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  • Title: Stenting of superior mesenteric and celiac arteries does not increase complication rates after fenestrated-branched endovascular aneurysm repair.
    Author: Motta F, Crowner JR, Kalbaugh CA, Knowles M, Pascarella L, McGinigle KL, Farber MA.
    Journal: J Vasc Surg; 2019 Sep; 70(3):691-701. PubMed ID: 30837181.
    Abstract:
    OBJECTIVE: This study compared complications in patients undergoing fenestrated-branched endovascular aneurysm repair (F-BEVAR) without and with stenting of the superior mesenteric artery (SMA) or celiac artery (CA), with particular attention to the length of coverage above the CA. METHODS: A retrospective review was performed of a prospectively maintained database of patients treated with F-BEVAR for thoracoabdominal aortic aneurysms between July 2012 and May 2017. Data included demographics, risk factors, comorbidities, preoperative aneurysm characteristics, procedural data, and outcomes. Patients were grouped as follows: group 1, no SMA or CA stent; group 2, SMA or CA stent and <5 cm of coverage above the CA; and group 3, SMA or CA stent and ≥5 cm of coverage above the CA. Complications measured included death, myocardial infarction, respiratory failure, stroke or transient ischemic attack, paraplegia, acute kidney injury, mesenteric ischemia, and vascular complications. Individual and composite complications were compared between groups. RESULTS: There were 223 patients who had data analyzed (group 1, 53 [24%]; group 2, 101 [45%]; and group 3, 69 [31%]). Mean age was 72 years (76% male). There was no difference in patients' characteristics between groups, except for hypertension (less common in group 2) and history of previous aortic surgery (more common in group 3). Group 2 (15%) and group 3 (90%) had higher spinal drain use than group 1 (2%; P < .0001). Mean operative time was longer in groups 2 and 3 compared with group 1 (group 1, 224 minutes; group 2, 253 minutes; and group 3, 313 minutes; P < .0001). Group 1 had more intraoperative complications, without difference in the technical success and mortality rates. Failure to deliver a bridging stent occurred in only 3 of 695 vessels (0.4%) intended, without difference between groups (P = .79). The incidence of major complications (individually and composite analysis) was similar between groups. On 30-day computed tomography angiography, there was no difference in type I or type III endoleaks (2%, 3%, and 6%) and branch patency (98%, 99%, and 99%) for groups 1, 2, and 3, respectively. At 3 years of follow-up, there was no difference in survival, stent patency, and branch instability. Group 3 had a higher reintervention rate compared with groups 1 and 2 (P < .0001); however, there was no difference between groups 1 and 2 (P = .31). CONCLUSIONS: Patients who needed SMA or CA incorporation with stents during F-BEVAR for aortic repair had more complex procedures, as assessed by operative time, brachial access, number of vessels incorporated, and spinal drain use. However, the extension of the repair did not affect the outcomes, demonstrated by similar mortality and morbidity rates between groups.
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