Direct comparison of simultaneous and sequential endoscopic metallic bilateral stenting in malignant hilar biliary obstruction

Figure 4 Adverse event and recurrent biliary obstruction outcomes. A: Rate of early adverse events among groups; B: Repartition of severity according the Adverse Event Gastrointestinal Endoscopy classification among patients who suffered from an adverse event; C: Kaplan-Meier curves compared recurrent biliary obstruction-free survival between simultaneous and sequential groups; D: Repartition of severity according to the Adverse Event Gastrointestinal Endoscopy classification among patients with cholangitis. AGREE: Adverse Event Gastrointestinal Endoscopy; SBS: Side by side; SIS: Stent in stent.