Efficacy and safety of standard and anti-reflux self-expanding metal stent: A systematic review and meta-analysis of randomized controlled trials

Figure 1 Flow chart of articles selected for this meta-analysis study.

Figure 2 Forest plot comparing standardized mean difference in dysphagia and gastroesophageal reflux disease between anti-reflux stent and standard stent. GERD: Gastroesophageal reflux disease.

Figure 3 Forest plot comparing complications of stent migration, bleeding and obstruction between anti-reflux and standard stent.

Figure 4 Funnel plot for publication bias. A: Outcome gastroesophageal reflux disease; B: Outcome dysphagia. SMD: Standard mean difference; GERD: Gastroesophageal reflux disease.