Table 3.

Recommended Evaluations Following Initial Diagnosis in Individuals with Mitochondrial Membrane Protein-Associated Neurodegeneration

System/ConcernEvaluationComment
Neurologic For children: pediatric neurology assessmentIt is important to establish care & work for continuity as disease is slowly progressive.
For adults: referral to movement disorders neurologistProgressive parkinsonism is more common in adult-onset MPAN.
Referral to neuromuscular clinic (OT/PT / rehab specialist)To assess gross motor & fine motor skills, gait, ambulation & need for adaptive devices, PT/OT
Cognitive decline & neuropsychiatric abnormalities Referral to psychiatrist, psychologist, or neuropsychologistTo assess cognitive dysfunction & neuropsychiatric involvement
For school-age children: developmental assessment
  • To incl motor, adaptive, cognitive, & speech/language eval
  • Eval for early intervention / special education
Optic atrophy Complete eye examTo incl:
  • BCVA
  • Refractive error
  • Color vision testing
  • Slit lamp exam
  • Dilated funduscopic exam
Dysarthria Speech/language evalFor those w/severe dysarthria: assess need for means of alternative communication.
Dysphagia For those w/frequent choking, severe dysphagia, or significant weight loss: assess nutritional status & aspiration risk.Consider involving a gastroenterology/nutrition/feeding team.
Genetic
counseling
By genetics professionals 1To inform patients & families re nature, MOI, & implications of MPAN to facilitate medical & personal decision making
Family support/
resources
Assess need for:
  • Community resources & support/advocacy organizations (e.g., Parent to Parent);
  • Social work involvement for parental support;
  • Home nursing referral.

BCVA = best-corrected Snellen visual acuity; MOI = mode of inheritance; OT = occupational therapy; PT = physical therapy

1.

Medical geneticist, certified genetic counselor, or certified advanced genetic nurse

From: Mitochondrial Membrane Protein-Associated Neurodegeneration

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