title: Early- and Mid-term Results of the Chimney Technique in the Repair of Aortic Arch Pathologies.
abstract: OBJECTIVE
  To examine the safety, feasibility, and mid-term efficacy of the chimney technique for aortic arch pathologies.
  
  
  METHODS
  From February 2011 to December 2014, a total of 35 patients (30 men; mean age 54.3 ± 14.1 years) with aortic arch pathologies underwent thoracic endovascular aortic repair combined with chimney stents. The indication was a proximal landing zone <1.5 cm. Follow-up was performed at 3, 6, and 12 months and then yearly thereafter.
  
  
  RESULTS
  A total of 36 chimney stents were deployed (innominate artery, n = 1; left common carotid artery, n = 9; right subclavian artery, n = 1; left subclavian artery, n = 25). The technical success rate was 94.3 % (33/35). Immediate type Ia endoleaks (ELIa) were observed in two patients (8.6 %, 2/35). Twenty-five patients were successfully followed-up for a median period of 29.3 months (range, 6-48 months). One patient died due to aortic dissection aneurysm rupture at 36 months (mortality rate of 4 %, 1/25). Three late ELIa were observed and no reinterventions were performed. The overall incidence of ELIa was 20 % (5/25). During follow-up, the patency rate for chimney stents was 92 % (23/25).
  
  
  CONCLUSIONS
  Our limited experience demonstrates that the chimney technique is a viable and relatively safe treatment for patients with challenging thoracic aortic pathologies at least in the mid-term follow-up period.
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
authors: Junjie
authors: J
authors: Zou
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China. wishlucky@163.com.
authors: Yuanyong
authors: Y
authors: Jiao
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
authors: Xiwei
authors: X
authors: Zhang
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
authors: Jun
authors: J
authors: Jiang
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
authors: Hongyu
authors: H
authors: Yang
authors: Division of Vascular Surgery, Department of General Surgery, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
authors: Hao
authors: H
authors: Ma
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001013:Aorta, Thoracic / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000601:surgery; D001018:Aortic Diseases / Q000601:surgery*; D001019:Aortic Rupture / Q000209:etiology; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods*; D057867:Endoleak / Q000209:etiology; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology; D016896:Treatment Outcome
keywords: Aorta; Chimney technique; Penetrating aortic ulcer; Thoracic; Thoracic aortic aneurysm; Thoracic aortic dissection; Thoracic endovascular aortic repair