Abstract

The aim of this study was to compare the efficacy of an intercostal nerve block, which has been used for many years in the treatment of postherpetic neuralgia, and the more recent alternative of an erector spinae plane (ESP) block. The records of 39 patients who were treated in the algology department for postherpetic neuralgia between May 1, 2015 and May 1, 2018 were evaluated retrospectively. Patients who received an intercostal nerve block constituted Group 1 and those who received an ESP block were categorized as Group 2. The change in numeric rating scale (NRS) and Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) scores in the short term and in the long term were the primary results of the study. The NRS, LANSS, and sleep interference scale (SIS) scores of the patients in Group 1 and Group 2 were found to be significantly lower at the 24th hour, week 4, and week 12 compared with the values obtained before block application. In Group 1, the scores recorded at week 4 and week 12 were significantly higher than the 24th hour values, whereas no difference was observed between these results in Group 2. There was no significant difference between the groups in the week 4 and week 12 scores. Similarly, no significant difference was observed in the NRS, LANSS, or SIS scores before the block application or at the 24th hour. However, the scores at week 4 and week 12 were significantly lower in Group 2 compared with Group 1. The results indicated that an ESP block significantly decreased neuropathic pain symptoms and the need for additional treatment in postherpetic neuralgia treatment in the long term.

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