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General anesthesia (GA) has been the commonly used protocol for total hip arthroplasty (THA); however, neuraxial anesthesia (NA) has been increasingly performed. Our purpose was to compare NA and GA for 30-day postoperative outcomes in United States veterans undergoing primary THA.A large veteran's database was utilized to identify patients undergoing primary THA between 1999 and 2019. A total of 6,244 patients had undergone THA and were included in our study. Of these, 44,780 (79.6%) had received GA, and 10,788 (19.2%) had received NA. Patients receiving NA or GA were compared for 30-day mortalities, cardiovascular, respiratory, and renal complications, and wound infections and hospital lengths of stay (LOS). Propensity score matching, multivariate regression analyses, and subgroup analyses by American Society of Anesthesiology classification were performed to control for selection bias and patient baseline characteristics.Upon propensity-adjusted multivariate analyses, NA was associated with decreased risks for deep venous thrombosis (odds ratio [OR] = 0.63; 95% CI = 0.4-0.9; P = .02), any respiratory complication (OR = 0.63; 95% CI = 0.5-0.9; P = .003), unplanned reintubation (OR = 0.51; 95% CI = 0.3-0.9; P = .009), and prolonged LOS (OR = 0.78; 95% CI = 0.72-0.84; P.001). Subgroup analyses by American Society of Anesthesiology classes showed NA decreased 30-day venous thromboembolism rate in low-risk (class I/II) patients and decreased respiratory complications in high-risk (class III/IV) patients.Using a patient cohort obtained from a large national database, NA was associated with reduced risk of 30-day adverse events compared to GA in patients undergoing THA. Postoperative adverse events were decreased with NA administration with similar decreases observed across all patient preoperative risk levels. NA was also associated with a significant decrease in hospital LOS. |
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