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心肌缺血患者心肺运动试验特点 被引量:2

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摘要 目的:研究心肺运动试验(CPET)相关指标在心肌缺血患者的变化特点。方法:52例胸痛患者,分别行CPET、99mTc-MIBI心肌灌注显像检查及心脏彩色多普勒检查。根据心肌灌注显像检查结果分为心肌缺血组及非缺血组。比较两组患者之间CPET相关指标如每公斤体重峰摄氧量(VO2peak/kg)、峰摄氧量(VO2peak)、峰氧脉搏(VO2peak/HR)、最大呼吸频率(RR)、氧斜率(O2slope)、呼吸储备(BR)、最大心率(HR)、心率储备(HRreserve)和无氧阈(AT)、无氧阈时氧气通气当量(VE/VO2@AT)、无氧阈时二氧化碳通气当量(VE/VCO2@AT)、无氧阈时氧脉搏(VO2/HR@AT)以及彩色多普勒检查心脏二尖瓣口血流舒张早期峰值速度(E)与舒张晚期峰值速度(A)的比值(E/A值)和左室射血分数(EF值)。结果:两组患者之间年龄、性别构成、体重指数、E/A值及EF值均无统计学差异。心肌缺血组VO2peak/kg、VO2peak、VO2peak/HR、HR、AT、VO2/HR@AT低于非缺血组,差异具有统计学意义。结论:心肌缺血患者VO2peak/kg、VO2peak、VO2peak/HR、AT和VO2/HR@AT等心肺运动指标较非心肌缺血患者降低。
出处 《实用医学杂志》 CAS 北大核心 2011年第15期2749-2751,共3页 The Journal of Practical Medicine
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参考文献10

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