Resumen

FIGUEROA B, Gabriel et al. Spontaneous dissection of superior mesenteric artery. Rev Chil Cir [online]. 2014, vol.66, n.5, pp.474-477. ISSN 0718-4026.  http://dx.doi.org/10.4067/S0718-40262014000500012.

Introduction: Spontaneous dissection of the superior mesenteric artery (AMS) is a infrecuent pathology, representing the main frequency of isolated peripheral artery dissection, it is more common in males and occurs in the fifth decade of life. Materials and Methods: Retrospective cases analysis of patients with spontaneous dissection of AMS that were handled in our hospital, in last two years. Results: Two patients were diagnosed in this period, both active smoking and hypertensive pathology, appearing with severe abdominal and back pain. The diagnosis was made by CT angiogram of the abdomen and pelvis; establishing medical management of hypertension and standard heparin anticoagulation. Both patients had dissections at new imaging controls and one patient required exploratory laparotomy with bowel resection and intestinal anastomosis. Patients recovered satisfactorily and are in control. Conclusions: Spontaneous dissection of the SMA is a rare disease with uncertain evolution, it may occur in middle age of life, associated with smoking and hypertension. The suspected diagnosis is clinical and can be confirmed by CT angiography. Initial management remains conservative and occasionally is surgical.

Palabras clave : Spontaneous superior mesenteric artery dissection; clinical presentation; treatment.

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