Trends, factors, and disparities associated with length of stay after lower extremity bypass for tissue loss: Lessons learned from the National Surgical Quality Improvement Program
2020
Abstract Objective The objective of this study was to determine predictors of increased length of stay (LOS) in patients who underwent lower extremity bypass for tissue loss. Methods Using 2011 to 2016 National Surgical Quality Improvement Program vascular targeted databases, we compared demographics, comorbidities, procedural characteristics, and 30-day outcomes of patients who had expected LOS vs extended LOS (>75th percentile, 9 days) after nonemergent lower extremity bypass for tissue loss. We also compared factors associated with short LOS ( 75th percentile, 9 days) vs the interquartile range of LOS (4-9 days). Yearly trends and independent predictors were determined by linear and logistic regression. This study was exempt from Institutional Review Board approval. Results In 4964 analyzed patients, there were no significant yearly trends or changes in LOS in the recent 5 years (P > .05). Overall 30-day mortality, major amputation, and reintervention rates were 1.6%, 4.5%, and 4.8%, respectively, also with no significant yearly trends (all P > .05). On univariate analysis, nonwhite race, dependent functional status, transfers, dialysis, congestive heart failure, hypertension, beta blockers, distal bypass targets, and extended operative time were associated with extended LOS (P Conclusions From 2011 to 2016, there were no significant changes in LOS. Efforts to decrease LOS without increasing readmission rates while focusing on some of the identified factors, including preventable postoperative complications and pre-existing socioeconomic factors, may improve the overall vascular care of these challenging patients.
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