Antibiotic Molecules Involved in Increasing Microbial Resistance

2019 ◽  
Vol 70 (7) ◽  
pp. 2622-2626 ◽  
Author(s):  
Letitia Doina Duceac ◽  
Constantin Marcu ◽  
Daniela Luminita Ichim ◽  
Irina Mihaela Ciomaga ◽  
Elena Tarca ◽  
...  

Over the past two decades, the resistance to antibiotics, especially for Gram-negative bacteria, has increased at an alarming rate, requiring constant concern for resolving and controlling this extremely important therapeutic aspect in any medical department but in particular, in Anaesthesia and Intensive Care Units, in units of neonatology, paediatrics, neurosurgery, burned patients and immunosuppressed. Specialists note a particular concern for the resistance of Enterobacteriaceae to third-generation cephalosporins and aztreonam, with a resistance profile frequently associated with the expression of extended-spectrum �-lactamases (ESBL). The Enterobacter genus comprises 14 species, but two are of medical interest, Enterobacter aerogenes and E. cloacae, which are involved in inducing healthcare-associated infections such as urinary tract infections, pneumonia associated with mechanical ventilation, bacteremia, septicemia, etc. The purpose of the study was to highlight the antibiotic molecules in which microbial resistance of some circulating strains of enterobacteria was detected. A descriptive and retrospective study was conducted between 2012-2017, on a batch of 35 patients, admitted to the Sf. Maria Emergency Clinical Hospital for Children of Iasi, from whom various pathological products were collected to highlight the Enterobacter sp strains involved in the production of infections associated with the inpatient medical care. The antimicrobial sensitivity of each strain was determined by diffusimetric method, while the interpretation criteria were considered to be those of the laboratory standards. Most cases were reported in 2017 (31.42%). The majority were registered in new-borns (42.85%) and infants (25.71%). The Anaesthesia and Intensive Care Units and Neonatology Anaesthesia and Intensive Care Units departments were the most involved. Microbial antibacterial resistance of Enterobacter sp isolates showed that all manifested resistance to ampicillin, amoxicillin and clavulanic acid, 48.57% were resistant to Cefuroxime, 42.85% resistant to Ceftazidime and Ceftriaxone, 14.28% to ciprofloxacin, 11.42% to ertapenem, 5.71% to Meronem. Although it showed relatively few cases with infections associated with healthcare in which strains of Enterobacter sp. were isolated our study, which was carried out over a period of 5 years, provides useful indications regarding the prevalence of healthcare associated infections with Enterobacter sp in paediatric patients and guidelines for antibiotic therapy.

2017 ◽  
Vol 39 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Jason G. Lake ◽  
Lindsey M. Weiner ◽  
Aaron M. Milstone ◽  
Lisa Saiman ◽  
Shelley S. Magill ◽  
...  

OBJECTIVETo describe pathogen distribution and antimicrobial resistance patterns for healthcare-associated infections (HAIs) reported to the National Healthcare Safety Network (NHSN) from pediatric locations during 2011–2014.METHODSDevice-associated infection data were analyzed for central line-associated bloodstream infection (CLABSI), catheter-associated urinary tract infections (CAUTI), ventilator-associated pneumonia (VAP), and surgical site infection (SSI). Pooled mean percentage resistance was calculated for a variety of pathogen-antimicrobial resistance pattern combinations and was stratified by location for device-associated infections (neonatal intensive care units [NICUs], pediatric intensive care units [PICUs], pediatric oncology and pediatric wards) and by surgery type for SSIs.RESULTSFrom 2011 to 2014, 1,003 hospitals reported 20,390 pediatric HAIs and 22,323 associated pathogens to the NHSN. Among all HAIs, the following pathogens accounted for more than 60% of those reported: Staphylococcus aureus (17%), coagulase-negative staphylococci (17%), Escherichia coli (11%), Klebsiella pneumoniae and/or oxytoca (9%), and Enterococcus faecalis (8%). Among device-associated infections, resistance was generally lower in NICUs than in other locations. For several pathogens, resistance was greater in pediatric wards than in PICUs. The proportion of organisms resistant to carbapenems was low overall but reached approximately 20% for Pseudomonas aeruginosa from CLABSIs and CAUTIs in some locations. Among SSIs, antimicrobial resistance patterns were similar across surgical procedure types for most pathogens.CONCLUSIONThis report is the first pediatric-specific description of antimicrobial resistance data reported to the NHSN. Reporting of pediatric-specific HAIs and antimicrobial resistance data will help identify priority targets for infection control and antimicrobial stewardship activities in facilities that provide care for children.Infect Control Hosp Epidemiol 2018;39:1–11


2015 ◽  
Vol 36 (10) ◽  
pp. 1139-1147 ◽  
Author(s):  
Hajime Kanamori ◽  
David J. Weber ◽  
Lauren M. DiBiase ◽  
Emily E. Sickbert-Bennett ◽  
Rebecca Brooks ◽  
...  

OBJECTIVETargeted surveillance has focused on device-associated infections and surgical site infections (SSIs) and is often limited to healthcare-associated infections (HAIs) in high-risk areas. Longitudinal trends in all HAIs, including other types of HAIs, and HAIs outside of intensive care units (ICUs) remain unclear. We examined the incidences of all HAIs using comprehensive hospital-wide surveillance over a 12-year period (2001–2012).METHODSThis retrospective observational study was conducted at the University of North Carolina (UNC) Hospitals, a tertiary care academic facility. All HAIs, including 5 major infections with 14 specific infection sites as defined using CDC criteria, were ascertained through comprehensive hospital-wide surveillance. Generalized linear models were used to examine the incidence rate difference by infection type over time.RESULTSA total of 16,579 HAIs included 6,397 cases in ICUs and 10,182 cases outside ICUs. The incidence of overall HAIs decreased significantly hospital-wide (−3.4 infections per 1,000 patient days), in ICUs (−8.4 infections per 1,000 patient days), and in non-ICU settings (−1.9 infections per 1,000 patient days). The incidences of bloodstream infection, urinary tract infection, and pneumonia in hospital-wide settings decreased significantly, but the incidences of SSI and lower respiratory tract infection remained unchanged. The incidence of Clostridium difficile infection (CDI) increased remarkably. The outcomes were estimated to include 700 overall HAIs prevented, 40 lives saved, and cost savings in excess of $10 million.CONCLUSIONSWe demonstrated success in reducing overall HAIs over a 12-year period. Our data underscore the necessity for surveillance and infection prevention interventions outside of the ICUs, for non–device-associated HAIs, and for CDI.Infect Control Hosp Epidemiol 2015;36(10):1139–1147


2009 ◽  
Vol 30 (7) ◽  
pp. 659-665 ◽  
Author(s):  
Simone Lanini ◽  
William R. Jarvis ◽  
Emanuele Nicastri ◽  
Gaetano Privitera ◽  
Giovanni Gesu ◽  
...  

Objective.Healthcare-associated infections (HAIs) are an important cause of morbidity and mortality worldwide. During the period from 2002 through 2004, a group of Italian hospitals was recruited to conduct HAI point-prevalence surveys.Design.Three point-prevalence surveys.Methods.A total of 9,609 patients were surveyed.Results.The overall frequency of HAI was 6.7% (645 infections among the 9,609 surveyed patients). The most frequent HAIs were lower respiratory tract infections, which accounted for 35.8% (231 of 645 HAIs) of all HAIs, followed by urinary tract infections (152 [23.6%] of 645 HAIs), bloodstream infections (90 [14.0%] of 645 HAIs), and surgical site infections (79 [12.2%] of 645 HAIs). In both multivariate and univariate analysis, invasive procedures, duration of stay, chemotherapy, trauma, coma, and the location of the hospital were all factors statistically significantly associated with the occurrence of an HAL Enterobacteriaceae were the most common isolates recovered in medical and surgical wards, whereas gram-negative aerobic bacilli were the most common isolates recovered in intensive care units. Approximately one-half of all of the patients surveyed were receiving antibiotics at the time of our study; the most used antibiotic classes were fluoroquinolones in medical wards, cephalosporins in surgical wards, and penicillins and glycopeptides in intensive care units.Conclusion.Our study emphasizes the need for implementing further HAI surveillance to provide the National Health System with proper tools to prevent and manage infection in hospitalized patients.


Author(s):  
Mehmet Emirhan Işık ◽  
Ergin Arslanoğlu ◽  
Ömer Faruk Şavluk ◽  
Hakan Ceyran

Objectives: Healthcare-associated infections are the most common problem in intensive care unit worldwide. Children with congenital heart diseases have many complications such as developmental problems, respiratory tract infections, endocarditis,pneumonia and after long-term hospital and intensive care stays and surgeries patients become vulnerable to healthcare-associated infections. Patients and Methods: The study presents the frequency of infection, microorganisms in patients hospitalized at SBÜ Koşuyolu High Spesialization Research and Training Hospital pediatric cardiovascular surgery intensive care unit between 2016-2020. Results: One hundred-eight HAI episodes were seen in 83 of 1920 patients hospitalized in pediatric cardiovascular surgery intensive care unit between 2016-2020.HAI rates varied between 4.8% and 7.77%. In the 5-year period,a total of 118 different microorganisms were detected.Among all microorganisms, Candida species (n: 43, 36.4%) ranked first. central line-associated bloodstream infections (CLABSI) 53 (49%), ventilator-associated pneumonia (VAP)40 (37%), surgical site infection (SSI) 8 (6.5%), catheter -associated urinary tract infection (CAUTI) 7 (6%) Conclusion: Healthcare-associated infections are require special attention in pediatric cardiovascular intensive care units. In order to prevent, innovations such as bundle applications should be implemented as well as personnel training.


Healthcare ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1349
Author(s):  
Yu-Ren Lin ◽  
Yen-Yue Lin ◽  
Chia-Peng Yu ◽  
Ya-Sung Yang ◽  
Chun-Gu Cheng ◽  
...  

Background: Healthcare-associated infections (HAIs) cause increases in length of stay, mortality, and healthcare costs. A previous study conducted in Taiwan obtained similar results to those reported in Korea and Japan in 2015. Changes in microorganisms have been noted in recent years. Understanding the recent condition of HAIs in intensive care units (ICUs) can enable healthcare providers to develop effective infection control protocols to reduce HAIs. Methods: We used the Taiwan Nosocomial Infection Surveillance System to evaluate the incidence densities of HAIs, the proportions of causative pathogens, and the proportions of antimicrobial resistance (AMR). The Poisson regression model was constructed to incidence density, and the chi-square test was used to assess proportion. Results: The incidence density of HAIs decreased 5.7 to 5.4 per 1000 person-days. However, the proportions of Klebsiella pneumoniae and Enterococcus faecium significantly increased. In addition, the proportions of carbapenem-resistant K. pneumoniae and vancomycin-resistant Enterococcus faecium significantly increased over time. Conclusion: Analysis of the microorganisms involved in HAIs in ICUs showed elevated proportions of K. pneumoniae and E. faecium with AMR. Infection control protocols have been implemented for several years and require improvements regarding environmental cleanliness and medical staff prevention.


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