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  1. Article: Assessment of ICD eligibility in non-ischaemic cardiomyopathy patients: a position statement by the Task Force of the Dutch Society of Cardiology.

    van der Lingen, Anne-Lotte C J / Verstraelen, Tom E / van Erven, Lieselot / Meeder, Joan G / Theuns, Dominic A / Vernooy, Kevin / Wilde, Arthur A M / Maass, Alexander H / Allaart, Cornelis P

    Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation

    2024  Volume 32, Issue 5, Page(s) 190–197

    Abstract: International guidelines recommend implantation of an implantable cardioverter-defibrillator (ICD) in non-ischaemic cardiomyopathy (NICM) patients with a left ventricular ejection fraction (LVEF) below 35% despite optimal medical therapy and a life ... ...

    Abstract International guidelines recommend implantation of an implantable cardioverter-defibrillator (ICD) in non-ischaemic cardiomyopathy (NICM) patients with a left ventricular ejection fraction (LVEF) below 35% despite optimal medical therapy and a life expectancy of more than 1 year with good functional status. We propose refinement of these recommendations in patients with NICM, with careful consideration of additional risk parameters for both arrhythmic and non-arrhythmic death. These additional parameters include late gadolinium enhancement on cardiac magnetic resonance imaging and genetic testing for high-risk genetic variants to further assess arrhythmic risk, and age, comorbidities and sex for assessment of non-arrhythmic mortality risk. Moreover, several risk modifiers should be taken into account, such as concomitant arrhythmias that may affect LVEF (atrial fibrillation, premature ventricular beats) and resynchronisation therapy. Even though currently no valid cut-off values have been established, the proposed approach provides a more careful consideration of risks that may result in withholding ICD implantation in patients with low arrhythmic risk and substantial non-arrhythmic mortality risk.
    Language English
    Publishing date 2024-04-18
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2211468-3
    ISSN 1876-6250 ; 1568-5888 ; 0929-7456
    ISSN (online) 1876-6250
    ISSN 1568-5888 ; 0929-7456
    DOI 10.1007/s12471-024-01859-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Exploring the Correlation Between Fibrosis Biomarkers and Clinical Disease Severity in PLN p.Arg14del Patients.

    van der Voorn, Stephanie M / Bourfiss, Mimount / Te Riele, Anneline S J M / Taha, Karim / Vos, Marc A / de Brouwer, Remco / Verstraelen, Tom E / de Boer, Rudolf A / Remme, Carol Ann / van Veen, Toon A B

    Frontiers in cardiovascular medicine

    2022  Volume 8, Page(s) 802998

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2022-01-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2781496-8
    ISSN 2297-055X
    ISSN 2297-055X
    DOI 10.3389/fcvm.2021.802998
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Handling missing predictor values when validating and applying a prediction model to new patients.

    Hoogland, Jeroen / van Barreveld, Marit / Debray, Thomas P A / Reitsma, Johannes B / Verstraelen, Tom E / Dijkgraaf, Marcel G W / Zwinderman, Aeilko H

    Statistics in medicine

    2020  Volume 39, Issue 25, Page(s) 3591–3607

    Abstract: Missing data present challenges for development and real-world application of clinical prediction models. While these challenges have received considerable attention in the development setting, there is only sparse research on the handling of missing ... ...

    Abstract Missing data present challenges for development and real-world application of clinical prediction models. While these challenges have received considerable attention in the development setting, there is only sparse research on the handling of missing data in applied settings. The main unique feature of handling missing data in these settings is that missing data methods have to be performed for a single new individual, precluding direct application of mainstay methods used during model development. Correspondingly, we propose that it is desirable to perform model validation using missing data methods that transfer to practice in single new patients. This article compares existing and new methods to account for missing data for a new individual in the context of prediction. These methods are based on (i) submodels based on observed data only, (ii) marginalization over the missing variables, or (iii) imputation based on fully conditional specification (also known as chained equations). They were compared in an internal validation setting to highlight the use of missing data methods that transfer to practice while validating a model. As a reference, they were compared to the use of multiple imputation by chained equations in a set of test patients, because this has been used in validation studies in the past. The methods were evaluated in a simulation study where performance was measured by means of optimism corrected C-statistic and mean squared prediction error. Furthermore, they were applied in data from a large Dutch cohort of prophylactic implantable cardioverter defibrillator patients.
    MeSH term(s) Cohort Studies ; Computer Simulation ; Humans
    Language English
    Publishing date 2020-07-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 843037-8
    ISSN 1097-0258 ; 0277-6715
    ISSN (online) 1097-0258
    ISSN 0277-6715
    DOI 10.1002/sim.8682
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Long-term reliability of the phospholamban (PLN) p.(Arg14del) risk model in predicting major ventricular arrhythmia: a landmark study.

    van der Heide, Myrthe Y C / Verstraelen, Tom E / van Lint, Freyja H M / Bosman, Laurens P / de Brouwer, Remco / Proost, Virginnio M / van Drie, Esmée / Taha, Karim / Zwinderman, Aeilko H / Dickhoff, Cathelijne / Schoonderwoerd, Bas A / Germans, Tjeerd / Houweling, Arjan C / Gimeno-Blanes, Juan R / van der Zwaag, Paul A / de Boer, Rudolf A / Cox, Moniek G P J / van Tintelen, J Peter / Wilde, Arthur A M

    Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology

    2024  Volume 26, Issue 4

    Abstract: Aims: Recently, a genetic variant-specific prediction model for phospholamban (PLN) p.(Arg14del)-positive individuals was developed to predict individual major ventricular arrhythmia (VA) risk to support decision-making for primary prevention ... ...

    Abstract Aims: Recently, a genetic variant-specific prediction model for phospholamban (PLN) p.(Arg14del)-positive individuals was developed to predict individual major ventricular arrhythmia (VA) risk to support decision-making for primary prevention implantable cardioverter defibrillator (ICD) implantation. This model predicts major VA risk from baseline data, but iterative evaluation of major VA risk may be warranted considering that the risk factors for major VA are progressive. Our aim is to evaluate the diagnostic performance of the PLN p.(Arg14del) risk model at 3-year follow-up.
    Methods and results: We performed a landmark analysis 3 years after presentation and selected only patients with no prior major VA. Data were collected of 268 PLN p.(Arg14del)-positive subjects, aged 43.5 ± 16.3 years, 38.9% male. After the 3 years landmark, subjects had a mean follow-up of 4.0 years (± 3.5 years) and 28 (10%) subjects experienced major VA with an annual event rate of 2.6% [95% confidence interval (CI) 1.6-3.6], defined as sustained VA, appropriate ICD intervention, or (aborted) sudden cardiac death. The PLN p.(Arg14del) risk score yielded good discrimination in the 3 years landmark cohort with a C-statistic of 0.83 (95% CI 0.79-0.87) and calibration slope of 0.97.
    Conclusion: The PLN p.(Arg14del) risk model has sustained good model performance up to 3 years follow-up in PLN p.(Arg14del)-positive subjects with no history of major VA. It may therefore be used to support decision-making for primary prevention ICD implantation not merely at presentation but also up to at least 3 years of follow-up.
    MeSH term(s) Female ; Humans ; Male ; Arrhythmias, Cardiac/diagnosis ; Arrhythmias, Cardiac/genetics ; Arrhythmias, Cardiac/therapy ; Calcium-Binding Proteins/genetics ; Death, Sudden, Cardiac/etiology ; Death, Sudden, Cardiac/prevention & control ; Defibrillators, Implantable ; Reproducibility of Results ; Risk Factors ; Adult ; Middle Aged
    Chemical Substances Calcium-Binding Proteins ; phospholamban
    Language English
    Publishing date 2024-04-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1449879-0
    ISSN 1532-2092 ; 1099-5129
    ISSN (online) 1532-2092
    ISSN 1099-5129
    DOI 10.1093/europace/euae069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The β-angle can help guide clinical decisions in the diagnostic work-up of patients suspected of Brugada syndrome: a validation study of the β-angle in determining the outcome of a sodium channel provocation test.

    van der Ree, Martijn H / Vendrik, Jeroen / Verstraelen, Tom E / Kors, Jan A / Amin, Ahmad S / Wilde, Arthur A M / Tan, Hanno L / Postema, Pieter G

    Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology

    2021  Volume 23, Issue 12, Page(s) 2020–2028

    Abstract: Aims: In patients with Brugada syndrome (BrS) but without spontaneous Type-1 electrocardiogram, several electrocardiographic characteristics have been studied, including the β-angle. Previous studies suggested that the β-angle might be useful in ... ...

    Abstract Aims: In patients with Brugada syndrome (BrS) but without spontaneous Type-1 electrocardiogram, several electrocardiographic characteristics have been studied, including the β-angle. Previous studies suggested that the β-angle might be useful in distinguishing BrS-patients from patients with only suggestive repolarization patterns without performing sodium channel blocker provocation testing. In this study, we aimed to determine the diagnostic value of the β-angle in patients suspected of BrS.
    Methods and results: A large cohort (n = 1430) of consecutive patients who underwent provocation testing was evaluated. β-angles were measured in leads V1, V2, and their corresponding positions over the second and third intercostal space. Receiver-operating characteristic curves were constructed and the diagnostic accuracy of previously reported β-angle cut-offs were calculated and evaluated. The importance of the β-angle for predicting the provocation test outcome was determined using a prediction model constructed with logistic regression. The optimum β-angle cut-off in our cohort for ruling out a positive provocation test was 15°; sensitivities were 80-98% and negative predictive values were 79-96% among the right precordial leads. Previously reported β-angle cut-offs performed less well, indicated by lower Youden indices. In the optimism-corrected prediction model [C-statistic: 0.78 (95% CI: 0.75-0.81)], the β-angle had large value (Z-score: 2.1-10.3) and aided construction of a nomogram to predict test outcome.
    Conclusion: To predict the outcome of provocation testing for BrS, the β-angle alone does not demonstrate strong diagnostic characteristics. However, the β-angle is an important variable to predict provocation test outcome and thus has added value.
    MeSH term(s) Brugada Syndrome/diagnosis ; Brugada Syndrome/drug therapy ; Electrocardiography/methods ; Humans ; ROC Curve ; Sodium Channel Blockers/therapeutic use ; Sodium Channels
    Chemical Substances Sodium Channel Blockers ; Sodium Channels
    Language English
    Publishing date 2021-06-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 1449879-0
    ISSN 1532-2092 ; 1099-5129
    ISSN (online) 1532-2092
    ISSN 1099-5129
    DOI 10.1093/europace/euab128
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Improving electrocardiogram-based detection of rare genetic heart disease using transfer learning: An application to phospholamban p.Arg14del mutation carriers.

    Lopes, Ricardo R / Bleijendaal, Hidde / Ramos, Lucas A / Verstraelen, Tom E / Amin, Ahmad S / Wilde, Arthur A M / Pinto, Yigal M / de Mol, Bas A J M / Marquering, Henk A

    Computers in biology and medicine

    2021  Volume 131, Page(s) 104262

    Abstract: The pathogenic mutation p.Arg14del in the gene encoding Phospholamban (PLN) is known to cause cardiomyopathy and leads to increased risk of sudden cardiac death. Automatic tools might improve the detection of patients with this rare disease. Deep ... ...

    Abstract The pathogenic mutation p.Arg14del in the gene encoding Phospholamban (PLN) is known to cause cardiomyopathy and leads to increased risk of sudden cardiac death. Automatic tools might improve the detection of patients with this rare disease. Deep learning is currently the state-of-the-art in signal processing but requires large amounts of data to train the algorithms. In situations with relatively small amounts of data, like PLN, transfer learning may improve accuracy. We propose an ECG-based detection of the PLN mutation using transfer learning from a model originally trained for sex identification. The sex identification model was trained with 256,278 ECGs and subsequently finetuned for PLN detection (155 ECGs of patients with PLN) with two control groups: a balanced age/sex matched group and a randomly selected imbalanced population. The data was split in 10 folds and 20% of the training data was used for validation and early stopping. The models were evaluated with the area under the receiver operating characteristic curve (AUROC) of the testing data. We used gradient activation for explanation of the prediction models. The models trained with transfer learning outperformed the models trained from scratch for both the balanced (AUROC 0.87 vs AUROC 0.71) and imbalanced (AUROC 0.0.90 vs AUROC 0.65) population. The proposed approach was able to improve the accuracy of a rare disease detection model by transfer learning information from a non-manual annotated and abundant label with only limited data available.
    MeSH term(s) Calcium-Binding Proteins ; Electrocardiography ; Heart Diseases ; Humans ; Machine Learning ; Mutation ; Rare Diseases
    Chemical Substances Calcium-Binding Proteins ; phospholamban
    Language English
    Publishing date 2021-02-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 127557-4
    ISSN 1879-0534 ; 0010-4825
    ISSN (online) 1879-0534
    ISSN 0010-4825
    DOI 10.1016/j.compbiomed.2021.104262
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  7. Article ; Online: ECG-only explainable deep learning algorithm predicts the risk for malignant ventricular arrhythmia in phospholamban cardiomyopathy.

    van de Leur, Rutger R / de Brouwer, Remco / Bleijendaal, Hidde / Verstraelen, Tom E / Mahmoud, Belend / Perez-Matos, Ana / Dickhoff, Cathelijne / Schoonderwoerd, Bas A / Germans, Tjeerd / Houweling, Arjan / van der Zwaag, Paul A / Cox, Moniek G P J / Peter van Tintelen, J / Te Riele, Anneline S J M / van den Berg, Maarten P / Wilde, Arthur A M / Doevendans, Pieter A / de Boer, Rudolf A / van Es, René

    Heart rhythm

    2024  

    Abstract: Background: Phospholamban (PLN) p.(Arg14del) variant carriers are at risk for development of malignant ventricular arrhythmia (MVA). Accurate risk stratification allows timely implantation of intracardiac defibrillators and is currently performed with a ...

    Abstract Background: Phospholamban (PLN) p.(Arg14del) variant carriers are at risk for development of malignant ventricular arrhythmia (MVA). Accurate risk stratification allows timely implantation of intracardiac defibrillators and is currently performed with a multimodality prediction model.
    Objective: This study aimed to investigate whether an explainable deep learning-based approach allows risk prediction with only electrocardiogram (ECG) data.
    Methods: A total of 679 PLN p.(Arg14del) carriers without MVA at baseline were identified. A deep learning-based variational auto-encoder, trained on 1.1 million ECGs, was used to convert the 12-lead baseline ECG into its FactorECG, a compressed version of the ECG that summarizes it into 32 explainable factors. Prediction models were developed by Cox regression.
    Results: The deep learning-based ECG-only approach was able to predict MVA with a C statistic of 0.79 (95% CI, 0.76-0.83), comparable to the current prediction model (C statistic, 0.83 [95% CI, 0.79-0.88]; P = .054) and outperforming a model based on conventional ECG parameters (low-voltage ECG and negative T waves; C statistic, 0.65 [95% CI, 0.58-0.73]; P < .001). Clinical simulations showed that a 2-step approach, with ECG-only screening followed by a full workup, resulted in 60% less additional diagnostics while outperforming the multimodal prediction model in all patients. A visualization tool was created to provide interactive visualizations (https://pln.ecgx.ai).
    Conclusion: Our deep learning-based algorithm based on ECG data only accurately predicts the occurrence of MVA in PLN p.(Arg14del) carriers, enabling more efficient stratification of patients who need additional diagnostic testing and follow-up.
    Language English
    Publishing date 2024-02-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2229357-7
    ISSN 1556-3871 ; 1547-5271
    ISSN (online) 1556-3871
    ISSN 1547-5271
    DOI 10.1016/j.hrthm.2024.02.038
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  8. Article ; Online: Impact of a Chronic Total Coronary Occlusion on the Incidence of Appropriate Implantable Cardioverter-Defibrillator Shocks and Mortality: A Substudy of the Dutch Outcome in ICD Therapy (DO-IT)) Registry.

    van Veelen, Anna / Verstraelen, Tom E / Somsen, Yvemarie B O / Elias, Joëlle / van Dongen, Ivo M / Delnoy, Peter Paul H M / Scholten, Marcoen F / Boersma, Lucas V A / Maass, Alexander H / Strikwerda, Sipke / Firouzi, Mehran / Allaart, Cornelis P / Vernooy, Kevin / Grauss, Robert W / Tukkie, Raymond / Knaapen, Paul / Zwinderman, Aeilko H / Dijkgraaf, Marcel G W / Claessen, Bimmer E P M /
    van Barreveld, Marit / Wilde, Arthur A M / Henriques, José P S

    Journal of the American Heart Association

    2024  Volume 13, Issue 8, Page(s) e032033

    Abstract: Background: Chronic total coronary occlusions (CTO) substantially increase the risk for sudden cardiac death. Among patients with chronic ischemic heart disease at risk for sudden cardiac death, an implantable cardioverter defibrillator (ICD) is the ... ...

    Abstract Background: Chronic total coronary occlusions (CTO) substantially increase the risk for sudden cardiac death. Among patients with chronic ischemic heart disease at risk for sudden cardiac death, an implantable cardioverter defibrillator (ICD) is the favored therapy for primary prevention of sudden cardiac death. This study sought to investigate the impact of CTOs on the risk for appropriate ICD shocks and mortality within a nationwide prospective cohort.
    Methods and results: This is a subanalysis of the nationwide Dutch-Outcome in ICD Therapy (DO-IT) registry of primary prevention ICD recipients in The Netherlands between September 2014 and June 2016 (n=1442). We identified patients with chronic ischemic heart disease (n=663) and assessed available coronary angiograms for CTO presence (n=415). Patients with revascularized CTOs were excluded (n=79). The primary end point was the composite of all-cause mortality and appropriate ICD shocks. Clinical follow-up was conducted for at least 2 years. A total of 336 patients were included, with an average age of 67±9 years, and 20.5% was female (n=69). An unrevascularized CTO was identified in 110 patients (32.7%). During a median follow-up period of 27 months (interquartile range, 24-32), the primary end point occurred in 21.1% of patients with CTO (n=23) compared with 11.9% in patients without CTO (n=27;
    Conclusions: Within this nationwide prospective registry of primary prevention ICD recipients, the presence of an unrevascularized CTO was an independent predictor for the composite outcome of all-cause mortality and appropriate ICD shocks.
    MeSH term(s) Humans ; Female ; Middle Aged ; Aged ; Coronary Occlusion/complications ; Coronary Occlusion/diagnostic imaging ; Coronary Occlusion/therapy ; Arrhythmias, Cardiac ; Defibrillators, Implantable/adverse effects ; Stroke Volume ; Incidence ; Ventricular Function, Left ; Death, Sudden, Cardiac/epidemiology ; Death, Sudden, Cardiac/etiology ; Death, Sudden, Cardiac/prevention & control ; Registries ; Risk Factors
    Language English
    Publishing date 2024-04-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2653953-6
    ISSN 2047-9980 ; 2047-9980
    ISSN (online) 2047-9980
    ISSN 2047-9980
    DOI 10.1161/JAHA.123.032033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Deep neural network-based clustering of deformation curves reveals novel disease features in PLN pathogenic variant carriers.

    Taha, Karim / van de Leur, Rutger R / Vessies, Melle / Mast, Thomas P / Cramer, Maarten J / Cauwenberghs, Nicholas / Verstraelen, Tom E / de Brouwer, Remco / Doevendans, Pieter A / Wilde, Arthur / Asselbergs, Folkert W / van den Berg, Maarten P / D'hooge, Jan / Kuznetsova, Tatiana / Teske, Arco J / van Es, René

    The international journal of cardiovascular imaging

    2023  Volume 39, Issue 11, Page(s) 2149–2161

    Abstract: Echocardiographic deformation curves provide detailed information on myocardial function. Deep neural networks (DNNs) may enable automated detection of disease features in deformation curves, and improve the clinical assessment of these curves. We aimed ... ...

    Abstract Echocardiographic deformation curves provide detailed information on myocardial function. Deep neural networks (DNNs) may enable automated detection of disease features in deformation curves, and improve the clinical assessment of these curves. We aimed to investigate whether an explainable DNN-based pipeline can be used to detect and visualize disease features in echocardiographic deformation curves of phospholamban (PLN) p.Arg14del variant carriers. A DNN was trained to discriminate PLN variant carriers (n = 278) from control subjects (n = 621) using raw deformation curves obtained by 2D-speckle tracking in the longitudinal axis. A visualization technique was used to identify the parts of these curves that were used by the DNN for classification. The PLN variant carriers were clustered according to the output of the visualization technique. The DNN showed excellent discriminatory performance (C-statistic 0.93 [95% CI 0.87-0.97]). We identified four clusters with PLN-associated disease features in the deformation curves. Two clusters showed previously described features: apical post-systolic shortening and reduced systolic strain. The two other clusters revealed novel features, both reflecting delayed relaxation. Additionally, a fifth cluster was identified containing variant carriers without disease features in the deformation curves, who were classified as controls by the DNN. This latter cluster had a very benign disease course regarding development of ventricular arrhythmias. Applying an explainable DNN-based pipeline to myocardial deformation curves enables automated detection and visualization of disease features. In PLN variant carriers, we discovered novel disease features which may improve individual risk stratification. Applying this approach to other diseases will further expand our knowledge on disease-specific deformation patterns. Overview of the deep neural network-based pipeline for feature detection in myocardial deformation curves. Firstly, phospholamban (PLN) p.Arg14del variant carriers and controls were selected and a deep neural network (DNN) was trained to detect the PLN variant carriers. Subsequently, a clustering-based approach was performed on the attention maps of the DNN, which revealed 4 distinct phenotypes of PLN variant carriers with different prognoses. Moreover, a cluster without features and a benign prognosis was detected.
    MeSH term(s) Humans ; Predictive Value of Tests ; Myocardium/pathology ; Calcium-Binding Proteins/genetics ; Neural Networks, Computer
    Chemical Substances phospholamban ; Calcium-Binding Proteins
    Language English
    Publishing date 2023-08-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2055311-0
    ISSN 1875-8312 ; 1573-0743 ; 1569-5794 ; 0167-9899
    ISSN (online) 1875-8312 ; 1573-0743
    ISSN 1569-5794 ; 0167-9899
    DOI 10.1007/s10554-023-02924-9
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  10. Article: Exercise does not influence development of phenotype in PLN p.(Arg14del) cardiomyopathy.

    van Lint, Freyja H M / Hassanzada, Fahima / Verstraelen, Tom E / Wang, Weijia / Bosman, Laurens P / van der Zwaag, Paul A / Oomen, Toon / Calkins, Hugh / Murray, Brittney / Tichnell, Crystal / Beuren, Thais M A / Asselbergs, Folkert W / Houweling, Arjan / van den Berg, Maarten P / Wilde, Arthur A M / James, Cynthia A / van Tintelen, J Peter

    Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation

    2023  Volume 31, Issue 7-8, Page(s) 291–299

    Abstract: Background: Endurance and frequent exercise are associated with earlier onset of arrhythmogenic right ventricular cardiomyopathy (ARVC) and ventricular arrhythmias (VA) in desmosomal gene variant carriers. Individuals with the pathogenic c.40_42del; p.( ... ...

    Abstract Background: Endurance and frequent exercise are associated with earlier onset of arrhythmogenic right ventricular cardiomyopathy (ARVC) and ventricular arrhythmias (VA) in desmosomal gene variant carriers. Individuals with the pathogenic c.40_42del; p.(Arg14del) variant in the PLN gene are frequently diagnosed with ARVC or dilated cardiomyopathy (DCM). The aim of this study was to evaluate the effect of exercise in PLN p.(Arg14del) carriers.
    Methods: In total, 207 adult PLN p.(Arg14del) carriers (39.1% male; mean age 53 ± 15 years) were interviewed on their regular physical activity since the age of 10 years. The association of exercise with diagnosis of ARVC, DCM, sustained VA and hospitalisation for heart failure (HF) was studied.
    Results: Individuals participated in regular physical activities with a median of 1661 metabolic equivalent of task (MET) hours per year (31.9 MET-hours per week) until clinical presentation. The 50% most and least active individuals had a similar frequency of sustained VA (18.3% vs 18.4%; p = 0.974) and hospitalisation for HF (9.6% vs 8.7%; p = 0.827). There was no relationship between exercise and survival free from (incident) sustained VA (p = 0.65), hospitalisation for HF (p = 0.81), diagnosis of ARVC (p = 0.67) or DCM (p = 0.39) during follow-up. In multivariate analyses, exercise was not associated with sustained VA or HF hospitalisation during follow-up in this relatively not-active cohort.
    Conclusion: There was no association between the amount of exercise and the susceptibility to develop ARVC, DCM, VA or HF in PLN p.(Arg14del) carriers. This suggested unaffected PLN p.(Arg14del) carriers can safely perform mild-moderate exercise, in contrast to desmosomal variant carriers and ARVC patients.
    Language English
    Publishing date 2023-07-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2211468-3
    ISSN 1876-6250 ; 1568-5888 ; 0929-7456
    ISSN (online) 1876-6250
    ISSN 1568-5888 ; 0929-7456
    DOI 10.1007/s12471-023-01800-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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