Journal Article

DZNE-2026-00584

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Holter-ECG findings after acute ischemic stroke and TIA: A systematic analysis of the MonDAFIS randomized trial.

Thießen, N. ; Olma, M. C. ; Tütüncü, S. ; Jawad-Ul-Qamar, M. ; Kunze, C. ; Thomalla, G. ; Nabavi, D. G. ; Röther, J. ; Laufs, U. ; Veltkamp, R. ; Heuschmann, P. U. ; Kirchhof, P. ; Endres, M.DZNE* ; Haeusler, K. G. ; Schnabel, R. B.

2026
Springer Nature [London]

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Please use a persistent id in citations: doi:10.1038/s41598-026-54603-z

Abstract: Holter-ECG monitoring is a critical component of post-stroke diagnostics, guiding cardiac work-up and secondary stroke prevention. Abnormal ECG findings beyond atrial fibrillation (AF) in stroke patients remain understudied. The prospective multicenter MonDAFIS trial randomized patients with acute ischemic stroke or transient ischemic attack (TIA) without known AF to Holter-ECG recording up to 7 days or usual care. Holter-ECG findings from the first 72 h of the intervention arm were analyzed to provide a reference guide in clinical practice. Furthermore, 24-hour and 72-hour Holter-ECG monitoring were compared to analyze the value of prolonged monitoring. 24-hour Holter-ECGs from 1,665 patients (median age 67; 40.4% women) identified supraventricular tachycardia (SVT) in 4.1% and newly-diagnosed AF in 2.2% of patients. Premature ventricular complexes were common (85.8%), ventricular couplets (28.0%) or bigeminy (14.0%) less common. Non-sustained ventricular tachycardia (nsVT) was detected in 1.7% of patients. Extended 72-hour-monitoring in 1,283 patients led to higher detection rates across all abnormalities, doubling nsVT (4.4%) and SVT (8.8%) detection rates. Generally, we observed higher detection rates with older age. Detection rates of supraventricular arrhythmias were higher in women, whereas men exhibited higher rates of ventricular abnormalities. Post-stroke ECG monitoring detects various arrhythmias beyond AF in a substantial proportion of individuals. Longer monitoring and older age are associated with increased detection rates, with notable sex-specific differences.

Keyword(s): Atrial fibrillation ; ECG monitoring ; Stroke

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Contributing Institute(s):

1. Interdisciplinary Dementia Research (AG Endres)

Research Program(s):

1. 353 - Clinical and Health Care Research (POF4-353) (POF4-353)

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