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making it a rare condition yet to be found in our series. The nutcracker syndrome has been described in several publications as the origin of the pelvic congestion syndrome, and in some publications it is referred to as the main actor. However, in our series, there is clearly a great discrepancy related to what has been published compared with our findings.

Introduction: The limb amputation is an important cause of morbidity and mortality in short and long term , therefore any option to preserve the extremity is welcome. The aim of this study was to avoid the major amputation in patients without possibility of revascularization by therapy with Autologous Stem Cells Methods: Under epidural anaesthesia a total of 240 ml of Bone Marrow was obtained by direct puntion from the iliac bones and then the sample was centrifuged for 20 minutes , from this amount only 40 cc containing Autologous Stem Cells, was injected in the ischaemic leg guided with ultrasound as close as possible to the obliterated arterial tree at one cm intervale. Tuenty patients were included in this study, 4 with grade IV and 16 with grade III of the Fontaine classification. All of them candidates for a mayor amputation in a short therm. The following parameters were investigated before and after treatment : Pain scale, A.B.I and Angiography findings Results: Four of the patients (15%) that were in grade IV of Fontaine classification did not improve and underwent a mayor amputation, 16 patients (85%) experienced a steadily improvement coming out of the rest pain and avoiding mayor amputation, this improvement was demonstrated, clinically and radiologically. Conclusion: These results may open new possibilities of treatment to those patients otherwise condemned to a major amputation. Possibly is an ideal technique for patients with Buerguer's disease. This technique seems to be more effective when the patients are only in Grade 3 of the Fontaine classification.

EVAR VS 75y.o. for emergent EVAR. Tobacco use(89%) followed by arterial hypertension(80%) are the most prevalent cardiovascular risk factors. Based on AAA anatomy 76% were aortic aneurysms, 21% aorto-iliac and just 3% isolated iliac aneurysms. Mean of the AAA max diameter was 60.44mm for elective VS 75.54mm for emergent/ruptured cases. Mean neck diameter at renal arteries level was 24,3mm for elective VS 24.9mm for emergencies, and 2cm lower to renal was 26.57mm for elective vs 27.99mm for emergent. Anaesthetic risk 57.4% of the patients were ASA III and 25.7% ASA IV. Percutaneous access in 41.8% of the elective and 27.3% of the emergent cases. 29.7% of the cases where considered hostile neck anatomies, with 18.8% treated out of the instructions of use(IFU's) of the stentgraft. Stentgraft devices: 45.9 % with infrarenal fixation versus 54.1% suprarenal fixation. Technical success for EVAR achieved in 97.8%, with a conversion to OpenRepair rate inferior to 1.3%. 30-D endoleaks in 17.5% of the cases, from those 6% classed as type I. Hospital stay for elective EVAR was 4.85 days VS 8.44 for emergencies. Post-Implant syndrome in 17.4% patients. 30-D mortality for the 62 emergent cases was 22.2% VS 0.7% for the 312 elective. No major 30-D complications reported after EVAR in 85% of the elective cases versus 57.1% of the emergencies. Conclusion: The results of this multicentric registry, the largest with these characteristics performed in Spain shows similar 30-D results compared with other international registries and trials published in the literature, with a global decrease in 30-D mortality, lower than 1.5% for elective AAA repair and close to 20% for ruptured AAA, and reported technical success of superior to 98%. But the elevate number of cases included in this registry performed in hostile necks and out of the stentgrafts IFU's should be clearly remarked. Although it seems not to be relevant at the initial presented 30-D data after EVAR there is a need of close follow-up of these patients and it is mandatory to report the mid and long-term results of these patients over the next years.