Academic Journal
Noninvasive detection of fetal trisomy 21: systematic review and report of quality and outcomes of diagnostic accuracy studies performed between 1997 and 2012
| العنوان: | Noninvasive detection of fetal trisomy 21: systematic review and report of quality and outcomes of diagnostic accuracy studies performed between 1997 and 2012 |
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| المؤلفون: | Mersy, E., Smits, L. J. M., van Winden, L. A. A. P., de Die-Smulders, C. E. M., Paulussen, A. D. C., Macville, M. V. E., Coumans, A. B. C., Frints, S. G. M. |
| المصدر: | Mersy , E , Smits , L J M , van Winden , L A A P , de Die-Smulders , C E M , Paulussen , A D C , Macville , M V E , Coumans , A B C & Frints , S G M 2013 , ' Noninvasive detection of fetal trisomy 21: systematic review and report of quality and outcomes of diagnostic accuracy studies performed between 1997 and 2012 ' , Human Reproduction Update , vol. 19 , no. 4 , pp. 318-329 . https://doi.org/10.1093/humupd/dmt001 |
| سنة النشر: | 2013 |
| المجموعة: | Maastricht University Research Publications |
| مصطلحات موضوعية: | noninvasive prenatal testing, trisomy 21, cell-free fetal DNA, RNA, QUADAS-2 |
| الوصف: | Research on noninvasive prenatal testing (NIPT) of fetal trisomy 21 is developing fast. Commercial tests have become available. To provide an up-to-date overview of NIPT of trisomy 21, an evaluation of the methodological quality and outcomes of diagnostic accuracy studies was made. We undertook a systematic review of the literature published between 1997 and 2012 after searching PubMed, using MeSH terms RNA, DNA and Down Syndrome in combination with cell-free fetal (cff) RNA, cffDNA, trisomy 21 and noninvasive prenatal diagnosis and searching reference lists of reported literature. From 79 abstracts, 16 studies were included as they evaluated the diagnostic accuracy of a molecular technique for NIPT of trisomy 21, and the test sensitivity and specificity were reported. Meta-analysis could not be performed due to the use of six different molecular techniques and different cutoff points. Diagnostic parameters were derived or calculated, and possible bias and applicability were evaluated utilizing the revised tool for Quality Assessment of Diagnostic Accuracy (QUADAS-2). Seven of the included studies were recently published in large cohort studies that examined massively parallel sequencing (MPS), with or without pre-selection of chromosomes, and reported sensitivities between 98.58 [95 confidence interval (CI) 95.999.5] and 100 (95 CI 96100) and specificities between 97.95 (95 CI 94.199.3) and 100 (95 CI 99.1100). None of these seven large studies had an overall low risk of bias and low concerns regarding applicability. MPS with or without pre-selection of chromosomes exhibits an excellent negative predictive value (100) in conditions with disease odds from 1:1500 to 1:200. However, positive predictive values were lower, even in high-risk pregnancies (19.7100). The other nine cohort studies were too small to give precise estimates (number of trisomy 21 cases: 25) and were not included in the discussion. NIPT of trisomy 21 by MPS with or without pre-selection of chromosomes is promising and likely to replace the ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1093/humupd/dmt001 |
| الاتاحة: | https://cris.maastrichtuniversity.nl/en/publications/9092bf53-0cd5-4b5e-90fb-4607817d2aa0 https://doi.org/10.1093/humupd/dmt001 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.6A487D42 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/humupd/dmt001 |
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