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https://www.readbyqxmd.com/read/28157718/in-vitro-comparative-assessment-of-decellularized-bovine-pericardial-patches-and-commercial-bioprosthetic-heart-valves
#1
Paola Aguiari, Laura Iop, Francesca Favaretto, Cátia Marisa Lourenco Fidalgo, Filippo Naso, Gabriella Milan, Vincenzo Vindigni, Michel Spina, Franco Bassetto, Andrea Bagno, Roberto Vettor, Gino Gerosa
Notwithstanding their wide exploitation, biological prosthetic heart valves are characterized by limited durability (10-15 years). The treatment of biological tissues with chemical crosslinking agents such as glutaraldehyde accounts for the enhanced risk of structural deterioration associated with the early failure of bioprosthetic valves. To overcome the shortcomings of the currently available solutions, adoption of decellularized biological tissues of animal origin has emerged as a promising approach. The present study aims to assess in vitro cardiovascular scaffolds composed of bovine pericardium decellularized with the novel TRITDOC (TRIton-X100 and TauroDeOxyCholic acid) procedure...
February 3, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28131425/evaluation-of-hemodynamic-performance-of%C3%A2-aortic-valve-bioprostheses-in-a-model-of%C3%A2-oversizing
#2
John D Cleveland, Michael E Bowdish, Carol E Eberhardt, Wendy J Mack, James A Crabtree, Thomas A Vassiliades, Alan M Speir, Yogesh A Darekar, Amy E Hackmann, Vaughn A Starnes, Robbin G Cohen
BACKGROUND: The risk of patient-prosthesis mismatch drives most surgeons to select the largest bioprosthesis possible during aortic valve replacement, but interactions between the native aortic annulus and valve prosthesis remain poorly defined. We examined the hemodynamic and functional consequences of oversizing contemporary bioprostheses in an in vitro model. METHODS: Three sizes each (21, 23, and 25 mm) of 5 aortic bioprostheses (Magna, Edwards Lifesciences, Irvine, CA; Trifecta and Epic, St...
January 25, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28104190/in%C3%A2-vitro-coronary-flow-after-transcatheter-aortic-valve-in-valve-implantation-a-comparison-of-2-valves
#3
Sina Stock, Michael Scharfschwerdt, Roza Meyer-Saraei, Doreen Richardt, Efstratios I Charitos, Hans-Hinrich Sievers, Thorsten Hanke
BACKGROUND: Transcatheter aortic valve-in-valve implantation (TAVI-ViV) is an evolving treatment strategy for degenerated surgical aortic valve bioprostheses (SAVBs). However, there is some concern regarding coronary obstruction, especially after TAVI-ViV in calcified SAVBs with externally mounted leaflets. We investigated in vitro coronary flow and hydrodynamics after TAVI-ViV using 2 modern SAVBs with externally and internally mounted leaflets. METHODS: Aortic root models including known risk factors for coronary obstruction served for the implantation of SAVBs with either externally mounted leaflets (St Jude Trifecta, size 25) or internally mounted leaflets (Edwards Perimount Magna Ease, size 25)...
February 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27988978/early-surgical-outcomes-and-oncological-results-of-robot-assisted-partial-nephrectomy-a-multicentre-study
#4
Rajan Veeratterapillay, Sanjai K Addla, Clare Jelley, John Bailie, David Rix, Steve Bromage, Neil Oakley, Robin Weston, Naeem A Soomro
OBJECTIVE: To describe a multicentre experience of robot-assisted partial nephrectomy (RAPN) in northern England, with focus on early surgical outcomes and oncological results. PATIENTS AND METHODS: All consecutive patients undergoing RAPN at four tertiary referral centres in northern England in the period 2012-2015 were included for analysis. RAPN was performed via a transperitoneal approach using a standardized technique. Prospective data collection was performed to capture preoperative characteristics (including R...
December 18, 2016: BJU International
https://www.readbyqxmd.com/read/27980283/pure-cusp-tear-of-trifecta-bioprosthesis-2-years-after-aortic-valve-replacement
#5
Masaki Hamamoto, Taira Kobayashi, Masamichi Ozawa, Kosuke Yoshimura
Trifecta is a stented bioprosthetic heart valve with a bovine pericardial sheet externally mounted on a titanium stent. This valve is applied only for aortic valve replacement (AVR), providing excellent hemodynamics and extremely low incidence of structural valve deterioration (SVD). A 76-year-old woman presented with dyspnea on effort 24 months after AVR with a 21-mm Trifecta valve. Echocardiography revealed severe aortic regurgitation with prolapse of a cusp of Trifecta valve, which suggested that she developed acute heart failure due to early SVD...
December 14, 2016: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27964975/midterm-multicenter-clinical-and-hemodynamic-results-for-the-trifecta-aortic-pericardial-valve
#6
Scott Goldman, Anson Cheung, Joseph E Bavaria, Michael R Petracek, Mark A Groh, Hartzell V Schaff
OBJECTIVE: To evaluate the midterm hemodynamic performance and clinical outcomes of the Trifecta aortic pericardial valve. METHODS: In a multicenter, prospective, nonrandomized, follow-up study, 710 patients underwent surgical implantation of a pericardial stented aortic prosthesis (Trifecta valve; St Jude Medical, St. Paul, Minn). The valve is constructed from bovine pericardium mounted externally onto a titanium stent. Subjects were followed on an annual basis over 6 years...
November 18, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27955900/midterm-durability-and-hemodynamic-performance-of-a-third-generation-bovine-pericardial-prosthetic-aortic-valve-the-leipzig-experience
#7
Sven Lehmann, Anna Meyer, Thomas Schroeter, Madlen Uhlemann, Julia Fischer, Sergey Leontyev, Jens Garbade, David Holzhey, Martin Misfeld, Friedrich-Wilhelm Mohr
BACKGROUND: The Trifecta valve (St. Jude Medical, St. Paul, MN) is a stented bovine pericardial bioprosthesis for aortic valve replacement (AVR). Implantation experience and midterm follow-up of this valve have not yet been reported from a large single-center cohort. METHODS: We retrospectively analyzed data from 918 patients (73.2 ± 6.5 years; logistic European System for Cardiac Operative Risk Evaluation [EuroSCORE], 13.2 ± 14.3) who underwent AVR. Analyses addressed implantation safety, short- and long-term survival, and hemodynamic valve performance...
December 9, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27867812/comparisons-of-oncological-and-functional-outcomes-among-radical-retropubic-prostatectomy-high-dose-rate-brachytherapy-cryoablation-and-high-intensity-focused-ultrasound-for-localized-prostate-cancer
#8
Po Hui Chiang, Yi Yang Liu
PURPOSE: To conduct a retrospective, single institutional and comparative study for radical retropubic prostatectomy (RRP), high dose rate brachytherapy (HDRBT), cryoablation and high-intensity focused ultrasound (HIFU) in localized prostate cancer with respect to oncological and functional outcomes. METHODS: We reviewed 97, 161, 114 and 120 patients of RRP, HDRBT, cryoablation and HIFU respectively for localized prostate cancer from May 2008 to December 2013. PSA biochemical recurrence, salvage treatment-free rate, metastasis-free rate, and biochemical recurrence-free survival were analyzed for oncological outcomes...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27862788/robot-assisted-partial-nephrectomy-continued-refinement-of-outcomes-beyond-the-initial-learning-curve
#9
David J Paulucci, Ronney Abaza, Daniel D Eun, Ashok K Hemal, Ketan K Badani
OBJECTIVES: To evaluate trends in peri-operative outcomes of 250 consecutive cases beyond the initial learning curve (LC) of robot-assisted partial nephrectomy (RAPN) among multiple surgeons. PATIENTS AND METHODS: A multi-institutional database was used to evaluate trends in patient demographics (e.g. age, gender, comorbidities), tumour characteristics (e.g. size, complexity) and peri-operative outcomes (e.g. warm ischaemia time [WIT], operating time, complications, estimated blood loss [EBL], trifecta achievement) in consecutive cases 50-300 (n = 960) from 2008 to 2016 among four experienced surgeons...
November 8, 2016: BJU International
https://www.readbyqxmd.com/read/27773869/valve-in-valve-outcome-design-impact-of-a-pre-existing-bioprosthesis-on-the-hydrodynamics-of-an-edwards-sapien-xt-valve
#10
Christian Doose, Maximilian Kütting, Sandrine Egron, Pejman Farhadi Ghalati, Christoph Schmitz, Marc Utzenrath, Alexander Sedaghat, Buntaro Fujita, Thomas Schmitz-Rode, Stephan Ensminger, Ulrich Steinseifer
OBJECTIVES: Bioprosthetic aortic heart valves are increasingly implanted in younger patients. Therefore, a strategy for potential valve failure should be developed before implanting the 'first valve'. The goal of this in vitro study was to provide insight into the effects of the design of a bioprosthesis on a valve-in-valve implanted Sapien XT valve. METHODS: The hydrodynamic performance of a 23-mm Sapien XT valve implanted in Vascutek Aspire, Edwards Perimount, Medtronic Mosaic and St...
October 23, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27697360/mid-term-durability-of-the-trifecta-bioprosthesis-for-aortic-valve-replacement
#11
Amedeo Anselmi, Vito Giovanni Ruggieri, Bernard Lelong, Erwan Flecher, Hervé Corbineau, Thierry Langanay, Jean-Philippe Verhoye, Alain Leguerrier
OBJECTIVE: To clarify the mid-term durability of the Trifecta bioprosthesis for aortic valve replacement (AVR). METHODS: We retrospectively analyzed the prospectively collected data of 824 consecutive implants of the Trifecta valve at a single institution. A 100% complete follow-up was available (average duration, 2.2 ± 1.3 years; range, 0.03-6.9 years; 1747.6 patient-years). Echocardiography data at discharge were recorded prospectively. RESULTS: Operative mortality was 3...
January 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27668693/retroperitoneoscopic-partial-nephrectomy-for-moderately-complex-ventral-hilar-tumors-surgical-technique-and-trifecta-outcomes-from-a-single-institution-in-china
#12
Longfei Liu, Lin Qi, Yangle Li, Minfeng Chen, Chao Li, Xu Cheng, Peihua Liu, Xiongbing Zu
OBJECTIVES: T1 ventral renal hilar tumors (VRHTs) represent a very special type of tumor, for which laparoscopic partial nephrectomy (LPN) by the retroperitoneal approach is challenging. In this study, we report our surgical technique and Trifecta results. METHODS: Renal rotation technique has been established for retroperitoneal laparoscopic partial nephrectomy (RLPN) for VRHTs in our institution. Trifecta was used as a composite outcome measure for assessing quality of PLPN using this technique...
September 26, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27641297/management-of-small-aortic-annulus-in-the-era-of-sutureless-valves-a-comparative-study-among-different-biological-options
#13
Aly Ghoneim, Ismail Bouhout, Philippe Demers, Amine Mazine, Mary Francispillai, Ismail El-Hamamsy, Michel Carrier, Yoan Lamarche, Denis Bouchard
OBJECTIVE: Aortic valve replacement (AVR) in patients with a small aortic annulus is a challenging problem. The objective of this study was to compare 4 surgical approaches in terms of hemodynamics and perioperative outcomes. METHODS: A retrospective single-center study included 351 consecutive patients with a small aortic annulus (≤21 mm) who underwent aortic valve surgery between January 2007 and December 2014. Surgical techniques included standard AVR in 259 (74%) patients, aortic root enlargement in 20 (6%), implantation of a stentless bioprosthesis in 23 (6%), and sutureless AVR in 49 (13%)...
October 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27620534/robot-assisted-partial-nephrectomy-confers-excellent-long-term-outcomes-for-the-treatment-of-complex-cystic-renal-tumors-median-follow-up-of-58-months
#14
Ali Abdel Raheem, Atalla Alatawi, Irela Soto, Dae Keun Kim, Lawrence Hc Kim, Glen Denmer Santok, Trenton Gh Lum, Young Deuk Choi, Koon Ho Rha
OBJECTIVES: To analyze long-term outcomes of robot-assisted partial nephrectomy for treatment of complex cystic renal tumors. METHODS: We retrospectively analyzed the data of patients who underwent robot-assisted partial nephrectomy for cystic (n = 32) and solid (n = 263) renal masses at Severance Hospital, Seoul, Korea. The primary outcome was assessment of perioperative safety for cystic tumor. Secondary outcomes were evaluation of long-term oncological and functional results...
December 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/27575598/current-knowledge-and-future-perspectives-regarding-stented-valves
#15
Giuseppe Santarpino, Jurij M Kalisnik, Theodor Fischlein, Steffen Pfeiffer
Aortic valve bioprostheses are commonly implanted in the current era (also in younger patients) as they may obviate the need for anticoagulation while providing better hemodynamic performance and a more favorable quality of life. The steady increase in the use of biological valves has prompted the development of several different models of conventional stented bioprostheses. At present, there are four main types of stented aortic bioprostheses that compete in the market: the LivaNova Crown PRT (LivaNova Group, Burnaby, Canada), the St...
October 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27570156/pulmonary-valve-replacement-with-a-trifecta-valve-is-associated-with-reduced-transvalvular-gradient
#16
Brian C Gulack, Ehsan Benrashid, Robert D B Jaquiss, Andrew J Lodge
BACKGROUND: Outcomes after surgical pulmonary valve replacement (PVR) in patients with congenital cardiac disease are limited by long-term valve deterioration, which may be hastened by turbulent flow. The use of the Trifecta valve (St. Jude Medical, Little Canada, MN) at our institution (Duke University Medical Center, Durham, NC) appears to result in low postimplantation transvalvular gradients. This study was performed to compare the early transvalvular gradient associated with the Trifecta valve with that associated with two other valves commonly used for PVR...
February 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27549228/performance-of-stented-biological-valves-for-right-ventricular-outflow-tract-reconstruction
#17
Christian Buchholz, Andreas Mayr, Ariawan Purbojo, Martin Glöckler, Okan Toka, Robert A Cesnjevar, André Rüffer
OBJECTIVES: This retrospective single-centre review presents mid- and long-term results of stented biological valves (SBVs) in the pulmonary position. METHODS: Fifty-two SBVs (17 Carpentier-Edwards Supraannular; 13 Carpentier-Edwards Perimount; 12 St. Jude Medical Trifecta; 4 Sorin Mitroflow; 4 Sorin Soprano; 2 Sorin More) were implanted between 2000 and 2015. The median valve size, patient age and weight were 23 mm (range 19-27), 22.8 years (range 5-77) and 62...
December 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27520385/nephron-sparing-surgery-for-renal-cell-carcinoma-up-to-7%C3%A2-cm-in-the-context-of-guideline-development-a-contribution-of-healthcare-research
#18
Steffen Lebentrau, Sven Rauter, Daniel Baumunk, Frank Christoph, Frank König, Matthias May, Martin Schostak
INTRODUCTION: If technically feasible, organ-preservation is indicated for T1 renal cell carcinoma (RCC), since partial nephrectomy (PN) is equivalent to radical nephrectomy with regard to tumor-specific survival and probably achieves better overall survival. Treatment results of a training clinic were assessed with regard to guideline adherence and treatment quality. METHODS: Based on 220 open interventions in the time periods 2006-2009 (TP1) and 2010-2013 (TP2), a retrospective single center examination was performed to determine the influence of patient-age, sex, BMI, ASA-score, preoperative eGFR, PADUA-score and surgeon's experience on PN-rate and trifecta-outcome (R0 resection, warm ischemia time ≤25 min, no intraoperative complications and no blood-transfusion and postoperative complications grade ≤1 Clavien and Dindo)...
August 12, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27493484/the-first-pilot-comprehensive-evaluation-of-the-outcomes-of-different-types-of-robotic-surgeries-in-the-different-surgical-departments-the-penta-tetra-and-trifecta-achievements-in-robotic-surgeries
#19
Takehiro Sejima, Shuichi Morizane, Kazunori Fujiwara, Keigo Ashida, Hiroaki Saito, Yuji Taniguchi, Hiroshige Nakamura, Atsushi Takenaka
BACKGROUND: To ensure safe performance in robotic surgery, the Minimal Invasive Surgery Center (MISC) is composed of the anesthesiology department, five surgery departments and co-medical staff in our institution. The objective of this study was to evaluate the outcomes of different types of robotic surgeries for cancer treatment (n = 326) from different surgery departments in the MISC. METHODS: The outcomes of robot-assisted radical prostatectomy (RARP), partial nephrectomy (RAPN), transoral robotic surgery (TORS) for pharyngeal cancer, and robotic surgery for lung, gastric and rectal cancer were evaluated using the similar concept of pentafecta in RARP...
June 2016: Yonago Acta Medica
https://www.readbyqxmd.com/read/27476571/-acquired-left-ventricular-right-atrial-communication-due-to-infective-endocarditis-report-of-a-case
#20
Yoshie Sakasai, Akinobu Sasaki, Osamu Shigeta, Yasuaki Tsumagari, Hidekazu Tsuneoka, Masako Misaki, Noriyuki Takeyasu
A 77-year-old woman presented with a 3-week history of low grade fever, appetite loss and dizziness. An electrocardiogram showed complete heart block. Echocardiography demonstrated severe aortic valve stenosis and a mass of probable vegetation 2 cm in diameter on the atrioventricular septum in the right atrium (RA), but no obvious intra-cardiac fistula. There was no growth of organism in blood cul tures. In the 4th week after admission, a harsh and continuous cardiac murmur was detected for the 1st time. Portable echocardiography revealed disappearance of the mass in the RA, and showed an intra-cardiac shunt from the left ventricle( LV) to RA...
August 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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