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Perinatal risk factors for infantile hypertrophic pyloric stenosis: A systematic review and meta-analysis
Yazan Y Obaid1, Ahmad A Toubasi1, Farah H Albustanji1
1Faculty of Medicine, University of Jordan, Amman, Jordan, 11962.
Insights
Infantile hypertrophic pyloric stenosis (IHPS) is linked to male sex, maternal smoking, and bottle-feeding. Further prospective studies are needed to confirm these perinatal risk factors for IHPS.
Area of Science:
- Pediatric Surgery
- Neonatal Research
- Epidemiology
Background:
- Infantile hypertrophic pyloric stenosis (IHPS) is a common pediatric surgical condition.
- While diagnosis and treatment are established, perinatal risk factors require further investigation.
Approach:
- Systematic review and meta-analysis of case-control and cohort studies.
- Searched Cochrane, Google Scholar, PubMed, and Scopus databases.
- Assessed study quality using the Newcastle-Ottawa Scale (NOS).
Key Points:
- Significant associations found between IHPS and male sex, maternal smoking, bottle-feeding, firstborn status, African ethnicity, and cesarean section.
- No significant associations identified with multiple gestations, preterm labor, summer birth, or small for gestational age (SGA).
Conclusions:
- Male sex, bottle feeding, maternal smoking, and African ethnicity are significantly associated with IHPS risk.
- Most included studies were retrospective, highlighting the need for future prospective research to validate these findings.
Background:
Infantile hypertrophic pyloric stenosis (IHPS) is one of the most common diseases that require surgical intervention amongst the paediatric population. Although the treatment and the diagnosis of pyloric stenosis are well established, the perinatal risk factors associated with it still need further investigation.
Methods:
We searched the following databases: Cochrane, Google Scholar, PubMed, and Scopus. Studies were included if they were case-control or cohort in design and studied the perinatal risk factors associated with IHPS. The quality of the included studies was assessed using the Newcastle-Ottawa scale (NOS).
Results:
Twenty-one articles were included in this meta-analysis, including 18,104,753 participants. Our analysis showed a significant association between IHPS and male sex (RR=2.71, 95% CI:1.93-3.78), maternal smoking (RR=1.75, 95% CI: 1.54 - 2.00), bottle-feeding (RR=1.68, 95% CI: 1.42 - 1.98), being first born (RR=1.23, 95% CI:1.07-1.40), African ethnicity (RR=0.51, 95% CI: 0.35-0.75), and cesarean section (RR=1.57, 95% CI: 1.49-1.66). On the contrary, there was no significant association between IHPS and multiple gestations, preterm labour, being born in summer, and small for gestational age (SGA).
Conclusion:
In conclusion, our analysis showed that male sex, bottle feeding, maternal smoking and African ethnicity were significantly associated with the risk of IHPS. However, most of the included articles were retrospective in design which necessitates conducting future prospective well-designed studies to further investigate the risk factors of IHPS.
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