E Rogozińska1,2, L Kara-Newton1, J R Zamora1,3, K S Khan1,2. 1. Women's Health Research Unit, Blizard Institute, Barts and the London School of Medicine and Dentistry, London, UK. 2. Multidisciplinary Evidence Synthesis Hub (mEsh), Centre for Primary Care and Public Health, Blizard Institute, Barts and the London School of Medicine and Dentistry, London, UK. 3. Clinical Biostatistics Unit, Hospital Ramon y Cajal (IRYCIS) and CIBER Epidemiology and Public Health, Madrid, Spain.
Abstract
BACKGROUND: Syphilis in pregnancy can lead to fetal and neonatal death or congenital anomalies. Accurate on-site tests are an essential part of effective prevention of mother-to-child transmission of the disease. OBJECTIVE: This systematic review assessed the accuracy of on-site tests to detect infection with Treponema pallidum in pregnant women. SEARCH STRATEGY: Major databases were searched from inception to January 2016 using terms: 'pregnancy', 'antenatal', 'syphilis', 'Treponema pallidum' with their variations, and the search limit for the relevant study design. SELECTION CRITERIA: We included studies that used dual reference standard (non-treponemal and treponemal tests) to detected syphilis in pregnancy. DATA COLLECTION AND ANALYSIS: Extracted accuracy data were tabulated and pooled using hierarchical, bivariate random effects model. MAIN RESULTS: Seven studies (combined sample 17 546) reporting the accuracy of four on-site tests met the eligibility criteria. On average, Determine™ and SD BioLine Syphilis 3.0 had the highest sensitivity of all the evaluated tests: 0.83 (95% CI 0.58, 0.98) and 0.86 (95% CI 0.82, 0.89), respectively, with a high specificity 0.96 (95% CI 0.89, 1.00) and 0.99 (95% CI 0.94, 1.00), respectively. The Qualitative Rapid Plasma Reagin card commonly used in clinical practice had a pooled sensitivity of 0.70 (95% CI 0.54, 0.88) and specificity of 0.97 (95% CI 0.96, 0.99). CONCLUSION: Immunochromatographic tests such as Determine™ and SD BioLine Syphilis 3.0 seem to be acceptable options in antenatal testing for syphilis, especially in resource-limited settings. Future research should seek more evidence to strengthen this claim. TWEETABLE ABSTRACT: On-site test to detect syphilis-options during antenatal care.
BACKGROUND: Syphilis in pregnancy can lead to fetal and neonatal death or congenital anomalies. Accurate on-site tests are an essential part of effective prevention of mother-to-child transmission of the disease. OBJECTIVE: This systematic review assessed the accuracy of on-site tests to detect infection with Treponema pallidum in pregnant women. SEARCH STRATEGY: Major databases were searched from inception to January 2016 using terms: 'pregnancy', 'antenatal', 'syphilis', 'Treponema pallidum' with their variations, and the search limit for the relevant study design. SELECTION CRITERIA: We included studies that used dual reference standard (non-treponemal and treponemal tests) to detected syphilis in pregnancy. DATA COLLECTION AND ANALYSIS: Extracted accuracy data were tabulated and pooled using hierarchical, bivariate random effects model. MAIN RESULTS: Seven studies (combined sample 17 546) reporting the accuracy of four on-site tests met the eligibility criteria. On average, Determine™ and SD BioLine Syphilis 3.0 had the highest sensitivity of all the evaluated tests: 0.83 (95% CI 0.58, 0.98) and 0.86 (95% CI 0.82, 0.89), respectively, with a high specificity 0.96 (95% CI 0.89, 1.00) and 0.99 (95% CI 0.94, 1.00), respectively. The Qualitative Rapid Plasma Reagin card commonly used in clinical practice had a pooled sensitivity of 0.70 (95% CI 0.54, 0.88) and specificity of 0.97 (95% CI 0.96, 0.99). CONCLUSION: Immunochromatographic tests such as Determine™ and SD BioLine Syphilis 3.0 seem to be acceptable options in antenatal testing for syphilis, especially in resource-limited settings. Future research should seek more evidence to strengthen this claim. TWEETABLE ABSTRACT: On-site test to detect syphilis-options during antenatal care.
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