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  Vol. 46 No. 5, May 1989 TABLE OF CONTENTS
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Chronic myopathy with a partial deficiency of the carnitine palmityltransferase enzyme

R. I. Kieval, A. Sotrel and M. E. Weinblatt
Department of Medicine, Beth Israel Hospital, Boston, MA.

To date, chronic myopathy has not been reported (to our knowledge) to occur in carnitine palmityltransferase (CPT) deficiency, a disorder of muscle lipid metabolism. We describe two patients with CPT deficiency: a mother, who had a partial CPT deficiency associated with fixed proximal weakness but without rhabdomyolysis, and her son, who had a complete CPT deficiency (95% reduction in enzyme activity) and who suffered from classic attacks of exercise-induced rhabdomyolysis but had normal strength on recovery. Careful examination of family members of patients with complete CPT deficiency is suggested in order to identify clinically affected heterozygotes.





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