Kentala E, Repo U K
Ann Clin Res. 1980 Feb;12(1):13-6.
The PQ-interval was measured while resting supine before exercise testing, in the erect position on the bicycle before starting exercise, and resting supine after exercise in 68 men 6--8 weeks after acute myocardial infarction. During a 6-year follow-up period the death was non-sudden (greater than 1 hour) in 25 of these patients. In this group the PQ-time was significantly shorter (p less than 0.001) during somatomotor activation on the bicycle before exercise than resting supine. The same directional change (p less than 0.01) was seen in the sudden death (less than 1 hour) group (N = 21), but not in the patients who survived. PQ-time at supine rest before exercise testing, however, was significantly shorter (p less than 0.02) in surviving patients than in the non-sudden death group. The possible mechanisms of these, and of previously reported changes in the R-wave amplitudes and QT-times, are discussed.
在68例急性心肌梗死后6 - 8周的男性患者中，于运动试验前仰卧休息时、开始运动前在自行车上直立位时以及运动后仰卧休息时测量PQ间期。在6年的随访期内，这些患者中有25例死亡并非猝死（超过1小时）。在这组患者中，运动前在自行车上进行躯体运动激活时的PQ时间显著短于仰卧休息时（p < 0.001）。在猝死（少于1小时）组（N = 21）中也观察到相同方向的变化（p < 0.01），但存活患者中未观察到。然而，运动试验前仰卧休息时的PQ时间，存活患者显著短于非猝死组（p < 0.02）。本文讨论了这些变化以及先前报道的R波振幅和QT时间变化的可能机制。
