TY - JOUR
T1 - Aortic Remodeling and Clinical Outcomes in Type B Aortic Dissection According to the Timing of Thoracic Endovascular Aortic Repair
AU - Lee, Seung Jun
AU - Kang, Woong Chol
AU - Ko, Young Guk
AU - Woo, Yeongmin
AU - Ahn, Chul Min
AU - Won, Jong Youn
AU - Lee, Do Yun
AU - Hong, Sung Jin
AU - Kim, Jung Sun
AU - Kim, Byeong Keuk
AU - Choi, Donghoon
AU - Hong, Myeong Ki
AU - Jang, Yangsoo
N1 - Publisher Copyright:
© 2020 Elsevier Inc.
PY - 2020/8
Y1 - 2020/8
N2 - Background: The objective of the study was to investigate aortic remodeling and clinical outcomes after thoracic endovascular aortic repair (TEVAR) for type B aortic dissection (AD) according to timing of the procedure. Methods: A total of 87 patients with type B AD who underwent TEVAR at 2 centers were included in this retrospective analysis. Patients were divided into acute/subacute (≤6 weeks, n = 35), early chronic (6 weeks to 1 year, n = 20), and late chronic (>1 year, n = 32) groups according to the timing of TEVAR after symptom onset. Changes in aorta dimensions on serial computed tomography angiograms and clinical outcomes were evaluated. Results: AD complications were the most common indication for TEVAR in the acute/subacute group, whereas aortic expansion was the main reason in the early and late chronic groups. Maximum total aorta diameter (46.6 ± 10.6 vs. 54.8 ± 9.8 vs. 56.7 ± 10.1 mm, P < 0.001) and false lumen diameter (30.9 ± 11.0 vs. 35.2 ± 12.0 vs. 39.9 ± 13.4 mm, P = 0.013) were smaller in the acute/subacute group than in the early and late chronic groups. At 1-year follow-up, maximum total aorta diameter was decreased in the acute/subacute and early chronic groups and increased in the late chronic group (−4.3 ± 9.3 vs. −5.2 ± 6.9 vs. 2.5 ± 4.6 mm, P < 0.001). Survival free from the major adverse aortic event (death, aortic rupture, or reintervention) at 5 years after TEVAR was lowest in the late chronic group (92.6% vs. 88.2% vs. 73.1%, P = 0.033) but not significantly different between the acute/subacute and early chronic groups (P = 0.680). Conclusions: TEVAR in the acute/subacute and early chronic phases of type B AD resulted in similar aortic remodeling and clinical outcomes, which were more favorable than those with TEVAR performed during late chronic AD. This finding suggests 1 year after the onset of type B AD symptoms as the upper time threshold for TEVAR to achieve optimal aortic remodeling and safety.
AB - Background: The objective of the study was to investigate aortic remodeling and clinical outcomes after thoracic endovascular aortic repair (TEVAR) for type B aortic dissection (AD) according to timing of the procedure. Methods: A total of 87 patients with type B AD who underwent TEVAR at 2 centers were included in this retrospective analysis. Patients were divided into acute/subacute (≤6 weeks, n = 35), early chronic (6 weeks to 1 year, n = 20), and late chronic (>1 year, n = 32) groups according to the timing of TEVAR after symptom onset. Changes in aorta dimensions on serial computed tomography angiograms and clinical outcomes were evaluated. Results: AD complications were the most common indication for TEVAR in the acute/subacute group, whereas aortic expansion was the main reason in the early and late chronic groups. Maximum total aorta diameter (46.6 ± 10.6 vs. 54.8 ± 9.8 vs. 56.7 ± 10.1 mm, P < 0.001) and false lumen diameter (30.9 ± 11.0 vs. 35.2 ± 12.0 vs. 39.9 ± 13.4 mm, P = 0.013) were smaller in the acute/subacute group than in the early and late chronic groups. At 1-year follow-up, maximum total aorta diameter was decreased in the acute/subacute and early chronic groups and increased in the late chronic group (−4.3 ± 9.3 vs. −5.2 ± 6.9 vs. 2.5 ± 4.6 mm, P < 0.001). Survival free from the major adverse aortic event (death, aortic rupture, or reintervention) at 5 years after TEVAR was lowest in the late chronic group (92.6% vs. 88.2% vs. 73.1%, P = 0.033) but not significantly different between the acute/subacute and early chronic groups (P = 0.680). Conclusions: TEVAR in the acute/subacute and early chronic phases of type B AD resulted in similar aortic remodeling and clinical outcomes, which were more favorable than those with TEVAR performed during late chronic AD. This finding suggests 1 year after the onset of type B AD symptoms as the upper time threshold for TEVAR to achieve optimal aortic remodeling and safety.
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U2 - 10.1016/j.avsg.2020.03.022
DO - 10.1016/j.avsg.2020.03.022
M3 - Article
C2 - 32234394
AN - SCOPUS:85083780805
SN - 0890-5096
VL - 67
SP - 322
EP - 331
JO - Annals of Vascular Surgery
JF - Annals of Vascular Surgery
ER -