Resuming Elective Surgery during Covid-19: Can Inpatient Hospitals Collaborate with Ambulatory Surgery Centers?

Little is known about the volume and scope of surgical procedures performed in ambulatory surgery centers (ASCs) and the resources that ASCs may provide to assist local health systems. The purpose of this study was to evaluate elective surgical procedures in the inpatient and outpatient ASC setting using currently available administrative claims data.

We used the 2019 Medicare Point of Service (POS) file to evaluate the geographic distribution of Medicare-certified ASCs in the U.S. To evaluate the volume and scope of elective procedures in the inpatient and outpatient ASC setting, we used the 2016 Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) and the 2018 California HHS Open Data Portal ambulatory surgery database. HCUP software programs were used to clinically categorize procedures and determine Elixhauser comorbidity profiles for each patient.

Among the 8,540 Medicare certified ASCs in 2019, the majority are freestanding (99.5%) and privately owned (92.9%). In the inpatient setting, 13.3% of elective operating room procedures occur in patients without any Elixhauser comorbidities and require < 2 days of hospital stay. However, the types of elective procedures performed in the inpatient setting are different from the types of procedures routinely performed in ASCs.

Current administrative data lack robust facility, provider, and procedure level information to inform surge capacity protocols for elective surgery. Plastic surgeons are uniquely positioned to work with other specialties and local health systems to guide future development of surge capacity protocols that maintain and improve patient care.