Babic U U, Popovic Z, Grujicic S, Pejcic P, Djurisic Z, Vucinic M
Center for Cardiovascular Surgery Dr. Dragisa Misovic, Beograd, Yugoslavia.
Cardiology. 1991;78(4):311-6. doi: 10.1159/000174810.
We measured pulmonary and systemic flows in 22 patients with mitral stenosis and in 7 controls. In patients with mitral stenosis, pulmonary flow index averaged 2.33 +/- 0.41 l/min/m2 and systemic flow index averaged 2.15 +/- 0.60 l/min/m2, p = 0.045. There was a strong correlation between the difference in pulmonary and systemic flow indexes and the difference in mean left and right atrial pressure (r = 0.749, p = 0.00008). After a successful dilatation in 17 patients, there was a significant drop in the difference between pulmonary and systemic flow indexes (0.26 +/- 0.41 vs. 0.07 +/- 0.37 l/min/m2, p = 0.048). We conclude that chronic elevation of left atrial pressure leads to a left to right shunt probably through bronchial veins.
我们测量了22例二尖瓣狭窄患者及7例对照者的肺循环和体循环血流量。二尖瓣狭窄患者的肺循环血流指数平均为2.33±0.41升/分钟/平方米，体循环血流指数平均为2.15±0.60升/分钟/平方米，p = 0.045。肺循环和体循环血流指数的差值与平均左、右心房压力的差值之间存在强相关性（r = 0.749，p = 0.00008）。17例患者成功扩张后，肺循环和体循环血流指数的差值显著下降（0.26±0.41对0.07±0.37升/分钟/平方米，p = 0.048）。我们得出结论，左心房压力的慢性升高可能通过支气管静脉导致左向右分流。
