Reduction of preoperative investigations with the introduction of an anaesthetist-led preoperative assessment clinic

Preoperative investigations, when used to screen for disease not clinically evident, have been shown to be unnecessary. The aim of this study was to r ationalize the ordering of preoperative investigations by introducing guide lines and screening all investigations ordered at a new Day of Surgery Admi ssions clinic. Two hundred and one elective general and ear; nose and throa t (ENT) patients attending this clinic at Sir Charles Gairdner Hospital fro m July to September 1997 were included in a prospective study group. These were compared to a retrospective control group of 168 elective general and ENT surgical patients who had been admitted for surgery during May to July 1996. Patient demographics were similar for both groups. There were also similar proportions of each surgical subtype and degrees of surgical complexity in each group. There were significant reductions in most types of investigatio ns (electrocardiogram, chest X-ray, liver function tests, urea and electrol ytes, full blood examination, coagulation profile) ordered with the Day Of Surgery Admissions clinic intervention. This resulted in an estimated reduc tion of preoperative investigation costs by 38%, It was concluded that the clinic intervention was associated with a reduction in indiscriminate preop erative investigation ordering patterns.