ArticleJournal of the American Heart Association2022
Interatrial Block Predicts Life-Threatening Arrhythmias in Dilated Cardiomyopathy.
Article in Journal of the American Heart Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Article
- Inter-atrial block as a predictor of adverse outcomes in patients with HFpEF.ESC heart failure · 2025Article
- A silent interweaving: interatrial block and laminopathy.European heart journal. Case reports · 2023Article
- Interatrial Block, Bayés Syndrome, Left Atrial Enlargement, and Atrial Failure.Journal of clinical medicine · 2023Review
- Identification ofDiagnostics (Basel, Switzerland) · 2023Article
- [New atypical advanced interatrial block with triphasic morphology].Archivos peruanos de cardiologia y cirugia cardiovascularArticle
Corrections and comments
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Authors and funding
19 authors at 5 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background Interatrial block (IAB) has been associated with supraventricular arrhythmias and stroke, and even with sudden cardiac death in the general population. Whether IAB is associated with life-threatening arrhythmias (LTA) and sudden cardiac death in dilated cardiomyopathy (DCM) remains unknown. This study aimed to determine the association between IAB and LTA in ambulant patients with DCM. Methods and Results A derivation cohort (Maastricht Dilated Cardiomyopathy Registry; N=469) and an external validation cohort (Utrecht Cardiomyopathy Cohort; N=321) were used for this study. The presence of IAB (P-wave duration>120 milliseconds) or atrial fibrillation (AF) was determined using digital calipers by physicians blinded to the study data. In the derivation cohort, IAB and AF were present in 291 (62%) and 70 (15%) patients with DCM, respectively. LTA (defined as sudden cardiac death, justified shock from implantable cardioverter-defibrillator or anti-tachypacing, or hemodynamic unstable ventricular fibrillation/tachycardia) occurred in 49 patients (3 with no IAB, 35 with IAB, and 11 patients with AF, respectively; median follow-up, 4.4 years [2.1; 7.4]). The LTA-free survival distribution significantly differed between IAB or AF versus no IAB (both
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