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Soussan S, Egloff C, Peyronnet V, Winer N, Weingertner AS, Rault E, Fuchs F, Quibel T, Bourgon N, Vivanti AJ, Rosenblatt J, Ponzio-Klijanienko A, Dap M, Mandelbrot L, Picone O. Perinatal outcomes between immediate vs deferred selective termination in dichorionic twin pregnancies with fetal congenital anomalies: a French multicenter study. Am J Obstet Gynecol MFM 2024:101363. [PMID: 38574858 DOI: 10.1016/j.ajogmf.2024.101363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Because selective termination (ST) for discordant dichorionic twin anomalies carries a risk of pregnancy loss, deferring the procedure until the third trimester can be considered in settings where it is legal. OBJECTIVE To determine whether perinatal outcomes were more favorable following deferred rather than immediate ST. STUDY DESIGN A French multicenter retrospective study from 2012 to 2023 on dichorionic twin pregnancies with ST for fetal conditions which were diagnosed before 24 WG. Pregnancies with additional risk factors for late miscarriage were excluded. We defined two groups according to the intention to perform ST within 2 weeks after the diagnosis of the severe fetal anomaly was established (immediate ST) or to wait until the third trimester (deferred ST). The primary outcome was perinatal survival at 28 days of life. Secondary outcomes were pregnancy losses before 24 WG and preterm delivery. RESULTS Of 390 pregnancies, 258 were in the immediate ST group and 132 in deferred ST group. Baseline characteristics were similar in both groups. Overall survival of the healthy co-twin was 93.8% (242/258) in the immediate ST group vs 100% (132/132) in the deferred ST group (p<0.01). Preterm birth < 37 weeks' gestation was lower in the immediate than in the deferred ST group (66.7% vs 20.2%, p<0.01); preterm birth < 28 WG and < 32 WG did not differ significantly (respectively 1.7% vs 0.8%, p=0.66 and 8.26% vs 11.4%, p=0.36). In the deferred ST group, an emergency procedure was performed in 11.3% (15/132) because of threatened preterm labor, of which 3.7% (5/132) for imminent delivery. CONCLUSION Overall survival after ST was high regardless of the gestational age at which the procedure was performed. Postponing ST until the third trimester seems to improve survival, while immediate ST reduces the risk of preterm delivery. Furthermore, deferred ST requires an expert center capable of performing the ST procedure on an emergency basis if required.
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Affiliation(s)
- Stanley Soussan
- Service de Gynécologie-Obstétrique, Hôpital Louis-Mourier, AP-HP, Colombes, France; Universié Paris Cité, Paris, France
| | - Charles Egloff
- Service de Gynécologie-Obstétrique, Hôpital Louis-Mourier, AP-HP, Colombes, France; Universié Paris Cité, Paris, France
| | - Violaine Peyronnet
- Service de Gynécologie-Obstétrique, Hôpital Louis-Mourier, AP-HP, Colombes, France
| | - Norbert Winer
- Service de gynécologie-obstétrique, CHU de Nantes, Nantes, France
| | - Anne-Sophie Weingertner
- Service de gynécologie-obstétrique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Emmanuel Rault
- Service de gynécologie-obstétrique, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Lyon, France
| | - Florent Fuchs
- Service de Gynécologie-Obstétrique. CHU de Montpellier., Hôpital Arnaud de Villeneuve 371 Avenue du Doyen Gaston Giraud, Montpellier, France; Inserm CESP Centre de recherche en Épidémiologie et Santé des Populations, U1018, Équipe Épidémiologie Clinique, Villejuif; Institut Desbrest d'Épidémiologie et de Santé Publique (IDESP), Univ Montpellier, INSERM, (CHU Montpellier), Montpellier, France
| | - Thibault Quibel
- Maternité, Centre hospitalier intercommunal de Poissy - Saint Germain en Laye, Poissy, France; Université Paris Saclay, UVSQ, Inserm, Équipe U1018, Épidémiologie clinique, CESP, Montigny-le-Bretonneux
| | - Nicolas Bourgon
- Service Obstétrique - Maternité, chirurgie médecine et imagerie fœtales, Hôpital Necker, AP-HP, Paris, France
| | - Alexandre J Vivanti
- Service de Gynécologie - Obstétrique, Hôpital Antoine Béclère, AP-HP, Clamart, France
| | - Jonathan Rosenblatt
- Service de Gynécologie-Obstétrique, Hôpital Robert Debré, AP-HP, Paris, France
| | | | - Matthieu Dap
- Service de gynécologie-obstétrique, CHRU de Nancy, Université de Lorraine, Nancy, France
| | - Laurent Mandelbrot
- Service de Gynécologie-Obstétrique, Hôpital Louis-Mourier, AP-HP, Colombes, France; Universié Paris Cité, Paris, France; IAME, INSERM, Paris, France; FHU PREMA, Paris, France.
| | - Olivier Picone
- Service de Gynécologie-Obstétrique, Hôpital Louis-Mourier, AP-HP, Colombes, France; Universié Paris Cité, Paris, France; IAME, INSERM, Paris, France; FHU PREMA, Paris, France
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