Predictive Factors of Amputation in Infrainguinal Vascular Trauma: A Monocentric Experience.

Background: Infrainguinal vascular injuries (IIVIs) are emergencies involving both functional and vital prognosis. The choice between saving the limb or doing a first-line amputation is difficult even for an experienced surgeon. The aims of this work are to analyze early outcomes in our center and to identify predictive factors for amputation.

Systematic Review and Meta-Analysis of Ex-Situ and In-Situ Fenestrated Stent-Grafts for Endovascular Repair of Aortic Arch Pathologies.

Purpose: To gain insight into safety and efficacy of in situ and ex-situ fenestration techniques for total endovascular arch repair. The term ex-situ fenestration is referring to physician-modified stent-graft technique where fenestration is performed on a back table.

Methods: Electronic search was conducted according to PRISMA (Preferred Reporting Items for Systematic review and Meta-analyses) guidelines from 2000 to 2020.

Systematic review and meta-analysis of endovascular versus open repair for common femoral artery atherosclerosis treatment.

Background: Encouraging recent reports on endovascular treatment of common femoral artery (CFA) atherosclerotic disease has rendered the question regarding the place of this technique evermore pertinent and legitimizes the performance of randomized trials. The present comprehensive review focused on the early and midterm outcomes to help assess the benefit/risk balance of endovascular vs open repair for CFA treatment.

Methods: Embase and Medline searches were conducted according to the PRISMA (Preferred Reporting Items for Systematic review and Meta-Analyses) standards to identify studies from 2000 to 2018 reporting on endovascular repair (ER), open surgery (OS), and comparisons of both techniques for CFA atherosclerosis treatment.

Mechanical characterisation of human ascending aorta dissection.

Mechanical characteristics of both the healthy ascending aorta and acute type A aortic dissection were investigated using in vitro biaxial tensile tests, in vivo measurements via transoesophageal echocardiography and histological characterisations. This combination of analysis at tissular, structural and microstructural levels highlighted the following: (i) a linear mechanical response for the dissected intimomedial flap and, conversely, nonlinear behaviour for both healthy and dissected ascending aorta; all showed anisotropy; (ii) a stiffer mechanical response in the longitudinal than in the circumferential direction for the healthy ascending aorta, consistent with the histological quantification of collagen and elastin fibre density; (iii) a link between dissection and ascending aorta stiffening, as revealed by biaxial tensile tests. This result was corroborated by in vivo measurements with stiffness index, β, and Peterson modulus, E, higher for patients with dissection than for control patients.

Endovascular Versus Open Repair for Chronic Type B Dissection Treatment: A Meta-Analysis.

Background: The respective place of endovascular repair (ER) versus open surgery (OS) in thoracic dissecting aneurysm treatment remains debatable. This comprehensive review seeks to compare the outcomes of ER versus OS in chronic type B aortic dissection treatment.

Methods: Embase and Medline searches (2000 to 2017) were performed following PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses) guidelines.

Endovascular creation and validation of acute in vivo animal model for type A aortic dissection.

Background: Animal modeling is a prerequisite for clinical transfer of new therapies. This study targets an acute in vivo animal model of type A dissection using endovascular approach with a view to test future stent grafts dedicated to this aortic segment.

Methods: Experiments were conducted on 13 swine.

Editor's Choice - The Implications of Non-compliance to Endovascular Aneurysm Repair Surveillance: A Systematic Review and Meta-analysis.

Objective/background: Increasingly, reports show that compliance rates with endovascular aneurysm repair (EVAR) surveillance are often suboptimal. The aim of this study was to determine the safety implications of non-compliance with surveillance.

Methods: The study was carried out according to the Preferred Items for Reporting of Systematic Reviews and Meta-Analyses (PRISMA) guidelines.

Aortic Anatomy and Complications of the Proximal Sealing Zone after Endovascular Treatment of the Thoracic Aorta.

Background: Technical and clinical success of thoracic aortic endovascular procedures relies mainly on the choice of the proximal sealing zone (PSZ). The latter can be affected by multiple complications, all of them having a potential gravity and a direct link with the quality of the PSZ. The objective of this study was to analyze the risk factors of PSZ complications occurrence.

Outcomes analysis of stent-graft repair for thoracic aorta emergencies.

Background: This study aimed to identify patient, pathology and procedure-related factors affecting perioperative and mid-term mortality of thoracic aorta emergencies.

Methods: Between 2007 and 2014, patients treated emergently with thoracic stent-graft were retrospectively reviewed. Variables analyzed were: age, renal insufficiency, shock, cardiac arrest, transfer status, pathology, debranching procedures, operation duration, vascular access and European System for Cardiac Operative Risk Evaluation (EuroSCORE).

Systematic Review of Reintervention After Thoracic Endovascular Repair for Chronic Type B Dissection.

This review analyzed the incidence, mechanisms, and risk factors of aortic-related reintervention after endovascular repair of chronic dissections. The systematic review identified 28 studies describing 1,249 patients at median 27 months follow-up (range, 10.3 to 64.

Biaxial tensile tests of the porcine ascending aorta.

One of the aims of this work is to develop an original custom built biaxial set-up to assess mechanical behavior of soft tissues. Stretch controlled biaxial tensile tests are performed and stereoscopic digital image correlation (SDIC) is implemented to measure the 3D components of the generated displacements. Using this experimental device, the main goal is to investigate the mechanical behavior of porcine ascending aorta in the more general context of human ascending aorta pathologies.

Outcome of acute mesenteric ischemia in the intensive care unit: a retrospective, multicenter study of 780 cases.

Background: In the intensive care unit (ICU), the outcomes of patients with acute mesenteric ischemia (AMI) are poorly documented. This study aimed to determine the risk factors for death in ICU patients with AMI.

Methods: A retrospective, observational, non-interventional, multicenter study was conducted in 43 ICUs of 38 public institutions in France.

Atheromatous occlusive lesions of the popliteal artery treated with stent grafts: predictive factors of midterm patency.

Background: Because of its location, the popliteal artery is exposed to important biomechanical constraints, inducing a specific risk of thrombosis of stents, little studied in the literature. The objective of this monocentric retrospective study was to evaluate the patency of stents implanted in the popliteal artery to treat atheromatous lesions and the risk factors predisposing to thrombosis.

Methods: Between January 2009 and July 2013, all the patients receiving stents for a residual stenosis or a complication of angioplasty in the popliteal artery or the distal anastomosis of a femoropopliteal bypass were included retrospectively and in an intention to treat.

Examination of factors in type I endoleak development after thoracic endovascular repair.

Objective: The objective of this study was to assess the effects of operative indication, anatomy, and stent graft on type I endoleak occurrence after thoracic endovascular aortic repair.

Methods: A retrospective review was conducted of patients admitted for thoracic endovascular aortic repair between 2007 and 2013. All computed tomography angiography imaging was analyzed for the presence of endoleak and measurement of diameters and lengths.

Endovascular management of severe bleeding after major abdominal surgery.

Background: In this study we analyzed embolization and stent-graft results.

Methods: Demographics, indications, procedures, and outcomes of patients treated with embolization or stent grafting for late postoperative bleeding after major abdominal surgery were retrospectively recorded. Outcomes were analyzed on an intention-to-treat basis.

Preliminary experimental study of a mechanical connector allowing vascular anastomosis.

Background: Aortic clamping time needed to carry out anastomosis during aortic surgery is one of the major predictive factors of morbidity/mortality. Because of the difficulties inherent in this technique, the duration of aortic clamping can be increased significantly with laparoscopy, which may explain why this kind of surgery is not often undertaken. We designed an original connector that will help us perform automated end-to-end vascular anastomoses.