scholarly journals Aortic balloon occlusion technique in total arch replacement with frozen elephant trunk after thoracic endovascular aortic repair

2020 ◽  
Vol 12 (5) ◽  
pp. 2474-2481
Author(s):  
Yaojun Dun ◽  
Yi Shi ◽  
Hongwei Guo ◽  
Yanxiang Liu ◽  
Bowen Zhang ◽  
...  
Perfusion ◽  
2019 ◽  
Vol 35 (4) ◽  
pp. 280-283
Author(s):  
Shujie Yan ◽  
Xiaogang Sun ◽  
Hongwei Guo ◽  
Yunfeng Li ◽  
Yu Zhao ◽  
...  

To ensure both cerebral and lower body perfusion during total arch replacement with frozen elephant trunk, aortic balloon occlusion technique has been applied in some cases at our institute. During the procedure, after stented elephant trunk is inserted into the true lumen of the descending aorta, an aortic balloon catheter is placed and inflated within the stented elephant trunk, occluding the orifice of descending aorta. Then, lower body perfusion is provided via femoral cannulae during distal aortic arch anastomosis. We describe the perfusion management strategy of the technique, elucidate intraoperative monitoring parameters, and clarify the feasibility of the method from the aspect of perfusion.


2020 ◽  
Vol 48 (5) ◽  
pp. 030006052090541
Author(s):  
Yunfeng Li ◽  
Shujie Yan ◽  
Song Lou ◽  
Xiaogang Sun

Objective To investigate the use of the aortic balloon occlusion technique to assist total aortic arch replacement (TAR) with frozen elephant trunk (FET) to shorten the lower body circulatory arrest (CA) time and raise the nadir temperature during cardiopulmonary bypass. Methods This retrospective study reviewed consecutive patients that underwent aortic balloon occlusion to assist TAR with FET and patients that received conventional TAR with FET procedures. Preoperative characteristics, perioperative characteristics and postoperative outcomes were compared between the two groups. Results The study included130 patients treated with aortic balloon occlusion and 230 patients treated with conventional TAR with FET. The 30-day mortality rate was similar between the aortic balloon occlusion and conventional groups (4.62% versus 7.83%, respectively). Multivariate analysis showed that aortic balloon occlusion reduced the incidence of acute kidney injury, hepatic injury and red blood cell transfusion. The application of aortic balloon occlusion reduced the mean ± SD CA time from 17.24 ± 4.36 min to 6.33 ± 5.74 min, with the target nadir nasal temperature being increased from 25°C to 28°C. Conclusion The aortic balloon occlusion technique achieved significant improvements in reducing complications, but this did not translate into lower 30-day mortality.


Author(s):  
Yunfeng Li ◽  
Hongwei Guo ◽  
Yi Shi ◽  
Yanxiang Liu ◽  
Xiaogang Sun

Abstract OBJECTIVES The aim of this study was to propose and evaluate the new operative technique of aortic balloon occlusion in total aortic arch replacement (TAR) with the frozen elephant trunk that can significantly decrease the time of circulatory arrest and increase the hypothermic cardiopulmonary bypass (CPB) temperature. METHODS Between 2010 and 2018, 1335 patients with aortic dissection who underwent TAR with the frozen elephant trunk were included in the study. The newest 80 cases were treated with aortic balloon occlusion. To illustrate the difference with the new procedure, 1255 conventional TAR cases served as the historical control. Femoral and right axillary artery cannulations were used for CPB and antegrade selective cerebral perfusion. Circulatory arrest was implemented at the nasopharyngeal temperature of 28°C with continuous antegrade selective cerebral perfusion. After the stent graft was inserted into the true lumen of the descending aorta, the aortic balloon in a sheath was deployed into the stent graft and positioned at the metal part of the stent graft. When the balloon was inflated with enough saline to compress the stent graft, the sheath was simultaneously pressed by hand to properly fix the balloon and avoid displacement. Then femoral perfusion could be resumed. RESULTS The aortic balloon occlusion technique was successful in all patients, with the median duration of circulatory arrest being 5 (interquartile range 3–7) min. The 30-day mortality rate was 6.25% (5/80), whereas with the conventional method it was 9.40% (118/1255). The postoperative conscious revival (8.67 vs 11.40 h, P < 0.001) and mechanical ventilation times (19.70 vs 24.45 h, P = 0.02) were significantly shorter. Decreases in postoperative acute kidney injuries (13.75% vs 32.11%, P = 0.001) and liver injuries (8.75% vs 37.61%, P < 0.001) were also observed. The patients were transfused with lesser quantities of red blood cells, plasma and platelets. CONCLUSIONS The aortic balloon occlusion technique is a feasible way to shorten circulatory arrest significantly, to obviate the need for deep hypothermia in TAR with the frozen elephant trunk and to provide favourable protective effects on the central nervous, haematological and visceral systems. With these satisfactory results, this technique deserves further investigation.


2020 ◽  
Vol 30 (6) ◽  
pp. 947-949
Author(s):  
Motoharu Kawashima ◽  
Yoshikatsu Nomura ◽  
Masamichi Matsumori ◽  
Hirohisa Murakami

Abstract We report a rare case of bail-out thoracic endovascular aortic repair after incorrect deployment of a frozen elephant trunk into the false lumen. A 54-year-old man presented to our department complaining of chest pain. Enhanced computed tomography revealed Stanford type A acute aortic dissection, which had a large entry site at the mid-descending aorta. Emergency total aortic arch replacement with a frozen elephant trunk was performed. Progressive intraoperative acidosis was observed. Immediate postoperative enhanced computed tomography showed that the distal end of the frozen elephant trunk was deployed into the false lumen through the initial tear at the proximal descending aorta. We performed emergency thoracic endovascular aortic repair through a fenestration made into the intimal flap using an Outback LTD re-entry device. The patient was discharged home on postoperative day 67 after a complete recovery.


2017 ◽  
Vol 52 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Koji Hirano ◽  
Toshiya Tokui ◽  
Bun Nakamura ◽  
Ryosai Inoue ◽  
Masahiro Inagaki ◽  
...  

The chimney technique can be combined with thoracic endovascular aortic repair (TEVAR) to both obtain an appropriate landing zone and maintain blood flow of the arch vessels. However, surgical repair becomes more complicated if retrograde type A aortic dissection occurs after TEVAR with the chimney technique. We herein report a case involving a 73-year-old woman who developed a retrograde ascending dissection 3 months after TEVAR for acute type B aortic dissection. To ensure an adequate proximal sealing distance, the proximal edge of the stent graft was located at the zone 2 level and an additional bare stent was placed at the left subclavian artery (the chimney technique) at the time of TEVAR. Enhanced computed tomography revealed an aortic dissection involving the ascending aorta and aortic arch. Surgical aortic repair using the frozen elephant trunk technique was urgently performed. The patient survived without stroke, paraplegia, renal failure, or other major complications. Retrograde ascending dissection can occur after TEVAR combined with the chimney technique. The frozen elephant trunk technique is useful for surgical repair in such complicated cases.


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