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"Warrier, Anup"
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APSIC guidelines for the prevention of surgical site infections
by
Warrier, Anup
,
Ling, Moi Lin
,
Abbas, Azlina
in
Associations
,
Biomedical and Life Sciences
,
Biomedicine
2019
Background
The Asia Pacific Society of Infection Control (APSIC) launched the APSIC Guidelines for the Prevention of Surgical Site Infections in 2018. This document describes the guidelines and recommendations for the setting prevention of surgical site infections (SSIs). It aims to highlight practical recommendations in a concise format designed to assist healthcare facilities at Asia Pacific region in achieving high standards in preoperative, perioperative and postoperative practices.
Method
The guidelines were developed by an appointed workgroup comprising experts in the Asia Pacific region, following reviews of previously published guidelines and recommendations relevant to each section.
Results
It recommends that healthcare facilities review specific risk factors and develop effective prevention strategies, which would be cost effective at local levels. Gaps identified are best closed using a quality improvement process. Surveillance of SSIs is recommended using accepted international methodology. The timely feedback of the data analysed would help in the monitoring of effective implementation of interventions.
Conclusions
Healthcare facilities should aim for excellence in safe surgery practices. The implementation of evidence-based practices using a quality improvement process helps towards achieving effective and sustainable results.
Journal Article
Microbiological Spectrum of Neutropenic Sepsis in Cancer Patients Admitted to a Tertiary Health Care Centre
by
Warrier, Anup
,
Warrier, Arun
,
John, Kevin R
in
Antibiotics
,
Antimicrobial agents
,
Atherosclerosis
2023
Objective: To examine the microbiological profile, sensitivity of organisms, treatment and outcomes of in-patients suffering from febrile neutropenia in a tertiary healthcare centre.Methods: Data was obtained from the Electronic Medical Health records in Aster Medcity, Cochin, IND. The study population included adult patients undergoing treatment for hematologic malignancies or solid tumors in the hospital between January 2021 and March 2023. Febrile neutropenia episodes were identified based on (1) absolute neutrophil count ≤1500 mm3, (2) at least a single recorded oral temperature of >38.0∘C (100.4∘F) sustained over a one-hour period. Febrile neutropenia consequences included ICU admission, length of ICU admission, and mortality.Results: Total 115 cases of febrile neutropenia were identified in the time period from January 2021 to March 2023. Organisms were isolated from 43% of all the cultures taken. The most common organism isolated was Klebsiella pneumoniae (32.81%), followed by Escherichia coli (29.69%) and Pseudomonas aeruginosa (10.94%). Other organisms that were also isolated were Candida albicans (3.13%), Aeromonas hydrophilia, Acinetobacter baumannii, Burkholderia cepacia, Enterobacter cloacae, Enterococcus faecium, Staphylococcus epidermidis, Staphylococcus hemolyticus, Streptococcus spp, and one case of Ralstonia mannitolytica. Multi-drug resistance (MDR) was seen in 33% of isolates and extensive-drug resistance was seen in 19% of isolates. E. coli showed the highest prevalence of antibiotic resistance with 68% growing MDR isolates and 16% growing XDR isolates. ICU stay was required in 34% of patients with a median duration of stay of three days. A mortality rate of 16.52% was seen, with 17.11% in hematological malignancies and 15.38% in solid tumors.Conclusions: This study showed an increasing prevalence of Gram-negative bacterial infection in patients with febrile neutropenia. It also shows a high prevalence of antibiotic resistance in microbes in febrile neutropenia. Larger multi-hospital studies are required to better understand the microbiological profile of febrile neutropenia and identify the developing antimicrobial resistance trends.
Journal Article
Enhancing antimicrobial stewardship program: impact of clinical pharmacist-driven feedback in the absence of infectious diseases physicians—a multicenter quasi-experimental study
by
Kallarakkal, Hafeedha
,
Warrier, Anup R.
,
Tejaswini, Nalluri
in
Accreditation
,
Antibiotics
,
Antimicrobial agents
2025
To evaluate the impact of clinical pharmacist-driven feedback on Antimicrobial Stewardship Program (AMSP) in the absence of infectious disease physicians across three different geographic locations.
Multicenter quasi-experimental study.
Three private tertiary referral centers in different geographical locations in India.
All consecutive prescriptions with restricted antibiotics for inpatients during the study period.
This study was conducted over 15 months from June 2022 to May 2023. The impact of mentoring clinical pharmacists by infectious disease physicians, enhancing their communication abilities for providing proactive feedback, and the impact on prescription practice were measured in terms of new prescriptions of restricted antibiotics, compliance to clinical pharmacist advice, and the duration of restricted antibiotic therapy usage, measured in terms of days of therapy (DOT) of restricted antibiotics. Gross mortality was reviewed as a balancing measure, and dose/dosing errors were considered as a secondary outcome. Data were captured in Microsoft Excel and analyzed using the SPSS software.
Clinical pharmacist-led antimicrobial stewardship interventions were found to have a significant impact on decreasing antibiotic prescriptions, increasing healthcare organization policy compliance, and decreasing DOT for restricted antibiotics. Culture sampling, acceptance of antimicrobial stewardship advice, dosing errors, or mortality rates were not statistically significantly related to the other study parameters.
Clinical pharmacist-driven AMSP can be effectively implemented irrespective of the cultural and geographical setting due to their ability to improve prescription practices.
Journal Article
Epidemiology and clinical outcomes of monomicrobial carbapenem-resistant Enterobacteriaceae (CRE) from a metropolitan area of Kerala, India
2025
Introduction: The emergence of Carbapenem-resistant Enterobacteriaceae (CRE) is a major public health threat in India posing challenges in infection management. Our study aims to address the regional incidence of monomicrobial CRE in a metropolitan area of Kerala and characterize prescriptions in relation to clinical management. Methodology: The multicentre, prospective observational study was conducted in secondary and tertiary care centres jointly following public-private partnership model in Ernakulam district of Kerala, India from October 2018 to October 2019. Results: The overall incidence of monomicrobial CRE-positive cases from the study hospital network was found to be 0.855 per 1000 patient-days. Among the available data in the cohort, 77 % (312/405) were observed to attain clinical cure and in-hospital all-cause mortality was at 20% (83/410). The proportion of patients with clinical cure to treatment was found to be significantly higher than clinical failure among patients with urinary tract infections (p < 0.001, OR 2.88, 95% CI 1.73 – 4.79) and pneumonia (p < 0.001, OR 0.36, 95% CI 0.21 - 0.6) at 87% and 61% respectively in comparison to other infections. The prevalence of colistin resistance among the total number of patients recruited with isolated monomicrobial CRE was found to be at 3%. Conclusions: Our prospective study on the regional epidemiology of monomicrobial CRE has revealed notable incidence and all-cause mortality. The antimicrobial regimens for clinical management detailed in the study and the assessment of focus of infection-based clinical cure status rates indicate the need of optimized antimicrobial therapy to improve treatment practices in CRE infections.
Journal Article
Current Perspectives on Treatment of Gram-Positive Infections in India: What Is the Way Forward?
by
Warrier, Anup R.
,
Kulkarni, Atul P.
,
Nagvekar, Vasant C.
in
Antibiotics
,
Antimicrobial agents
,
Bacteria
2019
The emerging antimicrobial resistance leading to gram-positive infections (GPIs) is one of the major public health threats worldwide. GPIs caused by multidrug resistant bacteria can result in increased morbidity and mortality rates along with escalated treatment cost and hospitalisation stay. In India, GPIs, particularly methicillin-resistant Staphylococcus aureus (MRSA) prevalence among invasive S. aureus isolates, have been reported to increase exponentially from 29% in 2009 to 47% in 2014. Apart from MRSA, rising prevalence of vancomycin-resistant enterococci (VRE), which ranges from 1 to 9% in India, has raised concerns. Moreover, the overall mortality rate among patients with multidrug resistant GPIs in India is reported to be 10.8% and in ICU settings, the mortality rate is as high as 16%. Another challenge is the spectrum of adverse effects related to the safety and tolerability profile of the currently available drugs used against GPIs which further makes the management and treatment of these multidrug resistant organisms a complex task. Judicious prescription of antimicrobial agents, implementation of antibiotic stewardship programmes, and antibiotic policies in hospitals are essential to reduce the problem of drug-resistant infections in India. The most important step is development of newer antimicrobial agents with novel mechanisms of action and favourable pharmacokinetic profile. This review provides a synopsis about the current burden, treatment options, and the challenges faced by the clinicians in the management of GPIs such as MRSA, Quinolone-resistant Staphylococcus, VRE, and drug-resistant pneumococcus in India.
Journal Article
A road-map for addressing antimicrobial resistance in low- and middle-income countries: lessons learnt from the public private participation and co-designed antimicrobial stewardship programme in the State of Kerala, India
by
Warrier, Anup
,
Charani, Esmita
,
Sharma, Anuj
in
Antibiotics
,
Antimicrobial agents
,
Antimicrobial resistance
2021
Background
The global concern over antimicrobial resistance (AMR) is gathering pace. Low- and middle-income countries (LMICs) are at the epicentre of this growing public health threat and governmental and healthcare organizations are at different stages of implementing action plans to tackle AMR. The South Indian state of Kerala was one of the first in India to implement strategies and prioritize activities to address this public health threat.
Strategies
Through a committed and collaborative effort from all healthcare related disciplines and its professional societies from both public and private sector, the Kerala Public Private Partnership (PPP) has been able to deliver a state-wide strategy to tackle AMR A multilevel strategic leadership model and a multilevel implementation approach that included developing state-wide antibiotic clinical guidelines, a revision of post-graduate and undergraduate medical curriculum, and a training program covering all general practitioners within the state the PPP proved to be a successful model for ensuring state-wide implementation of an AMR action plan. Collaborative work of multi-professional groups ensured co-design and development of disease based clinical treatment guidelines and state-wide infection prevention policy. Knowledge exchange though international and national platforms in the form of workshops for sharing of best practices is critical to success. Capacity building at both public and private institutions included addressing practical and local solutions to the barriers e.g. good antibiotic prescription practices from primary to tertiary care facility and infection prevention at all levels.
Conclusion
Through 7 years of stakeholder engagement, lobbying with government, and driving change through co-development and implementation, the PPP successfully delivered an antimicrobial stewardship plan across the state. The roadmap for the implementation of the Kerala PPP strategic AMR plan can provide learning for other states and countries aiming to implement action plans for AMR.
Journal Article
Use of Ceftazidime-Avibactam in the Treatment of Clinical Syndromes With Limited Treatment Options: A Retrospective Study
by
Warrier, Anup R
,
Radha, Sneha
,
Prakash, Shilpa
in
Abscesses
,
Antibiotics
,
Antimicrobial agents
2023
Background With rising trends of multi-drug organism infections and the limited availability of new antimicrobials, management of such cases has become a hassle for the clinician. Ceftazidime-Avibactam (CEF-AVI) is evolving as an effective alternative to polymyxins in the management of Carbapenem-Resistant Organisms (CRO) infections. The Food and Drug Administration (FDA) has approved CEF-AVI in a restricted group of clinical syndromes where the drug could have potential use. Objective The goal of this study was to evaluate the clinical outcome in terms of 14-day all-cause mortality and clinical cure at seven days in patients on CEF-AVI. Methodology A retrospective study was conducted on patients who received CEF-AVI in a period of one year in our hospital. Patients were included in the study if they have received CEF-AVI for more than one day of therapy (DOT) and samples from relevant sites have been sent for culture and sensitivity. Variables and outcomes were collected from the hospital information system and medical records. Results A total of 78 patients were included, 52 (66.7%) were started empirically on CEF-AVI while 26 (33.3%) were on targeted therapy. Out of the 78 patients, 43 patients had positive cultures among which 32 patients had Carbapenem-Resistant Enterobacteriaceae (CRE)/Carbapenem-Resistant Pseudomonas aeruginosa (CRPA) infection. The most common clinical syndrome in which the drug was used was occult sepsis (27/78; 34.6%) followed by primary bacteremia (20/78; 25.6%) and neutropenic sepsis (11/78; 14.1%). The clinical efficacy which was primarily assessed in terms of clinical cure was met for 55 (70.5%) patients. The 14-day mortality for the studies group was found to be 18 (23%). Conclusion The analysis of results shows encouraging clinical cure rates and 14-day mortality rates in a subset of severe infections which has limited treatment options.
Journal Article