摘要
【目的】了解右胸电导纳容积图 (RCEAP)检测左向右分流先天性心脏病 (先心病 )体外循环手术前后小循环心功能指标变化情况。【方法】应用RCEAP观察左向右分流先心病小循环心功能指标。【结果】体外循环手术前后观察表明 ,术后早期Q j与j z间期均缩短 ,以j z间期缩短为主 ,致Q j/j z比值升高 ,而术后 7～ 10d ,j z间期稍回升 ,Q j稍下降 ,致Q j/j z比值下降。主波幅 (hZ)与次波幅 (hC)之间的比值hC/hZ与PCWP呈显著相关 (r =0 7947,P <0 0 1)。【结论】RCEAP有无创、操作简便、费用低廉、可重复检测等优点 ,在左向右分流先心病中的应用有较大的应用价值和较好的使用前景。
Objective To investigate the change of lesser heart functional parameter of left to right shunt congenital heart defects(L R CHD) by lesser circulation heart functional tests with right chest electric admittance plethysmography(RCEAP) before and after the bypass circulation operation. Methods Measure the lesser heart functional parameter of L R CHD by RECAP. Results Statistic analysis to the lesser circulation heart function date, of pre and post operation found that Q j and j z interval were shortened,and j z interval was markedly shortened resulting in significant increased of Q j/j z ratio during 1～3 d after operation. 7～10 d after operation j z interval lengthened and Q j/j z ratio has begin to decrease but not yet to normal level. The correlation analysis of date demonstrated the PCWP was highly correlated with hC/hZ ratio (r=0 7947, P<0 01). Conclusion RCEAP is a non invasive and useful new method in assessing the heart function by using the more sensitive parameters, and it has great practical value and foreground in L R CHD.
出处
《中山医科大学学报》
CSCD
2000年第2期140-143,共4页
Academic Journal of Sun Yat-sen University of Medical Sciences
关键词
先天性心脏病
电导纳容积法
心功能
heart bypass
heart defects,congenital / pathophysiology
ventricular function
pulmonary circulation / physiology
electric admittance plethysmography
