The value of cardiopulmonary exercise testing in patients with myocardial ischemia
DENG Si-jian
YUAN Gui-ying
WU Hui-hong
ZHONG Hai-bo
YU Hui-wen
WANG De-xi
Abstract：Objective To investigate the value of cardiopulmonary exercise testing in patients with myocardial ischemia. Methods Fifty-two patients with chest pain were divided into two groups according the results of 99Tcm-MIBI stress-rest perfusion imaging: ischemia group and non- ischemia group. All patients received cardiopulmonary exercise testing and noninvasive echocardiography. The differences of cardiopulmonary exercise testing data were evaluated. Results No significant difference in age, gender, body weight index, E/A and EF between two groups. Compared to non-ischemia group, VO2 peak/kg[(27 ±6)ml/(kg · min) vs (33 ±7)ml/(kg · min) ,P＜0.01], VO2 peak[(1.5 ±0.5)L/min vs (2.1 ±0.5)L/min,P＜0.01],VO2 peak/HR[(10.7 ±2.6) ml/beat vs (14.1 ±3.0)ml/beat,P ＜0.01],HR[(143 ± 15)beats/min vs (154 ± 17)beats/min,P ＜0.05]and AT[(16.4 ±3. 0) ml/( kg · min) vs ( 20.6 ± 5. 0) ml/( kg · min) , P ＜ 0. 01], VO2 peak/HR @ AT in eardiopulmonary exercise [(9.0 ± 1.8) m l/beat vs (11.3 ±2.3) ml/beat, P ＜0.01]in ischemia group were significant decreased.Conclusion VO2 peak/Kg, VO2 peak, VO2peak/HR, AT and VO2/HR @ AT have potential value in early discovery of myocardial ischemia.
Keywords：Myocardial ischemiaCardiopulmonary exercise testingMyocardial perfusion imaging
Publication Date：2011-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)