Characteristics and Clinical Features of Positive Response for Head - Up Tilt Test in Children
- VernacularTitle:直立倾斜试验阳性反应特点及临床特征
- Author:
yu-li, WANG
;
jian-jun, CHEN
;
qing-you, ZHANG
;
jun-bao, DU
- Publication Type:Journal Article
- Keywords:
head - up tilt test;
children;
syncope
- From:Journal of Applied Clinical Pediatrics
2003;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the characteristics and clinical features of positive response during head - up tilt test (HUT) in children. Methods Forty- nine cases of syncope and aura of syncope were included in the study. All of them underwent HUT (tilt angle 60 degree,lasting 45 minutes). During the test,children' blood pressure,heart rate.electrocardiography and clinical symptoms and signs were dynamically observed. Results The common syncope aura symptoms were headache, dizziness, chest distress, difficulties in breathing, pale, perspiration, blurred vision, auditus depression and symptoms related to digestive symptoms. Among the 28 positive cases, 7 cases were of vaso - inhibitory pattern (25%), with a decrease in blood pressure and an increase in heart rate, 3 cases inhibitory pattern (11%), with a decrease in heart rate but withoilt'blood pressure changes, 4 cases mixed pattern (14 %), with decreases in heart rate and blood pressure obviously, 10 eases POTS (36%), with an increase in heart rate by 30 bpm or up to 120 bpm within 10 minutes while testing, and 4 cases orthostatic hypotension (14%), with a decrease in blood pressure within 3 minutes. Conclusion HUT can be regarded as the main tool in differential diagnosis of unexplained syncope in children.
