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Probable autosomal dominant infantile pyloric stenosis in a large kindred
Insights
Pyloric stenosis, a condition causing projectile vomiting in infants, can exceptionally be inherited as an autosomal dominant trait. This family
Area of Science:
- Medical Genetics
- Pediatric Surgery
Background:
- Pyloric stenosis is a congenital condition affecting infants.
- Genetic factors are known to contribute to pyloric stenosis.
- Autosomal dominant inheritance is rare for this condition.
Observation:
- A family with multiple affected individuals across generations was studied.
- Affected members experienced projectile vomiting and required surgery for pyloric stenosis.
- The family originated from the Jewish community in Georgia, U.S.S.R.
Findings:
- The family's pedigree suggests an autosomal dominant inheritance pattern for pyloric stenosis.
- The male:female sex ratio was observed to be 1:1 for operated cases and 4:5 for those with a history of projectile vomiting.
- No skipping of generations was noted in the affected family members.
Implications:
- This case exceptionally demonstrates autosomal dominant inheritance of pyloric stenosis.
- Understanding rare inheritance patterns is crucial for genetic counseling and diagnosis.
- Further research may elucidate the specific genetic mechanisms involved.
Abstract:
The proposita was operated on in this hospital in 1980 for pyloric stenosis, at the age of 13 days, after vomiting had started 5 days previously, and the diagnosis had been confirmed on radiological investigation. Her older sister and two male cousins of the father had the same operations in Israel in infancy. The other nine affected individuals in the family were known to have had projectile vomiting for several months in infancy, and two of them died in infancy. They were all born in the Jewish community in Georgia, U.S.S.R. The male:female sex ratio was 2:2 for the operated cases, and 4:5 for those projectile vomiting history. There was no skipping of a generation. This family indicates that pyloric stenosis can exceptionally be inherited as a simple autosomal dominant trait.