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https://www.readbyqxmd.com/read/28616341/ascending-aorta-reinterventions
#1
REVIEW
Jacobo Silva Guisasola, Rubén Alvarez-Cabo, Daniel Hernández-Vaquero, Rocío Díaz Méndez
Ascending aorta reinterventions present a challenge for surgeons as the technical difficulties of the procedure and the complex strategic approach can complicate successful treatment. These patients should be treated by surgical teams with ample experience in aortic diseases as they can be at high risk of mortality. The number of interventions on the ascending aorta and aortic arch and the use of biological conducts (lung autograft, homograft, etc.) have increased in recent years; therefore, the number of reinterventions can also be expected to increase, representing 10% of aortic surgical procedures...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28590920/hcarg-commd5-inhibits-erbb-receptor-driven-renal-cell-carcinoma
#2
Hiroyuki Matsuda, Carole G Campion, Kyoko Fujiwara, Jin Ikeda, Suzanne Cossette, Thomas Verissimo, Maiko Ogasawara, Louis Gaboury, Kosuke Saito, Kenya Yamaguchi, Satoru Takahashi, Morito Endo, Noboru Fukuda, Masayoshi Soma, Pavel Hamet, Johanne Tremblay
Hypertension-related, calcium-regulated gene (HCaRG/COMMD5) is highly expressed in renal proximal tubules, where it contributes to the control of cell proliferation and differentiation. HCaRG accelerates tubular repair by facilitating re-differentiation of injured proximal tubular epithelial cells, thus improving mouse survival after acute kidney injury. Sustained hyper-proliferation and de-differentiation are important hallmarks of tumor progression. Here, we demonstrate that cancer cells overexpressing HCaRG maintain a more differentiated phenotype, while several of them undergo autophagic cell death...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28570525/full-root-aortic-valve-replacement-by-stentless-aortic-xenografts-in-patients-with-small-aortic-roots
#3
Reza Tavakoli, Peiman Jamshidi, Max Gassmann
In patients with small aortic roots who need an aortic valve replacement with biological valve substitutes, the implantation of the stented pericardial valve might not meet the functional needs. The implantation of a too-small stented pericardial valve, leading to an effective orifice area indexed to a body surface area less than 0.85 cm(2)/m(2), is regarded as prosthesis-patient mismatch (PPM). A PPM negatively affects the regression of left ventricular hypertrophy and thus the normalization of left ventricular function and the alleviation of symptoms...
May 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28570342/the-perceval-sutureless-aortic-valve-review-of-outcomes-complications-and-future-direction
#4
Ramsey Powell, Marc P Pelletier, Michael W A Chu, Denis Bouchard, Kevin N Melvin, Corey Adams
Surgical aortic valve replacement with a stented prosthesis has been the standard of care procedure for aortic stenosis. The Perceval (LivaNova, London, United Kingdom) is a sutureless aortic valve bioprosthesis currently implanted in more than 20,000 patients. The purpose of this article was to review the literature available after 9 years of clinical experience of the Perceval aortic valve. PubMED, Embase, and the Cochrane Library databases were searched. A meta-analysis of summary statistics from individual studies was conducted...
May 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28503338/infrarenal-infected-aortic-aneurysm-caused-by-streptococcus-pyogenes
#5
Floryn Cherbanyk, Markus Menth, Bernhard Egger, Véronique Erard
Infectious aneurysm is a rare entity associated with significant morbidity and mortality. Current knowledge on pathogenesis, outcome, diagnosis, management, and follow-up remains debatable. We report the case of a patient with Streptococcus pyogenes aneurysm who was successfully treated with a homograft implant and discuss microbiological characteristics, diagnostic methods, and treatment options currently available for this serious disease.
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28481635/heterotopic-implantation-of-decellularized-pulmonary-artery-homografts-in-a-rodent-model-technique-description-and-preliminary-report
#6
Arben Dedja, Massimo A Padalino, Mila Della Barbera, Cosimo Rasola, Paola Pesce, Anna Milan, Michela Pozzobon, David Sacerdoti, Gaetano Thiene, Giovanni Stellin
PURPOSE: Despite a substantial amount of literature on tissue-guided regeneration, decellularization process, repopulation time points and stem cell turnover, more in-depth study on the argument is required. Currently, there are plenty of reports involving large animals, as well as clinical studies facing cardiac repair with decellularized homografts, but no exhaustive rodent models are described. The purpose of this study was to develop such a model in rats; preliminary results are also herein reported...
May 8, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28472474/the-ordeal-of-left-atrioventricular-valve-replacement-in-children-under-1-year-of-age%C3%A2
#7
Elie B Sawan, Johann Brink, Jerome Soquet, Matt Liava'A, Christian P Brizard, Igor E Konstantinov, Yves d'Udekem
OBJECTIVES: This study reviews the outcomes of children under 1 year of age who had left atrioventricular valve (LAVV) replacement (LAVVR) in one centre and explores the benefits of an innovative approach for LAVVR in very small patients. METHODS: Thirteen consecutive patients operated for LAVV replacement between 1997 and 2016 were reviewed retrospectively. Indication for surgery was regurgitation in 7, stenosis in 5 and both stenosis and regurgitation in 1. Nine patients (69%) had previous LAVV repair...
May 2, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28456363/aortic-homograft-replacement-in-a-patient-with-a-porcelain-aorta-a-case-report
#8
Kirolos A Jacob, Rik Rozemeijer, Annemarie M Den Harder, Willem J L Suyker
No abstract text is available yet for this article.
April 7, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28411752/complex-homograft-aortic-reconstruction-new-recipes-from-old-ingredients
#9
EDITORIAL
Neel R Sodha
No abstract text is available yet for this article.
May 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28393786/prosthesis-patient-mismatch-what-cardiac-anesthesiologists-need-to-know
#10
REVIEW
Kathirvel Subramaniam, Soheyla Nazarnia
Prosthesis-patient Mismatch (PPM) is not uncommon with an incidence reported up to 70% after aortic valve (AV) replacement. Severe forms of PPM are less common (up to 20%); PPM can lead to increased short- and long-term morbidity and mortality. It is important to discriminate PPM from other forms of prosthetic valve dysfunction. Sometimes, prosthetic valve degenerative disease may coexist with PPM. Echocardiography plays an important role in the prevention and diagnosis of PPM. Preemptive strategies to prevent PPM include insertion of newer generation prosthetic valves with better hemodynamic characteristics, stentless prosthesis, aortic root enlargement to insert a larger prosthesis, aortic homograft, and transcutaneous AV implantation...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28388797/dorsal-augmentation-with-homologous-rib
#11
Russell W H Kridel, Angela K Sturm
Dorsal augmentation grafts are used to reconstruct and raise the nasal dorsum in patients with dorsal saddling due to trauma, infection, or previous nasal surgery, as well as in patients with a narrow, congenitally low, and/or wide dorsum. Alloplastic implants and various biomaterials are available for grafting, each with advantages and disadvantages. Although autologous septal cartilage is a preferable and often convenient source of cartilage, it is frequently not sufficient for large volume dorsal augmentation, nor is it available in patients who have had septoplasty, infection, previous rhinoplasty with grafting, or significant trauma...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28366077/-multivalve-redo-surgery-in-adult-patient-with-complex-pulmonary-artesia
#12
István Hartyánszky, Barna Babik, Krisztina Kádár, Attila Tóth, László Göbölös, Gábor Bogáts
30-year-old adult with complex pulmonary atresia (previous surgical procedures: in infancy: exploration, at age of 10: ventricular septal defect closing, unifocalization, homograft implantation between right ventricular outflow tract and pulmonary artery) has biventricular dysfunction because of aortic valve regurgitation, ascending aortic aneurysm, and homograft insufficienty. Multivalve surgery: aortic valve plasty, pulmonary homograft changes for homograft and ascending aortic reconstruction by graft were carried out successfully...
April 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28334413/choosing-autologous-vs-irradiated-homograft-rib-costal-cartilage-for-grafting-in-rhinoplasty
#13
Dean M Toriumi
No abstract text is available yet for this article.
May 1, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28329111/hypoplastic-left-heart-syndrome-a-novel-surgical-strategy-for-small-volume-centres
#14
Margaux Pontailler, Régis Gaudin, Marien Lenoir, Ayman Haydar, Diala Kraiche, Damien Bonnet, Pascal Vouhé, Olivier Raisky
OBJECTIVES: We describe in a prospective study, a novel surgical technique for the management of hypoplastic left heart syndrome inspired by the hybrid Norwood approach. METHODS: This new neonatal palliation comprises replacement of the patent ductus arteriosus (PDA) and aortic arch plasty with a pulmonary homograft associated with the banding of both pulmonary arteries and atrial septectomy, under cardiopulmonary bypass without aortic clamping and cardioplegia...
May 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28294663/-role-of-the-homograft-bypass-in-extremity-inferior-s-reconstructions
#15
Zsuzsa Nagy, Zoltán Oláh, Judit Kókai, Anna Barbara Molnár, Ágnes Laczkó, Gábor Viktor Szabó, Viktória Juhász, Dávid Garbaisz, Márton Berczeli, Zsófia Sztupinszky, Zoltán Szeberin
INTRODUCTION: Vascular homografts are used for limb salvage in cases of graft infection after previous reconstructive vascular surgery or inadequate autologous veins. During multi-organ donation the thoracic aorta segment, aortic bifurcation, iliac arteries, femoral arteries, popliteal arteries, femoral veins and greater saphenous veins can be harvested. Our aim was to optimize the use of homografts by analyzing the results of previous procedures. METHODS: The patient information was processed retrospectively, using the clinical computer system...
March 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28273957/morphological-variations-of-middle-ear-ossicles-and-its-clinical-implications
#16
Ritaban Saha, Phalguni Srimani, Ardhendu Mazumdar, Sibani Mazumdar
INTRODUCTION: The middle ear ossicles form a semi rigid chain in the middle of the ear for conduction and amplification of sound waves from the tympanic membrane to the inner ear. Although, our knowledge of the ear ossicles dates back to the 15(th) century, and various studies have been carried out on their morphometry, morphology, anomalies, embryology, function and structure throughout the world, information about the morphology of middle ear ossicles is meagre in Indian subjects. AIM: To find out the morphological variations of middle ear ossicles of right and left sides...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28262297/femoral-vein-homograft-as-right-ventricle-to-pulmonary-artery-conduit-in-stage-1-norwood-operation
#17
T K Susheel Kumar, Mario Briceno-Medina, Shyam Sathanandam, Vijaya M Joshi, Christopher J Knott-Craig
BACKGROUND: The polytetrafluoroethylene tube used as right ventricle to pulmonary artery conduit in the stage 1 Norwood operation is associated with risks of suboptimal branch pulmonary artery growth, thrombosis, free insufficiency, and long-term right ventricular dysfunction. Our experience with use of valved femoral vein homograft as right ventricle to pulmonary artery conduit is described. METHODS: Between June 2012 and December 2015, 15 neonates with hypoplastic left heart syndrome or complex single ventricle underwent stage 1 Norwood operation with valved segment of femoral vein homograft as right ventricle to pulmonary artery conduit...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28262292/combined-aortic-root-replacement-and-mitral-valve-surgery-the-quest-to-preserve-both-valves
#18
Hoda Javadikasgari, Eric E Roselli, Muhammad Aftab, Rakesh M Suri, Milind Y Desai, Mitra Khosravi, Frank Cikach, Monica Isabella, Jay J Idrees, Sajjad Raza, Bassman Tappuni, Brian P Griffin, Lars G Svensson, A Marc Gillinov
OBJECTIVES: Coexisting aortic root and mitral valve pathology is increasingly recognized among patients undergoing surgery. We characterized the pathology and surgical outcomes of patients with combined aortic root and mitral disease. METHODS: From 1987 to 2016, 118 patients (age 52.40 ± 17.71 years) underwent concomitant aortic root and mitral procedures (excluding aortic stenosis, endocarditis, and reoperations). Aortic root pathologies included degenerative aneurysm (94%) and aortic dissection (6%)...
May 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28186276/significant-narrowing-of-the-aortic-homograft-in-the-aortic-ascendens-position
#19
Piotr Dobrowolski, Mirosław Kowalski, Ilona Michałowska, Piotr Hoffman
No abstract text is available yet for this article.
February 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28132395/fatal-neisseria-macacae-infective-endocarditis-first-report
#20
Maude Vecten, Hélène Martel, Jean-Paul Casalta, Sandrine Hubert, Hubert Lepidi, Gilbert Habib, Didier Raoult, Frédérique Gouriet
INTRODUCTION: Neisseria macacae is a Gram-negative diplococcus, found in the oropharynx of healthy Rhesus Monkeys. Infections caused by N. macacae in humans are extremely rare. CASE PRESENTATION: We present here the first case of N. macacae infective endocarditis in a 65-year-old man with a native aortic valve infection complicated by a peri-aortic abscess. N. macacae was isolated from blood culture and was found on the cardiac valve using 16S rDNA detection. Despite an appropriate antibiotic therapy, and aortic homograft replacement, and mitral repair, the patient died 4 days after surgery from a massive hemorrhagic stroke...
June 2017: Infection
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