Post herpetic neuralgia after acyclovir treatment

Post Herpetic Neuralgia (PHN) is often diagnosed when pain persists in a dermatomal pattern weeks after the herpes zoster vesicular eruption has healed. There is a definite tendency for PHN to improve with time. There is no way of predicting who will recover. However, some reported that as many as 4...

Full description

Bibliographic Details
Main Authors: Mohamed, Abdul Hadi, Awang, Mohd Shukrimi, Abdullah, Nor Zamzila, Mat Nor, Mohd. Basri
Format: Conference or Workshop Item
Language:English
Published: International Islamic University Malaysia 2016
Subjects:
Online Access:http://irep.iium.edu.my/55190/
http://irep.iium.edu.my/55190/
http://irep.iium.edu.my/55190/1/Post%20herpetic%20neuralgia%20after%20acyclovir%20treatment%20MRS%202016.pdf
Description
Summary:Post Herpetic Neuralgia (PHN) is often diagnosed when pain persists in a dermatomal pattern weeks after the herpes zoster vesicular eruption has healed. There is a definite tendency for PHN to improve with time. There is no way of predicting who will recover. However, some reported that as many as 40% of patients with PHN will continue to have long-term problems because of incomplete or no pain despite the best treatments given. This retrospective series discussed the outcome of treatment of 3 patients with PHN, using acyclovir, Gabapentin and analgesics. Patients were treated by a single pain specialist in a conventional community pain practice. Therapies were given twice-monthly for 1-2 months, then less frequently until pain relief was optimized. Patients received a median of 7 treatments (range 4 - 11). Median baseline allodynia levels were reduced from 9 /10 (range 8 to 10) to 0/10 (range 0 to 6), intermittent shooting pain from 9/10 (range 8 to 10) to 0/10 (range 0 to 6). 1 of 3 patients (30%) was able to be weaned off pain medications. These data showed that there is variation in the response to treatment in patients suffering from PHN. The response ranged from a complete cure to unresponsive at all to the treatment given. There is no way of predicting who will fully recover.