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该文用直立倾斜试验(head-up tilt test)对15例原因不明晕厥的患儿进行研究,其中女孩9例,平均年龄14.4岁(10～18岁),晕厥发作平均5.9次(1～20次),病程1周～9年(平均2.1年)。在非禁食的情况下,将标准的心脏监护装置联于患儿,以便连续监测心率和血压。起始患儿在检查床上仰卧休息10分钟并监护心率和血压,然后将患儿头高位倾斜60度,持续60分钟,同时进行监护。一旦症状出现,将患儿恢复至仰卧位,并中止试验。10例(6例男孩)无晕厥病史的健康儿童为对照组,平均年龄为14.5岁(11～18岁)。使用 Fisher 精确法进行统计学分析。
In this study, 15 children with unexplained syncope were studied in a head-up tilt test. Among them, 9 were girls, with an average age of 14.4 years (range 10-18 years) and an average of 5.9 episodes of syncope (range 1-20 Times), duration of 1 week to 9 years (mean 2.1 years). In the absence of fasting, a standard cardiac monitoring device is linked to the child for continuous monitoring of heart rate and blood pressure. The initial child in the examination bed supine rest for 10 minutes and custody of heart rate and blood pressure, and then tilt the child head high 60 degrees for 60 minutes, while monitoring. Once symptoms develop, the child is returned to supine position and the trial is aborted. Ten healthy children (6 boys) with no history of syncope had a mean age of 14.5 years (11-18 years). Fisher exact method was used for statistical analysis.