大動脈四尖弁の1例  [in Japanese] Quadricuspid Aortic Valve  [in Japanese]

症例は43歳・女性,心雑音精査目的に当院循環器内科へ紹介となった.経胸壁,経食道心エコー,大動脈造影およびMDCTにて大動脈四尖弁による大動脈弁閉鎖不全症および上行大動脈瘤と診断され,大動脈弁置換術,上行大動脈置換術を施行された.大動脈四尖弁は大動脈弁機能異常の原因となる稀な疾患であるが,術前画像診断にてその形態を正確にとらえることにより合併症なく手術を施行することができた.

A 43-year-old woman was admitted with heart murmur. Transthoracic echocardiography (TTE) and aortgraphy revealed severe aortic regurgitation and also transesophageal echocardiography (TEE) and multi-row detector computed tomography (MDCT) demonstrated quadricuspid aortic valve. Combined cardiac surgery such as aortic valve replacement and replacement of the ascending aorta was successfully performed. Quadricuspid aortic valve is a rare anomaly. MDCT is a useful device for the morphological and functional evaluation of the aortic valve disease non-invasively.