Parra B, Barboza J S, Inglessis G, Fuenmayor A
Arch Inst Cardiol Mex. 1981 Jul-Aug;51(4):341-51.
We studied 19 patients (13 women and 6 men), with pure mitral stenosis by cineangiocardiograms taken in the right anterior 30 degrees oblique projection. Seven patients were also studied by single element M mode echocardiography in monoplane projection. We observed a significative diminution in the wall thickness and mass of the left ventricle in those patients in which the mitral valvular area was less than 1 cm2/m2. These results were interpreted as due to a global diminution in the cardiac mass induced by a reduction in the wall thickness of the left ventricle in all segments. When the patients with diminished mass were grouped by age, no correlation between chronicity and diminished mass was observed. We concluded that the diminution of the left ventricular mass in pure, severe mitral stenosis has a multifactorial etiology; the prolonged immobility of some myocardial segments could play a role, but the fibrosis secondary to acute or chronic myocarditis could be more important.
我们对19例患者（13名女性和6名男性）进行了研究，这些患者通过右前斜30度投影的心血管造影术诊断为单纯二尖瓣狭窄。其中7例患者还通过单平面单晶体M型超声心动图进行了研究。我们观察到，二尖瓣瓣口面积小于1cm²/m²的患者左心室壁厚度和质量显著降低。这些结果被解释为所有节段左心室壁厚度减少导致心脏整体质量下降。当按年龄对质量降低的患者进行分组时，未观察到病程与质量降低之间的相关性。我们得出结论，单纯严重二尖瓣狭窄患者左心室质量降低具有多因素病因；一些心肌节段的长期不动可能起一定作用，但急性或慢性心肌炎继发的纤维化可能更为重要。
