Complex regional pain syndrome secondary to brachial plexus injury is often severe, debilitating and difficult to manage. Percuteneous radiofrequency
sympathectomy is a relatively new technique, which has shown promising results in various
chronic pain disorders. We present four consecutive patients with
complex regional pain syndrome secondary to brachial plexus injury for more than 6 months duration, who had undergone percutaneous T2 and T3 radiofrequency
sympathectomy after a diagnostic block. All four patients experienced minimal
pain relief with
conservative treatment and stellate ganglion blockade. An acceptable 6 month
pain relief was achieved in all 4 patients where
pain score remained less than 50% than that of initial score and all oral
analgesics were able to be tapered down. There were no complications attributed to this procedure were reported. From this case series, percutaneous T2 and T3 radiofrequency
sympathectomy might play a significant role in multi-modal approach of CRPS management.