Journal of Chest Surgery

The Korean Society for Thoracic and Cardiovascular Surgery (대한심장혈관흉부외과학회)
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Changes of Mitral Regurgitation after Aortic Valve Replacement, according to the Aortic Valve Pathology

대동맥 판막 치환술 후 대동맥 판막 병변에 따른 승모판막 폐쇄부전의 변화

  • Kim, Si-Wook (Department of Thoracic and Cardiovascular Surgery, Chungbuk National University Hospital, Chungbuk National University College of Medicine) ;
  • Lee, Young-Tak (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Jun, Tae-Gook (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Sung, Ki-Ick (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Wook-Sung (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Yang, Ji-Hyuk (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Choi, Jin-Ho (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Park, Pyo-Won (Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • 김시욱 (충북대학교 의과대학 충북대학병원 흉부외과학교실) ;
  • 이영탁 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 전태국 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 성기익 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 김욱성 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 양지혁 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 최진호 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실) ;
  • 박표원 (성균관대학교 의과대학 삼성서울병원 흉부외과학교실)
  • Published : 2007.10.05
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Abstract

Background: Patients with severe aortic valve disease frequently display mitral valve regurgitation (MR). In such patients, the clinical course of MR after isolated aortic valve replacement (AVR) may be important for determining the treatment strategies. After isolated AVR, the change of the concomitant moderate degree or less of MR according to the type of aortic valve disease is not known well. The aim of this study was to analyze the post-operative changes of MR after performing AVR in those patients with severe AS (Group S) and those with severe AR (Group R). Material and Method: We retrospectively evaluated 43 patients with severe aortic disease and a moderate degree or less of mitral valve regurgitation, and these patients underwent isolated aortic valve replacement from January 1996 to June 2005. The patients were divided into two groups: the aortic valve stenosis group (n = 29) and the aortic valve regurgitation group (n = 14). The patients underwent transthoracic echocardiography preoperatively and at 7 days, $6{\sim}10$ months and more than 18 months (mean follow-up duration: 38 months) postoperatively. Result: The mean age was 60.9 years (Group S: 62 years, Group R: 52.5 years) and 60% (Group S=55%, Group R=71%) of the patients were male. The preoperative MR was mild in 29 (67.5%), mild to moderate in 11 (25.5%), and moderate in 3 (6.9%) patients. In the Group S patients, MR improved in 16 (55%) patients at the immediate postoperative days and in 17 (59%) patients at more than 18 months postoperatively. On the other hand, all the Group R patients exhibited earlier improvement. The decrease of LA size had a similar pattern to the MR change, but there were no significant differences in the change of the ejection fraction of the two groups. Conclusion: In the patients with severe aortic valve disease and concomitant low grade MR, the MR after AVR improved earlier and more effectively in the patients with AR than in those patients with AS.

배경: 심한 대동맥 판막 질환을 가진 환자에서 많은 경우에 승모판막 폐쇄부전을 동반한다. 이런 환자들에서 대동맥 판막 수술 후 남겨지는 승모판막 폐쇄부전의 변화는 수술 등의 치료 과정을 결정하는 데 중요하다. 그러나 대동맥 판막 형태에 따른 대동맥 판막 치환술 후 중등도 이하의 승모판막 폐쇄부전의 변화는 잘 알려져 있지 않다. 본 연구에서는 중등도 이하의 승모판막 폐쇄부전을 동반한 대동맥 판막 협착(Group S)과 폐쇄부전(Group R)을 갖는 두 환자군에서 대동맥 판막 치환술 후 승모판막 폐쇄부전의 변화를 추적 비교해 보았다. 대상 및 방법: 연구 대상은 본 병원에서 1996년 1월에서 2005년 5월까지 대동맥 판막 치환술을 받고 중등도 이하의 승모판막 폐쇄부전을 수술을 하지 않은 환자 43명을 대상으로 하였다. 대상 환자들은 대동맥 판막 협착군(n=29)과 대동맥판막 폐쇄부전군(n=14)으로 나뉘었다. 추적검사 방법은 수술 후 7일, 수술 후 $6{\sim}10$개월 그리고 18개월 이후에 시행한 경흉부 심초음파 결과로 하였으며 평균 추적기간은 38개월이었다. 결과: 평균나이는 60.9세(Group 5=62세, Group R=52.5세)였으며 60% (Group S=55%, Group R=71%)가 남자 환자였다. 수술 전 승모판막 폐쇄부전의 정도는 경도가 29 (67.5%)명이었고 경도와 중등도 사이가 11 (25.5%)명이었으며 중등도가 3 (6.9%)명이었다 Group S에서 승모판 폐쇄부전 정도가 수술 후 수 일 내에 16 (55%)명에서 만 호전을 보였고 수술 후 18개월 후에 시행된 검사에서는 17 (59%)에서 호전을 보였다. 반면에 Group R의 모든 환자에서 조기에 승모판막 폐쇄부전의 호전을 나타냈다. 좌심방 크기감소는 승모판막 폐쇄부전의 호전에 따라 감소하였으나 좌심실 구출률은 두 군에서 의미 있는 차이가 없었다. 결론: 심한 대동맥 판막 질환과 동반된 중등도 이하의 승모판막 폐쇄부전이 있는 환자에서 대동맥 판막치환술 후 승모판막 폐쇄부전의 호전은 대동맥 판막 협착증의 환자보다 대동맥 판막 폐쇄부전 환자에서 보다 조기에 잘 이루어진다.

Keywords

References

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