作者对30名轰炸机飞行员进行模拟7500m 高空飞行前后血浆血栓素 B_2(TXB_2)、6-酮前列腺素 F_(1α)(6-K-PGF_(1α))、假性血友病因子(VWF)含量和心电图变化的研究,结果发现 TXB_2含量从飞行前平均0.4 6±0.10nmol/L 上升至飞行后的0.52±Q.12nmol/L,相差显著(P<0.05)。心率从73.04次/min 加快至105.11次/min,Q—T 间期从0.357缩短至0.309,分别具有显著差异(P<0.05,P<0.05)。但前一项和后两项变化无明显相关。心脏对缺氧甚为敏感,本组观察飞行员 Thirty bomber pilots simulated the levels of TXB_2, 6-K-PGF_ (1α) and VWF before and after the flight at 7500m. And ECG changes, the results showed that the content of TXB_2 increased from 0.4 6 ± 0.10nmol / L before flight to 0.52 ± Q.12nmol / L after flight, with a significant difference (P <0.05). The heart rate accelerated from 73.04 times / min to 105.11 times / min, and the Q-T interval decreased from 0.357 to 0.309, showing significant difference (P <0.05, P <0.05). However, there was no obvious correlation between the previous two changes. The heart is very sensitive to hypoxia, the group observed pilots