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Postgrad Med J 90:222-227 doi:10.1136/postgradmedj-2013-132215
  • Review

Chronic pain after surgery: pathophysiology, risk factors and prevention

Editor's Choice
  1. Natasha Curran2
  1. 1Centre for Anaesthesia, University College London Hospital, London, UK
  2. 2Pain Management Centre, National Hospital for Neurology and Neurosurgery, London, UK
  1. Correspondence to Dr Danielle Reddi, Centre for Anaesthesia, University College London Hospital, London NW1 2BU, UK; daniellereddi{at}gmail.com
  • Received 24 June 2013
  • Revised 10 December 2013
  • Accepted 22 January 2014
  • Published Online First 26 February 2014

Abstract

Interest in chronic pain after surgery has grown since the finding that more than a fifth of patients attending chronic pain clinics cite surgery as the cause for their chronic pain. The problem is not limited to major surgery; even common minor procedures such as hernia repair have a significant risk of chronic pain. Surgical technique can influence the development of chronic postsurgical pain (CPSP) and techniques to minimise nerve injury should be used where possible. Central nervous system changes contribute to the development of persistent pain following surgical trauma and nerve injury. Pharmacological agents that interrupt the mechanisms contributing to central sensitisation may be helpful in reducing the incidence of CPSP. Psychosocial factors are also important in the development of chronic pain and should be addressed as part of a holistic approach to perioperative care.


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