摘要 为总结血管迷走性晕厥(VS)的临床规律性，对126例倾斜试验(TTT)阳性诊断为VS患者的临床表现、心电图、血压情况和其中56例动态心电图、25例动态血压检测资料进行分析，并与TTT试验阴性的18例患者动态心电图检测和12例患者动态血压、偶测血压结果进行比较。结果表明VS患者的临床表现变异较大。动态心电图检测发现晕厥组35例出现心率突然变慢、21例出现白天最慢心率低于夜间最慢心率的现象，而对照组无一例类似情况(35/56，21/56 vs 0，P均<0.05)。24 h动态血压检测发现晕厥组9例日间最低血压低于夜间最低血压，而对照组无此现象(9/25 vs 0，P<0.05)。结果提示对临床上仅有近似晕厥症状者，如果动态心电图和动态血压检测出现上述改变，则对诊断VS有较强提示作用。

Abstract To sum up the clinical regularity of vasovagal syncope (VS),the clinical data including electrocardiogram (ECG) and blood pressure(BP) for 126 cases diagnosed by tilt table testing (TTT),the data of 24-hour dynamic ECG(DCG) in 56 and 24-hour ambulatory BP(ABP) in 25 of them were analyzed.The data of DCG for 18 and APB in 12 cases with TTT negativity served as control.The results showed that clinical presentations of VS were variable.In DCG data of syncope,there was the phenomenon of heart rate(HR) being suddenly slowed in 35 of 56 cases,and HR at daytime being slower than lowest HR at nighttime in 21 of them,and in control group there was no case as said above (P<0.05,respectively).Compared with control group,incidence of systolic blood pressure(SBP) value at daytime was smaller than lowest SBP value at nighttime was markedly increased (9/25 vs 0,P<0.05).These results suggest that the dynamic detecting of DCG and ABP are very useful to diagnosing VS.

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