Face immersion in cold water induces prolongation of the QT interval and T-wave changes in children with nonfamilial long QT syndrome.
We investigated the relation between heart rate and the QT interval using face immersion in cold water in children with long QT syndrome (LQTS) without a family history of this condition, and in control children. The face immersion test revealed that all children with high probability of LQTS had a significantly longer QT interval than control children during face immersion, and that the test could induce T-wave alternans or a notched T-wave in all children with a high probability of LQTS.
Yoshinaga
M
M
Department of Pediatrics, Faculty of Medicine, Kagoshima University, Japan.
Kamimura
J
J
Fukushige
T
T
Kusubae
R
R
Shimago
A
A
Nishi
J
J
Kono
Y
Y
Nomura
Y
Y
Miyata
K
K
D000293:Adolescent; D002648:Child; D003080:Cold Temperature; D005145:Face; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D007101:Immersion / Q000009:adverse effects*; D008133:Long QT Syndrome / Q000175:diagnosis* / Q000503:physiopathology; D008297:Male; D015701:Near Drowning / Q000503:physiopathology; D011237:Predictive Value of Tests; D013550:Swimming; D014867:Water
D014867:Water