Document Detail


Pitfalls in the diagnosis of nonconjoined monoamniotic twins.
MedLine Citation:
PMID:  8648458     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The morbidity and mortality of monoamniotic twins are high. Despite recent advances in imaging, the definitive diagnosis of monoamniotic twins remains elusive. When monoamniotic twins are suspected, the optimal antepartum management is uncertain. A false-positive diagnosis of monoamniotic twins by computed tomographic amniography was investigated. By a Medline search the literature on monoamnionicity from 1966 to January 1994 was reviewed. All reports including diagnostic methods and management of monoamniotic twins were reviewed. All five previous case reports of computed tomographic amniography correctly identified amnionicity in cases in which amnionicity was unclear. Four cases confirmed monoamnionicity and one case excluded monoamnionicity. Four recent series that used ultrasonography revealed a low predictive accuracy (9% to 25%) for the establishment of monoamnionicity when intervening membranes were absent. One recent prospective series revealed a positive predictive value of 80% among five monoamniotic twin pairs with the use of first-trimester ultrasonography. The methods available to diagnose monoamniotic twins are improving. The complications that result from a false-positive diagnosis are discussed and the management and diagnosis of monoamniotic twins are reviewed.
Authors:
K Strohbehn; B J Dattel
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Publication Detail:
Type:  Case Reports; Journal Article; Review    
Journal Detail:
Title:  Journal of perinatology : official journal of the California Perinatal Association     Volume:  15     ISSN:  0743-8346     ISO Abbreviation:  J Perinatol     Publication Date:    1995 Nov-Dec
Date Detail:
Created Date:  1996-07-19     Completed Date:  1996-07-19     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  8501884     Medline TA:  J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  484-93     Citation Subset:  IM    
Affiliation:
Department of Obstetrics, Gynecology, University of California, San Francisco, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Amnion* / radiography,  ultrasonography
Diagnostic Errors
Female
Humans
Monitoring, Physiologic
Pregnancy
Pregnancy Outcome
Prenatal Diagnosis* / methods
Reproducibility of Results
Tomography, X-Ray Computed
Twins, Monozygotic*
Ultrasonography, Prenatal

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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