A rare case of ischaemic pneumatosis intestinalis and hepatic portal venous gas in an elderly patient with good outcome following conservative management

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INTRODUCTION: Pneumatosis intestinalis (PI) and hepatic portal venous gas (HPVG) are typically associated and are likely to represent a spectrum of the same disease. The causes of both entities range from benign to life-threatening conditions. Ischaemic causes are known to be fatal without emergency surgical intervention. PRESENTATION OF CASE: In this case a 93year old male experienced acute abdominal pain radiating to his back, with nausea and vomiting and a 2-week history of altered bowel habit. Examination revealed abdominal tenderness and distension. He had deranged white cell count (WCC) and renal function. Computed tomography (CT) revealed PI with associated HPVG. The cause was due to ischaemic pathology. The patient was managed conservatively with antibiotics and was discharged 7days later with resolution of his abdominal pain and WCC. DISCUSSION: The pathogenesis of HPVG secondary to PI is poorly understood but usually indicates intestinal ischaemia, thought to carry a mortality of around 75%. HPVG in the older patient usually necessitates emergency surgery however this is not always in the patient's best interest. CONCLUSION: There are few reported cases of patient survival following conservative management of PI and HPVG secondary to ischaemic pathology. This case demonstrates the possibility of managing this condition without aggressive surgical intervention especially when surgery would likely result in mortality due to frailty and morbidity. Further work is required to identify suitable patients.

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