Surgical Outcome of Tetralogy of Fallot in Adolt -Implication of Preoperative Cyanosis-

수술 전 청색증 정도에 따른 성인 활로씨 4징증의 임상 양상

  • Kim Sang-hwa (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Park Soon-Ik (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Park Jung-Jun (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Song Hyun (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Lee Jae-Won (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Seo Dong-Man (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Song Meong-Gun (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan) ;
  • Song Jong-Min (Department of Internal Medicine, College of Medicine, University of Ulsan) ;
  • Kang Duck-Hyun (Department of Internal Medicine, College of Medicine, University of Ulsan) ;
  • Song Jae-Kwan (Department of Internal Medicine, College of Medicine, University of Ulsan) ;
  • Jang Wan-Sook (Department of Pediatrics, College of Medicine, University of Ulsan) ;
  • Kim Young-Hwue (Department of Pediatrics, College of Medicine, University of Ulsan) ;
  • Yun Tae-Jin (Department of Thoracic and Cardiovascular Surgery, College of Medicine, University of Ulsan)
  • 김상화 (울산대학교 의과대학 흉부외과학교실) ;
  • 박순익 (울산대학교 의과대학 흉부외과학교실) ;
  • 박정준 (울산대학교 의과대학 흉부외과학교실) ;
  • 송현 (울산대학교 의과대학 흉부외과학교실) ;
  • 이재원 (울산대학교 의과대학 흉부외과학교실) ;
  • 서동만 (울산대학교 의과대학 흉부외과학교실) ;
  • 송명근 (울산대학교 의과대학 흉부외과학교실) ;
  • 송종민 (울산대학교 의과대학 내과학교실) ;
  • 강덕현 (울산대학교 의과대학 내과학교실) ;
  • 송재관 (울산대학교 의과대학 내과학교실) ;
  • 장완숙 (울산대학교 의과대학 소아과학교실) ;
  • 김영휘 (울산대학교 의과대학 소아과학교실) ;
  • 윤태진 (울산대학교 의과대학 흉부외과학교실)
  • Published : 2005.04.01

Abstract

We analysed differences in operative methods and postoperative outcome according to the severity of preoperative cyanosis in adult ToF (Tetralogy of Fallot) patients. Material and Method: From August 1989 to June 2001, thirty three adult patients, 18 females and 15 males, underwent total correction for ToF. Their age ranged from 15 years to 54 years (median: 34). Patients were divided into 2 groups by preoperative $SaO_2$ (arterial oxygen saturation): group I$(n=cyanotic,\;SaO_2\;\geq94\%)$ and group II $(acyanotic,\; SaO_2\geq95%)$. Preoperative median hemoglobin level was higher in group I compared to group II (17.5 g/dl vs 15 g/dl). Postoperative follow-up duration ranged from 1 to 94 months (670 patient-month, median: 14 months), and 63 two-dimensional echocardiographic examinations were done during this period. Result: There were no early or late mortality. With regard to RVOT (right ventricular outflow tract) reconstruction, trans-annular patch and RV-PA extracardiac conduit were used in 7 and 3 patients respectively, and all of them belonged to group I. In group I, cardiopulmonary bypass time, aortic cross-clamping time, ICU day, hospital day were significantly longer than in group II, and postoperative inotropic support was significantly greater than in group II. There was no ventricular arrhythmia in both groups, and one patient in group I suffered from atrial arrhythmia, which was resolved spontaneously after tricuspid and pulmonary valve replacement. During follow-up periods, functional class, residual RVOT stenosis and pulmonary regurgitation, tricuspid regurgitation, occurrence of ventricular and atrial arrhythmias were comparable between two groups. Conclusion: In adult ToF patients with severe preoperative cyanosis, more aggressive RVOT reconstruction and careful postoperative care are mandatory. However intermediate-term outcome of this group of patients is comparable to the patients with minimal or no preoperative cyanosis.

활로씨 4징증의 전교정술이 성인 연령에서 이루어지는 경우 술 전 상태에 따른 수술 방법 및 술 후 경과의 차이를 비교 분석하였다. 대상 및 방법: 1989년 8월부터 2001년 6월까지 총 33명의 성인 환자가 활로씨 4징증에 대한 전교정술을 받았다. 환자의 성비는 18:15로 여자가 많았고 연령은 $15\~54$세(중간값 34세)였다. 수술 전 심도자 시 대동맥 산소포화도에 따라 청색증형(1군: 산소포화도 $94\%$ 이하, 16예)및 비청색증형(2군: 산소 포화도 $95\%$ 이상, 17예)으로 나누었고, 각각의 술 전 혈색소치의 중간 값은 17.5g/dL 및 15g/dL로 1군에서 유의하게 높았다. 수술 후 외래 관찰 기간은 1개월에서 94개월(670 patient-month, 중간 값 14개월)이었고, 이 기간 중 총 63예의 심초음파가 시행되었다 걸과: 양군에서 조기 및 만기 사망은 없었다. 수술 시 경판륜 포편 및 우심실-페동맥 간 도관이 필요했던 경우는 각각 7예$(21\%)$, 3예($9\%$)였으며, 이들 환자들은 모두 1군에 해당하였다. 수술 시 체외순환시간, 대동맥 차단시간, 중환자실 체류기간, 재원일수 등은 모두 1군에서 유의하게 높았고, 수술 후 강심제의 투여량도 1군에서 유의하게 많았다. 1군의 한 환자에서 심방성 부정맥이 관찰되었으나 삼첨판막 및 폐동맥 판막 치환술 후 소실되었으며, 심실성 부정맥은 양 군 모두에서 관찰되지 않았다. 외래 관찰 기간 중 운동 시 호흡곤란, 초음파 상 잔존 우심실 유출로 협착 및 페동맥판 폐쇄부전, 삼첨판막 폐쇄부전 등은 양 군 간에 유의한 차이가 얼었다. 결론: 성인 활로씨 4징증은 술 전 청색증이 심한 경우 수술 시보다 적극적인 우심실 유출로 재건 방법을 요하고, 술 후 관리도 비청색증형에 비해 주의를 요한다. 하지만 외래 추적 시 증상 및 심초음파 소견에 의한 중기 성적은 수술 전 청색증의 정도와 무관하게 양 군 모두 우수하다.

Keywords

References

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