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本文对１８例原因不明的晕厥患者和１５例无晕厥病史的正常人进行了研究。８例患者（４４％）在倾斜试验１８±７ｍｉｎ时出现阳性，对照组无一例阳性（Ｐ＜０．０１）。试验阳性患者收缩压从１４．４±２ｋＰａ（１０８±１５ｍｍＨｇ）降至８±２．２７（６０±１７ｍｍＨｓ）ｋＰａ（Ｐ＜０．０１），心率从７８±２３次／分增至８７±１７次／分（Ｐ＞０．０５）。倾斜试验期间，无任何临床症状可预测晕厥的发生。对照组试验前后心率及血压无明显差异（Ｐ＞０．０５）。倾斜试验对鉴别血管迷走性晕厥具有较好的诊断价值。该试验安全、无创、方便实用，是较理想的新的诊断方法。
In this paper, 18 patients with unexplained syncope and 15 normal subjects without a history of syncope were studied. Eight patients (44%) were positive at a tilt test of 18 ± 7 minutes and none in the control group (P <0.01). The systolic blood pressure decreased from 14.4 ± 2 kPa (108 ± 15 mmHg) to 8 ± 2.27 (60 ± 17 mmHs) kPa (P <0.01) in patients with positive test. Heart rate increased from 78 ± 23 to 87 ± 17 Times / min (P> 0.05). During the tilt test, no clinical symptoms predict the onset of syncope. There was no significant difference in heart rate and blood pressure before and after the control group (P> 0.05). Tilt test to identify vasovagal syncope has a good diagnostic value. The test safe, noninvasive, convenient and practical, is an ideal new diagnostic method.