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Udgivet

Non-invasive prenatal testing and maternal obesity - A review

Publikation: Bidrag til tidsskriftReviewForskningpeer review

DOI

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Vis graf over relationer

Noninvasive prenatal testing (NIPT) has become a popular screening test for the most common fetal aneuploidies. The performance of NIPT is affected by several factors including maternal obesity, which results in a greater rate of no-calls for obese pregnant women. Guidelines regarding NIPT in prenatal screening have been published, but with few and divergent recommendations on the issue. We aimed to review the medical literature, guidelines from scientific societies and information material from commercial NIPT providers on no-calls and maternal obesity. We systematically identified medical literature and guidelines from scientific societies using the database MEDLINE. Information material from commercial NIPT providers was found via a systematic search on Google.com. Nine medical studies investigating the association between maternal obesity and NIPT no-calls were included. They all showed the same trend: increasing no-call rate with increasing maternal obesity. The no-call rate ranged from 0% to 4.2% for women with body mass index (BMI) 18.5-24.9 and from 5.4% to 70.1% for women BMI ≥40. We identified 17 scientific societies with guidelines and 13 commercial NIPT providers. All were checked for information material on no-calls and maternal obesity. To allow comparison, all guidelines were examined to answer the same three predefined questions. Of the 17 included scientific societies, 13 (76.5%) mentioned the association between maternal obesity and NIPT no-calls, two (11.8%) specified weight limits and three (17.6%) advised against NIPT for severely obese pregnant women. None of the 13 commercial NIPT providers provided specific recommendations, but four (30.8%) cite maternal obesity as a potential cause for a no-call. Because of the increasing number of patients in this group, we advocate updated recommendations to guide decision making in prenatal screening for obese pregnant women.

OriginalsprogEngelsk
TidsskriftActa Obstetricia et Gynecologica Scandinavica
Vol/bind99
Udgave nummer6
Sider (fra-til)744-750
Antal sider7
ISSN0001-6349
DOI
StatusUdgivet - 1 jun. 2020

ID: 59614123