Article
Coexistence of congenital long QT syndrome and autonomic dysregulation in children.
Pediatrics international : official journal of the Japan Pediatric Society - 1 Jul 2016
Ogawa Yoshiharu, Aiba Takeshi, Kamei Naoya, Tominaga Kenta, Fujita Hideki, Miyamoto Yoshihiro, Tanaka Toshikatsu, Kido Sachiko
Abstract excerpt
Loss of consciousness (LOC) in long QT syndrome (LQTS) patients can be caused by torsade de pointes (TdP) or vasovagal syncope (VVS). On genetic testing and head-up tilt testing (HUTT), we diagnosed three young patients with both genotyped LQTS and autonomic dysregulation. According to grade of prolongation of QT interval and LOC status, syncope episodes in two patients were classified as due to VVS, while those...
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