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e-Article

Impact of the size of the lesion in prenatal neural tube defect repair on imaging, neurosurgical and motor outcomes: a retrospective cohort study.
Document Type
Journal Article
Source
BJOG: An International Journal of Obstetrics & Gynaecology. Jan2021, Vol. 128 Issue 2, p392-399. 8p.
Subject
*NEURAL tube defects
*COHORT analysis
*CHILDREN'S hospitals
*FETAL surgery
*CEREBROSPINAL fluid
*BRAIN damage
*NEUROLOGIC examination
*FETOSCOPY
*OBSTETRICS surgery
*PRENATAL diagnosis
*MAGNETIC resonance imaging
*RETROSPECTIVE studies
*FETAL diseases
*TREATMENT effectiveness
*MOTOR ability
Language
ISSN
1470-0328
Abstract
Objectives: (1) To compare brain findings between large and non-large neural tube defect (NTD); (2) to evaluate the impact of large lesion on the surgical parameters; (3) to study any associations between the size of the lesions and brain findings 6 weeks postoperatively and neurological short-term outcomes.Design: Retrospective cohort study.Setting: Texas Children's Hospital, between 2011 and 2018.Population: Patients who underwent prenatal NTD repair.Methods: Large lesion was defined when the lesion's surface was >75th centile of our cohorts' lesions.Main Outcome Measures: Time of referral: ventriculomegaly and anatomical level of the lesion; surgery: duration and need for relaxing incisions. 6 weeks postoperative: hindbrain herniation (HBH) and ventriculomegaly. After delivery: dehiscence, need for hydrocephalus treatment and motor function.Results: A total of 99 patients were included, 25 of whom presented with large lesions. Type of lesion and ventriculomegaly were comparable between individuals with large and non-large lesions. Individuals with large lesions were associated with increased need for relaxing incisions by 5.4 times (95% CI 1.3-23.2, P = 0.02). Six weeks postoperatively, having a large lesion decreased by ten times the likelihood of having a postoperative reversal of HBH (odds ratio = 0.1, 95% CI 0.1-0.4, P < 0.01). At birth, larger lesions increased the risk for repair dehiscence by 6.1 times (95% CI 1.6-22.5, P < 0.01) and the risk of dehiscence or leakage of cerebrospinal fluid at birth by 5.5 times (95% CI 1.6-18.9, P < 0.01).Conclusion: Prenatal repair of patients with large NTD presents a lower proportion of HBH reversal 6 weeks after the surgery, a higher risk of dehiscence and a higher need for postnatal repair.Tweetable Abstract: Evaluation of the size of fetal NTD can predict adverse neurological outcomes after prenatal NTD repair. [ABSTRACT FROM AUTHOR]