论文部分内容阅读
目的 了解歼击机飞行员老年期心脏形态结构及功能 ,探讨歼击机飞行对心血管系统的可能存在的长期影响。 方法 应用彩色多普勒超声心动图对 40名男性老年期 (>6 0岁 )歼击机飞行员与 40名年龄、心率等心脏健康状况相匹配的地面军队老干部进行心脏组织形态结构指标、心室收缩、舒张功能敏感指标以及临床相关指标进行对比分析研究。 结果 左心室舒张及收缩末期内径、左房内径、左室舒张末期容积、左室后壁厚度、平均左室周径向心缩短率、室间隔厚度、左室重量指数、射血时间、心输出量和心每搏量两组间差别无显著性意义。左室收缩末容积、前 1/ 2充盈分数、前 1/ 3充盈分数、心室舒张早期血流充盈速度 (E)及 E/ A值、主动脉瓣口面积、环部、窦部内径均高于对照组(P<0 .0 5 ) ;射血分数、左室缩短分数、心脏指数及心房充盈分数均低于对照组 (P<0 .0 5 )。 结论 歼击机飞行员与地面人员相比 ,在老年期心血管功能及心脏组织形态学结构无显著病理改变。
Objective To understand the structure and function of fighter pilot’s senile heart morphology and to explore the long-term impact of fighter plane flight on cardiovascular system. Methods Color Doppler echocardiography was performed on 40 old veterans (> 60 years old) fighter pilots who were matched with age, heart rate and other heart health conditions. The changes of cardiac tissue morphology, ventricular systolic and diastolic parameters Functional sensitivity and clinical indicators related to comparative analysis. Results Left ventricular diastolic and end systolic diameter, left atrial diameter, left ventricular end-diastolic volume, left ventricular posterior wall thickness, average left ventricular circumferential radial shortening, interventricular septum thickness, left ventricular mass index, ejection time, cardiac output There was no significant difference between the two groups in the amount and stroke volume. Left ventricular end-systolic volume, the first 1/2 filling fraction, the first 1/3 filling fraction, early ventricular diastolic filling velocity (E) and E / A value, aortic valve area, annulus, In the control group (P <0.05), ejection fraction, left ventricular fractional shortening, cardiac index and atrial filling fraction were lower than those in the control group (P <0.05). Conclusion Compared with the ground crew, fighter pilots have no significant pathological changes in cardiovascular function and cardiac histomorphology in old age.