Diagnosis and management of selective fetal growth restriction in monochorionic twin pregnancies: A cross-sectional international survey

Smriti Prasad, Asma Khalil, Jamie Kirkham, Andrew Sharp, Kerry Woolfall, Tracy Karen Mitchell, Odai Yaghi, Tracey Ricketts, Mariana Popa, Zarko Alfirevic, Dilly Anumba, Richard Ashcroft, George Attilakos, Carolyn Bailie, Ahmet A. Baschat, Christine Cornforth, Fabricio Da Silva Costa, Mark Denbow, Jan Deprest, Natasha FenwickMonique C. Haak, Louise Hardman, Jane Harrold, Andy Healey, Kurt Hecher, Rajeswari Parasuraman, Lawrence Impey, Richard Jackson, Edward Johnstone, Shauna Leven, Liesbeth Lewi, Enrico Lopriore, Isabella Oconnor, Danielle Harding, Joel Marsden, Jessica Mendoza, Tommy Mousa, Surabhi Nanda, Aris T. Papageorghiou, Dharmintra Pasupathy, Jane Sandall, Shakila Thangaratinam, Baskaran Thilaganathan, Mark Turner, Brigitte Vollmer, Michelle Watson, Karen Wilding, Yoav Yinon

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Abstract

Objective: To identify current practices in the management of selective fetal growth restriction (sFGR) in monochorionic diamniotic (MCDA) twin pregnancies.

Design: Cross-sectional survey.

Setting: International.

Population: Clinicians involved in the management of MCDA twin pregnancies with sFGR.

Methods: A structured, self-administered survey.

Main Outcome Measures: Clinical practices and attitudes to diagnostic criteria and management strategies.

Results: Overall, 62.8% (113/180) of clinicians completed the survey; of which, 66.4%(75/113) of the respondents reported that they would use an estimated fetal weight(EFW) of <10th centile for the smaller twin and an inter-twin EFW discordance of >25%for the diagnosis of sFGR. For early-onset type I sFGR, 79.8% (75/94) of respondents expressed that expectant management would be their routine practice. On the other hand, for early-onset type II and type III sFGR, 19.3% (17/88) and 35.7% (30/84) of respondents would manage these pregnancies expectantly, whereas 71.6% (63/88) and57.1% (48/84) would refer these pregnancies to a fetal intervention centre or would offer fetal intervention for type II and type III cases, respectively. Moreover, 39.0% (16/41)of the respondents would consider fetoscopic laser surgery (FLS) for early-onset type IsFGR, whereas 41.5% (17/41) would offer either FLS or selective feticide, and 12.2%(5/41) would exclusively offer selective feticide. For early-onset type II and type IIIsFGR cases, 25.9% (21/81) and 31.4% (22/70) would exclusively offer FLS, respectively, whereas 33.3% (27/81) and 32.9% (23/70) would exclusively offer selective feticide.

Conclusions: There is significant variation in clinician practices and attitudes towards the management of early-onset sFGR in MCDA twin pregnancies, especially for type II and type III cases, highlighting the need for high-level evidence to guide management.
Original languageEnglish
Pages (from-to)1684-1693
Number of pages10
JournalBJOG
Volume131
Issue number12
Early online date2 Jul 2024
DOIs
Publication statusPublished - 1 Nov 2024

Keywords

  • clinical trial
  • cord occlusion
  • definition
  • diagnosis
  • etal growth restriction,
  • feticide
  • fetoscopic laser surgery
  • survey
  • intervention
  • intrauterine demise
  • morbidity
  • mortality
  • neonatal
  • pregnancy
  • small for gestational age

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