Digital twin and artificial intelligence technologies for predictive planning of endovascular procedures.

Current planning of aortic and peripheral endovascular procedures is based largely on manual measurements performed from the 3-dimensional reconstruction of preoperative computed tomography scans. Assessment of device behavior inside patient anatomy is often difficult, and available tools, such as 3-dimensional-printed models, have several limitations. Digital twin (DT) technology has been used successfully in automotive and aerospace industries and applied recently to endovascular aortic aneurysm repair.

Editor's Choice - Outcomes of Cold Stored Saphenous Vein Allografts for Haemodialysis Vascular Access.

Objective: The aim of this study was to evaluate the outcomes of cold stored saphenous vein allografts (CSVAs) for haemodialysis vascular access.

Methods: A retrospective, two centre study was conducted between January 2016 and December 2020 of all patients who had CSVA placement for haemodialysis vascular access. Primary, primary assisted, and secondary patency were analysed, as well as procedural complications and re-interventions.

Hypnosis during Endovascular Abdominal Aortic Aneurysm Repair.

(1) Endovascular abdominal aneurysm repair (EVAR) is associated with a reduction in early morbidity and mortality compared with open repair. Procedures performed under hypnosis might represent an alternative to further reduce the risks related to general anesthesia (GA). This study aimed to assess the feasibility and safety of hypnosis and local anesthesia during EVAR.

Assessment of Thoracic Endovascular Aortic Repair Using Relay Proximal Scallop: Results of a French Prospective Multicentre Study.

Objective: A proximal scallop design allows aortic arch repair without complex endovascular manipulation in the aortic arch. The aim was to assess the safety and efficacy at one year of the Relay proximal scallop stent graft.

Methods: A prospective multicentre study evaluated consecutive patients treated with the Relay proximal scallop stent graft in 10 French aortic centres.

Patient-Specific Numerical Simulations of Endovascular Procedures in Complex Aortic Pathologies: Review and Clinical Perspectives.

The endovascular technique is used in the first line treatment in many complex aortic pathologies. Its clinical outcome is mostly determined by the appropriate selection of a stent-graft for a specific patient and the operator's experience. New tools are still needed to assist practitioners with decision making before and during procedures.

Infectious native aortic aneurysm with negative blood cultures: do not forget the pneumococcal urinary antigen test!

Infectious native aortic aneurysm (INAA) are rare but life-threatening infections. Early microbiological identification is crucial to initiate adequate therapy and decrease the peri-operative risk, but can be challenging when blood cultures remain negative. We describe two cases of pneumococcal INAA with negative blood cultures, diagnosed in the with the pneumococcal urinary antigen test.

Ultrasound-guided percutaneous retrieval of transected radial artery catheter.

Objective: To report our technique for percutaneous ultrasound-guided retrieval of accidentally transected arterial lines.

Cases Description: Two patients are reported herein; in both of these patients, a part of the 20-gauge catheter inserted for invasive monitoring of their blood pressure in the intensive care unit was accidentally transected with part of the catheter remaining in the radial artery. Both patients were initially asymptomatic; therefore, a minimally invasive technique was sought to remove the catheters without inducing significant risk.

Patient Specific Computer Modelling for Automated Sizing of Fenestrated Stent Grafts.

Objective: The aim was to validate a computational patient specific model of Zenith® fenestrated device deployment in abdominal aortic aneurysms to predict fenestration positions.

Methods: This was a retrospective analysis of the accuracy of numerical simulation for fenestrated stent graft sizing. Finite element computational simulation was performed in 51 consecutive patients that underwent successful endovascular repair with Zenith® fenestrated stent grafts in two vascular surgery units with a high volume of aortic procedures.

Routine multi detector computed tomography evaluation of tracheal impairment compared to laryngo-tracheal endoscopy in children with vascular ring.

Purpose: The aim of this study is to compare free-breathing routine multi detector computed tomography (MDCT) and laryngo-tracheal (LT) flexible endoscopy in the evaluation of tracheal impairment in children with vascular ring (VR).

Materials And Methods: We performed a retrospective and monocentric study of all patients with VR from 1997 to 2014. Clinical data included: initial symptoms, type of surgery and clinical outcome.

Surgical internal iliac artery preservation associated with endovascular repair of infrarenal aortoiliac aneurysms to avoid buttock claudication and distal type I endoleaks.

Objective: The objective of this study was to assess outcomes of a hybrid technique for treatment of abdominal aortic aneurysm (AAA) associated with iliac aneurysm without distal neck by combining an AAA endovascular repair approach with open surgery for preservation of the internal iliac artery (IIA).

Methods: The files of 51 patients operated on between 1998 and 2017 in a single vascular surgery department were retrospectively analyzed. Inclusion criteria were patients with AAA associated with uni-iliac or bi-iliac aneurysm without suitable distal sealing zone.

Femoral artery transposition is a safe and durable option for the treatment of popliteal artery aneurysms.

Objective: A suitable ipsilateral great saphenous vein (GSV) autograft is widely considered the best material for arterial reconstruction of a popliteal artery aneurysm (PAA). There are, however, cases in which such a GSV is absent, diseased, or of too small diameter for this use. Alternatives to GSV are synthetic conduits, but with a reduced long-term patency, in particular for infragenicular bypass; other venous autografts of marginal use; and stent grafts still in the first stages of their evaluation.