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Journal of Global Antimicrobial... Mar 2023Antimicrobial resistance (AMR) is a global concern among infectious diseases. Bloodstream infections can potentially become life-threatening if they become untreatable... (Review)
Review
OBJECTIVES
Antimicrobial resistance (AMR) is a global concern among infectious diseases. Bloodstream infections can potentially become life-threatening if they become untreatable with conventional antimicrobials. This review aims to provide an understanding of the AMR prevalence and trends of common bacteremic pathogens, namely Escherichia coli and Staphylococcus aureus in the World Health Organization (WHO) Africa region.
METHODS
PubMed and Google Scholar were searched using relevant keywords for published human studies (excluding case reports and reviews) reporting bacteremic AMR data on the pathogens of interest between 2008 and 2019. Two reviewers independently screened the articles against a pre-defined eligibility criterion. Data extraction and analysis were achieved with different platforms: Covidence, Excel, R version 3.6.3, and QGIS v3.4.5. The pooled prevalence, 95% confidence intervals, and I index (a measure of heterogeneity) were calculated for the various pathogen-antibiotic combinations.
RESULTS
Five hundred sixty-two papers were retrieved, with 27 papers included in the final analysis. Only 23.4% (11/47) of member states of the WHO African region had reports on AMR in bacteremia. The Clinical and Laboratory Standards Institute (CLSI) (78.5%) was the most common standard used in the region. For E. coli, the pooled resistance was: cefotaxime (42%), imipenem (4%), meropenem (0%), and colistin (0%). For S. aureus, the calculated pooled resistance was cloxacillin (34%), oxacillin (12%), and vancomycin (0%). There was a high degree of variation across studies (I > 90%).
CONCLUSION
The pooled resistance rates indicate a concerning degree of methicillin-resistant and Extended Spectrum-ß-lactamase-producing pathogens. The paucity of AMR data also presents challenges for a comprehensive understanding of the situation in the region. Continent-wide and standardized surveillance efforts therefore need strengthening.
Topics: Humans; Staphylococcus aureus; Anti-Bacterial Agents; Escherichia coli; Prevalence; Drug Resistance, Bacterial; Staphylococcal Infections; Bacteremia; Africa
PubMed: 36526264
DOI: 10.1016/j.jgar.2022.11.016 -
Antibiotics (Basel, Switzerland) Feb 2024Optimizing antibiotic therapy is imperative with rising bacterial resistance and high infection mortality. Extended infusion defined as a continuous infusion (COI) or... (Review)
Review
Optimizing antibiotic therapy is imperative with rising bacterial resistance and high infection mortality. Extended infusion defined as a continuous infusion (COI) or prolonged infusion (PI) of beta-lactams and glycopeptides might improve efficacy and safety compared to their intermittent administration (IA). This study aimed to evaluate the efficacy and safety of extended infusion in pediatric patients. Adhering to Cochrane standards, we conducted a systematic review with meta-analysis investigating the efficacy and safety of COI (24 h/d) and PI (>1 h/dose) compared to IA (≤1 h/dose) of beta-lactams and glycopeptides in pediatrics. Primary outcomes included mortality, clinical success, and microbiological eradication. Five studies could be included for the outcome mortality, investigating meropenem, piperacillin/tazobactam, cefepime, or combinations of these. The pooled relative risk estimate was 0.48 (95% CI 0.26-0.89, = 0.02). No significant differences between the administration modes were found for the outcomes of clinical success, microbiological eradication (beta-lactams; glycopeptides), and mortality (glycopeptides). No study reported additional safety issues, e.g., adverse drug reactions when using COI/PI vs. IA. Our findings suggest that the administration of beta-lactams by extended infusion leads to a reduction in mortality for pediatric patients.
PubMed: 38391550
DOI: 10.3390/antibiotics13020164 -
British Journal of Clinical Pharmacology Feb 2019Beta-lactam dose optimization in critical care is a current priority. We aimed to review the pharmacokinetics (PK) of three commonly used beta-lactams (amoxicillin ±...
AIMS
Beta-lactam dose optimization in critical care is a current priority. We aimed to review the pharmacokinetics (PK) of three commonly used beta-lactams (amoxicillin ± clavulanate, piperacillin-tazobactam and meropenem) to compare PK parameters reported in critically and noncritically ill neonates, children and adults, and to investigate whether allometric and maturation scaling principles could be applied to describe changes in PK parameters through life.
METHODS
A systematic review of PK studies of the three drugs was undertaken using MEDLINE and EMBASE. PK parameters and summary statistics were extracted and scaled using allometric principles to 70 kg individual for comparison. Pooled data were used to model clearance maturation and decline using a sigmoidal (Hill) function.
RESULTS
A total of 130 papers were identified. Age ranged from 29 weeks to 82 years and weight from 0.9-200 kg. PK parameters from critically ill populations were reported with wider confidence intervals than those in healthy volunteers, indicating greater PK variability in critical illness. The standard allometric size and sigmoidal maturation model adequately described increasing clearance in neonates, and a sigmoidal model was also used to describe decline in older age. Adult weight-adjusted clearance was achieved at approximately 2 years postmenstrual age. Changes in volume of distribution were well described by the standard allometric model, although amoxicillin data suggested a relatively higher volume of distribution in neonates.
CONCLUSIONS
Critical illness is associated with greater PK variability than in healthy volunteers. The maturation models presented will be useful for optimizing beta-lactam dosing, although a prospective, age-inclusive study is warranted for external validation.
Topics: Adult; Age Factors; Amoxicillin-Potassium Clavulanate Combination; Anti-Bacterial Agents; Bacterial Infections; Biological Variation, Population; Child; Critical Illness; Dose-Response Relationship, Drug; Healthy Volunteers; Humans; Infant, Newborn; Meropenem; Microbial Sensitivity Tests; Piperacillin, Tazobactam Drug Combination; beta-Lactamase Inhibitors
PubMed: 30176176
DOI: 10.1111/bcp.13756 -
Frontiers in Pharmacology 2023Cholera is a challenging ancient disease caused by (. Antibiotics that prevent cell wall synthesis are among the first known antibiotic groups. Due to its high... (Review)
Review
Cholera is a challenging ancient disease caused by (. Antibiotics that prevent cell wall synthesis are among the first known antibiotic groups. Due to its high consumption, has developed resistance to the majority of antibiotics in this class. Resistance to recommended antibiotics for the treatment of has also increased. In light of the decrease in consumption of certain antibiotics in this group that inhibit cell wall synthesis and the implementation of new antibiotics, it is necessary to determine the antibiotic resistance pattern of and to employ the most effective treatment antibiotic. An comprehensive systematic search for relevant articles was conducted in PubMed, Web of Science, Scopus, and EMBASE through October 2020. Stata version 17.1 utilized the Metaprop package to execute a Freeman-Tukey double arcsine transformation in order to estimate weighted pooled proportions. A total of 131 articles were included in the meta-analysis. Ampicillin was the most investigated antibiotic. The prevalence of antibiotic resistance was in order aztreonam (0%), cefepime (0%), imipenem (0%), meropenem (3%), fosfomycin (4%), ceftazidime (5%), cephalothin (7%), augmentin (8%), cefalexin (8%), ceftriaxone (9%), cefuroxime (9%), cefotaxime (15%), cefixime (37%), amoxicillin (42%), penicillin (44%), ampicillin (48%), cefoxitin (50%), cefamandole (56%), polymyxin-B (77%), carbenicillin (95%) respectively. Aztreonam, cefepime, and imipenem are the most efficient cell wall synthesis inhibitors. There has been an increase in resistance to antibiotics such as cephalothin, ceftriaxone, amoxicillin, and meropenem. Over the years, resistance to penicillin, ceftazidime, and cefotaxime, has decreased.
PubMed: 37021056
DOI: 10.3389/fphar.2023.1027277 -
Obstetrics and Gynecology Apr 2015To suggest options for oral and intramuscular antibiotic treatment of early postpartum endometritis in low-resource community settings where intravenous antibiotics are... (Review)
Review
OBJECTIVE
To suggest options for oral and intramuscular antibiotic treatment of early postpartum endometritis in low-resource community settings where intravenous antibiotics are unavailable.
DATA SOURCES
Studies were identified through MEDLINE from inception through December 2014. Search terms included [("anti-bacterial agents [MeSH]" or "anti-infective agents [MeSH]") and ("endometritis [MeSH]" or "puerperal infection [MeSH]")]. A second search using the terms [("endometritis or endomyometritis or puerperal infection) and ("antibiotics or antimicrobials or anti-bacterial agents or anti-infective agents)"] was also used. Additionally, all references from selected articles were reviewed, a hand-search of a subject matter expert library was conducted, and a search of ClinicalTrials.gov was performed.
METHODS OF STUDY SELECTION
We conducted a systematic review of the literature in two phases. Phase I provides a summary of clinical cure data from prospective studies of oral and intramuscular antimicrobial regimens as well as summarizes evidence from trials of intravenous antimicrobials. Phase II is a quantitative analysis of pathogens from intrauterine postpartum endometritis samples. Based on these results, and with consideration of existing recommendations for antibiotic use during breastfeeding, we suggest oral and intramuscular antimicrobial options for the treatment of early postpartum endometritis after vaginal delivery in low-resource settings.
TABULATION, INTEGRATION, AND RESULTS
Reports involving oral or intramuscular antimicrobial treatment of postpartum endometritis are rare and of generally poor quality. Antimicrobial trials of postpartum endometritis treatment and intrauterine microbiology studies suggest five antimicrobial regimens may be effective: oral clindamycin plus intramuscular gentamicin, oral amoxicillin-clavulanate, intramuscular cefotetan, intramuscular meropenem or imipenem-cilastatin, and oral amoxicillin in combination with oral metronidazole.
CONCLUSION
This review provides suggestions for oral, intramuscular, and combined antimicrobial regimens that may warrant additional study. Experimental trials should consider clinical effectiveness, safety and side effects profiles, and feasibility of community-based treatment.
Topics: Administration, Oral; Anti-Bacterial Agents; Developing Countries; Drug Therapy, Combination; Endometritis; Female; Humans; Injections, Intramuscular; Puerperal Infection
PubMed: 25751198
DOI: 10.1097/AOG.0000000000000732 -
Journal of Critical Care Aug 2019To summarize selected original critical care pharmacotherapy research published in 2018.
PURPOSE
To summarize selected original critical care pharmacotherapy research published in 2018.
MATERIALS AND METHODS
The Critical Care Pharmacotherapy Literature Update (CCPLU) Group screened 32 journals monthly for impactful articles and reviewed 100 articles during 2018. Grading of Recommendations, Assessment, Development and Evaluations (GRADE) criteria were applied to all relevant articles included in the monthly CCPLU. Articles with a 1A grade, including one clinical practice guideline, two meta-analyses, and ten original research trials, were selected for review.
RESULTS
Clinical practice guidelines for the management of pain, agitation, delirium, immobility, and sleep disruption were summarized. Meta-analyses on the role of corticosteroids in sepsis and early enteral nutrition were reviewed. Included original research trials evaluated corticosteroids in sepsis, enteral and parenteral nutrition in patients with shock, tenecteplase in acute ischemic stroke, antipsychotics for the treatment of intensive care unit delirium, vasopressors in cardiogenic shock, balanced crystalloids and saline for fluid administration, and meropenem and piperacillin-tazobactam for treatment of resistant Gram-negative organisms.
CONCLUSION
This clinical review and expert commentary of impactful critical care pharmacotherapy publications in 2018 provides perspectives and insights for the critical care practitioner.
Topics: Brain Ischemia; Critical Care; Delirium; Drug Therapy; Enteral Nutrition; Fluid Therapy; Humans; Intensive Care Units; Meta-Analysis as Topic; Pain; Periodicals as Topic; Practice Guidelines as Topic; Sepsis; Stroke
PubMed: 31100708
DOI: 10.1016/j.jcrc.2019.04.029 -
Infection, Genetics and Evolution :... Sep 2019Carbapenem-resistant Acinetobacter baumannii (CRAB) has been considered as an important pathogen causing hospital-acquired infections thought the world. Class A... (Meta-Analysis)
Meta-Analysis
Carbapenem-resistant Acinetobacter baumannii (CRAB) has been considered as an important pathogen causing hospital-acquired infections thought the world. Class A carbapenemases, class B (metallo-β- lactamases; MBLs) and class D (oxacillinases) are the most important enzymes that are able to hydrolyze carbapenems. There are various reports on the CRAB harboring carbapenemase genes in Iran; but, a comprehensive analysis on the prevalence of CRAB and carbapenemases has not yet been performed. We systematically searched different electronic databases including: Medline (via PubMed), Embase, Web of Science, and the Iranian Database from January 2000 to December 2018. Meta-analysis was performed using the Comprehensive Meta-Analysis (Biostat V2.2) software. Our analysis indicated that the pooled prevalence of resistance to imipenem and meropenem was 81.1% (95% CI 76.6-84.9) and 83.6% (95% CI 78.7-87.5), respectively. Among genes encoding class D carbapenemases OXA-23, OXA-24, and OXA-58 were found with the prevalence 73.7% (95% CI 66.5-79.8), 21.9% (95% CI 15.2-30.4), and 6.2% (95% CI 3.1-11.9), respectively. Among genes encoding class B carbapenemases, IMP, VIM and NDM genes were found with the prevalence 16.7% (95% CI 5-43.2) and 12.3% (95% CI 5.3-25.8) and 2.7% (95% CI 1.3-5.5), respectively. Genes encoding class A carbapenemases were not observed. The results of this study indicated that imipenem and meropenem resistance rates are high in Iran and these drugs are not recommended for A. baumannii infections. Thereby, antimicrobial stewardship and improvements in infection control practices are recommended strategies for prevention and spread of these strains.
Topics: Acinetobacter Infections; Acinetobacter baumannii; Anti-Bacterial Agents; Bacterial Proteins; Carbapenems; Drug Resistance, Bacterial; Humans; beta-Lactamases
PubMed: 31176030
DOI: 10.1016/j.meegid.2019.06.008 -
American Journal of Infection Control Jul 2024Novel β-lactams have in vitro activity against Pseudomonas aeruginosa (PA), but their clinical performances and the selection criteria for practical use are still not... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Novel β-lactams have in vitro activity against Pseudomonas aeruginosa (PA), but their clinical performances and the selection criteria for practical use are still not clear. We aimed to evaluate the efficacy of novel β-lactams for PA infection in various sites and to compare the efficacy of each agent.
METHODS
We searched PubMed, Embase, Cochrane Library, and Web of Science for randomized controlled trials that used novel β-lactams to treat PA infection. The primary outcomes were clinical cure and favorable microbiological response. Subgroup analyses were performed based on drug type, drug resistance of pathogens, and site of infection. Network meta-analysis was carried out within a Bayesian framework.
RESULTS
In all studies combined (16 randomized controlled trials), novel β-lactams indicated comparable performance to other treatment regimens in both outcome measures (relative risk = 1.04; 95% confidence interval 0.94-1.15; P = .43) (relative risk = 0.97; 95% confidence interval 0.81-1.17; P = .76). Subgroup analyses showed that the efficacy of ceftolozane-tazobactam (TOL-TAZ), ceftazidime-avibactam (CAZ-AVI), imipenem-cilastatin-relebactam, and cefiderocol had no apparent differences compared to control groups among different infection sites, drug types and drug resistance of PA. In network meta-analysis, the results showed no statistically significant differences between TOL-TAZ, CAZ-AVI, and cefiderocol.
CONCLUSIONS
TOL-TAZ, CAZ-AVI, imipenem-cilastatin-relebactam, and cefiderocol are not inferior to other agents in the treatment of PA infection. Their efficacy is also comparable between TOL-TAZ, CAZ-AVI, and cefiderocol.
Topics: Humans; Pseudomonas Infections; beta-Lactams; Pseudomonas aeruginosa; Anti-Bacterial Agents; Treatment Outcome; Randomized Controlled Trials as Topic; Drug Combinations; Azabicyclo Compounds; Tazobactam; Ceftazidime; Cephalosporins
PubMed: 38428591
DOI: 10.1016/j.ajic.2024.02.016 -
Nihon Shokakibyo Gakkai Zasshi = the... 2023Metronidazole (MNZ) is a widely used drug for protozoan and anaerobic infections. The continuous use of MNZ causes various neurological symptoms, such as cerebellar...
Metronidazole (MNZ) is a widely used drug for protozoan and anaerobic infections. The continuous use of MNZ causes various neurological symptoms, such as cerebellar ataxia, visual disturbance, vestibulocochlear symptoms, gait disturbance, dysarthria, and epileptic seizures of unknown cause, named MNZ-induced encephalopathy (MIE), in rare cases. MIE is a reversible disease that often improves within a few days of MNZ discontinuation, but irreversible neurological symptoms rarely remain. Herein, we report a case of MIE that developed during MNZ administration for a liver abscess, causing prolonged unconsciousness and death even after drug discontinuation. An 85-year-old female patient complained of fever, elevated liver enzymes, and a multifocal abscess in the right hepatic lobe, as seen on computed tomography. Percutaneous transhepatic abscess drainage and antibiotic therapy were initiated. The causative agent of the liver abscess could not be identified, thus meropenem was started, which demonstrated no inflammation improvement, thus oral MNZ was added. The inflammation recurred when MNZ was discontinued, and the patient continued taking MNZ. Vomiting, upper limb tremors, consciousness disturbance, and convulsions appeared on day 46 (total dose of MNZ 73.5mg), and the patient was hospitalized. T2-weighted, diffusion-weighted, and FLAIR head magnetic resonance imaging (MRI) revealed symmetrical abnormal high-signal areas in the cerebellar dentate nucleus, corpus callosum, cerebral white matter, and periventricular areas. MIE was diagnosed based on the patient's course and MRI images, and MNZ was discontinued. The patient continued to suffer from impaired consciousness and convulsions after MNZ discontinuation and died due to aspiration pneumonia. Suggestively, MIE development is related to long-term MNZ administration, poor nutrition, liver disease, underlying diseases (such as advanced cancer), and serious complications. A systematic review of MIE cases revealed that 4.8-5.9% of the patients demonstrated little improvement of symptoms after MNZ discontinuation, and some deaths were reported. Patients with poor prognosis were often suffering from impaired consciousness and convulsions. Furthermore, impaired consciousness was the most common residual symptom. Abnormal signals in characteristic areas, such as the dentate nucleus cerebri and corpus callosum, on head MRI are useful for MIE diagnosis, especially in patients with abnormal findings in the cerebral white matter, which is associated with a poor prognosis. We should pay close attention to the onset of MIE when MNZ is administered.
Topics: Female; Humans; Aged, 80 and over; Metronidazole; Brain Diseases; Anti-Bacterial Agents; Seizures; Liver Abscess
PubMed: 37821376
DOI: 10.11405/nisshoshi.120.858 -
Acta Anaesthesiologica Scandinavica Aug 2023Piperacillin/tazobactam or meropenem are often used to treat patients with severe bacterial infections. We aimed to compare the desirable and undesirable effects of... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Piperacillin/tazobactam or meropenem are often used to treat patients with severe bacterial infections. We aimed to compare the desirable and undesirable effects of empirical and/or definitive piperacillin/tazobactam versus carbapenems in patients with severe bacterial infections.
METHODS
We searched PubMed, Embase, CENTRAL, Epistemonikos, and trial registers for randomised clinical trials of empirical and/or definitive piperacillin/tazobactam versus carbapenems in adult patients with severe bacterial infection (i.e., any bacterial infection requiring hospitalisation). The primary outcome was all-cause short-term mortality within 90 days. Secondary outcomes were all-cause long-term mortality, adverse events, quality of life, days alive without or duration of life support, secondary infections, selection of fungi or resistant bacteria, and days alive and out of hospital or hospital length of stay. We calculated relative risks (RRs) using random effects and fixed effect meta-analyses along with trial sequential analyses.
RESULTS
We included 31 trials (n = 8790 patients) with overall high risk of bias. The RR for all-cause short-term mortality was 1.16 (95% confidence interval [CI]: 0.94-1.43, low certainty evidence), for adverse events 1.00 (98% CI: 0.96-1.04, moderate certainty evidence), for secondary infections 1.13 (98% CI: 0.76-1.68, very low certainty evidence), and for selection of fungi or resistant bacteria 1.61 (98% CI: 0.89-2.89, very low certainty evidence). There were no or limited data for the remaining outcomes.
CONCLUSIONS
Based on very low or low certainty evidence, piperacillin/tazobactam may be associated with less favourable outcomes in patients with severe bacterial infections as compared with carbapenems, but the information size for a robust conclusion has not been reached.
Topics: Adult; Humans; Carbapenems; Coinfection; Quality of Life; Piperacillin, Tazobactam Drug Combination; Bacterial Infections; Bacteria
PubMed: 36919866
DOI: 10.1111/aas.14239