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  • Title: Late Complication after Thoracic Endovascular Aortic Repair: What Is the Role of an Open Surgical Conversion?
    Author: Davidovic L, Sladojevic M, Koncar I, Markovic M, Ulus T, Ilic N, Dragas M, Cvetic V, Rancic Z.
    Journal: Ann Vasc Surg; 2018 Feb; 47():238-246. PubMed ID: 28893704.
    Abstract:
    BACKGROUND: The aim was to evaluate the causes of thoracic endovascular aortic repair (TEVAR) failure and conversion to open surgery (COS) in a vascular center with high-volume open surgery and low-volume TEVAR procedures. METHODS: A total of 8 patients (6 men; mean age, 55.14 years) underwent COS after TEVAR. The indications for COS, intraoperative strategy, and early postoperative and mid-follow-up results were analyzed. RESULTS: The indications for COS were persistent proximal type I endoleak with progressive aneurysm enlargement in 2 patients, type III endoleak in 1 patient, progressive aneurysm enlargement with no endoleak in 1 patient, stent-graft migration in 2 patients, secondary aortoesophageal fistula in 1 patient, secondary aortoesophageal and aortobronchial fistula in 1 patient, and distal progression of the aneurysmal disease in 2 patients. In all but one patient, thoracic stent grafts were explanted, and replacement with a Dacron graft was performed using left partial cardiopulmonary bypass. In the remaining patients with disconnection of the distal component and unfavorable anatomy, the proximal stent graft was recycled, and the Dacron prosthesis was sewn to it. Patients with secondary aortobronchial and aortoesophageal fistulas required additional bronchial and esophageal repair. The in-hospital mortality rate was 50% (4 patients). Four (50%) patients were followed up between 7 and 24 months (mean, 16.75 months) without mortality. CONCLUSIONS: COS after TEVAR has a high mortality rate, and endovascular techniques should be considered as the first line of treatment. Those procedures should be performed by surgeons experienced in open repair which one might expect to be a challenging problem in the era of endovascular therapy.
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