DOI QR코드

DOI QR Code

Mid-Term Results of Mitral Valve Repair Using a Partial Flexible Band and a Completely Rigid Ring in Patients with Degenerative Mitral Regurgitation

퇴행성 승모판막역류 환자에서 Partial Flexible Band와 Complete Rigid Ring을 이용한 승모판막 성형술의 중기 결과 비교

  • Kim, Kyung-Hwan (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Ahn, Hyuk (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Hwang, Ho-Young (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Choi, Jin-Ho (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital) ;
  • Kim, Ki-Bong (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
  • 김경환 (서울대학교병원 흉부외과) ;
  • 안혁 (서울대학교병원 흉부외과) ;
  • 황호영 (서울대학교병원 흉부외과) ;
  • 최진호 (서울대학교병원 흉부외과) ;
  • 김기봉 (서울대학교병원 흉부외과)
  • Received : 2010.01.14
  • Accepted : 2010.02.17
  • Published : 2010.10.05

Abstract

Background: We evaluated mid-term results of mitral annuloplasty using a flexible band and a completely rigid ring for mitral valve repair in patients with degenerative mitral regurgitation (MR). Material and Method: From January 2004 to September 2008, 71 patients (M:F=36:35, $55{\pm}13$ years) underwent mitral valve repair with mitral annuloplasty for degenerative MR. Ring annuloplasty was done using a Cosgrove-Edwards flexible band (Group I, n=43) or a Carpentier-Edwards classic ring (Group II, n=28). There were no differences in preoperative characteristics of the participants. Average duration of follow-up was 36 months (range: 2~69 mos). Result: There was no in-hospital mortality. Postoperative morbidity, which included atrial fibrillation (n=7) and low cardiac output syndrome (n=5) in groups I and II were similar. There was one late death in group II. The proportion exhibiting freedom from recurrent mitral regurgitation ($\geq$moderate) at 4 years in Groups I and II were, respectively, 94.5 and 91.8%, (p=0.695). Left ventricular ejection fraction decreased in the early postoperative period ($7{\pm}2$ days) and recovered by last follow-up ($25{\pm}16$ mos; p=0.002). The pattern was similar in groups I and II (p=0.905). Re-operation was performed in 3 patients (1 in Group I and 2 in Group II, p=0.316). Four-year event-free survival (free of adverse valve-related events) was 95.2% for Group I and 92.6% for Group II; this difference was not significant, p=0.646). Conclusion: The type of technique used in mitral annuloplasty to repair the mitral valve repair after degenerative MR did not affect mid-term clinical and functional results.

배경: 퇴행성 승모판막역류증으로 승모판막성형술을 받은 환자들 중에서 partial flexible band를 이용한 경우와 complete rigid ring을 이용한 경우의 중기 성적을 비교해 보고자 하였다. 대상 및 방법: 2004년 1월부터 2008년 9월 사이에 단독 승모판막역류증으로 승모판막수술을 받은 112명의 환자 중 퇴행성 질환으로 확진되고, 승모판막성형술 및 승모판막륜 링 삽입술을 시행 받은 71명의 환자(남:여=36:35, $55{\pm}13$세)를 대상으로 하였다. 환자들을 승모판막륜성형술에 partial flexible band를 이용한 I군(43명)과 Complete rigid ring을 이용한 II군(28명)으로 나누어 단기 및 중기 성적을 비교하였다. 두 군 간의 수술 전 특성에는 유의한 차이가 없었다. 추적관찰 기간의 중앙값은 36개월(2~69개월)이었다. 결과: 수술관련 사망은 없었으며, 심방세동(n=7), 저심박출 증후군(n=5)과 같은 수술 관련 합병증의 발생은 두 군 간 발생률의 차이가 없었고, II군에서 만기 사망이 1예 있었다. 4년 승모판막역류재발 자유 생존률은 I군과 II군에서 각각 94.5%와 91.8%였다(p=0.695). 좌심실 구출율은 수술 후 조기($7{\pm}2$일)에는 저하 되었고, 최종 추적관찰 시점($25{\pm}16$개월)에서 회복되었다(p=0.002). 이런 변화 추세는 양군에 차이가 없었다(p=0.905). 재수술은 3명의 환자(I군에서 1예, II군에서 2예, p=0.905)에서 시행되었다. 4년 판막 관련 사건 자유 생존률은 두 군 간에 차이가 없었다(I군 95.2% vs II군 92.6%, p=0.646). 결론: 승모판막륜 성형술에 사용되는 판막륜 링의 종류는 퇴행성 승모판막 역류증에 대한 승모판막 성형술의 중기 임상성적 및 기능결과에는 영향을 주지 않았다.

Keywords

References

  1. Gillinov AM, Cosgrove DM, Blackstone EH, et al. Durability of mitral valve repair for degenerative disease. J Thorac Cardiovasc Surg 1998;116:734-43. https://doi.org/10.1016/S0022-5223(98)00450-4
  2. Braunberger E, Deloche A, Berrebi A, et al. Very long-term results (more than 20 years) of valve repair with Carpentier's techniques in nonrheumatic mitral valve insufficiency. Circulation 2001;104:I8-11.
  3. David TE, Ivanov J, Armstrong S, Christie D, Rakowski H. A comparison of outcomes of mitral valve repair for degenerative disease with posterior, anterior, and bileaflet prolapse. J Thorac Cardiovasc Surg 2005;130:1242-9. https://doi.org/10.1016/j.jtcvs.2005.06.046
  4. Carpentier A. Reconstructive valvuloplasty. A new technique of mitral valvuloplasty. Presse Med 1969;77:251-3.
  5. Gillinov AM, Tantiwongkosri K, Blacstone EH, et al. Is prosthetic anuloplasty necessary for durable mitral valve repair? Ann Thorac Surg 2009;88:76-82. https://doi.org/10.1016/j.athoracsur.2009.03.089
  6. Park KY, Jeon YB, Park CH. Teflon felt strip mitral valve repair as an alternative to expensive commercial rings. Korean J Thorac Cardiovasc Surg 2008;41:216-22.
  7. Yamaura Y, Yoshikawa J, Yoshida K, Hozumi T, Akasaka T, Okada Y. Three-dimensional analysis of configuration and dynamics in patients with an annuloplasty ring by multiplane transesophageal echocardiography: comparison between flexible and rigid annuloplasty rings. J Heart Valve Dis 1995; 4:618-22.
  8. Akins CW, Miller C, Turina MI, et al. Guidelines for reporting mortality and morbidity after cardiac valve interventions. Ann Thorac Surg 2008;85:1490-5. https://doi.org/10.1016/j.athoracsur.2007.12.082
  9. Hansen DE, Cahill PD, DeCampli WM, et al. Valvularventricular interaction: importance of the mitral apparatus in canine left ventricular systolic performance. Circulation 1986;73:1310-20. https://doi.org/10.1161/01.CIR.73.6.1310
  10. Enriquez-Sarano M, Schaff HV, Orszulak TA, Tajik AJ, Bailey KR, Frye RL. Valve repair improves the outcome of surgery for mitral regurgitation: a multivariate analysis. Circulation 1995;91:1022-8. https://doi.org/10.1161/01.CIR.91.4.1022
  11. Borghetti V, Campana M, Scotti C, et al. Biological versus prosthetic ring in mitral-valve repair: enhancement of mitral annulus dynamics and left-ventricular function with pericardial annuloplasty at long-term. Eur J Cardiothorac Surg 2000;17:431-9. https://doi.org/10.1016/S1010-7940(00)00344-4
  12. Unger-Graeber B, Lee RT, Sutton MS, Plappert M, Collins JJ, Cohn LH. Doppler echocardiographic comparison of the Carpentier and Duran anuloplasty rings versus no ring after mitral valve repair for mitral regurgitation. Am J Cardiol 1991;67:517-9. https://doi.org/10.1016/0002-9149(91)90014-C
  13. David TE, Komeda M, Pollick C, Burns RJ. Mitral valve annuloplasty: the effect of the type on left ventricular function. Ann Thorac Surg 1989;47:524-7. https://doi.org/10.1016/0003-4975(89)90426-8
  14. Chee T, Haston R, Togo A, Raja SG. Is a flexible mitral annuloplasty ring superior to a semi-rigid or rigid ring in terms of improvement in symptoms and survival? Interact Cardiovasc Thorac Surg 2008;7:477-84. https://doi.org/10.1510/icvts.2007.174243
  15. Galloway AC, Colvin SB, Baumann FG, et al. Long-term results of mitral valve reconstruction with Carpentier techniques in 148 patients with mitral insufficiency. Circulation 1988;78(Suppl 1):97-105.
  16. Ormiston JA, Shah PM, Tei C, Wong M. Size and motion of the mitral valve annulus in man. A two-dimensional echocardiographic method and findings in normal subjects. Circulation 1981;64:113-20. https://doi.org/10.1161/01.CIR.64.1.113
  17. Gazoni LM, Fedoruk LM, Kern JA, et al. A simplified approach to degenerative disease: triangular resections of the mitral valve. Ann Thorac Surg 2007;83:1658-65. https://doi.org/10.1016/j.athoracsur.2007.01.028