scholarly journals Diagnostic accuracy of a host response point-of-care test in patients with suspected COVID-19

2020 ◽  
Author(s):  
Tristan W Clark ◽  
Nathan J Brendish ◽  
Stephen Poole ◽  
Vasanth V Naidu ◽  
Christopher Mansbridge ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Host Response ◽  
Clinical Symptoms ◽  
Point Of Care ◽  
Patient Flow ◽  
High Sensitivity ◽  
Likelihood Ratios ◽  
Duration Of Symptoms ◽  
Point Of Care Test ◽  
Hospitalised Patients

AbstractRationaleManagement of the COVID-19 pandemic is hampered by long delays associated with centralised laboratory PCR testing. In hospitals this leads to poor patient flow and nosocomial transmission and rapid, accurate diagnostic tests are urgently required. The FebriDx is a point-of-care test that detects an antiviral host response protein in finger prick blood within 10 minutes, but its accuracy for the detection of COVID-19 is unknown.ObjectivesTo evaluate the diagnostic accuracy of FebriDx in hospitalised patients during the first wave of the pandemicMethodsMeasures of diagnostic accuracy were calculated based on FebriDx results compared to the reference standard of PCR, and stratified by duration of symptoms. A multivariable predictive model was developed and underwent internal validation.ResultsFebriDx was performed on 251 patients and gave a valid result in 248. 118 of 248 (48%) were PCR positive for COVID-19. Sensitivity of FebriDx for the identification of COVID-19 was 93% (110/118; 95% CI 87 to 97%) and specificity was 86% (112/130; 95%CI 79 to 92%). Positive and negative likelihood ratios were 6.73 (95%CI 4.37 to 10.37) and 0.08 (95%CI 0.04 to 0.15) respectively. In the multivariate model diagnosis of COVID-19 was not significantly influenced by clinical symptoms and signs, and FebriDx accuracy was not improved by restricting testing to those with duration of symptoms of less than seven days.ConclusionsDuring the first wave of the pandemic, FebriDx had high sensitivity for the identification of COVID-19 in hospitalised adults and could be deployed as a front door triage tool.Trial registrationISRCTN14966673

Real-World Diagnostic Accuracy of a Host Response Point-of-Care Test in Hospitalised Patients with Suspected COVID-19

2020 ◽  
Author(s):  
Nathan J. Brendish ◽  
Stephen Poole ◽  
Vasanth V. Naidu ◽  
Christopher Mansbridge ◽  
Nicholas Norton ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Real World ◽  
Host Response ◽  
Point Of Care ◽  
Point Of Care Test ◽  
Hospitalised Patients

scholarly journals Diagnostic accuracy of the FebriDx host response point-of-care test in patients hospitalised with suspected COVID-19

2020 ◽  
Vol 81 (4) ◽  
pp. 607-613 ◽  
Author(s):  
Tristan W. Clark ◽  
Nathan J Brendish ◽  
Stephen Poole ◽  
Vasanth V. Naidu ◽  
Christopher Mansbridge ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Host Response ◽  
Point Of Care ◽  
Point Of Care Test

Novel High Sensitivity Tuberculosis Point-of-Care Test for People Living with HIV

2018 ◽  
Author(s):  
Tobias Broger ◽  
Bianca Sossen ◽  
Elloise du Toit ◽  
Andrew D. Kerkhoff ◽  
Charlotte Schutz ◽  
...  
Keyword(s):  
Point Of Care ◽  
High Sensitivity ◽  
People Living With Hiv ◽  
Point Of Care Test ◽  
Living With Hiv

Diagnostic tests for detecting Chlamydia trachomatis and Neisseria gonorrhoeae in rectal and pharyngeal specimens

2021 ◽  
Author(s):  
Paul C. Adamson ◽  
Jeffrey D. Klausner
Keyword(s):  
Chlamydia Trachomatis ◽  
Neisseria Gonorrhoeae ◽  
Bacterial Infections ◽  
Point Of Care ◽  
High Sensitivity ◽  
Population Level ◽  
The United States ◽  
Nucleic Acid Amplification ◽  
Point Of Care Test ◽  
Control And Prevention

Chlamydia trachomatis and Neisseria gonorrhoeae are two of the most often reported bacterial infections in the United States. The rectum and oropharynx are important anatomic sites of infection and can contribute to ongoing transmission. Nucleic acid amplification tests (NAATs) are the mainstays for the detection of C. trachomatis and N. gonorrhoeae infections owing to their high sensitivity and specificity. Several NAATs have been evaluated for testing in rectal and pharyngeal infections. A few assays recently received clearance by the Food and Drug Administration, including one point-of-care test. Those assays can be used for testing in symptomatic individuals, as well as for asymptomatic screening in certain patient populations. Routine screening for C. trachomatis in pharyngeal specimens is not recommended by the Centers for Disease Control and Prevention, though is often performed due to the use of multiplex assays. While expanding the types of settings for screening and using self-collected rectal and pharyngeal specimens can help to increase access and uptake of testing, additional research is needed to determine the potential benefits and costs associated with increased screening for rectal and pharyngeal C. trachomatis and N. gonorrhoeae infections on a population level.

scholarly journals The fast-track outpatient clinic significantly decreases hospitalisation rates among polymyalgia rheumatica patients

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Stavros Chrysidis ◽  
Philip Rask Lage-Hansen ◽  
Nikoletta Svendsen ◽  
Andreas P. Diamantopoulos
Keyword(s):  
Polymyalgia Rheumatica ◽  
Fast Track ◽  
Clinical Symptoms ◽  
Classification Criteria ◽  
Duration Of Symptoms ◽  
Prednisolone Dose ◽  
South West ◽  
Hospitalised Patients ◽  
Number Of Patients ◽  
The Impact

Abstract Objectives This study aimed to investigate the hospitalisation rates and the reasons for hospitalisation in patients with polymyalgia rheumatica (PMR). Furthermore, it aimed to clarify the impact of a newly established Fast Track Clinic (FTC) approach on hospitalisation rates in connection with PMR diagnosis. Methods Patients diagnosed with PMR at South-West Jutland Hospital, Denmark, between 2013 and 2018 were included retrospectively. Only patients fulfilling the 2012 EULAR/ACR classification criteria were included in our cohort. An FTC for patients suspected of having PMR was established in the rheumatologic department of South-West Jutland Hospital in January 2018. Results Over 6 years (2013 to 2017), 254 patients were diagnosed with PMR, 56 of them while hospitalised. Hospitalised patients were more likely to have a higher initial CRP mean ± standard deviation (SD) 99.53 ± 59.36 vs 45.82 ± 36.96 mg/lt (p <  0.0001) and a shorter duration of symptoms (p = 0.0018). After implementing the FTC, a significant decrease in hospitalisation rates (from 20.4% to 3,5%) and inpatient days of care (mean ± SD 4.15 ± 3.1 vs 1 ± 0) were observed. No differences between the two groups were observed regarding clinical symptoms, laboratory values and initial prednisolone dose. Conclusion A substantial number of patients are hospitalised in connection with the PMR diagnosis. The FTC approach can decrease the hospitalisation rates significantly among these patients. Trial registration Retrospectively registered.

scholarly journals Diagnostic relevance of neutrophil gelatinase-associated lipocalin in early detection of acute kidney injury

2020 ◽  
Vol 7 (2) ◽  
pp. 88-92
Author(s):  
Madhusudhan Mahadevaiah ◽  
Murali Mohan Nidasale Thimmaiah ◽  
Venu Sashank Yerramsetty ◽  
Jeevan Kumar ◽  
Ranjith Kumar
Keyword(s):  
Acute Kidney Injury ◽  
Diagnostic Accuracy ◽  
Point Of Care ◽  
Area Under The Curve ◽  
Kidney Injury ◽  
Neutrophil Gelatinase Associated Lipocalin ◽  
Plasma Ngal ◽  
Point Of Care Test ◽  
Reliable Marker ◽  
Neutrophil Gelatinase

Objective: To evaluate the predictive and diagnostic accuracy of neutrophil gelatinase-associated lipocalin (NGAL) in acute kidney injury (AKI) and also to predict the renal replacement therapy (RRT) using NGAL as a marker. Methods: This prospective study was conducted among the patients admitted to intensive care units. Plasma samples were collected 24 hours after admission and NGAL was measured using Triage® NGAL test, a specific point of care test which is based on the mechanism of fluorescence immunoassay. The diagnostic accuracy of plasma NGAL (pNGAL) to predict AKI in critically ill patients of ICU was assessed by applying receiver operator curve (ROC) analysis and calculating the area under the curve (AUC). Results: In this study, 100 patients with the mean age of 49.56±19.2 years were included for the period of 18 months. The blood samples were withdrawn from the patients 24 and 44 hours after admission. Totally, 55% (n=55) of ICU patients were diagnosed with AKI. Plasma NGAL level was significantly increased in AKI patients as compared to non-AKI patients (742.65±734.72 vs. 255.62±440.09 μg/L; P<0.01). The sensitivity and specificity of NGAL for diagnosing AKI was 83.6% and 88.9%, respectively. The overall diagnostic accuracy was 86%. Diagnostic accuracy of NGAL for requirement of RRT was 51%. Conclusion: Plasma NGAL is a reliable marker for patients with AKI in ICU, in case the cause of kidney injury is not known. In addition, NGAL also predicts the RRT need based on AKI severity.

scholarly journals Evaluation of a Rapid Point of Care Test for Detecting Acute and Established HIV Infection, and Examining the Role of Study Quality on Diagnostic Accuracy: A Bayesian Meta-Analysis

PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0149592 ◽  
Author(s):  
Megan Smallwood ◽  
Rohit Vijh ◽  
Bénédicte Nauche ◽  
Bertrand Lebouché ◽  
Lawrence Joseph ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Diagnostic Accuracy ◽  
Point Of Care ◽  
Meta Analysis ◽  
Study Quality ◽  
Point Of Care Test
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