Abstract
BackgroundPoor adherence to guidelines aimed at reducing the incidence of postoperative nausea and vomiting (PONV) is well known. In a before-and-after study, we tested the effectiveness of a simplified algorithm for PONV prophylaxis on the incidence of PONV. MethodsIn the first audit, we examined the adherence to our institutional guidelines for PONV prevention. In response to the results of this audit, we introduced a simplified algorithm for PONV prevention [female patients receiving triple prophylaxis (dexamethasone and ondansetron plus either a target-controlled infusion with propofol or droperidol) and male patients receiving double prophylaxis, dexamethasone, and ondansetron]. The impact of the simplification of the PONV algorithm was evaluated in a second audit. In both audits, we reviewed the medical records of all adult patients undergoing elective non-cardiac non-day-case surgery under general anaesthesia and being admitted to our post-anaesthesia care unit during two arbitrarily chosen weeks. We assessed the incidence of nausea, vomiting, and PONV after 1 and 24 h, and the compliance with the departmental algorithm for PONV prophylaxis. ResultsAfter simplification of the PONV algorithm, the overall incidence of PONV within 24 h after surgery was significantly lower than before the implementation of the simplified PONV algorithm (22% vs 33%, P=0.02). The PONV incidence within 1 h was comparable between the audits (11% vs 14%, P=0.45). The adherence to departmental guidelines for PONV prophylaxis was significantly higher after the implementation of the simplified PONV algorithm (46% vs 18%, P=0.0001). ConclusionsA simplified algorithm for PONV prophylaxis resulted in a significant reduction in the PONV incidence and better compliance with the PONV algorithm.
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