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Published on: April 17, 2020
Population-based study of esophageal and small intestinal atresia/stenosis
Daijiro Takahashi1,2, Takehiko Hiroma1, Shigeru Takamizawa3
1Division of Neonatology, Nagano Children's Hospital, Nagano, Japan.
Insights
The prevalence of esophageal and small intestinal atresia/stenosis has significantly increased in Nagano, Japan. Prenatal diagnosis of esophageal atresia/stenosis is linked to more anomalies, especially chromosomal ones.
Area of Science:
- Pediatric Surgery
- Medical Genetics
- Epidemiology
Background:
- Esophageal atresia/stenosis and small intestinal atresia/stenosis are congenital conditions requiring surgical intervention.
- Understanding their prevalence and associated factors is crucial for public health and clinical management.
Purpose of the Study:
- To determine the prevalence of esophageal atresia/stenosis and small intestinal atresia/stenosis in Nagano, Japan.
- To investigate associated anomalies, prenatal diagnosis rates, and survival outcomes.
- To analyze trends in prevalence over time.
Main Methods:
- A population-based cohort study was conducted from 1993 to 2011.
- Statistical analyses included Mann-Whitney, chi-squared, and Kruskal-Wallis tests.
- Prevalence rates were calculated per 10,000 births.
Main Results:
- Prevalences were 1.97 for esophageal atresia/stenosis and 2.23 for small intestinal atresia/stenosis per 10,000 births.
- Significant increases in prevalence were observed for both conditions from 1993-2001 to 2002-2011.
- Duodenal atresia/stenosis showed a strong association with chromosomal anomalies, particularly trisomy 21 (55%).
Conclusions:
- The incidence of esophageal and small intestinal atresia/stenosis has risen significantly between the two study periods.
- Prenatally diagnosed esophageal atresia/stenosis is more frequently associated with multiple anomalies, including chromosomal abnormalities, than other small intestinal atresias/stenoses.
Background:
The aim of this study was to describe the prevalence of esophageal atresia/stenosis and small intestinal atresia/stenosis in Nagano, Japan, together with associated anomalies, prenatal diagnosis and survival.
Methods:
A population-based cohort study of the prevalence of esophageal atresia/stenosis and small intestinal atresia/stenosis was conducted in Nagano in January 1993-December 2011. The Mann-Whitney test, χ(2) test and Kruskal-Wallis test were used to compare variables. P < 0.05 was considered statistically significant.
Results:
In total, 74 cases of esophageal atresia/stenosis and 87 cases of small intestinal atresia/stenosis (31 duodenal, 56 jejuno-ileal) were identified. Prevalences were 1.97 for esophageal atresia/stenosis and 2.23 for small intestinal atresia/stenosis (0.83 for duodenal atresia/stenosis and 1.49 for jejuno-ileal atresia/stenosis) per 10,000 births, respectively. The prevalence of esophageal atresia/stenosis increased significantly from 1993-2001 to 2002-2011 (relative risk [RR], 1.6), as did the prevalences of duodenal atresia/stenosis (RR, 2.2) and jejuno-ileal atresia/stenosis (RR, 3.1). Chromosomal anomalies, particularly trisomy 21, were seen significantly more often in association with duodenal atresia/stenosis (55%) than with esophageal atresia/stenosis (28%, P < 0.01) or jejuno-ileal atresia/stenosis (2%, P < 0.01). The proportion of patients associated with prenatally diagnosed chromosomal anomaly was higher compared to postnatal diagnosis (P < 0.01) in the esophageal atresia/stenosis group.
Conclusion:
The prevalence of esophageal and small intestinal atresia/stenosis increased significantly from 1993-2001 to 2002-2011. Prenatally diagnosed esophageal atresia/stenosis is associated with multiple anomalies, particularly chromosomal anomalies, compared to other small intestine atresia/stenosis.
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