Key result
Subarachnoid block triggers acute AF via heightened vagal tone in a structurally normal heart.
Why the study?
Atrial fibrillation can be precipitated by subarachnoid block even in patients with structurally and functionally normal hearts, with increased vagal tone as a possible cause.
Key points are not available for this paper at this time.
Design
Case report
May warrant vigilance for AF during subarachnoid block even in normal hearts; hypothesis-generating and requires prospective confirmation.
We describe a case, where after subarachnoid block, atrial fibrillation (AF) was precipitated despite the heart was normal structurally and functionally. Since the only risk factor present was increased vagal tone due to subarachnoid block, we attributed it to the causation of AF.
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A 2006 study studied this question. Subarachnoid block precipitated atrial fibrillation in a patient with a structurally and functionally normal heart, attributed to increased vagal tone.
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