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Saglietto A, Tripoli F, Zwanenburg J, Biessels GJ, De Ferrari GM, Anselmino M, Ridolfi L, Scarsoglio S. Role of the vessel morphology on the lenticulostriate arteries hemodynamics during atrial fibrillation: A CFD-based multivariate regression analysis. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2024; 254:108303. [PMID: 38943985 DOI: 10.1016/j.cmpb.2024.108303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/11/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
BACKGROUND AND OBJECTIVE Atrial fibrillation (AF) is the most common cardiac arrhythmia, inducing accelerated and irregular beating. Beside well-known disabling symptoms - such as palpitations, reduced exercise tolerance, and chest discomfort - there is growing evidence that an alteration of deep cerebral hemodynamics due to AF increases the risk of vascular dementia and cognitive impairment, even in the absence of clinical strokes. The alteration of deep cerebral circulation in AF represents one of the least investigated among the possible mechanisms. Lenticulostriate arteries (LSAs) are small perforating arteries mainly departing from the middle cerebral artery (MCA) and susceptible to small vessel disease, which is one of the mechanisms of subcortical vascular dementia development. The purpose of this study is to investigate the impact of different LSAs morphologies on the cerebral hemodynamics during AF. METHODS By combining a computational fluid dynamics (CFD) analysis of LSAs with 7T high-resolution magnetic resonance imaging (MRI), we performed different CFD-based multivariate regression analyses to detect which geometrical and morphological vessel features mostly affect AF hemodynamics in terms of wall shear stress. We exploited 17 cerebral 7T-MRI derived LSA vascular geometries extracted from 10 subjects and internal carotid artery data from validated 0D cardiovascular-cerebral modeling as inflow conditions. RESULTS Our results revealed that few geometrical variables - namely the size of the MCA and the bifurcation angles between MCA and LSA - are able to satisfactorily predict the AF impact. In particular, the present study indicates that LSA morphologies exhibiting markedly obtuse LSA-MCA inlet angles and small MCA size downstream of the LSA-MCA bifurcation may be more prone to vascular damage induced by AF. CONCLUSIONS The present MRI-based computational study has been able for the first time to: (i) investigate the net impact of LSAs vascular morphologies on cerebral hemodynamics during AF events; (ii) detect which combination of morphological features worsens the hemodynamic response in the presence of AF. Awaiting necessary clinical confirmation, our analysis suggests that the local hemodynamics of LSAs is affected by their geometrical features and some LSA morphologies undergo greater hemodynamic alterations in the presence of AF.
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Affiliation(s)
- Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department, "Città della Salute e della Scienza" Hospital, Turin, Italy; Department of Medical Sciences, University of Turin, Turin, Italy
| | - Francesco Tripoli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Jaco Zwanenburg
- Center for Image Sciences, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Geert Jan Biessels
- UMC Brain Center, University Medical Centre Utrecht, Utrecth, the Netherlands
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Cardiovascular and Thoracic Department, "Città della Salute e della Scienza" Hospital, Turin, Italy; Department of Medical Sciences, University of Turin, Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Cardiovascular and Thoracic Department, "Città della Salute e della Scienza" Hospital, Turin, Italy; Department of Medical Sciences, University of Turin, Turin, Italy.
| | - Luca Ridolfi
- Department of Environmental, Land and Infrastructure Engineering, Politecnico di Torino, Turin, Italy
| | - Stefania Scarsoglio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
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Demoniere F, Abdelli R, Rivard L. Could the Early Detection of Atrial Fibrillation Reduce the Risk of Developing Dementia? Biomedicines 2024; 12:1931. [PMID: 39200396 PMCID: PMC11351480 DOI: 10.3390/biomedicines12081931] [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: 07/02/2024] [Revised: 08/01/2024] [Accepted: 08/07/2024] [Indexed: 09/02/2024] Open
Abstract
Atrial fibrillation (AF) and dementia are major global public health issues and share common risk factors, especially after the age of 65 and regardless of the presence of stroke. Despite accounting for potential confounders, AF appears to be an independent risk factor for cognitive decline and dementia. The mechanisms are likely to be multifactorial and may include AF-related ischemic stroke, cerebral hypoperfusion, microbleeds, systemic inflammation, genetic factors, and small vessel disease, leading to brain atrophy and white matter damage. The early aggressive management of AF and comorbidities may reduce the risk of dementia. Indeed, the early detection of AF-related cognitive impairment should allow for the early implementation of measures to prevent the development of dementia, mainly through integrative approaches involving the correction of risk factors and maintenance of rhythm control. Well-designed prospective studies are needed to determine whether early detection and AF treatment can prevent dementia and identify whether optimal integrative measures are effective in preventing cognitive impairment and dementia.
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Affiliation(s)
| | | | - Léna Rivard
- Montreal Heart Institute, Université de Montréal, 5000 Belanger Street, Montreal, QC H1T 1C8, Canada
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Müller J, Koch L, Halbfass P, Nentwich K, Berkovitz A, Barth S, Wächter C, Lehrmann H, Deneke T. A screening for cerebral deoxygenation during VT ablations in patients with structural heart disease. Clin Res Cardiol 2024:10.1007/s00392-024-02493-4. [PMID: 39012507 DOI: 10.1007/s00392-024-02493-4] [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] [Received: 05/07/2024] [Accepted: 07/04/2024] [Indexed: 07/17/2024]
Abstract
BACKGROUND Patients undergoing ventricular tachycardia (VT) ablation often present with structural heart disease (SHD) and reduced ejection fraction. Inducing VT by programmed electrical stimulation (PES) puts these patients at risk for hemodynamic instability and cerebral hypoperfusion. OBJECTIVE The present study screens for cerebral oxygen desaturation phases (ODPs) in patients undergoing VT ablation. METHODS Forty-seven patients (age 61 ± 14 years, 72% males) underwent ablation of sustained VT with simultaneous neuromonitoring using near-infrared spectroscopy (NIRS). RESULTS Analysis of NIRS signal identified ODPs in 29 patients (62%). ODPs were associated with a higher prevalence of ischemic heart disease (IHD) (45% vs. 11%, p = 0.024), previous VT episodes (n = 16 vs. 4, p = 0.018), and VTs inducible by PES (n = 2.4 vs. 1.2, p = 0.004). Patients with ODPs were more likely to be admitted to intensive care unit (ICU) (78% vs. 33%, p = 0.005) and had more in-hospital VT recurrences (24% vs. 0%, p = 0.034). No differences were observed in VT recurrence rates after hospital discharge (41.4% vs. 44.4%, p = 0.60) and left ventricular ejection fraction (34% vs. 38%, p = 0.567). IHD (OR: 32.837, p = 0.006), ICU admission (OR: 14.112, p = 0.013), and the number of VTs inducible at PES (OR: 2.705, p = 0.015) were independently associated with ODPs. CONCLUSIONS This study registers episodes of cerebral hypoperfusion in 62% of patients undergoing VT ablation and identifies IHD and the number of VTs inducible at PES as possible risk factors for these episodes.
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Affiliation(s)
- Julian Müller
- Department of Cardiology, Faculty of Medicine, University Heart Center Freiburg-Bad Krozingen, University of Freiburg, Freiburg im Breisgau, Germany.
| | - Lena Koch
- Department of Cardiology, Faculty of Medicine, University Heart Center Freiburg-Bad Krozingen, University of Freiburg, Freiburg im Breisgau, Germany
| | - Philipp Halbfass
- Department of Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Karin Nentwich
- Clinic for Interventional Electrophysiology, Heart Centre Bad Neustadt, Bad Neustadt a. d. Saale, Germany
- Department of Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Artur Berkovitz
- Clinic for Interventional Electrophysiology, Heart Centre Bad Neustadt, Bad Neustadt a. d. Saale, Germany
| | - Sebastian Barth
- Clinic for Interventional Electrophysiology, Heart Centre Bad Neustadt, Bad Neustadt a. d. Saale, Germany
- Department of Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Christian Wächter
- Department of Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Heiko Lehrmann
- Department of Cardiology, Faculty of Medicine, University Heart Center Freiburg-Bad Krozingen, University of Freiburg, Freiburg im Breisgau, Germany
| | - Thomas Deneke
- Clinic for Interventional Electrophysiology, Heart Centre Bad Neustadt, Bad Neustadt a. d. Saale, Germany
- Clinic for Electrophysiology, Klinikum Nuernberg, Campus South, University Hospital of the Paracelsus Medical University, Nuremberg, Germany
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4
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Rasti SD, Sugiarto AAR, Nuryandi APA, Arvianti MZ, Yomara RT, Nagasastra J, Julario R, Fagi RA, Windrati DMH. Revitalizing brain perfusion: Unveiling advancements through rhythm control strategies in atrial fibrillation-A systematic review. J Arrhythm 2024; 40:411-422. [PMID: 38939785 PMCID: PMC11199798 DOI: 10.1002/joa3.13056] [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: 01/25/2024] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 06/29/2024] Open
Abstract
Background Recent evidence suggests an elevated risk of cognitive impairment and dementia in individuals with atrial fibrillation (AF), irrespective of stroke occurrence. AF, known to reduce brain perfusion, particularly through silent cerebral ischemia, underscores the intricate relationship between cardiac and cerebral health. The heart plays a crucial role in supporting normal brain function, and rhythm control, a standard AF treatment, has demonstrated enhancements in brain perfusion. This systematic review aimed to examine published data concerning the influence of rhythm control on brain perfusion in patients with atrial fibrillation. Methods A systematic search for relevant studies was carried out in Scopus, PubMed, Cochrane Reviews, ProQuest, and EBSCOhost, spanning from their inception until April 30, 2023. Studies that specifically examined brain perfusion following any form of rhythm control in atrial fibrillation were included in the review. Results The review encompassed 10 studies involving 436 participants. Among these, six utilized electrical cardioversion for rhythm control. The majority (8 out of 10) demonstrated that restoring sinus rhythm markedly enhances brain perfusion. In one of the two remaining studies, notable improvement was observed specifically in a region closely linked to cognition. Additionally, both studies reporting data on the Mini-Mental State Examination (MMSE) showed a consistent and significant increase in scores following rhythm control. Conclusion Successful rhythm control in AF emerges as a significant contributor to enhanced brain perfusion, suggesting a potential therapeutic avenue for reducing cognitive impairment incidence. However, further validation through larger prospective studies and randomized trials is warranted.
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Affiliation(s)
| | | | | | | | | | | | - Rerdin Julario
- Department of Cardiology and Vascular MedicineDr. Soetomo General Hospital, Faculty of Medicine, University of AirlanggaSurabayaIndonesia
| | - Rosi Amrilla Fagi
- Department of Cardiology and Vascular MedicineDr. Soetomo General Hospital, Faculty of Medicine, University of AirlanggaSurabayaIndonesia
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Saglietto A, Bertello E, Barra M, Ferraro I, Rovera C, Orzan F, De Ferrari GM, Anselmino M. MRI pattern characterization of cerebral cardioembolic lesions following atrial fibrillation ablation. Front Cardiovasc Med 2024; 11:1327567. [PMID: 38327489 PMCID: PMC10847299 DOI: 10.3389/fcvm.2024.1327567] [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: 10/25/2023] [Accepted: 01/09/2024] [Indexed: 02/09/2024] Open
Abstract
Background Recognizing etiology is essential for treatment and secondary prevention of cerebral ischemic events. A magnetic resonance imaging (MRI) pattern suggestive of an embolic etiology has been described but, to date, there are no uniformly accepted criteria. Aim The purpose of the study is to describe MRI features of ischemic cerebral lesions occurring after transcatheter ablation of atrial fibrillation (AF). Methods A systematic review and meta-analysis of studies performing brain imaging investigations before and after AF transcatheter ablation was performed. The incidence of cerebral ischemic lesions after AF transcatheter ablation was the primary endpoint. The co-primary endpoints were the prevalence of the different neuroimaging features regarding the embolic cerebral ischemic lesions. Results A total of 25 studies, encompassing 3,304 patients, were included in the final analysis. The incidence of ischemic cerebral lesions following AF transcatheter ablation was 17.2% [95% confidence interval (CI) 12.2%-23.8%], of which a minimal fraction was symptomatic [0.60% (95% CI 0.09%-3.9%)]. Only 1.6% of the lesions (95% CI 0.9%-3.0%) had a diameter >10 mm, and in 20.5% of the cases the lesions were multiple (95% CI 17.1%-24.4%). Brain lesions were equally distributed across the two hemispheres and the different lobes; cortical location was more frequent [64.0% (95% CI 42.9%-80.8%)] while the middle cerebral artery territory was the most involved 37.0% (95% CI 27.3-48.0). Conclusions The prevailing MRI pattern comprises a predominance of small (<10 mm) cortical lesions, more prevalent in the territory of the middle cerebral artery.
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Affiliation(s)
- Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department, “Città della Salute e della Scienza” Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Eleonora Bertello
- Division of Cardiology, Cardiovascular and Thoracic Department, “Città della Salute e della Scienza” Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Marina Barra
- Division of Cardiology, Cardiovascular and Thoracic Department, “Città della Salute e della Scienza” Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Ilenia Ferraro
- Division of Cardiology, Santa Croce e Carle Hospital, Cuneo, Italy
| | - Chiara Rovera
- Department of Cardiology, Civic Hospital of Chivasso, Chivasso, Italy
| | - Fulvio Orzan
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Cardiovascular and Thoracic Department, “Città della Salute e della Scienza” Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Cardiovascular and Thoracic Department, “Città della Salute e della Scienza” Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
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6
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Saglietto A, Scarsoglio S, Tripoli F, Zwanenburg J, Biessels GJ, De Ferrari GM, Ridolfi L, Anselmino M. Atrial fibrillation hemodynamic effects on lenticulostriate arteries identified at 7-Tesla cerebral magnetic resonance imaging. Clin Transl Med 2023; 13:e1367. [PMID: 37735820 PMCID: PMC10514374 DOI: 10.1002/ctm2.1367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/31/2023] [Accepted: 08/07/2023] [Indexed: 09/23/2023] Open
Affiliation(s)
- Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department“Città della Salute e della Scienza” HospitalTurinItaly
- Department of Medical SciencesUniversity of TurinTurinItaly
| | - Stefania Scarsoglio
- Department of Mechanical and Aerospace EngineeringPolitecnico di TorinoTurinItaly
| | - Francesco Tripoli
- Department of Mechanical and Aerospace EngineeringPolitecnico di TorinoTurinItaly
| | - Jaco Zwanenburg
- Center for Image SciencesUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Geert Jan Biessels
- Department of Neurology, UMC Brain CenterUniversity Medical Centre UtrechtUtrechtThe Netherlands
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Cardiovascular and Thoracic Department“Città della Salute e della Scienza” HospitalTurinItaly
- Department of Medical SciencesUniversity of TurinTurinItaly
| | - Luca Ridolfi
- Department of Environmental, Land and Infrastructure EngineeringPolitecnico di TorinoTurinItaly
| | - Matteo Anselmino
- Division of Cardiology, Cardiovascular and Thoracic Department“Città della Salute e della Scienza” HospitalTurinItaly
- Department of Medical SciencesUniversity of TurinTurinItaly
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7
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Gotzmann M, Anselmino M. Editorial: Atrial fibrillation in dementia. Front Cardiovasc Med 2023; 10:1244294. [PMID: 37485266 PMCID: PMC10361613 DOI: 10.3389/fcvm.2023.1244294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/25/2023] Open
Affiliation(s)
- Michael Gotzmann
- Department of Cardiology and Rhythmology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany
| | - Matteo Anselmino
- Division of Cardiology, Department of Medical Sciences, “Città Della Salute e Della Scienza di Torino” Hospital, University of Turin, Turin, Italy
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8
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Calvert P, Kollias G, Pürerfellner H, Narasimhan C, Osorio J, Lip GYH, Gupta D. Silent cerebral lesions following catheter ablation for atrial fibrillation: a state-of-the-art review. Europace 2023; 25:euad151. [PMID: 37306314 PMCID: PMC10259069 DOI: 10.1093/europace/euad151] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Atrial fibrillation is associated with neurocognitive comorbidities such as stroke and dementia. Evidence suggests that rhythm control-especially if implemented early-may reduce the risk of cognitive decline. Catheter ablation is highly efficacious for restoring sinus rhythm in the setting of atrial fibrillation; however, ablation within the left atrium has been shown to result in MRI-detected silent cerebral lesions. In this state-of-the-art review article, we discuss the balance of risk between left atrial ablation and rhythm control. We highlight suggestions to lower the risk, as well as the evidence behind newer forms of ablation such as very high power short duration radiofrequency ablation and pulsed field ablation.
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Affiliation(s)
- Peter Calvert
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
- Department of Cardiology, Liverpool Heart & Chest Hospital NHS Foundation Trust, Thomas Drive, Liverpool L14 3PE, UK
| | | | | | - Calambur Narasimhan
- Department of Cardiac Electrophysiology, AIG Hospitals, 1-66/AIG/2 to 5, Mindspace Road, Gachibowli Hyderabad, Telangana 500032, India
| | - Jose Osorio
- Grandview Medical Center, Arrhythmia Institute at Grandview, 3686 Grandview Parkway Suite 720, Birmingham, AL 35243, USA
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
- Department of Cardiology, Liverpool Heart & Chest Hospital NHS Foundation Trust, Thomas Drive, Liverpool L14 3PE, UK
- Danish Centre for Clinical Health Services Research, Aalborg University, Aalborg, Denmark
| | - Dhiraj Gupta
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, UK
- Department of Cardiology, Liverpool Heart & Chest Hospital NHS Foundation Trust, Thomas Drive, Liverpool L14 3PE, UK
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9
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Gaita F, Ferraris F, Anselmino M, Calò L. Atrial fibrillation fundamentals: from physiopathology to transcatheter ablation. Eur Heart J Suppl 2023; 25:C7-C11. [PMID: 37125271 PMCID: PMC10132612 DOI: 10.1093/eurheartjsupp/suad003] [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] [Indexed: 05/02/2023]
Abstract
Atrial fibrillation (AF) is a common and harmful arrhythmia. Its complex pathogenesis can be outlined using Coumel's Triangle, that considers at the base of AF three different factors: substrate, trigger, and catalyst factor. The triangle can serve as a guide to understand the mechanism of action of the different possible treatments. Anti-arrhythmic drug therapies have a modest efficacy and no proven benefit on prognosis. Interventional therapy is more effective, especially if employed in the first stages of the disease, and can reduce mortality in selected populations. Ablative schemes must be different depending on the type of AF (paroxysmal, persistent) and the presence or absence of atrial dilation.
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Affiliation(s)
- Fiorenzo Gaita
- Corresponding author. Tel: +39 011 633 6767, Fax: +39 011 633 6769,
| | - Federico Ferraris
- Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza di Torino, Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Department of Medical Sciences, Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - Leonardo Calò
- Division of Cardiology, Policlinico Casilino, Roma, Italy
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10
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Saglietto A, Scarsoglio S, Canova D, De Ferrari GM, Ridolfi L, Anselmino M. Beat-to-beat finger photoplethysmography in atrial fibrillation patients undergoing electrical cardioversion. Sci Rep 2023; 13:6751. [PMID: 37185372 PMCID: PMC10130175 DOI: 10.1038/s41598-023-33952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/21/2023] [Indexed: 05/17/2023] Open
Abstract
Atrial fibrillation (AF)-induced peripheral microcirculatory alterations have poorly been investigated. The present study aims to expand current knowledge through a beat-to-beat analysis of non-invasive finger photoplethysmography (PPG) in AF patients restoring sinus rhythm by electrical cardioversion (ECV). Continuous non-invasive arterial blood pressure and left middle finger PPG pulse oximetry waveform (POW) signals were continuously recorded before and after elective ECV of consecutive AF or atrial flutter (AFL) patients. The main metrics (mean, standard deviation, coefficient of variation), as well as a beat-to-beat analysis of the pulse pressure (PP) and POW beat-averaged value (aPOW), were computed to compare pre- and post-ECV phases. 53 patients (mean age 69 ± 8 years, 79% males) were enrolled; cardioversion was successful in restoring SR in 51 (96%) and signal post-processing was feasible in 46 (87%) patients. In front of a non-significant difference in mean PP (pre-ECV: 51.96 ± 13.25, post-ECV: 49.58 ± 10.41 mmHg; p = 0.45), mean aPOW significantly increased after SR restoration (pre-ECV: 0.39 ± 0.09, post-ECV: 0.44 ± 0.06 a.u.; p < 0.001). Moreover, at beat-to-beat analysis linear regression yielded significantly different slope (m) for the PP (RR) relationship compared to aPOW(RR) [PP(RR): 0.43 ± 0.18; aPOW(RR): 1.06 ± 0.17; p < 0.001]. Long (> 95th percentile) and short (< 5th percentile) RR intervals were significantly more irregular in the pre-ECV phases for both PP and aPOW; however, aPOW signal suffered more fluctuations compared to PP (p < 0.001 in both phases). Present findings suggest that AF-related hemodynamic alterations are more manifest at the peripheral (aPOW) rather than at the upstream macrocirculatory level (PP). Restoring sinus rhythm increases mean peripheral microvascular perfusion and decreases variability of the microvascular hemodynamic signals. Future dedicated studies are required to determine if AF-induced peripheral microvascular alterations might relate to long-term prognostic effects.
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Affiliation(s)
- Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department, ″Citta della Salute e della Scienza″ Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Stefania Scarsoglio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Turin, Italy.
| | - Daniela Canova
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Cardiovascular and Thoracic Department, ″Citta della Salute e della Scienza″ Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Luca Ridolfi
- Department of Environmental, Land and Infrastructure Engineering, Politecnico di Torino, Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, Cardiovascular and Thoracic Department, ″Citta della Salute e della Scienza″ Hospital, Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
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11
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Association between atrial fibrillation burden and cognitive function in patients with atrial fibrillation. Int J Cardiol 2023; 377:73-78. [PMID: 36638917 DOI: 10.1016/j.ijcard.2023.01.007] [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] [Received: 10/29/2022] [Revised: 12/11/2022] [Accepted: 01/08/2023] [Indexed: 01/11/2023]
Abstract
BACKGROUND Accumulating evidence has demonstrated an association between clinical atrial fibrillation (AF) and cognitive impairment. This study aimed to further clarify the impact of AF burden on cognitive function based on detailed electrophysiological recordings and standardized assessments of cognitive function. METHODS This prospective cohort study, conducted at the Cardiac Electrophysiology Clinic of a tertiary center, included patients with non-valvular AF. AF burden was evaluated using 14-day patch-based electrocardiography. Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA). RESULTS Enrolled patients (n = 253) were grouped according to the median AF burden (13.52%). Patients with higher AF burden were significantly older and had larger left atrium size, a worse ejection fraction, and a lower MoCA score than those with lower AF burden. Predictors of MoCA score included age, CHA2DS2-VASc score, AF burden, and Center for Epidemiologic Studies Depression Scale scores. The association between MoCA scores and AF burden remained significant after adjustment for demographic characteristics, underlying diseases, and echocardiographic parameters (standardized beta coefficient: -0.159, 95% confidence interval: -0.020 to -0.004, p = 0.004). CONCLUSION AF burden is associated with cognitive function in patients with AF. Further studies are required to determine whether reducing AF burden can preserve cognitive function in these patients.
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12
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De Potter T, Valeriano C, Buytaert D, Bouchez S, Ector J. Noninvasive neurological monitoring to enhance pLVAD-assisted ventricular tachycardia ablation - a Mini review. Front Cardiovasc Med 2023; 10:1140153. [PMID: 36970357 PMCID: PMC10031079 DOI: 10.3389/fcvm.2023.1140153] [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: 01/08/2023] [Accepted: 02/16/2023] [Indexed: 03/29/2023] Open
Abstract
For critically ill patients, hemodynamic fluctuations can be life-threatening; this is particularly true for patients experiencing cardiac comorbidities. Patients may suffer from problems with heart contractility and rate, vascular tone, and intravascular volume, resulting in hemodynamic instability. Unsurprisingly, hemodynamic support provides a crucial and specific benefit during percutaneous ablation of ventricular tachycardia (VT). Mapping, understanding, and treating the arrhythmia during sustained VT without hemodynamic support is often infeasible due to patient hemodynamic collapse. Substrate mapping in sinus rhythm can be successful for VT ablation, but there are limitations to this approach. Patients with nonischemic cardiomyopathy may present for ablation without exhibiting useful endocardial and/or epicardial substrate-based ablation targets, either due to diffuse extent or a lack of identifiable substrate. This leaves activation mapping during ongoing VT as the only viable diagnostic strategy. By enhancing cardiac output, percutaneous left ventricular assist devices (pLVAD) may facilitate conditions for mapping that would otherwise be incompatible with survival. However, the optimal mean arterial pressure to maintain end-organ perfusion in presence of nonpulsatile flow remains unknown. Near infrared oxygenation monitoring during pLVAD support provides assessment of critical end-organ perfusion during VT, enabling successful mapping and ablation with the continual assurance of adequate brain oxygenation. This focused review provides practical use case scenarios for such an approach, which aims to allow mapping and ablation of ongoing VT while drastically reducing the risk of ischemic brain injury.
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Affiliation(s)
- Tom De Potter
- Cardiovascular Center Aalst, Arrhythmia Unit, OLV Hospital, Aalst, Belgium
- Correspondence: Tom De Potter
| | - Chiara Valeriano
- Cardiovascular Center Aalst, Arrhythmia Unit, OLV Hospital, Aalst, Belgium
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Dimitri Buytaert
- Cardiovascular Center Aalst, Arrhythmia Unit, OLV Hospital, Aalst, Belgium
| | | | - Joris Ector
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium
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13
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Scarsoglio S, Saglietto A, Tripoli F, Zwanenburg JJM, Biessels GJ, De Ferrari GM, Anselmino M, Ridolfi L. Cerebral hemodynamics during atrial fibrillation: Computational fluid dynamics analysis of lenticulostriate arteries using 7 T high-resolution magnetic resonance imaging. PHYSICS OF FLUIDS (WOODBURY, N.Y. : 1994) 2022; 34:121909. [PMID: 36776539 PMCID: PMC9907777 DOI: 10.1063/5.0129899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/26/2022] [Indexed: 06/18/2023]
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia, inducing irregular and faster heart beating. Aside from disabling symptoms-such as palpitations, chest discomfort, and reduced exercise capacity-there is growing evidence that AF increases the risk of dementia and cognitive decline, even in the absence of clinical strokes. Among the possible mechanisms, the alteration of deep cerebral hemodynamics during AF is one of the most fascinating and least investigated hypotheses. Lenticulostriate arteries (LSAs)-small perforating arteries perpendicularly departing from the anterior and middle cerebral arteries and supplying blood flow to basal ganglia-are especially involved in silent strokes and cerebral small vessel diseases, which are considered among the main vascular drivers of dementia. We propose for the first time a computational fluid dynamics analysis to investigate the AF effects on the LSAs hemodynamics by using 7 T high-resolution magnetic resonance imaging (MRI). We explored different heart rates (HRs)-from 50 to 130 bpm-in sinus rhythm and AF, exploiting MRI data from a healthy young male and internal carotid artery data from validated 0D cardiovascular-cerebral modeling as inflow condition. Our results reveal that AF induces a marked reduction of wall shear stress and flow velocity fields. This study suggests that AF at higher HR leads to a more hazardous hemodynamic scenario by increasing the atheromatosis and thrombogenesis risks in the LSAs region.
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Affiliation(s)
- S. Scarsoglio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy
| | - A. Saglietto
- Division of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Università di Torino, Torino, Italy
| | - F. Tripoli
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy
| | - J. J. M. Zwanenburg
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - G. J. Biessels
- Department of Neurology UMC Brain Center, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - G. M. De Ferrari
- Division of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Università di Torino, Torino, Italy
| | - M. Anselmino
- Division of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Università di Torino, Torino, Italy
| | - L. Ridolfi
- Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Torino, Italy
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Anselmino M, Scarsoglio S, Ridolfi L, De Ferrari GM, Saglietto A. Insights from computational modeling on the potential hemodynamic effects of sinus rhythm versus atrial fibrillation. Front Cardiovasc Med 2022; 9:844275. [PMID: 36187015 PMCID: PMC9515395 DOI: 10.3389/fcvm.2022.844275] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Atrial fibrillation (AF) is the most common clinical tachyarrhythmia, posing a significant burden to patients, physicians, and healthcare systems worldwide. With the advent of more effective rhythm control strategies, such as AF catheter ablation, an early rhythm control strategy is progressively demonstrating its superiority not only in symptoms control but also in prognostic terms, over a standard strategy (rate control, with rhythm control reserved only to patients with refractory symptoms). This review summarizes the different impacts exerted by AF on heart mechanics and systemic circulation, as well as on cerebral and coronary vascular beds, providing computational modeling-based hemodynamic insights in favor of pursuing sinus rhythm maintenance in AF patients.
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Affiliation(s)
- Matteo Anselmino
- Division of Cardiology, Department of Medical Sciences, “Città della Salute e della Scienza di Torino” Hospital, University of Turin, Turin, Italy
- *Correspondence: Matteo Anselmino,
| | - Stefania Scarsoglio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Luca Ridolfi
- Department of Environmental, Land, and Infrastructure Engineering, Politecnico di Torino, Turin, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Department of Medical Sciences, “Città della Salute e della Scienza di Torino” Hospital, University of Turin, Turin, Italy
| | - Andrea Saglietto
- Division of Cardiology, Department of Medical Sciences, “Città della Salute e della Scienza di Torino” Hospital, University of Turin, Turin, Italy
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15
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Saglietto A, Ballatore A, Xhakupi H, De Ferrari GM, Anselmino M. Association of Catheter Ablation and Reduced Incidence of Dementia among Patients with Atrial Fibrillation during Long-Term Follow-Up: A Systematic Review and Meta-Analysis of Observational Studies. J Cardiovasc Dev Dis 2022; 9:jcdd9050140. [PMID: 35621851 PMCID: PMC9143892 DOI: 10.3390/jcdd9050140] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/10/2022] Open
Abstract
Background: Atrial fibrillation (AF) is independently associated with the onset of cognitive decline/dementia. AF catheter ablation (AFCA) is the most effective treatment strategy in terms of sinus rhythm maintenance, but its effects on dementia prevention remain under investigation. The aim of the present study was to perform a systematic review and meta-analysis of the presently available studies exploring the effect of AFCA on dementia occurrence. Methods: PubMed/MEDLINE databases were screened for articles through 14 March 2022 reporting adjusted time-to-event outcome data comparing AFCA and non-AFCA cohorts in terms of de novo dementia occurrence. A random effect meta-analysis was performed to estimate the meta-analytic hazard ratio (HR) of dementia occurrence in AFCA vs. non-AFCA cohorts, as well as the meta-analytic incidence rate of dementia in the non-AFCA cohort. Based on the aforementioned estimates, the number needed to treat (NNT), projected at median follow-up, was derived. Results: Four observational studies were included in the analysis, encompassing 40,146 patients (11,312 in the AFCA cohort; 28,834 in the non-AFCA cohort). AFCA conferred a significant protection to the development of dementia with an overall HR of 0.52 (95% CI 0.35–0.76). The incidence rate of dementia in the non-AFCA group was 1.12 events per 100 person-year (95% CI 0.47–2.67). The derived NNT projected to the median follow-up (4.5 years) was 41. Conclusion: AFCA is associated with a nearly 50% reduction in dementia occurrence during a median 4.5-year follow-up. Future randomized clinical trials are needed to reinforce these findings.
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Lin JC, Li CH, Chen YY, Weng CJ, Chien YS, Wu SJ, Lo CP, Tien HC, Lin CH, Huang JL, Lin YJ, Hsieh YC, Chen SA. Rhythm Control Better Prevents Dementia than Rate Control Strategies in Patients with Atrial Fibrillation-A Nationwide Cohort Study. J Pers Med 2022; 12:jpm12040572. [PMID: 35455688 PMCID: PMC9025212 DOI: 10.3390/jpm12040572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/24/2022] [Accepted: 03/31/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Atrial fibrillation (AF) increases the risk of dementia. Whether the pharmacological rhythm control of AF can reduce the risk of dementia compared to the rate control strategy remains unclear. We hypothesize that the rhythm control strategy is better than the rate control strategy in preventing dementia. Methods: AF patients aged ≥65 years were identified from the Taiwan National Health Insurance Database. Patients receiving anti-arrhythmic drugs at a cumulative defined daily dose (cDDD) of >30 within the first year of enrollment constituted the rhythm control group. Patients who used rate control medications for a cDDD of >30 constituted the rate control group. A multivariate Cox hazards regression model was used to determine the hazard ratio (HR) for dementia. Results: A total of 3382 AF patients (698 in the rhythm control group; 2684 in the rate control group) were analyzed. During a 4.86 ± 3.38 year follow-up period, 414 dementia events occurred. The rhythm control group had a lower rate of dementia than the rate control group (adjust HR: 0.75, p = 0.031). The rhythm control strategy reduced the risk of dementia particularly in those receiving aspirin (p = 0.03). Conclusions: In patients with AF, pharmacological rhythm control was associated with a lower risk of dementia than rate control over a long-term follow-up period, particularly in patients receiving aspirin treatment.
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Affiliation(s)
- Jiunn-Cherng Lin
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi 60090, Taiwan
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
| | - Cheng-Hung Li
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
| | - Yun-Yu Chen
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei 10617, Taiwan
| | - Chi-Jen Weng
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
| | - Yu-Shan Chien
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi 60090, Taiwan
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
| | - Shang-Ju Wu
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
| | - Chu-Pin Lo
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
| | - Hui-Chun Tien
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
| | - Ching-Heng Lin
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan;
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung 40704, Taiwan
| | - Jin-Long Huang
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- School of Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Yenn-Jiang Lin
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
| | - Yu-Cheng Hsieh
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Department of Data Science and Big Data Analytics, Providence University, Taichung 43301, Taiwan;
- Department of Financial Engineering, Providence University, Taichung 43301, Taiwan;
- School of Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- Correspondence: ; Tel.: +886-4-2251-6648; Fax: +886-4-2359-9257
| | - Shih-Ann Chen
- Cardiovascular Center, Taichung Veterans General Hospital, Taichung 40705, Taiwan; (J.-C.L.); (C.-H.L.); (C.-J.W.); (Y.-S.C.); (S.-J.W.); (J.-L.H.); (S.-A.C.)
- Department of Internal Medicine, Faculty of Medicine, Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Hsinchu 11217, Taiwan;
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
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17
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Atrial Fibrillation and Dementia: Epidemiological Insights on an Undervalued Association. Medicina (B Aires) 2022; 58:medicina58030361. [PMID: 35334537 PMCID: PMC8955523 DOI: 10.3390/medicina58030361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/16/2022] [Accepted: 02/24/2022] [Indexed: 12/18/2022] Open
Abstract
Background and objectives: Atrial fibrillation (AF) and dementia are growing causes of morbidity and mortality, representing relevant medical and socioeconomic burdens. In this study, based on data from the Global Burden of Disease Injuries and Risk Factors Study (GBD) 2019, we focused on AF and dementia distribution and investigated the potential correlation between the two epidemiological trends. Materials and Methods: Crude and age-standardized incidence, prevalence, mortality rate, and disability-adjusted life years (DALYs) lost, derived from GBD 2019, were reported for AF and dementia. Global features were also stratified by high and low sociodemographic-index (SDI) countries. Granger test analysis was performed to investigate the correlation between AF and dementia incidence time trends. Results: From 1990 to 2019 crude worldwide incidence and prevalence showed a dramatic increase for both conditions (from 43.24 to 61.01 and from 528.72 to 771.51 per 100,000 individuals for AF, respectively; from 54.60 to 93.52 and from 369.88 to 667.2 per 100,000 individuals for dementia, respectively). In the same timeframe, crude mortality rate doubled for AF and dementia (from 2.19 to 4.08, and from 10.49 to 20.98 per 100,000 individuals, respectively). Age-standardized estimate showed a substantial stability over the years, highlighting the key role of the progressively aging population. Crude estimates of all of the investigated metrics are greater in high SDI countries for both conditions. This association was still valid for age-standardized metrics, albeit by a reduced magnitude, suggesting the presence of higher risk factor burden in these countries. Finally, according to Granger test, we found a significant association between the historical trends of AF and dementia incidence (p = 0.004). Conclusions: AF and dementia burden progressively increased in the last three decades. Given the potential association between these two conditions, further clinical data assessing this relationship is needed.
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Saglietto A, De Ferrari GM, Anselmino M. Commentary: Differential Risk of Dementia Between Patients With Atrial Flutter and Atrial Fibrillation: A National Cohort Study. Front Cardiovasc Med 2022; 9:850968. [PMID: 35252409 PMCID: PMC8893163 DOI: 10.3389/fcvm.2022.850968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 01/21/2022] [Indexed: 11/25/2022] Open
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Saglietto A, Fois M, Ridolfi L, De Ferrari GM, Anselmino M, Scarsoglio S. A computational analysis of atrial fibrillation effects on coronary perfusion across the different myocardial layers. Sci Rep 2022; 12:841. [PMID: 35039584 PMCID: PMC8763927 DOI: 10.1038/s41598-022-04897-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 01/04/2022] [Indexed: 01/06/2023] Open
Abstract
Patients with atrial fibrillation (AF) may present ischemic chest pain in the absence of classical obstructive coronary disease. Among the possible causes, the direct hemodynamic effect exerted by the irregular arrhythmia has not been studied in detail. We performed a computational fluid dynamics analysis by means of a 1D-0D multiscale model of the entire human cardiovascular system, enriched by a detailed mathematical modeling of the coronary arteries and their downstream distal microcirculatory districts (subepicardial, midwall and subendocardial layers). Three mean ventricular rates were simulated (75, 100, 125 bpm) in both sinus rhythm (SR) and atrial fibrillation, and an inter-layer and inter-frequency analysis was conducted focusing on the ratio between mean beat-to-beat blood flow in AF compared to SR. Our results show that AF exerts direct hemodynamic consequences on the coronary microcirculation, causing a reduction in microvascular coronary flow particularly at higher ventricular rates; the most prominent reduction was seen in the subendocardial layers perfused by left coronary arteries (left anterior descending and left circumflex arteries).
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Affiliation(s)
- Andrea Saglietto
- Division of Cardiology, "Città della Salute e della Scienza di Torino" Hospital, Department of Medical Sciences, University of Turin, C.so Dogliotti 14, Turin, Italy
| | - Matteo Fois
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Luca Ridolfi
- Department of Environmental, Land and Infrastructure Engineering, Politecnico di Torino, Turin, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, "Città della Salute e della Scienza di Torino" Hospital, Department of Medical Sciences, University of Turin, C.so Dogliotti 14, Turin, Italy
| | - Matteo Anselmino
- Division of Cardiology, "Città della Salute e della Scienza di Torino" Hospital, Department of Medical Sciences, University of Turin, C.so Dogliotti 14, Turin, Italy.
| | - Stefania Scarsoglio
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
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