“…The development of APS in the United Kingdom (UK) began in the 1990's following an influential report by the Royal College of Surgeons and the College of Anaesthetists (1990), which identified low standards of care for postoperative pain and recommended the development of multidisciplinary teams to assume responsibility for pain management, staff training, audit and research. Since then, the number of APS has steadily increased (McDonnell et al, 2003, Nagi, 2004, Powell et al, 2004. While the remit of these pain services was initially to improve acute post-operative pain, in some areas this has expanded to include the management of other pain types such as cancer pain and chronic pain (Powell et al, 2004, Counsell, 2008.…”