None listed
Conditions
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
Patients scheduled to undergo inpatient surgery where Patient-Controlled Intravenous Analgesia is indicated post-operatively, who are capable of providing informed consent, understanding how to use the PCIA device and activating the PCIA device.
Exclusion criteria
American Society of Anesthesiologists (ASA) Physical status 4 or 5, renal or hepatic failure, obstructive sleep apnoea requiring treatment, allergy to morphine, alfentanil or fentanyl, history of opioid abuse or chronic opioid use, inability to use the PCIA device, inability to complete the questionnaire, use of a continuous regional analgesic technique, previous participation in this trial.