Endovascular treatment of chronic mesenteric ischemia.

PURPOSE: Data regarding endovascular treatment of chronic mesenteric ischemia (CMI) are sparse. Angioplasty is often accompanied by early restenosis and the need of further interventions. Thus we present our own patients' data and review the recent literature.

METHODS: We retrospectively reviewed all endovascular CMI treatments performed from 2008 to 2012 (27 patients, 14 females, mean age 70 ± 9 years). Patients' data were retrieved from electronic health records. Patients' follow-up included routinely performed color-coded ultrasonography, and, if performed for other clinical reasons, computed tomography or angiography. In addition, data extracted from 11 studies focusing on endovascular CMI treatment were analyzed.

RESULTS: Procedures were performed without clinical complications in all patients. Seven patients received pure angioplasty and 20 patients stent-assisted angioplasties using bare metal stents, respectively. Three patients died 3, 5 and 32 months after the intervention. Five patients underwent re-intervention (one early restenosis at day 4 after pure angioplasty with stent placement and four because of in-stent restenosis, 5 to 23 months after placement). Another patient was treated surgically because of stent occlusion and reoccurring abdominal angina 15 months after the intervention. The 11 studies found in the literature included 429 cases with 196 treatments of the coeliac trunk (truncus coeliacus = TC), 319 of the superior mesenteric artery (SMA) and 42 of the inferior mesenteric artery (IMA). Patency rates in the more recent studies were high with up to 80% within 1 year. Data of earlier studies report longer follow-up periods and indicate low patency rates after three years. Our 2-year patency rate of 50% is within the range of reported patency data.

CONCLUSIONS: The presented data show that endovascular SMA treatment is a suitable and safe procedure in patients suffering from CMI, but long-term results are limited.