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Medline ® Abstract for Reference 59

of 'Overview of neurologic complications of non-platinum cancer chemotherapy'

Paclitaxel plus carboplatin-induced peripheral neuropathy. A prospective clinical and electrophysiological study in patients suffering from solid malignancies.
Argyriou AA, Polychronopoulos P, Iconomou G, Koutras A, Kalofonos HP, Chroni E
J Neurol. 2005 Dec;252(12):1459-64. Epub 2005 Nov 15.
OBJECTIVE: The current study intended to determine the incidence, severity and reversibility of paclitaxel plus carboplatin (CP)-induced peripheral neuropathy (CPPN) and to describe its clinical and electrophysiological features.
PATIENTS AND METHODS: We prospectively studied 21 adult patients scheduled to be treated with 6 courses of cumulative carboplatin plus paclitaxel (CP) regimens for a non-myeloid malignancy. They were followed-up by neurological examination and electrophysiological study during chemotherapy and 3 months after its discontinuation. The severity of neurotoxicity was assessed by means of a modified peripheral neuropathy (PNP) score.
RESULTS: Evidence of CPPN was recorded in 14 of the 21 patients (66.6 %). The sensory symptoms were present in the lower limbs first and then involved the upper limbs. No statistical significance, concerning the changes from baseline to subsequent mean scores in all motor conduction parameters examined,was revealed. By contrast, comparisons of the mean changes at baseline and each of the follow-up studies showed significant decrease in all sensory action potentials examined. The mean PNP scores for patients that manifested some grade of neurotoxicity were 17.9 +/- 9.8. The followup data 3 months after the discontinuation of chemotherapy showed that the CP-induced neuropathy was at least partially reversed.
CONCLUSIONS: CP-induced neuropathy was symmetrical, distal and predominantly sensory in character, though minor to moderate motor signs were only evident in severely affected patients. Reversibility of CP-induced neuropathy was partially observed after the suspension of chemotherapy.
Dept. of Neurology, Laboratory of Clinical Neurophysiology, University of Patras Medical School, P.O. Box 1045, Rion, Patras, Greece. andargyriou@yahoo.gr