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Violent hiccups: an infrequent cause of bradyarrhythmias
William M Suh1, Subramaniam C Krishnan
1University of California, Irvine Medical Center, Department of Medicine, Division of Cardiology, Orange CA.
Abstract:
A hiccup, or singultus, results from a sudden, simultaneous, vigorous contraction of the diaphragm and inspiratory muscles, accompanied by closure of the glottis. Hiccups can be associated with bradyarrhythmias. The mechanism of this phenomenon is likely hiccup-induced Valsalva maneuver and increased parasympathetic tone. We present a case of a patient with violent hiccups producing a bradyarrhythmia.
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