摘要目的:探讨冠心病患者握力、功能肺活量(FVC)、第一秒用力呼吸量(FEV1)、呼气峰流速(PEF)、6 min步行距离(6MWD)、左心室射血分数(LVEF)的相关性。方法:回顾性收集2017年1月至2018年12月北京医院心内科住院的冠心病患者35例，年龄(70.4±10.6)岁，根据年龄分为非老年组(<65岁)8例，老年组(≥65岁)27例。入院后完成双手握力、6MWT和超声心动及简易肺功能FVC、FEV1和PEF检测。出院3个月后门诊复查上述指标，对两次结果进行比较，分析FVC、FEV1、PEF、6MWD、握力、LVEF的一致性和相关性。结果:患者入院和出院后3个月FVC、FEV1、PEF、6MWD、左手握力、右手握力和LVEF比较，差异无统计学意义(均 P>0.05)。Pearson二变量相关分析结果显示，FVC、FEV1、PEF、左手握力和右手握力间两两相关(均 P<0.01)。6MWD与LVEF无相关性( P>0.05)。LVEF与FVC和FEV1相关(均 P<0.01)，与PEF、6MWD、握力无相关性( P>0.05)。老年组较非老年组患者FVC[(2.11±0.66)L比(2.88±0.55)L]、FEV1[(1.74±0.46)L比(2.62±0.49)L]、PEF[(5.50±1.79)m/s比(8.22±1.59)m/s]、6MWD[(332.07±115.58)m比(446.14±99.81)m]、左手握力[(25.14±7.87)比(35.15±8.30)]和右手握力[(27.37±8.39)kg比(38.37±10.20)kg]低(均 P<0.01)；LVEF比较差异无统计学意义( P>0.05)。 结论:对冠心病患者，采用握力、简易肺功能和6MWT进行综合测试，有助于评估患者整体机能。老年冠心病患者FVC、FEV1、PEF、6MWD和握力更低。

abstractsObjective:To investigate the clinical significance of grip strength, three simple lung functions[functional volume capacity(FVC), forced expiratory volume in the first second(FEV1)and peak expiratory flow(PEF)], 6-minute walking distance test(6MWD)and left ventricular ejection fraction(LVEF)for assessing overall integrative function in elderly versus non-elderly patients with coronary artery disease(CAD).Methods:A total of 35 hospitalized CAD patients aged 70.4±10.6 years from January 2017 to December 2018 were retrospectively enrolled.Patients were divided into the non-elderly group(<65 years, n=8)and the elderly group(≥65 years, n=27). FVC, FEV1 and PEF were tested by a portable lung function machine.The grip strength, 6MWD, three simple lung functions(FVC, FEV1, PEF), LVEF and echocardiography were detected after admission.The above indexes were re-examined in outpatient clinic at 3 months after discharge.The results of above indexes were compared at admission versus at three months after discharge.The consistency and correlation between FVC, FEV1, PEF, 6MWD, grip strength and LVEF were analyzed.Results:The detected results of FVC, FEV1, PEF, 6MWD, left-hand grip strength, right-hand grip strength and LVEF showed no significant difference at admission versus at 3 months after discharge( P>0.05)in a total of 35 hospitalized CAD patients.Pearson bivariate correlation analysis showed that FVC, FEV1, PEF, left-hand and right-hand grip strength had pairwise correlation between them( P<0.01).6MWD had no correlation with LVEF.And LVEF was related with FVC and FEV( P<0.01), but not related with PEF, 6MWD and grip strength( P>0.05). The detective values of FVC, FEV1, PEF, 6MWD, left-hand and right-hand grip strength were lower in the elderly group than in the non-elderly group[(2.11±0.66 )L vs.(2.88±0.55) L, (1.74±0.46 )L vs.(2.62±0.49 )L, (5.50±1.79 )m/s vs.(8.22±1.59) m/s, (332.07±115.58)m vs.(446.14±99.81 )m, (25.14±7.87) vs.(35.15±8.30), (27.37±8.39 )kg vs.(38.37±10.20)kg, P<0.01]. LVEF had no significant difference between the two age groups. Conclusions:FVC, FEV1, PEF, 6MWD and grip strength are lower in elderly group than in non-elderly group.A comprehensive set of tests of grip strength, three simple lung function and 6MWT is helpful to evaluate the overall integrative function in elderly CHD patients.