Nobuhiro Takeuchi, Shuho Semba, Kazuyoshi Naba, Tetsuo Maeda and Masanori Takada
An 89 year old female with a history of myocardial infarction, chronic heart failure, hypertension, and atrial fibrillation was transferred to our institution with circulatory insufficiency. The patient had been undergone treatment for in-stent restenosis of the middle left ascending artery 1 week back. Her systolic blood pressure was 70 mm Hg with evident cyanosis over the whole body surface. Arterial blood gas analysis revealed severe metabolic acidosis and the patient exhibited severe hypovolemia. Initiation of dopamine therapy and transfusion ameliorated the circulatory failure. Three days after admission, she discharged massive bloody stools without absence of abdominal pain; colonoscopy revealed segmental pattern of mucosa necrosis in the sigmoid colon. Enhanced abdominal computed tomography revealed neither thrombus nor embolus in the mesenteric artery. Blood flow to the sigmoid colon was evident, prompting a diagnosis of non-occlusive mesenteric ischemia. Although emergency surgery was recommended, the patient declined and died of panperitonitis following conservative therapy. In addition to circulatory insufficiency caused by heart failure in this case, the intestinal ischemia also resulted from hypovolemia, diuretics and digitalis therapy, and arteriosclerosis.
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