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. 2003 Oct;74(10):1412–1416. doi: 10.1136/jnnp.74.10.1412

Early cognitive decline in Creutzfeldt-Jakob disease associated with human growth hormone treatment

R Cordery 1, M Hall 1, L Cipolotti 1, S Al-Sarraj 1, D O'Donovan 1, L Davidson 1, P Adlard 1, M Rossor 1
PMCID: PMC1757404  PMID: 14570836

Abstract

Background: Most cases of Creutzfeldt-Jakob disease (CJD) in recipients of human cadaveric growth hormone present with a cerebellar syndrome. Dementia is thought to occur late and as a minor feature of the illness. However, neuropsychology data published on these cases are largely qualitative and anecdotal. The first published case does include a neuropsychological assessment seven months after the onset of a cerebellar syndrome, showing evidence of intellectual decline. Subsequent reports hint that cognitive problems may be present in the initial stages of the illness.

Objective: To assess early cognition in Creutzfeldt-Jakob disease in recipients of pituitary derived human growth hormone.

Methods: Detailed neuropsychology assessment is reported at referral (mean 4.5 months from the onset of symptoms; range 4 to 6 months) in five patients with histologically proven human growth hormone derived CJD.

Results: All cases presented with a cerebellar syndrome and only one had noticed mild memory problems. On formal testing, however, four had demonstrable mild intellectual decline, as measured on the WAIS-R. One case showed selective visual memory impairment and frontal executive dysfunction.

Conclusions: These findings suggest that, although not the presenting feature, mild cognitive decline may be evident in the early stages of CJD associated with human cadaveric growth hormone treatment.

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Selected References

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