Regina B Osih

Learn More
BACKGROUND In South Africa, CD4 count results are typically available within a week of testing. However, 35%-55% of newly diagnosed HIV-positive patients do not return for their CD4 results and therefore, do not access further care. We evaluated the impact of a CD4 count result and patient written information provided immediately after diagnosis on(More)
BACKGROUND Point-of-care CD4 testing can provide immediate CD4 reporting at HIV-testing sites. This study evaluated performance of capillary blood sampling using the point-of-care Pima™ CD4 device in representative primary health care clinics doing HIV testing. METHODS Prior to testing, prescribed capillary-sampling and instrument training was undertaken(More)
The impact of appropriate empirical antimicrobial therapy for Pseudomonas aeruginosa bacteremia on patient outcomes has not been clearly established. We assessed the effect of appropriate empirical therapy on in-hospital mortality and length of stay (LOS) among patients with P. aeruginosa bacteremia. This was a retrospective cohort study of inpatients with(More)
BACKGROUND Mortality in the first months of antiretroviral therapy (ART) is a significant clinical problem in sub-Saharan Africa. To date, no post-mortem study has investigated the causes of mortality in these patients. METHODS HIV-positive adults who died as in-patients at a Johannesburg academic hospital underwent chart-review and ultrasound-guided(More)
Studies of the association between inappropriate antibiotic therapy and mortality among bacteremic patients have generated conflicting findings. We systematically reviewed these studies to identify methodological heterogeneity that may explain the lack of agreement. We identified 51 articles that met the inclusion criteria, and we extracted the following(More)
BACKGROUND It is unclear whether appropriate empiric antimicrobial therapy improves outcomes in patients with bacteremia due to Escherichia coli or Klebsiella. The objective of this study is to assess the impact of appropriate empiric antimicrobial therapy on in-hospital mortality and post-infection length of stay in patients with Escherichia coli or(More)
Enterobacter species are increasingly a cause of nosocomial meningitis among neurosurgery patients, but risk factors for these infections are not well defined. A review of all adult patients hospitalized at the University of California-Los Angeles (UCLA) Medical Center during an 8-year period identified 15 postneurosurgical cases of Enterobacter meningitis(More)
Background: Point-of-care CD4 testing can provide immediate CD4 reporting at HIV-testing sites. This study evaluated performance of capillary blood sampling using the point-of-care PimaTM CD4 device in representative primary health care clinics doing HIV testing. Methods: Prior to testing, prescribed capillary-sampling and instrument training was undertaken(More)