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7条完全性房室传导阻滞(CHB)狗血液动力学研究表明,急性CHB时心排血量(CO)下降53%;18天后CO较前增加12%(P<0.01),右房、室压力则无明显改变(P>0.05)。提示CHB的临床后果与CHB发生急缓不无关系。
Seven hemodynamic studies in 7 dogs with complete atrioventricular block showed that the amount of cardiac output (CO) decreased 53% at acute CHB and 12% at 18 days (P <0.01) Room pressure was no significant change (P> 0.05). This suggests that the clinical outcome of CHB is not related to the rapid onset of CHB.