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Papakonstantinou NA, Martinez-Lopez D, Chung JCY. The frozen elephant trunk: seeking a more definitive treatment for acute type A aortic dissection. Eur J Cardiothorac Surg 2024; 65:ezae176. [PMID: 38676575 DOI: 10.1093/ejcts/ezae176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/10/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024] Open
Abstract
OBJECTIVES Conventional treatment for type A aortic dissection includes replacement of the ascending aorta with an open distal anastomosis in the hemiarch position. The frozen elephant trunk (FET) is a hybrid technique that extends the repair to the descending thoracic aorta. The goal is to improve resolution of malperfusion syndrome and to induce positive aortic remodelling and reduce the need for reintervention on the downstream aorta. We aim to summarize the data on the short and long-term outcomes of this technique. METHODS A thorough search of the literature was conducted isolating all articles dealing with aortic remodelling after the use of FET in case of type A acute aortic dissection. Keywords 'aortic dissection', 'frozen elephant trunk', 'aortic remodelling' and 'false lumen thrombosis' were used. Data for type B and chronic aortic dissections were excluded. RESULTS FET use favourably influences aortic remodelling. The main advantages lie in the exclusion of distal entry tears in either the aortic arch or descending aorta thus restoring antegrade blood flow in the true lumen and inducing false lumen thrombosis. False lumen thrombosis is not only induced at the level of the stent deployment but also lower in the distal descending aorta. Moreover, it offers an adequate landing zone in the mid-descending aorta for second-stage endovascular or open surgical aortic repair, if needed. CONCLUSIONS FET can be advantageous in the treatment of acute type A aortic dissection dealing with extended aortic pathology.
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Affiliation(s)
- Nikolaos A Papakonstantinou
- 2nd Cardiac Surgery Department, Onassis Cardiac Surgery Center, Athens, Greece
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network and University of Toronto, Toronto, ON, Canada
| | - Daniel Martinez-Lopez
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network and University of Toronto, Toronto, ON, Canada
- Cardiac Surgery Department, Hospital Universitario Puerta de Hierro, Madrid, Spain
| | - Jennifer Chia-Ying Chung
- Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network and University of Toronto, Toronto, ON, Canada
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Porterie J, Hostalrich A, Dagenais F, Marcheix B, Chaufour X, Ricco JB. Hybrid Treatment of Complex Diseases of the Aortic Arch and Descending Thoracic Aorta by Frozen Elephant Trunk Technique. J Clin Med 2023; 12:5693. [PMID: 37685761 PMCID: PMC10488597 DOI: 10.3390/jcm12175693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023] Open
Abstract
The surgical management of acute and chronic complex diseases involving the aortic arch and the descending thoracic aorta remains challenging. Hybrid procedures associating total open arch replacement and stent-grafting of the proximal descending aorta were developed to allow a potential single-stage treatment, promote remodeling of the downstream aorta, and facilitate a potential second-stage thoracic endovascular aortic repair by providing an ideal landing zone. While these approaches initially used various homemade combinations of available conventional prostheses and stent-grafts, the so-called frozen elephant trunk technique emerged with the development of several custom-made hybrid prostheses. The aim of this study was to review the contemporary outcomes of this technique in the management of complex aortic diseases, with a special focus on procedural planning, organ protection and monitoring, refinements in surgical techniques, and long-term follow-up.
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Affiliation(s)
- Jean Porterie
- Department of Cardiovascular Surgery, Centre Hospitalier Universitaire de Toulouse, 31300 Toulouse, France;
| | - Aurélien Hostalrich
- Department of Vascular Surgery, Centre Hospitalier Universitaire de Toulouse, 31300 Toulouse, France; (A.H.); (X.C.)
| | - François Dagenais
- Department of Cardiovascular Surgery, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada;
| | - Bertrand Marcheix
- Department of Cardiovascular Surgery, Centre Hospitalier Universitaire de Toulouse, 31300 Toulouse, France;
| | - Xavier Chaufour
- Department of Vascular Surgery, Centre Hospitalier Universitaire de Toulouse, 31300 Toulouse, France; (A.H.); (X.C.)
| | - Jean-Baptiste Ricco
- Department of Vascular Surgery, Centre Hospitalier Universitaire de Poitiers, 86000 Poitiers, France;
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Mousavizadeh M, Bashir M, Jubouri M, Tan SZ, Borzeshi EZ, Ilkhani S, Banar S, Nakhaei P, Rezaei Y, Idhrees M, Hosseini S. Zone proximalization in frozen elephant trunk: what is the optimal zone for open intervention? A systematic review and meta-analysis. THE JOURNAL OF CARDIOVASCULAR SURGERY 2022; 63:265-274. [PMID: 35238527 DOI: 10.23736/s0021-9509.22.12292-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The treatment of complex aortic lesions involving the ascending, arch, and proximal descending aorta, remains challenging for surgeons despite the evolution of surgical techniques and aortic prostheses over decades. The frozen elephant trunk (FET) approach offers a one-stage repair of this entity of aortic pathologies. The main scope of this systematic review and meta-analysis is to evaluate the clinical outcomes and effectiveness of FET. EVIDENCE ACQUISITION In a systematic review, multiple electronic databases including EMBASE, Scopus, and PubMed/MEDLINE were searched from inception to June 2021 to identify relevant studies reporting on outcomes of total arch replacement (TAR) with FET. EVIDENCE SYNTHESIS Eighty-five studies met inclusion criteria, encompassing 10960 patients. Meta-analysis was conducted using the R-studio (RStudio, Boston, MA, USA) and STATA software (StataCorp LLC, College Station, TX, USA). The pooled in-hospital mortality rate was 7% (95% CI 0.05-0.09; I2=76%) and 12% for renal failure (95% CI 0.09-0.15; I2=88%), while the rates for paraplegia and cerebrovascular accidents were 3% (95% CI 0.02-0.04; I2=0%) and 6% (95% CI 0.05-0.08; I2=73%), respectively. Lower heterogeneity was attained after the stratification by the aortic pathologies, except for the renal failure. The distal anastomosis of the stent in zone 2 was significantly correlated with a lower renal failure development compared to zone 3 (odds ratio 0.52; 95% CI 0.33-0.82; P=0.069; I2=0%). CONCLUSIONS Our results indicate that the morbidities and mortality following TAR with FET were acceptable. We also associated the distal anastomosis in zone 2 with fewer renal failure development compared to that in zone 3.
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Affiliation(s)
- Mostafa Mousavizadeh
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohamad Bashir
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran - .,Vascular and Endovascular Surgery, Health Education, and Improvement Wales (HEIW), Velindre University NHS Trust, Cardiff, UK.,Institute of Cardiac and Aortic Disorders (ICAD), SRM Institutes for Medical Science (SIMS Hospital), Chennai, Tamil Nadu, India
| | - Matti Jubouri
- Hull York Medical School, University of York, York, UK
| | - Sven Z Tan
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Elahe Z Borzeshi
- School of Public Health and Safety, Department of Epidemiology, Shahid Beheshti University of Medical Sciences Tehran, Iran
| | - Saba Ilkhani
- Department of Surgery and Vascular Surgery, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepideh Banar
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Pooria Nakhaei
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Rezaei
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammed Idhrees
- Institute of Cardiac and Aortic Disorders (ICAD), SRM Institutes for Medical Science (SIMS Hospital), Chennai, Tamil Nadu, India
| | - Saeid Hosseini
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Bashir M, Abo Aljadayel H, Mousavizadeh M, Daliri M, Rezaei Y, Tan SZ, Mohammed I, Hosseini S. Correlation of coagulopathy and frozen elephant trunk use in aortic arch surgery: A systematic review and meta-analysis. J Card Surg 2021; 36:4699-4714. [PMID: 34550616 DOI: 10.1111/jocs.16001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND The advent of frozen elephant trunk (FET) for reconstruction of elective and nonelective aortic arch surgery has augmented the treatment of complex aortic pathologies in a single-stage operation. To date, no studies have been focused on the prevalence and predictors of coagulopathy potentiated by FET procedure. METHODS In a systematic review, we searched databases up to June 2020 to find studies reporting coagulopathy complications after FET procedure. A proportional meta-analysis was carried out using STATA software (StataCorp). RESULTS A total of 46 studies consisting of 6313 patients were eligible. The pooled estimation of reoperation for postoperative bleeding was 7% (95% confidence interval [CI:] 5-8; I2 = 84.73%; reported by 39 studies including 4796 patients). The mean volume of transfused packed blood cells and fresh frozen plasma was 1677 ml (95% CI: 1066.4-2287.6) and 1016.5 ml (95% CI: 450.7-1582.3). The subgroup by the stent type showed a decrease in the heterogeneity (I2 = 0.01%, I2 = 53.95%, I2 = 0.01%, and I2 = 54.41% for Thoraflex® Hybrid, E-vita®, Frozenix®, and Cronus®, respectively). The subgroup by the chronicity of operation resulted in less heterogeneity among patients undergoing elective compared with nonelective operation (I2 = 29.22% vs. I2 = 80.56% in nonelective). Meta-regression analysis showed that age and male gender significantly impacted on the reoperation for postoperative bleeding. CONCLUSIONS The FET procedure for arch replacement is associated with coagulopathy complications and the transfusion of blood products. Male, age, and selective choice of FET use were found to be the heterogeneity sources of reoperation for postoperative bleeding.
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Affiliation(s)
- Mohamad Bashir
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.,Institute of Cardiac and Aortic Disorders (ICAD), SRM Institutes for Medical Science (SIMS Hospital), Chennai, Tamil Nadu, India.,Vascular and Endovascular Surgery, Velindre University NHS Trust, Health & Education Improvement Wales (HEIW), Wales, UK
| | - Hadi Abo Aljadayel
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mostafa Mousavizadeh
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Daliri
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Yousef Rezaei
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sven Zcp Tan
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Idhrees Mohammed
- Institute of Cardiac and Aortic Disorders (ICAD), SRM Institutes for Medical Science (SIMS Hospital), Chennai, Tamil Nadu, India
| | - Saeid Hosseini
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Reid G, Mork C, Mujagic E, Berdajs D. Simple endovascular thoracic aortic stenting rescues a wrongly deployed frozen elephant trunk during a modified procedure. J Int Med Res 2021; 49:300060520986710. [PMID: 33535858 PMCID: PMC7869178 DOI: 10.1177/0300060520986710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
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.
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Affiliation(s)
- Gregory Reid
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Constantin Mork
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
| | - Edin Mujagic
- Department of Vascular Surgery, University Hospital Basel, Basel, Switzerland
| | - Denis Berdajs
- Department of Cardiac Surgery, University Hospital Basel, Basel, Switzerland
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Rezaei Y, Bashir M, Mousavizadeh M, Daliri M, Aljadayel HA, Mohammed I, Hosseini S. Frozen elephant trunk in total arch replacement: A systematic review and meta-analysis of outcomes and aortic proximalization. J Card Surg 2021; 36:1922-1934. [PMID: 33665866 DOI: 10.1111/jocs.15452] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM OF THE STUDY The frozen elephant trunk (FET) procedure became a popular entity for utilization in aortic arch aneurysm disease. However, its proper mortality and morbidities as well as the predictors of outcomes are poorly identified. This systematic review and meta-analysis explore FET outcomes and its predictors with a focus on zone aortic proximalization. METHODS We searched PubMed/MEDLINE, EMBASE, and Scopus databases from their beginning to June 2020 to find studies reporting the outcomes of the FET procedure for the total arch replacement (TAR). RESULTS A total of 64 studies including 7967 patients were evaluated. The pooled estimates of cerebrovascular accidents, paraplegia, renal failure, and in-hospital mortality were 7.104 (95% confidence interval [CI], 5.691-8.661; I2 = 78.53%), 3.465 (95% CI, 2.852-4.136; I2 = 15.96), 14.969 (95% CI, 11.361-18.977; I2 = 91.26%), and 8.933 (95% CI, 7.128-10.919; I2 = 78.51%), respectively. Stratification by the geographical locations and by the aortic pathologies led to lower heterogeneity, but not for renal failure. The distal anastomosis in Zone 2 was associated with a lower rate of renal failure compared with Zone 3 (odds ratio, 0.54; 95% CI, 0.36-0.81; p = .003; I2 = 0%). CONCLUSIONS The FET procedure for TAR can be performed with acceptable mortality and morbidities among patients with complex aortic pathologies. Moreover, the distal anastomosis in Zone 2 was associated with lower renal failure compared to Zone 3.
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Affiliation(s)
- Yousef Rezaei
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohamad Bashir
- Department of Vascular and Endovascular Surgery, Royal Blackburn Teaching Hospital, Blackburn, UK
| | - Mostafa Mousavizadeh
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Daliri
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hadi Abo Aljadayel
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Idhrees Mohammed
- Institute of Cardiac and Aortic Disorders (ICAD), SRM Institutes for Medical Science (SIMS Hospital), Chennai, Tamil Nadu, India
| | - Saeid Hosseini
- Heart Valve Disease Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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