ArticleEuropean heart journal open2022
Paradoxical prolongation of QT interval during exercise in patients with hypertrophic cardiomyopathy: cellular mechanisms and implications for diastolic function.
Article in European heart journal open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Atrial electrophysiology in hypertrophic cardiomyopathy: current insights and knowledge gaps.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2026Review
- Beat-to-beat variability of ventricular repolarization reveals sex-specific instability and proarrhythmic risk.The Journal of physiology · 2026Article
- The many faces of SCN5A pathogenic variants: from channelopathy to cardiomyopathy.Heart failure reviews · 2025Review
- Electrophysiological mechanisms underlying T wave pseudonormalisation on stress ECGs in hypertrophic cardiomyopathy.Computers in biology and medicine · 2024Article
- Multimodality Imaging in Sarcomeric Hypertrophic Cardiomyopathy: Get It Right…on Time.Life (Basel, Switzerland) · 2023Review
Corrections and comments
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Authors and funding
16 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aims: Ventricular cardiomyocytes from hypertrophic cardiomyopathy (HCM) patient hearts show prolonged action potential duration (APD), impaired intracellular Ca Methods and results: Non-obstructive HCM patients (178) and control subjects (81) underwent standard exercise testing, including exercise echocardiography. Ventricular myocytes were isolated from myocardial samples of 23 HCM and eight non-failing non-hypertrophic surgical patients. The APD shortening in response to high frequencies was maintained in HCM myocytes, while β-adrenergic stimulation unexpectedly prolonged APDs, ultimately leading to a lesser shortening of APDs in response to exercise. In HCM vs. control subjects, we observed a lesser shortening of QT interval at peak exercise (QTc: +27 ± 52 ms in HCM, -4 ± 50 ms in controls, Conclusions: Abnormal balance of Ca
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.