Mitral Valve Replacement with Chordal Preservation in Mitral Stenotic Disease

승모판막 협착 질환에서 건삭보존 치환술에 대한 연구

  • 김태호 (전북대학교 의과대학 흉부외과학 교실) ;
  • 김공수 (전북대학교 의과대학 흉부외과학 교실) ;
  • 구자홍 (전북대학교 의과대학 흉부외과학 교실)
  • Published : 1999.01.01

Abstract

Background: Mitral valve replacement with chordal preservation in patients with mitral regurgitation has been proved to be beneficial for left ventricular function and for reduction of postoperative complication. However, in patients with mitral stenosis, the effectiveness of the technique is controversial. It is not easy to insert prosthetic valve without left ventricular outflow tract obstruction and prosthetic valve leaflet motion hinderance. Material and Method : Five patients with mitral stenosis and seven patients with mitral stenoinsufficiency underwent mitral valve replacement with preservation of mitral subvalvular apparatus. Thickened and calcified leaflets are made thin by peeling off the thickened and calcified part. Commissurotomy was done and anterior leaflet was incised 2 mm apart from the annulus and then divided into two segments. Anterolateral and posteromedial segments including strut chordae, were reattached to mitral commissural area, respectively. Result: There was no evidence of prosthetic valve dysfunction, paravalvular leakage, left ventricular outflow tract obstruction, complications and operative or late deaths. Conclusion: We conclude that mitral vlave replacement with chordal preservation was safe and effective technique for the patients with mitral stenotic disease.

배경: 건삭보존 승모판 치환술이 승모판 폐쇄부전증에 있어서는 좌심실 기능의 개선 및 술후 합병증을 줄일 수 있다고 알려져 있으나 승모판 협착증에 있어서는 좌심실 유출로의 폐쇄나 기계판엽의 운동장애 없이 적당한 크기의 기계판막을 삽입할 수 없다는 점등으로 아직 논란의 대상이 되고 있다. 대상 및 방법: 본원에서는 5명의 승모판 협착증환자와 7명의 승모판 폐쇄부전증 환자를 대상으로, 융합된 교련의 절개, 두꺼워진 판첨을 얇게 박리하고, 전판첨을 전판륜으로부터 2 mm 정도에 절개를 가하고 전판첨 중앙부를 절제하여 판엽을 두 개의 분절로 분리하여 교련부에 재 부착함으로써 건삭 및 판첨을 판륜에 위치이동 하면서 승모판막 치환술을 시행하여 건삭 및 판륜의 연속성을 유지하였다. 결과: 술후 기계판엽의 운동장애나 판막주위누출, 좌심실 유출로의 폐쇄 등 합병증 및 수술 사망환자는 없었다. 결론: 결론적으로 건삭보존 승모판 치환술이 승모판 협착증에 있어서도 안전하고 효과적인 수술방법이라 할 수 있다

Keywords

References

  1. Circulation v.74 The importance of the mitral apparatus in left ventricular function after correction of mitral regurgitation David TE;Uden DE;Strauss HD
  2. J Heart Valve Dis v.2 The effect of chordal preservation on late outcome after mitral valve replacementr: A randomized study Horstkotte D;Schulte HD;Birks W;Strauer BE
  3. Circulation v.90 Late hemodynamic effects of the preserved papillary muscles during mitral valve replacement Komeda M;Tirone ED;Rao V;Sun Z;Weisel RD;Burns Rj
  4. Am J Physiol v.58 The contour of the ventricular volume curves under different conditions Wiggers CJ;Katz LN
  5. Am J Physiol v.184 Initial phase for ventricular systole: asynchronous contraction Rushmer RF
  6. J Thorac Cardiovasc Surg Mitral valve replacement with preservation of papillary muscles and chordae tendineae Lillwhei CW;Morris MD;Levy Mj;Bonnabeau RC
  7. J Thorac Cardiovasc Surg v.31 Mitral valve replacement with preservation of papillary muscles and chordae tedinae Hetzer R;Bougioukas G;Franz M;Borst HG
  8. Circulation v.68 no.SUP.2 The impotrance of the mitral apparatus in left ventricular function after correction of mitral regurgitation David TE;Uden DE;Strauss HD
  9. J Thorac Cardiovasc Surg v.93 Relative contributions of the anterior and posterior mitral chordae tendineae of canine global left ventricular systolic function Hansen DE;Cahill PD;Derby CC;Miller DC
  10. An Thorac Surg v.45 Mitral valve replacement with preservatio of chordae tendineae and papillary muscles Miki S;Kusuhara K;Ueda Y;Komeda M;Ohkita T
  11. J Card Surg v.5 Preservation of all chordae tendineae and papillary muscle during mitral valve replacement with a tilting disc valve Feikes HL;Daugharthy JB;Perry JE;Bell JH;Hieb RE;Johnson CH
  12. Ann Thorac Surg v.57 Preservation of anterior leaflet chordae tendineae during mitral valve replacement Rose EA;Mehmet CO
  13. J Thorac Cardiovasc Surgeon v.42 Mitral valve replacement with preservation of the subvalvular structures where possible: an echocardiographic and clinical comparision with cases where preservation was not possible Straub U;Feindt P;Huwei H;Kalweit C;Volkmer I;Cams E
  14. J Heart Valve Dis v.4 no.SUP.Ⅱ Perservation of papillary muscles and chordae during mitral valve replacement: Possibilities and limitations Hetzer R;Drews T;Siniawski H(et al)
  15. Ann Thorac Surg v.49 Effect of standerd mitral vlave replacement on left ventricular function Harploe DH;Rankin SJ;Wolfe WG
  16. J Thorac Cardiovasc Surg v.108 Mitral valve replacemrnt with maintenace of mitral annulopapillary muscle continuity in patient with mitral stenosis Okita Y;Miki S;Ueda Y;Tahata T;Sakai T;Matsuyama K
  17. J Heart valve dis v.4 Comparative assessment of chordal preservation versus chordal resection in mitral valve replacement for mitral stenosis Alhan C;Kayacioglu I;Tayyareci G;Demirtas M;Idiz M
  18. 대흉외지 v.23 승모판막 질환에서 승모판 대치술시 승모판 후엽 및 건삭보존의 효과 조강래;김종원