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Dacron graft

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https://www.readbyqxmd.com/read/29076377/investigating-the-performance-of-four-specific-types-of-material-grafts-and-their-effects-on-hemodynamic-patterns-as-well-as-on-von-mises-stresses-in-a-grafted-three-layer-aortic-model-using-fluid-structure-interaction-analysis
#1
Shahrokh Rahmani, Amin Jarrahi, Mahdi Navidbakhsh, Mansour Alizadeh
One of the important parts of the cardiac system is aorta which is the fundamental channel and supply of oxygenated blood in the body. Diseases of the aorta represent critical cardiovascular bleakness and mortality around the world. This study aims at investigation of hemodynamic parameters in a two-dimensional axisymmetric model of three-layer grafted aorta using fluid-structure interaction (FSI). It assumes that a damaged part of aorta, which may happen as a result of some diseases like aneurysm, dissection and post-stenotic dilatation, is replaced with a biomaterial graft...
October 27, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/29071389/-graft-aneurysms-as-long-term-complication-of-polyester-prostheses-and-their-management-brief-review-based-on-a%C3%A2-systematic-review-of-the-literature
#2
REVIEW
U Barth, K Wasseroth, F Meyer
INTRODUCTION: A material-associated true aneurysm after previous use of a vascular prosthesis for arterial reconstruction mostly in peripheral arterial occlusion disease (PAOD) is considered a rare but serious complication. AIM AND METHOD: The aim of the compact brief review was to describe the rare finding of a true aneurysm of a prosthesis and its diagnosis-specific care including a representative scientific case report, based on selected topic-related references from the medical literature as well as the specific experiences obtained from the successful clinical management in single cases...
October 25, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29049702/aortic-root-and-hemiarch-replacement-in-a-patient-with-loeys-dietz-and-hypoplastic-left-heart-syndromes
#3
Eltayeb Mohamed Ahmed, Alexandru Ciprian Visan, Graham Stuart, Serban Stoica
A 15-year-old patient with hypoplastic left heart syndrome underwent 3-stage palliation by the age of 3 years. He was later diagnosed with Loeys-Dietz syndrome. On follow-up imaging, the neoaorta was dilated at 50 mm in diameter. He underwent aortic root replacement with a composite valve conduit and hemiarch replacement, using a boat-shaped Dacron graft. The uncertainty of how univentricular circulation would tolerate long bypass time steered us away from a total arch replacement. His postoperative recovery was uneventful...
October 11, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29034043/suture-line-dehiscence-after-endovascular-aneurysm-repair-in-a-patient-with-marfan-syndrome
#4
Hirofumi Kasahara, Norimasa Haijima, Takashi Hachiya
A 68-year-old man with Marfan syndrome developed de-novo leakage after endovascular aneurysm repair of a Dacron graft. Findings at subsequent reoperation suggested that the rebound force on the endograft generated by marked longitudinal deformation in the Dacron graft may have placed stress on the suture line, leading to partial dehiscence. The Dacron graft seemed to provide a stable proximal landing zone. However, the strong tendency of some endograft devices to return to their original shape may apply stress that affected weakened regions of the native aorta...
June 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/28962499/valve-sparing-aortic-root-replacement-in-a-bicuspid-aortic-valve-with-papillary-fibroelastoma
#5
Stoyan Kondov, Fabian Alexander Kari, Martin Czerny, Matthias Siepe
We present our surgical strategy in a patient with a bicuspid aortic valve Type I (R/N), aortic root aneurysm and papillary fibroelastoma on the aortic valve's cusp. He underwent valve-sparing aortic root replacement (David V Procedure); we also removed the papillary fibroelastoma from the fused right- and non-coronary cusp. In this case, we used a 34-mm straight Dacron graft for root replacement and an aortic annulus downsized to 30 mm. We use Hegar dilatators for the intraoperative measurement of the aortic annulus...
October 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28955701/sequential-hybrid-repair-of-aorta-and-bilateral-common-iliac-arteries-secondary-to-chronic-aortic-dissection-with-extensive-aneurysmal-degeneration-in-a-marfan-patient
#6
Carlos A Hinojosa, Javier E Anaya-Ayala, Hugo Laparra-Escareno, Rene Lizola, Adriana Torres-Machorro
Marfan syndrome is a connective tissue disorder associated with aortic dissection, aneurysmal degeneration and rupture. These cardiovascular complications represent the main cause of mortality, therefore repair is indicated. We present a 35-year-old woman who experienced acute onset of chest pain. Her imaging revealed a chronic DeBakey type I dissection with aortic root dilation and descending thoracic aneurysmal degeneration. She underwent a Bentall procedure and endovascular exclusion of the descending thoracic aortic aneurysm...
September 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28932749/vascular-tissue-engineering-effects-of-integrating-collagen-into-a-pcl-based-nanofiber-material
#7
Ulf Bertram, Dominik Steiner, Benjamin Poppitz, Dirk Dippold, Katrin Köhn, Justus P Beier, Rainer Detsch, Aldo R Boccaccini, Dirk W Schubert, Raymund E Horch, Andreas Arkudas
The engineering of vascular grafts is a growing field in regenerative medicine. Although numerous attempts have been made, the current vascular grafts made of polyurethane (PU), Dacron®, or Teflon® still display unsatisfying results. Electrospinning of biopolymers and native proteins has been in the focus of research to imitate the extracellular matrix (ECM) of vessels to produce a small caliber, off-the-shelf tissue engineered vascular graft (TEVG) as a substitute for poorly performing PU, Dacron, or Teflon prostheses...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28928918/arterial-thoracic-outlet-syndrome-secondary-to-hypertrophy-of-the-anterior-scalene-muscle
#8
Erion Qaja, Sara Honari, Robert Rhee
Thoracic outlet syndrome (TOS) was first introduced in literature by Peet et al. in 1956. Since then is has been studied extensively and subcategorized into at least four closely related syndrome. Neurogenic TOS due to the compression of brachial plexus, arterial TOS in cases of compression of the subclavian artery, venous TOS in cases of compression of the subclavian vein, and non-specific type of TOS. Neurogenic TOS is by far the most common consisting of 95% of the cases, followed by venous and lastly arterial...
August 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28914400/an-in-vivo-study-on-endothelialized-vascular-grafts-produced-by-autologous-biotubes-and-adipose-stem-cells-adscs
#9
Yu Chieh Tseng, Jun Neng Roan, Ying Chiang Ho, Chih Chan Lin, Ming Long Yeh
Currently, commercial synthetic vascular grafts made from Dacron and ePTFE for small-diameter, vascular applications (<6 mm) show limited reendothelization and are less compliant, often resulting in thrombosis and intimal hyperplasia. Although good blood compatibility can be achieved in autologous arteries and veins, the number of high quality harvest sites is limited, and the grafts are size-mismatched for use in the fistula or cardiovascular bypass surgery; thus, alternative small graft substitutes must be developed...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28893704/late-complication-after-thoracic-endovascular-aortic-repair-what-is-the-role-of-an-open-surgical-conversion
#10
Lazar Davidovic, Milos Sladojevic, Igor Koncar, Miroslav Markovic, Tulga Ulus, Nikola Ilic, Marko Dragas, Vladimir Cvetic, Zoran Rancic
BACKGROUND: The aim was to evaluate the causes of thoracic endovascular aortic repair (TEVAR) failure and conversion to open surgery (COS) in a vascular center with high-volume open surgery and low-volume TEVAR procedures. METHODS: A total of 8 patients (6 men; mean age, 55.14 years) underwent COS after TEVAR. The indications for COS, intraoperative strategy, and early postoperative and mid-follow-up results were analyzed. RESULTS: The indications for COS were persistent proximal type I endoleak with progressive aneurysm enlargement in 2 patients, type III endoleak in 1 patient, progressive aneurysm enlargement with no endoleak in 1 patient, stent-graft migration in 2 patients, secondary aortoesophageal fistula in 1 patient, secondary aortoesophageal and aortobronchial fistula in 1 patient, and distal progression of the aneurysmal disease in 2 patients...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28868316/a-rare-and-late-complication-after-left-ventricular-assist-device-explantation
#11
George Gradinariu, André R Simon, Jullien Gaer
Late complications can arise after explantation of a left ventricular assist device. We report the case of a patient who presented at the age of 19 years with peri-partum cardiomyopathy and was initially managed with a biventricular support device, which was subsequently upgraded to an ambulatory left ventricular assist device. This was successfully explanted after myocardial recovery via a minimally invasive approach 7 months later. The patient re-presented 5 years following explantation with hemoptysis. At redo sternotomy, a 10-cm remnant of the outflow graft was found to be eroding the surface of the right lung...
April 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28868309/aortic-root-reconstruction-with-a-new-dacron-graft-featuring-prefabricated-coronary-side-branches-lessons-learned-from-the-cabrol-procedure
#12
Domenico Calcaterra, Mohammad-Ali Jazayeri, Joseph W Turek, Kalpaj R Parekh, Mohammad Bashir, Karam Karam, Robert S Farivar
BACKGROUND: Coronary button reimplantation can represent a technical challenge of aortic root reconstruction that can be associated with significant morbidity and mortality. With the goal of simplifying coronary reimplantation and reducing the incidence of related complications, we designed a new Dacron graft with prefabricated coronary branches to minimize coronary artery mobilization and prevent the potential mechanical complications of reattachment to the body of the graft. METHODS: Between June 2010 and May 2012, we implanted the graft in eight patients (six males, two females) ranging in age from 42-68 years (mean, 54 years)...
February 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28807407/infrarenal-aorta-as-the-donor-site-for-bypasses-to-the-superior-mesenteric-artery-for-chronic-mesenteric-ischemia-a-prospective-clinical-series-of-24-patients
#13
Giulio Illuminati, Giulia Pizzardi, Francesco G Calio', Rocco Pasqua, Federica Masci, Francesco Vietri
BACKGROUND: Treatment of symptomatic, chronic mesenteric ischemia is indicated to relieve symptoms and prevent acute ischemia and death. Current therapeutic options include endovascular and open surgery. The purpose of this prospective study was to evaluate the results of bypasses to the superior mesenteric artery arising from the infrarenal aorta or infrarenal aortic grafts. METHODS: From January 1999 to December 2016, 24 consecutive patients with a mean age of 61 years underwent a prosthetic bypass to the superior mesenteric artery...
November 2017: Surgery
https://www.readbyqxmd.com/read/28735332/the-usefulness-of-biosynthetic-vascular-graft-omniflow-ii-and-autologous-veins-for-the-treatment-of-massive-infection-of-dacron-vascular-graft-with-enterococcus-faecalis-hlar
#14
Witold Woźniak, Robert Bajno, Michał Świder, Piotr Ciostek
Infections of vascular grafts are the most severe complications in vascular surgery. We present the case of a 73-year-old male with infection of a dacron prosthesis with a strain of Enterococcus faecalis. The patient was treated with replacement of a full prosthesis with a combined graft constructed from Biosynthetic Vascular graft Omniflow and autologous veins. This graft is recommended for implantation in patients with a higher risk of infection. Our case is one of the first reported usage of this kind of graft in the aortic region and in a 2 years observation period no recurrence of infection was observed...
January 2, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28694579/surgical-repair-of-congenital-abdominal-aortic-aneurysm-in-a-1-year-old-child-with-literature-review
#15
Ashwani Bansal, Aparajita Mitra, Akshay Kumar Bisoi, Sandeep Agarwala
Reported here is a case of 1-year-old male child who presented with huge abdominal mass, which on radiological investigation was diagnosed as retroperitoneal pseudoaneurysm of the aorta. On exploration, it was found to be a true aneurysm of infrarenal abdominal aorta with inflow agenesis. Aneurysm was excised, and aorta was reconstructed with 10 mm Dacron graft. Postoperative computed tomography angiography showed patent graft with good distal runoff. Literature review revealed that only 26 cases of congenital abdominal aortic aneurysm had been reported so far...
July 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28679320/a-rare-case-of-non-traumatic-acute-intraabdominal-hemorrhage-ruptured-superior-mesenteric-artery-aneurysm
#16
Ersin Borazan, Latif Yılmaz, Alper Aytekin, Gökhan Gökaslan, Selim Kervancıoğlu
INTRODUCTION: Rupture of superior mesenteric artery aneurysm (SMAA) is a very rare and life-threatening condition, presenting with acute intraabdominal hemorrhage. CASE: The patient was hospitalized upon complaint of nonspecific severe abdominal pain. Diagnosis of SMAA was established by abdominal Doppler ultrasound that showed a pseudo-aneurysmal lesion with size of 76 × 47 mm at the superior mesenteric main branch. Endovascular stenting was not performed because of the wide neck in the segment of the jejunal branches from SMA and the risk of branch loss during treatment...
July 6, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28666489/atresia-of-the-descending-aorta-in-a-young-woman-requiring-bypass-graft
#17
Adcasdc Sadfasdf Dsc, Ammarah Mashhood, Taimur Asif Ali, Saulat Hasnain Fatimi
Congenital aortic atresia is a malformation accounting for 4 - 6% of all congenital heart diseases in children. Left ventricular outflow obstruction due to atresia is common at the aortic valve but rarely has atresia been identified in the descending aorta. We report the case of a 25-year woman who was evaluated for headache and uncontrolled hypertension. CTscan chest showed a short atretic segment in the descending aorta at the isthmus, distal to the takeoff of the subclavian artery. She underwent surgery; a 22 mm Dacron graft was taken and jump graft was placed between the arch of the aorta and the descending aorta, using partial occlusion clamps...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28647631/a-prospective-randomized-multicenter-clinical-trial-on-the-safety-and-efficacy-of-a-ready-to-use-fibrin-sealant-as-an-adjunct-to-hemostasis-during-vascular-surgery
#18
Ian Chetter, Gerard Stansby, José Aurelio Sarralde, Vicente Riambau, Antonio Giménez-Gaibar, Kent MacKenzie, Francisco Acín, Jordi Navarro-Puerto
BACKGROUND: Anastomotic or "stitch hole" bleeding is common during vascular surgery with synthetic material such as Dacron or polytetrafluoroethylene. Hemostatic adjuncts such as fibrin sealant (FS) may reduce blood loss and operating time in such circumstances. We evaluated the safety and the hemostatic effectiveness of a ready-to-use human plasma-derived FS in vascular surgery. METHODS: Patients with mild/moderate suture line bleeding during elective, open, vascular surgery using synthetic grafts or patches were studied...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28642109/neoaortic-xenoprosthetic-grafts-for-treatment-of-mycotic-aneurysms-and-infected-aortic-grafts
#19
Chukwudubem Anibueze, Visesh Sankaran, Umar Sadat, Kelvin Tan, Yvonne G Wilson, Robert E Brightwell, Michael S Delbridge, Philip W Stather
BACKGROUND: There is no international consensus regarding the optimum management of infected aortae (mycotic aneurysms, infected aortic grafts). Neoaortoiliac reconstruction has advantages over extra-anatomical bypass grafting; however, the use of autologous vein is associated with venous hypertension and compartment syndrome, alternatively cadaveric homografts are associated with high rates of perianastomotic hemorrhage, limb occlusion, and pseudoaneurysm. Arterial repair using xenoprosthetic patches is associated with lower infection rates compared to the use of prosthetic material...
June 20, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28631316/recannulation-of-the-axillary-artery-in-aortic-and-complex-cardiac-surgery
#20
Philippa Jane Temple Bowers, Manu Narain Mathur
OBJECTIVES: Axillary artery cannulation has been used as an alternative site for cardiopulmonary bypass during surgery for aortic dissections and aneurysmal disease of the ascending aorta and arch. This study reports our experience with reusing the axillary artery for cardiopulmonary bypass during complex aortic and cardiac surgical procedures. METHODS: This was a retrospective review of a single surgeon's experience of recannulating the axillary artery for redo operations in complex aortic surgery...
July 2017: Journal of Cardiac Surgery
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