Outcomes of late open fetal surgery for intrauterine spina bifida repair after 26 weeks. Should we extend the Management of Myelomeningocele Study time window?

Etchegaray, Adolfo; Cruz‐Martínez, R.; Russo, Ricardo Daniel; Martínez‐Rodríguez, Miguel; Palma, Fernando; Chavelas-Ochoa, Felipe; Beruti, Ernesto; López‐Briones, Hugo; Fregonese, Rodolfo; Villalobos‐Gómez, R.; Gámez-Varela, Alma; Allegrotti, H.; Aguilar-Vidales, Karla

doi:10.1002/pd.6119

Cited by 2 publications

(2 citation statements)

References 28 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, when the second hit strikes is unknown. Prenatal repair at a later gestational age (> 26 weeks) has been reported, and offers the potential to reduce the risk of complications due to extreme prematurity 8,19,20 . We found that there was no clinically significant deterioration in motor function between the two prenatal time points (∼22 and ∼26 weeks' gestation), thus validating our protocol of postponing prenatal repair to up to 28 weeks.…”

Section: Review In Context Of Previous Studiesmentioning

confidence: 99%

“…Moreover, our group has questioned the upper gestational-age limit for offering prenatal surgery, since our previously published results 6 , including cases which underwent fetoscopic repair beyond 26 weeks' gestation, were similar to those of the MOMS trial. The median gestational age at surgery in our cohort was 27 weeks, as we took the position that delaying surgery to 26-28 weeks, or, under certain circumstances, even later in gestation, could mitigate the risks associated with extreme prematurity; having delayed prenatal surgery by even a week or two could prove crucial if, for example, an emergency delivery was required during or soon after the surgery [6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Revisiting MOMS criteria for prenatal repair of spina bifida: upper gestational‐age limit should be raised and assessment of prenatal motor function rather than anatomical level improves prediction of postnatal function

Trigo,

Chmait,

Llanes

et al. 2024

Ultrasound in Obstet & Gyne

View full text Add to dashboard Cite

ObjectivesTo determine if the lower extremity motor function of a fetus with open spina bifida deteriorates within a four‐week interval between their first prenatal motor assessment at 22 weeks of gestation and second presurgical evaluation in cases operated at later gestational age (26‐27 weeks of gestation), and to compare prenatal and postnatal motor function to the anatomical level of the lesion.MethodsMulticenter cohort study involving cases from two centers that perform percutaneous fetoscopic repair of open spina bifida (SAFER technique). 94 fetuses with open spina bifida underwent two prenatal ultrasound evaluations before fetal surgery in approximately a four‐week interval, and one postnatal evaluation within two months of birth. Motor function classification was performed according to key muscle function from L1 to S1. Prenatal assessments were performed systematically by ultrasound at the first visit and the second evaluation occurring before fetoscopic repair. Postnatal evaluation was done via physical examination within the first two months of life. Each leg was analyzed individually; in case of discrepancy between the two legs, the worst level was considered for analysis. All motor level evaluations were compared to the anatomical level. Independent factors to a postnatal motor function reduction were assessed using a logistic regression model.ResultsPrenatal motor level was assessed at 22.5 (20.7‐24.3) and at 26.9 (25.4‐27.3) weeks’ gestation, with a median interval of 4 (2.4‐6.0) weeks. Median gestational age at surgery was 27 (25.6‐27.6) weeks. No significant difference in motor function was found between both prenatal evaluations (p=0.861). All prenatal and postnatal motor function evaluations were significantly different from the anatomical level (1st preoperative assessment, p=0.0023; 2nd preoperative assessment, p=0.0015; postnatal assessment, p=0.0333). Comparing prenatal versus postnatal motor function, we found almost 90% of babies maintained or improved motor function as compared to pre‐surgery level. In the logistic regression, lower anatomical level and higher difference between anatomical and motor level were found as independent factors for postnatal motor function (OR 0.237, p=0.002; and OR 3.44, p<0.001, respectively).ConclusionsThe 4‐week interval between the first evaluation and the “late” fetal surgical repair does not significantly change motor function, suggesting that later repair > 26 weeks does not have a negative impact on motor outcome. The preoperative neuromotor functional assessment via ultrasound was better predictive of postnatal motor function as compared to the anatomical level of the lesion in cases undergoing prenatal repair of open spina bifida and should be included in preoperative counseling.This article is protected by copyright. All rights reserved.

show abstract

Section: Review In Context Of Previous Studiesmentioning

confidence: 99%