Browsing by Author "Legenza, Laurel"

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    Application of consolidated framework for implementation research to improve Clostridioides difficile infection management in district hospitals
    (Elsevier, 2022) Legenza, Laurel; Coetzee, Renier; Rose, Warren E.
    Clostridioides difficile infection (CDI) contributes the global threats of drug resistant infections, healthcare acquired infections and antimicrobial resistance. Yet CDI knowledge among healthcare providers in low-resource settings is limited and CDI testing, treatment, and infection prevention measures are often delayed. To develop a CDI intervention informed by the local context within South African public district level hospitals, and analyze the CDI intervention and implementation process. A CDI checklist intervention was designed and implemented at three district level hospitals in the Western Cape, South Africa that volunteered to participate. Data collection included a retrospective medical records review of patients hospitalized with C. difficile test orders during the 90 days post-implementation. Patient outcomes and checklist components (e.g. antibiotics) were collected.
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    Clostridium difficile infection perceptions and practices: a multicenter qualitative study in South Africa
    (BMC, 2018) Legenza, Laurel; Barnett, Susanne; Rose, Warren; Safdar, Nasia; Emmerling, Theresa; Hee Peh, Keng; Coetzee, Renier
    BACKGROUND: Clostridium difficile infection (CDI) is understudied in limited resource settings. In addition, provider awareness of CDI as a prevalent threat is unknown. An assessment of current facilitators and barriers to CDI identification, management, and prevention is needed in limited resource settings to design and evaluate quality improvement strategies to effectively minimize the risk of CDI. METHODS: Our study aimed to identify CDI perceptions and practices among healthcare providers in South African secondary hospitals to identify facilitators and barriers to providing quality CDI care. Qualitative interviews (11 physicians, 11 nurses, 4 pharmacists,) and two focus groups (7 nurses, 3 pharmacists) were conducted at three district level hospitals in the Cape Town Metropole. Semi-structured interviews elicited provider perceived facilitators, barriers, and opportunities to improve clinical workflow from patient presentation through CDI (1) Identification, (2) Diagnosis, (3) Treatment, and (4) Prevention. In addition, a summary provider CDI knowledge score was calculated for each interviewee for seven components of CDI and management. RESULTS: Major barriers identified were knowledge gaps in characteristics of C. difficile identification, diagnosis, treatment, and prevention. The median overall CDI knowledge score (scale 0–7) from individual interviews was 3 [interquartile range 0.25, 4.75]. Delays in C. difficile testing workflow were identified. Participants perceived supplies for CDI management and prevention were usually available; however, hand hygiene and use of contact precautions was inconsistent. CONCLUSIONS: Our analysis provides a detailed description of the facilitators and barriers to CDI workflow and can be utilized to design quality improvement interventions among limited resource settings.
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    Epidemiology and outcomes of Clostridium difficile infection among hospitalised patients: results of a multicentre retrospective study in South Africa
    (BMJ Publishing Group, 2018) Legenza, Laurel; Barnett, Susanne; Rose, Warren; Bianchini, Monica; Safdar, Nasia
    INTRODUCTION Limited data exist on Clostridium difficile infection (CDI) in low-resource settings and settings with high prevalence of HIV. We aimed to determine baseline CDI patient characteristics and management and their contribution to mortality. METHODS We reviewed adult patients hospitalised with diarrhoea and a C. difficile test result in 2015 from four public district hospitals in the Western Cape, South Africa. The primary outcome measures were risk factors for mortality. Secondary outcomes were C. difficile risk factors (positive vs negative) and CDI treatment. RESULTS Charts of patients with diarrhoea tested for C. difficile (n=250; 112 C. difficile positive, 138 C. difficile negative) were reviewed. The study population included more women (65%). C. difficile-positive patients were older (46.5 vs 40.7 years, p<0.01). All-cause mortality was more common in the C. difficile-positive group (29% vs 8%, p<0.0001; HR 2.0, 95% CI 1.1 to 3.6). Tuberculosis (C. difficile positive 54% vs C. difficile negative 32%, p<0.001), 30-day prior antibiotic exposure (C. difficile positive 83% vs C. difficile negative 46%, p<0.001) and prior hospitalisation (C. difficile positive 55% vs C. difficile negative 22%, p<0.001) were also more common in the C. difficile-positive group. C. difficile positive test result (OR 4.7, 95% CI 2.0 to 11.2; p<0.001), male gender (OR 2.8, 95% CI 1.1 to 7.2; p=0.031) and tuberculosis (OR 2.3, 95% CI 1.0 to 5.0; p=0.038) were independently associated with mortality. Of patients starting treatment, metronidazole was the most common antimicrobial therapy initiated (70%, n=78); 32 C. difficile-positive (29%) patients were not treated. CONCLUSION Patients testing positive for C. difficile are at high risk of mortality at public district hospitals in South Africa. Tuberculosis should be considered an additional risk factor for CDI in populations with high tuberculosis and HIV comorbidity. Interventions for CDI prevention and management are urgently needed.
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    A mixed methods analysis of clostridioides difficile infection and implementation of a quality improvement intervention in public sector hospitals in Cape Town, South Africa
    (University of the Western Cape, 2022) Legenza, Laurel; Coetzee, Renier
    Background: Clostridioides difficile or Clostridium difficile infection (CDI), is a global health threat known for devastating outbreaks, high-cost complications, readmissions and mortality. While CDI is widely studied in high resource settings, existing literature neglects low resource settings. Prior to this study, no publications were available on the epidemiology of CDI and CDI patient outcomes in the secondary hospitals in the public healthcare sector — gaps this thesis addresses. No publications existed on provider awareness of CDI and CDI management workflow in sub-Saharan Africa. This thesis aims to a) determine baseline CDI patient characteristics, management of and contribution to mortality in SA, b) identify CDI perceptions and practices among healthcare providers in SA secondary hospitals, including facilitators and barriers to providing quality CDI care, and c) develop a CDI intervention and analysis thereof.