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Impact of analgesic drug-use guidelines for the management of postoperative pain: a drug utilization study.

OBJECTIVE
Postoperative pain is inadequately treated in many surgical settings. The present study evaluates the impact of analgesic drug-use guidelines in the management of postoperative pain.


PATIENTS AND METHODS
A prospective drug utilization study was carried out in 3 stages in a traumatology, orthopedic and rehabilitation tertiary hospital. The first stage, aimed at describing the patterns of use of analgesic strategies in the management of postoperative pain, identified habits, practices and misconceptions regarding this therapeutic area. After this, an ad hoc representative institutional working group agreed on analgesic drug-use guidelines for the management of postoperative pain. These were then published, presented and discussed with surgeons and nurses. After the guidelines had been implemented, their impact was evaluated in terms of the analgesics used, their dosage and their administration schedule.


RESULTS
101 patients were studied before the implementation of the guidelines and 108 patients after. Patients receiving opiate analgesics during the immediate postoperative period increased from 70-94% (p < 0.05). First-choice analgesics used according to the guidelines increased from 40-89% of choices after the implementation of the guidelines (p < 0.05). Administration of analgesics at regular predetermined intervals increased from 45-58% of medical orders, but this increase was not statistically significant (p = 0.07). Prescription of analgesics at adequate doses increased from 67-87% (p < 0.05).


CONCLUSION
Education on the treatment of postoperative pain is made up of several messages including the drug of choice and dose regimen. Prescribers seemed more receptive to a change in drug rather than issues related to the correct dose regimen. More research is needed to assess how educational activities can improve the management of postoperative pain.