Aortenaneurysma: fenestrierte/gebranchte abdominale EVAR (fbEVAR) und fenestrierte/gebranchte thorakale EVAR (fbTEVAR). Ist die komplette endovaskuläre Therapie schon da?

Zusammenfassung

Fünf Jahre nach der ersten endovaskulären Aortenrekonstruktion (EVAR) berichten Park et al. über die erste Implantation einer fenestrierten Endoprothese. In der Zwischenzeit wurden mehrere fortgeschrittene Generationen von fenestrierten und gebranchten Prothesen entwickelt. Diese können in den meisten Fällen in 2 Gruppen unterteilt werden. Zur 1. Gruppe gehören die „custom-made“-Prothesen, die für elektive Operationen individuell für Patienten mit spezifischer Anatomie hergestellt werden. Eine 2. Gruppe bilden die sog. „off-the-shelf“-Prothesen, die sich durch vom Hersteller vergebene Charakteristika im Sinne von Länge, Breite und Durchmesser auszeichnen und bei allen Prothesen gleich sind. Die offene gefäßchirurgische Therapie der thorakoabdominellen Aortenaneurysmen ist selbst bei elektiven Eingriffen mit relevanter Mortalität und Morbidität assoziiert. Die Entwicklung von endovaskulären Modalitäten wie z. B. fenestrierte oder gebranchte endovaskuläre Aortenrekonstruktionen (F-EVAR, B-EVAR) ermöglichten die Nutzung weniger invasiver Prozeduren für die Behandlung der komplexen Aortenpathologien sowohl im thorakoabdominalen Abschnitt als auch im Aortenbogen. Eine umfassende Behandlung aller Segmente der Aorta mit endovaskulären Techniken wurde noch nicht vollständig evaluiert. Das Ziel dieses Artikels ist die Präsentation eines Überblicks der zurzeit verfügbaren endovaskulären Möglichkeiten der Behandlung von komplexen abdominellen und thorakoabdominellen Aortenaneurysmen, die sowohl eine komplexe thorakale als auch komplexe abdominale Versorgung benötigen.

Abstract

Five years after the first endovascular aortic repair (EVAR), Park et al. reported the first implantation of a fenestrated endoprosthesis. In the meantime, advanced generations of new fenestrated and branched endografts evolved. Endografts for complex pathologies are either so-called “off-the-shelf” grafts with predetermined length, width, diameter and clock position of the branches and fenestrations, predetermined by the manufacturer, “custom-made” grafts which need to be sized and planned individually for patients with specific thoracoabdominal anatomy. Open aortic repair in the treatment of thoracoabdominal aortic aneurysm (TAAA) still remains challenging and is associated with high morbidity and mortality, even in the elective setting. The ongoing development of endovascular treatment modalities, such as fenestrated and branched endovascular aneurysm repair (F-EVAR, B-EVAR), enables less invasive procedures for more challenging aortic pathologies. In recent years, extensive endovascular treatment of the aortic arch to the thoracoabdominal segment has become more and more important, but its outcomes have not been completely evaluated. The aim of this is article is to provide an overview of the currently available endovascular treatment options for complex aortic aneurysms requiring extensive coverage from the aortic arch to the infrarenal aorta.

Schlüsselwörter

endovaskuläre Therapie - Aortenaneurysma - Aortenstentprothese - Aortendissektion - Aortenchirurgie - Gefäßchirurgie

Key words

aortic aneurysm - aortic stent prosthesis - aortic surgery - aortic dissection - vascular surgery - endovascular surgery

Publikationsverlauf

Artikel online veröffentlicht:
13. Juli 2020

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