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Electrocardiographic Features in a Patient with the Coexistence of Long QT Syndrome and Coronary Vasospasm
Author(s) -
TANAKA YASUAKI,
NISHIZAKI MITSUHIRO,
YAMAWAKE NORIYOSHI,
SAKURADA HARUMIZU,
HIRAOKA MASAYASU
Publication year - 2008
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2008.01137.x
Subject(s) - medicine , qt interval , cardiology , coronary vasospasm , ventricular fibrillation , vasospasm , long qt syndrome , epinephrine , t wave , anesthesia , cardiopulmonary resuscitation , electrocardiography , resuscitation , coronary angiography , myocardial infarction , subarachnoid hemorrhage
A 20‐year‐old woman suffered from cardiopulmonary arrest due to ventricular fibrillation. The electrocardiogram after resuscitation showed prolonged QTc interval with bifid T wave. On the third hospital day, the QTc interval and the T‐wave changes improved. However, the QTc interval was distinctively prolonged after administration of epinephrine, oral glucose load, and intracoronary acetylcholine (Ach) into the left coronary artery. Moreover, an injection of Ach into the right coronary artery provoked severe coronary spasm. This is a case of the coexistence of long QT syndrome (LQTS) and coronary vasospasm, which may give an important clinical implication for the treatment of LQTS.