| Amniocentesis in twin pregnancies: a systematic review of the literature. | |
MedLine Citation:
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PMID: 22028248 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Using published data, we sought to determine the amniocentesis-related loss rate in twin gestations. METHODS: We searched the PUBMED database using keywords "amniocentesis", "twin" and "twins" to identify articles evaluating genetic amniocentesis in twin gestations published from January 1970 to December 2010. Random effects models were used to pool procedure-related loss rates from included studies. RESULTS: The definition of "loss" varied across the 17 studies identified (Table 1). The pooled procedure-related loss rate at < 24 weeks was 3.5% (95% confidence interval [CI] 2.6-4.7) (Figure 2). Pooled loss rates at < 28 weeks (Figure 4) and to term (Figure 5) could not be calculated due to unacceptable heterogeneity of available data. Seven studies included a control (no amniocentesis) group and reported a pooled odds ratio for total pregnancy loss among cases of 1.8 (95% CI 1.2-2.7) (Figure 3). Only 1 study reported procedure-related loss rates by chorionicity (7.7% among monochorionics vs 1.4% among controls; p 0.02). CONCLUSION: Analysis of published data demonstrated a pooled amniocentesis-related loss rate of 3.5% in twin gestations < 24 weeks. Pooled loss rates within other post-amniocentesis intervals or other gestational age windows and the impact of chorionicity on procedure-related loss rates cannot be determined from published data. |
Authors:
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Joy Vink; Karin Fuchs; Mary E D'Alton |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Review Date: 2011-10-26 |
Journal Detail:
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Title: Prenatal diagnosis Volume: 32 ISSN: 1097-0223 ISO Abbreviation: Prenat. Diagn. Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-05-09 Completed Date: 2012-09-11 Revised Date: 2014-09-24 |
Medline Journal Info:
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Nlm Unique ID: 8106540 Medline TA: Prenat Diagn Country: England |
Other Details:
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Languages: eng Pagination: 409-16 Citation Subset: IM |
Copyright Information:
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© 2011 John Wiley & Sons, Ltd. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Amniocentesis
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adverse effects* Female Humans Pregnancy Twins* |
| Grant Support | |
ID/Acronym/Agency:
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UL1 RR024156/RR/NCRR NIH HHS; UL1 RR024156/RR/NCRR NIH HHS; UL1 RR024156-02/RR/NCRR NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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