Purpose
This study investigated the clinical characteristics, anatomical distribution, operative management, and postoperative outcomes of pediatric patients who underwent surgery for intestinal duplication and were registered through a nationwide multicenter survey conducted by the Korean Association of Pediatric Surgeons (KAPS).
Methods
KAPS conducted a nationwide multicenter retrospective survey across 18 institutions between 2020 and 2024 and collected data from 144 patients.
Results
Female patients accounted for 55.6% of surgically treated cases, corresponding to a male to female ratio of 1:1.25. Vomiting and abdominal pain were the most common presenting symptoms. Prenatal diagnosis was achieved in 43.7% of cases. The ileum was the most common site of intestinal duplication (41.0%). Cystic duplications predominated (82.6%), and communication with the native bowel was documented in 19.4% of cases. Elective surgery was performed in 83.3% of patients, with laparoscopic-assisted surgery being the most commonly used approach (52.8%). The most frequently performed surgical procedures were excision (49.3%) and bowel resection with anastomosis (47.2%). Recurrence occurred in three patients (2.1%), and mortality was reported in one patient (0.7%).
Conclusion
This study represents the largest multicenter dataset on intestinal duplication in South Korea and provides comprehensive information regarding its clinical characteristics and surgical outcomes. These findings may serve as a useful reference for understanding the clinical spectrum and operative management of pediatric intestinal duplication in South Korea and may support the development of future standardized prospective studies.

Purpose
This study provides insights into the prevalence at birth, clinical characteristics, and outcomes of gastroschisis and omphalocele in Korea over the past decade, addressing the lack of localized data despite advanced healthcare capabilities.
Methods
The study retrospectively analyzed data from 20 pediatric surgical centers in Korea from January 2012 to December 2021, including 269 patients diagnosed with gastroschisis or omphalocele. Data variables included gender, gestational age, birth weight, associated anomalies, type of defect, surgical interventions, and outcomes.
Results
The study covered 269 patients, with 80 gastroschisis and 189 omphalocele cases. Gastroschisis prevalence at birth remained stable at 2.15 per 100,000 live births, while omphalocele increased to 5.08 per 100,000. Both conditions had similar gender ratios (0.95). Gastroschisis patients had lower birth weights (2,463.90±505.50 g) and smaller head circumferences (31.97±1.86 cm) compared to omphalocele patients (2,757.65±761.24 g, 32.78±2.64 cm). Omphalocele cases had more associated anomalies, especially cardiovascular issues. Prenatal diagnosis rates were high: 93.7% for gastroschisis and 86.4% for omphalocele. About 96.3% of gastroschisis and 84.1% of omphalocele patients were born in their treatment hospitals. Gastroschisis patients underwent surgery sooner (average 3.5 days) and started feeding later (16.5 days) than omphalocele patients (average 56.5 days to surgery, 6.6 days to start feeding). Hospital stays and follow-up durations were similar, averaging around 782.6 days for gastroschisis and 800.3 days for omphalocele patients. Survival rates were 89.7% for gastroschisis and 87.1% for omphalocele.
Conclusion
The study highlights the need for early diagnosis, centralized care, and specialized surgical approaches to optimize outcomes for gastroschisis and omphalocele patients in Korea. Enhanced prenatal screening and surgical protocols are recommended to improve these patients' prognosis.