Background: Before lung cancer resection, patients inquire about dyspnea and the potential need for supplemental oxygen. The objective of this study was to identify predictors of discharge with supplemental oxygen for patients undergoing lobectomy for lung cancer.
Methods: Using The Society of Thoracic Surgeons General Thoracic Surgery Database, study investigators conducted a retrospective cohort study of patients who underwent lobectomy for lung cancer from July 2018 to 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 predicted postoperative forced expiratory volume in 1 second or predicted postoperative diffusing capacity of lung for carbon monoxide.
Results: Overall, 2100 (8.4%) patients who underwent lobectomy were discharged with supplemental oxygen. Those patients with a minimum of either predicted postoperative forced expiratory volume in 1 second or predicted postoperative diffusing capacity of lung for carbon monoxide ≤60% had a progressively increased risk of discharge with supplemental oxygen than patients with minimum function >60%. The 2 strongest predictors of discharge with supplemental oxygen were increasing body mass index (25-29 kg/m: adjusted odds ratio [aOR], 1.38; 95% CI, 1.21-1.57; 30-39 kg/m: aOR, 2.14; 95% CI, 1.88-2.45; ≥40 kg/m: aOR, 3.51; 95% CI, 2.79-4.39; reference, 18.5-24 kg/m) and former (aOR, 2.04; 95% CI, 1.67-2.52) or current (aOR, 2.61; 95% CI, 2.10-3.26) smoking status (reference, never smoker).
Conclusions: Of those patients who underwent lobectomy for lung cancer, 8.4% were discharged with supplemental oxygen. The study 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.
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