ABSTRACT
Indications for or nerve blocks Pain should be localized or unilateral. Many patients with cancer have more than one pain: in this case, the pain site that is considered for nerve block should be considered to be a major problem in its own right. Visceral and somatic pain is more appropriately treated with nerve blocks than neuropathic pain. Opioids should have been tried and found wanting, either because of failure to achieve analgesia or because of unacceptable side-effects.
