Valve regurgitation is a condition in which valves don't close tightly, allowing blood to flow backward across the valve. Symptoms include shortness of breath, fatigue and heart palpitations.
瓣膜回流是由于瓣膜关闭不全，致使血液通过瓣膜回流，症状包括呼吸短促、疲劳和心悸。
Valve regurgitation is a condition in which valves don't close tightly, allowing blood to flow backward across the valve. Symptoms include shortness of breath, fatigue and heart palpitations.
瓣膜回流是由于瓣膜关闭不全，致使血液通过瓣膜回流，症状包括呼吸短促、疲劳和心悸。
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