机构地区:[1]苏州大学医学院内科专业,215006 [2]同济大学附属上海市肺科医院肺循环科 [3]同济大学附属上海市肺科医院肺功能室
出 处:《中华医学杂志》2014年第32期2490-2494,共5页National Medical Journal of China
基 金:上海市科研计划项目(11411951302、114119a3000)
摘 要:目的:探讨肺动脉高压患者次极量运动参数与峰值摄氧量( P-VO2)的相关性。方法回顾性分析2010年10月至2013年10月在同济大学附属上海市肺科医院住院治疗的106例肺动脉高压患者(肺动脉高压组)的临床资料,包括肺功能、氨基末端脑利钠肽前体( NT-proBNP )测定、6 min步行试验、右心导管检查及心肺运动试验的结果资料,并以同期无吸烟史、无心肺疾病及基线资料匹配的20名健康志愿者为对照组进行对比分析。结果肺动脉高压组的P-VO2、无氧阈( AT)、摄氧效率斜率(OUES)和摄氧效率平台(OUEP)均显著低于对照组[(841±257)比(1682±284)ml/min、(661±171)比(1041±243)ml/min、1.1±0.4比2.3±0.4和25.8±5.2比35.5±4.0],各参数占预计值的百分比(%预计值)也均显著低于对照组(均P<0.001)。而最低通气效率[分钟通气量( VE)与CO2排出量(VCO2)比值的最低值(L-VE/VCO2)]和VE/VCO2斜率显著高于对照组(50.5±15.9比30.5±3.0和57.2±23.2比25.6±2.8,均P<0.001)。 Pearson相关分析显示,除VE/VCO2斜率%预计值外,AT%预计值、L-VE/VCO2%预计值、OUES%预计值及OUEP%预计值均与P-VO2%预计值相关(均P<0.001)。多重线性回归发现,只有AT%预计值与OUES%预计值是P-VO2%预计值的独立预测指标(β=0.394和0.384,均P<0.001),且OUES%预计值对运动耐力的影响更大(校正β=0.674)。当AT%预计值以58.0%为分界点、OUES%预计值以65.0%为分界点时,诊断肺动脉高压患者运动耐力严重降低的敏感度和特异度分别为92.3%、96.2%和81.2%、75.5%。结论肺动脉高压患者的运动耐力降低,次极量运动参数OUES%预计值及AT%预计值可作为评估运动耐力的独立预测指标,且OUES%预计值预估价值可能更高。Objective To explore the correlation between submaximal exercise measurements and peak oxygen uptake in patients with pulmonary arterial hypertension (PAH). Methods The clinical data were retrospectively analyzed for 106 patients with PAH from Affiliated Shanghai Pulmonary Hospital, Tongji University from October 2010 to October 2013. The examinations included routine pulmonary function test, N-terminal pro-brain natriuretic peptide ( NT-proBNP), 6-minnte walk test, right heart catheterization and cardiopulmonary exercise testing. And within the same period, matched 20 healthy subjects without smoking and cardiopulmonary diseases were selected as control group. Results Peak oxygen uptake ( P-VO2 ), anaerobic threshold (AT), oxygen uptake efficiency slope (OUES) and oxygen uptake efficiency plateau (OUEP) were significantly lower in patients with PAH than control group ((841±257)vs(1682±284)ml/min、(661±171)vs(1041±243)ml/min、1.1±0.4vs2.3±0.4and25.8±5.2vs35.5±4.0,respectively) ( all P 〈0. 001 ). And the predicted parametric values ( % pred) were also lower in PAH group than control group ( all P 〈 0. 001 ). While the lowest ventilation ( VE)/CO2 output ( VCO2 ) ( L-VE/ VCO2 ) and VE/VCOz slope were significantly higher in PAH group than control group (50. 5 ±15.9 vs 30. 5±3.0 and 57.2±23.2 vs 25.6 ±2. 8, both P 〈0. 001 ). Pearson correlation analysis showed, except for VE/VCOz slope% pred, AT% pred, L-VE/~CO2 % pred, OUES% pred and OUEP% pred were correlated with P-VO2 (all P 〈 0. 001 ). According to multiple linear regression analysis, only AT% pred and OUES% pred were the independent predictors of P-VO2 ( β = 0. 394, 0. 384, both P 〈 0. 001 ) and OUES% pred might be better than AT% pred ( the adjusted 13 = 0. 674). When AT% pred 〈 58.0% or OUES% pred 〈 65.0%, exercise capacity in PAH declined obviously with the sensitivity was 92. 3% and 96. 2% and the specificity 81.2% and 75.5% respectively. Conclu
关 键 词:高血压 肺性 运动试验 心脏导管插入术 次极量运动
分 类 号:R544.1[医药卫生—心血管疾病]
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