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Barker J, Li X, Kotb A, Mavilakandy A, Antoun I, Thaitirarot C, Koev I, Man S, Schlindwein FS, Dhutia H, Chin SH, Tyukin I, Nicolson WB, Ng GA. Artificial intelligence for ventricular arrhythmia capability using ambulatory electrocardiograms. EUROPEAN HEART JOURNAL. DIGITAL HEALTH 2024; 5:384-388. [PMID: 38774363 PMCID: PMC11104464 DOI: 10.1093/ehjdh/ztae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 05/24/2024]
Abstract
Aims European and American clinical guidelines for implantable cardioverter defibrillators are insufficiently accurate for ventricular arrhythmia (VA) risk stratification, leading to significant morbidity and mortality. Artificial intelligence offers a novel risk stratification lens through which VA capability can be determined from the electrocardiogram (ECG) in normal cardiac rhythm. The aim of this study was to develop and test a deep neural network for VA risk stratification using routinely collected ambulatory ECGs. Methods and results A multicentre case-control study was undertaken to assess VA-ResNet-50, our open source ResNet-50-based deep neural network. VA-ResNet-50 was designed to read pyramid samples of three-lead 24 h ambulatory ECGs to decide whether a heart is capable of VA based on the ECG alone. Consecutive adults with VA from East Midlands, UK, who had ambulatory ECGs as part of their NHS care between 2014 and 2022 were recruited and compared with all comer ambulatory electrograms without VA. Of 270 patients, 159 heterogeneous patients had a composite VA outcome. The mean time difference between the ECG and VA was 1.6 years (⅓ ambulatory ECG before VA). The deep neural network was able to classify ECGs for VA capability with an accuracy of 0.76 (95% confidence interval 0.66-0.87), F1 score of 0.79 (0.67-0.90), area under the receiver operator curve of 0.8 (0.67-0.91), and relative risk of 2.87 (1.41-5.81). Conclusion Ambulatory ECGs confer risk signals for VA risk stratification when analysed using VA-ResNet-50. Pyramid sampling from the ambulatory ECGs is hypothesized to capture autonomic activity. We encourage groups to build on this open-source model. Question Can artificial intelligence (AI) be used to predict whether a person is at risk of a lethal heart rhythm, based solely on an electrocardiogram (an electrical heart tracing)? Findings In a study of 270 adults (of which 159 had lethal arrhythmias), the AI was correct in 4 out of every 5 cases. If the AI said a person was at risk, the risk of lethal event was three times higher than normal adults. Meaning In this study, the AI performed better than current medical guidelines. The AI was able to accurately determine the risk of lethal arrhythmia from standard heart tracings for 80% of cases over a year away-a conceptual shift in what an AI model can see and predict. This method shows promise in better allocating implantable shock box pacemakers (implantable cardioverter defibrillators) that save lives.
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Affiliation(s)
- Joseph Barker
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Kettering General Hospital, University Hospitals of Northamptonshire NHS Group, Rothwell Rd, Kettering NN16 8UZ, UK
- National Institute for Health Research, Leicester Biomedical Research Centre, Groby Road, Glenfield Hospital, Leicester LE3 9QP, UK
- National Heart and Lung Institute, Imperial College London, Du Cane Road, Hammersmith Hospital, London W12 0HS, UK
| | - Xin Li
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- School of Engineering, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - Ahmed Kotb
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Akash Mavilakandy
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Ibrahim Antoun
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Kettering General Hospital, University Hospitals of Northamptonshire NHS Group, Rothwell Rd, Kettering NN16 8UZ, UK
| | - Chokanan Thaitirarot
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
| | - Ivelin Koev
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Sharon Man
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Fernando S Schlindwein
- National Institute for Health Research, Leicester Biomedical Research Centre, Groby Road, Glenfield Hospital, Leicester LE3 9QP, UK
- School of Engineering, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - Harshil Dhutia
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Shui Hao Chin
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - Ivan Tyukin
- Department of Mathematics, King’s College London, Strand Campus, Strand, London WC2R 2LS, UK
| | - William B Nicolson
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
| | - G Andre Ng
- Department of Cardiovascular Sciences, University of Leicester, Glenfield Hospital, Groby Road, Leicester LE3 9QP, UK
- Cardiology Department, Glenfield Hospital, University Hospitals of Leicester, Groby Road, Leicester LE3 9QP, UK
- National Institute for Health Research, Leicester Biomedical Research Centre, Groby Road, Glenfield Hospital, Leicester LE3 9QP, UK
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2
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MacLachlan H, Antonakaki A, Bhatia R, Fyazz S, Chatrath N, Androulakis E, Marawaha S, Basu J, Miles C, Dhutia H, Zaidi A, Chandra N, Sheikh N, Gati S, Malhotra A, Finocchiaro G, Sharma S, Papadakis M. Prevalence and Clinical Significance of Electrocardiographic Complete Right Bundle Branch Block in Young Individuals. Eur J Prev Cardiol 2024:zwae082. [PMID: 38412448 DOI: 10.1093/eurjpc/zwae082] [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: 12/28/2023] [Revised: 02/17/2024] [Accepted: 02/23/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND AND AIMS There is limited information on the clinical significance of complete right bundle branch block (CRBBB) in young individuals. The aim of this study was to determine the prevalence and significance of CRBBB in a large cohort of young individuals aged 14-35 years old. METHODS From 2008 to 2018, 104,369 consecutive individuals underwent a cardiovascular assessment with a health questionnaire, electrocardiogram, clinical consultation, and selective echocardiography. Follow-up was obtained via direct telephone consultations. Mean follow-up was 7.3 ± 2.7 years. RESULTS CRBBB was identified in 154 (0.1%) individuals and was more prevalent in males compared with females (0.20% vs. 0.06%; p<0.05) and in athletes compared with non-athletes (0.25% vs. 0.14%; p<0.05). CRBBB-related cardiac conditions were identified in 7 (5%) individuals (4 with atrial septal defect, 1 with Brugada syndrome, 1 with progressive cardiac conduction disease and 1 with atrial fibrillation). Pathology was more frequently identified in individuals with non-isolated CRBBB compared with individuals with isolated CRBBB (14% vs 1%; p < 0.05) and in individuals with a QRS duration of ≥130 milliseconds (ms) compared with individuals with a QRS of <130ms (10% vs 1%; p<0.05). CONCLUSION The prevalence of CRBBB in young individuals was 0.1% and was more prevalent in males and athletes. CRBBB-related conditions were identified in 5% of individuals and were more common in individuals with non-isolated CRBBB and more pronounced intraventricular conduction delay (QRS duration of ≥130ms). Secondary evaluation should be considered for young individuals with CRBBB with symptoms, concerning family history, additional electrocardiographic anomalies or significant QRS prolongation (≥130ms).
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Affiliation(s)
- H MacLachlan
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - A Antonakaki
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - R Bhatia
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - S Fyazz
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - N Chatrath
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - E Androulakis
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - S Marawaha
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - J Basu
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - C Miles
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - H Dhutia
- Department of Cardiology, Glenfield Hospital, Leicester, UK
| | - A Zaidi
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
- Department of Cardiology, University Hospital of Wales, Cardiff, UK
| | - N Chandra
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
- Department of Cardiology, Frimley Park Hospital, London, UK
| | - N Sheikh
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
- Department of Cardiology, Guy's and St Thomas's Hospital, London, UK
| | - S Gati
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
- Department of Cardiology, Royal Brompton & Harefield NHS Foundation Trust, London, UK
| | - A Malhotra
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
- Institute of Sport, Manchester Metropolitan University and University of Manchester, Manchester, UK
| | - G Finocchiaro
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - S Sharma
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
| | - M Papadakis
- Cardiovascular Clinical Academic Group, St George's, University of London, London, UK
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Bhatia RT, Forster J, Ackrill M, Chatrath N, Finocchiaro G, Fyyaz S, MacLachlan H, Malhotra A, Marwaha S, Papadakis M, Ring L, Sharma S, Oxborough D, Rakhit D. Coronary artery anomalies and the role of echocardiography in pre-participation screening of athletes: a practical guide. Echo Res Pract 2024; 11:5. [PMID: 38383464 PMCID: PMC10882860 DOI: 10.1186/s44156-024-00041-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 01/26/2024] [Indexed: 02/23/2024] Open
Abstract
Transthoracic echocardiography is an essential and widely available diagnostic tool for assessing individuals reporting cardiovascular symptoms, monitoring those with established cardiac conditions and for preparticipation screening of athletes. While its use is well-defined in hospital and clinic settings, echocardiography is increasingly being utilised in the community, including in the rapidly expanding sub-speciality of sports cardiology. There is, however, a knowledge and practical gap in the challenging area of the assessment of coronary artery anomalies, which is an important cause of sudden cardiac death, often in asymptomatic athletic individuals. To address this, we present a step-by-step guide to facilitate the recognition and assessment of anomalous coronary arteries using transthoracic echocardiography at the bedside; whilst recognising the importance of performing dedicated cross-sectional imaging, specifically coronary computed tomography (CTCA) where clinically indicated on a case-by-case basis. This guide is intended to be useful for echocardiographers and physicians in their routine clinical practice whilst recognising that echocardiography remains a highly skill-dependent technique that relies on expertise at the bedside.
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Affiliation(s)
- Raghav T Bhatia
- Hull University Teaching Hospitals NHS Trust, Kingston-Upon-Hull, UK
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Jan Forster
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | | | - Nikhil Chatrath
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Gherardo Finocchiaro
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Saad Fyyaz
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Hamish MacLachlan
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Aneil Malhotra
- Institute of Sport, Manchester Metropolitan University and University of Manchester, Manchester, UK
| | - Sarandeep Marwaha
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Michael Papadakis
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Liam Ring
- West Suffolk Hospital NHS Trust, Bury Saint Edmunds, UK
| | - Sanjay Sharma
- Cardiovascular Clinical Academic Group and Cardiology Research Centre, St. George's, University of London, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - David Oxborough
- Research Institute for Sports and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - Dhrubo Rakhit
- University Hospital Southampton NHS Foundation Trust, Southampton, UK.
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4
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Finocchiaro G, Westaby J, Sheppard MN, Papadakis M, Sharma S. Sudden Cardiac Death in Young Athletes: JACC State-of-the-Art Review. J Am Coll Cardiol 2024; 83:350-370. [PMID: 38199713 DOI: 10.1016/j.jacc.2023.10.032] [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: 08/10/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 01/12/2024]
Abstract
Athletes epitomize the healthiest segment of society. Despite this premise, sudden cardiac death may occur in apparently healthy athletes, attracting significant attention not only in the medical community but also in laypersons and media. The incidence of sudden cardiac death is variably reported, and epidemiological burden differs among cohorts. Athletes appear to be at risk of developing fatal arrhythmias when harboring a quiescent cardiac disorder. Primary cardiomyopathies, ion channelopathies, and coronary artery anomalies are prevalent causes in young individuals. Cardiac assessment of athletes can be challenging because these individuals exhibit a plethora of electrical, structural, and functional physiological changes that overlap with cardiac pathology. A diagnosis of cardiac disease in a young athlete is not necessarily an indication to terminate competition and sports participation. International guidelines, traditionally focused on disqualification of individuals with cardiac disease, have recently adopted a more liberal attitude, based on a careful assessment of the risk and on a shared-decision making approach.
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Affiliation(s)
- Gherardo Finocchiaro
- Cardiovascular Sciences Research Centre, St George's, University of London, London, United Kingdom
| | - Joseph Westaby
- Cardiovascular Sciences Research Centre, St George's, University of London, London, United Kingdom
| | - Mary N Sheppard
- Cardiovascular Sciences Research Centre, St George's, University of London, London, United Kingdom
| | - Michael Papadakis
- Cardiovascular Sciences Research Centre, St George's, University of London, London, United Kingdom
| | - Sanjay Sharma
- Cardiovascular Sciences Research Centre, St George's, University of London, London, United Kingdom.
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5
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Abela M, Yamagata K, Bonello J, Xuereb S, Borg L, Xuereb R, Soler JF, Camilleri W, Abela E, Callus A, Farrugia M, Sapiano K, Felice T, Burg M, Sammut MA, Grech V, Papadakis M. BEAT-IT: A de-novo cardiac screening programme in Maltese adolescents. Hellenic J Cardiol 2023:S1109-9666(23)00183-5. [PMID: 37743018 DOI: 10.1016/j.hjc.2023.09.012] [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: 06/14/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023] Open
Abstract
AIMS Sudden cardiac death (SCD) in young individuals is often unexpected, provoking substantial emotional stress for family and friends of the deceased. Cardiac screening may identify individuals who harbour disorders linked to SCD. The feasibility and diagnostic yield of a nationwide cardiac screening programme in adolescents has never been explored. METHODS All individuals eligible for cardiac screening (students aged 15 years) were systematically invited to enrol. Students were provided with a health questionnaire. ECGs were acquired at school. A physician led consultation was carried out on site. Participants with an abnormal screen were then referred for secondary evaluation to the nation's tertiary centre. Feasibility criteria included a) participation rate >60%, b) adherence to secondary evaluation >80%, and c) cost per individual screened equating to <€100. The diagnostic yield was also evaluated. RESULTS At the end of enrolment, 2708 students gave consent (mean 15 years, 50.4% male), equating to 67.9% of the eligible cohort. Overall, 109 participants (4.0%) were referred for further evaluation. An abnormal electrocardiogram (ECG) was the most common reason for referral (3.7%). Fifteen individuals (0.6%) were diagnosed with a cardiac condition. Nine (0.3%) had a condition linked to SCD (n = 1 Long-QT syndrome, n = 1 Hypertrophic Cardiomyopathy, n = 5 Wolff-Parkinson White, n = 2 coronary anomalies). The yield was similar in athletes and non-athletes (p = 0.324). The cost per cardiac individual screened equated to €51.15. CONCLUSION A nationwide systematic cardiac screening programme for adolescent athletes and non-athletes is feasible and cost-efficient, provided that responsible centres have the appropriate infrastructure.
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Affiliation(s)
- Mark Abela
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta; Medical School, University of Malta, Malta; St George's, University of London, London, United Kingdom.
| | | | - John Bonello
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Sara Xuereb
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Lisa Borg
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Rachel Xuereb
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | | | | | - Estelle Abela
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Adrian Callus
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Maria Farrugia
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Karl Sapiano
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Tiziana Felice
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Melanie Burg
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Mark A Sammut
- Department of Cardiology, Mater Dei Hospital, Tal-Qroqq, Malta
| | - Victor Grech
- Medical School, University of Malta, Malta; Department of Paediatrics, Mater Dei Hospital, Tal-Qroqq, Malta
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6
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Porta-Sánchez A, Priori SG. Genetic Abnormalities of the Sinoatrial Node and Atrioventricular Conduction. Cardiol Clin 2023; 41:333-347. [PMID: 37321685 DOI: 10.1016/j.ccl.2023.03.014] [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] [Indexed: 06/17/2023]
Abstract
The peculiar electrophysiological properties of the sinoatrial node and the cardiac conduction system are key components of the normal physiology of cardiac impulse generation and propagation. Multiple genes and transcription factors and metabolic proteins are involved in their development and regulation. In this review, we have summarized the genetic underlying causes, key clinical findings, and the latest available clinical evidence. We will discuss clinical diagnosis and management of the genetic conditions associated with conduction disorders that are more prevalent in clinical practice, for this reason, very rare genetic diseases presenting sinus node or cardiac conduction system abnormalities are not discussed.
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Affiliation(s)
- Andreu Porta-Sánchez
- Cardiología Molecular, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid, Spain; Departamento de Cardiología, Unidad de Arritmias, Hospital Universitario Quironsalud Madrid, Spain; Departamento de Medicina, Universidad Europea de Madrid, Spain
| | - Silvia Giuliana Priori
- Cardiología Molecular, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid, Spain; Molecular Medicine Department, University of Pavia, Italy; Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy.
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7
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Abela M, Grech N, Degiorgio S, Grech V, Adrian Sammut M. Isolated short PR interval in adolescent athletes and non-athletes: Should we worry? Hellenic J Cardiol 2023; 72:65-66. [PMID: 36868477 DOI: 10.1016/j.hjc.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 03/05/2023] Open
Affiliation(s)
- Mark Abela
- Malta Medical School, University of Malta, Malta; Department of Cardiology, Mater Dei Hospital, Malta.
| | - Neil Grech
- Department of Cardiology, Mater Dei Hospital, Malta
| | | | - Victor Grech
- Department of Paediatrics, Mater Dei Hospital, Malta
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8
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Li L, Yu K, Mo Z, Yang K, Chen F, Yang J. In Vitro Neurotrophic Properties and Structural Characterization of a New Polysaccharide LTC-1 from Pyrola corbieri Levl (Luticao). Molecules 2023; 28:1544. [PMID: 36838533 PMCID: PMC9964326 DOI: 10.3390/molecules28041544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
Pyrola corbieri Levl has been used to strengthen bones and nourish the kidney (the kidney governs the bone and is beneficial to the brain) by the local Miao people in China. However, the functional components and neurotrophic activity have not been reported. A new acidic homogeneous heteropolysaccharide named LTC-1 was obtained and characterized by periodate oxidation, Smith degradation, partial acid hydrolysis, GC-MS spectrometry, methylation analysis, and Fourier transform infrared spectroscopy, and its molecular weight was 3239 Da. The content of mannuronic acid (Man A) in LTC-1 was 46%, and the neutral sugar was composed of L-rhamnose (L-Rha), L-arabinose (L-Ara), D-xylose (D-Xyl), D-mannose (D-Man), D-glucose (D-Glc) and D-galactose (D-Gal) with a molar ratio of 1.00:3.63:0.86:1.30:6.97:1.30. The main chain of LTC-1 was composed of Glc, Gal, Man, Man A and the branched chain Ara, Glc, Gal. The terminal residues were composed of Glc and Gal. The main chain and branched chains were linked by (1→5)-linked-Ara, (1→3)-linked-Glc, (1→4)-linked-Glc, (1→6)-linked-Glc, (1→3)-linked-Gal, (1→6)-linked-Gal, (1→3, 6)-linked-Man and ManA. Meanwhile, neurotrophic activity was evaluated through PC12 and primary hippocampal neuronal cell models. LTC-1 exhibited neurotrophic activity in a concentration-dependent manner, which significantly induced the differentiation of PC12 cells, promoted the neurite outgrowth of PC12 cells, enhanced the formation of the web architecture of dendrites, and increased the density of dendritic spines in hippocampal neurons and the expression of PSD-95. These results displayed significant neurotrophic factor-like activity of LTC-1, which suggests that LTC-1 is a potential treatment option for neurodegenerative diseases.
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Affiliation(s)
- Liangqun Li
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Kangkang Yu
- School of Life Science, Shanghai University, Shanghai 200444, China
| | | | - Keling Yang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Fuxue Chen
- School of Life Science, Shanghai University, Shanghai 200444, China
| | - Juan Yang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
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9
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Abbas R, Abbas A, Khan TK, Sharjeel S, Amanullah K, Irshad Y. Sudden Cardiac Death in Young Individuals: A Current Review of Evaluation, Screening and Prevention. J Clin Med Res 2023; 15:1-9. [PMID: 36755763 PMCID: PMC9881489 DOI: 10.14740/jocmr4823] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/04/2023] [Indexed: 01/26/2023] Open
Abstract
Sudden cardiac death (SCD) can affect all age groups, including young persons. While less common in the age < 35 population, the occurrence of SCD in the young raises concern, with multiple possible etiologies and often unanswered questions. While coronary artery disease is the leading cause in those > 35 years of age, the younger population faces a different subset of pathologies associated with SCD, including arrhythmias and cardiomyopathies. The tragic nature of SCD in the young entails that we explore and implement available screening methods for this population, and perform the necessary investigations such as electrocardiography (ECG) and echocardiography. In this review, we not only explore the vast etiology associated with SCD in those age < 35, but emphasize evaluation methods, who is at risk, and delve into screening of SCD in potential victims and their family members, in an attempt to prevent this traumatic event. Future research must work towards establishing preventative measures in order to reduce SCD, particularly unexplained SCD in the young.
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Affiliation(s)
- Ramsha Abbas
- Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, KY, USA,Corresponding Author: Ramsha Abbas, Institute of Molecular Cardiology, Department of Medicine, University of Louisville, Louisville, KY, USA.
| | - Aiza Abbas
- Medical College, Aga Khan University, Karachi, Sindh, Pakistan
| | - Talha Kamran Khan
- Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Salal Sharjeel
- Dow Medical College, Dow University of Health Sciences, Karachi, Sindh, Pakistan
| | - Khadija Amanullah
- Medical College, National University of Medical Sciences, Rawalpindi, Punjab, Pakistan
| | - Yusra Irshad
- Division of Infectious Diseases, Department of Medicine, University of Louisville, Louisville, KY, USA
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Mancone M, Maestrini V, Fusto A, Adamo F, Scarparo P, D’Ambrosi A, Cinque A, Gatto MC, Salvi N, Agnes G, Pucci M, Birtolo LI, Marruncheddu L, Genuini I, De Lazzari C, Severino P, Giunta G, Lavalle C, Fegatelli DA, Vestri A, Fedele F. ECG evaluation in 11 949 Italian teenagers: results of screening in secondary school. J Cardiovasc Med (Hagerstown) 2022; 23:98-105. [PMID: 34570036 PMCID: PMC8855949 DOI: 10.2459/jcm.0000000000001259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/04/2021] [Accepted: 08/29/2021] [Indexed: 01/02/2023]
Abstract
AIM There is lack of evidence regarding the screening role of ECG for sudden cardiac death (SCD) prevention. Our aim was to evaluate the prevalence of ECG abnormalities among teenagers according to sport participation and competitive status. METHODS Eleven thousand nine hundred and forty-nine Italian pupils from 179 secondary schools (13-19 years) were consecutively enrolled. ECG abnormalities were divided into minor and major. Medical history, clinical examination and sport activity information were acquired. Further evaluations were suggested in case of major ECG abnormalities. Follow-up was performed at 2 years. RESULTS N = 1945 (16%) pupils had ECG abnormalities. Major ECG abnormalities were detected in 13% of the cohort, minor in 34%. ECG abnormalities were more common in nonathletes compared with athletes. A diagnosis of cardiac disease was reached in 25 (1.6%) of the pupils with major ECG abnormalities. CONCLUSION ECG abnormalities are common among young populations and more prevalent in nonathletes. Among pupils with major ECG abnormalities 1.6% had a cardiac disease diagnosis. Our results are in line with the data supporting ECG screening in the general young population.
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Affiliation(s)
- Massimo Mancone
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Viviana Maestrini
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Antonio Fusto
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Francesco Adamo
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Paola Scarparo
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Alessandra D’Ambrosi
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Alessandra Cinque
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Maria Chiara Gatto
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Nicolò Salvi
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Gianluca Agnes
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Mariateresa Pucci
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Lucia Ilaria Birtolo
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Laura Marruncheddu
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Igino Genuini
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | | | - Paolo Severino
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Giuseppe Giunta
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Carlo Lavalle
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
| | - Danilo Alunni Fegatelli
- Department of Public Health and Infections Disease, Sapienza University of Rome, Rome, Italy
| | - Annarita Vestri
- Department of Public Health and Infections Disease, Sapienza University of Rome, Rome, Italy
| | - Francesco Fedele
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome
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11
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Albiński M, Saubade M, Menafoglio A, Meyer P, Capelli B, Perrin T, Trachsel L, Hagemeyer D, Casagrande D, Wilhelm M, Benaim C, Pirrello T, Albrecht S, Schmied C, Mivelaz Y, Tercier S, Baggish A, Gabus V. Diagnostic yield and cost analysis of electrocardiographic screening in Swiss paediatric athletes. J Sci Med Sport 2021; 25:281-286. [PMID: 34895837 DOI: 10.1016/j.jsams.2021.11.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Athletes performing sports on high level are at increased risk for sudden cardiac death. This includes paediatric athletes, even though data on screening strategies in this age group remain scarce. This study aimed to assess electrocardiogram interpretation criteria in paediatric athletes and to evaluate the cost of screening. METHODS National, multicentre, retrospective, observational study on 891 athletes of paediatric age (<18 years) evaluated by history, physical examination and 12-lead electrocardiogram. The primary outcome measure was abnormal electrocardiogram findings according to the International Recommendations for Electrographic Interpretation in Athletes. The secondary outcome measure was cost of screening. RESULTS 19 athletes (2.1%) presented abnormal electrocardiogram findings requiring further investigations, mainly abnormal T-wave inversion. These 19 athletes were predominantly males, performing endurance sports with a mean volume of 10 weekly hours for a mean duration of 6 years of training. Further investigations did not identify any relevant pathology. All athletes were cleared for competition with regular follow-up. Total costs of the screening were 108,860 USD (122 USD per athlete). CONCLUSIONS Our study using the International Recommendations for Electrographic Interpretation in Athletes identified a low count of abnormal findings in paediatric athletes, yet raising substantially the cost of screening. Hence, the utility of electrocardiogram-inclusive screening of paediatric athletes remains to be elucidated by longitudinal data.
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Affiliation(s)
- M Albiński
- Division of Paediatrics, Lausanne University Hospital, Switzerland.
| | - M Saubade
- Centre of Sports Medicine, Division of Physical and Rehabilitation Medicine, Lausanne University Hospital, Switzerland; Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Switzerland; SportAdo Centre, Department of Woman-Mother-Child, Lausanne University Hospital, Switzerland
| | - A Menafoglio
- Department of Cardiology, San Giovanni Hospital Bellinzona, Switzerland
| | - P Meyer
- Service of Cardiology, University Hospital Geneva, Switzerland
| | - B Capelli
- Department of Cardiology, Cardiocentro Ticino, Switzerland
| | - T Perrin
- Department of Cardiology, Inselspital, University Hospital Bern, Bern University, Switzerland
| | - L Trachsel
- Department of Cardiology, Inselspital, University Hospital Bern, Bern University, Switzerland
| | - D Hagemeyer
- Department of Cardiology, Inselspital, University Hospital Bern, Bern University, Switzerland
| | - D Casagrande
- Department of Cardiology, Inselspital, University Hospital Bern, Bern University, Switzerland
| | - M Wilhelm
- Department of Cardiology, Inselspital, University Hospital Bern, Bern University, Switzerland
| | - C Benaim
- Centre of Sports Medicine, Division of Physical and Rehabilitation Medicine, Lausanne University Hospital, Switzerland
| | - T Pirrello
- Swiss Federal Institute of Sports, Switzerland
| | - S Albrecht
- Swiss Federal Institute of Sports, Switzerland
| | - C Schmied
- Department of Cardiology, University Heart Centre Zurich, University of Zurich, Switzerland
| | - Y Mivelaz
- Paediatric Cardiology Unit, Woman-Mother-Child Department, Lausanne University Hospital, Switzerland
| | - S Tercier
- SportAdo Centre, Department of Woman-Mother-Child, Lausanne University Hospital, Switzerland
| | - A Baggish
- Division of Cardiology, Massachusetts General Hospital, United States of America
| | - V Gabus
- Department of Cardiology, Lausanne University Hospital, Switzerland
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12
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Porta-Sánchez A, Priori SG. Genetic Abnormalities of the Sinoatrial Node and Atrioventricular Conduction. Card Electrophysiol Clin 2021; 13:625-639. [PMID: 34689891 DOI: 10.1016/j.ccep.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The peculiar electrophysiological properties of the sinoatrial node and the cardiac conduction system are key components of the normal physiology of cardiac impulse generation and propagation. Multiple genes and transcription factors and metabolic proteins are involved in their development and regulation. In this review, we have summarized the genetic underlying causes, key clinical findings, and the latest available clinical evidence. We will discuss clinical diagnosis and management of the genetic conditions associated with conduction disorders that are more prevalent in clinical practice, for this reason, very rare genetic diseases presenting sinus node or cardiac conduction system abnormalities are not discussed.
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Affiliation(s)
- Andreu Porta-Sánchez
- Cardiología Molecular, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid, Spain; Departamento de Cardiología, Unidad de Arritmias, Hospital Universitario Quironsalud Madrid, Spain; Departamento de Medicina, Universidad Europea de Madrid, Spain
| | - Silvia Giuliana Priori
- Cardiología Molecular, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) Madrid, Spain; Molecular Medicine Department, University of Pavia, Italy; Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy.
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13
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Alradhawi M, Ahmad M. Electrocardiogram screening programme in detecting sudden cardiac disease in the young: cost efficiency and diagnostic yield. Europace 2021; 24:524. [PMID: 34508589 DOI: 10.1093/europace/euab234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 08/20/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Mahmood Ahmad
- Royal Free Hospital, Department of Cardiology, London, UK
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14
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Dhutia H, Malhotra A, Finocchiaro G, Parpia S, Bhatia R, D'Silva A, Gati S, Mellor G, Chandra N, Narain R, Behr E, Tome M, Papadakis M, Sharma S. Electrocardiogram screening programme in detecting sudden cardiac disease in the young: cost efficiency and diagnostic yield-Authors' reply. Europace 2021; 24:524-525. [PMID: 34508590 DOI: 10.1093/europace/euab235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Harshil Dhutia
- Department of Cardiology, Glenfield Hospital, University Hospitals of Leicester, Leicester LE3 9QP, UK.,Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Aneil Malhotra
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK.,Division of Cardiovascular Sciences, University of Manchester, Manchester M13 9PL, UK
| | - Gherardo Finocchiaro
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Sameer Parpia
- Ontario Clinical Oncology Group, McMaster University, Hamilton, ON, L8V 1C3, Canada
| | - Raghav Bhatia
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Andrew D'Silva
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Sabiha Gati
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Greg Mellor
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Navin Chandra
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Rajay Narain
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Elijah Behr
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Maite Tome
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Michael Papadakis
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Sanjay Sharma
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK
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