Mr. NaderShalaka

Department of Medicine faculty of Medicine

Full name

Mr. Nader S Omar Shalaka

َQualifications

Master degree

Academic Rank

Assistant Lecturer

Biography

Contact Information

روابط التواصل

Qualifications

Master degree

MPhil (HIV Medicine)
University of Sydney
7 ,2012

Master degree

MMed (Infection and Immunity)
University of Sydney
5 ,2010

Bachelor Degree

MB.ChB
University of Tripoli (formerly Alfateh)
5 ,2005

Experiences

-

2012 - 2022

Publications

Clinical profile and factors associated with mortality in hospitalized patients with HIV/AIDS: a retrospective analysis from Tripoli Medical Centre, Libya, 2013

In Libya, little is known about HIV-related hospitalizations and in-hospital mortality. This was a retrospective analysis of HIV-related hospitalizations at Tripoli Medical Centre in 2013. Of 227 cases analysed, 82.4% were males who were significantly older (40.0 versus 36.5 years), reported injection drug use (58.3% versus 0%) and were hepatitis C virus co-infected (65.8% versus 0%) compared with females. Severe immunosuppression was prevalent (median CD4 count = 42 cell/μL). Candidiasis was the most common diagnosis (26.0%); Pneumocystis pneumonia was the most common respiratory disease (8.8%), while cerebral toxoplasmosis was diagnosed in 8.4% of patients. Current HAART use was independently associated with low risk of in-hospital mortality (OR 0.33), while central nervous system symptoms (OR 4.12), sepsis (OR 6.98) and low total lymphocyte counts (OR 3.60) were associated with increased risk. In this study, late presentation with severe immunosuppression was common, and was associated with significant in-hospital mortality. 24
Nader S Shalaka(10-2015)
Publisher's website


The diagnostic performance of chest computed tomography scanning in the diagnosis of coronavirus disease 2019 compared to polymerase chain reaction: A retrospective study of 1240 cases from Tripoli University Hospital, Libya

OBJECTIVE: The increasing prevalence of suspected cases of coronavirus disease 2019 (COVID-19) presenting to emergency departments (EDs) requires a rapid and reliable triaging tool. The diagnostic performance of chest computed tomography (CT) has yet to be validated for triaging cases in the ED. We aimed to assess the diagnostic performance of chest CT compared to GeneXpert Xpress Xpert severe acute respiratory syndrome coronavirus 2 test in rapidly diagnosing COVID-19 among patients with respiratory symptoms presenting to the ED. MATERIALS AND METHODS: This was a retrospective, single-center study at Tripoli University Hospital including cases with respiratory symptoms who underwent chest CT as well as polymerase chain reaction (PCR) testing for suspected COVID-19 between May 18 and August 18, 2020. RESULTS: A total of 1240 cases were included, among whom 570 had radiologically evident COVID-19 on chest CT (46%). Five hundred and sixty-five cases had positive PCR results (45.6%), of whom 557 had radiologically evident COVID-19 on chest CT (97.7%). The calculated accuracy, sensitivity, specificity, positive predictive value, and negative predictive value were 98%, 98.5%, 98%, 97.7%, and 98.8%, respectively, in relation to the PCR results. CONCLUSION: During the current pandemic, chest CT is a quick and reliable diagnostic tool for COVID-19 in the ED.
Nader Shalaka(11-2021)
Publisher's website


Seroprevalence of Severe Acute Respiratory Syndrome Coronavirus-2 Antibodies among People Living with HIV: A Cross-sectional Study from Tripoli University Hospital

Background/Aims: Patients with preexisting morbidities(e.g., malignancy, posttransplant, and heart failure) are recognized to be at increased risk of severe acute respiratory syndrome coronavirus‑2 (SARS‑CoV‑2) infection, as well as increased risk of mortality after infection. However, there are conflicting data on the susceptibility and prevalence of infection among people living with HIV (PLWH), with higher, lower, and equal prevalence to the general population were reported. The aim of this study was to assess the prevalence of SARS‑CoV‑2 antibodies among PLWH who are attending clinical care at the Department of Infectious Diseases of Tripoli University Hospital. Materials and Methods: A cross‑sectional study conducted during the period from October 01, 2021 to December 01, 2021 at the (Department of Infectious Diseases) outpatient clinic of Tripoli University Hospital. The OnSite Coronavirus Disease 2019 IgG/IgM Rapid Test (CTK Biotech, San Diego County, California, USA) was used to determine the presence of antibodies against the spike protein of SARS‑CoV‑2 in the collected serum samples. The test results were reported as “Negative” or “Positive” as per the manufacturer’s instructions. Results: A total of 108 PLWH were included in the study. Sixty‑nine (64%) were male, and the mean age for participants was 44 years. Specific IgG/IgM antibodies for SARS‑CoV‑2 were detected in 31 individuals, representing a seroprevalence of 28.7%. Conclusions: High seroprevalence of SARS‑CoV‑2 antibodies among nonvaccinated PLWH attending clinical care at Tripoli University Hospital. They require pritorization on vaccination and boosting
Nader Shalaka(12-2021)
Publisher's website