Laparoscopic Management of Internal Hernia After One Anastomosis Gastric Bypass (OAGB)

Among the advantages of the One Anastomosis Gastric Bypass (OAGB) are the lack of jejuno-jejunal anastomosis and a supposed lower incidence of internal hernia (IH), with only a few cases reported until now. However, the incidence of IH after OAGB is not null. We present a video of the laparoscopic management of an IH that occurred after an OAGB. The patient was a 49-year-old female who had undergone a laparoscopic revisional OAGB 2 years previously after a failed laparoscopic adjustable gastric banding. She was referred to our Unit for recurrent postprandial colicky pain. She lost a total of 50 kg and her body mass index (BMI) dropped from 38 to 19 kg/m². A CT scan with intravenous contrast showed a swirl of the mesentery around the superior mesenteric artery, without small bowel obstruction. A laparoscopic exploration was performed, confirming the suspicion of IH at the Petersen’s space. An anticlockwise derotation of the whole common limb was performed, and the Petersen’s space was eventually closed with a running non-absorbable suture.