The utility of autonomic nerve function tests in the quantitative diagnosis and risk evaluation in pediatric unex-plained syncope / 中华实用儿科临床杂志

ABSTRACT

To management of unexplained syncope (UPS)in children,the primary objectives are etiological diagnosis and risk evaluation. The head - up tilt test (HUTT)has a certain risk and limitation,though it is still an im-portant tool to diagnose and identify UPS at present. Now,the utility of other several autonomic nerve function tests in the quantitative diagnosis and risk evaluation in pediatric UPS were described,including 24 hours ambulatory blood pressure monitoring,QT interval dispersion,heart rate recovery,heart rate variability,autonomic testing.