Vaping-Associated Pneumothorax: A Systematic Review of Case Reports and Case Series.

: Pneumothorax is a medical condition characterized by the accumulation of air in the pleural cavity, leading to lung collapse. While cigarette smoking is a well-known risk factor, the role of electronic cigarettes is less understood. This systematic review aimed to evaluate the outcomes of vaping-associated pneumothorax, in addition to its clinical features and management strategies, by compiling published case reports and case series. : The choice to use case reports and case series was due to the limited availability of other types of studies on this emerging condition, as vaping-associated pneumothorax is relatively rare and primarily reported in isolated cases. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we conducted a systematic search of six databases for case reports and case series. Data extraction and quality assessment were performed independently by multiple reviewers. : Seven case reports and four case series with a total number of 16 patients were included. Most patients were young, underweight men who presented with chest pain and shortness of breath. Conventional cigarette and cannabis use were commonly reported alongside vaping. The main treatment was the insertion of a chest tube, with surgical interventions reserved for severe cases. Patients who were treated non-surgically exhibited a higher recurrence rate. Additionally, specific symptoms such as chest pain radiating to the ipsilateral shoulder were associated with a higher recurrence rate. : Clinicians should be vigilant for pneumothorax in at-risk individuals, consider targeted screening for symptomatic vapers, and prioritize early surgical intervention in recurrent cases to reduce complications. Further research is needed to understand the pathophysiology of vaping-associated spontaneous pneumothorax and optimal management strategies.