Endograft Collapse After Thoracic Endovascular Aortic Repair

Purpose: To report a case of chronic intermittent spinal cord ischemia (SCI) after thoracic endovascular aortic repair (TEVAR) and its successful treatment using hypogastric artery stenting. Case Report: A 79-year-old patient presented in May 2013 with a thoracic aortic aneurysm (TAA) and a contained rupture. He urgently underwent TEVAR that covered 274 mm of descending thoracic aorta without immediate postoperative signs of acute SCI. At 3-month follow-up, he reported repeating incidents of sudden lower extremity weakness leading to a fall with a humerus fracture. A neurological consultation revealed the tentative diagnosis of intermittent SCI caused by TEVAR and initially recommended a conservative approach. During the following year there was no clinical improvement of the symptoms. Computed tomography angiography showed a high-grade stenosis of the right hypogastric artery, which was stented in November 2014 to improve the collateral network of spinal cord perfusion. Following treatment, the patient had no further neurological symptoms; at 32 months after the reintervention, the imaging follow-up documented a patent stent and continued exclusion of the TAA. Conclusion: Intermittent neurological symptoms after TEVAR should be suspected as chronic intermittent SCI. The improvement of collateral networks of the spinal cord by revascularization of the hypogastric artery is a viable treatment option.

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Evaluation of Aortic Zone 2 Proximal Landing Accuracy During Thoracic Endovascular Aortic Repair Following Carotid-Subclavian Revascularization

Vascular and Endovascular Surgery ◽

10.1177/1538574421989851 ◽

2021 ◽

Vol 55 (4) ◽

pp. 355-360

Author(s):

Sally H. J. Choi ◽

Gary K. Yang ◽

Keith Baxter ◽

Joel Gagnon

Keyword(s):

Carotid Artery ◽

Common Carotid Artery ◽

Retrospective Review ◽

Average Distance ◽

Thoracic Endovascular Aortic Repair ◽

Endovascular Aortic Repair ◽

Aortic Repair ◽

Technical Accuracy ◽

Corrective Procedures

Background: Adequate seal for thoracic endovascular aortic repair (TEVAR) commonly requires landing in zone 2, but can prove to be challenging due to the tortuous and angulated anatomy of the region. Objectives: Our objective was to determine the proximal landing accuracy of zone 2-targeted TEVARs following carotid-subclavian revascularization (CSR) and its impact on clinical outcomes. Methods: Retrospective review of patients that underwent CSR for zone 2 endograft delivery at a tertiary institute between January 2008 and March 2018 was conducted. Technical outcomes were assessed by examining the incidence of intraoperative corrective maneuvers, 1a endoleaks and reinterventions. Distance to target and incidence of LSA stump filling were examined as radiographic markers of landing accuracy. Results: Zone 2-targeted TEVAR with CSR was performed in 53 patients for treatment of dissections (49%), aneurysms (30%) or trauma (21%). Nine (17%) cases required intraoperative corrective procedures: 5 (9%) proximal cuffs due to type 1a endoleak and 4 (8%) left common carotid artery (LCCA) stenting due to inadvertent coverage. Cases performed using higher resolution hybrid fluoroscopy machine compared to mobile C-arm were associated with increased proximal cuff use (OR 8.8; 95% CI 1.2-62.4). Average distance between the proximal edge of the covered graft to LCCA was 8 ± 1 mm and larger distances were not associated with higher rates of 1a endoleak. Twenty-eight (53%) cases of antegrade LSA stump filling were noted on follow-up imaging, but were not associated with higher rates of reinterventions (OR 0.8, 95% CI [0.2-4.6]). Three (6%) patients had a stroke within 30 days and 4 (8%) patients expired within 1 month. Intraoperative corrective maneuvers, post-operative 1a endoleak and reinterventions were not associated with higher rates of stroke or mortality. Conclusion: Using current endografts and imaging modalities, zone 2-targeted TEVARs have suboptimal technical accuracy.

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Diagnostik und Therapie traumatischer Aortenverletzungen

Der Unfallchirurg ◽

10.1007/s00113-021-01044-0 ◽

2021 ◽

Author(s):

R. M. Benz ◽

V. Makaloski ◽

M. Brönnimann ◽

N. Mertineit ◽

H. von Tengg-Kobligk

Keyword(s):

Thoracic Endovascular Aortic Repair ◽

Endovascular Aortic Repair ◽

Sensitivität Und Spezifität ◽

Eine Hohe ◽

Aortic Repair ◽

Offene Chirurgie ◽

Diagnostik Und Therapie ◽

Grade Ii

Zusammenfassung Hintergrund Traumatische Aortenverletzungen (TAV) sind seltene Folgen von stumpfen Traumata, die eine hohe Mortalität und Morbidität aufweisen. Die schnelle und akkurate Diagnostik sowie die Wahl der korrekten Therapie sind für das Patientenüberleben elementar. Fragestellung Bestimmung des aktuellen Standards der Abklärung von TAV im akuten Trauma-Setting und Evaluation der aktuellen Leitlinien zur Therapie. Material und Methode Eine Literaturrecherche wurde durchgeführt, mit der Suche nach Publikationen, die die Abklärung und Diagnostik der TAV beschreiben. Außerdem wurden Leitlinien für die Behandlung und Nachsorge von TAV zusammengefasst. Ergebnisse In der Literatur wird trotz geringer Spezifität eine konventionelle Thoraxröntgenaufnahme als Initialdiagnostik genannt. Es sollte primär, als Modalität der Wahl, zur Diagnostik und zur Therapiestratifizierung eine Computertomographie (CT) aufgrund der hohen Sensitivität und Spezifität nachfolgen. In allen Leitlinien ist die thorakale endovaskuläre Aortenrekonstruktion („thoracic endovascular aortic repair“, TEVAR) die Therapie der Wahl bei höhergradigen TAV (Grade II–IV) und hat die offene Chirurgie in dem meisten Fällen abgelöst. Schlussfolgerung Nach einer kurzfristig erfolgten CT-Diagnostik und Einteilung wird die TEVAR der offenen Chirurgie bei therapiebedürftigen TAV vorgezogen.

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