Is Serratus Posterior Superior Intercostal Plane Block a Novel Indication for the Management of Pain in Thoracic Acute Herpes Zoster? A Case Report.

Postherpetic neuralgia results from varicella-zoster virus reactivation post-chickenpox infection, manifesting as persistent and severe pain lasting a minimum of 3-mo post-herpes zoster onset. Traditional postherpetic neuralgia management comprises antiviral, analgesic medications, corticosteroids, and various agents. Ultrasound-guided nerve blocks have recently emerged as a promising postherpetic neuralgia treatment. In a case involving a 58-year-old man with severe thoracic herpes zoster lesions, the serratus posterior superior intercostal plane block was employed under ultrasound guidance, significantly reducing pain scores and enhancing quality of recovery. This study underscores serratus posterior superior intercostal plane block's secure, effective role in managing thoracic herpes zoster, and mitigating postherpetic neuralgia risk. This case report represents the pioneering application of serratus posterior superior intercostal plane block for postherpetic neuralgia, offering a promising avenue for relieving patients suffering from this condition.