17/09/2025
Cri du Chat syndrome
- **Definition**: Cri du Chat syndrome is a genetic disorder caused by the deletion of a portion of chromosome 5.
- **Name Origin**: The name means "cry of the cat" in French, referring to the distinctive high-pitched cry of affected infants.
- **Symptoms**:
- Characteristic cat-like cry in infancy
- Developmental delays
- Intellectual disability
- Facial features: wide-set eyes, a small head (microcephaly), and a flat nasal bridge
- Short stature and low birth weight
- **Diagnosis**: Usually diagnosed through genetic testing, such as karyotyping, to identify chromosome 5 deletions.
- **Prevalence**: Estimated to occur in 1 in 20,000 to 50,000 live births, affecting both genders equally.
- **Management**: There is no cure, but early intervention can help improve developmental outcomes. Therapies may include speech, physical, and occupational therapy.
- **Prognosis**: Varies widely; some individuals can lead relatively independent lives, while others may require lifelong support.
- **Associated Conditions**: Higher risk of certain medical issues, including heart defects, hearing problems, and scoliosis.
- **Genetic Counseling**: Recommended for families, as the syndrome can occur sporadically or be inherited.