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Myeloschisis — Clinical Guidelines

Overview

Myeloschisis, often discussed within the context of gastroschisis, refers to a congenital abdominal wall defect characterized by evisceration of abdominal contents through a defect in the anterior abdominal wall. It encompasses both simple (without bowel morbidity) and complex forms (involving bowel atresia, necrosis, or other severe complications) 1 2.

Diagnosis

Clinical Presentation: Evisceration of abdominal contents at birth or prenatal diagnosis via ultrasound 1 9.

Imaging: Prenatal ultrasonography is crucial for early detection and assessing bowel condition 1 9.

Postnatal Evaluation: Neonatal sequential organ failure assessment (nSOFA) score to quantify organ dysfunction 1.

Management

Timing of Delivery: Optimal delivery timing is post-37 weeks post-conceptual age to reduce neonatal complications 2.

Antibiotics: Prophylactic antibiotics covering skin flora to minimize infection risk 2.

Surgical Repair: Primary fascial repair when feasible; silo placement for complex cases 2 3.

Nutritional Support: Gradual progression to full enteral feeding post-surgery 3.

Special Populations

Pregnancy: Antenatal diagnosis improves outcomes; however, only a minority are diagnosed prenatally 1 3.

Pediatrics: Complex gastroschisis significantly impacts neonatal morbidity and mortality, particularly due to sepsis and bowel complications 1 3.

Key Recommendations

Deliver infants with gastroschisis after 37 weeks post-conceptual age to optimize outcomes (Evidence: Moderate 2).

Use prophylactic antibiotics targeting skin flora to reduce infection risk post-delivery (Evidence: Moderate 2).

Consider primary fascial repair for abdominal closure when abdominal domain and hemodynamics permit; use silo placement for complex cases (Evidence: Moderate 2).

Closely monitor for and manage sepsis aggressively due to its significant impact on mortality (Evidence: Moderate 3).

Implement structured case management to improve long-term outcomes and reduce healthcare costs (Evidence: Expert opinion 8).

References

1 de la Cruz D, Kaufmann E, Nicolas L, Davoodi M, Wynn JL, Aziz K. Critical Organ Dysfunction in Newborns with Gastroschisis. American journal of perinatology 2026. link 2 Slidell MB, McAteer J, Miniati D, Sømme S, Wakeman D, Rialon K et al.. Management of Gastroschisis: Timing of Delivery, Antibiotic Usage, and Closure Considerations (A Systematic Review From the American Pediatric Surgical Association Outcomes & Evidence Based Practice Committee). Journal of pediatric surgery 2024. link 3 Ţarcă E, Ciongradi I, Aprodu SG. Birth Weight, Compromised Bowel and Sepsis are the Main Variables Significantly Influencing Outcome in Gastroschisis. Chirurgia (Bucharest, Romania : 1990) 2015. link 4 Nasr A, Wayne C, Bass J, Ryan G, Langer JC. Effect of delivery approach on outcomes in fetuses with gastroschisis. Journal of pediatric surgery 2013. link 5 Fung TY, Chan LW, Leung TY, Lau TK. Gastroschisis associated with an intra-abdominal umbilical vein varix: a report of 2 cases. Fetal diagnosis and therapy 2009. link 6 Mastroiacovo P. Risk factors for gastroschisis. BMJ (Clinical research ed.) 2008. link 7 Phillips JD, Raval MV, Redden C, Weiner TM. Gastroschisis, atresia, dysmotility: surgical treatment strategies for a distinct clinical entity. Journal of pediatric surgery 2008. link 8 Mayer GG. Case management as a mindset. Quality management in health care 1996. link 9 Hensleigh PA, Ray-Friele E, Chao A, Glasscock GF. The Zavanelli maneuver for relief of abdominal dystocia associated with gastroschisis. American journal of obstetrics and gynecology 1995. link90122-1) 10 Patel F. Artefact in forensic medicine. Fetal congenital abnormality. The American journal of forensic medicine and pathology 1993. link

Myeloschisis