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17例慢性早期肺心病患者和10例慢支肺气肿患者安静时和运动负荷后的右室收缩时间间期测定发现,运动负荷后慢支肺气肿组和早期肺心病组患者的PEP有不同程度的延长,RVET缩短,而PEP/RVET比值增大,其中以早期肺心病组的变化尤为明显.两组之PEP、RVET、PEP/RVET均有显著性差异.分析右室收缩时间间期的变化可能与右室前后负荷增大有关.
17 patients with chronic early pulmonary heart disease and 10 patients with chronic bronchiectasis emphysema in resting and after exercise load right ventricular systolic time interval measured found that after exercise load chronic bronchitis group and early pulmonary heart disease group patients with PEP RVET was shortened and PEP / RVET ratio was increased, especially in the early stage of pulmonary heart disease.The changes of PEP, RVET and PEP / RVET in both groups were significant.Analysis of right ventricular systolic time Changes may be related to increased right ventricular load before and after.