S Sankar1, H Narayanan, S Kuppanan, B Nandagopal. 1. Division of Biomedical Research, Sri Narayani Hospital and Research Center, Thirumalaikodi, Sripuram, Vellore 632 055, Tamil Nadu, India. sathish3107@gmail.com
Abstract
PURPOSE: Extended-spectrum β-lactamase (ESBL) producers were reported only from hospital settings previously, but, nowadays, its common presence in community settings is evident from reports. Our primary aim was to assess the frequency of ESBL-producing Gram-negative bacteria (GNB) and their antibiogram pattern among the clinical isolates received during an 8-month time period. METHODS: The clinical isolates which belonged to the family Enterobacteriaceae from the clinical specimens were included in the study. These clinical isolates were tested for ESBL production using the double-disk synergy test. RESULTS: In total, 301 patients were included in this study, of which 146 (48.50 %) were found to harbor strains of ESBL producers. The acquisition of ESBL in relation to age, sex, inhabitancy, inpatients, and outpatients was also analyzed. In our study, 50.29 % of inpatients and 45.86 % of outpatients were found to harbor ESBL producers. The difference between the two groups was not statistically significant. We found five meropenem-resistant ESBL-producing strains among the 146 ESBL producers. Rural inhabitants were found to contain more ESBLs when compared to peri-urban inhabitants. CONCLUSION: The study showed a high frequency of ESBLs in both community-acquired and hospital-acquired infections. The frequency of ESBLs was higher among isolates from patients who were from rural populations than those from peri-urban populations. The data on ESBL frequency suggests the need for a rational antibiotic use which would reduce the spread of ESBL-producing members of the family Enterobacteriaceae.
PURPOSE: Extended-spectrum β-lactamase (ESBL) producers were reported only from hospital settings previously, but, nowadays, its common presence in community settings is evident from reports. Our primary aim was to assess the frequency of ESBL-producing Gram-negative bacteria (GNB) and their antibiogram pattern among the clinical isolates received during an 8-month time period. METHODS: The clinical isolates which belonged to the family Enterobacteriaceae from the clinical specimens were included in the study. These clinical isolates were tested for ESBL production using the double-disk synergy test. RESULTS: In total, 301 patients were included in this study, of which 146 (48.50 %) were found to harbor strains of ESBL producers. The acquisition of ESBL in relation to age, sex, inhabitancy, inpatients, and outpatients was also analyzed. In our study, 50.29 % of inpatients and 45.86 % of outpatients were found to harbor ESBL producers. The difference between the two groups was not statistically significant. We found five meropenem-resistant ESBL-producing strains among the 146 ESBL producers. Rural inhabitants were found to contain more ESBLs when compared to peri-urban inhabitants. CONCLUSION: The study showed a high frequency of ESBLs in both community-acquired and hospital-acquired infections. The frequency of ESBLs was higher among isolates from patients who were from rural populations than those from peri-urban populations. The data on ESBL frequency suggests the need for a rational antibiotic use which would reduce the spread of ESBL-producing members of the family Enterobacteriaceae.
Authors: Tahaniyat Lalani; Jay B Varkey; Richard Drew; Lizzie Harrell; Sarah McGarry; John G Engemann; Melissa D Johnson; Keith S Kaye Journal: Scand J Infect Dis Date: 2008
Authors: R Ben-Ami; M J Schwaber; S Navon-Venezia; D Schwartz; M Giladi; I Chmelnitsky; A Leavitt; Y Carmeli Journal: Clin Infect Dis Date: 2006-02-27 Impact factor: 9.079
Authors: Anthony D Harris; Jessina C McGregor; Judith A Johnson; Sandra M Strauss; Anita C Moore; Harold C Standiford; Joan N Hebden; J Glenn Morris Journal: Emerg Infect Dis Date: 2007-08 Impact factor: 6.883
Authors: Esther Kuenzli; Veronika K Jaeger; Reno Frei; Andreas Neumayr; Susan DeCrom; Sabine Haller; Johannes Blum; Andreas F Widmer; Hansjakob Furrer; Manuel Battegay; Andrea Endimiani; Christoph Hatz Journal: BMC Infect Dis Date: 2014-10-01 Impact factor: 3.090