Mitochondrial disease: a practical approach for primary care physicians.

Area of Science:

• Biochemistry
• Genetics
• Pediatrics

Background:

• Mitochondrial disease encompasses diverse disorders of impaired energy production due to oxidative phosphorylation dysfunction.
• It is the most common neurometabolic disease in childhood, affecting at least 1 in 5000 children.
• Diagnosis is challenging due to variable presentations and lack of specific biomarkers.

Purpose of the Study:

• To improve clinical recognition of mitochondrial disease by primary care providers.
• To empower generalists to initiate baseline diagnostic testing.
• To address the diagnostic challenges posed by the heterogeneity and nonspecific symptoms of mitochondrial disease.

Main Methods:

• Review of clinical presentations and diagnostic approaches for pediatric mitochondrial disease.
• Development of a simplified, standardized approach for primary care physicians.
• Emphasis on early recognition and initiation of diagnostic workup.

Main Results:

• Mitochondrial disease exhibits notorious variability in infant and young child presentation.
• Lack of a reliable, specific biomarker further complicates early screening and diagnosis.
• A standardized approach can facilitate earlier recognition by primary care physicians.

Conclusions:

• Improved familiarity with mitochondrial disease manifestations is crucial for primary care physicians.
• Empowering generalists to initiate baseline testing can expedite diagnosis and management.
• Standardized approaches are needed to manage the growing pediatric population with mitochondrial disease, especially given specialist shortages.