Purpose: To find the predictive factors of low cardiac output after mitral and aortic valve operation combined with tricuspid annuloplasty of tricuspid valve lesion.
探讨影响二尖瓣、主动脉瓣并三尖瓣病变术后低心输出量综合征（低心排）的因素以及三尖瓣的处理问题。
Do not use in any dog that has evidence of cardiac output failure due to aortic stenosis.
不要使用任何狗，它具有心输出量衰竭的主动脉瓣狭窄的证据。
Do not use in any dog that has evidence of cardiac output failure due to aortic stenosis.
不要使用任何狗，它具有心输出量衰竭的主动脉瓣狭窄的证据。
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