Table 2. Possible complications after OAGB.

XXXX	Complications
Complications resolved surgically
Requiring conversion to open surgery	Intra-abdominal bleeding
	EG junction perforation
	Incorrect gastric transection
Resolved by open reoperations	Intra-abdominal bleeding
	Leaks (from anastomotic gastric reservoir)
	Small bowel obstruction
	Partial necrosis of the excluded stomach
Resolved by laparoscopic exploratory laparotomy	Intra-abdominal bleeding
	Leaks (from anastomotic gastric reservoir)
	Small bowel obstruction
	Acute dilation of the excluded stomach
Complications resolved conservatively
Resolved by medical treatment and endoscopic intervention (with or without fibrin glue sealing)	Leaks (from anastomotic gastric reservoir)
Resolved by medical treatment only	Acute pancreatitis
Other complications and side effects
Medical treatment, IV or PO supplementation, need for transfusion	Esophageal clinical reflux
	Protein malnutrition
	Iron deficiency
	Nausea/vomiting
	Folate/B12 deficiencies
	Diarrhea

OAGB, one-anastomosis gastric bypass.