A rare Mechanical prosthetic valve dysfunction.
A rare case of mechanical prosthetic valve dysfunction in mitral position. The mechanical valve opened once every two cardiac cycles. We also found the opening time of the mechanical valve in aortic positions was long and short alternately because of the Left ventricular volume changed every cardiac cycles.
State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National center for Cardiovascular Diseases, Chinese Academy of Medical Sciences And Peking Union Medical College. Beijing, 100037, People's Republic of China.
Yan
Y
Sun
State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National center for Cardiovascular Diseases, Chinese Academy of Medical Sciences And Peking Union Medical College. Beijing, 100037, People's Republic of China.
Hui Ming
HM
Zhang
State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National center for Cardiovascular Diseases, Chinese Academy of Medical Sciences And Peking Union Medical College. Beijing, 100037, People's Republic of China. fwwangh@163.com.
Hao
H
Wang
D000328:Adult; D017548:Echocardiography, Transesophageal; D005260:Female; D006350:Heart Valve Prosthesis; D006351:Heart Valves / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D006801:Humans; D011475:Prosthesis Failure