Contemporary Early and Long-Term Results of Open Repair for Ruptured and Symptomatic Unruptured Infrarenal AAA. Single Center Experience.

BACKGROUND: Observational studies have shown a reduced short-term mortality and increased long-term survival of EVAR over OR in the treatment of ruptured Infrarenal Abdominal Aortic Aneurysm (IAAA). Until now, none of the RCT has gained the result to demonstrate this superiority. Moreover, contemporary reports about results of OR of rIAAA are poor. METHODS: The study is observational and retrospective according to STROBE statement. The patients, unselected and strictly consecutive, were operated in urgency/emergency between 2007 and 2012. All had a preoperative CT angiography. Patients' characteristics, presentation, intraoperative and postoperative details were analyzed to identify factors that can affect the outcome. Considering the small number of events and the exploratory nature of the analyses, only univariate models were fit. RESULTS: One hundred five patients were treated in urgency/emergency setting because of symptomatic. The patients have been divided into two subgroups, based on lesion findings: 75 patients had ruptured IAAA (group A) and 30 patients had unruptured symptomatic IAAA, with CT findings of impending rupture (group B). Intraoperative, perioperative, and in-hospital mortality was respectively 0.9%, 8.6%, and 15.2%, with no difference between the groups. Unique predictors of 30-day mortality were transfusions, major and minor complications. Cumulative follow-up time was 455 person-years. Overall survival was not different between the groups. Predictors of late mortality were: age, creatinine at presentation, adjunctive procedures, length of in-hospital stay, any intraoperative complications, any perioperative complications, any major complication, and postoperative AKI. CONCLUSIONS: An experienced vascular team can achieve very good results in OR of ruptured IAAA, entirely comparable to EVAR. We are still far from a scientifically robust demonstration of the superiority of EVAR over OR in the treatment of ruptured IAAA.

Use of Iliac Branch Endoprosthesis for Aortic Bifurcation Reconstruction.

Iliac branch devices represent a significant improvement in the treatment of common iliac artery (CIA) and aortoiliac aneurysms. Some authors have already described novel and off-label approaches of these devices. We present a case of a 75-year-old man, who underwent 3 years before to emergent aorto-aortic reconstruction, in which we used the Gore Iliac Branch Endoprosthesis as main body because of length, angulation, and narrowing of infrarenal aorta and bifurcation to treat a bilateral CIA. This off-label application of a well-recognized endovascular device appeared safe and feasible.

New therapeutic options provided by off-label deployment of stent graft for tailored arteriovenous access salvage: Two cases.

A tailored therapy to patient requirements by combining endovascular and surgical steps can be necessary to prolong the life of a vascular access. Stent grafts play a growing role for the therapy of dialytic access complications. Randomized multi-center trials, however, support the on-label use of stent grafts in the treatment of graft venous outflow and in-stent restenosis. The main contraindication to their use is an ongoing infection. We report two cases of new off-label application of Viabahn (Gore, flagstaff, USA) stent graft. In the first case, the failure of a radiocephalic early cannulation graft was treated by stent graft placement on the arterial inflow anastomosis, when emergent angiographic examination revealed the previously unknown high takeoff of the radial artery from the axillary artery. At 13-month follow-up, the target lesion remained untreated. In the second case, elbow stent graft occlusion with extended thrombosis occurred in a right radiocephalic fistula after 3 years of unassisted patency. Being the last option for vascular access, successful endovascular recanalization was carried out. After 3 months, however, the clinical setting relapsed. A two-stage hybrid strategy with vascular surgeon was arranged due to ongoing signs of local infection. Flow was restored by emergent thromboaspiration associated with a new stent graft placement as a endovascular bridge to subsequent surgical treatment. After 2 days, the overlapped stent grafts were excised as planned. Surgical rerouting was completed by polytetrafluoroethylene prosthetic bridge implantation across the elbow. At 4 months, the follow-up remained uneventful. In selected instances, the off-label use of stent grafts may expand the therapeutic options of the vascular access team.