• Guang Tong, Shuang Zhao, Jinlin Wu, Zhongchan Sun, Donglin Zhuang, Zerui Chen, Yaorong Liu, Yongchao Yang, Ruixin Fan, and Tucheng Sun.
• Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China; Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
• J. Thorac. Cardiovasc. Surg. 2024 Jul 1; 168 (1): 5059.e650-59.e6.

ObjectiveThe right axillary artery is currently recommended for arterial cannulation in surgery for acute type A aortic dissection. However, the feasibility of cannulation on a dissected right axillary artery remains undetermined. The objective was to examine the feasibility of cannulation on a dissected right axillary artery.MethodsFrom 2016 to 2020, 835 patients who underwent acute type A aortic dissection repair were included in this study. Cannulation strategy and perioperative outcomes of patients who did and did not have right axillary artery dissection were compared. Propensity score matching and logistic regression were applied.ResultsA total of 124 patients had right axillary artery dissection, and 711 patients did not. Direct right axillary artery cannulation was used for cardiopulmonary bypass in the majority of patients, but with a lower rate in patients with right axillary artery dissection (n = 88 [71.0%] vs n = 579 [81.4%], P = .007). Right axillary artery cannulation failure (n = 3 [2.4%] vs n = 5 [0.7%], P = .102) and related complications (n = 1 [0.8%] vs n = 6 [0.8%], P = 1.000) were rare in both groups. In-hospital mortality (n = 18 [14.5%] vs n = 59 [8.3%], P = .027) and stroke (n = 14 [11.3%] vs n = 42 [5.9%], P = .027) were significantly higher in the right axillary artery dissection group, but after propensity score matching, in-hospital outcomes were comparable. Right axillary artery dissection was not a risk factor for mortality, stroke, right axillary artery cannulation not performed, or right axillary artery cannulation failure.ConclusionsDirect right axillary artery cannulation is feasible for most patients with acute type A aortic dissection with right axillary artery dissection.Copyright © 2022. Published by Elsevier Inc.

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