ArticleSpine deformity2021
Utilization of the American Society of Anesthesiologists (ASA) classification system in evaluating outcomes and costs following deformity spine procedures.
Article in Spine deformity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- A machine learning model for automated anesthesia risk classification in lumbar spinal stenosis patients: development and multicenter validation.Frontiers in medicine · 2026Article
- Surgical Pleth Index as a Potentially Useful and Noninvasive Tool for Assessing Tracheal Intubation Conditions in Female Patients During Neuromuscular Blockade-Free Anesthesia.Emergency medicine international · 2026Article
- The effect of high-normal preoperative international normalized ratios on postoperative outcomes and complications following posterior cervical spine surgery.Journal of orthopaedic surgery and research · 2024Article
- Treatment-limiting decisions in patients with severe traumatic brain injury in the Netherlands.Brain & spine · 2024Article
- Efficacy and safety of ultrasound-guided foam sclerotherapy combined with endoluminal radiofrequency closure in patients with varicose veins of lower extremities.International wound journal · 2023Article
- Physiologic risk stratification is important to long-term mortality, complications, and readmission in thoracic endovascular aortic repair.Journal of vascular surgery cases and innovative techniques · 2023Article
- Comorbidity data collection across different spine registries: an evidence map.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2023Review
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8 authors.
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Abstract
purposeAdult spinal deformity (ASD) has increased prevalence in aging populations. Due to the high cost of surgery, studies have evaluated risk factors that predict readmissions and poor outcomes. The American Society of Anesthesiologists (ASA) classification system has been applied to patients with ASD to assess preoperative health and assess the correlation between ASA class and postoperative complications. This study evaluates the relationship between ASA and complications, length of stay (LOS), and direct costs following spine deformity surgery.
methodsPatients undergoing spine deformity surgery at a single institution from 2008-2016 were included and stratified based upon ASA status. Primary outcomes included patient demographics, adjusted LOS, and cost of care. Secondary measures compared between cohorts included adverse events, non-home discharge, and readmission rates.
results442 patients with ASD were included in this study. Higher ASA class was correlated with greater Elixhauser Comorbidity Index (ECI) scores (p < 0.0001) and older age (p < 0.0001). Univariate analysis showed longer LOS (p < 0.0001) and greater direct costs in patients with higher ASA class (p < 0.0001). Patients in ASA Class III or IV had the greatest incidence of ICU stay when compared to patients without systemic disease (p < 0.0001). Upon multivariable regression analysis, high ASA class was associated with higher rates of non-home discharge (OR 5.0, 95% CI 3.1-8.1). Direct costs were greater for higher ASA class (regression estimate = + $9,666, p = 0.002).
conclusionThis study demonstrates that ASA class is correlated with a more complicated postoperative hospital course, greater rates of non-home discharge, total direct costs in spine deformity patients.
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