Commonly Isolated Pathogens from Postoperative Wounds and Antibiotic Susceptibility Testing аt a Tertiary Care Hospital in Stip, North Macedonia
Journal
IOSR Journal Of Pharmacy (e)-ISSN: 2250-3013, (p)-ISSN: 2319-4219 Volume 10, Issue 2 Series. I (February 2020), PP. 46-52
Date Issued
2020-02
Author(s)
Milka Zdravkovska
Tijana Serafimovska
Jasmina Tonic Ribarska
Marija Dimitrova
Svetlana Zivkova
Alen Georgijev
Iskra Sadikarijo
Trajan Balkanov
Marija Darkovska-Serafimovska
Abstract
The increasing rates of hospital infections and bacterial resistance to commonly used antibiotics
have created huge problem in the management of different infections. The objective of this study was to identify isolated pathogens from swab samples of postoperative woundstaken at a tertiary care hospital in Stip and to determine microbial susceptibility to antibiotics. Therefore, a total of 139 wound swab samples from two different departments (surgery and orthopedics) at a tertiary care hospital were processed using standard microbiological techniques. The colonies grown were identified based on colony morphology, Gram stains, and biochemical tests for accurate microbial identification. Antimicrobial susceptibility testing was performed by Kirby–Bauer disc diffusion technique. Among total 139 wound swab samples processed, from a total of 2344 operated patients, 100 samples (4,3%) were culture positive. The most common isolated gram-positive bacteria were Staphylococcus aureus (27 samples), among which 44% contained MRSA and Enterococcus (9 samples) among which 50% were found to have multidrug resistance to penicillin, macrolides, cephalosporines, clindamycin, folate synthesis inhibitors and quinolones. The most common isolated gram-negative bacteria were Escherichia coli (17 samples) and Pseudomonas aeruginosa (13 samples) among which 50% were found to have multidrug resistance to beta-lactam antibiotic, chloramphenicol, folate synthesis inhibitors and quinolones. The highest percentage of isolated pathogens was found in the samples obtained from the orthopaedic
department. Gram-negative infections were predominant. Increased rate of MRSA resistance and multidrug resistance was noted.
have created huge problem in the management of different infections. The objective of this study was to identify isolated pathogens from swab samples of postoperative woundstaken at a tertiary care hospital in Stip and to determine microbial susceptibility to antibiotics. Therefore, a total of 139 wound swab samples from two different departments (surgery and orthopedics) at a tertiary care hospital were processed using standard microbiological techniques. The colonies grown were identified based on colony morphology, Gram stains, and biochemical tests for accurate microbial identification. Antimicrobial susceptibility testing was performed by Kirby–Bauer disc diffusion technique. Among total 139 wound swab samples processed, from a total of 2344 operated patients, 100 samples (4,3%) were culture positive. The most common isolated gram-positive bacteria were Staphylococcus aureus (27 samples), among which 44% contained MRSA and Enterococcus (9 samples) among which 50% were found to have multidrug resistance to penicillin, macrolides, cephalosporines, clindamycin, folate synthesis inhibitors and quinolones. The most common isolated gram-negative bacteria were Escherichia coli (17 samples) and Pseudomonas aeruginosa (13 samples) among which 50% were found to have multidrug resistance to beta-lactam antibiotic, chloramphenicol, folate synthesis inhibitors and quinolones. The highest percentage of isolated pathogens was found in the samples obtained from the orthopaedic
department. Gram-negative infections were predominant. Increased rate of MRSA resistance and multidrug resistance was noted.
Subjects