Acute mesenteric ischemia secondary to superior mesenteric vein thrombosis in a patient with liver cirrhosis: A case report.

RATIONALE: Acute mesenteric ischemia due to superior mesenteric vein (SMV) thrombosis is a rare yet potentially life-threatening emergency. Our case report explores this condition in the context of a patient with liver cirrhosis due to Wilson disease. We specifically highlight the complex derangement of the coagulative balance in liver cirrhosis.

PATIENT CONCERNS: A 34-year-old female with Wilson disease-related cirrhosis presented with intractable abdominal pain, nausea, and vomiting that showed no response to antispasmodic medication.

DIAGNOSES: A contrast-enhanced abdominal computed tomography scan and Doppler ultrasound confirmed an intraluminal filling defect in the SMV, leading to the diagnosis of SMV thrombosis.

INTERVENTIONS: Prompt anticoagulation, intravenous fluids, and an antibiotic were initiated. Surgical consultation recommended conservative therapy with close monitoring.

OUTCOMES: Over the following 2 days, the patient's condition improved considerably, with almost complete resolution of her symptoms. Genetic testing identified a 4G/4G homozygous genotype of the plasminogen activator inhibitor 1 gene, associated with a higher risk of thrombosis in the vessels of internal organs. After 2 months of sustained anticoagulant therapy, a follow-up contrast-enhanced computed tomography scan revealed near-complete recanalization of the SMV, and the patient remained symptom-free.

LESSONS: This case underscores the importance of early detection and treatment of acute mesenteric ischemia in patients with liver cirrhosis, as well as the potential role of genetic factors in thrombosis.