4.5 Article

Association of Frailty and Preoperative Hypoalbuminemia with the Risk of Complications, Readmission, and Mortality After Spine Surgery

Journal

WORLD NEUROSURGERY
Volume 174, Issue -, Pages E152-E158

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.wneu.2023.03.095

Keywords

Complications; Frailty status; Hypoalbuminemia; Mortality

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The study aimed to evaluate the effect of frailty and hypoalbuminemia on the risk of complications after spine surgery. The combination of frailty and hypoalbuminemia significantly increases the risk of complications after spine surgery. Frail patients with severe hypoalbuminemia have a significantly higher risk of complications, reoperation, readmission, and mortality compared to patients without hypoalbuminemia.
BACKGROUND: Frailty status and hypoalbuminemia have been associated with higher rates of complications after spine surgery. However, the combination of both conditions has not been fully analyzed. The objective of this study was to assess the effect of frailty and hypo-albuminemia on the risk of complications after spine surgery. -METHODS: The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) data-base from 2009 to 2019 was used. Frailty status was calculated using the modified 5-item frailty index (mFI-5). Patients were classified into nonfrail (mFI = 0), pre-frail (mFI = 1), and frail (mFI & DDAG;2) groups and also based on albumin levels into normal (& DDAG;3.5 g/dL) and hypo-albuminemia groups (<3.5 g/dL). The latter group was also subclassified into mild and severe hypoalbuminemia groups. Multivariable analysis was used. A Spearman r correlation between albuminemia and mFI-5 was also performed. -RESULTS: A total of 69,519 patients (36,705 men [52.8%] and 32,814 women [47.2%]) with a mean age of 61.0 & PLUSMN; 13.2 years were included. Patients were classified as nonfrail (n = 24,897), pre-frail (n = 28,897), and frail groups (n = 15,725). Hypoalbuminemia was significantly higher in the frail group (11.4%) compared with the nonfrail group (4.3%). An inverse correlation was observed between albumin levels and frailty status (r = -0.139; P < 0.0001). Frail patients with severe hypoalbuminemia had significantly higher risk of complications (odds ratio [OR], 5.0), reoper-ation (OR, 3.3), readmission (OR, 3.1), and mortality (OR, 31.8) compared with patients without hypoalbuminemia. -CONCLUSIONS: The combination of frailty and hypo-albuminemia significantly increases the risk of complica-tions after spine surgery. The prevalence of hypoalbuminemia in the frailty group was significantly higher than in nonfrail patients (11.4% vs. 4.3%). Both conditions should be evaluated preoperatively.

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