Laboratory "In-vitro" Evaluation of the Parallel Stent Graft Association for the Iliac Sandwich Technique.

Objectives: The Iliac Sandwich is an off-label technique that uses parallel stent grafts to treat aortoiliac aneurysms. The purpose of this experimental study is to evaluate the conformability and juxtaposition of stent grafts combinations used in this technique through in-vitro mechanical evaluation, computed tomography (CT) analyses, and a controlled pulsatile flow system.

Methods: The combinations of two Viabahn® ("V-V") or Viabahn® and Excluder® iliac extension ("V-E") were analysed using CT imaging with measurement of the gutter area by two independent analysts before and after balloon angioplasty.

Evaluation of Safety of Overhead Upper Extremity Positioning During Fenestrated-Branched Endovascular Repair of Thoracoabdominal Aortic Aneurysms.

Purpose: Peripheral nerve and brachial plexus injury can occur from compression or stretching during positioning for operative procedures. The aim of this study was to evaluate the safety of overhead upper extremity positioning to optimize imaging during fenestrated-branched endovascular aortic repair (FB-EVAR) of pararenal (PRA) and thoracoabdominal aortic aneurysms (TAAAs).

Methods: Forty-four consecutive patients enrolled in a prospective non-randomized study underwent FB-EVAR with overhead upper extremity positioning.