[Survey bacterial isolates from blood samples during 1987-1993 in our department].
We analyzed the changes in frequency of bacterial isolates from the blood samples in our department from May 1987 to December 1993. 565 isolates from 4887 samples (11.6%) were detected. Among the detected microorganisms, the rate of gram-positivecocci (GPC) was much higher than the other kinds of the isolates each year. Especially, 80-90% of GPC were occupied by only 2 kinds of microorganisms, coagulase negative Staphylococci (CNS) and S. aureus. Among gram-negative-rods (GNR), constant increase of S. marcescens and transient increase of Enterobacter and P. aeruginosa were recognized. In 30 cases (5.3%), 2-3 kinds of microorganisms were isolated concomitantly, and in 55 cases (9.7%), the microorganisms, which was mainly caused by CNS, S. aureus and Candida, was isolated from both blood samples and the tip of the IVH catheter concomitantly. 42.5% of the bacterial positive cases in 1933 underwent 2 more kinds of the indwelling catheters and 48.3% were administrated antibiotics. Most of the cases had underlying diseases including mainly malignant tumor (leukemia, solid tumor), cerebrovascular diseases, and multiple injuries.
Takagi
T
T
Department of Clinical Laboratory, Saint Marianna University School of Medicine, Yokoyama City Seibu Hospital.
Akita
H
H
Kato
T
T
D016470:Bacteremia / Q000453:epidemiology*; D002175:Candida / Q000302:isolation & purification; D002405:Catheterization, Central Venous / Q000295:instrumentation; D004754:Enterobacter / Q000302:isolation & purification; D004866:Equipment Contamination; D006801:Humans; D007564:Japan / Q000453:epidemiology; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification; D012307:Risk Factors; D013210:Staphylococcus / Q000302:isolation & purification*; D013211:Staphylococcus aureus / Q000302:isolation & purification; D013212:Staphylococcus epidermidis / Q000302:isolation & purification