Tunç, ŞeymaYıldız Gülhan, PınarBoran, Mertay2025-10-112025-10-1120211309-38781309-3878https://doi.org/10.18521/ktd.912819https://hdl.handle.net/20.500.12684/21164Objective: Coronavirus disease 2019(COVID-19) is considered as systemic disease involving many vital organs in addition to the lungs, including the heart, liver, and kidneys. Pneumomediastinum associated with COVID-19 pneumonia is a rare condition usually seen in patients with underlying lung pathology, infections, or mechanical intubation. We presented a case of late diagnosis of pneumomediastinum and atrial fibrillation in COVID-19 patient undergoing Noninvasive mechanical ventilation (NIMV).en10.18521/ktd.912819info:eu-repo/semantics/openAccessHealth Care AdministrationSağlık Kurumları YönetimiCase Report133652656