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01-01-2013 | Case Report

A left ventricular noncompaction in a patient with long QT syndrome caused by a KCNQ1 mutation: a case report

Authors: Kentaro Nakashima, Isao Kusakawa, Tsuyoshi Yamamoto, Shinsuke Hirabayashi, Ryohta Hosoya, Wataru Shimizu, Naokata Sumitomo

Published in: Heart and Vessels | Issue 1/2013

Abstract

A 5-year-old girl developed cardiopulmonary arrest after crying. From the electrocardiogram and echocardiography, a left ventricular noncompaction (LVNC) with long QT syndrome (LQT) was suspected as the cause of the cardiopulmonary arrest, and treatment with a β-blocker and a calcium antagonist was then begun. A genetic screening of LQT-related genes revealed a previously reported heterozygous KCNQ1 mutation. The association of LVNC and LQT is an extremely rare condition, and long-term treatment based on the characteristics of both disorders is required. Also, the association of cardiomyopathy and LQT could become a new clinical entity in the future.

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Title: A left ventricular noncompaction in a patient with long QT syndrome caused by a KCNQ1 mutation: a case report
Authors: Kentaro Nakashima
Isao Kusakawa
Tsuyoshi Yamamoto
Shinsuke Hirabayashi
Ryohta Hosoya
Wataru Shimizu
Naokata Sumitomo
Publication date: 01-01-2013
Publisher: Springer Japan
Published in: Heart and Vessels / Issue 1/2013
Print ISSN: 0910-8327
Electronic ISSN: 1615-2573
DOI: https://doi.org/10.1007/s00380-012-0235-8

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A left ventricular noncompaction in a patient with long QT syndrome caused by a KCNQ1 mutation: a case report

Abstract

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