Journal of Chest Surgery

The Korean Society for Thoracic and Cardiovascular Surgery (대한심장혈관흉부외과학회)
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The Effect of Preoperative Clopidogrel on the Postoperative Bleeding after OPCAB

OPCAB 시행 전 Clopidogrel 사용이 술 후 출혈경향에 미치는 임상적 고찰

  • Park, Kwon-Jae (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital) ;
  • Woo, Jong-Soo (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital) ;
  • Bang, Jung-Hee (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital) ;
  • Jeong, Sang-Seok (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital)
  • 박권재 (동아대학교병원 흉부외과) ;
  • 우종수 (동아대학교병원 흉부외과) ;
  • 방정희 (동아대학교병원 흉부외과) ;
  • 정상석 (동아대학교병원 흉부외과)
  • Published : 2009.06.05
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Abstract

Background: Clopidogrel is widely used just before coronary artery bypass surgery, yet its pharmacological effect can cause postoperative bleeding-related complications. The purpose of this study was to find the effect of preoperative clopidogrel exposure on the blood transfusion requirement and on the rate of reexploration for bleeding control and the rate of readmission caused by bleeding in patients who undergo off-pump coronary artery bypass surgery (OPCAB). Material and Method: This study included 103 patients who had been on clopidogrel preoperatively and they underwent OPCAB by one surgeon from January, 2005 to November, 2007. We divided the patient into two group. Group 1 consisted of 45 patients who stopped cloidogrel 5 days before surgery and group 2 consisted of 58 patients who were taking clopidogrel within 5 days before surgery. Two groups were compared in terms of the bleeding related reoperation rate and the readmission rate, the amount of postoperative bleeding and the required amount of transfusion. Result: There were no significant differences between the two groups concerning the demographic, echocardiographic and hematologic features. There were no significant differences in the postoperative bleeding amount, but the amount of required transfusion was greater in group 2 (p=0.018). While group 1 showed a 0% reoperation rate for hemostasis and 0% readmission rate as related to postoperative bleeding, group 2 showed a 6.9% reoperation and a 5.2% readmission rate, but three were no statistically significant differences between the two groups. Conclusion: Continuous use of clopidogrel did not cause postoperative major bleeding, but can increase the amount of bleeding and the amount of required transfusion postoperatively. We that discontinuation of clopidogrel for a while before elective OPCAB can help the patient's postoperative recovery.

배경: 광범위한 clopidogrel의 사용으로 인해 관상동맥우회로술 전 많은 경우에서 clopidogrel 복용 환자들을 경험하게 된다. 그러나 clopidogrel은 그 고유한 약리 작용으로 인하여 술 후 출혈과 관련한 합병증을 일으킬 수 있다. 저자들은 술 전 clopidogre니 사용이 무심폐기하 관상동맥우회로술(off-pump coronary bypass grafting, OPCAB)후의 수혈 요구량, 지혈을 위한 재수술율 및 출혈과 관련한 재입원율 등에 미치는 영향을 알아보고자 하였다. 대상 및 방법: 이 연구는 2005년 1월부터 2007년 11월까지 단일 수술자에 의해 시행된 무심폐기하 관상동맥우회로술을 받은 환자 중, 수술 전 clopidogrel을 복용하고 있던 103명의 환자를 대상으로 하였다. 이 중 clopidogrel을 수술 5일 전에 복용을 중단한 군을 그룹 1 (n=45)으로 하고, 수술 5일 이내에도 계속 복용한 군을 그룹 2 (n=58)로 나누어 출혈과 관련한 재수술율 및 재입원율, 혈액 투여량, 술 후 출혈양 등을 비교 검토하였다. 결과: 두 군 간의 인구학적 특성, 심초음파, 혈액학적인 특성은 비슷하였다. 술 후 출혈양은 통계적으로 유의하게 차이가 나지는 않았지만, 술 후 수혈양은 그룹 2에서 더 많았다(p=0.018). 지혈을 목적으로 한 재수술율과 출혈과 연관된 재입원율은 그룹 1에서는 각각 0%, 0%였고, 그룹 2에서는 6.9%, 5.2%였다. 그러나 두군 간의 통계적인 차이는 없었다. 결론: 무심폐기하 관상동맥우회로술 시행 전 clopidogrel의 계속적인 사용은 술 후 주요한 출혈을 일으키지는 않지만 어느 정도는 출혈에 영향을 주고, 술 후 수혈양은 증가시켰다. 응급인 경우가 아니라면 술 전 clopidogrel을 일정 기간 끊는 것이 술 후 회복에 좋으리라 생각된다.

Keywords

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