Endovascular Treatment of Complex Aneurysms with the Use of Covera Stent Grafts
ConclusionsThis new self-expanding covered stent provides good short-term patency in chimneys, branches, or fenestrations. Larger series with long-term follow-up are required to determine if the stent can sustain the mechanical stress to which it will be submitted in these repairs.
Bilateral isolated hypogastric aneurysm (HA) is a rare type of abdominal aneurysm. Endovascular repair has become predominant compared with surgical repair because of its minimal invasiveness. However, type-II endoleak after procedure may lead to continuous enlargement of HA and rupture. Herein, we report a rare case involving a very large HA induced by type-II endoleak after endovascular repair. A 68-year-old male patient underwent endovascular repair of bilateral isolated HAs 4 years ago. Stent grafts were used to block the orifices of bilateral HAs, and main distal outflows were embolized with coils.
We describe a case whereby in-situ laser fenestration, combined with catheter-directed thrombectomy was utilized to revascularize a thrombosed left subclavian artery following a frozen elephant trunk repair of type A aortic dissection.
We report a case of an infrarenal abdominal aortic aneurysm (AAA) with unrecognized primary aortoduodenal fistula (ADF), treated by endovascular aortic repair (EVAR). Endograft infection was diagnosed 12 months thereafter. The associated ADF was uncovered during open surgery, which included endograft extraction, in-situ aortic reconstruction with a cryopreserved homograft (CHG) and duodenal repair. The patient was urgently reoperated in early postoperative course, due to CHG rupture and subsequent hemorrhagic shock.
We sought to determine whether flow velocities measured using Doppler ultrasonography after endovascular aortic aneurysm repair (EVAR) can predict for resolution of type II endoleaks without intervention. We also assessed the relationship of the flow velocities to sac growth and the need for intervention. We hypothesized that hemodynamic properties suggesting low flow velocity would predict for resolution of type II endoleaks.
It was hypothesised that a helical stent with expanded polytetrafluoroethylene (ePTFE) grafts could provide a preventive effect for external iliac artery (EIA) limb occlusion following endovascular aortic aneurysm repair (EVAR). Therefore, a post-hoc analysis of a Japanese multicentre database was conducted to assess the impact of the stent graft design on EIA limb occlusion rates.
The prevailing evidence calls for using chimney/snorkel endovascular repair (ch-EVAR) with one or two chimney grafts. No studies up to now focus on its applicability and results for the treatment of suprarenal aortic pathologies (SRAP). Hence, we evaluated the clinical and radiologic results of ch-EVAR treatment for SRAP placing three or more chimney grafts within the PERICLES Registry.
The objective of this study was to analyze the utility of cone beam computed tomography (CBCT) for technical assessment of standard and complex endovascular aneurysm repair (EVAR).
The objective of this study was to evaluate outcomes of directional branches using self-expandable stent grafts (SESGs) or balloon-expandable stent grafts (BESGs) during fenestrated-branched endovascular aneurysm repair of thoracoabdominal aortic aneurysms.
Purpose of review Given its rarity little is known about natural history, surgical indications, and results of acute non-A non-B dissections. With this review, we aim to review the current knowledge of this subject. Recent findings non-A non-B aortic dissections should be differentiated from type B aortic dissections. A strikingly high proportion of these patients have a complicate course requiring treatment and the mortality of patients treated with medical therapy is substantially higher compared to type B dissections. Surgical and endovascular treatment can be accomplished safety, with very good results in terms of...
ConclusionsTotal endovascular aortic arch repair using the Relay Branch device is technically feasible and effective in excluding aortic arch pathology. The observed stroke rate in the initial experience, however, was considerable. Although appealing, this new lesser-invasive technique should be carefully introduced, and its progress thoroughly evaluated.