Simplified algorithm for the prevention of postoperative nausea and vomiting: a before-and-after study (original) (raw)
2018, British Journal of Anaesthesia
Background: Poor 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. Methods: In 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 postanaesthesia 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. Results: After 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%, P¼0.02). The PONV incidence within 1 h was comparable between the audits (11% vs 14%, P¼0.45). The adherence to departmental guidelines for PONV prophylaxis was significantly higher after the implementation of the simplified PONV algorithm (46% vs 18%, P¼0.0001). Conclusions: A 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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