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Background:. 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. Methods:. 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. Results:. 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. Conclusions:. 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.

Introduction Most patient-reported outcome measures (PROM) for chronic wounds are specific to a single wound type (eg, pressure ulcer) or part of the body. A barrier to outcome assessment in wound care and research is the lack of a rigorously designed PROM that can be used across wound types and locations. This mixed method study describes the protocol for an international collaboration to develop and validate a new PROM called the WOUND-Q for adults with chronic wounds.Methods and analysis In phase I, the qualitative approach of interpretive description is used to elicit concepts important to people with wounds regarding outcome. Participants from Canada, Denmark, the Netherlands, and the USA are aged 18 years and older and have a wound that has lasted 3 months or longer. Interviews are digitally recorded, transcribed and coded. A conceptual framework and preliminary item pool are developed from the qualitative dataset. Draft scales are formed to cover important themes in the conceptual framework. These scales are refined using feedback from people with chronic wounds and wound care experts. After refinement, the scales are translated into Danish and Dutch, following rigorous methods, to prepare for an international field-test study. In phase II, data are collected in Canada, Denmark, the Netherlands, and the USA. An international sample of people with a large variety of chronic wounds complete the WOUND-Q. Rasch Measurement Theory analysis is used to identify the best subset of items to retain for each scale and to examine reliability and validity.Ethics and dissemination This study is coordinated at Brigham and Women’s Hospital (Boston, USA). Ethics board approval was received at each participating site for both study phases. Findings will be published in peer-reviewed journals and presented at national and international conferences and meetings.