RESUMO

Fifteen patients aged 10 to 18 years with syncope of unknown origin, and 10 healthy control children aged 11 to 18 years, were evaluated by head-up tilt to 60 degrees for 60 minutes. Six patients (43%) reproduced symptoms of syncope during the examination. Four had a typical vasovagal reaction; two had marked hyperventilation. None of the children in the control group had syncope. The head-up tilt test offers a simple, noninvasive, high-yielding diagnostic tool for evaluation of syncope in children.

Assuntos

Postura , Síncope/diagnóstico , Adolescente , Monitores de Pressão Arterial , Criança , Eletrocardiografia , Eletrocardiografia Ambulatorial , Feminino , Humanos , Masculino , Postura/fisiologia , Recidiva , Síncope/etiologia , Síncope/fisiopatologia , Fatores de Tempo

Assuntos

Hipoparatireoidismo/congênito , Cálcio/sangue , Criança , Nanismo/complicações , Humanos , Hipoparatireoidismo/sangue , Masculino