心脏停搏致直立倾斜严重反应分析

Analaysis of Serious Responsiveness Induced by Asystole during Tilt Table Test

目的 分析直立倾斜试验中心脏停搏引起的严重反应。方法 采用基础倾斜（BHUT）及舌下含服硝酸甘油激发试验（SNHUT）。结果 心脏停搏5s以上致严重反应54例。BHUT6例、SNHUT48例；心脏抑制型30例，混合型24例；心脏停搏时间5．1—10s32例，〉10s22例；青少年（〈18岁）9例，成年人（至18岁）45例。严重反应在不同性别、年龄组，BHUT与SNHUT组间无显著差异（P〉0．05）。HUTT中81．48％严重反应在达到最快心率后5min内发生，SNHUT组发生率大于BHUT组（P〈0．05）。结论 直立倾斜试验虽然是无创性检查，仍屡有严重反应发生。心率明显增快时要警惕严重反应发生。应积极预防和处理严重阳性反应。

Objective To discuss the serious responsiveness induced by asystole during tilt table test （HUTT）. Methods Patients with unexplained syncope who accepted head- up tilt table test （BHUT） at 70 degrees with power tilt table. Negative cases of them were given sublingual glyceryl trinitrate 0. 3mg and accepted sublingual nitroglycerin head -up tilt table test （SNHUT）. Results Serious responsiveness occurred in 54 cases with asystole for more than 5seconds. 6 of them were in BHUT, 48 in SNHUT; 30 cases were inhibitory pattern, 24 mixed pattern;The time of asystole 5. 1 - 10s happened in 32 cases, and 〉 10s happened in 22 cases. There was no difference in different age groups, gender groups and methods groups（ P 〉0. 05）. 44 cases（81.48% ） of HUTT occurred in 5min after the heart rate arrived the fastest（ P 〈0. 05 ）. Condusion responsivenss. Serious positive response should be Although non -invasive, HUTT may result in serious prevented and managed in time.