Pai G R, Rawles J M
Br Heart J. 1987 Jun;57(6):555-7. doi: 10.1136/hrt.57.6.555.
An 18 year old girl presented with frequent vasovagal attacks and sinus arrhythmia. The amplitude of respiratory sinus arrhythmia assessed by cosinor analysis was 20%; the predicted value for a normal girl of this age is 4% and the 95% confidence interval is 0-8%. Treatment with propantheline, in a dose sufficient to reduce the amplitude of sinus arrhythmia to normal, abolished her symptoms.
一名18岁女孩出现频繁的血管迷走性发作和窦性心律失常。通过余弦分析评估的呼吸性窦性心律失常幅度为20%;这个年龄正常女孩的预测值为4%,95%置信区间为0-8%。使用足以将窦性心律失常幅度降至正常的剂量的丙胺太林进行治疗后,她的症状消失了。