A retrospective study of 221 hospitalized patients with fever in the Department of General Practice at Jichi Medical University Hospital

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  • 自治医科大学附属病院総合診療部に入院した発熱患者の原因疾患の内訳
  • ジチ イカ ダイガク フゾク ビョウイン ソウゴウ シンリョウブ ニ ニュウイン シタ ハツネツ カンジャ ノ ゲンイン シッカン ノ ウチワケ

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Abstract

Abstract<br>Objective : To investigate the causes of fever of inpatients hospitalized in the Department of General Practice at Jichi Medical University Hospital.<br>Methods : We reviewed all medical records of the patients hospitalized in the Department of General Practice at this hospital between April 2003 and March 2004. Patients were selected as the “febrile group” by following criteria, 1) body temperature exceeded 37.5°C on admission, 2) fever and fever of unknown origin (FUO) were included in the clinical problems, and the causes of fever were described.<br>Results : A total of 464 patients were hospitalized and 221 patients (47.6%) were categorized as the “febrile group”. The most common cause of fever was infection (67.4%), followed by malignant disease (4.1%), collagen disease (3.2%), miscellaneous diseases (10.4%). 26 patients were classified as fever of unknown origin (FUO). Among FUO patients, collagen disease was the most common cause (34.6%), and undiagnosed cases was 26.9% that was similar to past reports. Although the rates of malignant disease and collagen disease were about sixteen percent in each generation from thirties to fifties as the cause of fever, only one patient met the criteria of classical FUO.<br>Conclusions : The most common cause of fever was infection. Systematic survey including hospitalization is needed early in case an outpatient doesn't cure fever unexpectedly. Noninfectious inflammatory diseases emerge as an important category of the causative disease of FUO.

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