摄氧效率与肺动脉高压患者运动耐力的相关性  被引量:2

Correlation between oxygen uptake efficiency and exercise capacity in pulmonary hypertension patients

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作  者:刘辉[1] 刘锦铭[2] 郭建[3] 杨文兰[3] 史小芳[3] 赵勤华[2] 王岚[2] 

机构地区:[1]同济大学医学院,上海200092 [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》2015年第6期420-424,共5页National Medical Journal of China

基  金:中华医学会临床医学研究专项(08020420120);上海市科研计划项目(114119a33000,11411951302)

摘  要:目的探讨摄氧效率与肺动脉高压患者运动耐力的相关性。方法收集2010年10月至2014年1月在上海市肺科医院就诊的稳定期肺动脉高压患者76例为肺动脉高压组,并按照世界卫生组织(WHO)功能分级进行分级;选择同时期健康体检者29名作为健康对照组。对所有受试者进行肺功能检测和症状限制性功率递增方案下的心肺运动试验检测,并按逐次呼吸法对呼吸交换参数进行收集和分析。结果肺动脉高压组用力肺活量(FVC)占预计值百分比(%预计值)、第1秒用力呼气量(FEV,)%预计值、FEV,/FVC均显著低于健康对照组[(81.9±15.5)%、(75.0±16.4)%、(78.3±9.3)%比(88.6±14.1)%、(85.2±17.2)%及(88.3±7.3)%,均P〈0.05]。肺动脉高压组摄氧效率斜率(OUES)、摄氧效率平台(OUEP)及无氧阈摄氧效率[(1.14±0.42)(L/min)/lg(L/min)、(27±5)ml/L及(24±6)ml/L]均显著低于健康对照组[(2.32±0.34)(L/min)/lg(L/min)、(37±4)mL/L及(34±5)ml/L](均P〈0.05);除WHO功能分级I级与Ⅱ级比较外,其他各级患者间OUES、OUEP及无氧阈摄氧效率差异均有统计学意义(均P〈0.05)。肺动脉高压组OUES、OUEP和无氧阈摄氧效率与峰值摄氧量均呈正相关(r=0.80、0.65、0.60,均P〈0.001)。结论肺动脉高压患者摄氧效率显著低于健康人,且与患者运动耐力呈显著正相关。Objective To explore the characteristics of oxygen uptake efficiency (OUE) in patients with pulmonary hypertension (PH) and analyze the correlation between OUE and exercise capacity. Methods A total of 76 PH patients and 29 healthy controls at Shanghai Pulmonary Hospital between October 2010 and January 2014 were evaluated. All PH patients were classified into 4 groups according to the World Health Organization functional class (WHO-FC). Pulmonary function and cardiopulmonary exercise tests were performed in all subjects. Results Compared with health control, the PH patients had lower forced vital capacity (FVC) of expected value (% pre) , forced expiratory volume in one second (FEV,)% pre and FEV1/FVC ((81.9+_15.5)% vs (88.6 +-14.1)%, (75.0+_16.4)% vs (85.2+_17.2)% and (78.3+_ 9. 3 ) % vs ( 88.3 +_ 7.3 ) % , all P 〈 0. 05 ) . Compared with control group, there were also significant reductions in oxygen uptake efficiency slope (OUES), oxygen uptake efficiency plateau (OUEP) and OUE at the anaerobic threshold ( (1.14 ±0. 42) vs (2. 32 ±0. 34) (L/min)/lg(L/min), (27 ±5) vs (37 ±4) ml/L, (24 ±6) vs (34 ±5) ml/L, all P 〈0. 05). No significant differences existed in OUES, OUEP and OUE at the anaerobic threshold in PH patients between WHO-FC I and WHO-FC I] groups. There were significant differences in OUE among other groups ( all P 〈 0. 05 ). And OUES, OUEP and OUE at the anaerobic threshold were correlated positively with exercise tolerance in PH patients. Conclusion OUE significantly declines in PH patients compared with normal subjects and it is correlated positively with exercise capacity.

关 键 词:高血压 肺性 运动试验 通气效率 摄氧效率 

分 类 号:R544.1[医药卫生—心血管疾病]

 

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