[Gram-positive cocci isolated from urocultures of ambulatory and hospitalized patients with surgical risk].
OBJECTIVE
We propose a comparative study of sensitivity to antibiotics of Gram-positive germs isolated in urocultures from patients in ambulatory and two wards with surgical risk (urology and obstetrics-gynaecology), and also to establish the resistance phenotypes of these strains.


METHODS
124 strains of Gram-positive cocci were studied: 28 S. aureus strains, 24 strains of coagulase-negative staphylococcus (CNS), 23 Streptococcus aglactiae strains, 1 Streptococcus anginosus strain and 48 Enterococcus spp. strains. The isolated strains came from 4398 urocultures (1889--ambulatory, 1871--urology, 629--obstetrics-gynaecology). Testing of antibiotic sensitivity was performed through Kirby-Bauer disk-diffusion method, with automatic phenotyping (Osiris Evolution system).


RESULTS
In ambulatory, the wild phenotype was predominant in all isolated strains (33.33% S. aureus, 50% CNS, 100% Streptococcus aglactiae, 60% Enterococcus spp.). In the urology ward, the following multiresistant strains were isolated: 9 MRSA strains (47.36%), 1 MRSE strain (100%), 1 VRE strain (4.34%). In the obstetrics-gynaecology ward, 7 strains showed multiple antibiotic resistance: 4 MRSA strains (66.66%), 2 MRSE strains (50%), 1 VRE strain (6.66%).


CONCLUSIONS
Multiresistant strains were isolated in hospital environment, which can be explained by the improper use of antibiotics, the instrumental approach of the urinary tract, and the existence of risk factors in the patients admitted in the above-mentioned wards. Enforcement of efficient nosocomial infection control measures is advisable, as well as a policy for rational antibiotic use.
Universitatea de Medicină şi Farmacie "Victor Babeş" Timişoara.
Delia Berceanu
DB
Văduva
Delia
D
Muntean
Monica
M
Licker
Dana
D
Velimirovici
Matilda
M
Rădulescu
M Berceanu
MB
Văduva
Dorina
D
Dugăeşescu
Maria
M
Rada
Luminiţa
L
Bădiţoiu
Roxana
R
Moldovan
D052978:Disk Diffusion Antimicrobial Tests; D024901:Drug Resistance, Multiple, Bacterial / Q000187:drug effects; D016908:Gram-Positive Bacterial Infections / Q000188:drug therapy / Q000382:microbiology* / Q000652:urine*; D006095:Gram-Positive Cocci / Q000302:isolation & purification*; D006801:Humans; D007297:Inpatients / Q000706:statistics & numerical data; D009775:Obstetrics and Gynecology Department, Hospital / Q000706:statistics & numerical data; D010045:Outpatients / Q000706:statistics & numerical data; D016896:Treatment Outcome; D014552:Urinary Tract Infections / Q000188:drug therapy / Q000382:microbiology* / Q000652:urine*; D014573:Urology Department, Hospital / Q000706:statistics & numerical data