ABSTRACT
Infantile hypertrophic pyloric stenosis (IHPS) is a common condition requiring surgical intervention during the first weeks of life. Up to now the exact etiology of IHPS remains unclear and it is probable that several predisposing risk factors would be associated with the condition. Prompted by the observation that some perinatal factors may be involved in IHPS etiology, we evaluated 171 isolated cases referred to the Sicilian Registry of Congenital Anomalies. Our results show that some perinatal factors like sex ratio imbalance and parity are associated with IHPS, but further investigation is needed to clarify the relationship between genes and other factors involved in IHPS etiology. Therefore the presence of these perinatal factors may be accurately evaluated in genetic counseling to provide a perspective of recurrence prevention.
