Use of Apfel Simplified Risk Score to Guide Postoperative Nausea and Vomiting Prophylaxis in Adult Patients Undergoing Same-day Surgery

Abstract

PurposeThe quality improvement (QI) project implemented a postoperative nausea and vomiting (PONV) risk screening tool and introduced a risk-tailored prophylactic guideline to identify patients at risk for PONV and aimed to minimize PONV adverse events. DesignThis project represents the initial PDSA (Plan-Do-Study-Act) cycle for quality improvement with use of a pre-post design with two independent groups designed to compare PONV rates before and after implementation of an Apfel Simplified Risk Score screening and prophylactic guideline intervention. MethodsThe project implemented the screening of patient PONV risk using the Apfel Simplified Risk Score and a combination antiemetic drug class prophylactic guideline for adult patients undergoing elective same-day surgery procedures. An online education module was provided to anesthesia professionals and was reviewed in-person with the relevant anesthesia professional team prior to surgery. Pre-implementation (N=107) PONV outcomes were collected. Data collected from a retrospective chart review was used to compare pre- and post-implementation PONV rates (N=96) and determine post-implementation anesthesia professional adherence to guideline recommendations. FindingsForty percent of screened patients were identified as having an increased PONV risk with an Apfel Simplified Risk Score of 3 or 4. The PONV rates for the pre-group (19.6%) and post-group (22.9%) did not significantly differ (P=.5567). Anesthesia professional adherence to administration of the recommended number of antiemetic drug classes was 89.6%. A Spearman point-biserial correlation analysis indicated a significant positive relationship between Apfel Simplified Risk Score and PONV onset in the post-group (rs=0.21, P=.0428). ConclusionsThe Apfel Simplified Risk Score and prophylactic guideline increased identification of patients at risk for PONV but did not affect PONV rate despite a high anesthesia professional adherence to the guideline recommendations.