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本文旨在研究与风湿性心脏病心房颤动有关的组织学、血流动力学和环化核甙酸浓度变化。方法:18例有显著二尖瓣狭窄的患者,平均年龄48.8±8.6岁,女12例,男6例。根据心律分成三组:Ⅰ组7例,为窦性;Ⅱ组5例,为间歇性心房颤动;Ⅲ组6例,为慢性心房颤动。心脏手术前用M 型超声心动图测定左房大小。心导管检查测定心排出量、肺毛细血管楔嵌压和左室压、二尖瓣压力阶差和二尖瓣面积。此外,借 X 线透视以明确有无二尖瓣钙化。在二尖瓣换置手术时,将左心耳切下,并
This article aims to investigate the changes in histology, hemodynamics, and cyclic nucleotide concentrations associated with atrial fibrillation in patients with rheumatic heart disease. Methods: 18 patients with significant mitral stenosis, mean age 48.8 ± 8.6 years, 12 females, 6 males. According to the heart rate, the patients were divided into three groups: group Ⅰ, 7 cases were sinus; group Ⅱ, 5 cases were intermittent atrial fibrillation; group Ⅲ, 6 cases were chronic atrial fibrillation. Left atrial size was measured by M-mode echocardiography before cardiac surgery. Cardiac catheterization measures cardiac output, pulmonary capillary wedge pressure and left ventricular pressure, mitral valve pressure gradient, and mitral valve area. In addition, X-ray fluoroscopy to clear the presence of mitral valve calcification. In mitral valve replacement surgery, the left atrial appendage was excised, and