Mirrakhimov M M, Meĭmanaliev T S, Abdurasulov K D, Maksumov E Iu
Kardiologiia. 1985 Nov;25(11):85-9.
Electro- and echocardiographic studies were carried out in 708 male mountain-dwellers (at altitudes of 2800--4200 m) and 1047 male dwellers of lower altitudes (700--800 m), aged 30 to 59 years. One-hour ECG monitoring was conducted in 90 mountaineers. The latter population showed a high incidence of echocardiographically-confirmed signs of right-ventricular hypertrophy (RVH) of varying degrees. They also showed relatively high rates of heart rhythm and conductivity disorders (13.7% vs. 3.18% of low-altitude dwellers; p less than 0.001). As RVH gained in markedness, and as the recording time grew longer, the frequency of detected cardiac arrhythmias increased dramatically. RVH, arterial hypoxemia and pulmonary arterial hypertension are risk factors contributing to cardiac arrhythmias.
对708名年龄在30至59岁的男性山地居民（海拔2800 - 4200米）和1047名低海拔地区（700 - 800米）的男性居民进行了心电图和超声心动图研究。对90名登山者进行了1小时的心电图监测。后一组人群中，经超声心动图证实的不同程度右心室肥厚（RVH）的发生率很高。他们还表现出相对较高的心律和传导障碍发生率（分别为13.7%和低海拔居民的3.18%；p < 0.001）。随着RVH程度加重以及记录时间延长，检测到的心律失常频率急剧增加。RVH、动脉血氧不足和肺动脉高压是导致心律失常的危险因素。
