Abstract: The purpose of this paper was to observe the effectiveness of continuous intravenous narcotic infusions as a means of pain relief in the first 48 hours post operatively. 12 patients who had experienced major thoracic or abdominal surgery participated in the study. Pain was assessed at rest and on activity on visual analogues at 5 specific times daily for up to 48 hours post operatively. Data was also collected from a structured interview within the first 48 hours and a retrospective interview when the infusion was discontinued. Results indicated- 1. Very little correlation of changes in pain relief dose to the assessment of pain intensity. 2. Documentation and assessment was not always thoroughly completed. 3. Inadequate treatment of pain post operatively was evident especially on activity. It should be emphasised that pain management could be improved through a focus in interdisciplinary consultation, continuing in service education on pain management and accountability in procedure.