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作 者:黄思贤[1] 谭新洪[1] 李明耻[1] 彭锦泉[1] 韩绮文 王素萍[1] 廖小兰[1]
机构地区:[1]广东省人民医院呼吸内科
出 处:《岭南心血管病杂志》1996年第1期14-17,56,共5页South China Journal of Cardiovascular Diseases
摘 要:本文比较慢性阻塞性肺疾患(COPD)男性患者25例,对照组6例及风湿性二尖瓣病变(MVD)女性患者23例,对照组10例的运动心肺功能测验反应的特点.COPD患者受限于通气能力减低;通气需要增加.表现为VO2max,(VO2/HR)max及BRmax减低,DImax及VD/VTmax增加,通气储备耗尽;而VO2~HR斜率正常.AT正常或不能检出.MVD患者因心输出量减低,氧的运输受限,致使VO2max、(VO2/JHR)max及AT减低,VO2~HR斜率变陡呈低氧耗高心率改变,反之通气储备BRmax及DImax正常.Abstract:A comparison was made in performing exercise testing between COPD (25 male pts vs 6 controls) and MVD (23 female pts vs 10 controls). Exercise in COPD pts was limited to a decreased ventilatory capacity with an increased ventilatory requirement.It showed, a reduction of VO2 max, VO2/HRmax and BRmax, and an increase in DImax and VD/VTmax, resulting in breathing reserve exhaustion, but VO2—HR slope showed normal and AT normal or undetected. In contrast to COPD. exercise in MVD pts was limited to an increase in stroke volume and cardiac output and an inadequacy of oxygen delivery to the working muscle. VO2max,VO2/HRmax and AT were reduced. VO2—HR slope was steeped that means low oxygen consumption and high heart rate, but breathing reserve was normal in BRmax and DImax
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