• Cielito C Reyes-Gibby, Phuong Khang Morrow, Aman Buzdar, and Sanjay Shete.
• Department of Epidemiology, The University of Texas M. D. Anderson Cancer Center, Houston, 77030, USA. creyes@mdanderson.org
• J Pain. 2009 Nov 1;10(11):1146-50.

UnlabelledNeuropathic pain (NP) remains difficult to control for a significant number of patients with cancer. Chemotherapy-induced peripheral neuropathy (CIPN) has been postulated as an initial stage in the development of NP. To assess whether CIPN (defined as National Cancer Institute Common Toxicity Criteria grade 2 or higher) was associated with NP, we conducted a survey of breast cancer patients who had participated in clinical trials of paclitaxel. Of the 430 potential respondents, 240 responded to the survey. Results showed that 64% experienced CIPN during paclitaxel treatment. Follow-up survey data revealed that 27% of those with CIPN were subsequently diagnosed with NP. Logistic regression analyses showed that those who had experienced CIPN were 3 times more likely to develop NP (95% confidence interval = 1.2-7.2; P < .001), which persisted in the multivariate logistic model. In addition, NP patients reported twice as many visits to their health care provider (P = .02) and had taken more prescription (50% vs 19%; P = .001) and over-the-counter medications (62.5% versus 45%; P = .08) for pain than those without NP. The results of this study confirm that CIPN is a predictor of NP, suggesting that survivors treated with paclitaxel should be regularly monitored for NP beyond treatment.PerspectiveThe survival rates of breast cancer patients have steadily improved over recent years; thus, research into symptoms that persist after treatment is important. We found CIPN as a predictor of NP. Understanding the epidemiology of NP in breast cancer patients has high clinical and public health significance.

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