Preoperative and postoperative complications as risk factors for delayed gastric emptying following pancreaticoduodenectomy: A single-center retrospective study

Figure 1 Gastrointestinal series showing the effect of different medications on gastrointestinal motility. Angiography was performed in patients A and B after oral administration of meglumine diatrizoate. A: On postoperative day 9, patient A showed no peristalsis and high tension in the stomach; B: On postoperative day 13, 24 h following the injection of neostigmine through the transdermal receptor pathway, peristaltic waves were observed in patient A; C: On postoperative day 11, patient B showed no peristalsis in the stomach; D: On postoperative day 13, 24 h after the injection of neostigmine through the transdermal receptor pathway, peristaltic waves were observed in patient B.