Journal of Chest Surgery

The Korean Society for Thoracic and Cardiovascular Surgery (대한심장혈관흉부외과학회)
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Early Hemodynamic Changes and Short-term Outcomes of Mitral Valvuloplasty versus Replacement with Chordal Preservation for Patients with Mitral Regurgitation

승모판막폐쇄부전 환자에서 판막성형술과 판막대치술이 수술 후 혈역학과 단기 예후에 미치는 영향 비교

  • Choi, Yong-Seon (Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine) ;
  • Kwak, Young-Lan (Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine) ;
  • Chang, Byung-Chul (Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine) ;
  • Kim, Ji-Ho (Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine) ;
  • Hong, Yong-Woo (Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine) ;
  • Bang, Sou-Ouk (Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine)
  • 최용선 (연세대학교 의과대학 마취통증의학교실) ;
  • 곽영란 (연세대학교 의과대학 마취통증의학교실) ;
  • 장병철 (연세대학교 의과대학 흉부외과학교실) ;
  • 김지호 (연세대학교 의과대학 마취통증의학교실) ;
  • 홍용우 (연세대학교 의과대학 마취통증의학교실) ;
  • 방서욱 (연세대학교 의과대학 마취통증의학교실)
  • Published : 2007.10.05
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Abstract

Background: Preserving the subvalvular apparatus after mitral valve replacement (MVR) results in better ventricular function and a better outcome. In conjunction, mitral valve repair (MVr) is associated with a better outcome, yet little is known about the hemodynamics and outcomes between patients undergoing MVr and MVR with chordal preservation. We prospectively evaluated the hemodynamic changes and outcomes of patients undergoing MVr and MVR with chordal preservation. Material and Method: Fifty-four patients with mitral regurgitation (MR) who under-went MVR with chordal preservation (n=21) or MVr (n=33) were studied. The patients' characteristics, the intra-and postoperative hemodynamics and the use of cardiac medications, the postoperative outcome and the complications were recorded during the hospital stay. All the patients were followed up for at least 6 months post-operatively for determining their morbidity and mortality. Result: The patients' characteristics were similar between the groups, except for the presence of atrial fibrillation and congestive heart failure which was more frequent in the MVR group. Also, the preoperative left ventricular ejection fraction was lower in the MVR group than in the MVr group ($64{\pm}9%$ versus $69{\pm}5%$, respectively, p=0.043). There were no significant differences of the hemodynamics between the groups. The use of inotropic drugs and pacemakers during the 12hrs postoperatively was more common in the MVR group than in the MVr group (48% versus 24%, p=0.025 and 52% versus 24%, p=0.035, respectively). The other postoperative outcomes were similar in both groups for at least the 6 months follow-up period. Conclusion: MVR with chordal preservation was comparable with regard to the hemodynamics and clinical outcomes, supporting the beneficial effect of preserving the subvalvular apparatus after MVR.

배경: 승모판막하부 구조물의 보존은 판막대치술에서 심실 기능을 보존하고 임상경과를 향상시킨다. 판막성형술에서도 구조물의 보존으로 인해 예후가 좋다고 알려져 있지만 지금까지 판막성형술과 보존적 판막대치술 간에 수술 직후 심기능을 비교한 연구는 많지 않다. 이에 본 연구에서는 상기 두 술식에 따른 혈역학적 차이와 임상경과를 전향적으로 비교 연구하였다. 대상 및 방법: 승모판막폐쇄부전을 진단받은 54명의 환자 중 21명에서 보존적 판막대치술을, 33명에서 판막성형술을 시행하였다. 수술 중과 후에 환자의 혈역학, 심혈관계 약물의 사용, 임상경과 및 합병증을 관찰하였다. 모든 환자에서 최소 6개월 이상 사망률과 이환율을 추적 관찰하였다. 결과: 두 군 간 환자군의 특징은 비슷하였다. 다만 심방세동과 심부전이 판막대치술군에서 많았고 술 전 좌심실박출계수가 판막대치술군에서 $64{\pm}9%$로 판막성형술군의 $69{\pm}5%$에 비해 낮았다(p=0.043). 두 군 간 수술 중과 중환자실에서의 혈역학적 차이는 없었다. 중환실에서 심근수축제 사용 빈도는 판막대치술군에서 48%로 판막성형술군의 24%에 비해 유의하게 많았다(p=0.025). 또한 중환실에서 심장박동조율기 사용은 판막대치술군에서 52%로 판막성형술군의 24%에 비해 유의하게 많았다(p=0.035). 6개월 이상의 추적관찰 중 임상경과는 비슷하였다. 결론: 보존적 판막대치술은 술 후 혈역학과 단기적 임상경과 추적관찰 소견상 판막성형술과 필적한 결과를 보였다. 이는 수술 직후에 보존적 판막대치술이 판막성형술과 비슷한 유리한 영향을 미치기 때문으로 생각한다.

Keywords

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