Retrospective review of patients with lung cancer presenting emergently.

Background: A significant proportion of lung cancer patients receive their diagnosis as part of an emergency presentation (EPs) to emergency departments (EDs).

Objectives: This study aimed to describe EPs of lung cancer at a safety-net hospital system.

Methods: We conducted a retrospective analysis of patients with lung cancer at a safety-net ED. EP was defined as a diagnosis of lung cancer due to an acute presentation with symptoms of undiagnosed lung cancer (e.g., cough, hemoptysis, shortness of breath). Non-EPs were the result of either incidental findings (trauma pan-scan) or as part of lung cancer screening.

Results: A total of 333 patient charts were reviewed who had lung cancer. Of those, 248 (74.5%) were defined as having an EP. EPs were more likely stage IV than non-EPs (50.4% vs 32.9%). The percent mortality was higher for EP versus non-EP, 60.0% vs 49.4%. which is driven by a high mortality rate for stage IV EPs (77.5%). Most patients with an EP were seen in the ED (177, 71.4%) as the location of initial visit that had a workup concerning for lung cancer. Most of the EPs were admitted for completion of either their diagnostic work up and/or for symptom management (117, 66.5%). Logistic regression identified significant predictors for an EP including stage IV at diagnosis (OR 2.49, 95% CI 1.39-4.48) and lack of primary care (OR 0.07, 95% CI 0.009-0.53).

Conclusion: Most patients with lung cancer present acutely as an EP with advanced stage in a safety-net health care setting. The ED plays an important role in the initial diagnosis of lung cancer and coordinating subsequent cancer care.