Related Experiment Videos
Infantile hypertrophic pyloric stenosis in Belfast, 1957-1969
Insights
Infantile pyloric stenosis, a condition causing vomiting in infants, was studied in Belfast. Incidence decreased over time, with more cases in winter and links to higher social class and firstborns.
Area of Science:
- Pediatrics
- Gastroenterology
- Epidemiology
Background:
- Hypertrophic pyloric stenosis (HPS) is a common cause of infantile vomiting.
- Previous studies have explored risk factors, but comprehensive reviews are ongoing.
Purpose of the Study:
- To analyze the incidence, clinical presentation, and associated factors of HPS in infants born in Belfast between 1957-1969.
- To evaluate trends in HPS incidence over a 13-year period.
Main Methods:
- Retrospective review of infant cases diagnosed with HPS.
- Analysis of demographic data, including social class, feeding method, birth order, and parental age.
- Examination of clinical features, symptom onset, tumor size, and co-occurring conditions.
Main Results:
- A decline in HPS incidence was observed during the study period.
- Infants with HPS showed a bias towards higher social classes, breastfeeding, and primogeniture.
- Vomiting onset occurred around 22 days; tumor size correlated with patient size, not age.
- Associated conditions included haematemesis, melaena, jaundice, inguinal hernia, and phenylketonuria.
Conclusions:
- The term 'congenital' may be inappropriate for HPS given the symptom onset.
- Seasonal variation (winter births) and demographic factors are associated with HPS.
- Starvation may impact hepatic glucuronyl transferase activity, leading to jaundice in HPS patients.
Abstract:
Infants with hypertrophic pyloric stenosis born in Belfast during the 13 years 1957-1969 have been reviewed. Their distribution shows a bias towards higher social classes, breast feeding, and primogeniture. Obstetric factors and parental ages seem to be of no importance. More affected infants were born during winter months than would be expected. The overall incidence of infantile pyloric stenosis in this community has fallen during the period under review. Clinically, the patients started vomiting at a mean age of 22 days and it is recommended that the condition should not be called 'congenital'. The size of the tumour is mainly determined by the size of the patient, rather than by his age or duration of symptoms. Attention is drawn to the occurrence of haematemesis in 17-5% and melaena in 2-9% of infants. Jaundice occurred in 1-8% of patients in this series, and is attributed to the adverse effect of starvation on hepatic glucuronyl transferase activity. Other conditions noted in these patients included inguinal hernia, partial thoracic stomach, and phenylketonuria. Subsequent growth and development were in the anticipated range.