Chemotherapy-related neuropathic symptoms and functional impairment in adult survivors of extracranial solid tumors of childhood: Results from the St. Jude Lifetime Cohort Study
Abstract
Objectives: To ascertain prevalence of peripheral sensory and motor neuropathy, and to evaluate impairments in relation to function. Design: St. Jude Lifetime Cohort Study, a clinical follow-up study designed to evaluate adverse late effects in adult survivors of childhood cancer. Setting: A children's research hospital. Participants: Eligibility required treatment for an extracranial solid malignancy between 1962 and 2002, age ≥18 years, ≥10 years postdiagnosis, and no history of cranial radiation. Survivors (N=531) were included in the evaluation with a median age of 32 years and a median time from diagnosis of 25 years. Interventions: Not applicable. Main Outcome Measures: Primary exposure measures were cumulative doses of vinca-alkaloid and platinum-based chemotherapies. Survivors with scores ≥1 on the sensory subscale of the Modified Total Neuropathy Score were classified with prevalent sensory impairment. Those with sex-specific z scores of ≤-1.3 for dorsiflexion strength were classified with prevalent motor impairment. Participants completed the 6-minute walk test (endurance), the Timed Up & Go test (mobility), and the Sensory Organization Test (balance). Results: The prevalence of sensory and motor impairment was 20% and 17.5%, respectively. Vinca-alkaloid exposure was associated with an increased risk of motor impairment (adjusted odds ratio [OR]=1.66; 95% confidence interval [CI], 1.04-2.64) without evidence for a dose response. Platinum exposure was associated with increased risk of sensory impairment (adjusted OR=1.62; 95% CI,.97-2.72) without evidence of a dose response. Sensory impairment was associated with poor endurance (OR=1.99; 95% CI,.99-4.0) and mobility (OR=1.65; 95% CI,.96-2.83). Conclusions: Vincristine and cisplatin exposure may increase risk for long-term motor and sensory impairment, respectively. Survivors with sensory impairment are at increased risk for functional performance limitations. © 2013 by the American Congress of Rehabilitation Medicine.
Publication Title
Archives of Physical Medicine and Rehabilitation
Recommended Citation
Ness, K., Jones, K., Smith, W., Spunt, S., Wilson, C., Armstrong, G., Srivastava, D., Robison, L., Hudson, M., & Gurney, J. (2013). Chemotherapy-related neuropathic symptoms and functional impairment in adult survivors of extracranial solid tumors of childhood: Results from the St. Jude Lifetime Cohort Study. Archives of Physical Medicine and Rehabilitation, 94 (8), 1451-1457. https://doi.org/10.1016/j.apmr.2013.03.009
