Efficacy of Low-dose Hydrocortisone Infusion for Patients with Severe Community-acquired Pneumonia Who Invasive Mechanical Ventilation

기계 환기가 요구된 중증 지역사회 획득 폐렴에서 저용량 하이드로코르티손 주입의 효과

  • Kim, Ho Cheol (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Lee, Seung Jun (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Ham, Hyoun Seok (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Cho, Yu Ji (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Jeong, Yi Yeong (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Lee, Jong Deok (Department of Internal Medicine, College of Medicine, Gyeongsang National University) ;
  • Hwang, Young Sil (Department of Internal Medicine, College of Medicine, Gyeongsang National University)
  • 김호철 (경상대학교 의과대학 내과학교실) ;
  • 이승준 (경상대학교 의과대학 내과학교실) ;
  • 함현석 (경상대학교 의과대학 내과학교실) ;
  • 조유지 (경상대학교 의과대학 내과학교실) ;
  • 정이영 (경상대학교 의과대학 내과학교실) ;
  • 이종덕 (경상대학교 의과대학 내과학교실) ;
  • 황영실 (경상대학교 의과대학 내과학교실)
  • Received : 2006.01.01
  • Accepted : 2006.04.21
  • Published : 2006.04.30

Abstract

Background : Severe community-acquired pneumonia (CAP) can develop into respiratory failure that requires mechanical ventilation (MV), which is associated with a higher rate of mortality. It was recently reported that a hydrocortisone infusion in severe CAP patients was associated with a significant reduction in the length of the hospital stay and mortality. This study evaluated efficacy of a hydrocortisone infusion for patients with severe CAP requiring MV. Methods : From February 2005 to July 2005, 13 patients (M : F = 10 : 3, mean age: $68.6{\pm}14.1years$), who were diagnosed with severe CAP and required MV, were enrolled in this study. Hydrocortisone was administered as an intravenous 200mg loading bolus, which was followed by an infusion at a rate of 10mg/hour for 7 days. The control group was comprised of patients with severe CAP requiring MV but in whom corticosteroid was not used before study period. The clinical and physiologic parameters on or by day 8 and the outcome in the hydrocortisone infusion group were compared with those in the control group. Results : 1) There was no significant difference in age, gender ratio, SAPS II, SOFA score, temperature, leukocyte count, PaO2/FiO2 (P/F) ratio, the number of patients with P/F ratio < 200, chest radiograph score, lung injury score and catecholamine-dependent septic shock between the hydrocortisone infusion group and control group at day 1. 2) At day 8, the proportion of patients with an improvement in the P/F ratio ${\geq}100$ and the chest radiograph score was significantly higher in the hydrocortisone infusion group than in the control group (61.5% vs. 15.4%, 76.9% vs. 23.1%, p< 0.05). However, there was no significant difference in the other clinical and physiologic parameters. 3). There was no significant difference in the duration of the MV, ICU stay, hospital stay and 10th and 30th day mortality between the two groups. Conclusion : Hydrocortisone infusion for patients with severe CAP requiring invasive mechanical ventilation may be effective in improving the level of oxygenation and the chest radiograph score.

배경: 중증 지역사회 획득 폐렴은 항생제의 발달과 보조요법의 발전에도 불구하고 사망률이 높은 질환으로 호흡부전으로 진행되어 기계환기가 필요한 경우 사망률은 더욱 증가하게 된다. 최근 중증 지역사회 획득 폐렴에서 저용량 하이드로코르티손 주입이 사망률을 감소시킨다고 보고되었다. 본 연구는 기계환기가 요구된 중증 지역사회 획득 폐렴 환자에서 하이드로코르티손 정주의 효과를 알아보기 위하여 시행하였다. 방법: 2005년 2월부터 7월까지 중증 지역사회 획득 폐렴으로 기계환기를 유지한 13명의 환자(남:여=10:3, 평균 연령: $68.6{\pm}14.1$)를 대상으로 하이드로코르티손을 240mg을 부하로 정주하고 시간당 10mg을 지속적으로 7일간 주입하였다. 대조군은 연구 기간 이전 중증 지역사회 획득 폐렴으로 기계환기를 유지하고 스테로이드 치료를 하지 않았던 13명의 환자를 대상으로 하였다. 하이드로코르티손 주입 전과 주입 8일째 두 군 간의 임상적, 생리적 지표의 차이와 최종 결과를 비교하였다. 결과: 1) 하이드로코르티손 주입 전 주입군과 대조군의 나이, 성별, 내원 당시의 SAPS II, SOFA 점수, 체온, 백혈구 수, PaO2/FiO2(P/F) 비, P/F 200이하인 환자수, 흉부방사선 사진 점수, 폐손상 점수, 카테콜라민 의존성 패혈성 쇽의 빈도 등은 유의한 차이가 없었다. 2) 하이드로코르티손 주입 8일 후 대조군에 비해 주입군이 P/F비가 100이상 호전된 환자의 비율과 흉부 방사선 점수가 호전된 환자의 비율이 유의하게 높았다(61.5% vs. 15.4% p=0.016, 76.9% vs. 23.1% p<0.05). 이외 다른 임상적 및 생리적 지표들은 주입군과 대조군 사이에 유의한 차이는 없었다. 3) 두 군 간에 기계환기 유지기간, 중환자실 재원기간, 병원내 재원기간, 재원 10일째와 30일째의 사망률은 유의한 차이가 없었다. 결론: 기계환기가 요구되는 중증 지역사회 획득 폐렴에서 하이드로코르티손 정주는 산소화와 흉부 방사선 점수의 빠른 호전을 보이지만 최종 치료 성적에 대해서는 많은 환자를 대상으로 한 전향적 무작위 대조 연구가 필요할 것으로 사료된다.

Keywords

References

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