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Published on: February 26, 2013
Intermittent Interatrial Block in a Patient With Recurrent Transient Ischemic Attacks
Serhat Kesriklioglu1, Ahmet Taha Sahin2, Ahmet Lutfu Sertdemir1
1Department of Cardiology, Necmettin Erbakan University, School of Medicine, Konya, Turkey.
Abstract:
Interatrial block (IAB) is a conduction disorder linked to atrial fibrillation (AF) and ischemic stroke. Intermittent IAB, often triggered by premature atrial complexes (PACs), may precede AF and increase thromboembolic risk. We present a case of embolic stroke of undetermined source (ESUS) with intermittent partial IAB detected on ECG. Serial ECGs and Holter monitoring were analyzed. Intermittent partial IAB with dynamic P-wave changes was observed. No AF or alternative embolic source was identified. Intermittent IAB may indicate atrial vulnerability in ESUS. Recognizing subtle ECG changes could aid risk stratification and stroke prevention.
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