Evaluation of a novel, rapid antigen detection test for the diagnosis of SARS-CoV-2.

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing coronavirus disease 2019 (COVID-19) is currently finally determined in laboratory settings by real-time reverse-transcription polymerase-chain-reaction (rt-PCR). However, simple testing with immediately available results are crucial to gain control over COVID-19. The aim was to evaluate such a point-of-care antigen rapid test (AG-rt) device in its performance compared to laboratory-based rt-PCR testing in COVID-19 suspected, symptomatic patients.

Evaluation of the AMP SARS-CoV-2 rapid antigen test in a hospital setting.

Objectives: Quick and inexpensive SARS-CoV-2 screening and frontline testing are in growing demand. Our study aimed to evaluate the performance of the immunochromatographic AMP rapid antigen test (AMP RAT) compared to the gold-standard real-time reverse transcription PCR (rRT-PCR) in a hospital cohort.

Methods: A total of 392 patients, who presented consecutively with COVID-19 symptoms in our emergency department, were included in this retrospective study.

Standard blood laboratory values as a clinical support tool to distinguish between SARS-CoV-2 positive and negative patients.

Standard blood laboratory parameters may have diagnostic potential, if polymerase-chain-reaction (PCR) tests are not available on time. We evaluated standard blood laboratory parameters of 655 COVID-19 patients suspected to be infected with SARS-CoV-2, who underwent PCR testing in one of five hospitals in Vienna, Austria. We compared laboratory parameters, clinical characteristics, and outcomes between positive and negative PCR-tested patients and evaluated the ability of those parameters to distinguish between groups.

Serum level of IP-10 increases predictive value of IL28B polymorphisms for spontaneous clearance of acute HCV infection.

Background & Aims: Single nucleotide polymorphisms (SNPs) in IL28B and serum levels of interferon γ inducible protein 10 (IP-10) predict outcomes of antiviral therapy in patients with chronic hepatitis C. We associated IL28B SNPs rs12979860 and rs8099917, along with serum levels of IP-10, with outcomes of patients with acute hepatitis C (AHC).

Methods: We studied 120 patients with AHC (64 male; 37 ± 16 years old) and 96 healthy individuals (controls).

Platelet count/spleen diameter ratio for the noninvasive diagnosis of esophageal varices: results of a multicenter, prospective, validation study.

Background And Aims: Noninvasive assessment of esophageal varices (EV) may improve the management of patients with cirrhosis and decrease both the medical and financial burden related to screening. In this multicenter, international study, our aim was to prospectively validate the use of the platelet count/spleen diameter ratio for the noninvasive diagnosis of EV.

Methods: A total of 218 cirrhotic patients underwent screening endoscopy for EV.

Rapid suppression of hematopoiesis by standard or pegylated interferon-alpha.

Background & Aims: Treatment of chronic hepatitis C with interferon (IFN)-alpha often has hematotoxic effects. We evaluated the effects of acute vs. chronic and standard vs.