Pregnancy with cytochrome oxidase-deficient mitochondrial myopathy
P S Soccio1, W P Phillips, P Bonisteel
1Department of Obstetrics and Gynecology, Memorial University of Newfoundland, 300 Prince Phillip Drive, St. John's, Newfoundland A1B 3V6, Canada.
Background:
Cytochrome oxidase-deficient mitochondrial myopathies represent a heterogeneous group of muscle disorders. Physical stress can cause life-threatening risks related to rhabdomyolysis or respiratory compromise.
Case:
A 21-year-old primigravida with cytochrome C oxidase-deficient mitochondrial myopathy who presented for obstetric care at 8 weeks' gestation complained of muscle fatigue and spasm after exertion. The increased metabolic demands of pregnancy led to worsening pain, muscle fatigue, and ultimately complete immobility.
Conclusion:
Cytochrome oxidase-deficient mitochondrial myopathies are rare but serious complications of pregnancy.
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