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This article compares the rate of hydrocephalus needing surgical treatment in children with open spina bifida who undergo late open fetal surgery above 26 weeks and those who receive postnatal surgical repair. The study found that late open intrauterine spina bifida repair after 26 weeks is associated with a lower rate of hydrocephalus needing surgical treatment compared to postnatal surgical repair. The fetal surgery group had a lower gestational age at birth, lower frequency of neonatal hydrocephalus, and lower need for ventriculo-peritoneal shunting or neonatal neuroendoscopy for third ventriculostomy. [Extracted from the article]

ABSTRACT Objective To assess the effectiveness of laser surgery in fetuses with a cystic lung lesion with systemic arterial blood supply (hybrid lung lesion) at risk of perinatal death. Methods A cohort of five consecutive fetuses with a large hybrid lung lesion associated with hydrops and/or pleural effusion with severe lung compression was selected for percutaneous ultrasound-guided fetal laser ablation of the feeding artery ( FLAFA) before 32 weeks' gestation in a single tertiary national referral center in Queretaro, Mexico. The primary outcomes were survival and need for postnatal surgery. Results FLAFA was performed successfully in all cases at a median gestational age of 24.9 (range, 24.4-31.7) weeks. After fetal intervention, dimensions in both lungs increased and fluid effusions resolved in all cases. All cases were delivered liveborn at term at a median gestational age of 39.6 (range, 38.0-39.7) weeks, without respiratory morbidity or need for oxygen support, resulting in perinatal survival of 100%. During follow-up, three (60%) cases showed progressive regression of the entire lung mass and did not require postnatal surgery, whereas in two (40%) cases a progressive decrease in size of the mass was observed but a cystic portion of the lung mass persisted and postnatal lobectomy was required. Conclusion In fetuses with large hybrid lung lesions at risk of perinatal death, FLAFA is feasible and could improve survival and decrease the need for postnatal surgery. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd. [ABSTRACT FROM AUTHOR]

To describe the technique, feasibility of, and survival outcomes of single percutaneous uterine access for bilateral pleuroamniotic shunting (PAS) in fetuses with severe hydrothorax and hydrops by using an internal rotational manoeuvre and to compare perinatal outcomes between successful and failed procedures. Conclusions In fetuses with severe bilateral hydrothorax and hydrops, bilateral pleuroamniotic shunting through a successful single percutaneous uterine access is feasible in up to 60% of cases and is associated with better perinatal outcomes. The perinatal outcomes between those with bilateral PAS placed through a successful (single uterine port) or failed (two uterine ports) fetal procedures were compared. [Extracted from the article]

Conclusions Fetal surgery for intrauterine spina bifida repair is a reality in Mexico, which is now available in 5 centres in 4 cities and will be available in 5 further centres in 4 more cities. Regarding open fetal surgery, the only public institution with this program is located in Querétaro, which is the only centre with overall experience of more than 10 consecutive procedures (Queretaro n = 80). To describe the availability of fetal surgery techniques for intrauterine correction of spina bifida in Mexico. [Extracted from the article]

Results 694 articles were found in the literature; 11 articles described the results of fetal surgery cases with intrauterine correction of spina bifida. Methods A search was performed in PubMed, Embase, Scope, Scielo y Google Scholar for all articles in English and Spanish published between January 1990 and March 2021 with the keywords: "spina bifida", "fetal surgery", "spina bifida", "fetal surgery". To describe the outcomes of fetal surgery techniques for intrauterine correction of spina bifida. [Extracted from the article]

Conclusions In pregnancies complicated with OSB late prenatal diagnosis is the main factor precluding fetal surgery. To assess factors precluding open fetal surgery in pregnancies with prenatal diagnosis of open spina bifida (OSB). [Extracted from the article]

To describe changes in brain velocities in fetuses with intrauterine open spina bifida repair. Methods A cohort of fetuses with open spina bifida selected for open fetal microneurosurgery for intrauterine spina bifida repair were recruited. [Extracted from the article]

To assess the utility of cervical length (CL) in predicting the risk of preterm delivery in fetuses with open fetal microneurosurgery for intrauterine spina bifida repair. Methods Between January 2019 to February 2021, a cohort of singleton fetuses with confirmed open spina bifida were selected for intrauterine repair in our fetal surgery centre in Querétaro, México. [Extracted from the article]

To compare lung size measurements in fetuses with left-sided congenital diaphragmatic hernia (CDH) by means of the observed/expected lung to head ratio between two different fetal positions. OC18.05: Lung size measurement in fetuses with left-sided congenital diaphragmatic hernia: does fetal position affect the results? Comparison between two fetal positions was made: group 1 with the lung measurement made close to the ultrasound probe and group 2 with the lung distant to the probe. [Extracted from the article]

To describe Doppler changes in umbilical artery (UA), middle cerebral artery (MCA) and ductus venosus (DV) during fetal myelomeningocele repair through a mini-hysterotomy. Fetal myelomeningocele repair was performed through a 1.5 to 2.5cm hysterotomy and Doppler in UA, MCA and DV were taken intraoperatively to describe the changes during fetal surgery. [Extracted from the article]

P12.04: Feasibility of fetal myelomeningocele repair through a 1.5-2.5cm mini hysterotomy Fetal myelomeningocele repair was performed through a 1.5 to 2.5cm mini hysterotomy under general maternal anesthesia. Fetal myelomeningocele repair through a 1.5-2.5cm mini hysterotomy is feasible and is associated with good perinatal outcomes. [Extracted from the article]

An abstract of the article "Fetal surgery by full laser ablation of the feeding artery for cystic lung lesions with systemic arterial blood supply (hybrid lung lesions)" by R. Cruz-Martinez and colleagues is presented.

An abstract of the paper "Lung mass regression sequence after percutaneous intrafetal laser ablation of the feeding artery in fetuses with bronchopulmonary sequestration and hydrops" by A. Mendez and others, from the 24th World Congress on Ultrasound in Obstetrics and Gynecology, is presented.