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Nonrandom association of atrioventricular canal and del (8p) syndrome
B Marino1, A Reale, A Giannotti
1Department of Pediatric Cardiology and Genetics, Bambino Gesù Hospital, Rome, Italy.
Insights
Partial deletion of chromosome 8p is frequently associated with atrioventricular canal defects in children. This finding suggests a specific genetic link between chromosome 8p deletions and congenital heart anomalies.
Area of Science:
- Genetics
- Cardiology
- Developmental Biology
Background:
- Chromosome 8p deletion syndrome is a rare genetic disorder.
- Congenital heart defects (CHDs) are common in individuals with chromosomal abnormalities.
- Atrioventricular canal (AVC) is a specific type of CHD requiring early diagnosis and management.
Observation:
- A patient with partial deletion of chromosome 8p (del(8p)) presented with an atrioventricular canal.
- A review of previously reported cases revealed that 4 out of 7 children with del(8p) and complete cardiac assessment had AVC.
Findings:
- The prevalence of atrioventricular canal in children with del(8p) is significantly high.
- This high prevalence suggests a nonrandom association between del(8p) and AVC.
Implications:
- The findings highlight the importance of cardiac screening in infants diagnosed with del(8p).
- Further research into the genetic mechanisms underlying this association may reveal new insights into heart development.
- Early identification of AVC in del(8p) patients can lead to timely intervention and improved outcomes.
Abstract:
We describe a patient with partial deletion of the short arm of chromosome 8 with an atrioventricular canal. This type of congenital heart defect was found in 4 of the 7 previously reported del (8p) children with a congenital heart defect in which the cardiac assessment was complete. The prevalence of an atrioventricular canal in this aneuploidy is high and suggests a nonrandom association of the 2 anomalies.