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題 名 | 某醫學中心成人加護病房八年來院內菌血症之探討=Analysis of Nosocomial Bloodstream Infections in Intensive Care Units at a Medical Center in Taiwan |
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作 者 | 鄧碧珠; 張藏能; 黃建賢; 沈淑惠; 李淑華; | 書刊名 | 院內感染控制雜誌 |
卷 期 | 12:6 2002.12[民91.12] |
頁 次 | 頁325-336 |
分類號 | 419.38 |
關鍵詞 | 菌血症; 院內感染; 加護病房; 個案死亡率; Bacteremia; Nosocomial infections; Intensive care unints; Case fatality; |
語 文 | 中文(Chinese) |
中文摘要 | 加護病房病患一直是發生院內感染的高危險群,其中又以菌血症是常見的感染部位,故本研究之目的在瞭解某醫學中心成人加護病房八年來院內菌血症之發生率、菌種變遷、菌血症相關感染來源與個案死亡率之相關性。本研究採回溯性方法,以1993至2000年期間,成人加護病房所有菌血症患者為對象。結果顯示,八年來菌血症發生密度為5.42? (4.5-7.0?),經卡方趨勢分析各年度間發生菌血症感染比例具有顯著差異(P值:0.02)。感染菌種以革蘭氏陰性菌49.5%為最多,其次是革蘭氏陽性菌24.2%、黴菌9.8%、厭氧菌佔0.9%。院內菌血症前十名致病菌經卡方趨勢分析結果呈現:S. aureus、fungi、 Serratia spp.和Burkhoderia cepacia在各年度的分離率具統計學上顯著意義(P值<0.05)。 分析菌血症感染來源,其中有48%可找到感染來源,其個案死亡率為38.6%;而最常見的感染來源為下呼吸道系統(16.4%)、血管內導管裝置(8.2%)與泌尿道系統(5.3%),其個案死亡率以泌尿道系統(44.4%)最高。顯然,有放置侵入性導管的病患其菌血症感染率與個案死亡率較高。 因此,改善醫療導管的無菌放置技術與加強導管的照護品質,是未來臨床上院內菌血症防護之重要指標。(感控雜誌2002;12:325-36) |
英文摘要 | This retrospective study reviewed the medical records of all patients whon had nosocomial bacteremia in intensive care units of a medical center in Taipei from 1993 till 2000. There were 685 episodes of bacteremia that developed nosocomially in 590 patients. The average annual crude incidence rate was 3.4?, and the incidence density was 5.4?. A total of 816 strains of micro-organisms was isolated; 15.6% of the patients had multiple pathogens. 25~ patients died. There were 49.5% Gram-negative bacteria, 24.4% Gram- positives, 9.8% fungi, and 0.9% anaerobes. The most commonly isolated were: Staphylococcus aureus (16.1%)(87.8% of which were methicillin-resistant), Acinetobacter spp. (15.1%), fungi (10.3%), Enterobacter cloacae (6.6%), and coagulase-negative staphylococci (5.8%). Statistical differences (by chi-square test) were present among annual incidences of bacteremias caused by S. aureus, fungi, Serratia spp, and Burkholderia cepacia (P<0.05). The sources of the bacteremia were identified in 48%. The major sources of the infection were: lower respiratory (16.4%), intravenous catheters (8.2%), and urinary tract (5.3%). The highest mortality rate was seen in cases secondary to the urinary tract infection (44.4%). Acinetobacter spp. were the most frequently isolated organisms between 1993 till 1996; whereas Staphylococcus aureus was the most important since 1997. Catheters inserted into patients were inde- pendently predictive of the bloodstream infections. (Nooo~om Infect Control J 2002:12:325-36) |
本系統中英文摘要資訊取自各篇刊載內容。