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Continuous 4‐week ECG monitoring with adhesive electrodes reveals AF in patients with recent embolic stroke of undetermined source
Author(s) -
Lumikari Tuomas J.,
Putaala Jukka,
Kerola Anne,
Sibolt Gerli,
Pirinen Jani,
Pakarinen Sami,
Lehto Mika,
Nieminen Tuomo
Publication year - 2019
Publication title -
annals of noninvasive electrocardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.494
H-Index - 48
eISSN - 1542-474X
pISSN - 1082-720X
DOI - 10.1111/anec.12649
Subject(s) - medicine , asymptomatic , atrial fibrillation , embolic stroke , stroke (engine) , cardiology , cardiac monitoring , incidence (geometry) , occult , ischemic stroke , pathology , mechanical engineering , physics , alternative medicine , ischemia , optics , engineering
Background Atrial fibrillation (AF) frequently escapes routine stroke workup due to its unpredictable and often asymptomatic nature, leaving a significant portion of patients at high risk of recurrent stroke. Recent trials emphasized continuous electrocardiogram (ECG) monitoring in the detection of occult AF. We screened AF in patients meeting the embolic stroke of unknown source (ESUS) criteria using an external miniaturized recorder with an adhesive electrode. Methods Patients aged ≥50 with recent ESUS were prospectively screened and assigned to wear a 1‐lead ECG device capable to record continuous ECG for up to 4 weeks. Electrodes were replaced every 3–4 days. Primary outcome was proportion of patients completing at least 80% of monitoring. Secondary outcome measures included incidence of AF and initiation of oral anticoagulation therapy after AF detection. Results Fifty‐seven patients were monitored (mean age 64.5 ± 8.2 years, median delay from stroke to the start of monitoring 8 days, IQR 4–44). Of these, 51 patients (89.5%) completed at least 80% of the desired monitoring period. We detected AF ≥30 s in seven patients (12.3%), all of whom initiated anticoagulation therapy. Atrial fibrillation was revealed in six patients (85.7%) within the first week of monitoring. Compared to patients without AF, patients with AF were older (70.6 ± 5.1 vs. 63.6 ± 8.3 years, p  < 0.011) and more obese (body mass index 30.0 ± 3.4 vs. 26.6 ± 4.6, p  < 0.039). Conclusions Prolonged ECG monitoring with an external device using adhesive electrodes is feasible in ESUS patients, since nine out of ten patients used the device appropriately and AF was detected in one out of eight patients.

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