• Laura S Gilchrist and Lynn Tanner.
• Hematology and Oncology Program, Children's Hospitals and Clinics of Minnesota, Minneapolis, MN 55404, USA. lsgilchrist@stkate.edu
• Support Care Cancer. 2013 Mar 1; 21 (3): 847-56.

BackgroundNeurotoxicity is a common side-effect of cancer treatment, but no scales have been validated for the pediatric population. The objective of this study was to test the reliability and validity of the pediatric modified-Total Neuropathy Scale (ped-mTNS) to measure chemotherapy-induced peripheral neuropathy in school-aged children.MethodsForty-one subjects aged 5-18 years undergoing chemotherapy with vincristine or cisplatin and 41 age- and gender-matched controls completed study measures. Subjects were tested with the ped-mTNS at a specified time during treatment. Standardized measures of balance and hand function were completed concurrently. Internal consistency of the ped-mTNS was evaluated using Chronbach's alpha. Validity was tested by comparing case and control ped-mTNS scores as well as testing the hypothesis that ped-mTNS scores would be associated with scores on tests of balance and manual dexterity. Inter-rater and test-retest reliability were each assessed in a subset of 10 subjects.ResultsTwenty-three subjects with acute lymphoblastic leukemia, six with lymphoma, and 12 with solid tumors completed measures along with 41 age- and gender-matched controls. Internal consistency was acceptable with a Chronbach's alpha of 0.76. Children undergoing treatment for cancer had significantly worse scores on the ped-mTNS compared to controls (subjects, 8.7 ± 4.2; controls, 1.4 ± 0.9; p < 0.001). As hypothesized, scores on the ped-mTNS were associated with measures of balance and manual dexterity. Inter-rater and test-retest reliability was acceptable (intraclass correlation coefficients >0.9 each).ConclusionsThe ped-mTNS is a reliable and valid measure of chemotherapy-induced peripheral neuropathy in school-aged children that is associated with relevant functional limitations.

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