O-EGS09 Effect of introducing an ambulatory care service on management of patients requiring acute cholecystectomy

Background Biliary pathology is a large tranche of the emergency surgical take, taking up many bed days, with many patients not receiving definitive management on their primary admission. An Emergency Surgical Ambulatory Care (ESAC) service was established at our hospital in 2019, aiming to provide a streamlined platform for diagnosis and surgical management of patients. Most notably this included patients with symptomatic gallstones which could be managed on a semi-urgent basis without hospital admission. We aim to analyse the efficiency of this novel service in hopes of identifying room for improvement so that we may enhance our patient outcomes. Methods Two time periods were retrospectively assessed; September-December 2018 (pre- ESAC) and September-December 2019 (six months after ESAC started). Patients with Cholelithiasis (ICD-K80) and Cholecystitis (ICD-K81) were identified, and those with either an incidental diagnosis of gallstones without symptoms, with gallstone pancreatitis, severe inflammation (empyema, gangrene, perforation), requiring ERCP or if they were unfit for surgery were excluded. Data was collected on number of admissions, length of stay and rate of cholecystectomy. Patients were divided into 2018 SAU, 2019 SAU and 2019 ESAC to compare the difference in their outcomes. Data are presented as median (range). Results Some 57 patients presented acutely in 2018 compared to 82 in 2019. The median wait to operation of 43.5 days in 2018 was significantly reduced to 7 days in 2019. Conclusions The introduction of an ESAC service in 2019 has allowed a reduction in number of admissions, total length of stay of patients and significantly reduced waiting time for surgery. Use of ESAC has shown to be more efficient in terms of hospital bed occupation and indirectly, utilization of resources. The high surgical success rate also ensures fewer patients re-presenting with the same pathology to the acute take and hence contributes to reducing strain on the on-call team. Further work is being done to reduce the number of patients presenting through the SAU pathway, and preferentially attending through ESAC.