Does pigtail catheters relieve pneumothorax?: A PRISMA-compliant systematic review and meta-analysis

AbstractBackground:Pigtail catheter drainage has been usually applied for the treatment of pleural effusion and pneumothorax. Our aim was to investigate the application and efficacy of pigtail catheters for pneumothorax.Methods:We carried out a meta-analysis of retro- or pro-spective studies address