Mechanical interaction between the ventricles during systole.
Mechanical interaction between the ventricles during systole.
复制标题
收缩期间心室之间的机械相互作用。
DOI：
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发表时间：
1977
影响因子：
2.1
通讯作者：
D. Jones
中科院分区：
文献类型：
--
作者：
B. Langille;D. Jones
两个脑室功能的突然改变对两个脑室的压力的直接影响已经在兔身上进行了检验。主动脉阻断后，左室后负荷增加，左室峰压显著升高(由79.4 ± 3.4 Hg增加44.0 ±5.7 )，同时右室压显著升高(由24.2 ± 1.4 mm Hg增加3.8 ± 0.6 mm Hg)。另一方面，当前负荷的突然变化引起类似的左室压升高时，右室压没有变化。将生理盐水高频振荡注入左心室，在收缩期间，两个心室压力产生一致的振荡。右室功能的干预改变了后负荷或前负荷，影响了左心室压力的产生，尽管在正常生理压力下交互作用很小，但存在显著的交互作用。
The immediate effect of abrupt alteration in the function of either ventricle on pressures in both ventricles has been examined in rabbits. Increasing left ventricular afterload, by aortic occlusion, caused a marked increase in peak left ventricular pressure (an increase of 44.0 ± 5.7 mmHg, from a mean of 79.4 ± 3.4 mmHg) and simultaneously a significant increase (an increase of 3.8 ± 0.6 mmHg, from a mean of 24.2 ± 1.4 mmHg) in right ventricular pressure. On the other hand, when similar increases in left ventricular pressure were induced by sudden changes in preload no alteration in right ventricular pressure was seen. High-frequency oscillatory infusion of saline into the left ventricle produced coincident oscillations in both ventricular pressures during systole. Left ventricular pressure generation was affected by interventions with right ventricular performance which altered afterload or preload and, although interaction was minimal at normal physiological pressures, a significant interaction was obs...