Protocol for a mixed-method analysis of implementation of case management in primary care for frequent users of healthcare services with chronic diseases and complex care needs.

INTRODUCTION: Case management (CM) in a primary care setting is a promising approach to integrating and improving healthcare services and outcomes for patients with chronic conditions and complex care needs who frequently use healthcare services. Despite evidence supporting CM and interest in implementing it in Canada, little is known about how to do this. This research aims to identify the barriers and facilitators to the implementation of a CM intervention in different primary care contexts (objective 1) and to explain the influence of the clinical context on the degree of implementation (objective 2) and on the outcomes of the intervention (objective 3). METHODS AND ANALYSIS: A multiple-case embedded mixed-methods study will be conducted on CM implemented in ten primary care clinics across five Canadian provinces. Each clinic will represent a subunit of analysis, detailed through a case history. Cases will be compared and contrasted using multiple analytical approaches. Qualitative data (objectives 1 and 2) from individual semistructured interviews (n=130), focus group discussions (n=20) and participant observation of each clinic (36 hours) will be compared and integrated with quantitative (objective 3) clinical data on services use (n=300) and patient questionnaires (n=300). An evaluation of intervention fidelity will be integrated into the data analysis. ETHICS AND DISSEMINATION: This project received approval from the CIUSSS de l'Estrie - CHUS Research Ethic Board (project number MP-31-2019-2830). Results will provide the opportunity to refine the CM intervention and to facilitate effective evaluation, replication and scale-up. This research provides knowledge on how to resp ond to the needs of individuals with chronic conditions and complex care needs in a cost-effective way that improves patient-reported outcomes and healthcare use, while ensuring care team well-being. Dissemination of results is planned and executed based on the needs of various stakeholders involved in the research.

Modified Reporting of Positive Urine Cultures to Reduce Inappropriate Treatment of Asymptomatic Bacteriuria Among Nonpregnant, Noncatheterized Inpatients: A Randomized Controlled Trial.

DESIGNWe conducted a randomized, parallel, unblinded, superiority trial of a laboratory reporting intervention designed to reduce antibiotic treatment of asymptomatic bacteriuria (ASB).METHODSResults of positive urine cultures from 110 consecutive inpatients at 2 urban acute-care hospitals were randomized to standard report (control) or modified report (intervention). The standard report included bacterial count, bacterial identification, and antibiotic susceptibility information including drug dosage and cost. The modified report stated: "This POSITIVE urine culture may represent asymptomatic bacteriuria or urinary tract infection. If urinary tract infection is suspected clinically, please call the microbiology laboratory … for identification and susceptibility results." We used the following exclusion criteria: age <18 years, pregnancy, presence of an indwelling urinary catheter, samples from patients already on antibiotics, neutropenia, or admission to an intensive care unit. The primary efficacy outcome was the proportion of appropriate antibiotic therapy prescribed.RESULTSAccording to our intention-to-treat (ITT) analysis, the proportion of appropriate treatment (urinary tract infection treated plus ASB not treated) was higher in the modified arm than in the standard arm: 44 of 55 (80.0%) versus 29 of 55 (52.7%), respectively (absolute difference, -27.3%; RR, 0.42; P = .002; number needed to report for benefit, 3.7).CONCLUSIONSModified reporting resulted in a significant reduction in inappropriate antibiotic treatment without an increase in adverse events. Safety should be further assessed in a large effectiveness trial before implementationTRIAL REGISTRATION. clinicaltrials.gov#NCT02797613Infect Control Hosp Epidemiol 2018;814-819.