Cristal N, Peterburg I, Inbar-Yanai I
Br Heart J. 1979 Mar;41(3):350-3. doi: 10.1136/hrt.41.3.350.
In the case described, necrosis of the atrial musculature led to rupture of the chamber. This was overlooked for 4 days until the patient died of ventricular rupture. This unusual complication of atrial infarction may be amenable to surgical repair if recognised in time. The high gain recording of P waves in the presence of AV block made it possible to evaluate the P wave changes during atrial infarction: (1) changes in the configuration and width of the P wave, probably resulting from intra-atrial conduction defect; (2) depression of the PR segment (0.04 to 0.07 mV); and (3) a previously unrecorded convexity in the first portion of the PR segment, in the leads in which the depression of the PR segment was observed.
在所述病例中，心房肌坏死导致心房破裂。这一情况被忽视了4天，直到患者死于心室破裂。如果能及时识别，这种心房梗死的罕见并发症可能适合手术修复。在存在房室传导阻滞的情况下对P波进行高增益记录，使得评估心房梗死期间的P波变化成为可能：（1）P波形态和宽度的改变，可能是由于心房内传导缺陷所致；（2）PR段压低（0.04至0.07毫伏）；以及（3）在观察到PR段压低的导联中，PR段起始部分出现一种此前未记录到的凸起。
