Neonatal Presentations of Metabolic Disorders

Area of Science:

• Neonatal Medicine
• Metabolic Disorders
• Clinical Genetics

Background:

• Neonatal metabolic disorders affect multiple organ systems, presenting diagnostic challenges.
• Presentations range from acute crises (hyperammonemia, seizures) to chronic issues (cholestasis, skeletal abnormalities).
• Early detection and treatment are vital for improving outcomes in affected newborns.

Purpose of the Study:

• To review classic and uncommon clinical presentations of neonatal metabolic disorders.
• To emphasize the importance of maintaining a high index of suspicion for undiagnosed critically ill neonates.
• To highlight advanced genetic sequencing as a tool for rapid diagnosis.

Main Methods:

• Literature review of clinical presentations of neonatal metabolic disorders.
• Discussion of diagnostic approaches, including newborn screening and genetic testing.
• Emphasis on whole exome sequencing (WES) and whole genome sequencing (WGS) for complex cases.

Main Results:

• Metabolic disorders manifest diversely in neonates, requiring broad clinical awareness.
• Newborn screening is effective but does not exclude all metabolic conditions.
• Whole exome sequencing and whole genome sequencing offer powerful diagnostic capabilities for critically ill neonates.

Conclusions:

• Improved recognition of diverse clinical signs is essential for diagnosing neonatal metabolic disorders.
• Genetic sequencing technologies are invaluable for rapid and accurate diagnosis, enabling timely therapeutic interventions.
• A high index of suspicion remains critical for neonates with unexplained critical illness.