Holoprosencephaly: a case presentation

Area of Science:

• Medical Genetics
• Developmental Biology
• Pediatric Nursing

Background:

• Holoprosencephaly (HPE) is a rare congenital disorder characterized by incomplete separation of the forebrain.
• It affects facial development and brain structure, with severity ranging from mild to lethal.
• The genetic basis of HPE is complex, involving multiple genes and etiological factors.

Observation:

• Approximately 20% of individuals with HPE present with normal brain development and minor facial anomalies.
• These individuals may reach adulthood and have the potential to reproduce.
• Severely affected HPE cases are often fatal, necessitating early diagnosis and management.

Findings:

• Adults with milder forms of HPE can transmit the genetic defect to their offspring, potentially resulting in severely affected infants.
• Accurate patient health histories are crucial for identifying at-risk individuals and facilitating genetic counseling referrals.
• Neonatal Intensive Care Unit (NICU) nurses play a vital role in recognizing severe HPE presentations.

Implications:

• Early identification and genetic counseling are essential for families affected by holoprosencephaly to make informed reproductive decisions.
• Healthcare providers, particularly obstetric and NICU nurses, require awareness of HPE for timely case finding and appropriate patient support.
• Understanding the genetic transmission patterns of HPE is critical for long-term family planning and genetic screening strategies.