호중구 감소성 발열을 보인 고형암 환자의 임상양상 및 그람양성균 균혈증의 위험인자
Clinical Manifestations of Febrile Neutropenic Patients with Solid Tumor and Risk Factors for Gram Positive Bacteremia
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목 적 : 항암요법을 시행받고 호중구 감소성 발열이 발생한 고형암환자에서 임상양상을 분석하고 그람양성균 균혈증의 위험인자를 알아보고자 하였다. 재료 및 방법 : 2002년 1월부터 2004년 12월까지 연세대학교 의과대학 세브란스 병원 종양내과에서 고형암으로 진단받고 항암요법을 시행받은 18세 이상의 암환자에서 호중구 감소성 발열이 있었던 288예를 대상으로 하였다. 결 과 :항암요법을 시행받은 고형암 환자 중 288예에서 호중구 감소성 발열이 발생하였다. 이중 원인을 찾을 수 있었던 경우는 130예로 전체 45.1% 이었으며 미생물학적 확인감염(microbiologically documented infection, MDI)은 53예(18.4%) 이었다. 균혈증이 동반된 호중구 감소성 발열의 원인균 분포를 보면 총 53예에서 그람양성균이 27예 분리되어 50.9%를 차지하였고 그람음성균이 25예(47.2 %), 진균 1예(1.9%) 순이었다. 그람양성균 중에서 methicillin 내성 포도상구균의 비율은 35% 이었다. 호중구 감소성 발열 환자에서 그람양성균 균혈증의 독립적인 위험인자를 분석한 결과 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높았다. 결 론 : 호중구 감소성 발열이 발생한 고형암 환자에서 그람양성균 균혈증이 가장 높은 빈도를 보였으며 특히 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높음을 알 수 있었다. 따라서 호중구 감소성 발열이 발생한 고형암 환자에서 발열 당시에 위와 같은 위험인자가 있을 경우 glycopeptide의 조기 사용을 고려해야 할 것으로 사료되며 앞으로 더 많은 환자를 대상으로 하는 전향적 연구가 진행되어야 할 것으로 생각된다.
Abstract
Backgrounds : Recently, there has been a rise of prevalence of gram positive infection among cancer patients with febrile neutropenia. The proportion of antibiotic-resistant gram positive infection has been growing lately, especially in Korea, where the rate of MRSA infection was over 70%. It brings to careful consideration of early glycopeptide treatment in febrile neutropenic patients if gram positive infection is suspected. Also until now, most studies concerning febrile neutropenic patients were mainly related to hematologic malignancy rather than solid tumor. Materials and Methods : We evaluated clinical manifestations and risk factors for gram positive bacteremia in a cohort of 288 solid tumor patients who were more than 18 years old and had neutropenic fever after chemotherapy from January 2002 to December 2004 at the Department of Oncology, Yonsei Cancer Center, Seoul. Results : We identified the cause of fever in 130 (45.1%) cases, of which 53 (18.4%) cases were blood stream infection. Gram positive organism was isolated in 27 cases which comprises 50.9% of blood stream infections, followed by gram negative organism (47.2%) and fungus (1.9%). A logistic regression analysis revealed that gram positive bacteremia was associated independently with central venous catheter (CVC) infection, oropharyngeal mucositis, skin and soft tissue infection in febrile neutropenic patients with solid tumor. Conclusions : Gram positive bacteremia was common among febrile neutropenic patients in solid tumor and was associated with CVC infection, oropharyngeal mucositis, skin and soft tissue infection. The early use of glycopeptide must be taken into account in such conditions.
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