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Support Care Cancer · Nov 2012
Comparative StudyImpact of oxaliplatin-induced neuropathy: a patient perspective.
- Barbara K Bennett, Susanna B Park, Cindy S-Y Lin, Michael L Friedlander, Matthew C Kiernan, and David Goldstein.
- NSW Cancer Survivors Centre, University of New South Wales, Sydney, NSW, Australia. b.bennett@unsw.edu.au
- Support Care Cancer. 2012 Nov 1; 20 (11): 2959-67.
IntroductionDose-limiting neurotoxicity is a major side effect of oxaliplatin treatment, producing initial acute neurotoxicity and chronic neuropathy with increasing exposure. The improvement in survival for patients with early-stage colorectal cancer treated with oxaliplatin has highlighted the need for valid and reliable assessment of peripheral neuropathy.ObjectivesThe objective of this paper was to explore neuropathic symptoms in oxaliplatin-treated patients as assessed using different methods.MethodsConsecutive symptomatic patients reporting peripheral neuropathy after oxaliplatin chemotherapy for colorectal cancer were interviewed using a semi-structured clinical interview. Neurotoxicity was also assessed using the National Cancer Institute Common Toxicity Criteria scale (clinician-rated), patient 'self-report' questionnaires (PNQ), nerve conduction and clinical assessment.ResultsTwenty patients were assessed, 12.6 ± 2.8 months after treatment cessation (mean cumulative oxaliplatin dose, 789 mg/m(2)). In 40% of patients, neurotoxicity necessitated early cessation of treatment. Only 10% of patients were designated by clinicians with severe neurotoxicity, whilst, in contrast, patient interviews and self-report questionnaires described significant physical limitations due to neuropathic symptoms in 60% of patients. The majority (85%) of patients had objective evidence of sensory neuropathy with nerve conduction studies. Reports from clinical interviews were strongly correlated with patient self-assessment (Pearson coefficient = 0.790, p < 0.0005).ConclusionGiven the discrepancies in symptom prevalence highlighted by these findings, the monitoring of oxaliplatin-induced neurotoxicity would benefit from more informative clinical assessment, with inclusion of patient-reported outcome measures. Such an approach would be beneficial in a clinical trial setting to monitor the efficacy of interventions and in prospective studies of survivorship to determine the true burden of peripheral neuropathy in oxaliplatin-treated patients.
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