Predictors of Discharge With Supplemental Oxygen After Lobectomy for Lung Cancer

BACKGROUNDBefore lung cancer resection, patients inquire about dyspnea and the potential need for supplemental oxygen. Our objective was to identify predictors of discharge with supplemental oxygen for patients undergoing lobectomy for lung cancer.METHODSUsing the Society of Thoracic Surgeons General Thoracic Surgery Database, we conducted a retrospective cohort study of patients undergoing lobectomy for lung cancer from July 2018 – December 2021. Multivariable logistic regression was used to determine the adjusted association of pulmonary function with discharge on supplemental oxygen and identify independent predictors of discharge with supplemental oxygen. Pulmonary function was modeled as the minimum of either ppoFEV1 or ppoDLCO.RESULTSOverall, 2,100 (8.4%) patients undergoing lobectomy were discharged with supplemental oxygen. Those with a minimum of either ppoFEV1 or ppoDLCO ≤60% had a progressively increased risk of discharge with supplemental oxygen than those with minimum function >60%. The two strongest predictors of discharge with supplemental oxygen were increasing BMI (25-29 aOR 1.38, 95%CI 1.21-1.57, 30-39 aOR 2.14, 95%CI 1.88-2.45, ≥40 aOR 3.51, 95%CI 2.79-4.39, reference 18.5-24) and former (aOR 2.04, 95%CI 1.67-2.52) and current (aOR 2.61, 95%CI 2.10-3.26) smoking status (reference never smoker).CONCLUSIONSOf those undergoing lobectomy for lung cancer, 8.4% were discharged with supplemental oxygen. We identified preoperative independent predictors of discharge with supplemental oxygen that may be useful during shared decision-making discussions of treatment options for lung cancer and setting expectations with patients.