102 results on '"Baikoussis NG"'
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2. Strategies to prevent intraoperative lung injury during cardiopulmonary bypass.
- Author
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Apostolakis EE, Koletsis EN, Baikoussis NG, Siminelakis SN, Papadopoulos GS, Apostolakis, Efstratios E, Koletsis, Efstratios N, Baikoussis, Nikolaos G, Siminelakis, Stavros N, and Papadopoulos, Georgios S
- Abstract
During open heart surgery the influence of a series of factors such as cardiopulmonary bypass (CPB), hypothermia, operation and anaesthesia, as well as medication and transfusion can cause a diffuse trauma in the lungs. This injury leads mostly to a postoperative interstitial pulmonary oedema and abnormal gas exchange. Substantial improvements in all of the above mentioned factors may lead to a better lung function postoperatively. By avoiding CPB, reducing its time, or by minimizing the extracorporeal surface area with the use of miniaturized circuits of CPB, beneficial effects on lung function are reported. In addition, replacement of circuit surface with biocompatible surfaces like heparin-coated, and material-independent sources of blood activation, a better postoperative lung function is observed. Meticulous myocardial protection by using hypothermia and cardioplegia methods during ischemia and reperfusion remain one of the cornerstones of postoperative lung function. The partial restoration of pulmonary artery perfusion during CPB possibly contributes to prevent pulmonary ischemia and lung dysfunction. Using medication such as corticosteroids and aprotinin, which protect the lungs during CPB, and leukocyte depletion filters for operations expected to exceed 90 minutes in CPB-time appear to be protective against the toxic impact of CPB in the lungs. The newer methods of ultrafiltration used to scavenge pro-inflammatory factors seem to be protective for the lung function. In a similar way, reducing the use of cardiotomy suction device, as well as the contact-time between free blood and pericardium, it is expected that the postoperative lung function will be improved. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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3. Left ventricular diastolic dysfunction of the cardiac surgery patient; a point of view for the cardiac surgeon and cardio-anesthesiologist.
- Author
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Apostolakis EE, Baikoussis NG, Parissis H, Siminelakis SN, Papadopoulos GS, Apostolakis, Efstratios E, Baikoussis, Nikolaos G, Parissis, Haralabos, Siminelakis, Stavros N, and Papadopoulos, Georgios S
- Abstract
Background: Left ventricular diastolic dysfunction (DD) is defined as the inability of the ventricle to fill to a normal end-diastolic volume, both during exercise as well as at rest, while left atrial pressure does not exceed 12 mm Hg. We examined the concept of left ventricular diastolic dysfunction in a cardiac surgery setting.Materials and Methods: Literature review was carried out in order to identify the overall experience of an important and highly underestimated issue: the unexpected adverse outcome due to ventricular stiffness, following cardiac surgery.Results: Although diverse group of patients for cardiac surgery could potentially affected from diastolic dysfunction, there are only few studies looking in to the impact of DD on the postoperative outcome; Trans-thoracic echo-cardiography (TTE) is the main stay for the diagnosis of DD. Intraoperative trans-oesophageal (TOE) adds to the management. Subgroups of DD can be defined with prognostic significance.Conclusion: DD with elevated left ventricular end-diastolic pressure can predispose to increased perioperative mortality and morbidity. Furthermore, DD is often associated with systolic dysfunction, left ventricular hypertrophy or indeed pulmonary hypertension. When the diagnosis of DD is made, peri-operative attention to this group of patients becomes mandatory. [ABSTRACT FROM AUTHOR]- Published
- 2009
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4. Intramural haematoma of the thoracic aorta: who's to be alerted the cardiologist or the cardiac surgeon?
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Baikoussis NG, Apostolakis EE, Siminelakis SN, Papadopoulos GS, Goudevenos J, Baikoussis, Nikolaos G, Apostolakis, Efstratios E, Siminelakis, Stavros N, Papadopoulos, Georgios S, and Goudevenos, John
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CARDIOLOGY , *AORTIC diseases , *HEMATOMA , *THORACIC surgery , *PENETRATING atherosclerotic ulcer , *THORACIC aorta , *COMPUTED tomography , *ALGORITHMS - Abstract
This review article is written so as to present the pathophysiology, the symptomatology and the ways of diagnosis and treatment of a rather rare aortic disease called Intra-Mural Haematoma (IMH). Intramural haematoma is a quite uncommon but potentially lethal aortic disease that can strike as a primary occurrence in hypertensive and atherosclerotic patients to whom there is spontaneous bleeding from vasa vasorum into the aortic wall (media) or less frequently, as the evolution of a penetrating atherosclerotic ulcer (PAU). IMH displays a typical of dissection progress, and could be considered as a precursor of classic aortic dissection. IMH enfeebles the aortic wall and may progress to either outward rupture of the aorta or inward disruption of the intima layer, which ultimately results in aortic dissection. Chest and back acute penetrating pain is the most commonly noticed symptom at patients with IMH. Apart from a transesophageal echocardiography (TEE), a tomographic imaging such as a chest computed tomography (CT), a magnetic resonance (MRI) and most lately a multy detector computed tomography (MDCT) can ensure a quick and accurate diagnosis of IMH. Similar to type A and B aortic dissection, surgery is indicated at patients with type-A IMH, as well as at patients with a persistent and/or recurrent pain. For any other patient (with type-B IMH without an incessant pain and/or without complications), medical treatment is suggested, as applied in the case of aortic dissection. The outcome of IMH in ascending aorta (type A) appears favourable after immediate (emergent or urgent) surgical intervention, but according to international bibliography patients with IMH of the descending aorta (type B) show similar mortality rates to those being subjected to conservative medical or surgical treatment. Endovascular surgery and stent-graft placement is currently indicated in type B IMH. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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5. Dyspnea After Spinal Surgery and a Troubling X-Ray: A Case of Cement Embolism.
- Author
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Milaras N, Baikoussis NG, Dourvas P, Kosmopoulou S, and Sideris S
- Abstract
An older woman developed dyspnea after instrumented lumbar spinal fusion surgery. During clinical work-up, a chest radiography revealed a U-shaped object within the cardiac silhouette. Further imaging confirmed that the object was entrapped in the tricuspid subvalvular apparatus. Surgery was performed for removal of the object, which was later identified as cement (polymethyl methacrylate). Cement extravasation and embolism are well-known but rarely clinically significant complications after spinal surgery., Competing Interests: The authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2024 The Authors.)
- Published
- 2024
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6. The Effect of Surgical Aortic Valve Replacement on Arterial Stiffness: Does the Valve Type Matter?
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Sigala E, Terentes-Printzios D, Gardikioti V, Baikoussis NG, Koumallos N, Katsaros A, Lozos V, Kouerinis I, Triantafillou K, Filis K, Tsioufis K, and Vlachopoulos C
- Abstract
Background: Despite the increasing use of transcatheter aortic valve procedures, many patients still require surgical aortic valve replacement (SAVR). Assessing arterial properties in patients undergoing SAVR for aortic valve stenosis can be challenging, and the existing evidence is inconclusive. Our study aimed to investigate the impact of SAVR on vascular stiffness and the quality of life, as well as the different effects of valve type on arterial properties. Methods: We included 60 patients (mean age 70.25 ± 8.76 years, 65% men) with severe symptomatic aortic stenosis who underwent SAVR. Arterial stiffness (cfPWV, baPWV) and vascular parameters (AIx@75, central pressures, SEVR) were measured at baseline, pre-discharge, and 1-year post-operation. The QOL was assessed using the generic questionnaire-short-form health survey 36 (SF-36) pre-operatively and at 1 year. Results: Post-SAVR, cfPWV increased immediately (7.67 ± 1.70 m/s vs. 8.27 ± 1.92 m/s, p = 0.009) and persisted at 1 year (8.27 ± 1.92 m/s vs. 9.29 ± 2.59 m/s, p ≤ 0.001). Similarly, baPWV (n = 55) increased acutely (1633 ± 429 cm/s vs. 2014 ± 606 cm/s, p < 0.001) and remained elevated at 1 year (1633 ± 429 cm/s vs. 1867 ± 408 cm/s, p < 0.001). Acute decrease in Alx@75 (31.16 ± 10% vs. 22.48 ± 13%, p < 0.001) reversed at 1 year (31.16 ± 10% vs. 30.98 ± 9%, p = 0.71). SEVR improved (136.1 ± 30.4% vs. 149.2 ± 32.7%, p = 0.01) and persisted at 1 year (136.1 ± 30.4% vs. 147.5 ± 30.4%, p = 0.01). SV had a greater cfPWV increase at 1 year ( p = 0.049). The QOL improved irrespective of arterial stiffness changes. Conclusions: After SAVR, arterial stiffness demonstrates a persistent increase at 1-year, with valve type having a slight influence on the outcomes. These findings remain consistent despite the perceived QOL.
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- 2024
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7. Angiotensin Regulation of Vascular Homeostasis: Exploring the Role of ROS and RAS Blockers.
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Koumallos N, Sigala E, Milas T, Baikoussis NG, Aragiannis D, Sideris S, and Tsioufis K
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- Humans, Reactive Oxygen Species pharmacology, Angiotensin II metabolism, Homeostasis, NADPH Oxidases metabolism, Renin-Angiotensin System, Hypertension drug therapy
- Abstract
Extensive research has been conducted to elucidate and substantiate the crucial role of the Renin-Angiotensin System (RAS) in the pathogenesis of hypertension, cardiovascular disorders, and renal diseases. Furthermore, the role of oxidative stress in maintaining vascular balance has been well established. It has been observed that many of the cellular effects induced by Angiotensin II (Ang II) are facilitated by reactive oxygen species (ROS) produced by nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. In this paper, we present a comprehensive overview of the role of ROS in the physiology of human blood vessels, specifically focusing on its interaction with RAS. Moreover, we delve into the mechanisms by which clinical interventions targeting RAS influence redox signaling in the vascular wall.
- Published
- 2023
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8. Mitral valve repair with the use of the "Memo 3D ReChord" ring.
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Baikoussis NG, Koumallos N, and Aggeli Κ
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- Humans, Mitral Valve surgery, Treatment Outcome, Mitral Valve Insufficiency surgery, Mitral Valve Insufficiency etiology, Mitral Valve Prolapse surgery, Mitral Valve Annuloplasty adverse effects
- Abstract
Background: From a variety of ring types, semirigid ring is more preferred for mitral annuloplasty during mitral valve repair particularly in patients whose native mitral saddle shape annulus is well maintained. During mitral annuloplasty artificial chord implantation with the appropriate neochord length is surgically challenging. We present our experience of using the Memo 3D ReChord, a semirigid ring with additional chordal guiding system for mitral valve repair., Patients and Methods: From September 2018 to February 2020, we successfully treated ten patients with severe (4+/4+) degenerative mitral valve regurgitation due to posterior leaflet prolapse with chordal rupture with the implantation Memo 3D ReChord and neo-chords., Results: We implanted from one to three neo-chords and always a ring in our patients. None of the patients had any residual mitral valve regurgitation at the end of the repair and on their discharge evaluated through transesophageal and transthoracic echocardiography respectively. There was no mortality at 30-days or on midterm follow-up. During the 3-month follow-up no regurgitation was noticed either. We included in our study only the patients successfully treated. We also used it in two patients, who underwent valve replacement during the same operation due to mild to moderate mitral valve regurgitation., Conclusions: This, in our knowledge, is the first Greek series of the implantation of the Memo 3D Rechord. The initial excellent results give us the enthusiasm to continue while long-term results and the durability of this technique are necessary to establish this semirigid annuloplastic ring in our every-day practice., (© 2023. The Author(s).)
- Published
- 2023
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9. Severe aortic valve stenosis in low-risk elderly patients, which is the role of surgery.
- Author
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Baikoussis NG, Alexopoulou-Prounia L, and Limperiadis D
- Published
- 2023
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10. Aortic pathology; the role of endovascular surgery in the minimal invasive era.
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Baikoussis NG
- Subjects
- Humans, Retrospective Studies, Treatment Outcome, Aortic Dissection surgery, Aortic Aneurysm, Thoracic surgery, Blood Vessel Prosthesis Implantation, Endovascular Procedures
- Published
- 2022
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11. Perceval S valve empire: healing the Achilles' heel of sutureless aortic valves.
- Author
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Papakonstantinou NA, Baikoussis NG, and Dedeilias P
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- Aortic Valve diagnostic imaging, Aortic Valve physiopathology, Aortic Valve Stenosis diagnostic imaging, Aortic Valve Stenosis physiopathology, Arrhythmias, Cardiac diagnosis, Arrhythmias, Cardiac physiopathology, Arrhythmias, Cardiac therapy, Cardiac Pacing, Artificial, Hemodynamics, Humans, Pacemaker, Artificial, Prosthesis Design, Recovery of Function, Risk Assessment, Risk Factors, Transcatheter Aortic Valve Replacement adverse effects, Treatment Outcome, Aortic Valve surgery, Aortic Valve Stenosis surgery, Arrhythmias, Cardiac prevention & control, Bioprosthesis, Heart Valve Prosthesis, Sutureless Surgical Procedures adverse effects, Transcatheter Aortic Valve Replacement instrumentation
- Abstract
Aortic valve replacement is the treatment of choice concerning aortic valve disease. Excellent short- and long-term clinical results are reported. Patients referred for aortic valve replacement are getting older and older, so bioprosthetic valves play a more central role worldwide. However, patient comorbidities are also increased more often rendering patients unsuitable for open conventional aortic valve replacement. As a result, transcatheter aortic valve implantation has become the treatment of choice in patients at very high surgical risk. However, the percutaneous technique is related to major disadvantages provided that the diseased native valve is left in place. Its durability is also uncertain. More recently, sutureless Perceval S valve bioprosthesis has gained ground in the field of aortic stenosis therapy filling the gap between conventional aortic valve replacement and transcatheter approach. Excellent hemodynamic and clinical results are reported. Its deployment is performed under direct view and ischemic and overall operative times are significantly decreased. Five-year follow-up results are also optimal. However, the "Achilles' heel" of sutureless technology is increased rates of postoperative permanent pacemaker implantation requirement compared to conventional approach. The incidence of this complication varies in literature. Patient-related factors such as preoperative conduction disorders, older age and short membranous septum are predictors of postoperative pacemaker requirement. However, several technical modifications regarding manufacturer recommendations can be adopted to mitigate this complication. Appropriate annular decalcification, higher guiding sutures placement, reduced balloon pressure and duration and avoiding of oversizing can contribute to prevent from this complication.
- Published
- 2021
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12. Treatment of aortic arch rupture grade III with hybrid arch replacement: the key role of perfusion preservation.
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Schizas NC, Dedeilia AP, Samiotis I, Kratimenos T, Baikoussis NG, and Dedeilias PG
- Abstract
Hybrid arch replacement is a well-accepted method for the treatment of lesions involving the aortic arch, though its benefits compared to classic surgical techniques remain controversial. Multiple surgical approaches have been analyzed in the literature for the treatment of such a challenging pathology. In this case report, we describe the surgical management of a 72-year-old man presenting with a complicated aortic arch rupture. The patient was treated urgently with a type I hybrid arch replacement in two stages, with total preservation of cerebral and systemic perfusion. Our case shows that hybrid arch methods are applicable even in emergency cases., Competing Interests: Conflict of interestThe authors have no competing interests., (© Indian Association of Cardiovascular-Thoracic Surgeons 2021.)
- Published
- 2021
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13. Aortic root surgery; …sparing the valve.
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Baikoussis NG, Iakovakis I, Sigala E, and Triantafillou K
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- Aorta surgery, Aortic Valve surgery, Humans, Bicuspid Aortic Valve Disease, Heart Valve Diseases, Heart Valve Prosthesis
- Published
- 2020
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14. Mitral Valve Repair in the Elderly: Is It the Ideal Choice?
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Baikoussis NG, Iakovakis I, and Triantafillou K
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- Aged, Humans, Mitral Valve diagnostic imaging, Mitral Valve surgery, Mitral Valve Annuloplasty, Mitral Valve Insufficiency surgery
- Published
- 2020
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15. Minimizing the Electrocardiographic Complications in Aortic Valve Surgery.
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Baikoussis NG, Karantzas A, and Triantafillou K
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- Aortic Valve, Electrocardiography, Humans, Aortic Valve Stenosis, Pacemaker, Artificial
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- 2020
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16. The Perceval S valve. Making the good better… or optimal?
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Papakonstantinou NA and Baikoussis NG
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- Aortic Valve surgery, Humans, Registries, Aortic Valve Stenosis surgery, Bioprosthesis, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation
- Published
- 2020
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17. Does minimal invasive cardiac surgery reduce the incidence of post-operative atrial fibrillation?
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Maimari M, Baikoussis NG, Gaitanakis S, Dalipi-Triantafillou A, Katsaros A, Kantsos C, Lozos V, and Triantafillou K
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- Humans, Incidence, Atrial Fibrillation epidemiology, Atrial Fibrillation prevention & control, Cardiac Surgical Procedures methods, Minimally Invasive Surgical Procedures methods, Postoperative Complications epidemiology, Postoperative Complications prevention & control
- Abstract
Atrial fibrillation (AF) is the most common post-operative complication and tends to be the most common arrhythmia after cardiac surgery. The etiology and risk factors for post-operative AF are poorly understood, but older age, large left atrium, diffuse coronary artery disease, a history of AF paroxysms and in general, pre-existing cardiac conditions that cause restricting and susceptibility towards inflammation have been consistently linked with post-operative atrial fibrillation (POAF). It has been traditionally thought that post-operative AF is transient, well-tolerated, benign to the patient and self-limiting complication of cardiac surgery that was temporary and easily treated. However, recent evidence suggests that POAF may be more "malignant" than previously thought, associated with follow-up mortality and morbidity. Several minimally invasive approaches, including the right parasternal approach, upper and lower mini-sternotomy (MS), V-shaped, Z-shaped, inverse-T, J-, reverse-C and reverse-L partial MS, transverse sternotomy and right mini-thoracotomy, have been developed for cardiac surgery operations since 1993 and have been associated with better outcomes and lower perioperative morbidity compared to full sternotomy (FS). The common goal of several minimally invasive approaches is to reduce invasiveness and surgical trauma. According to a statement from the American Heart Association (AHA), the term "minimally invasive" refers to a small chest wall incision that does not include a FS. This review is aimed to evaluate the use of minimally invasive techniques like mini-sternotomy, mini-thoracotomy and hybrid techniques versus conventional techniques which are used in cardiac surgery and to compare the frequency of post-operative AF and its effect on post-operative complications, morbidity and mortality, after cardiac surgery operations with FS versus cardiac surgery operations with the use of minimally invasive techniques.
- Published
- 2020
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18. Innominate Artery Cannulation as Standard Technique for Ascending Aorta and Aortic Arch Surgery.
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Gaitanakis S, Baikoussis NG, and Triantafyllou K
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- Aorta, Catheterization, Cerebrovascular Circulation, Aorta, Thoracic, Brachiocephalic Trunk
- Published
- 2019
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19. Aortic rupture during endovascular repair of a postoperative coarctation pseudoaneurysm in an adult: Emergency lifesaving stent graft implantation.
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Kratimenos T, Patris V, Baikoussis NG, Tomais D, Samiotis I, and Argiriou M
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- Aneurysm, False diagnostic imaging, Aortic Coarctation diagnostic imaging, Aortic Rupture diagnostic imaging, Humans, Male, Middle Aged, Postoperative Complications diagnostic imaging, Tomography, X-Ray Computed, Treatment Outcome, Aneurysm, False surgery, Aortic Coarctation surgery, Aortic Rupture surgery, Emergency Treatment methods, Endovascular Procedures methods, Postoperative Complications surgery, Stents
- Abstract
We present a case with aortic rupture during an operation of thoracic endovascular aortic repair of an anastomotic pseudoaneurysm. This happened after the use of a low-pressure remodeling balloon inside the covered part of the deployed endografts. It was successfully treated with a second more centrally in the aortic arch-implanted endograft with full coverage of the left subclavian artery orifice. This patient had a history of surgically operated aortic coarctation.
- Published
- 2019
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20. Frozen Elephant Trunk: An Alternative Surgical Weapon Against Extensive Thoracic Aorta Disease. A Three-Year Meta-Analysis.
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Papakonstantinou NA, Antonopoulos CN, Baikoussis NG, Kakisis I, and Geroulakos G
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- Follow-Up Studies, Humans, Prosthesis Design, Time Factors, Treatment Outcome, Aortic Aneurysm, Thoracic surgery, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation methods
- Abstract
Background: Conventional open total arch replacement is the treatment of choice for surgical aortic arch pathologies. However, it is a two-stage procedure related to high cumulative and interval mortality rates. Hybrid type III aortic arch reconstruction, the so-called "frozen elephant trunk" is a one-stage alternative approach., Methods: A meta-analysis and detailed review of the literature published from January 2013 until December 2016, concerning frozen elephant trunk hybrid approach was conducted and data for morbidity and mortality rates were extracted., Results: Among 989 patients included, the pooled 30-day or in-hospital mortality rate was 5.04% (95%CI=1.13-10.74), stroke rate was 2.38% (95%CI=0.13-6.30), and the irreversible paraplegia due to spinal cord injury rate was 0.63% (95%CI=0.00-2.73). Finally, the pooled cumulative survival at 1year was remarkably high (86.7%, 95%CI=81.08-92.90)., Conclusions: Frozen elephant trunk is a safe alternative to conventional elephant trunk repair for extensive aortic arch pathologies with acceptable short- and mid-term results, avoiding the interval mortality hazard., (Copyright © 2018 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.)
- Published
- 2019
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21. Patient-Prosthesis Mismatch: Is This Phenomenon Justified in Current Cardiac Surgery Era?
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Gaitanakis S, Baikoussis NG, and Triantafillou K
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- Aortic Valve, Humans, Incidence, Aortic Valve Stenosis, Heart Valve Prosthesis
- Published
- 2019
- Full Text
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22. Aortic Arch Reconstruction: Are Hybrid Debranching Procedures a Good Choice?
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Papakonstantinou NA, Antonopoulos CN, Baikoussis NG, Kakisis I, and Geroulakos G
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- Humans, Aortic Dissection surgery, Aorta, Thoracic surgery, Aortic Aneurysm, Thoracic surgery, Blood Vessel Prosthesis, Endovascular Procedures methods, Plastic Surgery Procedures methods
- Abstract
Introduction: Conventional open total arch replacement is the treatment of choice for surgical aortic arch pathologies. However, it is an invasive procedure, requiring cardiopulmonary bypass and deep hypothermic circulatory arrest leading to significant morbidity and mortality rates. Hybrid aortic arch debranching procedures without (type I) or with (type II) ascending aorta replacement seek to limit operative, bypass, and circulatory arrest times by making the arch repair procedure simpler and shorter., Material and Methods: A meta-analysis and detailed review of the literature published from January 2013 until December 2016, concerning hybrid aortic arch debranching procedures was conducted and data for morbidity and mortality rates were extracted., Results: As far as type I hybrid aortic arch reconstruction is concerned, among the 122 patients included, the pooled endoleak rate was 10.78% (95%CI=1.94-23.40), 30-day or in-hospital mortality was 3.89% (95%CI=0.324-9.78), stroke rate was 3.79% (95%CI=0.25-9.77) and weighted permanent paraplegia rate was 2.4%. In terms of type II hybrid approach, among 40 patients, endoleak rate was 12.5%, 30-day or in-hospital mortality rate was 5.3%, stroke rate was 2.5%, no permanent paraplegia was noticed and late mortality rate was 12.5%., Conclusions: Hybrid aortic arch debranching procedures are a safe alternative to open repair with acceptable short- and mid-term results. They extend the envelope of intervention in aortic arch pathologies, particularly in high-risk patients who are suboptimal candidates for open surgery., (Copyright © 2018 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.)
- Published
- 2018
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23. Alexander the Great's Life-Threatening Thoracic Trauma.
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Apostolakis E, Papakonstantinou NA, Baikoussis NG, and Apostolaki G
- Abstract
Alexander the Great was a world-class leader with tremendous courage. He paid no heed to the dangers of the battlefield, so he was always in the front lines. However, his excessive courage put his life in danger. Herein, we present an analysis of the information contained in the chronicles about a very severe, life-threatening thoracic trauma that nearly killed the great stratelates . The detailed descriptions made by Arrianus allow us to conclude that Alexander the Great experienced a nearly fatal case of tension pneumothorax. Information on how he was managed is also presented., Competing Interests: Conflict of interest No potential conflict of interest relevant to this article was reported.
- Published
- 2018
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24. Ascending Aorta Endovascular Repair of a Symptomatic Penetrating Atherosclerotic Ulcer with a Custom-Made Endograft.
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Kratimenos T, Baikoussis NG, Tomais D, and Argiriou M
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- Aged, Aorta diagnostic imaging, Aorta pathology, Aortic Diseases diagnostic imaging, Aortic Diseases pathology, Aortography methods, Atherosclerosis diagnostic imaging, Atherosclerosis pathology, Computed Tomography Angiography, Humans, Male, Plaque, Atherosclerotic, Prosthesis Design, Treatment Outcome, Ulcer diagnostic imaging, Ulcer pathology, Aorta surgery, Aortic Diseases surgery, Atherosclerosis surgery, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation instrumentation, Endovascular Procedures instrumentation, Ulcer surgery
- Abstract
Background: Thoracic endovascular aortic repair (TEVAR) has become lately the procedure of choice in the treatment of most pathologies of descending thoracic aorta. Aortic arch aneurysms also came to be treated by TEVAR with various hybrid techniques or custom-made scalloped/fenestrated stent grafts. Zone 0; ascending TEVAR is more challenging than TEVAR of the descending thoracic aorta or aortic arch because of the more complex pathology, hemodynamics, and anatomy. Ascending TEVAR can be a lifesaving treatment in selected high surgical risk patients., Case Report: A 71-year-old male with known history of respiratory insufficiency, coronary artery disease, and low left ventricle ejection fraction, presented to emergency department with acute thoracic pain. As the initial laboratory tests and the electrocardiogram were negative for acute coronary syndrome, a computed tomography (CT) scan was performed that showed a 20 mm large and 17 mm depth penetrating atherosclerotic ulcer (PAU) in the middle portion of ascending thoracic aorta. After medical therapy administration, the thoracic pain was controlled, and due to the high surgical risk of the patient, high incidence of aortic rupture due to PAU, and favorable anatomic conditions was scheduled the implantation of a custom-made (due to short ascending aorta) stent graft (Bolton, Relay Plus). A pacemaker was implanted 1 week before the operation to induce rapid ventricular pacing during the stent-graft deployment. During the operation, the patient was under general anesthesia as it was our first case treated in this way. The delivery of the graft was achieved through a right femoral artery cut open by an extra-stiff guide wire (Lunderquist Cook) that was placed through an angio-catheter into the left ventricle of the heart. The final positioning and deployment of the graft was achieved under rapid ventricular pacing, and the final angiogram after the withdraw of the graft delivery system showed exclusion from circulation of PAU, patency of coronary arteries, and brachiocephalic trunk with competent aortic valve., Conclusions: TEVAR of the ascending aorta is a safe and feasible technique indicated mainly unfit for open surgery patients., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2018
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25. Coronary artery bypass grafting and paraparesis; is there a correlation?
- Author
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Samiotis I, Baikoussis NG, Patris V, Argiriou M, Dedeilias P, and Charitos C
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- Aged, Brain Edema etiology, Cardiopulmonary Bypass adverse effects, Coronary Artery Disease diagnostic imaging, Fatal Outcome, Guillain-Barre Syndrome diagnostic imaging, Humans, Magnetic Resonance Imaging, Male, Paraparesis diagnostic imaging, Patient Positioning adverse effects, Shock, Septic etiology, Spinal Cord Compression diagnostic imaging, Spinal Cord Ischemia diagnostic imaging, Time Factors, Treatment Outcome, Coronary Artery Bypass adverse effects, Coronary Artery Disease surgery, Guillain-Barre Syndrome etiology, Paraparesis etiology, Spinal Cord Compression etiology, Spinal Cord Ischemia etiology
- Abstract
Adult cardiac surgery is associated with significant perioperative morbidity and mortality rates, mainly in elderly patients with co-morbidities. A series of postoperative complications may arise and delay the recovery of patients undergoing cardiac surgery. Such complications also increase the burden of resource use and may affect late survival rates. Neurological complications appear mainly as stroke of varying degrees, with impairment of mobility and ability of the patient. We describe a rare case of progressive paraparesis after on-pump coronary artery bypass grafting, and review its aetiology, diagnosis and management.
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- 2018
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26. Endovascular stent grafting for ascending aorta diseases.
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Baikoussis NG, Antonopoulos CN, Papakonstantinou NA, Argiriou M, and Geroulakos G
- Subjects
- Adult, Aged, Aged, 80 and over, Aorta diagnostic imaging, Aortic Diseases diagnostic imaging, Blood Vessel Prosthesis Implantation adverse effects, Endovascular Procedures adverse effects, Female, Humans, Male, Middle Aged, Postoperative Complications etiology, Postoperative Complications surgery, Prosthesis Design, Reoperation, Risk Factors, Time Factors, Treatment Outcome, Aorta surgery, Aortic Diseases surgery, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation instrumentation, Endovascular Procedures instrumentation, Stents
- Abstract
Objective: Conventional open surgery encompassing cardiopulmonary bypass has been traditionally used for the treatment of ascending aorta diseases. However, more than one in five of these patients will be finally considered unfit for open repair. We conducted a systematic review and meta-analysis to investigate the role of thoracic endovascular aortic repair (TEVAR) for aortic diseases limited to the ascending aorta., Methods: The current meta-analysis was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We investigated patients' baseline characteristics along with early (30 days/in-hospital stay) and late (beyond 30 days/in-hospital stay) outcomes after TEVAR limited to the ascending aorta and not involving the arch vessels. Separate analyses for case reports and case series were conducted, and pooled proportions with 95% confidence intervals (CIs) of outcome rates were calculated., Results: Approximately 67% of the patients had a prior cardiac operation. TEVAR was performed mainly for acute or chronic Stanford type A dissection (49%) or pseudoaneurysm (28%). The device was usually delivered through the femoral artery (67%), and rapid ventricular pacing was used in nearly half of the patients. Technical success of the method was 95.5% (95% CI, 87.8-99.8). Among the early outcomes, conversion to open repair was 0.7% (95% CI, 0.1-4.8), whereas mortality was 2.9% (95% CI, 0.02-8.6). We estimated a pooled rate of 1.8% (95% CI, 0.1-7.0) for neurologic events (stroke or transient ischemic attack) and 0.8% (95% CI, 0.1-5.6) for myocardial infarction. Late endoleak was recorded in 16.4% (95% CI, 8.2-26.0), and 4.4% (95% CI, 0.1-12.4) of the population died in the postoperative period. Finally, reoperation was recorded in 8.9% (95% CI, 3.1-16.4) of the study sample., Conclusions: TEVAR in the ascending aorta seems to be safe and feasible for selected patients with various aortic diseases, although larger studies are required., (Copyright © 2017 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)
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- 2017
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27. Sutureless aortic valve implantation in patient with porcelain aorta via unclamped aorta and deep hypothermic circulatory arrest.
- Author
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Boultadakis V, Baikoussis NG, Panagiotakopoulos V, Papakonstantinou NA, Xelidoni P, Anagnostou S, and Charitos C
- Subjects
- Aged, 80 and over, Aorta diagnostic imaging, Aortic Valve diagnostic imaging, Atherosclerosis etiology, Calcinosis complications, Calcinosis diagnostic imaging, Constriction, Female, Humans, Sternotomy, Sutures, Tomography, X-Ray Computed, Aortic Valve surgery, Calcinosis surgery, Circulatory Arrest, Deep Hypothermia Induced methods, Heart Valve Prosthesis Implantation methods
- Abstract
Severe atherosclerotic calcification of the ascending aorta, the so-called porcelain aorta, precludes cardiac surgeons from placing an aortic cross-clamp and direct aortic cannulation due to the increased risk of systemic embolism and stroke. In the present report, we support the option of sutureless valve implantation in a case of a porcelain ascending aorta, with deep hypothermic circulatory arrest and also without aortic cross-clamp.
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- 2017
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28. Transaortic video-assisted excision of a left ventricular hemangioma.
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Papakonstantinou NA, Baikoussis NG, Argiriou M, and Dedeilias P
- Subjects
- Adult, Coronary Angiography, Female, Heart Neoplasms pathology, Heart Ventricles pathology, Hemangioma pathology, Humans, Magnetic Resonance Imaging, Papillary Muscles pathology, Papillary Muscles surgery, Cardiac Surgical Procedures methods, Heart Neoplasms diagnostic imaging, Heart Neoplasms surgery, Heart Ventricles surgery, Hemangioma diagnostic imaging, Hemangioma surgery, Surgery, Computer-Assisted methods, Thoracic Surgery, Video-Assisted methods
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- 2017
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29. The perceval S aortic valve implantation in patients with porcelain aorta; is this ideal option?
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Baikoussis NG, Dedeilias P, Prappa E, and Argiriou M
- Subjects
- Aged, Aorta diagnostic imaging, Aortic Valve diagnostic imaging, Aortic Valve Stenosis diagnostic imaging, Aortic Valve Stenosis surgery, Bioprosthesis, Calcinosis diagnostic imaging, Echocardiography, Humans, Male, Radiography, Thoracic, Aorta surgery, Aortic Valve surgery, Calcinosis surgery, Transcatheter Aortic Valve Replacement methods
- Abstract
We would like to present in this paper a patient with severe aortic valve stenosis referred to our department for surgical aortic valve replacement. In this patient, it was intraoperatively detected an unexpected heavily calcified porcelain ascending aorta. We present the treatment options in this situation, the difficulties affronted intraoperatively, the significance of the preoperative chest computed tomography scan and the use of the Perceval S aortic valve as ideal bioprosthesis implantation. This is a self-expanding, self-anchoring, and sutureless valve with a wide indication in all patients requiring aortic bioprosthesis.
- Published
- 2017
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30. Cardiac surgery or interventional cardiology? Why not both? Let's go hybrid.
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Papakonstantinou NA, Baikoussis NG, Dedeilias P, Argiriou M, and Charitos C
- Subjects
- Humans, Minimally Invasive Surgical Procedures methods, Stents, Cardiac Surgical Procedures methods, Cardiovascular Diseases surgery, Combined Modality Therapy methods
- Abstract
A hybrid strategy, firstly performed in the 1990s, is a combination of tools available only in the catheterization laboratory with those available only in the operating room in order to minimize surgical morbidity and face with any cardiovascular lesion. The continuous evolution of stent technology along with the adoption of minimally invasive surgical approaches, make hybrid approaches an attractive alternative to standard surgical or transcatheter techniques for any given set of cardiovascular lesions. Examples include hybrid coronary revascularization, when an open surgical anastomosis of the left internal mammary artery to the left anterior descending coronary artery is performed along with stent implantation in non-left anterior descending coronary vessels, open heart valve surgery combined with percutaneous coronary interventions to coronary lesions, hybrid aortic arch debranching combined with endovascular grafting for thoracic aortic aneurysms, hybrid endocardial and epicardial atrial fibrillation procedures, and carotid artery stenting along with coronary artery bypass grafting. The cornerstone of success for all of these methods is the productive collaboration between cardiac surgeons and interventional cardiologists. The indications and patient selection of these procedures are still to be defined. However, high-risk patients have already been shown to benefit from hybrid approaches., (Copyright © 2016 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.)
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- 2017
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31. Aortic Root Enlargement or Sutureless Valve Implantation?
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Baikoussis NG, Dedeilias P, and Argiriou M
- Abstract
Aortic valve replacement (AVR) in patients with a small aortic annulus is a challenging issue. The importance of prosthesis-patient mismatch (PPM) post aortic valve replacement (AVR) is controversial but has to be avoided. Many studies support the fact that PPM has a negative impact on short and long term survival. In order to avoid PPM, aortic root enlargement may be performed. Alternatively and keeping in mind that often some comorbidities are present in old patients with small aortic root, the Perceval S suturelles valve implantation could be a perfect solution. The Perceval sutureless bioprosthesis provides reasonable hemodynamic performance avoiding the PPM and providing the maximum of aortic orifice area. We would like to see in the near future the role of the aortic root enlargement techniques in the era of surgical implantation of the sutureless valve (SAVR) and the transcatheter valve implantation (TAVI).
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- 2016
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32. The formation of bronchocutaneous fistulae due to retained epicardial pacing wires: A literature review.
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Patris V, Argiriou M, Salem AL, Giakoumidakis K, Baikoussis NG, and Charitos C
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- Humans, Bronchial Fistula etiology, Cardiac Pacing, Artificial, Cutaneous Fistula etiology, Pacemaker, Artificial adverse effects
- Abstract
Temporary epicardial pacing wires during open-heart surgery are routinely used both for diagnostic and treatment purposes. In complicated cases where patients are unstable or the wires are difficult to remove, the pacing wires are cut at the skin level and allowed to retract by themselves. This procedure rarely causes complications. However, there have been cases reporting that retained pacing wires are linked to the formation of sterno-bronchial fistulae, which may present a while after the date of operation and are usually infected. This review aims to study the cases presenting sterno-bronchial fistulae due to retained epicardial pacing wires and to highlight the important factors associated with these. It is important to note these complications, as fistulae may cause a variety of problems to the patient if undiagnosed and left untreated. With the aid of scans such as fistulography, fistulae can be identified and treated and will improve the patients' health dramatically.
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- 2016
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33. Novel no touch technique of saphenous vein harvesting: Is great graft patency rate provided?
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Papakonstantinou NA, Baikoussis NG, Goudevenos J, Papadopoulos G, and Apostolakis E
- Subjects
- Humans, Treatment Outcome, Coronary Artery Bypass methods, Saphenous Vein surgery, Tissue and Organ Harvesting methods, Vascular Patency, Vascular Surgical Procedures methods
- Abstract
Coronary artery bypass grafting surgery effectively relieves signs and symptoms of myocardial ischemia. The left internal thoracic artery (LITA) graft is the gold standard having 90-95% patency rate at 10 years, whereas only 50% of saphenous vein (SV) grafts are patent at 10 years. However, there is a novel "no touch" technique in order to harvest an SV complete with its cushion of surrounding tissue, thus maintaining its endothelium-intact. Significantly superior short- and long-term graft patency rates comparable to LITA grafts can be achieved. Consequently, the SV may be revived as an important conduit in coronary artery bypass surgery.
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- 2016
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34. Iatrogenic dissection of the descending aorta: Conservative or endovascular treatment?
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Baikoussis NG, Argiriou M, Kratimenos T, Karameri V, and Dedeilias P
- Subjects
- Aged, 80 and over, Aortic Dissection diagnostic imaging, Aorta, Thoracic diagnostic imaging, Aorta, Thoracic surgery, Aortic Valve surgery, Female, Humans, Iatrogenic Disease, Postoperative Complications diagnostic imaging, Risk Factors, Tomography, X-Ray Computed, Treatment Outcome, Aortic Dissection surgery, Aortic Valve Stenosis surgery, Endovascular Procedures methods, Postoperative Complications surgery, Transcatheter Aortic Valve Replacement adverse effects
- Abstract
Transcatheter aortic valve implantation (TAVI) is without any doubt a standard technique and the treatment of choice of severe aortic valve stenosis (AVS) in very high-operative risk patients. However, a number of complications may occur and has been described. Improper valve position, valve migration, paravalvular regurgitation, conduction disturbances, stroke and aortic dissection have been succeeded despite the perfection of the technique. For anyone of the complications above described, a solution may be invented. We present an interesting case of an 81-year-old woman with severe AVS treated through TAVI due to very high operative risk. This female, 12 days later presented with thoracic pain and shortness of breath and through the computed tomography of the chest performed was diagnosed a dissection of the descending aorta. She successfully underwent on thoracic endovascular aortic repair. In this report, we refer the bibliographic data and we discuss the treatment options in these cases.
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- 2016
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35. Preventive Landmarks Placement in Aortic Annulus During Aortic Valve Replacement in the Era of Valve-In-Valve Transcatheter Aortic Implantation.
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Baikoussis NG, Argiriou M, and Dedeilias P
- Subjects
- Aortic Valve Stenosis surgery, Cardiac Catheterization, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation, Humans, Treatment Outcome, Aortic Valve surgery, Transcatheter Aortic Valve Replacement
- Published
- 2016
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36. Total arterial revascularization: A superior method of cardiac revascularization.
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Papakonstantinou NA and Baikoussis NG
- Subjects
- Humans, Survival Analysis, Treatment Outcome, Coronary Artery Disease surgery, Myocardial Revascularization methods
- Abstract
For over 40 years, the left internal thoracic artery has been used as the gold standard for myocardial revascularization and anastomosis over the left anterior descending artery due to its excellent patency rates. However, the right internal thoracic artery behaves in the same manner as the left, also having excellent long-term patency. Hence, no patient should be deprived of the benefits of total arterial revascularization allowed by the bilateral use of both internal thoracic arteries., (Copyright © 2016 Hellenic Cardiological Society. Published by Elsevier B.V. All rights reserved.)
- Published
- 2016
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37. Aortic valve replacement in elderly with small aortic root and low body surface area; the Perceval S valve and its impact in effective orifice area.
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Dedeilias P, Baikoussis NG, Prappa E, Asvestas D, Argiriou M, and Charitos C
- Subjects
- Aged, Aged, 80 and over, Aortic Valve surgery, Bioprosthesis, Body Surface Area, Female, Heart Valve Prosthesis Implantation methods, Hemodynamics, Humans, Male, Operative Time, Prospective Studies, Prosthesis Design, Stents, Sutureless Surgical Procedures instrumentation, Sutureless Surgical Procedures methods, Aortic Valve Stenosis surgery, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation
- Abstract
Background: The aim of this study is to see how the sutureless, stentless, Perceval S aortic valves behave when implanted in elderly patients with small aortic root and the comparison with a second group of patients with similar characteristics where a conventional stented bioprosthesis was implanted. This is a prospective randomized institutional study., Methods: Our material is composed from 25 patients who underwent aortic valve replacement with sutureless self-anchoring Perceval S valve implantation (LivaNova), compared with 25 patients with conventional stented biological prosthesis implanted (soprano LivaNova group). The two groups of patients have similar demographic and medical characteristics with severe aortic stenosis. The study was conducted from January 2012 to June 2014. Preoperative, intraoperative and postoperative parameters were studied in order to investigate the utility of the Perceval S valves in this group of patients., Results: The Perceval S valve implantation seems to be an interesting biological valve with good hemodynamic characteristics as compared with the typical biological prosthesis providing shorter ischemia time (40 ± 5.50 min vs 86 ± 15.86 min; p < 0.001), shorter extracorporeal circulation time (73.75 ± 8.12 min vs 120.36 ± 28.31 min p < 0.001), less operation time (149.38 ± 15.22 min vs 206.64 ± 42.85 min; p < 0.001) and better postoperative recovery. The postoperative gradients were 23.5 ± 19.20 mmHg vs 24.5 ± 19.90 mmHg respectively. The postoperative effective orifice area in these two groups were respectively 1.5 =/-0.19 cm(2) vs 1.1=/-0.5 cm(2) (p 0.002). Among the 25 patients of the Soprano stented valve, 3 (12 %) came back in 6 months with New York Heart Association (NYHA) 3. The PPM of these patients was the cause of readmission in the Hospital required diuresis and supplementary treatment., Conclusions: Aortic valve replacement with Perceval aortic valves in geriatric patients with comorbidities and small aortic annulus seems to be an alternative, safe and "fast" intervention with excellent short and mid-term results which provides a better effective orifice area.
- Published
- 2016
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38. Hybrid treatment of a true thyreocervical trunk aneurysm in a patient with Type B aortic dissection.
- Author
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Baikoussis NG, Argiriou O, Argiriou M, Psevdi A, Kratimenos T, and Dedeilias P
- Subjects
- Aged, Anastomosis, Surgical, Aneurysm pathology, Aneurysm surgery, Aortic Dissection diagnostic imaging, Aortic Aneurysm, Thoracic diagnostic imaging, Blood Vessel Prosthesis Implantation, Carotid Arteries surgery, Cerebrovascular Circulation, Humans, Male, Stents, Subclavian Artery diagnostic imaging, Subclavian Artery pathology, Subclavian Artery surgery, Tomography, X-Ray Computed, Vertebral Artery diagnostic imaging, Vertebral Artery pathology, Vertebral Artery surgery, Aortic Dissection surgery, Aortic Aneurysm, Thoracic surgery, Vascular Surgical Procedures methods
- Abstract
We would like to describe a case with a complex aortic disease treated in hybrid fashion. We present an interesting case of a 65-year-old man with a medical history of hypertension, hyperlipidemia, and coronary artery disease percutaneously treated. An acute Type B aortic dissection occurred and treated with the implantation of a stent-graft which occluded the left subclavian artery due to its extension to the aortic arch. This event required a carotid-subclavian artery bypass due to ischemia of the left arm. An aneurysm in the innominate artery also detected, was treated with another stent-graft implantation 3 months later. At 5-year follow-up, an aneurysm of the thyreocervical trunk was found while the stent-graft of the aorta was well-tolerated without endoleak and the carotid-subclavian graft was patent. The aneurysm was asymptomatic but considering the risk of spontaneous rupture of an aneurysm of this size, elective surgery was indicated. Because the aneurysm was very close to the brachiocephalic bifurcation, open surgical repair would require a sternotomy. The right common carotid artery and right subclavian artery were exposed. The thyrocervical trunk, right internal mammary artery and right vertebral artery were occluded by ligations to isolate the aneurysm. An 8-mm Dacron graft was anastomosed end-to-end to the distal part of subclavian artery. We would like through this case, discuss the role of the hybrid cardiovascular surgery to minimize the postoperative complications in complex cardiovascular pathology. We also discuss the international bibliography about the thyreocervical trunk aneurysm and the treatment options.
- Published
- 2016
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39. Cardiac papillary fibroelastoma; when, how, why?
- Author
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Baikoussis NG, Dedeilias P, Argiriou M, Argiriou O, Vourlakou C, Prapa E, and Charitos C
- Subjects
- Aged, Aortic Valve pathology, Aortic Valve Insufficiency etiology, Cardiac Surgical Procedures methods, Female, Heart Neoplasms complications, Heart Neoplasms surgery, Humans, Myocardial Infarction etiology, Heart Neoplasms pathology
- Abstract
We would like to present an interesting case operated on in our department and discuss the international bibliography about this issue. We also present some interesting images of this case. Our material is composed from a 68-year-old woman treated by the authors. She presented with a small murmur in the auscultation while she was asymptomatic and then she diagnosed with a tumor on of the left coronary cusp of the aortic valve with the characteristics of papillary fibroelastoma. On the basis of the potential embolic risk either of the mass itself or of associated thrombus and the possibility of further enlargement, the patient although asymptomatic at the time of diagnosis was referred for elective surgical excision of the mass. She underwent on median sternotomy and through extracorporeal circulation the mass has been excised with the preservation of the well-functioning valve. Through this case, we would like to discuss the bibliography for the decision making in these cases. Hence, the aim of our study is that we have to keep in mind that this kind of friable mass may be the cause of embolism, stroke or coronary artery occlusion and must be excided in a conservative setting, sparing the aortic valve.
- Published
- 2016
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40. Perceval S aortic valve implantation in an achondroplastic Dwarf.
- Author
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Baikoussis NG, Argiriou M, Argiriou O, and Dedeilias P
- Subjects
- Aortic Valve diagnostic imaging, Aortic Valve Stenosis surgery, Dyspnea etiology, Echocardiography, Female, Heart Valve Prosthesis, Humans, Middle Aged, Treatment Outcome, Aortic Valve surgery, Dwarfism complications, Heart Valve Prosthesis Implantation methods
- Abstract
Despite cardiovascular disease in patients with dwarfism is not rare; there is a lack of reports referring to cardiac interventions in such patients. Dwarfism may be due to achondroplasia or hormonal growth disorders. We present a 58-year-old woman with episodes of dyspnea for several months. She underwent on transthoracic echocardiography, and she diagnosed with severe aortic valve stenosis. She referred to our department for surgical treatment of this finding. In accordance of her anthropometric characteristics and her very small aortic annulus, we had the dilemma of prosthesis selection. We decided to implant a stentless valve to optimize her effective orifice area. Our aim is to present the successful Perceval S valve implantation and the descriptions of the problems coming across in operating on these special patients. To our knowledge, this is the first case patient in which a Perceval S valve is implanted according to the international bibliography.
- Published
- 2016
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41. Simultaneous "traumatic Gerbode" and aortic rupture due to blunt chest trauma.
- Author
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Anninos H, Baikoussis NG, Dedeilias P, Argiriou M, Politis P, Gounopoulos P, Koroneos A, and Charitos C
- Subjects
- Accidents, Traffic, Adult, Cardiac Surgical Procedures, Electrocardiography, Humans, Length of Stay, Male, Treatment Outcome, Aortic Rupture etiology, Aortic Rupture surgery, Heart Septal Defects, Ventricular etiology, Heart Septal Defects, Ventricular surgery, Thoracic Injuries complications, Wounds, Nonpenetrating complications
- Abstract
The Gerbode defect is characterized by a perimembranous ventricular septal defect between the left ventricle and the right atrium. This intracardiac shunt is a congenital defect but may be iatrogenic after valve surgery or atrioventricular node ablation, may be the result of endocarditis or may be traumatic. It is really rarely encountered as sequelae of non-penetrating heart trauma, and their clinical manifestations may often be unrecognized in the multi-injured patient. However, they are serious complications, and their diagnostic approach is not always feasible. We hereby present a case of a young man with the left ventricle to the right atrium communication after blunt thoracic trauma due to a car accident and concomitant rupture of the thoracic aorta. We present also the case and the ways of treatment according to the international bibliography.
- Published
- 2016
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42. External Stenting of the Vein Grafts in Coronary Artery Operations: Limitations, Benefits, and Patients' Safety.
- Author
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Baikoussis NG, Argiriou M, Dedeilias P, and Charitos C
- Subjects
- Female, Humans, Male, Coronary Artery Bypass methods, Coronary Artery Disease surgery, Graft Occlusion, Vascular surgery, Saphenous Vein transplantation, Stents
- Published
- 2015
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43. Mechanisms of oxidative stress and myocardial protection during open-heart surgery.
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Baikoussis NG, Papakonstantinou NA, Verra C, Kakouris G, Chounti M, Hountis P, Dedeilias P, and Argiriou M
- Subjects
- Free Radical Scavengers therapeutic use, Humans, Cardiopulmonary Bypass adverse effects, Heart Arrest, Induced methods, Hypothermia, Induced adverse effects, Nitric Oxide therapeutic use, Oxidative Stress physiology
- Abstract
Cold heart protection via cardioplegia administration, limits the amount of oxygen demand. Systemic normothermia with warm cardioplegia was introduced due to the abundance of detrimental effects of hypothermia. A temperature of 32-33°C in combination with tepid blood cardioplegia of the same temperature appears to be protective enough for both; heart and brain. Reduction of nitric oxide (NO) concentration is in part responsible for myocardial injury after the cardioplegic cardiac arrest. Restoration of NO balance with exogenous NO supplementation has been shown useful to prevent inflammation and apoptosis. In this article, we discuss the "deleterious" effects of the oxidative stress of the extracorporeal circulation and the up-to-date theories of "ideal'' myocardial protection.
- Published
- 2015
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44. Lipomatous hypertrophy of the interatrial septum and fibrosing mediastinal lymphadenopathy causing superior vena cava obstruction.
- Author
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Baikoussis NG, Argiriou O, Kratimenos T, Dedeilias P, and Argiriou M
- Subjects
- Aged, Atrial Septum diagnostic imaging, Atrial Septum pathology, Cardiomegaly diagnosis, Echocardiography, Transesophageal, Female, Heart Diseases complications, Heart Diseases diagnosis, Humans, Lipomatosis diagnosis, Lymphatic Diseases diagnosis, Magnetic Resonance Imaging, Mediastinal Diseases complications, Mediastinal Diseases diagnosis, Mediastinitis diagnosis, Mediastinum diagnostic imaging, Mediastinum pathology, Phlebography, Sclerosis diagnosis, Superior Vena Cava Syndrome diagnosis, Tomography, X-Ray Computed, Cardiomegaly complications, Lipomatosis complications, Lymphatic Diseases complications, Mediastinitis complications, Sclerosis complications, Superior Vena Cava Syndrome etiology
- Abstract
Lipomatous hypertrophy of the interatrial septum (LHIS) is an uncommon cause of superior vena cava syndrome (SVCS). Fibrosing mediastinal lymphadenopathy is another cause of SVCS. We present a 65-year-old female patient with a history of tuberculosis (TB) and the coexistence of LHIS and fibrosing mediastinitis due to TB of the lung. Fibrosing or sclerosing mediastinitis is a rare entity with few cases published in the western literature. She presented with mild symptomatology of SVCS and she underwent on transthoracic and transesophageal echocardiography, computed tomography scan, magnetic resonance imaging, and venography. Due to the development of an abundant collateral venous system seen on venography and her negation for any treatment, she did not undergo yet on any intervention. To our knowledge, this is the first case reported in the international bibliography in which LHIS and sclerosing lymphadenopathy are simultaneously diagnosed in the same patient.
- Published
- 2015
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45. Cardiac tumors: a retrospective multicenter institutional study.
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Baikoussis NG, Papakonstantinou NA, Dedeilias P, Argiriou M, Apostolakis E, Koletsis E, Dougenis D, and Charitos C
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Echocardiography, Transesophageal, Female, Heart Neoplasms diagnosis, Heart Neoplasms mortality, Humans, Male, Middle Aged, Retrospective Studies, Tomography, X-Ray Computed, Young Adult, Heart Neoplasms surgery
- Abstract
Purpose: Primary cardiac tumors are uncommon but not extremely rare. Cardiac tumors, mostly intracavitary, include benign and malignant tumors that arise from the endocardium, heart valves or myocardium. This retrospective study summarizes the experience of the Cardiac Surgery Departments of three tertiary Hospitals in this field, and particularly in cardiac myxomas, over the last 29 years. Herein, we present the results of cardiac tumors excision in relation to postoperative morbidity and mortality., Methods: Between 1985 and 2014, 117 patients, aged from 16 to 82 years, underwent resection of a cardiac tumor., Results: Ninety one of the tumors (77.78%) were myxomas, 15 of them (12.82%) were other primary cardiac tumors, 7 of them (5.98%) were infra-diaphragmatic tumors and the remaining 4 tumors (3.42%) were benign intracavitary masses (thrombi). Patients operated on for a cardiac tumor had a 30-day mortality rate of 3.29%. Atrial fibrillation appeared in 21 out of 91 patients (23.07%) operated on for cardiac myxoma, while neurological complications were observed in 3 patients (3.29%). Re-exploration for bleeding was performed in 5 out of 91 cases (5.49%) and recurrence occurred in 4.39% of myxomas., Conclusions: Despite being rare, primary cardiac tumors require open heart intervention soon after their diagnosis in order to prevent complications and achieve low mortality rates.
- Published
- 2015
46. Imaging of acute aortic syndrome: advantages, disadvantages and pitfalls.
- Author
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Apostolakis E, Papakonstantinou NA, Baikoussis NG, Petrou A, and Goudevenos J
- Subjects
- Aortic Rupture etiology, Atherosclerosis complications, Diagnosis, Differential, Electrocardiography, Hematoma complications, Humans, Magnetic Resonance Imaging methods, Radiographic Image Interpretation, Computer-Assisted methods, Aortic Rupture diagnosis, Aortography methods, Atherosclerosis diagnosis, Echocardiography, Transesophageal methods, Hematoma diagnosis, Tomography, X-Ray Computed methods
- Published
- 2015
47. Intensive care unit-related generalized neuromuscular weakness due to critical illness polyneuropathy/myopathy in critically ill patients.
- Author
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Apostolakis E, Papakonstantinou NA, Baikoussis NG, and Papadopoulos G
- Subjects
- Adult, Aged, Aged, 80 and over, Female, Humans, Incidence, Intensive Care Units, Male, Middle Aged, Muscle Weakness epidemiology, Muscle Weakness etiology, Muscular Diseases epidemiology, Muscular Diseases etiology, Polyneuropathies epidemiology, Polyneuropathies etiology, Prognosis, Risk Factors, Critical Illness therapy, Muscle Weakness therapy, Muscular Diseases therapy, Polyneuropathies therapy
- Abstract
Thirty to fifty percent of critically ill patients admitted to the intensive care unit suffer from generalized neuromuscular weakness due to critical illness polyneuropathy, critical illness myopathy, or a combination of them, thus prolonging mechanical ventilation and their intensive care unit stay. A distinction between these syndromes and other neuromuscular abnormalities beginning either before or after ICU admission is necessary. These intensive care unit-related diseases are associated with both elevated mortality rates and increased morbidity rates. Generally, over 50 % of patients will completely recover. Most of them recover after 4-12 weeks, but some patients have been reported to keep on suffering from muscle weakness for at least 4 months. Prevention has a key role in the management of critical illness neuromuscular disorders, as no specific therapy has been suggested. Either prevention or aggressive treatment of sepsis can prevent critical illness polyneuropathy and critical illness myopathy. The dose and duration of the administration of neuromuscular blocking drugs should be limited, and their concurrent administration with corticosteroids should be avoided. Intensive insulin therapy has also been proven to reduce their incidence. Finally, early mobilization via active exercise or electrical muscle stimulation plays a significant role in their prevention.
- Published
- 2015
- Full Text
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48. Coronary endarterectomy: new flavors from old recipes.
- Author
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Papakonstantinou NA, Baikoussis NG, and Apostolakis E
- Subjects
- Anticoagulants administration & dosage, Coronary Artery Bypass methods, Coronary Artery Bypass, Off-Pump, Coronary Artery Disease physiopathology, Coronary Vessels physiopathology, Heparin administration & dosage, Humans, Postoperative Care, Safety, Vascular Patency, Warfarin administration & dosage, Coronary Artery Disease surgery, Coronary Vessels surgery, Endarterectomy methods
- Abstract
Coronary endarterectomy is an old surgical procedure against coronary artery disease first described by Baily et al. in 1957. Despite its first adverse results, several current publications have shown that coronary endarterectomy with on-pump or off-pump coronary artery bypass grafting can be safely performed with acceptable mortality, morbidity, and angiographic patency rates. Coronary endarterectomy can assure complete revascularization supplying the myocardium with satisfactory blood flow in cases of a diffusely diseased left anterior descending artery or diffuse calcification, thus preventing residual ischemia. Hence, it is important to evaluate current results, rethink this old recipe, and redefine its indications., (Copyright © 2014 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
- Full Text
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49. The "benefits" of the mini-extracorporeal circulation in the minimal invasive cardiac surgery era.
- Author
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Baikoussis NG, Papakonstantinou NA, and Apostolakis E
- Subjects
- Anticoagulants administration & dosage, Aprotinin, Blood Loss, Surgical prevention & control, Blood Transfusion, Cardiopulmonary Bypass adverse effects, Extracorporeal Circulation adverse effects, Extracorporeal Membrane Oxygenation, Hematocrit, Hemodilution, Heparin administration & dosage, Humans, Myocardial Ischemia prevention & control, Myocardial Reperfusion Injury prevention & control, Postoperative Complications prevention & control, Cardiac Surgical Procedures, Extracorporeal Circulation methods, Minimally Invasive Surgical Procedures
- Abstract
Mini-extracorporeal circulation (MECC) constitutes a novel miniaturized cardiopulmonary bypass (CPB) circuit, heparin-coated and primed with aprotinin. Its membrane oxygenation is similar to conventional cardio-pulmonary bypass (CCPB), but it is a completely closed-volume system due to the lack of the venous reservoir which has been removed. In a mini circuit, the reservoir is the patient himself. Consequently, air entering the venous cannula is avoided. Nevertheless, the capabilities of MECC have been expanded either by the inclusion of a suction device that is only activated on direct contact with liquid in some circuits or by postoperative autotransfusion of the wrecked erythrocytes by a separate suction device with a cell-saver. Although the tubing diameter is similar between the two systems, the tubing length of the MECC is around half that of the CCPB, resulting in the restriction of priming volume. As a consequence, a higher hematocrit thus a limited need for perioperative blood transfusion is achieved due to less hemodilution. In addition, the inflammatory response is also diminished as a result of less artificial surface area interacting with blood. Finally, a lower dose of heparin is required prior to MECC than prior to CCPB., (Copyright © 2014 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
50. Radial artery as graft for coronary artery bypass surgery: Advantages and disadvantages for its usage focused on structural and biological characteristics.
- Author
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Baikoussis NG, Papakonstantinou NA, and Apostolakis E
- Subjects
- Graft Occlusion, Vascular prevention & control, Humans, Radial Artery anatomy & histology, Tissue and Organ Harvesting adverse effects, Vascular Patency, Coronary Artery Bypass methods, Radial Artery transplantation, Tissue and Organ Harvesting methods
- Abstract
Radial artery (RA) is the most popular arterial graft after the left internal thoracic artery in both low- and high-risk patients undergoing coronary artery bypass grafting. Various arterial grafts such as the right internal thoracic artery, the right gastroepiploic artery, and the inferior epigastric artery have also gained ground over the past 30 years because of the intimal hyperplasia and atherosclerosis of the saphenous vein leading to late graft occlusion. In this review article we would like to present the utility of the RA as a graft, focused mainly on its structural and biological characteristics., (Copyright © 2013 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
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