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Fetal mortality and cleft lip with or without cleft palate
Clinical Genetics
|January 1, 1983
Summary
Fetal mortality is higher in families with bilateral cleft lip and palate (CL(P)) than unilateral CL(P). This suggests a genetic liability influencing both clefting and fetal death.
Area of Science:
- Medical Genetics
- Developmental Biology
- Reproductive Health
Background:
- Cleft lip with or without cleft palate (CL(P)) is a common birth defect.
- Understanding the genetic and environmental factors influencing CL(P) and associated outcomes is crucial.
Purpose of the Study:
- To investigate the relationship between CL(P) severity and fetal mortality in affected sibships.
- To explore potential sex-based differences in this relationship.
Main Methods:
- Analysis of fetal mortality data from 406 probands with CL(P).
- Comparison of fetal mortality rates between sibships with unilateral versus bilateral CL(P).
- Examination of sex-specific differences in fetal mortality rates.
Main Results:
- Fetal mortality incidence is significantly higher in sibships of probands with bilateral CL(P) compared to unilateral CL(P).
- A pronounced difference in fetal mortality was observed between male probands with unilateral CL(P) and female probands with bilateral CL(P).
Conclusions:
- Findings support a multifactorial, two-threshold model for CL(P).
- Higher genetic liability may predispose to both CL(P) and fetal mortality.
- Severity of CL(P) and sex are associated with differing fetal mortality risks.