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Late patency of reconstructed visceral arteries after open repair of thoracoabdominal aortic aneurysm.

Abstract：

BACKGROUND:In the era of rising endovascular treatment of thoracoabdominal aortic aneurysms (TAAAs), the analysis of visceral vessel (VV) patency after open surgical repair is crucial to provide a future benchmark between these different approaches. This study reports the late outcomes of a single-center experience with open TAAA repair, focusing on the results of different techniques adopted for renal and splanchnic revascularization. METHODS:Data were analyzed for 382 consecutive open TAAA repairs performed between January 2009 and July 2015 (284 men; mean age, 66 ± 10 years). Follow-up of surviving patients was carried out by computed tomography angiography and office checkups at 3 and 12 months and yearly afterward. Kaplan-Meier analysis was performed for overall survival, patency of reconstructed VVs (celiac trunk, superior mesenteric artery, right renal artery, left renal artery), and reinterventions on visceral arteries. Furthermore, VV long-term patency was analyzed in subgroups of patients according to the revascularization strategy (patch inclusion of all vessels, group 1; one-vessel separate reattachment and patch inclusion of the remaining vessels, group 2; separate reattachment of all VVs, group 3). RESULTS:In-hospital mortality and paraparesis/paraplegia occurred in 7.6% and 8.1% of patients, respectively. Among the 353 survivors, 338 complied with the follow-up protocol, and adequate computed tomography angiography images were available in 247 patients (952 VVs were analyzed). Overall follow-up survival was 94%, 91%, and 70% at 1 year, 2 years, and 5 years, respectively. At the same time points, VV patency was 99%, 98%, and 98% for celiac trunk; 100%, 100%, and 100% for superior mesenteric artery; 100%, 96%, and 96% for right renal artery; and 91%, 87%, and 82% for left renal artery (log-rank test, P < .0001). Estimates for reinterventions on VVs were 1.2%, 6.3%, and 17% at the same time points. Freedom from occlusion of any VV at 1 year and 3 years was 95% and 87% for group 1, 89% and 79% for group 2, and 92% and 92% for group 3, respectively (log-rank test, P = .13). CONCLUSIONS:Long-term patency of VVs after open TAAA repair performed in high-volume centers is high, regardless of the technique employed for revascularization. The left renal artery appears to be most prone to occlusion over time.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Kahlberg A,Ferrante AMR,Miloro R,Mascia D,Bertoglio L,Baccellieri D,Melissano G,Chiesa R

doi

10.1016/j.jvs.2017.08.067

subject

Has Abstract

pub_date

2018-04-01 00:00:00

pages

1017-1024

issue

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(17)32196-1

journal_volume

pub_type

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Late patency of reconstructed visceral arteries after open repair of thoracoabdominal aortic aneurysm.