Application of chimney technique in thoracic endovascular aneurysm repair of aortic arch lesion without good landing zone        ZHANG Xi-wei, YANG Hong-yu, ZOU Jun-jie, et al. Department of Vascular Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210019, China
Corresponding author: ZOU Jun-jie, E-mail: junjiezou1974@gmail.com
Abstract    Objective    To evaluate the feasibility of chimney technique in thoracic endovascular aneurysm repair (TEVAR) of aortic arch lesion without good landing zone. Methods    The clinical data of 31 cases of aortic arch lesion without good landing zone treated by chimney technique in TEVAR from January 2011 to May 2012 in the First Affiliated Hospital of Nanjing Medical University were analyzed retrospectively. Results    Thirty-two chimney stents were deployed in the 31 cases successfully. Endoleakage happened in only 1 case of double chimney stents during the follow-up period of 3 months. Conclusion    Chimney technique expands the applicability of TEVAR to patients with challenging anatomy. It is a safe, effective and microinvasive method in the treatment of aortic lesions recently and the therapeutic effect of long term still need to be studied.