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通过测定33例早搏患者早搏前后心动PEP/LVET的变化来反映早搏后强化作用,其中24例冠心病测定结果表明心功能损害较重者,强化作用较明显,以此可以估价心肌储备功能,讨论了早搏后强化作用下PEP、LVET和PEP/LVET的变化及其发生机理。
The changes of heartbeat PEP / LVET before and after premature beat were measured in 33 patients with premature beats to reflect the potentiating effect after premature beat. The results of 24 patients with coronary heart disease showed that the patients with severe cardiac dysfunction had stronger potentiation, so as to evaluate myocardial reserve function. The changes of PEP, LVET and PEP / LVET after premature beat and their mechanism of action.