Acute gastric dilation is a rare but recognised complication in patients with bulimia and anorexia following binge episodes owing to decreased bowel motility. We present a rare case of acute gastric dilation secondary to bulimia in an otherwise healthy 18-year-old female patient that resulted in compression and complete occlusion of the abdominal aorta, leading to acute mesenteric and bilateral lower limb ischaemia. This resolved immediately following a laparotomy and gastric decompression.Management of these patients is very challenging owing to the lack of a successful precedent. To our knowledge, such a catastrophic complication has only ever been reported once in the literature and the outcome was fatal. Our case is of additional importance as it offers a successful management strategy for these patients.
KEYWORDSAcute gastric dilation -Aortic occlusion -Bulimia
Case HistoryAn 18-year-old woman with bulimia presented to the emergency department with sudden onset of severe abdominal pain and distension over the previous 2 hours. Within 30 minutes of arrival, her pain started to radiate to her back, she became unresponsive and developed extensive mottling of the skin from the waist down. Further examination revealed a grossly distended abdomen, engorged neck veins and absent femoral pulses bilaterally. She had a blood pressure of 190/132mmHg, a pulse rate of 100/min, a respiratory rate of 28/min, oxygen saturation of 98% on air and a temperature of 37.2°C.Assuming a diagnosis of aortic dissection, the on-call vascular surgeon was bleeped to the emergency department while the patient was being intubated and resuscitated. A venous blood gas sample showed she was in profound metabolic acidosis with a pH of 7.1 and a lactate of 7.6.As the patient was haemodynamically stable, urgent computed tomography was performed. This revealed a massively dilated stomach occupying the majority of the abdominal cavity from the epigastrium down into the pelvis with gas extending into the liver and spleen (Fig 1). Alarmingly, it also showed that the abdominal aorta was being compressed and completely occluded above the superior mesenteric artery origin (Figs 2 and 3).The patient was taken to theatre for an emergency laparotomy and on opening the abdominal cavity, she was also found to have extensive small and large bowel ischaemia. A gastrotomy was performed and the stomach was decompressed, with a total of 15l of gastric content being emptied. This resulted in an immediate restoration of circulation with reperfusion of the bowel and return of femoral pulses bilaterally. She was transferred to the intensive care unit (ICU) with a laparostomy and a plan for a 'relook' laparotomy in 48 hours.Unfortunately, over the next 24 hours, the patient developed disseminated intravascular coagulopathy and liver failure, and went into a profound metabolic acidosis. She was returned to theatre and an extended right hemicolectomy with an end ileostomy was performed for necrosis of the ascending and transverse colon. The stomach was also ...