scholarly journals Bacteriology and Antibiotic Susceptibility Pattern of Peitonsillar Abscess

2010 ◽  
Vol 49 (178) ◽  
Author(s):  
A Acharya ◽  
R Gurung ◽  
B Khanal ◽  
A Ghimire
Keyword(s):  
Staphylococcus Aureus ◽  
Streptococcus Pyogenes ◽  
Clinical Laboratory ◽  
Positive Culture ◽  
Peritonsillar Abscess ◽  
Susceptibility Pattern ◽  
Acute Tonsillitis ◽  
Antibiotic Susceptibility Pattern ◽  
The Common ◽  
And Staphylococcus Aureus

INTRODUCTION: Peritonsillar abscess is a common complication of acute tonsillitis. Its management consists of aspiration or surgical drainage followed by appropriate antibiotics. Appropriate antibiotic treatment depends on the common organisms associated with infection and their antibioticsensitivity pattern in local scenario. METHODS: Pus samples aspirated from diagnosed cases of peritonsillar abscess and submitted for culture and sensitivity in last two years were included in this study. Identification of different microorganisms was made on the basis of the microscopic findings, observation of their colony morphology and standard biochemical reactions. Susceptibility pattern to commonly used antibiotics were determined by Clinical Laboratory Standards Institute (CLSI) guidelines. RESULTS: Altogether 24 pus samples were included in the study. Positive culture was obtained from 18 samples. Among them one organism was isolated from 13 samples whereas from five samples multiple organisms were isolated. From six samples no organisms could be cultured. Altogether Streptococcus pyogenes was isolated from 12 samples and Staphylococcus aureus from five samples. Other isolated organisms included Haemophlilus influenzae, Pseudomonas aeruginosa, Escherichia coli and Enterococcus species. Penicillin was effective for Streptococcus pyogenes whereas Staphylococcus aureus was resistant to it. Cloxacillin was found to be effective for Staphylococcus aureus. Ciprofloxacin and Ceftazidime were found to be effective for both organisms. CONCLUSIONS: Streptococcus pyogenes and Staphylococcus aureus were more commonly associated with peritonsillar abscess. Streptococcus pyogenes were sensitive to penicillin but all Staphylococcus aureus were resistant to it. This fact should be considered in clinical practice for management of peritonsillar abscess. KEYWORDS: Bacteriology, Peritonsillar abscess, Susceptibility pattern.

Prevalence and antibiotic susceptibility of bacteria isolated in patients affected with blepharitis in a tertiary eye centre in Spain

2019 ◽  
Vol 30 (5) ◽  
pp. 991-997
Author(s):  
Alessandro de Paula ◽  
Gloria Oliva ◽  
Rafael Ignacio Barraquer ◽  
Maria Fideliz de la Paz
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Antibiotic Susceptibility ◽  
Blood Agar ◽  
Coagulase Negative Staphylococcus ◽  
Susceptibility Pattern ◽  
Erythromycin Resistance ◽  
Antibiotic Susceptibility Pattern ◽  
Resistance To Penicillin ◽  
And Staphylococcus Aureus

Purpose: To describe which bacteria can be found on lid margins in patients affected with blepharitis, to show their antibiotic susceptibility pattern, and to evaluate the antibiotic resistance trend of coagulase-negative Staphylococcus through time. Materials and methods: Consecutive cases of 198 eyes affected with blepharitis between 2012 and 2018 were reviewed. A sample was collected by rubbing a swab against the base of the eyelashes of both the eyes of all patients. The samples were inoculated in blood agar and chocolate agar. The susceptibility of the identified bacteria to common antibiotics was tested. In addition, the antibiotic susceptibility pattern of coagulase-negative Staphylococcus detected from year 2016 to 2018 was compared with that of 4 years before. Results: The most common isolated bacterium was coagulase-negative Staphylococcus (89%) and Staphylococcus aureus (28%). Coagulase-negative Staphylococcus showed highest susceptibility to vancomycin (100%), neomycin (94%) and chloramphenicol (91%). Coagulase-negative Staphylococcus and Staphylococcus aureus were the most resistant to penicillin and erythromycin (resistance in 92%, 91% for coagulase-negative Staphylococcus, 86% and 43% of eyes for Staphylococcus aureus). Corynebacterium was resistant to oxacillin and erythromycin. Streptococcus viridans showed resistance to gentamycin and tobramycin. Moraxella was susceptible to most antibiotics. Bacillus was resistant to oxacillin. The antibiotic resistance trend of coagulase-negative Staphylococcus showed that the resistance to rifampicin increased through the years 2012–2018. Conclusion: Coagulase-negative Staphylococcus and Staphylococcus aureus were the most isolated bacteria in patients affected by blepharitis in our tertiary eye centre. Both bacteria were resistant to erythromycin. Through the years, it seems that coagulase-negative Staphylococcus gained resistance to penicillin, erythromycin, ciprofloxacin and rifampicin.

scholarly journals Antibiotic susceptibility pattern of staphylococcus aureus and methicillin-resistant staphylococcus aureus in a tertiary care hospital

2014 ◽  
Vol 4 (7) ◽  
pp. 548-551 ◽  
Author(s):  
CP Bhatt ◽  
BMS Karki ◽  
B Baral ◽  
S Gautam ◽  
A Shah ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Susceptibility ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Penicillin G ◽  
Care Hospital ◽  
Age Group ◽  
Susceptibility Pattern ◽  
Antibiotic Susceptibility Pattern ◽  
Methicillin Resistant ◽  
Drug Of Choice

Background: Methicillin resistant Staphylococcus aureushas emerged as one of the most important nosocomial pathogens. It invokes a tremendous financial burden and enhanced morbidity and mortality due to difficult to treat systemic infections.Aim of this study was to determine antibiotic susceptibility pattern of Staphylococcus aureus and Methicillin resistant Staphylococcus aureus. Materials and Methods: Different clinical specimens were collected and processed for routine culture and antibiotic sensitivity test by standard microbiology techniques. Results: Out of 1173 samples received for microbiological examination, 100 were found to be S. aureus with 19% cases were Methicillin resistant Staphylococcus aureus (MRSA). Fourteen MRSA were found from inpatient and 5 were from outpatient. MRSA was found higher in female than male and maximum number (31.5%) was found in age group 0-10 years. Staphylococcus aureus was 100% sensitive to Vancomycin followed by Amikacin (90%), Gentamycin (83%), and tetracycline (81%). On urine isolates Nitrofurantoin(91.6%) was drug of choice. All the isolates were resistant to Penicillin G. In case of Methicillin resistant Staphylococcus aureus showed 100% sensitive to Vancomycin followed by Amikacin (84.2%), Tetracycline (63.1%), Ciprofloxacin (42%) and Gentamycin (36.8%). Among urine isolates Nitrofutantoin showed 87.5% sensitive followed by Norfloxacin (75%). Conclusion: Methicillin resistant Staphylococcus aureus was found 19% of Staphylococcus aureus isolates. It was most common in females, hospitalized patients and young age group. Vancomycin seems to be drug of choice followed by Amikacin. It would be helpful to formulating and monitoring the antibiotic policy and ensure proper empiric treatment. DOI: http://dx.doi.org/10.3126/jpn.v4i7.10297 Journal of Pathology of Nepal (2014) Vol. 4, 548-551   

scholarly journals Isolation of Aerobic Bacteria from Surgical Site Infection and their Antibiotic Susceptibility Pattern

2017 ◽  
Vol 2 (2) ◽  
pp. 28-32
Author(s):  
Shahin Ara Begum ◽  
Shabeen Afreen ◽  
Aliya Rashid ◽  
Nasreen Farhana
Keyword(s):  
Staphylococcus Aureus ◽  
Surgical Site Infection ◽  
Antibiotic Susceptibility ◽  
Aerobic Bacteria ◽  
Site Infection ◽  
Susceptibility Pattern ◽  
Antibiotic Susceptibility Pattern ◽  
Gram Negative ◽  
Causative Agents ◽  
Gram Positive Cocci

Background: Surgical site infection is one of the commonest complications after surgical intervention. Source of wound infections may be exogenous or endogenous. Wound swabs culture is the most frequently used method for confirming the diagnosis of surgical site infection. A regular bacteriological review is necessary to identify the causative agents and their antibiotic susceptibility pattern.Objective: The purpose of the present study was to find out the aerobic bacteria from wound swabs culture and their antibiotic susceptibility pattern.Methodology: A total of 175 wound swabs sample were collected aseptically from surgical site infection during the study period. Standard bacteriological methods were used for isolation and identification of organisms and their susceptibility pattern.Results: A total of 175 wound swab samples were collected from surgery departments. Out of 175 samples 102 (58.28%) were positive by culture. Among the isolated organisms the gram negative bacilli were predominant 67 (65.68%) than the gram positive cocci 35 (34.32%).The most common isolated bacteria were Escherichia.coli 30(29.41%) followed by Staphylococcus aureus 28 (27.45%) Pseudomonous areuginosa 20(29.85%), Acinetobacter spp 08(11.94%), Coaggulase negative Staphylococcus (CONS) 07(6.86%) Klebsiella pneumoniae 05(4.90%), Proteus spp 03(4.45%), and Citobacter spp 01(1.49%). Among the total 175 samples 114(65.14%) were collected from male patients and 61(34.86%) were from female patients. All the isolated gram negative bacilli showed resistant to all antibiotics and all isolated gram positive cocci were resistant to all antibiotics except Linezolid. Among the isolated Staphylococcus aureus 8 (24.85%) were MRSA and one (3.57%) were VRSA. The most effective antibiotics were Amikacin, Meropenem, Imipenem and Tazobactam in this study.Conclusion: Surgical site infections remain the commonest post operative complications after surgery and one of the commonest encountered hospital acquired infections. Therefore, periodic review needs be done to find out the causative agents and their antibiotic susceptibility pattern for better treatment and managementBangladesh Journal of Infectious Disease 2015;2(2):28-32

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