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Risk factors for failed chorionic villus sampling: results of a 4-year retrospective study

Abstract : Objectives: Chorionic villus sampling (CVS) allows for earlier results for aneuploidy or genomic abnormalities compared to amniocentesis. Nevertheless, the inability to provide complete results has been described as being more frequent with CVS. This study was conducted in order to identify risk factors for such failures. Study design: A retrospective single-center study was performed from January 2014 to December 2018. Participants were divided into two groups depending on whether complete CVS results were issued (''successful CVS group'') or not (''failed CVS group''). Failure affected preliminary short-term cultures, long-term cultures, or both. Results: During the study period, 214 CVS were performed, 73 (34%) of which were classified in the failed CVS group. We observed significant intergroup differences between the successful and failed CVS groups for four variables: BMI (respectively 23.9 [+/- 5.88] and 25.9 [+/- 6.13] kg/m(2)), term at sampling (12.9 [+/- 1.35] and 12.6 [+/- 1.09] weeks gestation), trophoblastic location (posterior in 49 [40%] and 37 [66%] cases), and sampling approach (transcervical in 54 [43%] and 36 [64%] cases) (p < .05). In a stepwise binary logistic regression analysis, higher BMI, posterior trophoblastic location, and transcervical sampling approach were the only variables negatively influencing CVS success, with respective aOR [95% CI] of 0.947 [0.898; 0.996], 0.322 [0.160; 0.634], and 0.466 [0.238; 0.900]. Conclusions: In the presence of CVS failure risk factors, a discussion could be initiated regarding a deferred amniocentesis as a first option.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03603907
Contributeur : Louise Dessaivre Connectez-vous pour contacter le contributeur
Soumis le : jeudi 10 mars 2022 - 11:00:58
Dernière modification le : vendredi 11 mars 2022 - 03:00:16

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Julien Chevreau, Lucie Becart, Fabrice Sergent, Arthur Foulon, Jean Gondry, et al.. Risk factors for failed chorionic villus sampling: results of a 4-year retrospective study. JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE, 2022, 35 (1), pp.141-146. ⟨10.1080/14767058.2020.1712713⟩. ⟨hal-03603907⟩

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