophageal echocardiography and prolonged electrocardiography monitoring, were enrolled. We classified ESUS into minor cardioembolic (CE) ESUS, arteriogenic ESUS, two or more causes ESUS, and no cause ESUS. Arteriogenic ESUS was sub-classified into complex aortic plaque (CAP) ESUS and non-stenotic (< 50%) relevant artery plaque (NAP) ESUS. A total of 775 patients were enrolled. During 1286 ± 748 days follow-up, 116 major adverse cardiovascular events (MACE) occurred (4.2 events/100 patient-years). Among the ESUS subtypes, CAP ESUS was associated with the highest MACE frequency (9.7/100 patient-years, p = 0.021). Cox regression analyses showed that CAP ESUS was associated with MACE (hazard ratio 2.466, 95% confidence interval 1.305-4.660) and any stroke recurrence (hazard ratio 2.470, 95% confidence interval, 1.108-5.508). The prognosis of ESUS varies according to the subtype, with CAP ESUS having the worst prognosis. Categorizing ESUS into subtypes could improve patient care and refine clinical trials.
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Affiliation(s)
- Il Hyung Lee
- Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - JoonNyung Heo
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyungwoo Lee
- Department of Neurology, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - JaeWook Jeong
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joonho Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Minho Han
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joonsang Yoo
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Jinkwon Kim
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Minyoul Baik
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Hyungjong Park
- Department of Neurology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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26
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von Falkenhausen AS, Wischmann J, Keidel LM, Kellnar AM, Thaler R, Lackermair K, Estner HL, Höglinger G, Massberg S, Kääb S, Kellert L, Sinner MF. Clinical practice of continuous rhythm monitoring after embolic stroke of undetermined source. PLoS One 2024; 19:e0302404. [PMID: 38630693 PMCID: PMC11023399 DOI: 10.1371/journal.pone.0302404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 04/01/2024] [Indexed: 04/19/2024] Open
Abstract
AIMS Embolic stroke of undetermined source (ESUS) accounts for up to 20% of ischemic strokes annually. Undetected atrial fibrillation (AF) is one important potential underlying cause. For AF, oral anticoagulation has evolved as the most preferable means of secondary stroke prevention. To detect unrecognized paroxysmal AF, long-term ECG monitoring is required, and implantable cardiac monitors (ICM) appear most suitable. Yet, ICMs are particularly costly, implantation is invasive, and remote monitoring places a personnel burden on health care providers. Here, we use data from a large cohort of ESUS patients to systematically analyze the effort of ICM remote monitoring for AF diagnosis and the strain on health care providers. METHODS AND RESULTS From a prospective, single-center, observational ESUS registry, we analyzed all ICM-equipped patients post-ESUS (n = 172) between January 1st, 2018, and December 31st, 2019. Through January 2nd, 2023, 48 patients (27.9%) were diagnosed with AF by ICM remote monitoring. During follow-up, a total of 29,180 remote monitoring episodes were transmitted, of which 17,742 were alarms for AF. A systematic estimation of workload revealed that on average, 20.3 trained physician workhours are required to diagnose one patient with AF. CONCLUSION ICM remote monitoring is useful to diagnose AF in cohort of post-ESUS patients. However, the number of ICM alarms is high, even in a cohort at known high risk of AF and in whom AF detection is therapeutically consequential. Improved automated event classification, clear recommendations for ICM interrogation after AF diagnosis, and a careful patient selection for ICM monitoring are warranted.
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Affiliation(s)
- Aenne Solvejg von Falkenhausen
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Munich, Germany
| | - Johannes Wischmann
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Linus M. Keidel
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Antonia M. Kellnar
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Raffael Thaler
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
| | | | - Heidi L. Estner
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Günter Höglinger
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Steffen Massberg
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Munich, Germany
| | - Stefan Kääb
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Munich, Germany
| | - Lars Kellert
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Moritz F. Sinner
- Department of Medicine I, LMU University Hospital, LMU Munich, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site: Munich Heart Alliance, Munich, Germany
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27
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Shimada Y, Todo K, Doijiri R, Yamazaki H, Sonoda K, Koge J, Iwata T, Ueno Y, Yamagami H, Kimura N, Morimoto M, Kondo D, Koga M, Nagata E, Miyamoto N, Kimura Y, Gon Y, Okazaki S, Sasaki T, Mochizuki H. Higher Frequency of Premature Atrial Contractions Correlates With Atrial Fibrillation Detection after Cryptogenic Stroke. Stroke 2024; 55:946-953. [PMID: 38436115 DOI: 10.1161/strokeaha.123.044813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Covert atrial fibrillation (AF) is a major cause of cryptogenic stroke. This study investigated whether a dose-dependent relationship exists between the frequency of premature atrial contractions (PACs) and AF detection in patients with cryptogenic stroke using an insertable cardiac monitor (ICM). METHODS We enrolled consecutive patients with cryptogenic stroke who underwent ICM implantation between October 2016 and September 2020 at 8 stroke centers in Japan. Patients were divided into 3 groups according to the PAC count on 24-hour Holter ECG: ≤200 (group L), >200 to ≤500 (group M), and >500 (group H). We defined a high AF burden as above the median of the cumulative duration of AF episodes during the entire monitoring period. We evaluated the association of the frequency of PACs with AF detection using log-rank trend test and Cox proportional hazard model and with high AF burden using logistic regression model, adjusting for age, sex, CHADS2 score. RESULTS Of 417 patients, we analyzed 381 patients with Holter ECG and ICM data. The median age was 70 (interquartile range, 59.5-76.5), 246 patients (65%) were males, and the median duration of ICM recording was 605 days (interquartile range, 397-827 days). The rate of new AF detected by ICM was higher in groups with more frequent PAC (15.5%/y in group L [n=277] versus 44.0%/y in group M [n=42] versus 71.4%/y in group H [n=62]; log-rank trend P<0.01). Compared with group L, the adjusted hazard ratios for AF detection in groups M and H were 2.11 (95% CI, 1.24-3.58) and 3.23 (95% CI, 2.07-5.04), respectively, and the adjusted odds ratio for high AF burden in groups M and H were 2.57 (95% CI, 1.14-5.74) and 4.25 (2.14-8.47), respectively. CONCLUSIONS The frequency of PACs was dose-dependently associated with AF detection in patients with cryptogenic stroke.
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Affiliation(s)
- Yuki Shimada
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
| | - Kenichi Todo
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
| | - Ryosuke Doijiri
- Department of Neurology (R.D.), Iwate Prefectural Central Hospital, Japan
| | - Hidekazu Yamazaki
- Department of Neurology (H.Y.), Yokohama Shintoshi Neurosurgical Hospital, Kanagawa, Japan
| | - Kazutaka Sonoda
- Department of Neurology, Saiseikai Fukuoka General Hospital, Japan (K.S., D.K.)
| | - Junpei Koge
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan (J.K., M.K.)
| | - Tomonori Iwata
- Department of Neurology, Tokai University School of Medicine, Kanagawa, Japan (T.I., E.N.)
| | - Yuji Ueno
- Department of Neurology Juntendo University Faculty of Medicine, Tokyo, Japan (Y.U., N.M.)
| | - Hiroshi Yamagami
- Department of Stroke Neurology, National Hospital Organization Osaka National Hospital, Japan (H.Y., Y.K.)
| | - Naoto Kimura
- Department of Neurosurgery (N.K.), Iwate Prefectural Central Hospital, Japan
| | - Masafumi Morimoto
- Department of Neurosurgery (M.M.), Yokohama Shintoshi Neurosurgical Hospital, Kanagawa, Japan
| | - Daisuke Kondo
- Department of Neurology, Saiseikai Fukuoka General Hospital, Japan (K.S., D.K.)
| | - Masatoshi Koga
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan (J.K., M.K.)
| | - Eiichiro Nagata
- Department of Neurology, Tokai University School of Medicine, Kanagawa, Japan (T.I., E.N.)
| | - Nobukazu Miyamoto
- Department of Neurology Juntendo University Faculty of Medicine, Tokyo, Japan (Y.U., N.M.)
| | - Yoko Kimura
- Department of Stroke Neurology, National Hospital Organization Osaka National Hospital, Japan (H.Y., Y.K.)
| | - Yasufumi Gon
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
| | - Shuhei Okazaki
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
| | - Tsutomu Sasaki
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
| | - Hideki Mochizuki
- Department of Neurology, Osaka University Graduate School of Medicine, Japan (Y.S., K.T., Y.G., S.O., T.S., H.M.)
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28
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Komatsu T, Okumura M, Kida H, Takahashi J, Maku T, Kitagawa T, Sato T, Takatsu H, Sakuta K, Sakai K, Umehara T, Mitsumura H, Oseto H, Iguchi Y. Thin aortic arch plaque is associated with the development of atrial fibrillation for embolic stroke of undetermined source in patients with an insertable cardiac monitor. Int J Cardiol 2024; 399:131769. [PMID: 38211671 DOI: 10.1016/j.ijcard.2024.131769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/11/2023] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
BACKGROUND AND OBJECTIVE This study's objective is to investigate whether mild aortic arch plaque is associated with the development of atrial fibrillation (AF) in stroke patients with embolic stroke of undetermined source (ESUS) during the first year following the implantation of an insertable cardiac monitor (ICM). METHODS The participants in this cross-sectional observational study were consecutive patients with ESUS, even after transesophageal echocardiography. We assessed the relationship between the thickness of the participants' aortic arch plaque and AF detected after ICM implantation. RESULTS Of the 50 consecutive patients with ESUS enrolled in this study, 12 (24%) developed AF. We observed that thicker aortic arch plaque was associated with undetected AF (2.3 mm vs. 1.2 mm, p < 0.001). Aortic arch plaque thickness was independent associated with undetected AF (OR 54.00, 95% CI 2.706-1077.544, p = 0.009). When the cut-off value for aortic arch plaque thickness was 1.8 mm, the sensitivity and specificity were 71.1% and 91.7%, respectively (95% CI = 0.75-0.98, p < 0.001). Also, patients having both aortic arch plaque with a thickness < 1.8 mm and a CHADS2 score ≥ 4 were more likely to have detectable AF than no AF (88% vs. 12%, p < 0.001). CONCLUSION A thinner aortic arch plaque was associated with the development of AF. Patients with mild aortic plaques below 4 mm but ≥1.8 mm in thickness and without other high-risk features are less likely to have paroxysmal AF on ICM, and these plaques may be a possible source of embolism for their strokes.
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Affiliation(s)
- Teppei Komatsu
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan.
| | - Motohiro Okumura
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Hiroyuki Kida
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Junichiro Takahashi
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Takahiro Maku
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Tomomichi Kitagawa
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Takeo Sato
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Hiroki Takatsu
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Kenichi Sakuta
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Kenichiro Sakai
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Tadashi Umehara
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Hidetaka Mitsumura
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
| | - Hirotsuna Oseto
- Department of Cardiology, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Yasuyuki Iguchi
- Department of Neurology, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, Japan
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29
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Ospel JM, Kappelhof M, Ganesh A, Kallmes DF, Brinjikji W, Goyal M. Symptomatic non-stenotic carotid disease: current challenges and opportunities for diagnosis and treatment. J Neurointerv Surg 2024; 16:418-424. [PMID: 37068939 DOI: 10.1136/jnis-2022-020005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/02/2023] [Indexed: 04/19/2023]
Abstract
Symptomatic non-stenotic carotid plaques (SyNC) are an under-researched and under-recognized source of stroke. Various imaging markers of non-stenotic carotid plaques that are associated with stroke risk have been identified, but these causal relationships need to be confirmed in additional prospective studies. Currently, there exists neither a standardized SyNC definition nor a dedicated set of imaging protocols, although researchers have started to address these shortcomings. Moreover, many neuroradiologists are still unaware of the condition, and hence do not comment on high-risk plaque features other than stenosis in their reports. Regarding SyNC treatment, scant data exist as to whether and to what extent medical, interventional and surgical treatments could influence the course of the disease; the relative lack of data on the 'natural' history of untreated SyNC makes treatment comparisons difficult. In our opinion, endovascular SyNC treatment represents the most promising treatment option for SyNC, since it allows for targeted elimination of the embolic source, with few systemic side effects and without the need for general anesthesia. However, currently available carotid devices are designed to treat stenotic lesions, and thus are not optimally designed for SyNC. Developing a device specifically tailored to SyNC could be an important step towards establishing endovascular SyNC treatment in clinical practice. In this review, we provide an overview of the current state of evidence with regard to epidemiological, clinical and imaging features of SyNC, propose a SyNC definition based on imaging and clinical features, and outline a possible pathway towards evidence-based SyNC therapies, with a special focus on endovascular SyNC treatment.
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Affiliation(s)
- Johanna Maria Ospel
- Departments of Diagnostic Imaging and Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Manon Kappelhof
- Radiology and Nuclear Medicine, Amsterdam UMC Location AMC, Amsterdam, Noord-Holland, The Netherlands
| | - Aravind Ganesh
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | | | | | - Mayank Goyal
- Diagnostic Imaging, University of Calgary, Calgary, Alberta, Canada
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30
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Rossi R, Jabrah D, Douglas A, Prendergast J, Pandit A, Gilvarry M, McCarthy R, Redfors P, Nordanstig A, Tatlisumak T, Ceder E, Dunker D, Carlqvist J, Szikora I, Tsivgoulis G, Psychogios K, Thornton J, Rentzos A, Jood K, Juega J, Doyle KM. Investigating the Role of Brain Natriuretic Peptide (BNP) and N-Terminal-proBNP in Thrombosis and Acute Ischemic Stroke Etiology. Int J Mol Sci 2024; 25:2999. [PMID: 38474245 DOI: 10.3390/ijms25052999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
The need for biomarkers for acute ischemic stroke (AIS) to understand the mechanisms implicated in pathological clot formation is critical. The levels of the brain natriuretic peptides known as brain natriuretic peptide (BNP) and NT-proBNP have been shown to be increased in patients suffering from heart failure and other heart conditions. We measured their expression in AIS clots of cardioembolic (CE) and large artery atherosclerosis (LAA) etiology, evaluating their location inside the clots, aiming to uncover their possible role in thrombosis. We analyzed 80 thrombi from 80 AIS patients in the RESTORE registry of AIS clots, 40 of which were of CE and 40 of LAA etiology. The localization of BNP and NT-BNP, quantified using immunohistochemistry and immunofluorescence, in AIS-associated white blood cell subtypes was also investigated. We found a statistically significant positive correlation between BNP and NT-proBNP expression levels (Spearman's rho = 0.668 p < 0.0001 *). We did not observe any statistically significant difference between LAA and CE clots in BNP expression (0.66 [0.13-3.54]% vs. 0.53 [0.14-3.07]%, p = 0.923) or in NT-proBNP expression (0.29 [0.11-0.58]% vs. 0.18 [0.05-0.51]%, p = 0.119), although there was a trend of higher NT-proBNP expression in the LAA clots. It was noticeable that BNP was distributed throughout the thrombus and especially within platelet-rich regions. However, NT-proBNP colocalized with neutrophils, macrophages, and T-lymphocytes, suggesting its association with the thrombo-inflammatory process.
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Affiliation(s)
- Rosanna Rossi
- Department of Physiology and Galway Neuroscience Centre, School of Medicine, University of Galway, University Road, H91 TK33 Galway, Ireland
- CÚRAM-SFI Research Centre in Medical Devices, University of Galway, H91 W2TY Galway, Ireland
- Institute of Biotechnology and Biomedicine, Universitat Autonoma de Barcelona (UAB), 08193 Bellaterra, Spain
| | - Duaa Jabrah
- Department of Physiology and Galway Neuroscience Centre, School of Medicine, University of Galway, University Road, H91 TK33 Galway, Ireland
| | - Andrew Douglas
- Department of Physiology and Galway Neuroscience Centre, School of Medicine, University of Galway, University Road, H91 TK33 Galway, Ireland
- CÚRAM-SFI Research Centre in Medical Devices, University of Galway, H91 W2TY Galway, Ireland
| | - James Prendergast
- Department of Physiology and Galway Neuroscience Centre, School of Medicine, University of Galway, University Road, H91 TK33 Galway, Ireland
| | - Abhay Pandit
- CÚRAM-SFI Research Centre in Medical Devices, University of Galway, H91 W2TY Galway, Ireland
| | - Michael Gilvarry
- Cerenovus, Block 3, Corporate House, Ballybrit Business Park, H91 K5YD Galway, Ireland
| | - Ray McCarthy
- Cerenovus, Block 3, Corporate House, Ballybrit Business Park, H91 K5YD Galway, Ireland
| | - Petra Redfors
- Department of Neurology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, 41345 Gothenburg, Sweden
| | - Annika Nordanstig
- Department of Neurology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, 41345 Gothenburg, Sweden
| | - Turgut Tatlisumak
- Department of Neurology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, 41345 Gothenburg, Sweden
| | - Erik Ceder
- Department of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Dennis Dunker
- Department of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Jeanette Carlqvist
- Department of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - István Szikora
- Department of Neurointerventions, National Institute of Clinical Neurosciences, 1145 Budapest, Hungary
| | - Georgios Tsivgoulis
- Second Department of Neurology, "Attikon" University Hospital, National & Kapodistrian University of Athens, 157 72 Athens, Greece
| | | | - John Thornton
- Department of Radiology, Beaumont Hospital, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - Alexandros Rentzos
- Department of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Katarina Jood
- Department of Neurology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, 41345 Gothenburg, Sweden
| | - Jesus Juega
- Neurology Department, Val d'Hebron Hospital, 08035 Barcelona, Spain
| | - Karen M Doyle
- Department of Physiology and Galway Neuroscience Centre, School of Medicine, University of Galway, University Road, H91 TK33 Galway, Ireland
- CÚRAM-SFI Research Centre in Medical Devices, University of Galway, H91 W2TY Galway, Ireland
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31
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Khenkina N, Aimo A, Fabiani I, Masci PG, Sagris D, Williams SE, Mavraganis G, Chen HS, Wintermark M, Michel P, Ntaios G, Georgiopoulos G. Magnetic resonance imaging for diagnostic workup of embolic stroke of undetermined source: A systematic review. Int J Stroke 2024; 19:293-304. [PMID: 37435743 DOI: 10.1177/17474930231189946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
BACKGROUND Embolic stroke of undetermined source (ESUS) refers to ischemic stroke where the underlying cause of thromboembolism cannot be found despite the recommended diagnostic workup. Unidentified source of emboli hinders clinical decision-making and patient management with detrimental consequences on long-term prognosis. The rapid development and versatility of magnetic resonance imaging (MRI) make it an appealing addition to the diagnostic routine of patients with ESUS for the assessment of potential vascular and cardiac embolic sources. AIMS To review the use of MRI in the identification of cardiac and vascular embolic sources in ESUS and to assess the reclassification value of MRI examinations added to the conventional workup of ESUS. SUMMARY OF REVIEW We reviewed the use of cardiac and vascular MRI for the identification of a variety of embolic sources associated with ESUS, including atrial cardiomyopathy, left ventricular pathologies, and supracervical atherosclerosis in carotid and intracranial arteries and in distal thoracic aorta. The additional reclassification after MRI examinations added to the workup of patients with ESUS ranged from 6.1% to 82.3% and varied depending on the combination of imaging modalities. CONCLUSION MRI techniques allow us to identify additional cardiac and vascular embolic sources and may further decrease the prevalence of patients with the diagnosis of ESUS.
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Affiliation(s)
- Natallia Khenkina
- Postgraduate School of Diagnostic and Interventional Radiology, University of Milan, Milan, Italy
| | - Alberto Aimo
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Iacopo Fabiani
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Pier Giorgio Masci
- School of Biomedical Engineering & Imaging Sciences, King's College London, London, UK
| | - Dimitrios Sagris
- Liverpool Centre of Cardiovascular Sciences, University of Liverpool, Liverpool, UK
| | | | - George Mavraganis
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - Hui-Sheng Chen
- Department of Neurology, General Hospital of Northern Theater Command, Shenyang, China
| | - Max Wintermark
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Patrik Michel
- Stroke Center, Neurology Service, Department of Clinical Neurosciences, Lausanne University Hospital, Lausanne, Switzerland
| | - George Ntaios
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Georgios Georgiopoulos
- School of Biomedical Engineering & Imaging Sciences, King's College London, London, UK
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
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32
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Zhao Y, Ning Y, Lei L, Liu Q, Li M, Lei X, Chen W, Hu Y, Xie T, Luan J, Yang H, Luo G. The relationship between atrial cardiopathy biomarkers and prognosis of patients with acute ischemic stroke after endovascular treatment. Neurotherapeutics 2024; 21:e00327. [PMID: 38320384 PMCID: PMC10963924 DOI: 10.1016/j.neurot.2024.e00327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/08/2024] Open
Abstract
Thromboembolism is a possible consequence of underlying atrial cardiopathy, which can occur even before the onset of atrial fibrillation. Our objective was to examine the association between biomarkers of atrial cardiopathy and outcomes of acute ischemic stroke (AIS) following endovascular treatment (EVT). We conducted a retrospective study that collected data from patients with AIS who underwent EVT and compared the outcomes between those with and without atrial cardiopathy. Neurological function was assessed using the modified Rankin Scale (mRS), with an mRS score >2 indicating poor function at day 90. Additionally, we evaluated secondary consequences, including symptomatic intracerebral hemorrhage (sICH), early neurological deterioration (END), and malignant cerebral edema (MCE). Our study included 87 patients (77.6 % male; mean age 60.93 ± 12.47 years). Among these patients, 29 (33.3 %) had atrial cardiopathy, while the remaining 58 (66.7 %) did not. In the atrial cardiopathy group, 12 patients (41.4 %) had poor functional outcomes (mRS>2), compared to 19 (32.8 %) in the non-atrial cardiopathy group. We observed sICH in 22 (25.3 %) patients, END in 14 (16.1 %) patients, MCE in 11 (12.6 %) patients, and two (2.3 %) patients who died in the hospital. We found that patients with PTFV1>5000 μV/ms (OR: 8.39, 95 % CI: 1.43-105.95, P = 0.02) and NT-proBNP>250 pg/mL (OR: 5.09, 95 % CI: 1.20-27.63, P = 0.03) had significantly higher risk of END. After adjusting for covariates in the Firth logistic regression, we further found that atrial cardiopathy was significantly associated with END, as revealed by both univariate (OR: 6.31, 95 % CI: 1.42-59.87, P = 0.01) and multivariable firth regression models (Modle 1, OR: 7.10, 95 % CI: 1.57-67.38, P < 0.01; Modle 2, OR: 7.82, 95 % CI: 1.69, 76.36, P < 0.01; Modle 3, OR: 8.59, 95 % CI: 1.72-91.70, P < 0.01). Moreover, we observed that atrial cardiopathy was associated with an increased risk of END in AIS patients with large artery atherosclerosis (LAA) receiving EVT. Therefore, clinicians should consider atrial cardiopathy as a possible underlying cause of AIS in their patients. Further investigation is warranted to elucidate the relationship between atrial cardiopathy and AIS's occurrence, progression, and prognosis.
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Affiliation(s)
- Yixin Zhao
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China; Department of Neurology, Huashan Hospital, Fudan University, Shanghai, 200235, China
| | - Yuye Ning
- Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Lei Lei
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Qin Liu
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Mengmeng Li
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Xiangyu Lei
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Wanying Chen
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Yiting Hu
- Pavlov First Saint Petersburg State Medical University, L'va Tolstogo Str. 6-8, Saint Petersburg, 197022, Russia
| | - Ting Xie
- Stroke Centre and Department of Neurology, Hancheng People's Hospital of Shaanxi Province, Ziyun Dajie, and Huanghe Dajie, Hancheng, 715400, China
| | - Jiaxin Luan
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Haoyu Yang
- Pharmacy Department, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China
| | - Guogang Luo
- Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China.
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Kotadia ID, O'Dowling R, Aboagye A, Crawley RJ, Bodagh N, Gharaviri A, O'Hare D, Solis‐Lemus JA, Roney CH, Sim I, Ramsey D, Newby D, Chiribiri A, Plein S, Sztriha L, Scott P, Masci P, Harrison J, Williams MC, Birns J, Somerville P, Bhalla A, Niederer S, O'Neill M, Williams SE. High Prevalence of New Clinically Significant Findings in Patients With Embolic Stroke of Unknown Source Evaluated by Cardiac Magnetic Resonance Imaging. J Am Heart Assoc 2024; 13:e031489. [PMID: 38240222 PMCID: PMC11056130 DOI: 10.1161/jaha.123.031489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/05/2023] [Indexed: 02/07/2024]
Abstract
BACKGROUND Embolic stroke of unknown source (ESUS) accounts for 1 in 6 ischemic strokes. Current guidelines do not recommend routine cardiac magnetic resonance (CMR) imaging in ESUS, and beyond the identification of cardioembolic sources, there are no data assessing new clinical findings from CMR in ESUS. This study aimed to assess the prevalence of new cardiac and noncardiac findings and to determine their impact on clinical care in patients with ESUS. METHODS AND RESULTS In this prospective, multicenter, observational study, CMR imaging was performed within 3 months of ESUS. All scans were reported according to standard clinical practice. A new clinical finding was defined as one not previously identified through prior clinical evaluation. A clinically significant finding was defined as one resulting in further investigation, follow-up, or treatment. A change in patient care was defined as initiation of medical, interventional, surgical, or palliative care. From 102 patients recruited, 96 underwent CMR imaging. One or more new clinical findings were observed in 59 patients (61%). New findings were clinically significant in 48 (81%) of these patients. Of 40 patients with a new clinically significant cardiac finding, 21 (53%) experienced a change in care (medical therapy, n=15; interventional/surgical procedure, n=6). In 12 patients with a new clinically significant extracardiac finding, 6 (50%) experienced a change in care (medical therapy, n=4; palliative care, n=2). CONCLUSIONS CMR imaging identifies new clinically significant cardiac and noncardiac findings in half of patients with recent ESUS. Advanced cardiovascular screening should be considered in patients with ESUS. REGISTRATION URL: https://www.clinicaltrials.gov; Unique identifier: NCT04555538.
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Affiliation(s)
- Irum D. Kotadia
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Robert O'Dowling
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Akosua Aboagye
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Richard J. Crawley
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Neil Bodagh
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Ali Gharaviri
- Centre for Cardiovascular Science, The University of EdinburghEdinburghUnited Kingdom
| | - Daniel O'Hare
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Jose Alonso Solis‐Lemus
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Caroline H. Roney
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Iain Sim
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | | | - David Newby
- Centre for Cardiovascular Science, The University of EdinburghEdinburghUnited Kingdom
| | - Amedeo Chiribiri
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Sven Plein
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | | | - Paul Scott
- King’s College HospitalLondonUnited Kingdom
| | - Pier‐Giorgio Masci
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | | | - Michelle C. Williams
- Centre for Cardiovascular Science, The University of EdinburghEdinburghUnited Kingdom
| | - Jonathan Birns
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Peter Somerville
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Ajay Bhalla
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Steven Niederer
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
| | - Mark O'Neill
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
- Guy’s and St Thomas’ National Health Service Foundation TrustLondonUnited Kingdom
| | - Steven E. Williams
- School of Biomedical Engineering and Imaging Sciences, King’s College LondonLondonUnited Kingdom
- Centre for Cardiovascular Science, The University of EdinburghEdinburghUnited Kingdom
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34
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Todo K, Okazaki S, Doijiri R, Yamazaki H, Sonoda K, Koge J, Iwata T, Ueno Y, Yamagami H, Kimura N, Morimoto M, Kondo D, Koga M, Nagata E, Miyamoto N, Kimura Y, Gon Y, Sasaki T, Mochizuki H. Atrial Fibrillation Detection and Ischemic Stroke Recurrence in Cryptogenic Stroke: A Retrospective, Multicenter, Observational Study. J Am Heart Assoc 2024; 13:e031508. [PMID: 38240210 PMCID: PMC11056161 DOI: 10.1161/jaha.123.031508] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/27/2023] [Indexed: 01/23/2024]
Abstract
BACKGROUND Atrial fibrillation (AF) is known to be a strong risk factor for stroke. However, the risk of stroke recurrence in patients with cryptogenic stroke with AF detected after stroke by an insertable cardiac monitor (ICM) is not well known. We sought to evaluate the risk of ischemic stroke recurrence in patients with cryptogenic stroke with and without ICM-detected AF. METHODS AND RESULTS We retrospectively reviewed patients with cryptogenic stroke who underwent ICM implantation at 8 stroke centers in Japan. Cox regression models were developed using landmark analysis and time-dependent analysis. We set the target sample size at 300 patients based on our estimate of the annualized incidence of ischemic stroke recurrence to be 3% in patients without AF detection and 9% in patients with AF detection. Of the 370 patients, 121 were found to have AF, and 110 received anticoagulation therapy after AF detection. The incidence of ischemic stroke recurrence was 4.0% in 249 patients without AF detection and 5.8% in 121 patients with AF detection (P=0.45). In a landmark analysis, the risk of ischemic stroke recurrence was not higher in patients with AF detected ≤90 days than in those without (hazard ratio, 1.47 [95% CI, 0.41-5.28]). In a time-dependent analysis, the risk of ischemic stroke recurrence did not increase after AF detection (hazard ratio, 1.77 [95% CI, 0.70-4.47]). CONCLUSIONS The risk of ischemic stroke recurrence in patients with cryptogenic stroke with ICM-detected AF, 90% of whom were subsequently anticoagulated, was not higher than in those without ICM-detected AF.
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Affiliation(s)
- Kenichi Todo
- Department of NeurologyOsaka University Graduate School of MedicineOsakaJapan
| | - Shuhei Okazaki
- Department of NeurologyOsaka University Graduate School of MedicineOsakaJapan
| | - Ryosuke Doijiri
- Department of NeurologyIwate Prefectural Central HospitalIwateJapan
| | - Hidekazu Yamazaki
- Department of NeurologyYokohama Shintoshi Neurosurgical HospitalYokohamaKanagawaJapan
| | - Kazutaka Sonoda
- Department of NeurologySaiseikai Fukuoka General HospitalFukuokaJapan
| | - Junpei Koge
- Department of Cerebrovascular MedicineNational Cerebral and Cardiovascular CenterOsakaJapan
| | - Tomonori Iwata
- Department of NeurologyTokai UniversityHiratsukaKanagawaJapan
| | - Yuji Ueno
- Department of NeurologyJuntendo University Faculty of MedicineTokyoJapan
| | - Hiroshi Yamagami
- Department of Stroke NeurologyNational Hospital Organization Osaka National HospitalOsakaJapan
| | - Naoto Kimura
- Department of NeurosurgeryIwate Prefectural Central HospitalIwateJapan
| | - Masafumi Morimoto
- Department of NeurosurgeryYokohama Shintoshi Neurosurgical HospitalYokohamaKanagawaJapan
| | - Daisuke Kondo
- Department of NeurologySaiseikai Fukuoka General HospitalFukuokaJapan
| | - Masatoshi Koga
- Department of Cerebrovascular MedicineNational Cerebral and Cardiovascular CenterOsakaJapan
| | - Eiichiro Nagata
- Department of NeurologyTokai UniversityHiratsukaKanagawaJapan
| | - Nobukazu Miyamoto
- Department of NeurologyJuntendo University Faculty of MedicineTokyoJapan
| | - Yoko Kimura
- Department of Stroke NeurologyNational Hospital Organization Osaka National HospitalOsakaJapan
| | - Yasufumi Gon
- Department of NeurologyOsaka University Graduate School of MedicineOsakaJapan
| | - Tsutomu Sasaki
- Department of NeurologyOsaka University Graduate School of MedicineOsakaJapan
| | - Hideki Mochizuki
- Department of NeurologyOsaka University Graduate School of MedicineOsakaJapan
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35
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Lee P, Dhillon G, Pourafkari M, DaBreo D, Jaff Z, Appireddy R, Jin A, Boissé Lomax L, Durafourt BA, Boyd JG, Nasirzadeh AR, Tampieri D, Jalini S. Non-ECG-gated cardiac CT angiography in acute stroke is feasible and detects sources of embolism. Int J Stroke 2024; 19:189-198. [PMID: 37515467 PMCID: PMC10811964 DOI: 10.1177/17474930231193335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND A significant portion of cryptogenic stroke is hypothesized to be secondary to cardiac embolism. However, transthoracic echocardiogram is usually delayed after stroke, and more detailed cardiac imaging is not routinely done. AIMS This study aimed to determine whether non-ECG-gated cardiac CT angiography (cCTA) during hyperacute stroke would provide diagnostic quality images and act as an adjunct modality of cardiac imaging to detect sources of emboli. METHODS In this single-center prospective cohort study, modified Code Stroke imaging was implemented with a 64-slice CT scanner, where the longitudinal axis of CT angiography was extended from the carina to the diaphragm. The primary outcomes of image quality, recruitment feasibility, impact on hyperacute time metrics, and additional radiation dose were assessed. Secondary outcomes consisted of detection of high-risk cardiac sources of embolism, mediastinal or lung pathology, and impact on etiologic classification. RESULTS One hundred and twenty eligible patients were enrolled, of which 105 (87.5%) had good/moderate quality images for motion artifact and 119 (99.2%) for contrast opacification. Total CT time, door-to-needle time, and door-to-groin puncture time were unchanged with the addition of cCTA. Eighty-nine patients received a final diagnosis of ischemic stroke, of which 12/89 (13.5%) had high-risk cardioembolic findings on cCTA. Incidental findings, such as pulmonary embolism (PE) (7/89, 7.9%) and malignancy (6/89, 6.7%), were observed. cCTA led to changes in management for 19/120 (15.8%) of all patients, and reclassification of stroke etiology for 8/89 (9%) of patients. CONCLUSIONS Non-ECG-gated cCTA can be feasibly incorporated into Code Stroke and provide diagnostic quality images without delays in hyperacute time metrics. It can detect high-risk cardiac sources, and other findings impacting patient care. This may help reclassify a subset of cryptogenic stroke cases and improve secondary prevention.
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Affiliation(s)
- Peter Lee
- School of Medicine, Queen’s University, Kingston, ON, Canada
| | - Gurmohan Dhillon
- Department of Radiology, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Marina Pourafkari
- Department of Radiology, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Dominique DaBreo
- Department of Radiology, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Zardasht Jaff
- Division of Cardiology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Ramana Appireddy
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Albert Jin
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Lysa Boissé Lomax
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Bryce A Durafourt
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - John Gordon Boyd
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Amir Reza Nasirzadeh
- Department of Radiology, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Donatella Tampieri
- Department of Radiology, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
| | - Shirin Jalini
- Division of Neurology, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON, Canada
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36
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Iov DE, Floria M, Tanase DM. Patent foramen oval and ESUS in cryptogenic stroke: Still a complex puzzle. Echocardiography 2024; 41:e15778. [PMID: 38353336 DOI: 10.1111/echo.15778] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024] Open
Affiliation(s)
- Diana-Elena Iov
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T. Popa,", Iasi, Romania
- Emergency Clinical Hospital "Saint Spiridon,", Institute of Gastroenterology and Hepatology, Iasi, Romania
| | - Mariana Floria
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T. Popa,", Iasi, Romania
- Emergency Clinical Hospital "Saint Spiridon,", Internal Medicine Clinic, Iasi, Romania
| | - Daniela Maria Tanase
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T. Popa,", Iasi, Romania
- Emergency Clinical Hospital "Saint Spiridon,", Internal Medicine Clinic, Iasi, Romania
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37
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Grygorowicz C, Benali K, Serzian G, Mouhat B, Duloquin G, Pommier T, Didier R, Laurent G, Béjot Y, Maille B, Vuillier F, Badoz M, Guenancia C. Value of HAVOC and Brown ESUS-AF scores for atrial fibrillation on implantable cardiac monitors after embolic stroke of undetermined source. J Stroke Cerebrovasc Dis 2024; 33:107451. [PMID: 37995501 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/13/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVES Up to 20 % of ischemic strokes are associated with overt atrial fibrillation (AF). Furthermore, silent AF was detected by an implantable cardiac monitor (ICM) in 1 in 3 cryptogenic strokes in the CRYSTAL AF study. An ESC position paper has suggested a HAVOC score ≥ 4 or a Brown ESUS-AF score ≥ 2 as criteria for ICM implantation after cryptogenic stroke, but neither of these criteria has been developed or validated in ICM populations. We assessed the performance of HAVOC and Brown ESUS-AF scores in a cohort of ICM patients implanted after embolic stroke of undetermined source (ESUS). METHODS All patients implanted with an ICM for ESUS between February 2016 and February 2022 at two French University Hospitals were retrospectively included. Demographic data, cardiovascular risk factors, and clinical and biological data were collected after a review of electronic medical records. HAVOC and Brown ESUS-AF scores were calculated for all patients. FINDINGS Among the 384 patients included, 106 (27 %) developed AF during a mean follow-up of 33 months. The scores performances for predicting AF during follow-up were: HAVOC= AUC: 68.5 %, C-Index: 0.662, and Brown ESUS-AF=AUC: 72.9 %, C-index 0.712. Compared with the CHA2DS2-VASc score, only the Brown ESUS-AF score showed significant improvement in NRI/IDI. Furthermore, classifying patients according to the suggested HAVOC and Brown ESUS-AF thresholds, only 24 % and 31 % of the cohort, respectively, would have received an ICM, and 58 (55 %) and 47 (44 %) of the AF patients, respectively, would not have been implanted with an ICM. CONCLUSION HAVOC and Brown ESUS-AF scores showed close and moderate performance in predicting AF on ICM after cryptogenic stroke, with a significant lack of sensitivity. Specific risk scores should be developed and validated in large ICM cohorts.
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Affiliation(s)
| | - Karim Benali
- Cardiology Department, University Hospital, Saint-Etienne, France
| | | | - Basile Mouhat
- Cardiology Department, University Hospital, Besançon, France
| | - Gauthier Duloquin
- PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France; Neurology Department, University Hospital, Dijon, France
| | - Thibaut Pommier
- Cardiology Department, University Hospital, Dijon, France; PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France
| | - Romain Didier
- Cardiology Department, University Hospital, Dijon, France; PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France
| | - Gabriel Laurent
- Cardiology Department, University Hospital, Dijon, France; PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France
| | - Yannick Béjot
- PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France; Neurology Department, University Hospital, Dijon, France
| | - Baptiste Maille
- Cardiology Department, University Hospital, Marseille, France
| | | | - Marc Badoz
- Cardiology Department, University Hospital, Besançon, France
| | - Charles Guenancia
- Cardiology Department, University Hospital, Dijon, France; PEC2 EA7460, University of Burgundy and Franche-Comté, Dijon, France.
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38
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Bashir Z, Chen EW, Wang S, Shu L, Goldstein ED, Rana M, Kala N, Dai X, Mandel D, Has P, Xie M, Wang T, Dickey JB, Poppas A, Simmons J, Song C, Yaghi S, Haines P. Left atrial strain, embolic stroke of undetermined source, and atrial fibrillation detection. Echocardiography 2024; 41:e15738. [PMID: 38284672 DOI: 10.1111/echo.15738] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Atrial cardiopathy is a proposed mechanism of embolic stroke of undetermined source (ESUS). Left atrial (LA) strain may identify early atrial cardiopathy prior to structural changes. We aim to study the associations between LA strain, ESUS, and atrial fibrillation (AF) detection in ESUS. METHODS The study population included patients with ESUS and noncardioembolic (NCE) stroke presenting to the Rhode Island Hospital Stroke Center between January 2016 and June 2017 who underwent transthoracic echocardiography. Speckle tracking echocardiography (STE) was used to measure the three phases of LA strain (reservoir, conduit, and contractile). Binary logistic regression analysis was performed to determine the associations between LA strain and stroke subtype (ESUS vs. NCE) as well as follow-up detection of AF in ESUS patients. RESULTS We identified 656 patients, 307 with ESUS and 349 with NCE. In binary logistic regression, the lowest tertiles of LA reservoir (adjusted OR 1.944, 95% CI 1.266-2.986, p = .002), contractile (aOR 1.568, 95% CI 1.035-2.374, p = .034), and conduit strain (aOR 2.288, 95% CI 1.448-3.613, p = .001) were more likely to be significantly associated with ESUS compared to NCE stroke. Among all ESUS patients, the lowest tertiles of LA reservoir strain (OR 2.534, 95% CI 1.029-6.236, p = .043), contractile strain (OR 2.828, 95% CI 1.158-6.903, p = .022), and conduit strain (OR 2.614, 95% CI 1.003-6.815, p = .049) were significantly associated with subsequent detection of AF. CONCLUSION Reduced LA strain is associated with ESUS occurrence and AF detection in ESUS patients. Therefore, quantification of LA strain in ESUS patients may improve risk stratification and guide secondary prevention strategies.
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Affiliation(s)
- Zubair Bashir
- Department of Cardiology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Edward W Chen
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Shuyuan Wang
- Department of Ultrasound, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liqi Shu
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Eric D Goldstein
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Maheen Rana
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Narendra Kala
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Xing Dai
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Daniel Mandel
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Phinnara Has
- Lifespan Biostatistics, Epidemiology and Research Design, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Mingxing Xie
- Department of Ultrasound, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Wang
- Stanford Cardiovascular Institute, Stanford University, Palo Alto, California, USA
| | - John B Dickey
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcestor, Massachusetts, USA
| | - Athena Poppas
- Department of Cardiology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - James Simmons
- Department of Pulmonary, Critical Care, and Sleep Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Christopher Song
- Department of Cardiology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Shadi Yaghi
- Department of Neurology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Philip Haines
- Department of Cardiology, Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Elsheikh S, Hill A, Irving G, Lip GYH, Abdul-Rahim AH. Atrial fibrillation and stroke: State-of-the-art and future directions. Curr Probl Cardiol 2024; 49:102181. [PMID: 37913929 DOI: 10.1016/j.cpcardiol.2023.102181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 10/28/2023] [Indexed: 11/03/2023]
Abstract
Atrial fibrillation (AF) and stroke remain a major cause of morbidity and mortality. The two conditions shared common co-morbidities and risk factors. AF-related strokes are associated with worse clinical outcomes and higher mortality compared to non-AF-related. Early detection of AF is vital for prevention. While various scores have been developed to predict AF in such a high-risk group, they are yet to incorporated into clinical guidelines. Novel markers and predictors of AF including coronary and intracranial arterial calcification have also been studied. There are also ongoing debates on the management of acute stroke in patients with AF, and those who experienced breakthrough stroke while on oral anticoagulants. We provided an overview of the complex interplay between AF and stroke, as well as the treatment and secondary prevention of stroke in AF. We also comprehensively discussed the current evidence and the ongoing conundrums, and highlighted the future directions on the topic.
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Affiliation(s)
- Sandra Elsheikh
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK; Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK; Mersey and West Lancashire Teaching Hospitals NHS Trust, St Helens, UK.
| | - Andrew Hill
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK; Mersey and West Lancashire Teaching Hospitals NHS Trust, St Helens, UK
| | - Greg Irving
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK; Health Research Institute, Edge Hill University Faculty of Health and Social Care, Ormskirk, UK
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK; Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK; Danish Centre for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Azmil H Abdul-Rahim
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK; Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK; Mersey and West Lancashire Teaching Hospitals NHS Trust, St Helens, UK
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40
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Vitturi BK, Gagliardi RJ. Effectiveness of statins on outcomes of patients with Embolic Stroke of Undetermined Source (ESUS). J Stroke Cerebrovasc Dis 2024; 33:107469. [PMID: 37944282 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Statins are highly recommended as a secondary prevention strategy after a stroke. Embolic Stroke of Undetermined Source (ESUS) accounts for up to one fifth of cases of ischemic stroke. There is a lack of studies investigating the effectiveness of statins in this subgroup of patients. METHODS We designed a longitudinal cohort study involving patients properly diagnosed with ESUS. Data about statin therapy included information about the time of initiation of the treatment, pre-stroke statin use, statin withdrawal, and the type and dosage of the statin prescribed. Patients were followed for 48 months after the index stroke. The primary endpoints included stroke recurrence, major cardiovascular events, and death from all causes. The secondary endpoint was the functional outcome, assessed in a standardized and systematic way using the modified Rankin Scale (mRS). RESULTS Patients who were not taking any statin after ESUS have significantly increased odds of stroke recurrence (OR = 3.29, 95% CI 1.27 - 8.55) or presenting the composite outcome of stroke recurrence, major cardiovascular events, and death (OR = 3.70, 95% CI 1.44 - 9.50) in the multivariate analysis. No statin therapy was directly associated with the functional outcome as well (OR = 3.32, 95% CI = 1.58 - 6.96). The early initiation of the statin therapy was estimated to reduce the risk of a second stroke and the composite outcome by 89% and 87%. CONCLUSIONS Our pioneering study provides evidence that patients with ESUS may benefit from statin therapy, especially if prescribed early and at higher dosages.
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Affiliation(s)
- Bruno Kusznir Vitturi
- Department of Health Sciences, University of Genoa, Via A. Pastore 1, 16132 Genova (GE), Italy.
| | - Rubens José Gagliardi
- Department of Neurology, Faculty of Medical Sciences of Santa Casa de São Paulo, Dr. Cesário Motta Júnior Street 112, 01221-020, São Paulo, Brazil
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41
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Geisler T, Keller T, Martus P, Poli K, Serna-Higuita LM, Schreieck J, Gawaz M, Tünnerhoff J, Bombach P, Nägele T, Klose U, Aidery P, Groga-Bada P, Kraft A, Hoffmann F, Hobohm C, Naupold K, Niehaus L, Wolf M, Bäzner H, Liman J, Wachter R, Kimmig H, Jung W, Huber R, Feurer R, Lindner A, Althaus K, Bode FJ, Petzold GC, Nguyen TN, Mac Grory B, Schrag M, Purrucker JC, Zuern CS, Ziemann U, Poli S. Apixaban versus Aspirin for Embolic Stroke of Undetermined Source. NEJM EVIDENCE 2024; 3:EVIDoa2300235. [PMID: 38320511 DOI: 10.1056/evidoa2300235] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
BACKGROUND: Rivaroxaban and dabigatran were not superior to aspirin in trials of patients with embolic stroke of undetermined source (ESUS). It is unknown whether apixaban is superior to aspirin in patients with ESUS and known risk factors for cardioembolism. METHODS: We conducted a multicenter, randomized, open-label, blinded-outcome trial of apixaban (5 mg twice daily) compared with aspirin (100 mg once daily) initiated within 28 days after ESUS in patients with at least one predictive factor for atrial fibrillation or a patent foramen ovale. Cardiac monitoring was mandatory, and aspirin treatment was switched to apixaban in case of atrial fibrillation detection. The primary outcome was any new ischemic lesion on brain magnetic resonance imaging (MRI) during 12-month follow-up. Secondary outcomes included major and clinically relevant nonmajor bleeding. RESULTS: A total of 352 patients were randomly assigned to receive apixaban (178 patients) or aspirin (174 patients) at a median of 8 days after ESUS. At 12-month follow-up, MRI follow-up was available in 325 participants (92.3%). New ischemic lesions occurred in 23 of 169 (13.6%) participants in the apixaban group and in 25 of 156 (16.0%) participants in the aspirin group (adjusted odds ratio, 0.79; 95% confidence interval, 0.42 to 1.48; P=0.57). Major and clinically relevant nonmajor bleeding occurred in five and seven participants, respectively (1-year cumulative incidences, 2.9 and 4.2; hazard ratio, 0.68; 95% confidence interval, 0.22 to 2.16). Serious adverse event rates were 43.9 per 100 person-years in those given apixaban and 45.7 per 100 person-years in those given aspirin. The Apixaban for the Treatment of Embolic Stroke of Undetermined Source trial was terminated after a prespecified interim analysis as a result of futility. CONCLUSIONS: Apixaban treatment was not superior to cardiac monitoring-guided aspirin in preventing new ischemic lesions in an enriched ESUS population. (Funded by Bristol-Myers Squibb and Medtronic Europe; ClinicalTrials.gov number, NCT02427126.)
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Affiliation(s)
- Tobias Geisler
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Timea Keller
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Peter Martus
- Institute for Clinical Epidemiology and Applied Biometry, Faculty of Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Khouloud Poli
- Department of Neurology & Stroke, Eberhard Karls University Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Lina Maria Serna-Higuita
- Institute for Clinical Epidemiology and Applied Biometry, Faculty of Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Juergen Schreieck
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Meinrad Gawaz
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Johannes Tünnerhoff
- Department of Neurology & Stroke, Eberhard Karls University Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Paula Bombach
- Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Neurology and Interdisciplinary Neuro-Oncology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Thomas Nägele
- Department of Diagnostic and Interventional Neuroradiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Uwe Klose
- Department of Diagnostic and Interventional Neuroradiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Parwez Aidery
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Patrick Groga-Bada
- Department of Cardiology and Angiology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Andrea Kraft
- Department of Neurology, Krankenhaus Martha-Maria Halle-Doelau, Halle (Saale), Germany
| | - Frank Hoffmann
- Department of Neurology, Krankenhaus Martha-Maria Halle-Doelau, Halle (Saale), Germany
| | - Carsten Hobohm
- Department of Neurology, Carl-von-Basedow Klinikum Merseburg, Merseburg, Germany
| | - Katrin Naupold
- Department of Neurology, Carl-von-Basedow Klinikum Merseburg, Merseburg, Germany
| | - Ludwig Niehaus
- Department of Neurology, Rems-Murr Kliniken, Winnenden, Germany
| | - Marc Wolf
- Department of Neurology, Klinikum Stuttgart, Stuttgart, Germany
| | - Hansjörg Bäzner
- Department of Neurology, Klinikum Stuttgart, Stuttgart, Germany
| | - Jan Liman
- Department of Neurology, Klinikum Nürnberg, Nürnberg, Germany
- Clinic for Neurology, University Hospital Göttingen, Göttingen, Germany
| | - Rolf Wachter
- Department of Cardiology, University Hospital Leipzig, Leipzig, Germany
- Clinic for Cardiology and Pneumology, University Medicine Göttingen, Göttingen, Germany
- German Center for Cardiovascular Research, Göttingen, Germany
| | - Hubert Kimmig
- Department of Neurology, Schwarzwald-Baar Klinikum, Villingen-Schwenningen, Germany
| | - Werner Jung
- Department of Cardiology, Schwarzwald-Baar Klinikum, Villingen-Schwenningen, Germany
| | - Roman Huber
- Department of Neurology, Klinikum Friedrichshafen, Friedrichshafen, Germany
| | - Regina Feurer
- Department of Neurology, Klinikum Friedrichshafen, Friedrichshafen, Germany
| | - Alfred Lindner
- Department of Neurology, Marienhospital Stuttgart, Stuttgart, Germany
| | | | - Felix J Bode
- Division of Vascular Neurology, Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Gabor C Petzold
- Division of Vascular Neurology, Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Thanh N Nguyen
- Department of Radiology, Boston Medical Center, Boston
- Department of Neurology, Boston Medical Center, Boston
| | - Brian Mac Grory
- Duke Clinical Research Institute, Durham, NC
- Department of Neurology, Duke University School of Medicine, Durham, NC
| | - Matthew Schrag
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN
| | - Jan C Purrucker
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - Christine S Zuern
- Department of Neurology, Klinikum Nürnberg, Nürnberg, Germany
- Department of Cardiology, Universitätsspital Basel, Basel, Switzerland
| | - Ulf Ziemann
- Department of Neurology & Stroke, Eberhard Karls University Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Sven Poli
- Department of Neurology & Stroke, Eberhard Karls University Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
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Yetkin E, Atmaca H, Cuglan B, Yalta K. Ignored Role of Paroxysmal Atrial Fibrillation in the Pathophysiology of Cryptogenic Stroke in Patients with Patent Foramen Ovale and Atrial Septal Aneurysm. Curr Cardiol Rev 2024; 20:14-19. [PMID: 38367262 PMCID: PMC11107473 DOI: 10.2174/011573403x267669240125041203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 02/19/2024] Open
Abstract
The association between cryptogenic stroke (CS) and patent foramen ovale (PFO) with or without atrial septal aneurysm (ASA) has been a debate for decades in terms of pathophysiologic processes and clinical courses. This issue has become more interesting and complex, because of the concerns associating the CS with so-called normal variant pathologies of interatrial septum, namely ASA and PFO. While there is an anatomical pathology in the interatrial septum, namely PFO and ASA, the embolic source of stroke is not clearly defined. Moreover, in patients with PFO and CS, the risk of recurrent stroke has also been associated with other PFOunrelated factors, such as hyperlipidemia, body mass index, diabetes mellitus, and hypertension, leading to the difficulty in understanding the pathophysiologic mechanism of CS in patients with PFO and/or ASA. Theoretically, the embolic source of cryptogenic stroke in which PFO and/or ASA has been involved can be categorized into three different anatomical locations, namely PFO tissue and/or ASA tissue itself, right or left atrial chambers, and venous vascular territory distal to the right atrium, i.e., inferior vena cava and lower extremity venous system. However, the possible role of paroxysmal atrial fibrillation associated with PFO and/or ASA as a source of cryptogenic stroke has never been mentioned clearly in the literature. This review aims to explain the association of cryptogenic stroke with PFO and/or ASA in a comprehensive manner, including anatomical, clinical, and mechanistic aspects. The potential role of paroxysmal atrial fibrillation and its contribution to clinical course have been also discussed in a hypothetical manner to elucidate the pathophysiology of CS and support further treatment modalities.
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Affiliation(s)
- Ertan Yetkin
- Division of Cardiology, Türkiye Hospital, Istanbul, Turkey
| | - Hasan Atmaca
- Division of Cardiology, Türkiye Hospital, Istanbul, Turkey
| | - Bilal Cuglan
- Department of Cardiology, Kanuni Sultan Suleiman Training and Research Hospital, Istanbul, Turkey
| | - Kenan Yalta
- Department of Cardiology, Faculty of Medicine Edirne, Trakya University, Trakya, Turkey
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43
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Clark A, Freedman B, Thomas L. Embolic Stroke of Undetermined Source: Urgency for Improved Aetiological Understanding and Patient Treatment. Heart Lung Circ 2024; 33:9-11. [PMID: 38135592 DOI: 10.1016/j.hlc.2023.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023]
Affiliation(s)
- Amy Clark
- Department of Cardiology, Westmead Hospital, Sydney, NSW, Australia; Westmead Clinical School, University of Sydney, Sydney, NSW, Australia. https://twitter.com/AmyClarkPhD
| | - Ben Freedman
- Heart Research Institute, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Liza Thomas
- Department of Cardiology, Westmead Hospital, Sydney, NSW, Australia; Westmead Clinical School, University of Sydney, Sydney, NSW, Australia; South West Clinical School, University of New South Wales, Sydney, NSW, Australia.
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44
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Simaan N, Jubeh T, Shalabi F, Jubran H, Metanis I, Parag Y, Schwartzman Y, Magadlla J, Gomori JM, Beiruti KW, Cohen JE, Leker R. Diagnostic Yield of High-Resolution Vessel Wall Magnetic Resonance Imaging in the Evaluation of Young Stroke Patients. J Clin Med 2023; 13:189. [PMID: 38202196 PMCID: PMC10779627 DOI: 10.3390/jcm13010189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/16/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
(1) Background: The mechanism responsible for stroke in patients younger than 50 often remains unknown. This study was designed to assess whether high-resolution intracranial vessel wall MR imaging (icVWI) may be instrumental in determining stroke cause. (2) Methods: Young stroke patients with and without an identified cause of stroke despite an exhaustive investigation were prospectively included. Patients who underwent icVWI were compared to those who did not. We next compared patients with and without intracranial vulnerable plaques on icVWI. (3) Results: Overall, 47 young stroke patients were identified over the span of 2 years and included in this study. Of those, 20 (42%) underwent intracranial icVWI. Cancer prevalence was higher among patients who did not have an icVWI study (19% vs. 0% p = 0.042) but there were no other significant differences between patients who had an icVWI study and those who did not have an icVWI. Among patients who had an icVWI, 11 (55%) had vulnerable plaques and the remaining nine studies were negative. Patients with positive icVWI scans had significantly higher stroke severity at admission (mean ± SD NIHSS score 5.5 ± 3.5 vs. 1.7 ± 2.3, p = 0.012). Patients with positive icVWI scans were more often treated with antiplatelets upon discharge (100% vs. 67%, p = 0.038). (4) Conclusions: icVWI can add significant information relevant to stroke pathogenesis and secondary prevention among young stroke patients with a negative exhaustive diagnostic workup.
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Affiliation(s)
- Naaem Simaan
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
- Azrieli Faculty of Medicine, Bar Ilan University, Safed 1311502, Israel
- Department of Neurology, Ziv Medical Center, Safed 1311001, Israel;
| | - Tamer Jubeh
- Department of Neurology, Ziv Medical Center, Safed 1311001, Israel;
| | - Fatma Shalabi
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
| | - Hamza Jubran
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
| | - Issa Metanis
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
| | - Yoav Parag
- Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (Y.P.); (J.M.G.)
| | - Yoel Schwartzman
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
| | - Jad Magadlla
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
| | - John. M. Gomori
- Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (Y.P.); (J.M.G.)
| | | | - Jose E. Cohen
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel;
| | - Ronen Leker
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem 9112102, Israel; (N.S.); (F.S.); (H.J.); (I.M.); (Y.S.); (J.M.)
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Zhang K, Loong SSE, Yuen LZH, Venketasubramanian N, Chin HL, Lai PS, Tan BYQ. Genetics in Ischemic Stroke: Current Perspectives and Future Directions. J Cardiovasc Dev Dis 2023; 10:495. [PMID: 38132662 PMCID: PMC10743455 DOI: 10.3390/jcdd10120495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/01/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Ischemic stroke is a heterogeneous condition influenced by a combination of genetic and environmental factors. Recent advancements have explored genetics in relation to various aspects of ischemic stroke, including the alteration of individual stroke occurrence risk, modulation of treatment response, and effectiveness of post-stroke functional recovery. This article aims to review the recent findings from genetic studies related to various clinical and molecular aspects of ischemic stroke. The potential clinical applications of these genetic insights in stratifying stroke risk, guiding personalized therapy, and identifying new therapeutic targets are discussed herein.
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Affiliation(s)
- Ka Zhang
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
| | - Shaun S. E. Loong
- Cardiovascular-Metabolic Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore;
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - Linus Z. H. Yuen
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | | | - Hui-Lin Chin
- Khoo Teck Puat National University Children’s Medical Institute, National University Hospital, Singapore 119074, Singapore;
| | - Poh San Lai
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore;
| | - Benjamin Y. Q. Tan
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
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Roopnarinesingh R, Leppert M, Mukherjee D. Evidence and Mechanisms for Embolic Stroke in Contralateral Hemispheres From Carotid Artery Sources. J Am Heart Assoc 2023; 12:e030792. [PMID: 38014680 PMCID: PMC10727331 DOI: 10.1161/jaha.123.030792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/23/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Disambiguation of embolus pathogenesis in embolic strokes is often a clinical challenge. One common source of embolic stroke is the carotid arteries, with emboli originating due to plaque buildup or perioperatively during revascularization procedures. Although it is commonly thought that thromboemboli from carotid sources travel to cerebral arteries ipsilaterally, there are existing reports of contralateral embolic events that complicate embolus source destination relationship for carotid sources. Here, we hypothesize that emboli from carotid sources can travel to contralateral hemispheres and that embolus interactions with collateral hemodynamics in the circle of Willis influence this process. METHODS AND RESULTS We use a patient-specific computational embolus-hemodynamics interaction model developed in prior works to conduct an in silico experiment spanning 4 patient vascular models, 6 circle of Willis anastomosis variants, and 3 different thromboembolus sizes released from left and right carotid artery sites. This led to a total of 144 different experiments, estimating trajectories and distribution of approximately 1.728 million embolus samples. Across all cases considered, emboli from left and right carotid sources showed nonzero contralateral transport (P value <-0.05). Contralateral movement revealed a size dependence, with smaller emboli traveling more contralaterally. Detailed analysis of embolus dynamics revealed that collateral flow routes in the circle of Willis played a role in routing emboli, and transhemispheric movement occurred through the anterior and posterior communicating arteries in the circle of Willis. CONCLUSIONS We generated quantitative data demonstrating the complex dynamics of finite size thromboembolus particles as they interact with pulsatile arterial hemodynamics and traverse the vascular network of the circle of Willis. This leads to a nonintuitive source-destination relationship for emboli originating from carotid artery sites, and emboli from carotid sources can potentially travel to cerebral arteries on contralateral hemispheres.
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Affiliation(s)
| | - Michelle Leppert
- Department of NeurologyUniversity of Colorado Anschutz Medical CampusAuroraCO
| | - Debanjan Mukherjee
- Paul M Rady Department of Mechanical EngineeringUniversity of Colorado BoulderBolderCO
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Low CE, Teo YN, Teo YH, Lim ICZ, Rana S, Lee YQ, Chen X, Fang JT, Lam HH, Ong K, Yang J, Kuntjoro I, Low TT, Lee EC, Sharma VK, Yeo LL, Sia CH, Tan BY, Lim Y. Propensity-score matched analysis of patent foramen ovale closure in real-world study cohort with cryptogenic ischemic stroke. J Stroke Cerebrovasc Dis 2023; 32:107407. [PMID: 37804781 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/09/2023] Open
Abstract
INTRODUCTION Patent foramen ovale (PFO) occurs in 25% of the general population and in 40% of cryptogenic ischemic stroke patients. Recent trials support PFO closure in selected patients with cryptogenic stroke. We examined the outcomes of transcatheter PFO closure in a real-world study cohort with cryptogenic stroke. METHODS Consecutive ischemic stroke patients who were classified as cryptogenic on the TOAST aetiology and diagnosed with a PFO were included. All patients underwent either transcatheter PFO closure or medical therapy. A 2:1 propensity score matching by sex and Risk-of-Paradoxical-Embolism (RoPE) score was performed. Multivariable regression models adjusted for sex and RoPE score. RESULTS Our cohort comprised 232 patients with mean age 44.3 years (SD 10.8) and median follow-up 1486.5 days. 33.2% were female. PFO closure (n=84) and medical therapy (n=148) groups were well-matched with <10% mean-difference in sex and RoPE score. Two patients in the treated group (2.4%) and seven in the control group (4.7%) had a recurrent ischemic stroke event. Multivariable Cox regression demonstrated a hazard-ratio of 0.26 (95%CI 0.03-2.13, P=0.21) for PFO closure compared to control. The incidence of atrial fibrillation (AF) detected post-PFO closure was similar between the treated and control (1.19% vs 1.35%, multivariable logistic regression odds-ratio 0.90, 95%CI 0.04-9.81, P=0.94). There were no major periprocedural complications documented. The difference in restricted mean survival-time free from stroke at two years between treated and control was 26.2 days (95%CI 5.52-46.85, P=0.013). CONCLUSIONS In this Asian cohort, we report a low incidence of ischemic stroke recurrence and new-onset AF in patients who underwent PFO closure. When compared to the medical therapy group, there was no significant difference in the incidence of stroke recurrence and new-onset AF. Further studies involving larger real-world cohorts are warranted to identify patients who are more likely to benefit from PFO closure.
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Affiliation(s)
- Chen Ee Low
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Isis Claire Zy Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Sounak Rana
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yong Qin Lee
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Xintong Chen
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Jun Tao Fang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hsin Hui Lam
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kathleen Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Joanna Yang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ivandito Kuntjoro
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Ting Ting Low
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Edward Cy Lee
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Vijay K Sharma
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Leonard Ll Yeo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Ching Hui Sia
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Benjamin Yq Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore.
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Boyko M, Chaturvedi S, Beland B, Najm M, Demchuk AM, Menon BK, Almekhlafi M. Prevalence of high-risk aortic arch atherosclerosis features on computed tomography angiography in embolic stroke of undetermined source. J Stroke Cerebrovasc Dis 2023; 32:107374. [PMID: 37813086 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/17/2023] [Accepted: 09/14/2023] [Indexed: 10/11/2023] Open
Abstract
INTRODUCTION Embolic stroke of undetermined source (ESUS) comprises a heterogenous group. There is a need to further identify etiologies within this group to guide management strategies. We examined the prevalence of aortic arch atherosclerosis (AAA) on CT angiography (CTA) in patients with embolic stroke of undetermined source (ESUS) to characterize high-risk plaque features. METHODS All patients from two prospective multicenter acute ischemic stroke studies (INTERRSeCT and PRove-IT) were included if the CTA adequately imaged the proximal aortic arch and the stroke etiology was recorded. Three readers blinded to stroke etiology analyzed the following AAA plaque features on baseline CTA at the time of stroke: 1) thickness in millimetres (mm); 2) morphology (none, smooth, ulcerated, or protruding); 3) location within the aortic arch (proximal, transverse, or distal); and 4) calcification (none, single small, multiple small, single large, or diffuse extensive). RESULTS We included 1063 patients, of which 293 (27.6%) had ESUS (mean age 67.5 years; 46.4% men; median NIHSS 12; 80.6% large vessel occlusion). Mean AAA thickness was significantly larger in ESUS patients (3.8 mm) compared to non-ESUS patients (3.0 mm; p<0.0001) and to a subgroup of patients with large artery atherosclerosis (2.9 mm; p=0.003). ESUS patients had a significantly higher proportion of ulcerated or protruding plaques (17.4% vs 10.3%; risk ratio 1.7, 95% C.I. 1.2-2.4, p=0.002). The location of AAA in the ESUS group was the ascending aorta in 37.9%, transverse arch in 42.3%, and descending aorta in 84.6%. Although AAA was mostly located in the distal aortic arch, ulcerated or protruding plaques were least common in the distal arch (p=0.002). There was no difference between ESUS and non-ESUS patients in plaque location (p=0.23) or calcification grade (p=0.092). CONCLUSION ESUS patients in our study had thicker AAA and a higher prevalence of ulcerated or protruding plaques located more proximally within the aortic arch. High-risk plaque features may suggest a causal role of AAA in the ESUS population with visible intracranial occlusions.
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Affiliation(s)
- Matthew Boyko
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada.
| | - Surbhi Chaturvedi
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
| | - Benjamin Beland
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
| | - Mohamed Najm
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
| | - Andrew M Demchuk
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
| | - Bijoy K Menon
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
| | - Mohammed Almekhlafi
- Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Canada
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Capirossi C, Laiso A, Renieri L, Capasso F, Limbucci N. Epidemiology, organization, diagnosis and treatment of acute ischemic stroke. Eur J Radiol Open 2023; 11:100527. [PMID: 37860148 PMCID: PMC10582298 DOI: 10.1016/j.ejro.2023.100527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 09/25/2023] [Accepted: 09/30/2023] [Indexed: 10/21/2023] Open
Abstract
The management of acute ischemic stroke is changing. Over the period of 2010-2050, the number of incident strokes is expected to be more than double. Rapid access to mechanical thrombectomy for patients with large vessel occlusion is critically associated with their functional outcome. Moreover, patients with first pass effect had a better clinical outcome, lower mortality, and fewer procedural adverse events. We discuss some advances in acute ischemic stroke regarding the organization, the diagnosis and the treatment.
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Affiliation(s)
- Carolina Capirossi
- Interventional Neuroradiology Unit, University Hospital Careggi, Florence, Italy
| | - Antonio Laiso
- Interventional Neuroradiology Unit, University Hospital Careggi, Florence, Italy
| | - Leonardo Renieri
- Interventional Neuroradiology Unit, University Hospital Careggi, Florence, Italy
| | - Francesco Capasso
- Interventional Neuroradiology Unit, University Hospital Careggi, Florence, Italy
| | - Nicola Limbucci
- Interventional Neuroradiology Unit, University Hospital Careggi, Florence, Italy
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50
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Luo N, Shang ZY, Yang BQ, Ntaios G, Chen HS. Age-dependent sex differences in non-stenotic intracranial plaque of embolic stroke of undetermined source. Sci Rep 2023; 13:20652. [PMID: 38001235 PMCID: PMC10673951 DOI: 10.1038/s41598-023-48091-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/22/2023] [Indexed: 11/26/2023] Open
Abstract
Age and sex have effect on atherosclerosis. This study aimed to investigate their effect on non-stenotic intracranial atherosclerotic plaque (NIAP) in embolic stroke of undetermined source (ESUS) using high-resolution magnetic resonance imaging (HR-MRI). We retrospectively recruited consecutive ESUS patients who underwent intracranial HR-MRI to assess the plaque characteristics (remodeling index [RI], plaque burden [PB], fibrous cap [FC], discontinuity of plaque surface [DPS], intraplaque hemorrhage [IPH] and complicated plaque [CP]). We divided patients into three groups (< 60 years, 60-74 years, ≥ 75 years). 155 patients with ipsilateral NIAP were found from 243 ESUS patients, with 106 men (68.39%) and 49 women (31.61%). In total population or age group under 60 years, there were no significant differences in plaque characteristics between men and women (all p > 0.05). In age group of 60-74 years, men were associated with higher PB (66.27 ± 9.17% vs 60.91 ± 8.86%, p = 0.017) and RI (1.174 vs 1.156, p = 0.019), higher prevalence of DPS (82.50% vs 60.00%, p = 0.036) and complicated plaque (85.00% vs 63.33%, p = 0.036). For subjects ≥ 75 years old, PB were significantly higher in twomen vs men (68.85 ± 6.14% vs 62.62 ± 7.36%, p = 0.040). In addition, the probability for PBupper (≥ median PB), RIupper (≥ median RI) and vulnerable plaque increased as age increased, and its predictive power for index ESUS was higher in men than women. This study identified age-dependent sex differences in NIAP characteristics of ESUS patients, which will help us clarify their etiology.
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Affiliation(s)
- Na Luo
- Department of Neurology, General Hospital of Northern Theater Command, Shenyang, People's Republic of China
| | - Zi-Yang Shang
- Department of Neurology, General Hospital of Northern Theater Command, Shenyang, People's Republic of China
| | - Ben-Qiang Yang
- Department of Radiology, General Hospital of Northern Theater Command, Shenyang, China
| | - George Ntaios
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Hui-Sheng Chen
- Department of Neurology, General Hospital of Northern Theater Command, Shenyang, People's Republic of China.
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