Overview
Omphalocele is a congenital anomaly characterized by herniation of abdominal contents through the umbilicus. It often occurs with associated malformations, genetic anomalies, or syndromes, impacting prenatal management and postnatal outcomes 14.Diagnosis
Key Diagnostic Criteria: Prenatal ultrasound detection of abdominal contents protruding through the umbilicus 7.
Recommended Tests:
- Prenatal ultrasound with possible contrast enhancement for detailed assessment 7.
- Elevated maternal serum alpha-fetoprotein levels may indicate associated anomalies 6.
Grading: Size of omphalocele and liver herniation are noted but not significantly associated with specific malformations in live births 1.Management
First-Line Treatments:
- Prenatal diagnosis facilitates multidisciplinary planning involving obstetricians, neonatologists, and pediatric surgeons 7.
- Primary surgical closure is considered based on prenatal assessment, though often not feasible 2.
Adjunctive Treatments:
- Postoperative care includes management of associated anomalies (e.g., cardiovascular, genitourinary) 1.
- Monitoring for complications such as bowel obstruction, which may require surgical intervention 5.Special Populations
Pregnancy: Prenatal diagnosis impacts decisions on continuation of pregnancy, with higher rates of termination in cases with major malformations 1.
Pediatrics: Neonates often require immediate surgical intervention post-birth, tailored to the extent of omphalocele and associated anomalies 7.
Comorbidities: Exposure to sodium valproate in utero may increase risk of omphalocele alongside fetal valproate syndrome 5.Key Recommendations
Prenatal diagnosis improves outcomes through multidisciplinary planning (Evidence: Moderate 7).
Primary closure prediction varies among consultants but is challenging; focus on omphalocele content for counseling (Evidence: Moderate 2).
Consider genetic and syndromic associations in cases of nonsyndromic omphalocele, especially in offspring of women with no previous live births (Evidence: Moderate 3).
Screen for PITX2 mutations in cases with VATER-like syndromes or omphalocele to explore potential genetic contributions (Evidence: Weak 4).
Evaluate for and manage associated anomalies prenatally and postnatally to optimize outcomes (Evidence: Moderate 17).References
1 Parata G, Vial Y, Addor MC, Pellegrinelli JM, Wildhaber BE. Anatomic parameters of omphaloceles and their association with anatomic, genetic, or syndromic malformations: a retrospective study. Pediatric surgery international 2024. link
2 Peters NC, Visser 't Hooft ME, Eggink AJ, Tibboel D, Ursem N, Wijnen RM et al.. Prenatal Prediction of the Type of Omphalocele Closure by Different Medical Consultants. Fetal diagnosis and therapy 2016. link
3 Agopian A, Marengo L, Mitchell LE. Descriptive epidemiology of nonsyndromic omphalocele in Texas, 1999-2004. American journal of medical genetics. Part A 2009. link
4 Katz LA, Schultz RE, Semina EV, Torfs CP, Krahn KN, Murray JC. Mutations in PITX2 may contribute to cases of omphalocele and VATER-like syndromes. American journal of medical genetics. Part A 2004. link
5 Boussemart T, Bonneau D, Levard G, Berthier M, Oriot D. Omphalocele in a newborn baby exposed to sodium valproate in utero. European journal of pediatrics 1995. link
6 Budorick NE, Pretorius DH, McGahan JP, Grafe MR, James HE, Slivka J. Cephalocele detection in utero: sonographic and clinical features. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 1995. link
7 Wilson BR, Turner D, Langendoerfer S, Haverkamp AD. Prental diagnosis and subsequent team approach to the management of omphalocele. The Journal of reproductive medicine 1980. link