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Seo JH, Kim KH, Chun KJ, Lee BK, Cho BR, Ryu DR. Impact of low-density lipoprotein cholesterol on progression of aortic valve sclerosis and stenosis. Front Cardiovasc Med 2023; 10:1171703. [PMID: 37529711 PMCID: PMC10390070 DOI: 10.3389/fcvm.2023.1171703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/08/2023] [Indexed: 08/03/2023] Open
Abstract
Background Little research has been assessed atherosclerotic risk factors at various stages of calcific aortic valve disease. This study sought to determine risk factors of patients with aortic valve sclerosis (AVS) and mild to moderate aortic stenosis (AS). Methods The study included 1,007 patients diagnosed with AVS or mild to moderate AS according to echocardiographic criteria. Patients were identified as a rapid progression group if the annualized difference in peak aortic jet velocity (Vmax) between two echocardiographic examinations was >0.08 m/s/yr in AVS and >0.3 m/s/yr in AS, respectively. We used multivariable logistic regression analyses to assess the factors associated with rapid disease progression or progression to severe AS. Results Among 526 AVS patients, higher LDL-C level (odds ratio [OR] 1.22/per 25 mg/dl higher LDL-C, 95% confidence interval [CI] 1.05-1.43) was significantly associated with rapid disease progression. Compared to patients with LDL-C level <70 mg/dl, the adjusted OR for rapid progression were 1.32, 2.15, and 2.98 for those with LDL-C level of 70-95 mg/dl, 95-120 mg/dl, and ≥120 mg/dl, respectively. Among 481 mild to moderate AS patients, the baseline Vmax (OR 1.79/per 0.5 m/s higher Vmax, 95% CI 1.18-2.70) was associated with rapid progression. Compared to patients with Vmax 2.0-2.5 m/s, the adjusted OR for rapid progression were 2.47, 2.78, and 3.49 for those with Vmax of 2.5-3.0 m/s, 3.0-3.5 m/s, and 3.5-4.0 m/s, respectively. LDL-C and baseline Vmax values were independently associated with progression to severe AS. Conclusion Atherosclerotic risk factors such as LDL-C were significantly associated with the rapid progression in AVS and baseline Vmax was important in the stage of mild to moderate AS.
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Muhsen W, Nestaas E, Hosking J, Latour JM. Echocardiography parameters used in identifying right ventricle dysfunction in preterm infants with early bronchopulmonary dysplasia: A scoping review. Front Pediatr 2023; 11:1114587. [PMID: 37020655 PMCID: PMC10067920 DOI: 10.3389/fped.2023.1114587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/27/2023] [Indexed: 04/07/2023] Open
Abstract
Background Bronchopulmonary Dysplasia (BPD) is a chronic condition that affects preterm infants and is associated with long-term complications. Haemodynamic effects of BPD can lead to right ventricular (RV) dysfunction. Objective To synthesise and map the evidence of echo parameters used in identifying RV dysfunction in the first two weeks-after-birth (WAB) of preterm infants with early BPD. Information Sources This scoping review included the databases: Medline, CINAHL, PubMed, EMBASE, Scopus, ProQuest, Web of Science, Cochrane Library, JBI Evidence-Based Practise and Gray Literature. Search Strategy The search utilised Boolean operators and descriptors registered in Medical Subject Headings. Inclusion and exclusion criteria Included were studies utilising echo parameters to examine RV function in preterm infants with early BPD in the first two WAB. Synthesis of results The results are presented as a map of the extracted findings in a tabular format with a narrative summary. Results Eight studies were included. Differences were observed in the number and timing of echo scans performed in the first two WAB and the variations in the echo parameters used to compare preterm infants with and without early BPD. Only echo scans performed at the end of the first WAB, demonstrated significant differences in the echo parameters measurements between preterm infants with and without BPD. Studies using RV Myocardial Performance Index (MPI) to identify RV-dysfunction associated with early BPD demonstrated similar findings. The Pulsed-Wave Doppler technique identified differences in RV-MPI between preterm infants with and without BPD, while Tissue-Doppler-Imaging did not demonstrate similar results. Speckle tracking can measure strain (S) and strain rate (SR) and diagnose RV-dysfunction. However, the findings of studies that utilised speckle tracking varied. Finally, two of the included studies added blood tests to their diagnostic model of early BPD, which was able to demonstrate significant differences in blood test results between BPD-affected and control preterm infants. Conclusion BPD could adversely affect the myocardium function of the RV; these negative influences can be captured in the first two WAB. However, there are still knowledge gaps regarding the appropriate number, timing and the most suitable echo parameters to assess RV function.
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Affiliation(s)
- Wisam Muhsen
- Faculty of Health, University of Plymouth, Plymouth, United Kingdom
- Neonatal Intensive Care Unit, University Hospitals Plymouth NHS Trust, Plymouth, United Kingdom
- Correspondence: Wisam Muhsen
| | - Eirik Nestaas
- Faculty of Health, University of Plymouth, Plymouth, United Kingdom
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Clinic of Pediatrics andAdolesence, Akershus University Hospital, Nordbyhagen, Norway
| | - Joanne Hosking
- Medical Statistics, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - Jos M. Latour
- Faculty of Health, University of Plymouth, Plymouth, United Kingdom
- Faculty of Health Sciences, Curtin University, Perth, WA, Australia
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Goudot G, Cheng C, Guédon AF, Mirault T, Pedreira O, Dahan A, Wang LZ, Pernot M, Messas E. Methods: Aortic wall deformation assessment by ultrafast ultrasound imaging: Application to bicuspid aortic valve associated aortopathy. Front Physiol 2023; 14:1128663. [PMID: 36935759 PMCID: PMC10020335 DOI: 10.3389/fphys.2023.1128663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Purpose: Aortic maximal rate of systolic distention (MRSD) is a prognosis factor of ascending aorta dilatation with magnetic resonance imaging. Its calculation requires precise continuous tracking of the aortic diameter over the cardiac cycle, which is not feasible by focused ultrasound. We aimed to develop an automatic aortic acquisition using ultrafast ultrasound imaging (UUI) to provide access to the aortic MRSD. Methods: A phased array probe and developed sequences at 2000 frames/s were used. A created interface automatically tracked the anterior and posterior aortic walls over the cardiac cycle. Tissue Doppler allowed a precise estimation of the walls' movements. MRSD was the maximum derivative of the aortic diameter curve over time. To assess its feasibility, 34 patients with bicuspid aortic valve (BAV) and 31 controls were consecutively included to evaluate the BAV-associated aortopathy at the sinus of Valsalva, the tubular ascending aorta, and the aortic arch. Results: UUI acquisitions and the dedicated interface allow tracking of the aortic diameter and calculating the MRSD for the BAV patients and controls (mean age of 34 vs. 43 years, p = 0.120). A trend toward lower deformation in the different aortic segments was observed, as expected. Still, only the MRSD with UUI was significantly different at the sinus of Valsalva in this small series: (0.61 .103.s-1 [0.37-0.72] for BAV patients vs. 0.92 .103.s-1 [0.72-1.02] for controls, p = 0.025). Conclusion: Aortic deformation evaluated with UUI deserves attention with a simple and automated measurement technique that could assess the segmental aortic injury associated with BAV.
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Affiliation(s)
- Guillaume Goudot
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE, PSL Research University, Paris, France
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
- Université Paris Cité, INSERM U970, PARCC, Paris, France
- *Correspondence: Guillaume Goudot,
| | - Charles Cheng
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
| | - Alexis F. Guédon
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
| | - Tristan Mirault
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
- Université Paris Cité, INSERM U970, PARCC, Paris, France
| | - Olivier Pedreira
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE, PSL Research University, Paris, France
| | - Alexandre Dahan
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE, PSL Research University, Paris, France
| | - Louise Z. Wang
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE, PSL Research University, Paris, France
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
| | - Mathieu Pernot
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE, PSL Research University, Paris, France
| | - Emmanuel Messas
- Vascular Medicine Department, Georges-Pompidou European Hospital, AP-HP, Université Paris Cité, Paris, France
- Université Paris Cité, INSERM U970, PARCC, Paris, France
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Koh HW, Pilbrow AP, Tan SH, Zhao Q, Benke PI, Burla B, Torta F, Pickering JW, Troughton R, Pemberton C, Soo WM, Ling LH, Doughty RN, Choi H, Wenk MR, Richards AM, Chan MY. An integrated signature of extracellular matrix proteins and a diastolic function imaging parameter predicts post-MI long-term outcomes. Front Cardiovasc Med 2023; 10:1123682. [PMID: 37123479 PMCID: PMC10132266 DOI: 10.3389/fcvm.2023.1123682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/20/2023] [Indexed: 05/02/2023] Open
Abstract
Background Patients suffering from acute myocardial infarction (AMI) are at risk of secondary outcomes including major adverse cardiovascular events (MACE) and heart failure (HF). Comprehensive molecular phenotyping and cardiac imaging during the post-discharge time window may provide cues for risk stratification for the outcomes. Materials and methods In a prospective AMI cohort in New Zealand (N = 464), we measured plasma proteins and lipids 30 days after hospital discharge and inferred a unified partial correlation network with echocardiographic variables and established clinical biomarkers (creatinine, c-reactive protein, cardiac troponin I and natriuretic peptides). Using a network-based data integration approach (iOmicsPASS+), we identified predictive signatures of long-term secondary outcomes based on plasma protein, lipid, imaging markers and clinical biomarkers and assessed the prognostic potential in an independent cohort from Singapore (N = 190). Results The post-discharge levels of plasma proteins and lipids showed strong correlations within each molecular type, reflecting concerted homeostatic regulation after primary MI events. However, the two molecular types were largely independent with distinct correlation structures with established prognostic imaging parameters and clinical biomarkers. To deal with massively correlated predictive features, we used iOmicsPASS + to identify subnetwork signatures of 211 and 189 data features (nodes) predictive of MACE and HF events, respectively (160 overlapping). The predictive features were primarily imaging parameters, including left ventricular and atrial parameters, tissue Doppler parameters, and proteins involved in extracellular matrix (ECM) organization, cell differentiation, chemotaxis, and inflammation. The network signatures contained plasma protein pairs with area-under-the-curve (AUC) values up to 0.74 for HF prediction in the validation cohort, but the pair of NT-proBNP and fibulin-3 (EFEMP1) was the best predictor (AUC = 0.80). This suggests that there were a handful of plasma proteins with mechanistic and functional roles in predisposing patients to the secondary outcomes, although they may be weaker prognostic markers than natriuretic peptides individually. Among those, the diastolic function parameter (E/e' - an indicator of left ventricular filling pressure) and two ECM proteins, EFEMP1 and follistatin-like 3 (FSTL3) showed comparable performance to NT-proBNP and outperformed left ventricular measures as benchmark prognostic factors for post-MI HF. Conclusion Post-discharge levels of E/e', EFEMP1 and FSTL3 are promising complementary markers of secondary adverse outcomes in AMI patients.
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Affiliation(s)
- Hiromi W.L. Koh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Anna P. Pilbrow
- Department of Medicine, Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Sock Hwee Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Heart Centre, National University Health System, Singapore, Singapore
| | - Qing Zhao
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Peter I. Benke
- Singapore Lipidomics Incubator (SLING), Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Bo Burla
- Singapore Lipidomics Incubator (SLING), Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Federico Torta
- Singapore Lipidomics Incubator (SLING), Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Precision Medicine Translational Research Programme and Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - John W. Pickering
- Department of Medicine, Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Richard Troughton
- Department of Medicine, Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Christopher Pemberton
- Department of Medicine, Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Wern-Miin Soo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Heart Centre, National University Health System, Singapore, Singapore
| | - Lieng Hsi Ling
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Heart Centre, National University Health System, Singapore, Singapore
| | - Robert N. Doughty
- Heart Health Research Group, University of Auckland, Auckland, New Zealand
| | - Hyungwon Choi
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Markus R. Wenk
- Singapore Lipidomics Incubator (SLING), Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Precision Medicine Translational Research Programme and Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - A. Mark Richards
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Medicine, Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
- National University Heart Centre, National University Health System, Singapore, Singapore
- Correspondence: Mark Richards Mark Chan
| | - Mark Y. Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- National University Heart Centre, National University Health System, Singapore, Singapore
- Correspondence: Mark Richards Mark Chan
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You SD, Kim JH, You J. Clinical characteristics and short-term outcomes of multisystem inflammatory syndrome in a country with a high prevalence of KD. Front Pediatr 2023; 11:1088529. [PMID: 36865687 PMCID: PMC9971980 DOI: 10.3389/fped.2023.1088529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/10/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has spread continuously. Multisystem inflammatory syndrome in children (MIS-C), like Kawasaki disease (KD), is a potentially severe illness in children that appears to be a delayed, post-infectious complication of COVID-19. However, based on the relatively low MIS-C prevalence and high KD prevalence in Asian children, the clinical features of MIS-C are not fully recognized, especially after the spread of the Omicron variant. Here, we aimed to identify the clinical characteristics of MIS-C in a country with high KD prevalence. METHODS We retrospectively analyzed 98 children diagnosed with KD and MIS-C admitted to Jeonbuk National University Hospital between January 1, 2021, and October 15, 2022. Twenty-two patients were diagnosed with MIS-C, following CDC diagnostic criteria for MIS-C. We reviewed medical records for clinical features, laboratory findings, and echocardiography. RESULTS Age, height, and weight were higher for patients with MIS-C than for those with KD. Lymphocytes percentage was lower, and the segmented neutrophil percentage was higher in the MIS-C group. The inflammation marker C-reactive protein was higher in the MIS-C group. Prothrombin time was prolonged in the MIS-C group. Albumin level was lower in the MIS-C group. The MIS-C group had lower potassium, phosphorus, chloride, and total calcium. Twenty-five percent of patients diagnosed with MIS-C had positive RT-PCR, and all the patients were N-type SARS-CoV-2 antibody-positive. Albumin ≤3.85 g/dl effectively predicted MIS-C. Regarding echocardiography, the right coronary artery z-score, the absolute value of apical 4-chamber left ventricle longitudinal strain, and the ejection fraction (EF) was significantly lower in the MIS-C group. A month after diagnosis using echocardiographic data, all coronary artery z-scores had reduced significantly. EF and fractional shortening (FS) also improved one month after diagnosis. CONCLUSION Albumin values can differentiate MIS-C and KD. In addition, a decrease in the absolute LV longitudinal strain value, EF, and FS was observed in the MIS-C group using echocardiography. Coronary artery dilatation was not evident at the initial diagnosis; however, a change in coronary artery size, EF, and FS was observed on follow-up echocardiography a month after diagnosis.
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Affiliation(s)
- Sung Doo You
- Department of Pediatrics, Jeonbuk National University Children's Hospital, Jeonju, Korea
| | - Jin Ho Kim
- Department of Pediatrics, Jeonbuk National University Children's Hospital, Jeonju, Korea
| | - Jihye You
- Department of Pediatrics, Jeonbuk National University Children's Hospital, Jeonju, Korea.,Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, Korea
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Fletcher AJ, Lapidaire W, Leeson P. Machine Learning Augmented Echocardiography for Diastolic Function Assessment. Front Cardiovasc Med 2021; 8:711611. [PMID: 34422935 PMCID: PMC8371749 DOI: 10.3389/fcvm.2021.711611] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/13/2021] [Indexed: 12/18/2022] Open
Abstract
Cardiac diastolic dysfunction is prevalent and is a diagnostic criterion for heart failure with preserved ejection fraction—a burgeoning global health issue. As gold-standard invasive haemodynamic assessment of diastolic function is not routinely performed, clinical guidelines advise using echocardiography measures to determine the grade of diastolic function. However, the current process has suboptimal accuracy, regular indeterminate classifications and is susceptible to confounding from comorbidities. Advances in artificial intelligence in recent years have created revolutionary ways to evaluate and integrate large quantities of cardiology data. Imaging is an area of particular strength for the sub-field of machine-learning, with evidence that trained algorithms can accurately discern cardiac structures, reliably estimate chamber volumes, and output systolic function metrics from echocardiographic images. In this review, we present the emerging field of machine-learning based echocardiographic diastolic function assessment. We summarise how machine-learning has made use of diastolic parameters to accurately differentiate pathology, to identify novel phenotypes within diastolic disease, and to grade diastolic function. Perspectives are given about how these innovations could be used to augment clinical practice, whilst areas for future investigation are identified.
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Affiliation(s)
- Andrew J Fletcher
- Oxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.,Department of Cardiac Physiology, Royal Papworth Hospital National Health Service Foundation Trust, Cambridge, United Kingdom
| | - Winok Lapidaire
- Oxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Paul Leeson
- Oxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
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Wooten SV, Moestl S, Chilibeck P, Alvero Cruz JR, Mittag U, Tank J, Tanaka H, Rittweger J, Hoffmann F. Age- and Sex-Differences in Cardiac Characteristics Determined by Echocardiography in Masters Athletes. Front Physiol 2021; 11:630148. [PMID: 33536945 PMCID: PMC7848176 DOI: 10.3389/fphys.2020.630148] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/29/2020] [Indexed: 01/20/2023] Open
Abstract
Background Cardiac function and morphology are known to differ between men and women. Sex differences seen with echocardiography have not been studied systematically in masters athletes. Purpose To evaluate sex differences in cardiac structure, function and left ventricular (LV) systolic global longitudinal strain among masters athletes. Methods This cross-sectional study comprises of 163 masters athletes (M = 109, 60 ± 12 years; F = 55, 57 ± 12 years, range 36–91 years) who participated at the 23rd World Masters Athletics Championship held in Málaga, Spain. All athletes underwent state-of-the-art echocardiography including cardiac function, morphology, strain and hemodynamic assessment. Results Left ventricular mass was higher in male than in female athletes (174 ± 44 vs. 141 ± 36 g, p < 0.01) due to greater end-diastolic intraventricular septal, LV posterior wall and LV basal diameter. However, LV mass index did not differ between the groups. End-diastolic LV volume and right ventricular area, both indexed to body-surface-area, were greater in men than in women (52.8 ± 11.0 vs. 46.1 ± 8.5 ml/m2, p < 0.01, 9.5 ± 2.4 vs. 8.1 ± 1.7 cm2/m2, p < 0.01). In contrast, women had higher LV systolic global longitudinal strain (-20.2 ± 2.6 vs. -18.8 ± 2.6%, p < 0.01) and LV outflow tract flow velocity (75.1 ± 11.1 vs. 71.2 ± 11.1 cm/s, p = 0.04). Systolic and diastolic blood pressure, LV ejection fraction, and stroke volume index were not different between sexes. Conclusion Cardiac sex differences are present even among masters athletes. Lifelong exercise training does not appear to exasperate morphological difference to a point of cardiac risk or dysfunction in both male and female athletes.
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Affiliation(s)
- Savannah V Wooten
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States
| | - Stefan Moestl
- Institute of Aerospace Medicine, German Aerospace Center, University of Cologne, Cologne, Germany
| | - Phil Chilibeck
- Physical Activity Complex, University of Saskatchewan College of Kinesiology, Saskatoon, SK, Canada
| | | | - Uwe Mittag
- Institute of Aerospace Medicine, German Aerospace Center, University of Cologne, Cologne, Germany
| | - Jens Tank
- Institute of Aerospace Medicine, German Aerospace Center, University of Cologne, Cologne, Germany
| | - Hirofumi Tanaka
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center, University of Cologne, Cologne, Germany
| | - Fabian Hoffmann
- Institute of Aerospace Medicine, German Aerospace Center, University of Cologne, Cologne, Germany.,Department of Cardiology, University Hospital Cologne, Cologne, Germany
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Brouwer E, Knol R, Hahurij ND, Hooper SB, Te Pas AB, Roest AAW. Ductal Flow Ratio as Measure of Transition in Preterm Infants After Birth: A Pilot Study. Front Pediatr 2021; 9:668744. [PMID: 34350143 PMCID: PMC8326397 DOI: 10.3389/fped.2021.668744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/22/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Cardiovascular changes during the transition from intra- to extrauterine life, alters the pressure gradient across the ductus arteriosus (DA). DA flow ratio (R-L/L-R) has been suggested to reflect the infant's transitional status and could potentially predict neonatal outcomes after preterm birth. Aim: Determine whether DA flow ratio correlates with oxygenation parameters in preterm infants at 1 h after birth. Methods: Echocardiography was performed in preterm infants born <32 weeks gestational age (GA), as part of an ancillary study. DA flow was measured at 1 h after birth. DA flow ratio was correlated with FiO2, SpO2, and SpO2/FiO2 (SF) ratio. The DA flow ratio of infants receiving physiological-based cord clamping (PBCC) or time-based cord clamping (TBCC) were compared. Results: Measurements from 16 infants were analysed (median [IQR] GA 29 [27-30] weeks; birthweight 1,176 [951-1,409] grams). R-L DA shunting was 16 [17-27] ml/kg/min and L-R was 110 [81-124] ml/kg/min. The DA flow ratio was 0.18 [0.11-0.28], SpO2 94 [93-96]%, FiO2 was 23 [21-28]% and SF ratio 4.1 [3.3-4.5]. There was a moderate correlation between DA flow ratio and SpO2 [correlation coefficient (CC) -0.415; p = 0.110], FiO2 (CC 0.384; p = 0.142) and SF ratio (CC -0.356; p = 0.175). There were no differences in DA flow measurements between infants where PBBC or TBCC was performed. Conclusion: In this pilot study we observed a non-significant positive correlation between DA flow ratio at 1 h after birth and oxygenation parameters in preterm infants.
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Affiliation(s)
- Emma Brouwer
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, Netherlands
| | - Ronny Knol
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, Netherlands.,Division of Neonatology, Department of Paediatrics, Erasmus University Medical Centre, Rotterdam, Netherlands
| | - Nathan D Hahurij
- Division of Paediatric Cardiology, Department of Paediatrics, Leiden University Medical Centre, Leiden, Netherlands
| | - Stuart B Hooper
- The Ritchie Centre, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Centre, Leiden, Netherlands
| | - Arno A W Roest
- Division of Paediatric Cardiology, Department of Paediatrics, Leiden University Medical Centre, Leiden, Netherlands
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Sharma H, Liu B, Mahmoud-Elsayed H, Myerson SG, Steeds RP. Multimodality Imaging in Secondary Mitral Regurgitation. Front Cardiovasc Med 2020; 7:546279. [PMID: 33415127 PMCID: PMC7782243 DOI: 10.3389/fcvm.2020.546279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 11/16/2020] [Indexed: 01/11/2023] Open
Abstract
Secondary mitral regurgitation (sMR) is characterized by left ventricular (LV) dilatation or dysfunction, resulting in failure of mitral leaflet coaptation. sMR complicates up to 35% of ischaemic cardiomyopathies (1) and 57% of dilated cardiomyopathies (2). Due to the prevalence of coronary artery disease worldwide, ischaemic cardiomyopathy is the most frequently encountered cause of sMR in clinical practice. Although mortality from cardiovascular disease has gradually fallen in Western countries, severe sMR remains an independent predictor of mortality (3) and hospitalization for heart failure (4). The presence of even mild sMR following acute MI reduces long-term survival free of major adverse events (1). Such adverse outcomes worsen as the severity of sMR increases, due to a cycle in which LV remodeling begets sMR and vice versa. Current guidelines do not recommend invasive treatment of the sMR alone as a first-line approach, due to the paucity of evidence supporting improvement in clinical outcomes. Furthermore, a lack of international consensus on the thresholds that define severe sMR has resulted in confusion amongst clinicians determining whether intervention is warranted (5, 6). The recent Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation (COAPT) trial (7) assessing the effectiveness of transcatheter mitral valve repair is the first study to demonstrate mortality benefit from correction of sMR and has reignited interest in identifying patients who would benefit from mitral valve intervention. Multimodality imaging, including echocardiography and cardiovascular magnetic resonance (CMR), plays a key role in helping to diagnose, quantify, monitor, and risk stratify patients for surgical and transcatheter mitral valve interventions.
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Affiliation(s)
- Harish Sharma
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- Department of Cardiology, Queen Elizabeth Hospital, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
| | - Boyang Liu
- Department of Cardiology, Queen Elizabeth Hospital, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
| | - Hani Mahmoud-Elsayed
- Department of Cardiology, Queen Elizabeth Hospital, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
- Department of Cardiology, Al-Nas Hospital, Cairo, Egypt
| | - Saul G. Myerson
- Department of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
| | - Richard P. Steeds
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
- Department of Cardiology, Queen Elizabeth Hospital, University Hospitals Birmingham National Health Service (NHS) Foundation Trust, Birmingham, United Kingdom
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