飞行人员无症状性脑梗死的初步随访观察

Preliminary follow-up study of military pilots with asymptomatic cerebral infarction

目的观察无症状性脑梗死（ACI）飞行人员的短期预后。方法随访经头颅核磁共振检查（MRI）诊断为ACI的22例飞行人员,观察ACI病灶的数量、急性症状性脑血管事件及任何原因停飞的发生情况,比较病灶增加者与未增加者ACI危险因素的差异。结果 22例ACI飞行人员随访6～42（14.18±8.55）个月,其中6例（18.18%）复查后病灶增多。所有随访人员均无神经功能缺损事件发生,3例非ACI原因停止飞行。病灶增加者与未增加者的年龄、飞行时间比较差异有统计学意义（P〈0.05）。结论部分飞行人员ACI病灶数目会增多,可能与年龄、飞行时间等有关,其远期对飞行的影响需进一步研究。

Objective To observe pilots with asymptomatic cerebral infarction （ACI） for their short-term prognosis. Methods Twenty-two pilots who were diagnosed having ACI by magnetic resonance imaging were enrolled in this study. When they returned to the hospital for regular reexamination, the number of ACI foci, the incidents of acute cerebrovascular disease and grounding of aircraft for any reasons were recorded. According to whether the ACI lesions increased, the patients were divided into two groups. The risk factors for cerebral vascular disease were compared between the two groups. Results All the patients were followed for 6-42 months （mean 14.18 ± 8.55 months）, and 6（18.18%） patients were found to have increase of lesions. No neurological deficit was seen in the two groups, although 3 flight crews were grounded for non-ACI reason. Age and flight time showed statistically significant differences between the lesions increased group and no lesion increased group. Conclusions The number ofACI foci of some pilots may increase, which is affected by age and flight time. Further investigations on the long-term prognosis and the impacts on flight are needed.