The Role of Intra-Aortic Balloon Pump in Coronary Artery Bypass Surgery

관상동맥 우회술에서의 대동맥내 풍선 펌프의 역할

  • 박성식 (서울대학교병원 흉부외과, 서울대학교 의과대학 흉부외과학교실) ;
  • 김기봉 (서울대학교병원 흉부외과, 서울대학교 의과대학 흉부외과학교실, 삼성의료원 삼성서울병원 흉부외과)
  • Published : 1997.03.01

Abstract

In the era of coronary artery bypass grafting, the intraaortic balloon pump (IABP) is more widely used and its indication has been ex anded. We perf'orbed retrospective clinical analysis on the patients who have received IABP pre andfor postoperatively during the course of CABG. From January 1981 to June 1995, total 322 patients have received CABG at the Seoul National University Hospital and among them 50 patients (15.5%) were supported by IABP during the course of the operation. The mean age at the time. of the operation was 57.2 years (39∼ 75 years) and the male to female ratio was 33 : 17. The preoperative diagnosis was unstable angina in 33 (66%), stable angina in 7 (14%) and postinfarct angina in 8 patients(16%). As for the indications of the IABP, there were 13 cases(26%) with left main disease, 13 (26%) with class IV angina, 12 (24%) with difficulty in CPB weaning, 6 (12%) with postinfarct angina and 3 (6%) with severe LV dysfunction. In the remaining 3 cases, one patient was operated on after PTCA failure in emergency basis, another was a patient with AMI, and the other was one who had postoperative low c rdiac output syndrome. All IABPS were introduced via femoral artery and among them 45 cases (90%) percutaneously. The mean postoperative assist time was 22.3 hours (0.5 ∼ 168 hours) and IABP could be removed within 48 hours in most of them (44150). The operative mortality was 6.1% (3 cases) and postoperative morbidity was only one with lower extremity ischemia. The more general application of the IABP during the course of the CABG ,especially in patients with high preoperative risk factors or difficulty in CPB weaning is a good measure of protecting and recovering myocardial function with minimal risk.

관상동맥 우회술에서 대동맥내 풍선 펌프 이용은 갈수록 증가하는 추세이며 그 적응증도 보다 광범위하게 확대되고 있다. 저자들은 관상동맥 우회술을 시행하였던 환자중 대동맥내 풍선 펌프를 적용하였던 환자들에 대 해 의무기록을 바탕으로 그 적응증, 사망율, 이환율, 수술후 심근 경색 빈도 및 연도별 적용 추세 등에 대하여 후향적 임상 분석을 하였다. 1981년 11월부터 1995년 6월까지 서울대학교병원에서 관상동맥 우회술을시행한 총 322명의 환자중 수술전, 후에 대동맥내 풍선 펌프를 적용하였던 경우는 50례 (15.5%)였다. 수술당시의 나이는 평균 57.2 세 (39∼75세)였으며 남 :여 비율은 33 : 17이 었다. 수술전 진단은 불안정 형 협심증 33례 (66%), 안정형 협 심증 7례 (14%), 심근경색후 협심증 8례 (16%)였으며, 다른 2례는 각각 경퍼적 관상동맥 성형술 실패와 급성 심근경색후 응급수술이 필요했던 경우였다. 대동맥내 풍선 펌프의 적응증은,수술전 적용은좌 주 관상동맥 질환이 13례 (26%), 내과적 치료에도 불구하고 중증 협심증을 보이는 class W angina가 13례 (26%), 심근 경색후 협심증이 6례 (12%)였다. 또한 수술전 좌심실 박출 계수가 3 % 미만이 었던 중증의 좌심실 기능부전 환자에게 적용한 경우가 3례(6%),경퍼적 관상동맥 성형술 실패후 응급 수술시행전 대동맥내 풍선 펌프를 시행한 경우가 1례, 급성 심근경색후 응급 수술까지 보조요법으로 시행한 경우가 1례 있었다. 수술후 적용은 심폐기 이탈이 어려웠던 12례(24%),수술후 저 심박출 증후군 환자에게 적용한 경우가 1례 있었다. 대동맥내 풍선 펌프는모두서혜부 대퇴동맥을 통하여 삽입하였으며, 그중 45례 (90%)는 경피적 삽입을 하였다. 수술후 대동맥내 풍선 펌프의 적용 기간은 평균 22.3시간(0.5∼ 168시 간)이었으며 대부분의 환자(44/50)에서 수술후 48시간 이내에 제거 가능하였다. 수술 사망율은 3례(6. 1%)였고 합병증은 혈전으로 인한 좌측하지 절단이 1례 있었다. 서울대학교병원 흉부외과에서 수술전 고 위험군 환자나심폐기 이탈이 어려웠던 환자들에 대하여 광 범 위한 대동맥내 풍선 펌프 적용으로 최소의 위험도로 좋은 결과를 얻을 수 있었기에 문헌 고찰과 함께 보고하는 바이다.

Keywords

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