Antibiotic consumption study in two hospitals in Asmara from 2014 to 2018 using WHO's defined daily dose (DDD) methodology

Retrospective antimicrobial consumption surveillance at health facility level in Dodoma Region, Tanzania

INTRODUCTION

Antimicrobial resistance (AMR) is a major threat in sub-Saharan Africa (SSA), but assessments of antimicrobial consumption (AMC) are limited. This study aimed to investigate regional AMC and resistance patterns in a representative area of Tanzania and to introduce a method for determining AMC in low-resource settings.

DESIGN AND METHODS

We conducted a retrospective study using prescription data collected over 5 years (2013-2017) from multiple hospitals and selected primary health facilities in the Dodoma Region of Tanzania. The study employed the WHO's Anatomical Therapeutic Chemical (ATC) classification and Daily Defined Dose (DDD) methodology to quantify antimicrobial use. Outpatient prescription records that met our inclusion criteria were analysed, while incomplete records were excluded. Sensitivity testing for frequently prescribed antimicrobials was performed against representative gram-negative and gram-positive bacteria, with resistance expressed as minimum inhibitory concentrations and resistance percentages.

SETTING AND PARTICIPANTS

This study was conducted across several high-volume healthcare facilities in the Dodoma Region, encompassing both hospital and primary care settings. The dataset comprises outpatient prescription records from these facilities, representing a significant proportion of the regional healthcare usage. The selected facilities were chosen based on their substantial catchment populations to maximise data volume and relevance.

OUTCOME MEASURES

The primary outcome measure was the DDD per 1000 inhabitants per day (DID) for various antimicrobial classes. Secondary outcomes included the prevalence of specific drugs, such as amoxicillin and erythromycin, and their corresponding resistance profiles. Resistance data were quantitatively analysed, with particular attention given to penicillinase-sensitive penicillins and their resistance rates among gram-negative and Gram-positive bacteria.

RESULTS

Analysis revealed that single penicillins, particularly amoxicillin, dominated prescriptions, accounting for 25% to 60% of hospitals and 13% to 29% of primary health centres. Erythromycin was prescribed in 9.4% to 25.1% of cases across facilities. The overall AMC in the region ranged from 36.7 to 50.2 DID during the study period, with consumption patterns showing an initial increase of 4.3% from 2013 to 2014, a subsequent 29.0% decrease from 2014 to 2015, followed by a 34.1% increase from 2015 to 2016 and a further 37.9% increase from 2016 to 2017. Resistance testing demonstrated that penicillinase-sensitive penicillins exhibited an average resistance rate of 87.3%, with gram-negative and gram-positive bacteria showing resistance levels of 90.1% (±8%) and 83.6% (±8%), respectively, indicating a statistically significant association (p<0.05) between high consumption and elevated resistance.

CONCLUSION

Our findings reveal that AMC in the Dodoma Region is high and is linked to significant resistance against commonly used agents. This study presents a robust method for monitoring AMC and resistance in a resource-efficient manner, offering potential applicability in similar settings across SSA. The data, though representing only a fraction of total antimicrobial use, underscore the urgent need for targeted antimicrobial stewardship interventions, particularly at the primary healthcare level. Future research should further investigate demographic influences and evaluate intervention strategies to mitigate AMR effectively.

Increasing the use of the WHO AWaRe system in antibiotic surveillance and stewardship programmes in low- and middle-income countries

Introduction

Antimicrobial resistance (AMR) presents a major global health threat, driven in part by the inappropriate use of antibiotics including in low- and middle-income countries (LMICs). Improving the quality of antibiotic use is a key rationale for the development of the WHO's AWaRe (Access, Watch and Reserve) system. There is a need to review the uptake of the AWaRe system since its launch to guide future practice.

Methods

A literature search was conducted between 2017, the launch of AWaRe, and 2024. Inclusion criteria were studies that reported on antibiotic use in LMICs using the AWaRe system.

Results

Eighty-five studies were included in the review, of which 56.4% focused on antibiotic use trends, with 28.2% reporting on prescribing patterns; 51.7% of the studies included inpatients. Only 14.1% of studies reported meeting the 2024 United Nations General Assembly (UNGA) AMR recommended target of at least 70% of human antibiotic use being Access antibiotics, with a concerning trend of overuse of Watch antibiotics (68.2% of studies). Dispensing practices revealed significant dispensing of antibiotics without prescriptions especially in Pakistan and Bangladesh. Watch antibiotics were more available but also more expensive than Access antibiotics.

Conclusions

Encouragingly, many LMICs are now reporting antibiotic use via the AWaRe system, including in antimicrobial stewardship programmes (ASPs). Wide variation exists in the proportion of AWaRe antibiotics used across LMICs, with overuse of Watch antibiotics. There is an urgent need for targeted AWaRe-based ASPs in LMICs to meet recent UNGA recommendations. Improving the use, availability and affordability of Access antibiotics is essential to combat AMR.

Improving antibiotic utilization in West Africa: enhancing interventions through systematic review and evidence synthesis

BACKGROUND

Bacterial infection has been estimated to become the leading cause of death by 2050, causing 10 million deaths across the globe due to the surge in antibiotic resistance. Despite western sub-Saharan Africa being identified as one of the major hotspots of antimicrobial resistance (AMR) with the highest mortality, a comprehensive regional analysis of the magnitude and key drivers of AMR due to human antibiotic use has not been conducted.

METHOD

We carried out a systematic review by conducting a comprehensive search in various databases including PubMed and Scopus for eligible articles published in the English Language between 1 January 2000 and 14 February 2024. Five key domains of antibiotic use were focused on: (1) antibiotic consumption; (2) appropriate antibiotic prescription; (3) indicators or key drivers of antibiotic use; (4) antimicrobial stewardship (AMS) interventions; (5) knowledge, attitudes and perceptions of antibiotic consumers and providers. Data were extracted from eligible papers for all the five domains under consideration and random-effects model meta-analysis was carried out for antibiotic consumption.

RESULTS

Out of the 2613 records obtained, 64 articles which were unevenly distributed in the region were eligible for inclusion in our study. These articles reported on antibiotic consumption (5), appropriate antibiotic prescription (10), indicators or key drivers of antibiotic use (10), AMS interventions (10), and 31 studies reported on knowledge, attitudes and perceptions. Antibiotic consumption for inpatients has a pooled estimate of 620.03 defined daily dose (DDD) per 100 bed-days (confidence interval [CI] 0.00-1286.67; I2 = 100%) after accounting for outliers while prescribing appropriateness ranged from 2.5% to 93.0% with a pooled estimate of 50.09 ([CI: 22.21-77.92%], I2 = 99.4%). Amoxicillin, gentamicin, amoxicillin-clavulanate, metronidazole, and ceftriaxone were the commonly consumed antibiotics. Community-acquired infection, hospital-acquired infection, and prophylaxis were the major indicators of antibiotic use. AMS was effective to varying degrees with bundled interventions and gamified antimicrobial stewardship decision support application being the most effective. Healthcare workers demonstrated acceptable antibiotic knowledge but individuals from formal and informal settings self-medicate with antibiotics and had moderate to low knowledge of antibiotic use and resistance.

CONCLUSION

This review identified gaps in knowledge and highlighted areas where prompt actions are required, it further guides future research endeavors and policy development. The findings underscore the need for further implementation of AMS programs across the West African region to enhance understanding of antibiotic use patterns, prescribing practices, and the factors influencing them in the region.

Antibiotic consumption in hospitals in humanitarian settings in Afghanistan, Bangladesh, Democratic Republic of Congo, Ethiopia and South Sudan

BACKGROUND

Antimicrobial resistance is of great global public health concern. In order to address the paucity of antibiotic consumption data and antimicrobial resistance surveillance systems in hospitals in humanitarian settings, we estimated antibiotic consumption in six hospitals with the aim of developing recommendations for improvements in antimicrobial stewardship programs.

METHODS

Six hospitals supported by Médecins sans Frontières were included in the study: Boost-Afghanistan, Kutupalong-Bangladesh, Baraka and Mweso-Democratic Republic of Congo, Kule-Ethiopia, and Bentiu-South Sudan. Data for 36,984 inpatients and antibiotic consumption data were collected from 2018 to 2020. Antibiotics were categorized per World Health Organization Access Watch Reserve classification. Total antibiotic consumption was measured by Defined Daily Doses (DDDs)/1000 bed-days.

RESULTS

Average antibiotic consumption in all hospitals was 2745 DDDs/1000 bed-days. Boost hospital had the highest antibiotic consumption (4157 DDDs/1000 bed-days) and Bentiu the lowest (1598 DDDs/1000 bed-days). In all hospitals, Access antibiotics were mostly used (69.7%), followed by Watch antibiotics (30.1%). The most consumed antibiotics were amoxicillin (23.5%), amoxicillin and clavulanic acid (14%), and metronidazole (13.2%). Across all projects, mean annual antibiotic consumption reduced by 22.3% during the study period, mainly driven by the reduction in Boost hospital in Afghanistan.

CONCLUSIONS

This was the first study to assess antibiotic consumption by DDD metric in hospitals in humanitarian settings. Antibiotic consumption in project hospitals was higher than those reported from non-humanitarian settings. Routine systematic antibiotic consumption monitoring systems should be implemented in hospitals, accompanied by prescribing audits and point-prevalence surveys, to inform about the volume and appropriateness of antibiotic use and to support antimicrobial stewardship efforts in humanitarian settings.

Evaluation of antibiotics in pediatrics using the defined daily doses method and the World Health Organization (WHO) access, watch, and reserve classification (AWaRe 2021): a cross-sectional study

Introduction

irrational antibiotic use can result in antibiotic resistance, which, in turn, can lead to increased morbidity and mortality, as well as high treatment costs. This phenomenon is more common in children because they are a population that often receives antibiotics. This study aimed to evaluate antibiotic use in pediatric patients in Indonesia using the Defined Daily Doses (DDD) method and the WHO Access, Watch, and Reserve Classification (AWaRe 2021).

Methods

this is an observational study that uses a quantitative approach to calculate the quantity of antibiotic use in pediatric patients in two hospitals in Central Java, Indonesia. A cross-sectional study was conducted at two referral hospitals in Central Java Province, Indonesia, from January to December 2020. The DDD approach was used to examine antibiotic use. Antibiotic use was also classified into three groups based on the World Health Organization´s "AWaRe" categorization: "Access," "Watch," and "Reserve."

Results

a total of 505 pediatric encounters were assessed. The most frequently prescribed antibiotics in pediatric inpatients were cefotaxime accounting for 42.72%, ceftriaxone 22.91% and ampicillin 12.11%. Cephalosporins 69.89% were the most commonly prescribed antibiotic class. The number of antibiotics consumed was 11.08 DDD/100 patient days. Cefotaxime, with a DDD/100 patient days value of 2.95, was the most frequently prescribed antibiotic (47.72%). Evaluation of antibiotics uses based on WHO AWaRe 2021 showed that 31.6% and 68.4% of prescribed antibiotics were in the Access category and watch category, respectively.

Conclusion

antibiotic use was high in the research setting. Over half of the antibiotic use was in the "Watch" group, according to the usage control criteria. Ceftazidime, cefixime, cefotaxime, and ceftriaxone had the highest levels of antibiotic consumption.

Drug Utilization Review of Monitored Parenteral Antimicrobials in a Tertiary Care Private Hospital in Cebu City

Background

Based on the 2017-2020 annual report of the Department of Health-Antimicrobial Resistance Surveillance Program, significant resistance patterns have been observed for common disease-causing pathogens. In the hospital setting, antimicrobial stewardship programs have been implemented to optimize the use of antimicrobials. Drug utilization review studies provide essential feedback to improve prescribing and use of medications.

Objectives

This study aimed to review drug utilization of monitored parenteral antimicrobials among patients admitted from January to December 2019.

Methods

The study employed a retrospective, cross-sectional, descriptive research design. A retrospective chart review of drugs administered to patients was conducted.

Results

A total of 821 patients charts met the inclusion criteria. The patients' ages ranged from 18 to 98 years old and 52% were females. General Internal Medicine practitioners (28%) were the top prescribers of monitored parenteral antimicrobials primarily for the management of moderate-risk community-acquired pneumonia (39%). They were mostly indicated for empirical treatment of infections (94%) and were given for an average of 5.73 days.Only 58% of the total cases had orders for culture and sensitivity testing. Of which, principally 47% had colony cultures. Blood (29%) and sputum (27%) were the most common specimens taken for culture and sensitivity testing. The microorganisms often isolated were Escherichia coli (19%), Klebsiella pneumoniae (18%), and Staphylococcus aureus (9%). In addition, extended-spectrum beta lactamase-producing gram-negative pathogens (4%) and methicillin-resistant S. aureus (1%) were also isolated. All the microorganisms isolated showed most resistance to ampicillin (81%) and most susceptibility to colistin (100%). There were drug therapy-related problems encountered. There was one case of an adverse drug reaction (0.1%) and two cases of contraindications (0.2%). Therapeutic duplication was also observed in 5% of the cases. Moreover, 39% had instances of drug-drug interactions.Piperacillin-tazobactam had the highest consumption (79.50 defined daily doses/1,000-patient days) among the monitored parenteral antimicrobials.Some prescriptions were deemed inappropriate upon evaluation. 12% of cases were inappropriate based on the justification indicator. As for the critical indicators, duration of therapy (78%) was the main reason. Only four components of the DUE criteria indicators have met or exceeded the established threshold level.The cost analysis indicated that the total actual cost of therapy with the monitored parenteral antimicrobials amounted to ₱17,645,601.73. Considering Department of Health National Antibiotic Guidelines recommendations, ideal total cost of treatment was ₱14,917,214.29. Potential cumulative cost savings of ₱2,728,387.44 could have been achieved for patients admitted last 2019.

Conclusion

Consumption of piperacillin-tazobactam was relatively high as compared to the other monitored parenteral antimicrobials covered in this study. Physicians at the study site seldom prescribe monitored parenteral antimicrobials as recommended by the National Antibiotic Guidelines. This is evidenced in the incidence of inappropriate therapy regimens, with inapt duration of therapy as the leading explanation.From the patient's perspective, the main economic implication was on the direct medical costs, particularly the increased cost of the actual antimicrobial therapy prescribed to manage various infections. Adherence of physicians to the established guidelines and selection of the most cost-effective therapy could have resulted in considerable cost savings.

Ground level utility of Access, Watch, Reserve classification: Insights from a tertiary care center in North India

BACKGROUND

The overuse and misuse of antimicrobials contribute significantly to antimicrobial resistance (AMR), which is a global public health concern. India has particularly high rates of AMR, posing a threat to effective treatment. The World Health Organization (WHO) Access, Watch, Reserve (AWaRe) classification system was introduced to address this issue and guide appropriate antibiotic prescribing. However, there is a lack of studies examining the prescribing patterns of antimicrobials using the AWaRe classification, especially in North India. Therefore, this study aimed to assess the prescribing patterns of antimicrobials using the WHO AWaRe classification in a tertiary care centre in North India.

AIM

To study the prescribing patterns of antimicrobials using WHO AWaRe classification through a cross-sectional study in All India Institute of Medical Sciences Rishikesh.

METHODS

A descriptive, cross-sectional study was conducted from July 2022 to August 2022 at a tertiary care hospital. Prescriptions containing at least one antimicrobial were included in the study. Data on prescriptions, including patient demographics, departments, types of antimicrobials prescribed, and duration of treatment, were collected. A questionnaire-based survey was also conducted to assess the knowledge and practices of prescribing doctors regarding the utility of AWaRe classification.

RESULTS

The study involved a total of 123 patients, each of whom received at least one antimicrobial prescription. Most prescriptions were for inpatients, evenly distributed between Medicine (Internal medicine, Pediatrics, Dermatology) and Surgical departments (General surgery and specialties, Otorhinolaryngology, Ophthalmology, Obstetrics and Gynecology). Metronidazole and ceftriaxone were the most prescribed antibiotics. According to the AWaRe classification, 57.61% of antibiotics fell under the Access category, 38.27% in Watch, and 4.11% in Reserve. Most Access antibiotics were prescribed within the Medicine department, and the same department also exhibited a higher frequency of Watch antibiotics prescriptions. The questionnaire survey showed that only a third of participants were aware of the AWaRe classification, and there was a lack of knowledge regarding AMR and the potential impact of AWaRe usage.

CONCLUSION

This study highlights the need for better antimicrobial prescribing practices and increased awareness of the WHO AWaRe classification and AMR among healthcare professionals. The findings indicate a high proportion of prescriptions falling under the Access category, suggesting appropriate antibiotic selection. However, there is a significant difference between the WHO Defined Daily Dose and the prescribed daily dose in the analysed prescriptions suggesting overuse and underuse of antibiotics. There is room for improvement and educational interventions and antimicrobial stewardship programs should be implemented to enhance knowledge and adherence to guidelines, ultimately contributing to the containment of AMR.

Ground level utility of Access, Watch, Reserve classification: Insights from a tertiary care center in North India

BACKGROUND

The overuse and misuse of antimicrobials contribute significantly to antimicrobial resistance (AMR), which is a global public health concern. India has particularly high rates of AMR, posing a threat to effective treatment. The World Health Organization (WHO) Access, Watch, Reserve (AWaRe) classification system was introduced to address this issue and guide appropriate antibiotic prescribing. However, there is a lack of studies examining the prescribing patterns of antimicrobials using the AWaRe classification, especially in North India. Therefore, this study aimed to assess the prescribing patterns of antimicrobials using the WHO AWaRe classification in a tertiary care centre in North India.

AIM

To study the prescribing patterns of antimicrobials using WHO AWaRe classification through a cross-sectional study in All India Institute of Medical Sciences Rishikesh.

METHODS

A descriptive, cross-sectional study was conducted from July 2022 to August 2022 at a tertiary care hospital. Prescriptions containing at least one antimicrobial were included in the study. Data on prescriptions, including patient demographics, departments, types of antimicrobials prescribed, and duration of treatment, were collected. A questionnaire-based survey was also conducted to assess the knowledge and practices of prescribing doctors regarding the utility of AWaRe classification.

RESULTS

The study involved a total of 123 patients, each of whom received at least one antimicrobial prescription. Most prescriptions were for inpatients, evenly distributed between Medicine (Internal medicine, Pediatrics, Dermatology) and Surgical departments (General surgery and specialties, Otorhinolaryngology, Ophthalmology, Obstetrics and Gynecology). Metronidazole and ceftriaxone were the most prescribed antibiotics. According to the AWaRe classification, 57.61% of antibiotics fell under the Access category, 38.27% in Watch, and 4.11% in Reserve. Most Access antibiotics were prescribed within the Medicine department, and the same department also exhibited a higher frequency of Watch antibiotics prescriptions. The questionnaire survey showed that only a third of participants were aware of the AWaRe classification, and there was a lack of knowledge regarding AMR and the potential impact of AWaRe usage.

CONCLUSION

This study highlights the need for better antimicrobial prescribing practices and increased awareness of the WHO AWaRe classification and AMR among healthcare professionals. The findings indicate a high proportion of prescriptions falling under the Access category, suggesting appropriate antibiotic selection. However, there is a significant difference between the WHO Defined Daily Dose and the prescribed daily dose in the analysed prescriptions suggesting overuse and underuse of antibiotics. There is room for improvement and educational interventions and antimicrobial stewardship programs should be implemented to enhance knowledge and adherence to guidelines, ultimately contributing to the containment of AMR.

Ground level utility of AWaRe Classification: Insights from a Tertiary Care Center In North India.. [DOI: 10.1101/2023.08.02.23293536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0]

Background

The overuse and misuse of antimicrobials contribute significantly to antimicrobial resistance (AMR), which is a global public health concern. India has particularly high rates of antimicrobial resistance, posing a threat to effective treatment. The WHO AWaRe classification system was introduced to address this issue and guide appropriate antibiotic prescribing. However, there is a lack of studies examining the prescribing patterns of antimicrobials using the AWaRe classification, especially in North India. Therefore, this study aimed to assess the prescribing patterns of antimicrobials using the WHO AWaRe classification in a tertiary care centre in North India.

Aim

To study the prescribing patterns of antimicrobials using WHO AWaRe classification through a cross-sectional study in AIIMS Rishikesh.

Methods

A descriptive, cross-sectional study was conducted from July 2022 to August 2022 at a tertiary care hospital. Prescriptions containing at least one antimicrobial were included in the study. Data on prescriptions, including patient demographics, departments, types of antimicrobials prescribed, and duration of treatment, were collected. A questionnaire-based survey was also conducted to assess the knowledge and practices of prescribing doctors regarding the utility of AWaRe classification.

Results

A total of 123 patients were included in the study, with antibiotic prescriptions being written for all of them. Most prescriptions were for inpatients, evenly distributed between Medicine and Surgical departments. Metronidazole and Ceftriaxone were the most prescribed antibiotics. According to the AWaRe classification, 57.61% of antibiotics fell under the Access category, 38.27% in Watch, and 4.11% in Reserve. The majority of Access antibiotics were prescribed in the Medicine department, while Watch antibiotics were more common in the Medicine department as well. The questionnaire survey showed that only a third of participants were aware of the AWaRe classification, and there was a lack of knowledge regarding antimicrobial resistance and the potential impact of AWaRe usage.

Conclusion

This study highlights the need for better antimicrobial prescribing practices and increased awareness of the WHO AWaRe classification and antimicrobial resistance (AMR) among healthcare professionals. The findings indicate a high proportion of prescriptions falling under the Access category, suggesting appropriate antibiotic selection. However, there is a significant difference between the WHO DDD and the prescribed daily dose in the analysed prescriptions suggesting overuse and underuse of antibiotics. There is room for improvement and educational interventions and antimicrobial stewardship programs should be implemented to enhance knowledge and adherence to guidelines, ultimately contributing to the containment of antimicrobial resistance.

Antibiotic consumption history of patients in a referred laboratory in Yaounde

Background

Regulation of antibiotic prescription and consumption remains a major public health burden in low- and middle- income countries.

Objective

This study aimed to describe the antibiotic consumption of patients who had a positive antibiotic culture in a reference laboratory.

Methods

A retrospective descriptive study was conducted among 113 participants with positive antibiograms with a documented history of antibiotics intake at the Yaoundé University Teaching Hospital in Cameroon between January 2016 and June 2021. Data were stored and analyzed using the Census and Survey Processing System version 7.3 and Statistical Package for Social Science version 25.0. Descriptive statistics were used to estimate the indicators.

Results

Of the 113 patients enrolled, 105 had a history of drug use; 56 participants (53.3%) had taken at least 2 antibiotics prior to sampling. Cephalosporins were the most consumed antibiotics (41%), followed by nitroimidazols (28.6%) and penicillins (28.6%). According to the World Health Organization classification, 55 (52.4%) took major priority antibiotics.

Conclusion

We are on the alert and there is an urgent need to raise awareness among clinicians and patients alike by providing them with good clinical practice guidelines.

Effect of restricting piperacillin/tazobactam prescription on rates of antimicrobial resistance in gram-negative bacteria and antibiotic consumption

The increasing resistance of gram-negative bacteria is a serious global public health concern. One way to prevent increasing antibiotic resistance is by implementing the antibiotic stewardship program. This study aimed to assess the changes in the consumption of antimicrobials and antimicrobial resistance rates after implementing piperacillin/tazobactam restriction. This study was conducted at Kandong Sacred Heart Hospital. We retrospectively collected and analysed data between October 2018 and May 2021 to evaluate antibiotic consumption and resistance patterns after restricting piperacillin/tazobactam. This study included two periods, a 16-month pre-restriction period and a 16-month post-restriction period. During the study period, there was a significant decrease in the consumption of piperacillin/tazobactam after implementing the restriction policy (127.82 ± 9.39 to 104.82 ± 15.66 defined daily doses/1000 patient days, p < 0.001). A significant decrease in the resistance rate of Acinetobacter spp. was observed for cefepime (p = 0.001), ceftazidime (p = 0.004), levofloxacin (p = 0.021), meropenem (p = 0.002) and piperacillin (p = 0.028). The introduction of piperacillin/tazobactam restriction reduced their use and positively impacted the resistance rates of Acinetobacter spp., carbapenem-resistant Pseudomonas spp. and carbapenem-resistant Enterobacteriaceae which are major threats to nosocomial infections.

Antibiotic utilization study in a teaching hospital in Nigeria

Background

Antibiotics have been the bedrock of modern medical care, particularly bacterial infections. However, globally, antimicrobial resistance has become a well-recognized public health threat in recent years, and interventions to reduce its burden have been launched worldwide.

Objectives

The present study evaluated antibiotic utilization in both hospitalized patients and outpatients in a University Hospital in Nigeria.

Methods

In a 3 year retrospective study between January 2017 and December 2019, 246 case files of patients were selected for the study based on inclusion and exclusion criteria. In addition, the antibiotic consumption rate for hospitalized and outpatients was determined.

Results

The total antibiotic consumption for hospitalized patients in this study was 260.9 DDD/100 bed-days, while the outpatient department’s patients were 72.3 DDD/1000 inhabitants per day. Peptic ulcer disease was the most frequent indication for antibiotic use for outpatients, with the fluoroquinolones and macrolides being the most prescribed antibiotic class and antibiotic class with the highest DDD, respectively. The most frequent indication for antibiotic use for hospitalized patients was chronic kidney diseases, with the fluoroquinolones and second-generation cephalosporins being the most prescribed antibiotic class and antibiotic class with the highest DDD, respectively. DDD per 100 bed-days and DDD per 1000 patient-days were highest in 2018. The P values for the years were 0.019, 0.195 and 0.001 for 2017, 2018 and 2019, respectively.

Conclusions

Our findings revealed irrationality in antibiotic use. Therefore, antimicrobial stewardship programmes should be implemented.

Towards implementing an Antibiotic Stewardship Intervention (ASI) in Ecuador - Evaluating antibiotic consumption and the impact of an ASI in a tertiary hospital according to the World Health Organization (WHO) recommendations

INTRODUCTION

Ecuador is a lower-to-middle income country (LMIC) not yet adherent to World Health Organization Antibiotic Stewardship Strategies (WHO-ASI) and we still lack data regarding basic metrics.

METHODS

We conducted a retrospective study of an ASI consisting of a restrictive measure to carbapenems dispensation pending on required preauthorization and expert audit. We evaluated antibiotic consumption and its relationship to carbapenems resistance at a 610-bed, tertiary level hospital in Quito, Ecuador. We used prescription data from 2010 to 2017 and converted into Defined Daily Doses (DDD). We them correlated these findings with the nature of service provided and antibiotic resistance from microbiologic lab. We used descriptive statistics and interrupted time-series analysis.

RESULTS

Throughout the study period, we analyzed 16,984,355 prescriptions of 8,191,418.57 grams of antibiotics (5,760,479.37 DDD). The in-hospital mean (SD) antibiotic prescription was 148.8 (14.8) DDD/100 occupied bed-dayss and 293.5 (65.3) DDD/100 occupied bed-dayss in the ICU. First, second and third line antibiotics consumption were 38%, 52% and 10% respectively. Our hospital data showed a high rate of antibiotic prescription in all hospital areas, mainly broad-spectrum antibiotics. Regarding the ASI introduced in 2016, the interrupted time-series analysis showed a change in the outcome level immediately following the introduction for imipenem (-3.97; 95% CI -5.31 -2.61) but not for meropenem (0.66; 95%CI -0.37 1.71).

CONCLUSION

Even though our institution's ASI was successful in reducing imipenen consumption, a more embracing plan is required for further interventions to avoid unexpected effects.