The efficacy and safety of epidural morphine/hydromorphone in the treatment of intractable postherpetic neuralgia: A single-center, double-blinded, randomized controlled, prospective, and non-inferiority study.

Front Pharmacol · 2022 · PMC9763618 · PMID 36561344

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a positive trendno p-value reported

The results in Figure 8 suggest that there is a positive trend between the decrease of VAS and the improvement of QOL and the improvement of GAD-7 and PHQ-9 in this study.

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