Temporal Analysis of Nationwide Emergency Department Utilization and Appendectomy Trends

Background/Objectives: This study examines trends in appendectomy utilization in US emergency departments (EDs) from 2012 to 2021 using National Emergency Department Sample (NEDS) data. The objective is to explore appendectomy frequency, appendicitis management, disease progression, and resource distribution in EDs. A predictive model was developed to forecast trends from 2022 to 2032, aiming to improve patient outcomes and support operational planning in EDs. Methods: A cross-sectional analysis was conducted using NEDS data from 2012 to 2021. Appendectomy trends were assessed in four ways: first, comparing the total number of appendectomies with total ED visits to determine relative frequencies; second, comparing trends in Complicated Appendicitis (CA) and Uncomplicated Appendicitis (UA) patients; third, categorizing each appendicitis type based on clinical complications and comorbidities; and finally, using a linear regression model to predict trends through 2032. Results: During the study period, the overall appendectomy rate decreased, while the proportion of patients with Complicated Appendicitis rose. Appendectomies in patients without complications or comorbidities showed a decline, while those in patients with complications or comorbidities increased. Predictive modeling suggests that trends in all subgroups will continue to rise until 2032. Conclusions: This study highlights evolving appendicitis management trends in EDs. The results advocate for fast-track appendectomy pathways and better resource allocation to enhance efficiency, reduce complications, and improve patient care. These findings assist healthcare systems in preparing for ED throughput challenges and refining surgical management strategies.