胃食管返流疾病通常由于瓣膜的虚弱而使胃酸倒流至食管，主要的症状为胃灼热。
GERD is an ailment of the stomach and esophagus that occurs when stomach acid backs up into the esophagus due to a weak valve.
目的：研究左心扩大性疾病瓣膜返流情况、心腔形态学改变以及心功能的变化。
Objective The purpose of the investigation was to study valvular regurgitation, morphological changes and left ventricular function in patients with left ventricular enlargement.
二尖瓣返流是心脏疾病最主要的发病之一。
Mitral regurgitation is one of the most serious heart diseases.
结论任何引起二尖瓣器质损害的疾病都能导致二尖瓣返流，主动脉瓣返流原因主要为瓣膜退行性变。
Conclusion Any disease which arose the mitral structure harm will lead to the mitral regurgitation. The main pathogeny of aortic regurgitation I...
结论任何引起二尖瓣器质损害的疾病都能导致二尖瓣返流，主动脉瓣返流原因主要为瓣膜退行性变。
Conclusion Any disease which arose the mitral structure harm will lead to the mitral regurgitation. The main pathogeny of aortic regurgitation I...
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