Indications For Antibiotic Use Research Articles

Effect of different antibiotic use strategies on infection in neonates with premature rupture of membranes and high-risk factors for neonatal infection

To study the effect of different antibiotic use strategies on infection in neonates with premature rupture of membranes and the high-risk factors for neonatal infection. A retrospective analysis was performed for the clinical data of 223 neonates with premature rupture of membranes. According to the antibiotic use strategies, they were classified into two groups: study group (n=95) and control group (n=128). The neonates in the study group were given antibiotics based on risk assessment and infection screening, and those in the control group were given antibiotics based on risk assessment alone after admission. General status and prognosis were compared between the two groups. According to the presence or absence of infection, the neonates were classified into two groups: infection group (n=32) and non-infection group (n=191). The clinical data were compared between the two groups. A logistic regression model was used to investigate the high-risk factors for infection in neonates with premature rupture of membranes. Compared with the control group, the study group had a significantly longer time of premature rupture of membranes, a significantly higher rate of cesarean section, and a significantly lower antibiotic use rate at admission and a significantly lower total antibiotic use rate (P<0.05). The study group also had a significantly higher incidence rate of infection and a significantly lower incidence rate of sepsis (P<0.05). There were no significant differences in the incidence rates of other complications between the two groups (P>0.05). Compared with the non-infection group, the infection group had a significantly lower gestational age, a significantly longer time of premature rupture of membranes, a significantly higher rate of cesarean section, and significantly higher levels of C-reactive protein (CRP) and procalcitonin on admission and during reexamination (P<0.05), with fever as the most common symptom. The logistic regression analysis showed that preterm birth and cesarean section were high-risk factors for infection in neonates with premature rupture of membranes (P<0.05). Strict adherence to the indications for antibiotic use in neonates with premature rupture of membranes does not increase the incidence rate of complications. Neonates with premature rupture of membranes, especially preterm infants and infants delivered by cesarean section, should be closely observed for the change in disease conditions, and infection indices including CRP should be reexamined in case of fever and antibiotics should be used to prevent serious infection.

Antimicrobial point prevalence surveys in two Ghanaian hospitals: opportunities for antimicrobial stewardship.

BackgroundImproved knowledge regarding antimicrobial use in Ghana is needed to reduce antimicrobial resistance (AMR). This includes point prevalence studies (PPSs) in hospitals. Objectives were to: (i) provide baseline data in two hospitals [Keta Municipal Hospital (KMH) and Ghana Police Hospital (GPH)] and identify priorities for improvement; (ii) assess the feasibility of conducting PPSs; and (iii) compare results with other studies.MethodsStandard PPS design using the Global PPS paper forms, subsequently transferred to their template. Training undertaken by the Scottish team. Quality indicators included: rationale for use; stop/review dates; and guideline compliance.ResultsPrevalence of antibiotic use was 65.0% in GPH and 82.0% in KMH. Penicillins and other β-lactam antibiotics were the most frequently prescribed in both hospitals, with third-generation cephalosporins mainly used in GPH. Antibiotic treatment was mainly empirical and commonly administered intravenously, duration was generally short with timely oral switching and infections were mainly community acquired. Encouragingly, there was good documentation of the indications for antibiotic use in both hospitals and 50.0%–66.7% guideline compliance (although for many indications no guideline existed). In addition, almost all prescribed antibiotics had stop dates and there were no missed doses. The duration of use for surgical prophylaxis was generally more than 1 day (69.0% in GPH and 77.0% in KMH).ConclusionsThese two hospitals were the first in Ghana to use the Global PPS system. We found the PPS was feasible, relatively rapid and achieved with limited training. Targets for improvement identified included reduction of broad-spectrum antibiotics and duration of treatment.

Antibiotic use among hospitalized patients in northern Nigeria: a multicenter point-prevalence survey

BackgroundThe evaluation of antibiotic use among hospitalized patients is a primary step required to design antibiotic stewardship intervention. There is paucity of data describing antibiotic use in hospitals across Northern Nigeria. This study evaluates the prevalence and indications for antibiotic use among inpatients in three acute care hospitals.MethodsA point-prevalence survey was conducted among patients in the wards before or at 8.00 a.m. on the day of the survey, using the point-prevalence survey of healthcare-associated infections and antimicrobial use in European acute care hospitals protocol. The survey was conducted between April and May 2019. The medical records of the patients were reviewed by a clinical pharmacist with the support of physicians and nurses.ResultsOverall, 80.1% (257/321) of the patients used at least one antibiotic on the day of the survey. The prevalence of antibiotic use ranged from 72.9% in obstetrics and gynecology to 94.6% in pediatric medical specialty. Community acquired infections (38.7%) and surgical antibiotic prophylaxis (22.5%) were the most common indications. Surgical antibiotic prophylaxis was used or scheduled to be used for more than a day in all the cases. Metronidazole (30.5%), ciprofloxacin (17.1%), ceftriaxone (16.8%), amoxicillin-clavulanate (12.5%) and gentamicin (11.8%) were the most commonly prescribed antibiotics. Overall, broad spectrum antibiotics represented one-third of all the prescriptions. The change of initial antibiotic prescription was reported in one-third of the patients and the reasons include a switch to oral antibiotic (28.5%), escalation (4.5%) and de-escalation (3.6%). Of the 257 patients with an antibiotic prescription, 6.2% had redundant antibiotic combinations.ConclusionThe prevalence of antibiotic use was high with one in three prescriptions having a broad spectrum antibiotic. Prolonged use of surgical antibiotic prophylaxis and redundant antibiotic combination were observed. Antimicrobial stewardship interventions are recommended in order to reduce the use of antibiotics and promote appropriate antibiotics prescribing.

A double-blind placebo-controlled trial of azithromycin to reduce mortality and improve growth in high-risk young children with non-bloody diarrhoea in low resource settings: the Antibiotics for Children with Diarrhoea (ABCD) trial protocol

BackgroundAcute diarrhoea is a common cause of illness and death among children in low- to middle-income settings. World Health Organization guidelines for the clinical management of acute watery diarrhoea in children focus on oral rehydration, supplemental zinc and feeding advice. Routine use of antibiotics is not recommended except when diarrhoea is bloody or cholera is suspected. Young children who are undernourished or have a dehydrating diarrhoea are more susceptible to death at 90 days after onset of diarrhoea. Given the mortality risk associated with diarrhoea in children with malnutrition or dehydrating diarrhoea, expanding the use of antibiotics for this subset of children could be an important intervention to reduce diarrhoea-associated mortality and morbidity. We designed the Antibiotics for Childhood Diarrhoea (ABCD) trial to test this intervention.MethodsABCD is a double-blind, randomised trial recruiting 11,500 children aged 2–23 months presenting with acute non-bloody diarrhoea who are dehydrated and/or undernourished (i.e. have a high risk for mortality). Enrolled children in Bangladesh, India, Kenya, Malawi, Mali, Pakistan and Tanzania are randomised (1:1) to oral azithromycin 10 mg/kg or placebo once daily for 3 days and followed-up for 180 days. Primary efficacy endpoints are all-cause mortality during the 180 days post-enrolment and change in linear growth 90 days post-enrolment.DiscussionExpanding the treatment of acute watery diarrhoea in high-risk children to include an antibiotic may offer an opportunity to reduce deaths. These benefits may result from direct antimicrobial effects on pathogens or other incompletely understood mechanisms including improved nutrition, alterations in immune responsiveness or improved enteric function. The expansion of indications for antibiotic use raises concerns about the emergence of antimicrobial resistance both within treated children and the communities in which they live. ABCD will monitor antimicrobial resistance. The ABCD trial has important policy implications. If the trial shows significant benefits of azithromycin use, this may provide evidence to support reconsideration of antibiotic indications in the present World Health Organization diarrhoea management guidelines. Conversely, if there is no evidence of benefit, these results will support the current avoidance of antibiotics except in dysentery or cholera, thereby avoiding inappropriate use of antibiotics and reaffirming the current guidelines.Trial registrationClinicaltrials.gov, NCT03130114. Registered on April 26 2017.

Knowledge and practices regarding antibiotics use: Findings from a cross-sectional survey among Italian adults.

Background and objectivesThis study aimed to assess the knowledge on antibiotics and antimicrobial resistance (AMR) and the antibiotic use among the general public in Southern Italy and to analyze whether sociodemographic characteristics could be associated with poor knowledge and improper practices.MethodologyFrom March to November 2019, a face-to-face interview was conducted with adult subjects attending the waiting room of 27 randomly selected general practitioners (GPs) in Southern Italy. The questionnaire covered sociodemographic characteristics, knowledge on antibiotics and AMR and practices regarding the consumption of and self-medication with antibiotics.ResultsThe response rate was 89.7%. In the sample, 29.2% thought that antibiotics are effective for viral infections, and 49.5% correctly recognized the definition of AMR. Predictors of good knowledge about antibiotics and AMR were female gender and a higher education level. Almost half of the respondents had used antibiotics in the previous year and 23.6% took antibiotics to treat a common cold and/or fever. Among participants, 25.5% reported to have bought antibiotics without a prescription, and 30.6% were classified as antibiotic self-medication users. Use of antibiotics in the previous 12 months and having taken an antibiotic after a phone consultation with the GP were positively associated with both antibiotic use for a common cold and/or fever and self-medication with antibiotics.Conclusions and implicationsThe findings of this study highlighted a considerable antibiotic consumption in the adult population of Southern Italy together with misconceptions regarding the correct indication for antibiotic use that could foster indiscriminate antibiotic use.Lay SummaryThe findings of this study highlighted a considerable antibiotic consumption in the adult Italian population together with misconceptions regarding the correct indication for antibiotic use that could foster indiscriminate antibiotic use. Almost a quarter of the respondents took antibiotics to treat a common cold and/or fever and reported to have bought antibiotics without a prescription.

Use of antibiotics in Swiss piglet production and fattening farms

In 164 randomly selected Swiss piglet production farms and 101 fattening farms, the indication for antibiotic use in 2012/2013 was recorded and an animal treatment index (TBI) was calculated for each age group. Sows were treated on average 0.9 days per year mainly due to mastitis-metritis-agalactia (MMA). Suckling piglets were treated on average 0.5 days per production cycle, mainly due to diarrhea and polyarthritis. Weaned piglets were treated during 4.4 days, especially due to diarrhea, polyarthritis and wasting. In fattening pigs, treatments were mainly due to diarrhea and HPS-suspicion, and lasted on average 4.8 days. In sows, antibiotics were used prophylactically on 22.6% of the treatment days, in suckling piglets on 50.5%, in weaners on 86.1% and in fattening pigs on 79.0% of the treatment days. A prophylactic oral antibiotic group therapy did not have a significant positive effect on daily weight gain of fattening pigs, nor was it able to reduce the number of individual or group therapies. In farms with prophylactic oral group therapy, the mortality rate during the first two fattening weeks even tended to be higher (p=0.06) than in farms without oral group therapy. Highest priority critically important antibiotics were used in 22.6% of all treatment days in sows, in 37.5% in suckling piglets, in 17.2% in weaned piglets and in 27.3% in fattening pigs. In many farms, antibiotics were not prescribed and used according to the rules of "prudent use".

A Statewide Program to Improve Management of Suspected Urinary Tract Infection in Long-Term Care.

Suspected urinary tract infection (UTI) is the most common indication for antibiotic use in long-term care (LTC). Due to the high prevalence of asymptomatic bacteriuria, for which antibiotics are not warranted, these antibiotics are frequently unnecessary. We implemented a collaborative quality improvement program to improve the management of suspected UTI in LTC residents by increasing awareness of current guidelines, with a focus on decreasing treatment in the absence of symptoms. Two separate collaboratives included workshops, webinars, and coaching calls. A total of 31 facilities participated in the first collaborative, with 17 submitting sufficient data for analysis and 34 in the second, with data analyzed from 25. Facilities reported monthly numbers of urine cultures, UTI diagnoses, Clostridioides difficile infections (CDIs), and resident days. When comparing the baseline period to the first collaborative period, the intercollaborative period to the second collaborative period, and the first collaborative period to the second, the incident rate ratios (95% confidence intervals) were 0.74 (0.68-0.81), 0.83 (0.73-0.94), and 0.63 (0.57-0.69), respectively, for urine culturing rate; 0.73 (0.64-0.83), 0.86 (0.70-1.05), and 0.60 (0.51-0.69), respectively, for UTI diagnosis rate; and 0.56 (0.40-0.82), 1.61 (0.71-4.14), and 0.45 (0.27-0.74), respectively, for CDI rate. The program we implemented was associated with reductions in urine cultures, UTI diagnosis, and CDI; and it suggests that this type of intervention can promote appropriate management of UTI in the LTC setting. J Am Geriatr Soc 68:62-69, 2019.

Influences on surgical antimicrobial prophylaxis decision making by surgical craft groups, anaesthetists, pharmacists and nurses in public and private hospitals.

Surgical antimicrobial prophylaxis (SAP) is a leading indication for antibiotic use in the hospital setting, with demonstrated high rates of inappropriateness. Decision-making for SAP is complex and multifactorial. A greater understanding of these factors is needed to inform the design of targeted antimicrobial stewardship interventions and strategies to support the optimization of SAP and its impacts on patient care. A qualitative case study exploring the phenomenon of SAP decision-making. Focus groups were conducted with surgeons, anaesthetists, theatre nurses and pharmacists across one private and two public hospitals in Australia. Thematic analysis was guided by the Theoretical Domains Framework (TDF) and the Capabilities, Opportunities, Motivators-Behaviour (COM-B) model. Fourteen focus groups and one paired interview were completed. Ten of the fourteen TDF domains were identified as relevant. Thematic analysis revealed six significant themes mapped to the COM-B model, and subthemes mapped to the relevant TDF domains in a combined framework. Key themes identified were: 1) Low priority for surgical antimicrobial prophylaxis prescribing skills; 2) Prescriber autonomy takes precedence over guideline compliance; 3) Social codes of prescribing reinforce established practices; 4) Need for improved communication, documentation and collection of data for action; 5) Fears and perceptions of risk hinder appropriate SAP prescribing; and 6) Lack of clarity regarding roles and accountability. SAP prescribing is a complex process that involves multiple professions across the pre-, intra- and post-operative surgical settings. The utilisation of behaviour change frameworks to identify barriers and enablers to optimal SAP prescribing supports future development of theory-informed antimicrobial stewardship interventions. Interventions should aim to increase surgeon engagement, enhance the prioritisation of and accountability for SAP, and address the underlying social factors involved in SAP decision-making, such as professional hierarchy and varied perceptions or risks and fears.

Appropriateness of Surgical Antimicrobial Prophylaxis Practices in Australia

Surgical antimicrobial prophylaxis (SAP) is a common indication for antibiotic use in hospitals and is associated with high rates of inappropriateness. To describe the SAP prescribing practices and assess hospital, surgical, and patient factors associated with appropriate SAP prescribing. Multicenter, national, quality improvement study with retrospective analysis of data collected from Australian hospitals via Surgical National Antimicrobial Prescribing Survey audits from January 1, 2016, to June 30, 2018. Data were analyzed using multivariable logistic regression. Crude estimates of appropriateness were adjusted for factors included in the model by calculating estimated marginal means and presented as adjusted-appropriateness with 95% confidence intervals. Adjusted appropriateness and factors associated with inappropriate prescriptions. A total of 9351 surgical episodes and 15 395 prescriptions (10 740 procedural and 4655 postprocedural) were analyzed. Crude appropriateness of total prescriptions was 48.7% (7492 prescriptions). The adjusted appropriateness of each surgical procedure group was low for procedural SAP, ranging from 33.7% (95% CI, 26.3%-41.2%) for dentoalveolar surgery to 68.9% (95% CI, 63.2%-74.5%) for neurosurgery. The adjusted appropriateness of postprocedural prescriptions was also low, ranging from 21.5% (95% CI, 13.4%-29.7%) for breast surgery to 58.7% (95% CI, 47.9%-69.4%) for ophthalmological procedures. The most common reason for inappropriate procedural SAP was incorrect timing (44.9%), while duration greater than 24 hours was the most common reason for inappropriate postprocedural SAP (54.3%). High rates of inappropriate procedural and postprocedural antimicrobial use were demonstrated across all surgical specialties. Reasons for inappropriateness, such as timing and duration, varied according to the type of SAP and surgical specialty. These findings highlight the need for improvement in SAP prescribing and suggest potential targeted areas for action.

1007. A novel approach to evaluate antibiotic utilization across the spectrum of inpatient and ambulatory care and implications for prioritization of antibiotic stewardship efforts

BackgroundAntibiotic overuse remains a significant problem in inpatient and outpatient settings. The objective of this study was to develop a methodology to evaluate antibiotic use across inpatient and ambulatory care sites in an integrated healthcare system in order to prioritize antibiotic stewardship efforts.MethodsWe conducted an epidemiologic study of antibiotic use across an integrated healthcare system on 12 randomly-selected days between October 1, 2017 and September 30, 2018. Inpatients and perioperative patients were recorded as having received an antibiotic if they were administered ≥1 dose of a systemic antibacterial agent. Outpatients were recorded as having received an antibiotic if they were prescribed ≥1 systemic antibacterial agent.ResultsOn the study days, 10.9% (95% CI 10.6–11.3%) of patients received an antibiotic. Of all antibiotics administered or prescribed, 54.1% were from ambulatory care (95% CI 52.6–55.7%), 38.0% were from the hospital, (95% CI 36.6–39.5%), and 7.8% (95% CI 7.1–7.8%) were perioperative. The emergency department/urgent care centers, adult outpatient clinics, and adult noncritical care inpatient wards accounted for 26.4% (95% CI: 25.0–27.7%), 23.8% (95% CI: 22.6–25.2), and 23.9% (95% CI 22.7–25.3) of antibiotic use, respectively. Only 9.2% (95% CI: 8.3–10.1%) of all antibiotics were administered in critical care units. Antibiotics with a broad spectrum of Gram-negative activity accounted for 30.4% (95% CI: 29.0–31.9%) of all antibiotics prescribed. Infections of the respiratory tract were the leading indication for antibiotic use.ConclusionIn an integrated healthcare system, nearly three-quarters of antibiotic use occurred in the emergency department/urgent care centers, adult outpatient clinics, and adult noncritical care inpatient wards. Antibiotics with a broad spectrum of Gram-negative activity accounted for a large portion of antibiotic use. Analysis of antibiotic utilization across the spectrum of inpatient and ambulatory care is useful to prioritize antibiotic stewardship efforts.Disclosures All authors: No reported disclosures.

2034. Standardized Point Prevalence Survey on Antibiotic Use to Inform Antimicrobial Stewardship Strategies in the Caribbean

BackgroundInappropriate use of antimicrobials is one of the core contributors to antimicrobial resistance. While hospitals create high selection pressures on bacteria due to the high quantity and broader spectrum of antibiotics used, information on antimicrobial use at the patient level in the Caribbean is sparse. In response, PAHO implemented a standardized WHO methodology to engage national leaderships, build local capacity, and facilitate the use of data to inform antimicrobial stewardship programs (ASP) in the Caribbean.MethodsPoint prevalence surveys (PPS) were performed in four acute care hospitals in Barbados, Guyana and Saint Lucia between June and July 2018. Medical records of all inpatients were reviewed to collect information on antibiotic use, indications and use of laboratory services (Figure 1). A hospital questionnaire was used to assess hospital infrastructure, policy and practices, and monitoring and feedback systems (Figure 2). Training on PPS methods and electronic data collection tool in REDCap™ were provided to build local capacity and identify potential ASP leaderships. A standardized data validation, analysis and reporting system was built in R to streamline the process. Results and recommendations were disseminated to national authorities and stakeholders to support hospital and national decision-making and training for healthcare providers (Figure 3).ResultsA total of 60 physicians, nurses, pharmacists, laboratory technicians, and infection control specialists were trained and participated in the PPS. The survey collected records of 816 patients in which 442 (54%) were females and 374 (46%) were males. In total, 356 (44%) patients received 551 antibiotics. Overall, 300 (75%) of 398 indications for antibiotic use were treatment and 72 (18%) were prophylaxis. A higher use of parenteral antibiotics (79%) was observed compared with oral antibiotics (21%). Antibiotic prescribing patterns differed across hospitals. The most commonly used antibiotics were metronidazole (12%) and amoxicillin/clavulanate (11%).ConclusionThe PPS method provided a feasible and effective way to collect baseline data and identify target areas for interventions. Engaging national leaderships and building local capacity offered a sustainable way in optimizing antimicrobial use in resource-limited settings. Disclosures All authors: No reported disclosures.

Antibiotic Use Without Indication During Delivery Hospitalizations in the United States.

To analyze trends in unindicated antibiotic use during vaginal delivery hospitalization. This study used an administrative database to analyze antibiotic use during delivery hospitalizations from January 2006 to March 2015. Women were classified by mode of delivery and whether they had an evidence-based indication for antibiotics. Indications for antibiotics included preterm prelabor rupture of membranes (PROM), cesarean delivery, group B streptococcus (GBS) colonization, chorioamnionitis, endometritis, urinary tract infections, and other infections. The Cochran-Armitage test was used to assess trends of antibiotic administration. Unadjusted and adjusted analyses for antibiotic receipt including demographic, hospital, and obstetric and medical factors were performed with unadjusted and adjusted risk ratios (RRs) with 95% CIs as measures of association. A total of 5,536,756 delivery hospitalizations, including 2,872,286 vaginal deliveries without an indication for antibiotics, were analyzed. The most common indication for antibiotics was cesarean delivery (33.6% of the entire cohort), followed by GBS colonization (15.8%), chorioamnionitis (1.7%), preterm PROM (1.6%), endometritis (1.2%), urinary tract infections (0.6%), and other infections (total less than 0.5%). The proportion of women receiving unindicated antibiotics decreased 44.4%, from 38.1% in 2006 to 21.2% in 2015. Adjusted risk for receipt of unindicated antibiotics was lower in 2015 vs 2006 (adjusted RR 0.56, 95% CI 0.55-0.57). Use of antibiotics during vaginal delivery hospitalizations without an indication for antibiotic use declined significantly based on an analysis of a large administrative data set.

Study to assess quality of antimicrobial use by point prevalence survey at a tertiary care centre

Study to assess quality of antimicrobial use by point prevalence survey at a tertiary care centre - IJMR- Print ISSN No: - 2394-546X Online ISSN No:- 2394-5478 Article DOI No:- 10.18231/j.ijmr.2019.054, Indian Journal of Microbiology Research-Indian J Microbiol Res

Antimicrobial use-related problems and their costs in surgery ward of Jimma University Medical Center: Prospective observational study.

IntroductionAntibiotics are among the most commonly misused of all drugs, which results in antibiotic resistance and waste of resources and it has not been studied in Ethiopia. Therefore, this study was carried out to assess antibiotic use–related problems and their costs among patients hospitalized at the surgical ward of Jimma University Medical Center.MethodsHospital-based prospective observational study was used to assess the prevalence, cost, and determinants of antibiotic use–related problems; multiple stepwise backward logistic regression analysis was done for a P value of < 0.25 to look for predictors of antibiotic use-related problems. Written informed consent was obtained and confidentiality was secured.ResultsAmong 300 participants, antibiotic use–related problems (ABURPs) were found in 69.3% of the study participants. The direct total cost attributed to these problems was approximated to a minimum of 2230.15 US$. Independent predictors for antibiotic use–related problems were: indication for antibiotic use like: use of antibiotic for prophylaxis; p < 0.0001, antibiotic use for both therapeutic & prophylaxis; p < 0.0001, CDC wound class I and II; p = 0.016 and; p = 0.002 respectively, overall poly-pharmacy and greater than 2 antibiotic exposure during hospital stay; p = 0.019and p = 0.006 respectively and hospital stay for ≥21 days; p = 0.007.ConclusionThe prevalence of antibiotic use-related problems was high and resulted in extra cost. Antibiotic use for prophylaxis, prophylaxis, and treatment, poly-pharmacy, greater than 2 antibiotic exposures during the hospital stay, CDC wound class I and II, and duration of hospital stay of ≥ 21 days was found to be independent predictors of antibiotic use–related problems.

A multicenter point prevalence survey of antibiotic use in Punjab, Pakistan: findings and implications

ABSTRACTObjectives: In line with the recent global action plan for antimicrobial resistance, this is the first time such a comprehensive antimicrobial point prevalence survey has been undertaken in Pakistan, the sixth most populous country.Methods: This point prevalence survey (PPS) was conducted in 13 hospitals among 7 different cities of Pakistan. The survey included all inpatients receiving an antibiotic on the day of PPS. A web-based application was used for data entry, validation, and reporting as designed by the University of Antwerp (www.global-pps.com).Results: Out of 1954 patients, 1516 (77.6%) were treated with antibiotics. The top three most reported indications for antibiotic use were prophylaxis for obstetrics or gynaecological indications (16.5%), gastrointestinal indications (12.6%) and lower respiratory tract infections (12.0%). The top three most commonly prescribed antibiotics were ceftriaxone (35.0%), metronidazole (16.0%) and ciprofloxacin (6.0%). Out of the total indications, 34.2% of antibiotics were prescribed for community-acquired infections (CAI), 5.9% for healthcare-associated infections (HAI), and 57.4% for either surgical or medical prophylaxis. Of the total use for surgical prophylaxis, 97.4% of antibiotics were given for more than one day.Conclusions: Unnecessary prophylactic antibiotic use is extremely high, and broad-spectrum prescribing is common among hospitals in Pakistan. There is an urgent need to work on the national action plan of Pakistan on antibiotic resistance to address this.

A cross-sectional study on the prevalence of antibiotic use prior to laboratory tests at two Ghanaian hospitals.

There has been a significant rise in global antibiotic use in recent years. Development of resistance has been linked to easy accessibility, lack of regulation of sale, increased tendency to self-medicate and the lack of public knowledge. The increase in antibiotic misuse, including self-medication, has not been well documented in developing countries. Antibiotic use prior to visiting health facilities has been found to be prevalent in developing countries. It has been identified by some studies to increase the likelihood of missed diagnoses and influence the outcome of bacteriological tests. This study is aimed at determining the prevalence of prior antibiotic use through a cross-sectional survey of patients undergoing laboratory tests at two health facilities in Ghana. Face-to-face questionnaires were used to interview 261 individuals chosen by random sampling of patients visiting the bacteriology laboratory of the hospitals within a two-month period. The questionnaire investigated participant demographic characteristics, knowledge about antibiotics and the nature of antibiotic use. Antibiotic property detection bioassay was performed on patient’s urine sample using a disk diffusion method to accurately determine antibiotic use within 72 hours. Culture results were used as an index to evaluate the effect of prior antibiotic use on bacteriological tests. Out of a 261 participants enrolled, 19.9% (95% CI, 14.9–24.9) acknowledged using antibiotics prior to their visit to the laboratory during the study period. On the contrary, 31.4% (95% CI, 25.7–37.5) of participants’ urine samples were positive for antimicrobial activity. Participants within the age ranges of 20–30, 31–40 and 41–50 years had significantly lower odds of urine antimicrobial activity. Participants who had urine antimicrobial activity were more likely to have no growth on their culture plates than participants who had no urine antimicrobial activity [OR 2.39(1.37–4.18), p = 0.002]. The most commonly used antibiotics were the penicillins, fluoroquinolones and metronidazole. Although, majority of the participant (54.8%) had knowledge of antibiotics, most of them had inadequate information on their proper use. The commonest indications for antibiotic use were aches and pains (30.3%), diarrhoea (43.3%) and urinary tract infections (28.0%). Prior antibiotic use was found to increase the likelihood of obtaining a culture negative result and can affect the outcome of bacteriological tests.

Antibiotic Prescribing Patterns at a Leading Referral Hospital in Kenya: A Point Prevalence Survey.

Objective:Antibiotics are essential with inappropriate use leading to antimicrobial resistance (AMR). Currently, little is known about antibiotic use among hospitals in Kenya, which is essential to tackle as part of the recent national action plan addressing rising AMR rates. Consequently, the objective was to overcome this gap in a leading referral hospital in Kenya. The findings will subsequently be used to develop quality improvement programs for this and other hospitals in Kenya.Methods:This was a point prevalence survey. Data on antibiotic use were abstracted from patient medical records by a pharmacy team.Findings:The prevalence of antibiotic prescribing was 54.7%, highest in the intensive care unit and isolation wards. Most antibiotics were for treatment (75.4%) rather than prophylaxis (29.0%). The majority of patients on surgical prophylaxis were on prolonged duration (>1 day), with only 9.6% on a single dose as per current guidelines. Penicillins (46.9%) followed by cephalosporins (44.7%) were the most prescribed antibiotic classes. The indication for antibiotic use was documented in only 37.3% of encounters. Generic prescribing was 62.5% and empiric prescribing was seen in 82.6% of encounters. Guideline compliance was 45.8%.Conclusion:Several areas for improvement were identified including addressing prolonged duration for prophylaxis, extensive prescribing of broad-spectrum antibiotics, high rates of empiric prescribing, and lack of documenting the indication for antimicrobials. Initiatives are ongoing to address this with pharmacists playing a key role.

Quantification of antibiotic use on dairy farms in Pennsylvania

Antibiotic use data are critical for drawing conclusions about the epidemiological connections between antibiotic use in farms animals, antibiotic resistance, animal health, and human health. The goal of this study was to quantitatively and qualitatively characterize antibiotic use on dairy farms in Pennsylvania, the state with second largest number of dairy farms nationally. A survey was sent to 10% of the 6,580 dairy farms registered in Pennsylvania and completed by 235 producers (response rate of 36%). Data on antibiotic use in the previous month and in the previous 6 mo were collected based on farmer self-report, using either recall or treatment records. Two metrics were used to quantify antibiotic consumption: animal-defined daily doses (ADD) and days of therapy (DOT), a metric used in human medicine for purposes of antimicrobial stewardship. Across all farms, 24,444 ADD and 19,029 DOT were reported, representing treatment incidences of 4.2 ADD/1,000 animal-days and 3.3 DOT/1,000 animal-days. These rates were generally lower than those found in other states and countries. The main indication for antibiotic use was mastitis, and first-generation cephalosporins were the most commonly used class of antibiotic for all indications, followed by penicillins and third-generation cephalosporins. Trends in use were similar for ADD and DOT, but the numbers of recorded DOT and associated treatment incidences were generally lower than the number of ADD and associated treatment incidences. Rates of treatment were significantly associated with herd size. This study is the first to quantify antibiotic use on dairy farms in Pennsylvania and the first to use the DOT metric in a dairy setting.

Antibiotic Resistance in Escherichia coli from Farm Livestock and Related Analytical Methods: A Review.

The indiscriminate use of antibiotics for the treatment of human and animal infections has led to the rise of resistance in pathogens and in commensal bacteria. In particular, farm animals may act as vectors for the dissemination of drug-resistant genes because of the intensive use of antibiotics in animal production, enabling resistance to a wide range of antimicrobial agents, including those normally used in human medicine. Escherichia coli, being a widespread commensal, is considered a good indicator of antibiotic use. Ultimately, it is emerging as a global threat, developing dramatically high levels of antibiotic resistance to multiple classes of drugs. Its prevalence in food animals is hence alarming, and more studies are needed in order to ascertain the spread dynamics between the food chain and humans. In this context, great attention should be paid to the accurate detection of resistance by conventional and molecular methods. In this review, a comprehensive list of the most widely used testing methods is also addressed.

Data on antibiotic use for detecting clusters of healthcare-associated infection caused by multidrug-resistant organisms in a hospital in China, 2014 to 2017

Detection of healthcare-associated infection (HCAI) clusters is crucial in limiting disease transmission. To investigate whether data on antibiotic use can be an alternative indicator for the identification of HCAI clusters caused by multidrug-resistant organisms (MDROs). We retrospectively analysed MDRO-related HCAIs and the 10 indicators of antibiotic use from four independent high-risk units at a tertiary hospital in China from January 2014 to January 2017. Spearman's correlation test was used to evaluate the correlations between the variables, and Shewhart chart algorithm was used to evaluate the performances of cluster identification. We identified 856 MDRO-related HCAI cases. All indicators of antibiotic use were positively correlated with the incidence of MDRO-related HCAIs (r=0.2-0.5; P<0.05), except for the antibiotics utilization rate (AUR) for single-agent use (r=-0.191; P=0.017) and the AUR of unrestricted drugs (r=-0.042, P=0.601). Shewhart chart algorithm identified 22 clusters of MDRO-related HCAI. The AUR of special-grade antibiotics, the AUR for three agents used in combination, and the number of antibiotic varieties per patient displayed the optimal predictive values for detecting these 22 MDRO-related HCAI clusters. At an acceptable specific level of 75%, these three indicators were considered as the optimal surveillance indicators for detecting MDRO-related HCAI clusters, with sensitivities from 80.00% to 95.00%, and positive predictive values from 71.05% to 77.50%. The use of data on antibiotic use is a sensitive method for identifying clusters of MDRO-related HCAIs in high-risk units and may be a useful adjunctive method for HCAI surveillance.