• P Lierz, K Schroegendorfer, S Choi, P Felleiter, and H G Kress.
• Department of Anaesthesiology and General Intensive Care Medicine, University of Vienna, Austria. peter.lierz@univie.ac.at
• Pain. 1998 Nov 1;78(2):135-7.

AbstractA 39-year-old patient developed phantom pain after amputation of both upper arms following a burn injury. The pain did not respond to naproxen, morphine, carbamazepine, amitriptyline, calcitonin or transcutaneous electrical nerve stimulation (TENS). At the 39th post-operative day an axillary catheter was placed on the right side, as well as an interscalene catheter on the left. Ropivacaine 0.2% was infused, starting with a rate of 4 ml/h, that was increased to 6 ml/h during the subsequent 6 days. Within 20 min of catheter placement complete pain relief was achieved. The patient did not need any other analgesics and remained painfree for 7 months. Neither motor block, nor any other side effects occurred during the infusion of ropivacaine 0.2%. Thus, the patient not only received analgesia, but also got an effective treatment of established phantom pain. A similar approach with bupivacaine may not have been feasible, because of the possibility of toxic side effects. Ropivacaine is a long-acting local anaesthetic which is less toxic than bupivacaine and has the additional advantage of producing less motor-blockade in the concentration used, so the patient was able to move actively without experiencing any pain.

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