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 ORIGINAL ARTICLE
Year : 2009  |  Volume : 15  |  Issue : 2  |  Page : 132--136

α2δ Modulators for management of compression neuropathic pain: A review of three case series


1 Relief Interventional Pain Clinic, Srinagar, India
2 Department of Anesthesia and Pain, Shere Kashmir Institute of Medical Sciences, Srinagar, India

Correspondence Address:
Tariq A Tramboo
Relief Interventional Pain Clinic, Srinagar
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1075.58459

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Context: The α2δ modulators gabapentin and pregabalin are effective against neuropathic pain. Numerous brands of α2δ modulators are available in India, and are expected to have equivalent clinical effects. They are routinely used for management of neuropathic pain associated with radiculopathy. Aim: To describe clinical outcomes in three series of cases of neuropathic pain treated with three available brands of a2d modulators. Settings and Design: Retrospective analysis of clinical outcomes in patients attending an interventional pain clinic Patients and Methods: One hundred and ninety-four consecutive patients with neuropathic pain secondary to Magnetic Resonance Imaging (MRI)-documented compression radiculopathy received either LYRICA (LYR), a locally available generic brand of pregabalin (PGN), or a locally available generic brand of gabapentin (GBN), respectively. Drug treatment was continued till adequate pain relief was achieved. In each of the three groups, mean pain scores were analyzed at Days 0, 15, 60 and 90, and daytime sedation scores at Days 1, 15, 60 and 90. Statistical Analysis u0 sed: Analysis of variance (ANOVA) followed by pair-wise comparison using two-tailed unpaired t-test (if P value was significant). Results: Mean pain score was significantly lower in the LYR series as compared to the PGN and GBN series at Days 15, 60 and 90. As compared to the PGN and GBN series, a greater proportion of patients in the LYR series could discontinue drug therapy following adequate pain relief, by Day 90. Daytime sedation scores were significantly lower in the LYR series as compared to the PGN and GBN series at Days 1, 15 and 60, and as compared to the PGN series at Day 90. Conclusion: These results indicate the effectiveness of a2d modulators for management of neuropathic pain secondary to compression radiculopathy. The results also suggest a possible therapeutic superiority of LYRICA over locally available generic brands of pregabalin and gabapentin. These findings need to be further examined in randomized, controlled trials.






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