Abbott ARCHITECT Syphilis TP Chemiluminescent Immunoassay Accurately Diagnoses Past or Current Syphilis in Pregnancy
| Autor: | Emilie Hill, Ithiel J. Frame, Rizwana Fatabhoy, Emily H. Adhikari, Amanda L. Strickland, Rita Hollaway, Dominick Cavuoti, Donald D. McIntire |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
medicine.medical_specialty Luminescence Fluorescent treponemal antibody absorption test Rapid plasma reagin 03 medical and health sciences Syphilis Serodiagnosis 0302 clinical medicine Pregnancy Humans Medicine Syphilis Treponema pallidum Pregnancy Complications Infectious Immunoassay 030219 obstetrics & reproductive medicine medicine.diagnostic_test business.industry Obstetrics Pregnancy Outcome Obstetrics and Gynecology Fluorescent Treponemal Antibody-Absorption Test medicine.disease Pediatrics Perinatology and Child Health Female False positive rate business Algorithms Treponema pallidum particle agglutination assay |
| Zdroj: | American Journal of Perinatology. 37:112-118 |
| ISSN: | 1098-8785 0735-1631 |
| DOI: | 10.1055/s-0039-3400994 |
| Popis: | Objective We evaluate diagnostic accuracy of the ARCHITECT chemiluminescent immunoassay (CIA) screening test in pregnancy, and evaluate pregnancy outcomes among screen-positive women. Study Design Samples from routine prenatal rapid plasma reagin (RPR) tests were collected between June 22 and August 18, 2017 and frozen. Samples were batch-tested with the Abbott ARCHITECT syphilis TP immunoassay (CIA, index test). We calculated sensitivity, specificity, predictive value, and false positivity. We compared pregnancy and neonatal outcomes among screen-positive women. Results Of 1,602 specimens, 35 (2.2%) were RPR + ; of those, 24 (69%) were CIA +/Treponema pallidum particle agglutination assay (TPPA)+ and 11 (31%) were CIA-/TPPA-. Of 1,567 RPR- specimens, 14 (0.9%) were CIA + ; of those, 13 (93%) were TPPA + , and one (7%) had a false positive CIA test. Sensitivity of the CIA (95% CI) was 100% (90.5–100%), specificity 99.9% (99.6–100%), positive predictive value 97.4% (86.2–99.9%), and false positive rate 0.06% (0.002–0.4%) for current or past syphilis. Among 37 CIA +/TPPA+ women, seven (19%) had RPR-negative status (Group 1), 11 (30%) had previously treated syphilis (Group 2), and 19 (51%) had active infection (Group 3). One stillbirth occurred in a woman with early, active syphilis identified at delivery; no adverse perinatal outcomes occurred among women in Groups 1 or 2. Conclusion The ARCHITECT syphilis TP immunoassay accurately diagnoses current or past syphilis in pregnancy. Clinical history and staging remain essential using a reverse algorithm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|