Can sub-cutaneous drain safely counter debilitating surgical emphysema? A retrospective study in quest for an answer

Literature evidence on sub-cutaneous drain insertion in severe surgical emphysema (SE) is lacking. We retrospectively reviewed the clinical notes of 5 patients who underwent insertion of sub-cutaneous drains to manage SE of various aetiologies between September 2022 to August 2023 in a single district general hospital in the UK. Case history, outcome following sub-cutaneous drain insertion, and side effects due to the procedure were collected. Clinical decompression were noticed within an hour of drain insertion in all patients. Radiological resolution ranged between 2 and 10 days with a median 3 days and mean of 4.8 days. Patients with uni-lateral sub-cutaneous drain required more time for radiological improvement than patients on bi-lateral drains (median 6.5 vs. 2, mean 6.5 vs. 3.6). Maximum duration for resolution was 10 days for patients receiving uni-lateral sub-cutaneous drain versus 7 days in patients having bi-lateral drains. Only one patient had no prior lung disease making it difficult to comment if having healthy lungs affects outcomes. Sub-cutaneous drain insertion is a safe procedure which can accelerate recovery in severe SE.