Acute Aortic Regurgitation due to Rupture of an Aortic Valve Commissure

Koji Kawago＊,＊＊	Takehito Mishima＊	Takashi Wakabayashi＊
Yuko Tosaka＊	Satoshi Nakazawa＊

（Department of Cardiovascular Surgery, Niigata City General Hospital＊, Niigata, Japan, and Department of Cardiovascular Surgery, Tokyo Medical University Hospital＊＊, Tokyo, Japan）

Here, we report a patient who underwent surgery for acute aortic regurgitation（AR）due to rupture of an aortic valve commissure. The patient was a 51-year-old man who had undergone ascending aorta replacement for acute type A aortic dissection 6 years previously. He presented with a 2-day-history of headache and insomnia. Echocardiography showed only AR initially. However, 2 days later, a vegetation-like mass was noted at the aortic valve commissure on transesophageal echocardiography. We diagnosed AR associated with infective endocarditis, and decided to perform aortic valve replacement immediately. During surgery, we found that the cause of AR was rupture of the aortic valve commissure without infection. The cause of rupture in this case was suspected to be traumatic or myxomatous degeneration.

 

Jpn. J. Cardiovasc. Surg. 47:170-173（2018）

Keywords：rupture of an aortic valve commissure;acute aortic regurgitation;myxomatous degeneration;aortic valve replacement