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Conflicting recommendations exist related to which facial protection should be used by health care workers to prevent transmission of acute respiratory infections, including pandemic influenza. We performed a systematic review of both clinical and surrogate exposure data comparing N95 respirators and surgical masks for the prevention of transmissible acute respiratory infections. We searched various electronic databases and the grey literature for relevant studies published from January 1990 to December 2014. Randomized controlled trials (RCTs), cohort studies and case–control studies that included data on health care workers wearing N95 respirators and surgical masks to prevent acute respiratory infections were included in the meta-analysis. Surrogate exposure studies comparing N95 respirators and surgical masks using manikins or adult volunteers under simulated conditions were summarized separately. Outcomes from clinical studies were laboratory-confirmed respiratory infection, influenza-like illness and workplace absenteeism. Outcomes from surrogate exposure studies were filter penetration, face-seal leakage and total inward leakage. We identified 6 clinical studies (3 RCTs, 1 cohort study and 2 case–control studies) and 23 surrogate exposure studies. In the meta-analysis of the clinical studies, we found no significant difference between N95 respirators and surgical masks in associated risk of (a) laboratory-confirmed respiratory infection (RCTs: odds ratio [OR] 0.89, 95% confidence interval [CI] 0.64–1.24; cohort study: OR 0.43, 95% CI 0.03–6.41; case–control studies: OR 0.91, 95% CI 0.25–3.36); (b) influenza-like illness (RCTs: OR 0.51, 95% CI 0.19–1.41); or (c) reported workplace absenteeism (RCT: OR 0.92, 95% CI 0.57–1.50). In the surrogate exposure studies, N95 respirators were associated with less filter penetration, less face-seal leakage and less total inward leakage under laboratory experimental conditions, compared with surgical masks. Although N95 respirators appeared to have a protective advantage over surgical masks in laboratory settings, our meta-analysis showed that there were insufficient data to determine definitively whether N95 respirators are superior to surgical masks in protecting health care workers against transmissible acute respiratory infections in clinical settings.

Background Previous research suggests that medico-legal complaints often arise from various factors influencing patient dissatisfaction, including medical errors, physician-patient relationships, communication, trust, informed consent, perceived quality of care, and continuity of care. However, these findings are not typically derived from actual patients’ cases. This study aims to identify factors impacting the interpersonal dynamics between physicians and patients using real patient cases to understand how patients perceive doctor-patient relational problems that can lead to dissatisfaction and subsequent medico-legal complaints. Methods We conducted a retrospective study using data from closed medical regulatory authority complaint cases from the Canadian Medical Protective Association (CMPA) between January 1, 2015, and December 31, 2020. The study population included patients who experienced sepsis and survived, with complaints written by the patients themselves. A multi-stage standardized thematic analysis using Braun and Clarke’s approach was employed. Two researchers independently coded the files to ensure the reliability of the identified codes and themes. Results Thematic analysis of 50 patient cases revealed four broad themes: (1) Ethics in physician’s work, (2) Quality of care, (3) Communication, and (4) Healthcare system/policy impacting patient satisfaction. Key sub-themes included confidentiality, honesty, patient involvement, perceived negligence, perceived lack of concern, active engagement and empathy, transparency and clarity, informed consent, respect and demeanor, lack of resources, long wait times, and insufficient time with physicians. Conclusions This study identifies and categorizes various factors impacting relational issues between physicians and patients, aiming to increase patient satisfaction and reduce medico-legal cases. Improving physicians’ skills in areas such as communication, ethical practices, and patient involvement, as well as addressing systemic problems like long wait times, can enhance the quality of care and reduce medico-legal complaints. Additional training in communication and other skills may help promote stronger relationships between physicians and patients.

IntroductionTo our knowledge, this study is the first to identify and describe current sepsis policies, clinical practice guidelines, and health professional training standards in Canada to inform evidence-based policy recommendations.Methods and analysisThis study will be designed and reported according to the Arksey and O’Malley framework for scoping reviews and the Preferred Reporting Items for Systematic Review and Meta-Analyses Extension for Scoping Reviews. EMBASE, CINAHL, Medline, Turning Research Into Practice and Policy Commons will be searched for policies, clinical practice guidelines and health professional training standards published or updated in 2010 onwards, and related to the identification, management or reporting of sepsis in Canada. Additional sources of evidence will be identified by searching the websites of Canadian organisations responsible for regulating the training of healthcare professionals and reporting health outcomes. All potentially eligible sources of evidence will be reviewed for inclusion, followed by data extraction, independently and in duplicate. The included policies will be collated and summarised to inform future evidence-based sepsis policy recommendations.Ethics and disseminationThe proposed study does not require ethics approval. The results of the study will be submitted for publication in a peer-reviewed journal and presented at local, national and international forums.

Background Surgical sentinel events (SSEs) are serious safety incidents associated with significant patient harm and medico-legal consequences for healthcare teams and institutions. SSEs include wrong-site surgeries, wrong procedures, and unintentional retention of foreign objects. SSEs occur in hospitals and out-of-hospital operating spaces (physician offices or ambulatory surgical centres). It is unclear how the resource constraints and workflow differences of an out-of-hospital setting contribute to SSEs. Methods We conducted a retrospective review and descriptive content analysis of all out-of-hospital SSEs reported to the Canadian Medical Protective Association (CMPA) between 2012 and 2021. Medico-legal files, medical records, and peer expert opinions were analyzed to identify the contributing factors to out-of-hospital wrong-site, wrong-procedure, and retained-object SSEs. Results A total of 276 medico-legal complaints involved a wrong-site, wrong-procedure or retained-object SSE, of which 24 (24/276; 9%) occurred out of hospital. Only twenty of these out-of-hospital complaints were included in the qualitative content analysis. We identified five main contributing factor categories to out-of-hospital SSEs. These categories included (1) incomplete preoperative verification, (2) inadequate intraoperative surgical counts, (3) insufficient review of patient medical records, (4) surgery performed without the necessary resources, and (5) administrative errors or office disorganization. Half of the complaints were assigned more than one contributing factor. The majority of out-of-hospital SSEs (19/20; 95%) resulted in an unfavourable outcome for the operating physician and most (18/20; 90%) required additional healthcare resources to resolve or mitigate the consequences of the SSE. Conclusions Recognizing the contributing factors to an out-of-hospital SSE enables targeted improvements in facility protocols to support patient safety. Some factors identified in this dataset overlap with hospital-based contributing factors previously identified in literature (incomplete preoperative verification and inadequate surgical counts), whereas other novel factors are associated with the practice environment of an out-of-hospital setting (resource constraints, office disorganization). Addressing the identified contributing factors may mitigate the risk of SSEs in all facilities.

Severe sepsis, defined as sepsis associated with acute organ dysfunction, results from a generalized inflammatory and procoagulant response to an infection. 1 The rate of death from severe sepsis ranges from 30 to 50 percent despite advances in critical care. 2 – 5 In the United States, approximately 750,000 cases of sepsis occur each year, at least 225,000 of which are fatal. 6 The inflammatory and procoagulant host responses to infection are closely related. 7 Inflammatory cytokines, including tumor necrosis factor α, interleukin-1β, and interleukin-6, are capable of activating coagulation and inhibiting fibrinolysis, whereas the procoagulant thrombin is capable of stimulating multiple inflammatory pathways. 7 – . . .

IntroductionWith its legalisation and regulation in Canada in 2018, the proportion of Canadians reporting cannabis use in 2019 increased substantially over the previous year, with half of new users being aged 45+ years. While use in older adults has been low historically, as those born in the 1950s and 1960s continue to age, this demographic will progressively have more liberal attitudes, prior cannabis exposure and higher use rates. However, older adults experience slower metabolism, increased likelihood of polypharmacy, cognitive decline and chronic physical/mental health problems. There is a need to enhance knowledge of the effects of cannabis use in older adults. The following question will be addressed using a scoping review approach: what evidence exists regarding beneficial and harmful effects of medical and non-medical cannabis use in adults >50 years of age? Given that beneficial and harmful effects of cannabis may be mediated by patient-level (eg, age, sex and race) and cannabis-related factors (eg, natural vs synthetic, consumption method), subgroup effects related to these and additional factors will be explored.Methods and analysisMethods for scoping reviews outlined by Arksey & O’Malley and the Joanna Briggs Institute will be used. A librarian designed a systematic search of the literature from database inception to June 2019. Using the OVID platform, Ovid MEDLINE will be searched, including Epub Ahead of Print and In-Process and Other Non-Indexed Citations, Embase Classic+Embase, and PsycINFO for reviews, randomised trials, non-randomised trials and observational studies of cannabis use. The Cochrane Library on Wiley will also be searched. Eligibility criteria will be older adult participants, currently using cannabis (medical or non-medical), with studies required to report a cannabis-related health outcome to be eligible. Two reviewers will screen citations and full texts, with support from artificial intelligence. Two reviewers will chart data. Tables/graphics will be used to map evidence and identify evidence gaps.Ethics and disseminationThis research will enhance awareness of existing evidence addressing the health effects of medical and non-medical cannabis use in older adults. Findings will be disseminated through a peer-reviewed publication, conference presentations and a stakeholder meeting.Trial registration numberDOI 10.17605/OSF.IO/5JTAQ.

IntroductionAntimicrobial resistance undermines our ability to treat bacterial infections, leading to longer hospital stays, increased morbidity and mortality, and a mounting burden to the healthcare system. Antimicrobial stewardship is increasingly important to safeguard the efficacy of existing drugs, as few new drugs are in the developmental pipeline. While significant progress has been made with respect to stewardship in hospitals, relatively little progress has been made in the primary care setting, where the majority of antimicrobials are prescribed. OPEN Stewardship is an international collaboration to develop an automated feedback platform to improve responsible antimicrobial prescribing among primary care physicians and capable of being deployed across heterogeneous healthcare settings. We describe the protocol for an evaluation of this automated feedback intervention with two main objectives: assessing changes in antimicrobial prescribing among participating physicians and determining the usability and usefulness of the reports.Methods and analysisA non-randomised evaluation of the automated feedback intervention (OPEN Stewardship) will be conducted among approximately 150 primary care physicians recruited from Ontario, Canada and Southern Israel, based on a series of targeted stewardship messages sent using the platform. Using a controlled interrupted time-series analysis and multilevel negative binomial modelling, we will compare the antimicrobial prescribing rates of participants before and after the intervention, and also to the prescribing rates of non-participants (from the same healthcare network) during the same period. We will examine outcomes targeted by the stewardship messages, including prescribing for antimicrobials with duration longer than 7 days and prescribing for indications where antimicrobials are typically unnecessary. Participants will also complete a series of surveys to determine the usability and usefulness of the stewardship reports.Ethics and disseminationAll sites have obtained ethics committee approval to recruit providers and access anonymised prescribing data. Dissemination will occur through open-access publication, stakeholder networks and national/international meetings.

•We examine the role of behavior change theories in improving healthcare worker (HCW) vaccination rates.•Psychological theories of behavior change successfully predict HCW influenza vaccination uptake.•Behavior change constructs successfully differentiate vaccinated and non-vaccinated HCW.•Attitudes, self-efficacy, perceived risk/benefit, cues to action, and social norms are key constructs.•Behavior change theories may help guide interventions to increase HCW vaccination uptake. Influenza vaccination of healthcare workers (HCW) is important for protecting staff and patients, yet vaccine coverage among HCW remains below recommended targets. Psychological theories of behavior change may help guide interventions to improve vaccine uptake. Our objectives were to: (1) review the effectiveness of interventions based on psychological theories of behavior change to improve HCW influenza vaccination rates, and (2) determine which psychological theories have been used to predict HCW influenza vaccination uptake. MEDLINE, EMBASE, CINAHL, PsycINFO, The Joanna Briggs Institute, SocINDEX, and Cochrane Database of Systematic Reviews were searched for studies that applied psychological theories of behavior change to improve and/or predict influenza vaccination uptake among HCW. The literature search yielded a total of 1810 publications; 10 articles met eligibility criteria. All studies used behavior change theories to predict HCW vaccination behavior; none evaluated interventions based on these theories. The Health Belief Model was the most frequently employed theory to predict influenza vaccination uptake among HCW. The remaining predictive studies employed the Theory of Planned Behavior, the Risk Perception Attitude, and the Triandis Model of Interpersonal Behavior. The behavior change framework constructs were successful in differentiating between vaccinated and non-vaccinated HCW. Key constructs identified included: attitudes regarding the efficacy and safety of influenza vaccination, perceptions of risk and benefit to self and others, self-efficacy, cues to action, and social-professional norms. The behavior change frameworks, along with sociodemographic variables, successfully predicted 85–95% of HCW influenza vaccination uptake. Vaccination is a complex behavior. Our results suggest that psychological theories of behavior change are promising tools to increase HCW influenza vaccination uptake. Future studies are needed to develop and evaluate novel interventions based on behavior change theories, which may help achieve recommended HCW vaccination targets.

BackgroundUrine culturing practices are highly variable in long-term care and contribute to overprescribing of antibiotics for presumed urinary tract infections. The purpose of this study was to evaluate the use of virtual learning collaboratives to support long-term care homes in implementing a quality improvement programme focused on reducing unnecessary urine culturing and antibiotic overprescribing.MethodsOver a 4-month period (May 2018–August 2018), 45 long-term care homes were self-selected from five regions to participate in virtual learning collaborative sessions, which provided an orientation to a quality improvement programme and guidance for implementation. A process evaluation complemented the use of a controlled before-and-after study with a propensity score matched control group (n=127) and a difference-in-difference analysis. Primary outcomes included rates of urine cultures performed and urinary antibiotic prescriptions. Secondary outcomes included rates of emergency department visits, hospital admission and mortality. An 18-month baseline period was compared with a 16-month postimplementation period with the use of administrative data sources.ResultsRates of urine culturing and urinary antibiotic prescriptions per 1000 resident days decreased significantly more among long-term care homes that participated in learning collaboratives compared with matched controls (differential reductions of 19% and 13%, respectively, p<0.0001). There was no statistically significant changes to rates of emergency department visits, hospital admissions or mortality. These outcomes were observed with moderate adherence to the programme model.ConclusionsRates of urine culturing and urinary antibiotic prescriptions declined among long-term care homes that participated in a virtual learning collaborative to support implementation of a quality improvement programme. The results of this study have refined a model to scale this programme in long-term care.

Background. Complications related to the diagnosis and treatment of Trichomonas vaginalis infection, as well as the association between T. vaginalis infection and increased transmission of and susceptibility to human immunodeficiency virus, highlight the need for alternative interventions. We tested a human-safe, aluminum hydroxideadjuvanted whole-cell T. vaginalis vaccine for efficacy in a BALB/c mouse model of vaginal infection. Methods. A whole-cell T. vaginalis vaccine was administered subcutaneously to BALB/c mice, using a primeboost vaccination schedule. CD4⁺ T-cell infiltration in the murine vaginal tissue and local and systemic levels of immunoglobulins were measured at time points up to 4 weeks following infection. Results. Vaccination reduced the incidence and increased the clearance of T. vaginalis infection and induced both systemic and local humoral immune responses. CD4⁺ T cells were detected in vaginal tissues following intravaginal infection with T. vaginalis but were not seen in uninfected mice. The presence of CD4⁺ T cells following T. vaginalis infection can potentially increase susceptibility to and transmission of human immunodeficiency virus. Conclusions. The vaccine induces local and systemic immune responses and confers significantly greater protection against vaginal infection than seen in unvaccinated mice (P < .005). These data support the potential for a human vaccine against T. vaginalis infection that could also influence the incidence of human immunodeficiency virus infection.