Assessment of the quality of life comparison between open and endovascular aortic arch surgery: a pilot study.

Background: Advancement in endovascular endografts have paved the way to the possibility of performing endovascular aortic arch repair in recent years. This has started to supersede the need for open aortic arch surgery. There remains a paucity of data looking into the quality of life comparison between open aortic arch surgery and endovascular aortic arch repair.

Sympathetic nerve activity following Acute Type B Aortic Dissection: a pilot study.

Introduction Control of blood pressure following acute type B aortic dissection usually requires sympatholytic antihypertensive medication. Although sympathetic nerve activity is central to blood pressure control, its role in the hypertensive response to acute aortic dissection has not been assessed. Methods A prospective pilot study was performed over an 18-month period.

Long term surgical outcomes following renal transplantation in Aotearoa New Zealand: the South Island Chapter.

Background: Over the last decade, there has been a steady increase in the number of patients diagnosed with end stage renal failure (ESRF). Renal transplant remains the best available treatment for ESRF. The aim of this study is to assess the surgical outcomes following renal transplantation in a single tertiary centre in Aotearoa New Zealand.

Stent retriever expansion as a corrective maneuver to optimize inadequately deployed flow diverter stents.

Background And Purpose: As flow diversion (FD) is becoming increasingly important in the endovascular treatment of intracranial aneurysms, the rate of technical complications is also increasing. Inadequate FD implantation may lead to both ischemic complications and decreased treatment efficacy. The aim of this study was to evaluate the efficacy of off-label stent retriever (SR) use in managing technical complications associated with FD implantation.

A ruptured craniocervical junction perimedullary arteriovenous fistula successfully treated through flow diversion: A case report.

Background: Spinal arteriovenous fistulae (AVF) located at the craniocervical junction (CCJ) are rare and usually present with hemorrhage. Bleeding is usually attributed to arterial feeders arising from the anterior spinal artery (ASA) and aneurysms located on such feeders. Perimedullary AVFs are typically found on the ventral surface of the spinal cord, which makes them difficult to treat through traditional microsurgical methods.

Outcomes after Endovascular Arch Repair in Patients with a Mechanical Aortic Valve: Results from a Multicentre Study.

Objective: The aim of this study was to investigate outcomes after endovascular aortic arch repair in patients with a mechanical aortic valve where the valve needs to be crossed.

Methods: An international, multicentre, retrospective observational study was undertaken including all consecutive patients who underwent endovascular arch repair with mechanical aortic valve crossing.

Results: From March 2020 to August 2023, 12 patients were included in the study (median age 55 years, interquartile range 45, 67 years; 58% male).

Flow diversion with hydrophilic polymer coating with prasugrel as single antiplatelet therapy in the treatment of acutely ruptured intracranial aneurysms: a multicenter case series, complication and occlusion rates.

Background: This study reports a multicenter experience of using hydrophilic polymer-coated (HPC) flow diverters with prasugrel single antiplatelet therapy to treat ruptured aneurysms with subarachnoid hemorrhage (SAH).

Methods: Patients treated for intracranial aneurysms within 30 days after SAH with a p64/p48 MW HPC flow diverter were prospectively identified. Clinical presentation and outcomes, periprocedural and postprocedural complications, and degree of occlusion at follow-up were evaluated.

Is Stent Retraction to ReLieve Arterial Cerebral VaSospasm Caused by SAH (Stent-ReLACSS) Using PRELAX the Long-awaited Solution for Treatment of Posthemorrhagic Cerebral Vasospasm? : Treatment of Posthemorrhagic Cerebral Vasospasm with PRESET and PRELAX: Technical Aspects, Efficacy, and Safety Margins in a Case Series.

Purpose: Recent observational studies have indicated the efficacy of stent retriever devices for the treatment of posthemorrhagic cerebral vasospasm (CVS), both by deployment and on-site withdrawal into the microcatheter (stent angioplasty, SA) and deployment followed by retraction through the target vessel similar to thrombectomy (Stent Retraction to reLieve Arterial Cerebral vaSospasm caused by SAH, Stent-ReLACSS). This article reports the findings with each application of pRESET and pRELAX in the treatment of CVS.

Methods: We retrospectively enrolled 25 patients with severe CVS following aneurysmal subarachnoid hemorrhage.

Endovascular treatment of distal anterior cerebral artery aneurysms using flow modulation devices: mid- and long-term results from a two-center study.

Purpose: Flow-diverter (FD) stents have become an established treatment for intracranial aneurysms in recent years, but their use for aneurysms in distal cerebral vessels with small carrier vessel diameters remains controversial. This study describes the method and mid- and long-term outcomes of FD treatment of distal anterior cerebral artery aneurysms (DACAAs) at two neurointerventional centers, to elucidate this topic and provide more in-depth data.

Methods: Data for all patients at two neurointerventional centers who were treated with FDs for DACAAs in the pericallosal and supracallosal segment of the anterior cerebral artery were retrospectively analyzed.

Triple platelet inhibition in intracranial thrombectomy with additional acute cervical stent angioplasty due to tandem lesion: a retrospective single-center analysis.

Background: Acute stroke treatment with intracranial thrombectomy and treatment of ipsilateral carotid artery stenosis/occlusion ("tandem lesion", TL) in one session is considered safe. However, the risk of stent restenosis after TL treatment is high, and antiplatelet therapy (APT) preventing restenosis must be well balanced to avoid intracranial hemorrhage. We investigated the safety and 90-day outcome of patients receiving TL treatment under triple-APT, focused on stent-patency and possible disadvantageous comorbidities.

Analysis of Flow Through Extra-Anatomic Bypasses Between Supra-Aortic Branches Using Particle Image Velocimetry (PIV).

Supra-aortic extra-anatomic debranch (SAD) are prosthetic surgical grafts used to revascularize head and neck arteries that would be blocked during a surgical or hybrid procedure used in treating ascending and arch of the aorta pathologies. However, bypassing the supra-aortic arteries but not occluding their orifice might introduce potential for competitive flow that reduces bypass patency. Competitive flow within the bypasses across the supra-aortic arteries has not previously been identified.

A 12-year experience in the management of blunt thoracic aortic injury in Otautahi Christchurch.

Background: Blunt thoracic aortic injury (BTAI) is associated with a high mortality and is the second most common cause of death from trauma. The approach to major trauma, imaging technology and advancement in endovascular therapy have revolutionised the management of BTAI. Endovascular therapy has now become the gold standard technique replacing surgery with its high mortality and morbidity in unstable patients.

Drug-Coated Balloons for Treatment of Internal Carotid Artery Restenosis After Stenting: A Single-Center Mid-Term Outcome Study.

Purpose: Endovascular and surgical treatments of stenosis of the extracranial internal carotid artery (ICA) are common procedures, yet both introduce a risk of restenosis due to endothelial hyperplasia. Drug-coated balloons (DCBs) are designed to decrease neointimal hyperplasia, however rarely used in the neurovascular setting. This study retrospectively analyzes mid-term results of DCB-treated in-stent restenosis (ISR) of the ICA.

A glimpse into the incidence and mortality of aortic dissection in Aotearoa New Zealand.

Background: Aortic dissection is a lethal medical diagnosis associated with high morbidity and mortality. Currently published studies have noted a rising incidence of aortic dissection globally as well as a downward trend in mortality secondary to aortic dissection. There remains no nationally available study here in Aotearoa New Zealand looking into the incidence and mortality of aortic dissection.

Mechanical aortic valve may no longer be a contraindication to inner branch aortic arch endografts.

Objectives: The presence of a mechanical aortic valve has been a contraindication to the use of an arch branch aortic endograft due to the risk of damaging the valve, resulting in acute aortic regurgitation, or a trapped endograft.

Methods: We present a 67-year-old woman, with a background of Marfan's syndrome and a previous Bentall's procedure, who presented with a symptomatic enlarging aortic arch and descending thoracic aortic aneurysm, with a type 1A endoleak.

Results: Using an inner branch arch endograft (Cook Medical, Bloomington, Indiana), the nose cone of the delivery system was passed laterally through the semi-circular aperture of the mechanical aortic valve to facilitate deployment just distal to the coronary buttons.

Acute aortic syndrome: nationwide study of epidemiology, management, and outcomes.

Background: Epidemiological studies on acute aortic syndrome (AAS) have relied largely on unverified administrative coding, leading to wide-ranging estimates of incidence. This study aimed to evaluate the incidence, management, and outcomes of AAS in Aotearoa New Zealand.

Methods: This was a national population-based retrospective study of patients presenting with an index admission of AAS from 2010 to 2020.

Common Designs of Custom-Made Fenestrated Arch Devices and Applicability of an Off-the-Shelf Design.

Objectives: To analyze device designs, similarities and overlaps of custom-made fenestrated arch endografts intended for mid/distal arch thoracic endovascular aortic repair.

Materials And Methods: A multicenter cross-sectional study analyzing custom-made anonymized graft plans was performed. Graft plans were included from a cohort of mid/distal aortic arch repairs using custom-made fenestrated aortic endografts treated at 8 centers.

Novel modification of a branched arch endograft with a retrograde left common carotid branch for acute pseudoaneurysm post type A repair.

Objective: Pseudoaneurysm formation post type A aortic dissection repair is rare. Revision surgical repair is challenging, with a risk of death from haemorrhage.

Methods: We present a 56-year-old man who presented with a rapidly enlarging distal ascending aortic anastomotic pseudoaneurysm following a recent ascending and hemiarch replacement for acute type A aortic dissection.

Particle Image Velocimetry Evaluation of Hemodynamics Proximal to the Kissing Stent Configuration in the Aorto-Iliac Bifurcation.

Purpose: The kissing stent (KS) method is low-risk compared with open surgery techniques. It is often used to treat aorto-iliac occlusive disease (AIOD). Deployment of the KS geometry has a high technical success rate.

Intracranial stenting as a bail-out option for posthemorrhagic cerebral vasospasm: a single-center experience with long-term follow-up.

Background: Cerebral vasospasm (CVS) is a leading cause of morbidity and mortality in patients after aneurysmal subarachnoid hemorrhage (aSAH). Endovascular treatment, including intraarterial infusion of drugs with vasodilation effects, and balloon- and stentriever angioplasty, are helpful but may achieve only short-term effects. There is a clinical need for long-lasting treatment of refractory recurrent vasospasm.

An open approach to a ruptured common iliac artery aneurysm with resultant ilio-iliac arteriovenous fistula.

Objective: Presentations of a spontaneous ilio-iliac arteriovenous fistula are considered a rare occurrence and warrant urgent intervention. They are usually a result following trauma, previous surgery or uncommonly from a ruptured aneurysm.

Method: We describe a case of a patient presenting with general malaise who examined to have a pulsatile abdominal mass with an associated bruit.