Pigtail chest drains are: i) easy to perform; ii) less painful than soft & hard drains; iii) associated with reduced hospital stay;
and iv) better quality of life.
See: Gammie JS, Banks MC, Fuhrman CR, Pham SM, Griffith BP, Keenan RJ, Luketich JD. The pigtail catheter for pleural drainage: a less invasive alternative to tube thoracostomy. JSLS. 1999 Jan-Mar;3(1):57-61.