東海大学病院泌尿器科における尿中分離細菌について 第1報 : 1976-1978年の分離細菌とディスク感受性について

Abstract

The following results were obtained from the three-year (1976-1978) statistics of bacterial florae isolated from the urinary tract and of their drug sensitivity. During the past three years, 3534 strains were isolated and 2827 strains (80%) were gram-negative bacilli. The number of strains which had been isolated from outpatients were 1945 consisting of 37.5% E. coli, 10.9% Enterococci, 10.8% Proteus group, 7.7% Klebsiella pneumoniae, 7.3% Pseudomonas aeruginosa, 7.1 % Staphylococcus epidermidis and others. There were 1589 strains isolated from hospitalized patients consisting of 16.3% P. aeruginosa, 14.7% Enterococci, 12.0% E. coli, 11.9% Proteus group, 9.5% E. cloacae and others. The increasing tendency has been seen in Serratia marcescens and Proteus spp. in the strains isolated from the outpatients and in S. marcescens and S. epidermidis in those from the inpatients. The 9 main strains isolated from outpatients were more susceptible to the antimicrobial agents (except nalidixic acid) than those from inpatients. The effect of colistin and chloramphenicol, antibiotics not routinely used, against isolates from the outpatients showed little difference from that against those from the inpatients. The reason why the effect of nalidixic acid against isolates from the inpatients was superior to that against those from the outpatients is probably that it has been mainly used in the outpatient clinic.