본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Echocardiographic characteristics of the cryopreserved allograft aortic valve replacement assessed by intraoperative transoesophageal echocardiography

Hasegawa, J. ; Kitamura, S. ; Kawata, T. ; Kawachi, K. ; Niwaya, K. ;
  • 초록  

    Abstract Improvements in cryopreservation techniques have made possible excellent long-term results using aortic valve allografts. Few studies, however, have examined the echocardiographic characteristics of allograft aortic valves and postoperative valve function. Aortic allograft function was eveluated in 16 patients by intraoperative transoesophageal echocardiography, postoperative catheterization, and angiography. The mean(s.d.) coaptation zone length of the allograft leaflet was significantly greater (7.3(1.4) mm) than that of the normal aortic valve (3.2(0.8) mm) ( P < 0.01). No regurgitation was noted in any patients with coaptation zone length of 7–11 mm ( P < 0.01). The increment of the leaflet coaptation zone length did not produce a significant pressure gradient during exercise and appeared to be one of the important mechanisms for the prevention of postoperative aortic regurgitation, because commissural orientations may be distorted in the new aortic position. This finding is consistent with the report that allografts with the largest diameter implantable in the recipient annulus should be selected for use.


  • 원문보기

    원문보기
    무료다운로드 유료다운로드
    • 무료 원문 정보가 존재하지 않습니다.

    유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

    NDSL에서는 해당 원문을 복사서비스하고 있습니다. 아래의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

  • 주제어

    cryopreserved aortic allograft .   coaptation zone length .   transoesophageal echocardiography .   aortic valve replacement.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역