Transient ST Elevation in Vagally Mediated Atrial Fibrillation
1Limassol Cardiology Centre.
Journal of Atrial Fibrillation
|May 13, 2017
Summary
A young man experienced vagally mediated atrial fibrillation with ST-segment elevation. This ST-elevation phenomenon, potentially due to parasympathetic tone, resolved after restoring normal heart rhythm.
Area of Science:
- Cardiology
- Electrophysiology
- Autonomic Nervous System Function
Background:
- Vagally mediated atrial fibrillation (VMAF) is a type of irregular heartbeat triggered by the vagus nerve.
- ST-segment elevation on an electrocardiogram (ECG) typically indicates myocardial infarction, but can have other causes.
Observation:
- A case study of a young, healthy male presenting with VMAF.
- The patient exhibited straight type ST-segment elevation in inferolateral ECG leads.
Findings:
- The ST-segment elevation resolved spontaneously within hours after the restoration of normal sinus rhythm.
- This ST-elevation pattern associated with VMAF has not been previously documented in medical literature.
Implications:
- The observed ST-elevation may be a novel indicator of intense parasympathetic tone during VMAF.
- This finding could potentially aid in differentiating the cause of ST-elevation, distinguishing it from acute coronary syndromes.
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