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A Correlation between Pulmonary Involvement of Acute Febrile Illness with High Incidence during the Fall and C-reactive Protein

가을철 유행하는 급성열성질환의 폐침범과 CRP와의 연관관계

  • Kim, Go Woon (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Lee, Woo Jin (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Hong, Won Ki (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Lee, Sung Hoa (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Lee, Chang Youl (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Lee, Myung Goo (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Hyun, In Gyu (Lung Research Institute of Hallym University College of Medicine) ;
  • Jung, Ki Suck (Lung Research Institute of Hallym University College of Medicine)
  • 김고운 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 이우진 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 홍원기 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 이성화 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 이창률 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 이명구 (한림대학교 의과대학 춘천성심병원 호흡기-알레르기 내과) ;
  • 현인규 (한림대학교 의과대학 폐연구소) ;
  • 정기석 (한림대학교 의과대학 폐연구소)
  • Received : 2008.12.09
  • Accepted : 2009.01.23
  • Published : 2009.02.28

Abstract

Background: Tsutsugamushi, leptospirosis and hemorrhagic fever with renal syndrome (HFRS) are the prevalent diseases among the acute febrile illnesses in Korea. Pulmonary involvement in the patients with these diseases remains poorly recognized in endemic regions, and this is despite reports of recent outbreaks and epidemic episodes. Pulmonary involvement and a higher CRP level as clinical manifestations show a more severe form of infection. The aim of this study is to analyze the correlation of pulmonary involvement and the CRP level in patients with acute febrile illnesses. Methods: We retrospectively reviewed the clinical records of 105 patients who were diagnosed with tsutsugamushi, HFRS and leptospirosis from January 2002 to May 2008 in Chuncheon Sacred Heart Hospital. The radiographic images were retrospectively analyzed by two radiologists. We analyzed the pulmonary complications of the patients with these febrile diseases and we checked the CRP level at admission. Results: The study included 105 patients who were diagnosed with febrile diseases. Of these patients, 32 patients had hantaan, 10 patients had leptospirosis and 63 patients had tsutsugamushi disease. 42 (40%) patients had pulmonary complications, 20 patients had pulmonary edema, 20 patients had pleural effusion and 2 patients had interstitial pneumonitis. The patients with pulmonary involvement showed a more severe form of infection and a higher CRP level than that of those patients without pulmonary involvement (p=0.0073). Conclusion: Pulmonary involvement in patients with acute febrile diseases might be correlated with a higher CRP level. Identification of this factor on admission might provide useful selection criteria for the patients who need early intensive care.

연구배경: 쯔쯔가무시병, 렙토스피라병, 신증후출혈열은 우리나라에서 흔한 급성열성질환으로 최근 발병과 유행성의 보고가 있음에도 불구하고 열성질환에 있어서 폐침범에 대한 연구는 부족한 상태이다. 열성질환에 있어서 폐합병증이 있을 때 임상적으로 더 심한 경과를 보이고 CRP 수치도 더 높게 측정되는 경우가 있어 입원 시 측정한 CRP값이 조기에 적극적인 치료 대상에 대한 예측인자가 될 수 있는지 알아보고자 하였다. 방 법: 2002년 1월부터 2008년 5월까지 한림대학교 춘천성심병원에서 혈청학적 검사에서 양성이거나 임상적으로 진단을 받았던 환자를 대상으로 후향적 연구를 하였다. 결 과: 총 105명의 환자가 대상이 되었고 쯔쯔가무시병 63명(63%), 신증후출혈열 32명(30.5%), 렙토스피라병 10명(9.5%)이었고 폐침범은 42명(40%)에서 관찰되었으며 폐부종 20명(19%), 가슴막삼출 20명(19%), 간질폐렴 2명(2%)이었다. CRP는 평균 8.87${\pm}$7.29 mg/dl였고 20 mg/dl 이상의 높은 값을 보였던 환자도 8명 있었고 폐침범 중 간질폐렴 형태에서 가장 높은 평균값을 보였다(p=0.027). 폐합병증을 보였던 환자군에서 임상적으로 심한 경과를 보였으며 중환자실 입원치료와 인공호흡기 치료를 동반하고 있었고 더 높은 CRP값을 보였다(p=0.0073). 결 론: 급성열성질환에 있어서 폐합병증을 보인 군에서 더 높은 CPR 수치가 측정되었으며 입원 시 CRP측정을 통해 조기에 더 적극적인 치료가 필요한 환자군을 선택할 수 있고 폐침범에 의한 사망률과 치명률의 감소에도 도움이 될 것으로 추정된다.

Keywords

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