Results of using thoraflextm hybrid prothesis for the treatment of complex aortic disease at Viet Duc University Hospital

Abstract

Background: The aim of this study was to introduce and evaluate the early results after the frozen elephant trunk (FET) procedure with ThoraflexTM Hybrid prothesis for the treatment of complex aortic disease at Viet Duc University Hospital. Methods: This is a retrospective descriptive study of all acceptable patients after the frozen elephant trunk (FET) procedure with ThoraflexTM Hybrid prothesis at Viet Duc University Hospital from January 2021 to May 2023. Results: There were 21 patients with a male rate of 85.7% and an average age 58.2±10 years old (range 40–73). History of patients with hypertension: 19 (90.5%); post-dissection aortic aneurysm: 2 (9.5%) patients. By cause, the number of patients with thoracic aortic aneurysm was 03 (14.3%), acute aortic dissection type A was 16 (76.1%), and aortic dissection type B was 02 (9.5%). In which there were 16 cases of emergency surgery (76.1%). Replacement of the aortic arch was performed under moderate hypothermic (280 °C on average) circulatory arrest and bilateral selective antegrade cerebral perfusion with permanent monitoring of cerebral tissue oxygenation by the MASIMO machine. Average cardio-pulmonary bypass time, aortic cross clamp time, distal hypothermic circulatory arrest time, and operating time were 137,5±22,9 minutes; 86,3±17,6 minutes; 25,2±8,9 minutes; and 7,7±10,3 hours. The average ventilation time, length of intensive care unit stay, and hospital stay were 7,2±9,7 days, 18,8±20,7 days, and 19,9 ± 6,5 days. There was one patient with post-operative cerebrospinal fluid drainage. No patient had bleeding complications, recurrent nerve palsy, reoperation, or in-hospital mortality. Conclusion: The initial results after the frozen elephant trunk procedure with ThoraflexTM Hybrid prothesis for the treatment of complex aortic disease at Viet Duc University Hospital were safe, good, and feasible.