Abstract
Background
Neurotoxicity 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.
Methods
Forty-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.
Results
Twenty-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).
Conclusions
The 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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Acknowledgments
The following individuals were instrumental in the success of this research: MC Hooke RN, PhD; A. Logelin, CRA; K. Ites, PT; and K. Ness PT, PhD. In addition, we would like to thank the patients, families, physicians, and nurses of the hematology/oncology clinic at Children’s Hospitals and Clinics of Minnesota.
Funding source
Pine Tree Foundation, St. Paul MN
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The authors declare the absence of any conflicts of interest in this publication.
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Appendix A
Appendix A
Pediatric-modified total neuropathy scale
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Gilchrist, L.S., Tanner, L. The pediatric-modified total neuropathy score: a reliable and valid measure of chemotherapy-induced peripheral neuropathy in children with non-CNS cancers. Support Care Cancer 21, 847–856 (2013). https://doi.org/10.1007/s00520-012-1591-8
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DOI: https://doi.org/10.1007/s00520-012-1591-8