• Fadi Aldaghlawi, Jonathan S Kurman, Jason A Lilly, D Kyle Hogarth, Jessica Donington, Mark K Ferguson, and Septimiu D Murgu.
• Department of Medicine, Indiana University Goshen Health, Goshen, IN.
• Chest. 2020 May 1; 157 (5): 1346-1353.

BackgroundThe concerns regarding air leak after lung surgery or spontaneous pneumothorax include detection and duration. Prior studies have suggested that digital drainage systems permit shorter chest tube duration and hospital length of stay (LOS) by earlier detection of air leak cessation. We conducted a systematic review to assess the impact of digital drainage on chest tube duration and hospital LOS after pulmonary surgery and spontaneous pneumothorax.MethodsOvid MEDLINE, PubMed, Embase, the Cochrane Library, Scopus, and Google Scholar were searched from inception through January 2019. We included randomized controlled trials, cohort studies, and case series of adult patients, using digital or traditional drainage devices for air leaks of either postsurgical or spontaneous pneumothorax origin.ResultsOf 1,272 references reviewed, 23 articles were included. Nineteen articles addressed postoperative air leak, and four articles pertained to air leak after spontaneous pneumothorax. Thirteen studies were randomized controlled trials. Digital drainage resulted in significantly shorter chest tube duration in eight of 18 studies and shorter hospital LOS in six of 14 studies for postoperative air leak. For postpneumothorax air leak, digital drainage resulted in significantly shorter chest tube duration in two of three studies and hospital LOS in one of two studies with an analog control group.ConclusionsMost studies show no significant differences in chest tube duration and hospital LOS with digital vs analog drainage systems for patients with air leak after pulmonary resection. For post-spontaneous pneumothorax air leak, the limited published evidence suggests shorter chest tube duration and hospital LOS with digital drainage systems.Copyright © 2020 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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