Systematic preoperative tests prescription in elective surgery: it's high time to appraise!

The prescription of preoperative complementary tests aims to decrease morbidity and mortality associated to the perioperative period.

To assess the practice and the financial cost of the systematic prescription of preoperative tests.

This was a retrospective study including all patients older than three years, scheduled for elective surgery from November 2018 to January 2019. Two attendings analyzed the data collected during the pre-anesthetic assessment and evaluated the usefulness of the ordered preoperative tests. The overall cost of prescribed preoperative tests and the cost generated by inappropriate prescriptions were also estimated.

This study included 1006 patients. The average age was 46.9 ± 22.05 years old. Five hundred and twenty three of them (51.98%) have no medical history. Among the planned procedures, 6.46% had an intermediate or major bleeding risk. Preoperative prescriptions were ordered by surgeons in 99% of cases. Prescriptions were justifiable in only 9.42% of cases. Abnormal findings were noted in 4.98% of the patients. The total cost was almost 80992 Dinars (≈ 24543 €). Complying the guidelines would save 70245 Dinars (≈ 21286 €) during the three months' study.

The routine prescription of preoperative complementary tests results in a significant additional economic cost. Developing national guidelines would change this attitude of unnecessary prescription.