scholarly journals The Management of Infection and Colonization due to Methicillin-ResistantStaphylococcus aureus: A CIDS/CAMM Position Paper

2004 ◽  
Vol 15 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Andrew E Simor ◽  
Mark Loeb ◽  
the CIDS/CAMM Guidelines Committee

Methicillin-resistantStaphylococcus aureus(MRSA) is being seen with greater frequency in most hospitals and other health care facilities across Canada. The organism may cause life-threatening infections and has been associated with institutional outbreaks. Several studies have confirmed that MRSA infection is associated with increased morbidity and mortality compared with infections caused by susceptible strains, even when the presence of comorbidities is accounted for. Treatment of MRSA infection is complicated by the fact that these organisms are resistant to multiple antimicrobial agents, so treatment options are limited. The effectiveness of decolonization therapy (attempting to eradicate MRSA carriage) is also uncertain. This paper reviews the medical management of MRSA infections, discusses the potential role of decolonization and provides an overview of evidence to support recommended infection control practices.

2018 ◽  
Vol 33 (3) ◽  
pp. 76-79
Author(s):  
Sonal Gupta ◽  
Bibhabati Mishra ◽  
Archana Thankur ◽  
Vinita Dogra ◽  
Poonam S. Loomba ◽  
...  

Background: Methicillin-resistant Staphylococcus aureus (MRSA) infection is associated with increased morbidity and mortality compared with infections caused by methicillin-sensitive Staphylococcus aureus (MSSA). Treatment of MRSA infection is complicated by the fact that these organisms are resistant to multiple antimicrobial agents, so treatment options are limited. The aim of the present study is determine risk factors association with MRSA as compared with MSSA and to compare the minimum inhibitory concentrations (MICs) of vancomycin, teicoplanin, linezolid and erythromycin to MRSA and MSSA.Methods: A nine-month prospective study was carried out. Staphylococcus aureus strains with clinical correlation, isolated from hospitalised patients, were included in the study. MIC of vancomycin, teicoplanin, linezolid and erythromycin was determined by E-test (HIMEDIA). Risk factors such as immunosuppression, previous hospitalisation, surgical procedure done, invasive devices and antibiotic therapy were determined by a pre-set protocol.Results: A total of 62 S. aureus strains were included in the study. Some 40% of S. aureus strains were methicillin resistant. The risk factors, invasive devices, previous hospitalisation and comorbid illness were found to be significantly associated with MRSA. Borderline significant association was observed with immunosuppression and antibiotic therapy. Erythromycin resistance was observed in 56% of MRSA, while no resistance was observed in MSSA. Teicoplanin MIC50 values and mean MIC were found to be lowest in vitro among vancomycin and linezolid against both MRSA and MSSA. The efficacy of teicoplanin, in terms of clinical and microbiological cure, has not been proven to be superior to vancomycin, but it has a better toxicity profile and has demonstrated a reduced risk of adverse events. Conclusions: Minimising risk factors and attention to alternative antibiotics and infection control practices may ease the problem of management of infections with MRSA.


2021 ◽  
Vol 74 (1) ◽  
Author(s):  
Daniel Crespo-Piazuelo ◽  
Peadar G. Lawlor

AbstractSince the 1940s, Staphylococcus aureus has adapted to the use of different antimicrobials to treat infections. Although S. aureus can act as a commensal bacterium, some strains are facultative pathogens and acquiring them can be fatal. In particular, treating infections caused by S. aureus with acquired antimicrobial resistance is problematic, as their treatment is more difficult. Some of these S. aureus variants are methicillin-resistant S. aureus (MRSA) with prevalence across the globe in health-care facilities, community settings and on livestock farms. Apart from humans, MRSA can colonise other animal species, and because of this, resistance to new antimicrobials can appear and jump between species. Livestock and companion animals are particularly important in this regard considering the relatively high usage of antimicrobials in these species. There is a risk to humans who come into direct contact with animals acquiring MRSA but there is also the risk of animals acquiring MRSA from colonised humans. In this review, we summarise studies conducted worldwide to characterise the prevalence of MRSA in veterinarians, farmers and other personnel who come into close contact with animals. Finally, alternative treatment, preventive measures and on-farm strategies to reduce MRSA introduction to a farm and carriage within a herd are discussed.


2020 ◽  
Vol 7 (6) ◽  
Author(s):  
Michael Dagher ◽  
Vance G Fowler ◽  
Patty W Wright ◽  
Milner B Staub

Abstract Historically, intravenous (IV) antibiotics have been the cornerstone of treatment for uncomplicated Staphylococcus aureus bacteremia (SAB). However, IV antibiotics are expensive, increase the rates of hospital readmission, and can be associated with catheter-related complications. As a result, the potential role of oral antibiotics in the treatment of uncomplicated SAB has become a subject of interest. This narrative review article aims to summarize key arguments for and against the use of oral antibiotics to complete treatment of uncomplicated SAB and evaluates the available evidence for specific oral regimens. We conclude that evidence suggests that oral step-down therapy can be an alternative for select patients who meet the criteria for uncomplicated SAB and will comply with medical treatment and outpatient follow-up. Of the currently studied regimens discussed in this article, linezolid has the most support, followed by fluoroquinolone plus rifampin.


2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Alain C. Juayang ◽  
Gemma B. de los Reyes ◽  
April Joy G. de la Rama ◽  
Christine T. Gallega

MRSA infection can affect a wide array of individuals that may lead to treatment failure. Also, the infection has the potential to spread from one area to another particularly health care facilities or communities eventually causing minor outbreaks. With this premise, the study aimed to describe MRSA infections using the hospital-based data of a tertiary hospital in Bacolod City, Philippines, from 2010 to 2012. Specifically, this study aimed to evaluate the antimicrobial resistance ofS. aureusisolated from clinical specimens and to put emphasis on the prevalence of MRSA and Inducible Clindamycin Resistance. A total of 94 cases from 2010 to 2012 were diagnosed to haveS. aureusinfection using conventional bacteriologic methods. From these cases, 38 (40.6%) were identified as MRSA and 37 (39.4%) were inducible clindamycin resistant. Wounds and abscesses were considered to be the most common specimens with MRSA infections having 71.05% while blood was the least with 5.3%. For drug susceptibility, out of the 94S. aureuscases, including MRSA, 100% were susceptible to linezolid making it the drug of choice for this study. It was then followed by tetracycline having a mean susceptibility of 95%;, while penicillin G was ineffective with 94 cases having 0% susceptibility.


2021 ◽  
pp. 002214652110444
Author(s):  
Orlaith Heymann ◽  
Tamika Odum ◽  
Alison H. Norris ◽  
Danielle Bessett

Recent shifts in the abortion provision landscape have generated increased concern about how people find abortion care as regulations make abortion less accessible and clinics close. Few studies examine the reasons that people select particular facilities in such constrained contexts. Drawing from interviews with 41 Ohio residents, we find that people’s clinic selections are influenced by the risks they associate with abortion care. Participants’ strategies for selecting an abortion clinic included: drawing on previous experience with clinics, consulting others online, discerning reputation through name recognition and clinic type, and considering location, especially perceptions about place (privacy, legality, safety). We argue that social myths inform the risks people anticipate when seeking health care facilities, shaping care seeking in ways that are both abortion-specific and more general. These findings can also inform research in other health care contexts where patients increasingly find their options constrained by rising costs, consolidation, and facility closure.


2020 ◽  
Vol 8 (2) ◽  
pp. 081-084
Author(s):  
Pierrette Ngo Bahebeck ◽  
Mireille Ebiane Nougang ◽  
Paul Alain Nana ◽  
Claire Stéphane Metsopkeng ◽  
Antoine Tamsa Arfao ◽  
...  

A bacteriological and physicochemical study was conducted in the waters of farms in mountainous regions of Cameroon. The different water samples were collected during two campaigns in December 2018 and February 2019. Ten stations representing the drinking water supply points in our study area were identified. The results showed that these waters contained both pathogenic and commensal fecal bacteria. The highest abundances reached 10x103 CFU/100mL for Salmonella sp., 72x103 CFU/100mL for Staphylococcus aureus, 102x103 CFU/100mL for Brucella suis and 40x103 CFU/100mL for Brucella abortus. These abundances were subject to space-time fluctuations. Water contamination by tweezers was not general and was present only in surface waters (rivers and ponds). The water in the ponds, rivers and wells analyzed were all basic, with low mineralization on average. The dissolved oxygen ranged from 37.5 to 70.6%, nitrate from 3.7 to 19.8 mg/L and iron from 0.01 to 3.5 mg/L. Most of the physicochemical parameters were relatively stable during the two campaigns. The degree of correlation between the physicochemical parameters and the abundance dynamics of the isolated bacteria was heterogeneous. This was clearly more pronounced with Salmonella sp. and Brucella suis. This would be due to the fraction of metabolically active cells present when the bacteria are exposed to unfavorable conditions. Correlations with the abiotic factors were less marked with Staphylococcus aureus and Brucella abortus; this would be due to their tolerance to environmental stresses.


2021 ◽  
Vol 9 ◽  
Author(s):  
Nadim Cassir ◽  
Isabelle Grandvuillemin ◽  
Manon Boxberger ◽  
Priscilla Jardot ◽  
Farid Boubred ◽  
...  

Necrotizing enterocolitis is a life-threatening acquired gastrointestinal disorder among preterm neonates and is associated with a high mortality rate and long-term neurodevelopmental morbidity. No etiologic agent has been definitively established; nonetheless, the most implicated bacteria include members of the Clostridium genus. We reported here on a case of Clostridium neonatale bacteremia in a preterm neonate with necrotizing enterocolitis, providing more information regarding the potential role of this bacterium in pathogenesis of necrotizing enterocolitis. We emphasized the sporulating form of C. neonatale that confers resistance to disinfectants usually applied for the hospital environmental cleaning. Further works are needed to establish the causal relationship between the occurrence of NEC and the isolation of C. neonatale, with promising perspectives in terms of diagnostic and therapeutic management.


2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Konstantinos Bouliaris ◽  
Dimos Karangelis ◽  
Marios Daskalopoulos ◽  
Konstantinos Spanos ◽  
Michael Fanariotis ◽  
...  

Despite the fact that the vast majority of splenic ruptures are traumatic, infectious mononucleosis has been incriminated as a major predisposing factor that affects the integrity of the spleen, thus causing atraumatic ruptures and life-threatening hemorrhages. Herein we present a case of a 23-year-old Caucasian male who underwent an emergency laparotomy for acute abdomen and hemorrhagic shock, caused by spontaneous splenic rupture secondary to infectious mononucleosis. The potential role of salicylates in the development of a hemorrhagic complication in a patient with infectious mononucleosis is discussed.


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