[Effective treatment of acute pain and related symptoms in elderly with herpes zoster].

Background: The incidence of herpes zoster increases with age. Immediate pain relief is required for prevention of postherpetic neuralgia (PHN) and also its related symptoms that worsen the general condition because acute herpetic pain often interferes with sleep, mood, and general activities in elderly patients. Nerve block is useful to relief acute pain and recommended for prevention of PHN. Tricyclic antidepressant drugs have antinoticeptive effect in acute pain in experimental models, in addition to its antidepressant effect.

Methods: Forty elderly patients with herpes zoster within 3 months after the onset underwent nerve blocks and received tricyclic antidepressant drugs. We assessed the effect of treatments and adverse effects.

Results: No significant adverse effects were found in elderly patients who had received nerve blocks and/or tricyclic antidepressant drugs. Alleviation of acute pain was obtained in more than 80% of patients, and in all patients depressive state and/or disturbance of the general condition were significantly improved.

Conclusions: With careful technique and assessment of patients, both nerve block and tricyclic antidepressant drugs were beneficial and safe treatments in elderly patients with herpes zoster.