Martínez-Ríos M A, Romero H, Gil M
Arch Inst Cardiol Mex. 1982 Nov-Dec;52(6):469-75.
Twenty two patients with rheumatic mitral stenosis and 12 healthy individuals were studied, using the following parameters: 1) Basal (B), Medial (M) and apical (A) mean velocity of circunferential shortening (VMAC); 2) Ejection fraction (EF); 3) Mid-systolic ejection fraction (FE 50); 4) Relative ejection fraction (REF = FE 50/FE). The student T comparing the patients with mitral stenosis to the control group showed statistical difference in all the parameters studied, but in the M and A, VMAC. In 13 patients (59%) the EF and the REF were found diminished, on the other hand, the EF 50 was definitively abnormal in 19 patients (86%). Twenty one patients (96%) showed abnormalities at least in two of the mentioned parameters and finally, only one had normal ventricular function. We conclude that the ejection ventricular function studied with "regional" indexes is almost always abnormal in patients with mitral stenosis.
对22例风湿性二尖瓣狭窄患者和12名健康个体进行了研究，采用以下参数：1）圆周缩短平均速度的基础值（B）、中间值（M）和心尖值（A）（VMAC）；2）射血分数（EF）；3）收缩中期射血分数（FE 50）；4）相对射血分数（REF = FE 50/FE）。将二尖瓣狭窄患者与对照组进行学生t检验，结果显示，在所有研究参数中均存在统计学差异，但M和A、VMAC除外。另一方面，13例患者（59%）的EF和REF降低，而19例患者（86%）的EF 50明显异常。21例患者（96%）至少在上述两个参数中表现异常，最终只有1例心室功能正常。我们得出结论，二尖瓣狭窄患者采用“区域”指标研究的心室射血功能几乎总是异常的。
