scholarly journals Thoraflex hybrid as frozen elephant trunk in chronic, residual type A and chronic type B aortic dissection

2020 ◽  
Author(s):  
Mariafrancesca Fiorentino ◽  
Hector W L de Beaufort ◽  
Uday Sonker ◽  
Robin H Heijmen
Keyword(s):  
Thoracic Aorta ◽  
False Lumen ◽  
Frozen Elephant Trunk ◽  
True Lumen ◽  
Elephant Trunk ◽  
Stroke Incidence ◽  
The Status ◽  
Elephant Trunk Technique ◽  
Complete Thrombosis ◽  
Aortic Dissections

Abstract OBJECTIVES The frozen elephant trunk technique is an increasingly common treatment for extensive disease of the thoracic aorta. The objective of the study was to evaluate the outcomes of frozen elephant trunk specifically in chronic (residual) aortic dissections, focusing on downstream aortic remodelling. METHODS Between 2013 and 2019, a total of 28 patients were treated using the Vascutek Thoraflex hybrid graft at our institution for chronic dissections/post-dissection aneurysms. Immediate and follow-up outcomes were studied, as well as the changes in total aortic diameter, true lumen and false lumen diameter and the status of the false lumen at 3 different levels of the thoraco-abdominal aorta. RESULTS No in-hospital or 30-day mortality was observed, temporary paraparesis rate was 7% and disabling stroke incidence was 14.3%. Freedom from all-cause mortality at 2 years was 91.6 ± 5.7%, while freedom from reintervention on the downstream aorta at 2 years was 59.1 ± 10.8%. Positive aortic remodelling was achieved in 50.0%, with an enlargement in the true lumen and a reduction of the false lumen not only at the level of the proximal descending aorta with 73.1% of complete thrombosis but also at the level of the distal descending thoracic aorta, with 41.7% of complete thrombosis. CONCLUSIONS The frozen elephant trunk is a good solution in chronic (residual) downstream aortic dissections inducing positive aortic remodelling and preventing from II stage operations or allowing an endovascular approach.

scholarly journals Endovascular fenestration of aortic dissection membrane after failed frozen elephant trunk procedure

2019 ◽  
Author(s):  
Jan Raupach ◽  
Vendelin Chovanec ◽  
Veronika Kozakova ◽  
Jan Vojacek
Keyword(s):  
Aortic Dissection ◽  
False Lumen ◽  
Acute Type ◽  
Frozen Elephant Trunk ◽  
True Lumen ◽  
Elephant Trunk ◽  
Type A Aortic Dissection ◽  
Elephant Trunk Technique ◽  
Elephant Trunk Procedure ◽  
Frozen Elephant Trunk Technique

Abstract We report a case of a 51-year-old male with complicated acute type A aortic dissection who initially underwent a supracoronary and aortic arch replacement using frozen elephant trunk technique. False-lumen perfusion was revealed later which resulted in the collapse of the true lumen. Endovascular fenestration of the dissection flap was performed. True-lumen reperfusion with false-lumen regression was achieved. Endovascular fenestration using a re-entry catheter represents an efficient and safe treatment approach for this rare but serious complication.

scholarly journals Early and mid-term outcomes of total arch replacement with the frozen elephant trunk technique for type A acute aortic dissection

2019 ◽  
Vol 29 (5) ◽  
pp. 753-760 ◽  
Author(s):  
Akira Furutachi ◽  
Masanori Takamatsu ◽  
Eijiro Nogami ◽  
Kohei Hamada ◽  
Junji Yunoki ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Acute Aortic Dissection ◽  
False Lumen ◽  
Type A ◽  
Total Arch Replacement ◽  
Lumen Area ◽  
Frozen Elephant Trunk ◽  
True Lumen ◽  
Elephant Trunk ◽  
Elephant Trunk Technique

Abstract OBJECTIVES The aim of this study was to evaluate the outcomes of the frozen elephant trunk (FET) technique, using the J Graft FROZENIX for Stanford type A acute aortic dissection, in comparison with the unfrozen elephant trunk technique. METHODS Between January 2010 and August 2018, we performed total arch replacement for Stanford type A acute aortic dissection in our hospital. Thirty patients were treated by the elephant trunk procedure (ET group), and 20 patients were treated by the FET procedure (FET group). To evaluate aortic remodelling, we measured the area of the aorta, the true lumen and the false lumen at 12 months of follow-up. RESULTS Preoperative characteristics and operation time were not significantly different between the 2 groups. The quantity of blood transfused was much greater in the ET group than in the FET group. Resection or closure of the most proximal entry tear was obtained in 73.3% (22 out of 30 patients) in the ET group and 100% (20 out of 20 patients) in the FET group (P = 0.015). There was no case that had recurrent nerve palsy or paraplegia in the FET group. Stent graft-induced new entry occurred in 3 cases (15.8%) in the FET group. There were no significant differences between the 2 groups in aortic area, true lumen area or false lumen area. CONCLUSIONS Total arch replacement with the FET technique in Stanford type A acute aortic dissection carries a risk of distinct complications; however, with thorough advance planning, it should be possible to safely institute this treatment. Further randomization, with a comparison of each technique, is required to provide clear conclusions whether the FET is useful for acute Stanford type A aortic dissection.

scholarly journals Efficacy of entry exclusion strategy for DeBakey type III retrograde Stanford type A acute aortic dissection

2020 ◽  
Author(s):  
Yosuke Inoue ◽  
Hitoshi Matsuda ◽  
Jiro Matsuo ◽  
Takayuki Shijo ◽  
Atsushi Omura ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Acute Aortic Dissection ◽  
False Lumen ◽  
Type A ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Descending Aorta ◽  
Type Iii ◽  
Elephant Trunk Technique ◽  
Frozen Elephant Trunk Technique

Abstract OBJECTIVES Resection of a primary entry tear is essential for the treatment of Stanford type A acute aortic dissection (AAAD). In DeBakey type III retrograde AAAD (DBIII-RAAAD), resection of the primary entry tear in the descending aorta is sometimes difficult. The frozen elephant trunk technique and thoracic endovascular aortic repair (TEVAR) enable the closure of the primary entry in the descending aorta. The aim of this study was to investigate the efficacy of resection or closure of primary entry, i.e. entry exclusion, in patients with DeBakey type III retrograde-AAAD. METHODS The medical records of 654 patients with AAAD who underwent emergency surgery between January 2000 and March 2019 were retrospectively reviewed, and 80 eligible patients with DeBakey type III retrograde-AAAD were divided into the excluded (n = 50; age, 62 ± 12 years) and residual (n = 30; age, 66 ± 14 years) groups according to postoperative computed tomography angiographic data of the false lumen around the primary entry. The excluded group was defined as having a postoperative false lumen at the level of the elephant trunk or thrombosis of the endograft including primary entry. Patients with early false lumen enhancement around the elephant trunk or an unresected primary entry tear after isolated hemiarch replacement were included in the residual group. The early and long-term surgical outcomes were compared between the groups. RESULTS The in-hospital mortality rate was 8% (6/80), with no significant difference observed between the excluded and the residual groups (10% and 7%, respectively; P > 0.99). Ninety-five percentage of the patients (20/21) achieved entry exclusion with stent grafts including the frozen elephant trunk procedure and TEVAR. Spinal cord ischaemia was not observed in either group. The cumulative overall survival at 5 years was comparable between the 2 groups (76% and 81% in the excluded and residual groups, respectively; P = 0.93). The 5-year freedom from distal aortic reoperation rate was significantly higher in the excluded group (97%) than in the residual group (97% vs 66%; P = 0.008). CONCLUSIONS Not only resection but also closure using the entry exclusion approach for DeBakey type III retrograde-AAAD utilizing new technologies including the frozen elephant trunk technique and TEVAR might mitigate dissection-related reoperations.

Open distal anastomosis in the frozen elephant trunk technique: initial experiences and preliminary results of arch zone 2 versus arch zone 3†

2019 ◽  
Vol 56 (3) ◽  
pp. 564-571 ◽  
Author(s):  
Alessandro Leone ◽  
Luca Di Marco ◽  
Giuditta Coppola ◽  
Ciro Amodio ◽  
Marianna Berardi ◽  
...  
Keyword(s):  
Injury Rate ◽  
Distal Anastomosis ◽  
Neurological Dysfunction ◽  
Control Group ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Ischaemia Time ◽  
Elephant Trunk Technique ◽  
Aortic Dissections ◽  
Frozen Elephant Trunk Technique

Abstract OBJECTIVES We compared the results of 2 groups of patients who underwent aortic arch replacement with the frozen elephant trunk technique. In the first group, the distal anastomosis was performed in arch zone 2; in the second control group, the distal anastomosis was performed in arch zone 3. METHODS Between January 2007 and April 2018, the frozen elephant trunk technique was used in 282 patients. The median age was 62 years (range 18–83 years), and 233 patients were men (82.6%). Two different frozen elephant trunk prostheses were used: the Jotec E-vita open prosthesis in 167 patients (59.2%) and the Vascutek Thoraflex hybrid prosthesis in 115 patients (40.8%). Patients were divided into 2 groups according to the distal anastomosis site: zone 2 group (69 patients) and zone 3 group (213 patients). The main indications were chronic aortic dissection (n = 164, 58.2%), degenerative aneurysm (n = 72, 25.5%) and acute aortic dissections (n = 45, 16%). RESULTS The overall in-hospital mortality rate was 17%: 20% for the zone 2 group and 16% for the zone 3 group, without significant differences, also in terms of cardiopulmonary bypass and myocardial ischaemia times. However, the visceral ischaemia time was significantly shorter for the zone 2 group, whereas the antegrade selective cerebral perfusion time was significantly longer for the same group. Recurrent laryngeal nerve injury rate was lower in the zone 2 group. The overall postoperative paraplegia rate was 3.5%, whereas the occurrence of permanent neurological dysfunction and dialysis was 9% and 19%, respectively, with no significant differences between the groups. CONCLUSIONS ‘Proximalization’ of the distal anastomosis can be used for arch reconstruction, especially in complex cases such as reoperations or acute aortic dissections. Furthermore, with the aid of branched hybrid grafts, a reduction of the visceral ischaemia time is achieved.

scholarly journals 254 * EVALUATION OF THE DOWNSTREAM AORTA AFTER FROZEN ELEPHANT TRUNK REPAIR FOR AORTIC DISSECTIONS IN TERMS OF DIAMETER AND FALSE LUMEN STATUS

2014 ◽  
Vol 19 (suppl 1) ◽  
pp. S76-S76
Author(s):  
G. Weiss ◽  
D. Santer ◽  
S. V. Folkmann ◽  
J. Dumfarth ◽  
H. Pisarik ◽  
...  
Keyword(s):  
False Lumen ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Aortic Dissections

scholarly journals Reversed Frozen Elephant Trunk Technique to Treat a Type II Thoracoabdominal Aortic Aneurysm

2016 ◽  
Vol 24 (2) ◽  
pp. 277-280 ◽  
Author(s):  
E. Sebastian Debus ◽  
Tilo Kölbel ◽  
Sabine Wipper ◽  
Holger Diener ◽  
Beate Reiter ◽  
...  
Keyword(s):  
Stent Graft ◽  
Spinal Cord Ischemia ◽  
False Lumen ◽  
Thoracoabdominal Aortic Aneurysm ◽  
Aortic Aneurysms ◽  
Hybrid Technique ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Elephant Trunk Technique ◽  
Frozen Elephant Trunk Technique

Purpose: To describe a hybrid technique of reversed frozen elephant trunk to treat thoracoabdominal aortic aneurysms (TAAA) through an abdominal only approach. Technique: The technique is demonstrated in a 29-year-old Marfan patient with a chronic type B aortic dissection previously treated with a thoracic stent-graft who presented with a thoracoabdominal false lumen aneurysm. Through an open distal retroperitoneal approach to the abdominal aorta, a frozen elephant trunk graft was implanted over a super-stiff wire upside down with the stent-graft component in the thoracic aorta. Following deployment of the stent-graft proximally and preservation of renovisceral perfusion in a retrograde manner, the renovisceral vessels were sequentially anastomosed to the elephant trunk graft branches, thus reducing the ischemia time of the end organs. The aortic sac was then opened, and the distal part of the hybrid graft was anastomosed with a further bifurcated graft to the iliac vessels. Conclusion: The reversed frozen elephant trunk technique is feasible for hybrid treatment of TAAAs via an abdominal approach only. This has the benefit of substantially reducing the trauma of thoracic exposure, thus preserving major benefits of open thoracoabdominal surgery, such as the presence of short bypasses to the renovisceral vessels and reimplantation of lumbar arteries to reduce spinal cord ischemia.

scholarly journals Endovascular rescue for malpositioned frozen elephant trunk into the false lumen

2021 ◽  
Author(s):  
Daichi Takagi ◽  
Takuya Wada ◽  
Wataru Igarashi ◽  
Takayuki Kadohama ◽  
kentaro kiryu ◽  
...  
Keyword(s):  
Aortic Dissection ◽  
Transesophageal Echocardiography ◽  
Ultrasound Guidance ◽  
Acute Aortic Dissection ◽  
False Lumen ◽  
Frozen Elephant Trunk ◽  
True Lumen ◽  
Elephant Trunk ◽  
Descending Aorta ◽  
Intraoperative Transesophageal Echocardiography

We describe a case of frozen elephant trunk deployment unintentionally malpositioned into the false lumen. An 83-year-old man underwent total arch repair with a frozen elephant trunk for type A acute aortic dissection complicated by mesenteric malperfusion. However, intraoperative transesophageal echocardiography showed expansion of the false lumen in the descending aorta, suggesting a malpositioned frozen elephant trunk into the false lumen. Endovascular fenestration of the dissecting flap and subsequent endograft deployment from the inside of the malpositioned frozen elephant trunk graft to the true lumen of the descending aorta was successfully performed under intravascular ultrasound guidance.

Evaluation of the downstream aorta after frozen elephant trunk repair for aortic dissections in terms of diameter and false lumen status

2015 ◽  
Vol 49 (1) ◽  
pp. 118-124 ◽  
Author(s):  
Gabriel Weiss ◽  
David Santer ◽  
Julia Dumfarth ◽  
Harald Pisarik ◽  
Marie Luise Harrer ◽  
...  
Keyword(s):  
False Lumen ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Aortic Dissections

scholarly journals Simple endovascular thoracic aortic stenting rescues a wrongly deployed frozen elephant trunk during a modified procedure

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052098671
Author(s):  
Gregory Reid ◽  
Constantin Mork ◽  
Edin Mujagic ◽  
Denis Berdajs
Keyword(s):  
Computed Tomography ◽  
Thoracic Aorta ◽  
Computed Tomography Angiography ◽  
False Lumen ◽  
Distal Segment ◽  
Type I ◽  
Frozen Elephant Trunk ◽  
Elephant Trunk ◽  
Aortic Stenting ◽  
Elephant Trunk Procedure

We report a bail out approach of endovascular thoracic aorta repair following incorrect deployment of a modified frozen elephant trunk stent graft into the false lumen. A 76-year-old patient was admitted to our Emergency Department. A computed tomography angiography scan showed type I DeBakey aortic dissection. An emergency modified frozen elephant trunk procedure was performed. Immediate postoperative computed tomography angiography showed that the distal segment of the stent was deployed in the false lumen, probably through a re-entry tear at the descending thoracic aorta. Emergency endovascular repair of the thoracic aorta, as well as angioplasty of the superior mesenteric artery and left iliac artery, were performed.

scholarly journals The frozen elephant trunk technique in acute DeBakey type I aortic dissection

2020 ◽  
Vol 28 (3) ◽  
pp. 411-418
Author(s):  
Davut Çekmecelioğlu
Keyword(s):  
Aortic Dissection ◽  
Thoracic Aorta ◽  
Median Sternotomy ◽  
Type I ◽  
Frozen Elephant Trunk ◽  
Descending Thoracic Aorta ◽  
Elephant Trunk ◽  
Mortality And Morbidity ◽  
Elephant Trunk Technique ◽  
Frozen Elephant Trunk Technique

Although advances in the field of cardiovascular surgery have improved outcomes for patients with acute DeBakey type I aortic dissection, postoperative in-hospital mortality and morbidity remain substantial. The frozen elephant trunk technique has become a treatment option for this disease and was developed primarily to extend repair into the proximal descending thoracic aorta during aortic arch repair (because the descending thoracic aorta is largely inaccessible via median sternotomy), thus avoiding, delaying, or facilitating subsequent repair of residual native aorta. In this review, we discuss the evidence for and future development of frozen elephant trunk reconstruction for acute DeBakey type I aortic dissection.

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