Testing carrier status in siblings of patients with cystic fibrosis

Area of Science:

• Medical Genetics
• Pediatric Healthcare
• Genetic Counseling

Background:

• Cystic fibrosis (CF) is a genetic disorder requiring lifelong care.
• Genetic testing for CF carrier status in healthy siblings is a complex ethical issue.
• Parental desire for genetic information about their children is a significant factor.

Purpose of the Study:

• To survey parents of CF patients and regional genetics units regarding testing healthy siblings for CF carrier status.
• To understand differing perspectives on the right to genetic information and disclosure.
• To identify current practices in genetics units concerning sibling carrier testing.

Main Methods:

• A survey was administered to 114 parents of patients at a CF clinic.
• 27 regional genetics units were also surveyed regarding their policies and views.
• Data collected focused on views on childhood carrier testing and information disclosure.

Main Results:

• A majority of parents desired to know their child's carrier status and believed it was their right.
• Nearly all parents intended to inform their children if they were carriers.
• However, 37% of genetics units never tested siblings, and 40% denied parents' right to this knowledge.
• 60% of units would withhold this genetic information from parents.

Conclusions:

• Significant discordance exists between parental desires and genetics units' practices regarding sibling carrier testing for cystic fibrosis.
• Ethical considerations surrounding genetic information access and disclosure for minors require further attention.
• Clinical guidelines may need to address the balance between parental rights and professional judgment in genetic testing decisions.