Jun-Ming Zhu1, Rui-Dong Qi1, Yong-Min Liu1, Jun Zheng1, Xiao-Yan Xing1, Li-Zhong Sun2. 1. Beijing Aortic Disease Center, Beijing Institute of Heart, Lung and Blood Vessel Diseases & Beijing Anzhen Hospital, Capital Medical University, Beijing, China. 2. Beijing Aortic Disease Center, Beijing Institute of Heart, Lung and Blood Vessel Diseases & Beijing Anzhen Hospital, Capital Medical University, Beijing, China lizhongsun@outlook.com.
Abstract
OBJECTIVES: An aberrant right subclavian artery (ARSA) is one of most common congenital anomalies, but the coexistence of type B dissection and an ARSA is extremely rare. Repair of type B dissection poses a technical challenge due to an ARSA. We retrospectively reviewed our experience of surgical treatment of a complicated type B dissection with an ARSA. METHODS: From August 2010 to March 2014, 7 patients with chronic type B dissection with an ARSA underwent the stented elephant trunk procedure under hypothermic cardiopulmonary bypass in our centre. The mean age was 45 ± 7 (range, 32-54) years. Total arch replacement was performed in 2 patients. Revascularization of the ARSA was done in 5 of 7 patients. RESULTS: There were no in-hospital deaths. The mean time of mechanical ventilation and stay in the intensive care unit was 22 ± 11 and 53 ± 11 h, respectively. Neurological deficit, visceral ischaemia or injury to the spinal cord was not observed. Right upper-limb ischaemia was not observed in patients without ARRA revascularization during follow-up. CONCLUSIONS: In patients not undergoing descending aortic replacement, the stented elephant trunk method is our preferred procedure for this anomaly via a median sternotomy. Repair of type B dissection and revascularization of the ARSA were achieved in a single stage using this technique. Satisfactory surgical results and follow-up outcomes were obtained. There was no right upper-limb ischaemia or neurological deficit in patients without ARSA revascularization, but revascularization of the ARSA is recommended for this vessel anomaly.
OBJECTIVES: An aberrant right subclavian artery (ARSA) is one of most common congenital anomalies, but the coexistence of type B dissection and an ARSA is extremely rare. Repair of type B dissection poses a technical challenge due to an ARSA. We retrospectively reviewed our experience of surgical treatment of a complicated type B dissection with an ARSA. METHODS: From August 2010 to March 2014, 7 patients with chronic type B dissection with an ARSA underwent the stented elephant trunk procedure under hypothermic cardiopulmonary bypass in our centre. The mean age was 45 ± 7 (range, 32-54) years. Total arch replacement was performed in 2 patients. Revascularization of the ARSA was done in 5 of 7 patients. RESULTS: There were no in-hospital deaths. The mean time of mechanical ventilation and stay in the intensive care unit was 22 ± 11 and 53 ± 11 h, respectively. Neurological deficit, visceral ischaemia or injury to the spinal cord was not observed. Right upper-limb ischaemia was not observed in patients without ARRA revascularization during follow-up. CONCLUSIONS: In patients not undergoing descending aortic replacement, the stented elephant trunk method is our preferred procedure for this anomaly via a median sternotomy. Repair of type B dissection and revascularization of the ARSA were achieved in a single stage using this technique. Satisfactory surgical results and follow-up outcomes were obtained. There was no right upper-limb ischaemia or neurological deficit in patients without ARSA revascularization, but revascularization of the ARSA is recommended for this vessel anomaly.
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