Outcomes of Chimney Thoracic Endovascular Aortic Repair for an Aortic Arch Aneurysm

Annals of Vascular Surgery
Yuji KanaokaHiromasa Tachihara

Abstract

Chimney thoracic endovascular aneurysm repair (TEVAR) has advantages that include no requirements for special devices; however, problems have been identified such as gutter leaks. The aim of this study is to evaluate the short- and mid-term results of TEVAR with chimney technique including the safety, efficacy, and risk factors for occurrence of gutter endoleak in this technique. A retrospective single-center study was conducted on 55 consecutive patients who underwent first-time chimney TEVAR for arch aneurysms in the past 7 years. This consisted of 33 cases of single-chimney (SC) TEVAR and 22 cases of double-chimney (DC) TEVAR. The outcomes of these 55 cases of SC-TEVAR and DC-TEVAR were retrospectively examined. Risk factors for endoleaks in chimney TEVAR were also examined. Operative mortalities of 3.0% and 4.5% were observed in SC-TEVAR and DC-TEVAR, respectively. Incidences of stroke were 12.1% in the SC-TEVAR and 4.5% in the DC-TEVAR, resulting in endoleaks in 16 patients (48.5%) in SC-TEVAR and 6 patients (27.3%) in DC-TEVAR. Only 1 of the 77 chimney grafts was occluded, with a patency rate of 98.7%. SC-TEVAR and small distance from the common carotid artery were the risk factors of type I endoleaks. Overall survival ra...Continue Reading

Citations

Nov 11, 2020·Journal of Cardiac Surgery·Yunus AhmedJoost A van Herwaarden
Apr 28, 2020·The Annals of Thoracic Surgery·Chun-Sheng LiZhong-Ya Yan
Sep 26, 2020·The Annals of Thoracic Surgery·Yaojun DunCuntao Yu
Apr 2, 2021·Journal of Biomechanics·Shirly SteinlaufIdit Avrahami
Sep 16, 2021·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Chang ShuMo Wang

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