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https://www.readbyqxmd.com/read/28637199/first-ex-vivo-and-preliminary-sheep-model-results-of-the-new-tribio-aortic-valve-bioprosthesis-in-small-aortic-annuli
#1
Sina Stock, Hans-Hinrich Sievers, Doreen Richardt, Michael Scharfschwerdt
OBJECTIVES: : Small aortic annuli are challenging in aortic valve replacement. Prosthesis-patient mismatch, accompanied by high transvalvular gradients and small orifice area, is an often faced problem impairing postoperative outcome. The new TRIBIO bioprosthesis aims to enable enhanced haemodynamics, being increasingly important with decreasing annular size. This study compares ex vivo hydrodynamics of TRIBIO with 2 established bioprostheses in small annuli at different stroke volumes, simulating 'rest' and 'exercise', and evaluates haemodynamics of TRIBIO in a sheep model...
June 20, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28636721/evaluating-evolving-technologies-in-a-time-of-rapid-change-the-case-of-transcatheter-aortic-valve-replacement
#2
Robert M Califf
No abstract text is available yet for this article.
June 21, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28636718/trends-and-outcomes-of-off-label-use-of-transcatheter-aortic-valve-replacement-insights-from-the-ncdr-sts-acc-tvt-registry
#3
Ravi S Hira, Sreekanth Vemulapalli, Zhuokai Li, James M McCabe, John S Rumsfeld, Samir R Kapadia, Mahboob Alam, Hani Jneid, Creighton Don, Mark Reisman, Salim S Virani, Neal S Kleiman
Importance: Transcatheter aortic valve replacement (TAVR) was approved by the US Food and Drug Administration for severe aortic stenosis in patients who cannot undergo surgery and for patients at high operative risk. Use of TAVR for off-label indications has not been previously reported. Objective: To evaluate patterns and adverse outcomes of off-label use of TAVR in US clinical practice. Design, Setting and Participants: Patients receiving commercially funded TAVR in the United States are included in the Transcatheter Valve Therapy Registry...
June 21, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28636475/surgical-aortic-valve-replacement-for-stenosis-of-tavi-device
#4
M Sooknunden, M A Radermecker, J O Defraigne, Vincent Tchana-Sato
We here report the case of a stenosis of the CoreValve(®) system due to reduced mobility of prosthesis cusps for which a surgical replacement of the aortic valve was proposed. The exact mechanism leading to this impaired mobility of the leaflets is yet to be determined. We also underline the fact a transcatheter aortic valve implantation (TAVI) device can be replaced by a surgical replacement without excessive operative risks despite the patient being initially considered as high-risk.
March 1, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28634535/effectiveness-and-safety-of-daptomycin-in-patients-with-infective-endocarditis-undergoing-heart-valve-replacement-a-subgroup-analysis-from-real-world-data
#5
Achyut Guleri, Riccardo Utili, Pascal Dohmen, Kamal Hamed
BACKGROUND: European Cubicin(®) Outcomes Registry and Experience (EU-CORE) was a retrospective, non-interventional, multicenter registry that collected real-world clinical outcomes following daptomycin use for the treatment of Gram-positive infections. EU-CORE data from patients with infective endocarditis (IE) who underwent heart valve replacement were analysed. METHODS: Clinical outcomes were assessed as success (cured or improved), failure, or non-evaluable...
March 2017: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28633375/final-5-year-clinical-and-echocardiographic-results-for-treatment-of-severe-aortic-stenosis-with-a-self-expanding-bioprosthesis-from-the-advance-study
#6
Ulrich Gerckens, Corrado Tamburino, Sabine Bleiziffer, Johan Bosmans, Peter Wenaweser, Stephen Brecker, Jia Guo, Axel Linke
Aims: The ADVANCE study was designed to evaluate the safety and effectiveness of transcatheter aortic valve implantation (TAVI) with a self-expanding bioprosthesis in real-world patients with symptomatic, severe aortic stenosis at high surgical risk for valve replacement. Methods and results: Study participants were enrolled from 44 experienced centres in 12 countries. Patient eligibility, treatment approach, and choice of anaesthesia were determined by the local Heart Team...
June 13, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28633278/radiopaque-marker-addition-during-aortic-root-replacement-with-the-use-of-a-freestyle-porcine-bioprosthesis
#7
Olivia M Crowley, John R Doty
Aortic root replacement is indicated for aortic root aneurysm, small aortic root, and most root abscesses. This report describes the placement of a radiopaque marker during aortic root replacement using a Freestyle porcine bioprosthesis. This marker is a useful landmark during fluoroscopy for transcatheter valve-in-valve aortic valve replacement in the event of bioprosthesis degeneration.
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633265/again-two-melodies-in-concert-transcatheter-double-valve-replacement-in-hedinger-syndrome
#8
Roberta De Rosa, Dietmar Schranz, Andreas M Zeiher, Stephan Fichtlscherer
Transcatheter pulmonary valve implantation is established as a valuable option to reconstruct failing right ventricular outflow tract function. Percutaneous tricuspid valve-in-valve or valve-in-ring reconstruction is even applied with increasing acceptance. A 46-year-old woman with a diagnosis of carcinoid-dependent right heart failure underwent surgical bioprosthetic tricuspid and pulmonary valve replacement. Almost 1 year later, she presented again with markedly dilatated and reduced right heart function caused by degeneration of both biologic valves...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633264/rapidly-progressive-bioprosthetic-aortic-valve-stenosis-due-to-bartonella-species-endocarditis
#9
Kathy Schnitzer, Zafrir Or, Shtiwi Sawaed, Erez Sharoni, Naiel Bisharat
Rapid progression of valvular stenosis in the setting of infective endocarditis is extremely rare. Here we describe a patient with Bartonella endocarditis on a bioprosthetic aortic valve that caused rapidly progressive aortic stenosis without regurgitation. At operation the bioprosthetic valve was severely fibrotic and calcified, with markedly thickened and distorted leaflets and circular partial detachment from the aortic ring. The patient underwent aortic root replacement with aortic bioprosthesis and aortic grafting with reimplantation of the coronary ostia...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633263/structural-valve-deterioration-of-a-subcoronary-implanted-stentless-bioprosthesis-how-to-treat
#10
Eva Karolina Harmel, Lenard Conradi, Ulrich Schäfer, Florian Deuschl, Niklas Schofer, Stefan Blankenberg, Hermann Reichenspurner, Evaldas Girdauskas
We present a case of transcatheter valve-in-valve replacement performed because of structural valve deterioration of a subcoronary implanted stentless aortic bioprosthesis. A 23-mm self-expandable transcatheter heart valve (THV) with supraannular seating was chosen. The procedure was performed with the patient under conscious sedation. After anchoring and partial valve deployment, the patient experienced an acute onset of angina. The angiogram showed left main coronary artery obstruction. Prompt resheathing and retrieval of the THV was performed, and the procedure was aborted...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633260/total-chordal-sparing-mitral-valve-replacement-in-rheumatic-disease-a-word-of-caution
#11
Samuel M Kessel, Robert B Hawkins, Leora T Yarboro, Gorav Ailawadi
Total chordal preservation is the standard for mitral valve replacement to maintain long-term left ventricular geometry. Whereas it is appropriate for functional and degenerative mitral regurgitation, the role of chordal sparing in rheumatic valve disease is less well understood, with limited evidence supporting total chordal sparing. Inasmuch as this autoimmune disease affects the subvalvular apparatus in addition to the leaflets, it can be expected to continue after surgical repair. Here we present 2 patients who experienced adverse events associated with total chordal sparing mitral replacement as a result of disease progression with rapid fibrous growth causing inflow obstruction and early prosthetic valve failure...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633252/delayed-management-of-partial-aortic-valve-avulsion-after-transcatheter-aortic-valve-replacement
#12
Dimitri Sherev, Khalid Azizi, Nassir A Azimi, Susan Van Nordheim, Ricardo Moreno-Cabral
We report a case of delayed treatment of a partial aortic valve leaflet avulsion during transcatheter aortic valve replacement (TAVR) and its successful management by a percutaneous snare retrieval technique. Post-TAVR transesophogeal echocardiography showed an avulsed native valve leaflet. We deferred retrieval of the mass with anticoagulant agents. One month later, a 30-mm EN-Snare was used to snare the mass. This case report demonstrates that the management of an avulsed aortic valve leaflet can be safely deferred with the use of an anticoagulant agent...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633216/transatlantic-editorial-on-transcatheter-aortic-valve-replacement
#13
EDITORIAL
Vinod H Thourani, Michael A Borger, David Holmes, Hersh Maniar, Fausto Pinto, Craig Miller, Josep Rodés-Cabau, Friedrich-Wilhelm Mohr, Holger Schröfel, Neil E Moat, Friedhelm Beyersdorf, G Alexander Patterson, Richard Weisel
No abstract text is available yet for this article.
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633212/transatlantic-editorial-on-transcatheter-aortic-valve-replacement
#14
EDITORIAL
Vinod H Thourani, Michael A Borger, David Holmes, Hersh Maniar, Fausto Pinto, Craig Miller, Josep Rodés-Cabau, Friedrich-Wilhelm Mohr, Holger Schröfel, Neil E Moat, Friedhelm Beyersdorf, G Alexander Patterson, Richard Weisel
No abstract text is available yet for this article.
July 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28631398/transcatheter-aortic-valve-replacement-in-a-patient-with-werner-syndrome
#15
Kenta Masada, Toru Kuratani, Koichi Maeda, Kei Torikai, Yoshiki Sawa
No abstract text is available yet for this article.
June 20, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28630186/loss-of-c-5-sterol-desaturase-activity-results-in-increased-resistance-to-azole-and-echinocandin-antifungals-in-a-clinical-isolate-of-candida-parapsilosis
#16
Jeffrey M Rybak, C Michael Dickens, Josie E Parker, Kelly Caudle, Kayihura Manigaba, Sarah G Whaley, Andrew Nishimoto, Arturo Luna-Tapia, Sujoy Roy, Qing Zhang, Katherine S Barker, Glen E Palmer, Thomas R Sutter, Ramin Homayouni, Nathan P Wiederhold, Steven L Kelly, P David Rogers
Among emerging non-albicans Candida species, C. parapsilosis is of particular concern as a cause of nosocomial bloodstream infections in neonatal and intensive care unit patients. While fluconazole and echinocandins are considered effective treatment of such infections, recent reports of fluconazole and echinocandin resistance in C. parapsilosis indicate a growing problem. The present study describes a novel mechanism of antifungal resistance in this organism affecting the susceptibility of azole and echinocandin antifungals in a clinical isolate obtained from a patient with prosthetic valve endocarditis...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28625442/the-effect-of-dexmedetomidine-on-renal-function-in-patients-undergoing-cardiac-valve-replacement-under-cardiopulmonary-bypass-a-double-blind-randomized-controlled-trial
#17
Mingyu Zhai, Fang Kang, Mingming Han, Xiang Huang, Juan Li
STUDY OBJECTIVE: We attempted to explore the effect of Dex on renal function in patients with cardiac valve replacement under cardiopulmonary bypass (CPB). DESIGN: We designed a prospective, randomized, placebo-controlled, single-center, parallel-arm double-blind trial. SETTING: Operating room. PATIENTS: Seven-two eligible patients were randomly divided into Dex group and placebo group. INTERVENTIONS: Dexmedetomidine (Dex) (0...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28625380/factors-associated-with-non-vitamin-k-antagonist-oral-anticoagulants-for-stroke-prevention-in-patients-with-new-onset-atrial-fibrillation-results-from-the-outcomes-registry-for-better-informed-treatment-of-atrial-fibrillation-ii-orbit-af-ii
#18
Benjamin A Steinberg, Peter Shrader, Laine Thomas, Jack Ansell, Gregg C Fonarow, Bernard J Gersh, Elaine Hylek, Peter R Kowey, Kenneth W Mahaffey, Emily C O'Brien, Daniel E Singer, Eric D Peterson, Jonathan P Piccini
BACKGROUND: Several non-vitamin K antagonist oral anticoagulant (NOAC) alternatives to warfarin are available for stroke prevention in atrial fibrillation (AF). We aimed to describe the factors associated with selection of NOACs versus warfarin in patients with new onset AF. METHODS: The ORBIT-AF II study is a national, US, prospective, observational, cohort study of anticoagulation treatment in patients with AF receiving NOACs or warfarin in the United States from 2013 to 2016...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28625366/feasibility-of-transcatheter-aortic-valve-replacement-in-low-risk-patients-with-symptomatic-severe-aortic-stenosis-rationale-and-design-of-the-low-risk-tavr-lrt-study
#19
Toby Rogers, Rebecca Torguson, Roshni Bastian, Paul Corso, Ron Waksman
BACKGROUND: Safety and effectiveness of transcatheter aortic valve replacement (TAVR) in low-risk patients with symptomatic severe aortic stenosis have not yet been established. HYPOTHESIS: Transcatheter aortic valve replacement is feasible in patients with symptomatic severe aortic stenosis and low risk for surgical aortic valve replacement. DESIGN: The LRT study is the first US Food and Drug Administration-approved Investigational Device Exemption prospective multicenter feasibility trial of TAVR in low-risk patients...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28624117/a-case-of-pacemaker-malfunction-should-i-intervene
#20
Colin Yeo, David H Birnie, Girish M Nair
A 53year old lady was noted to have persistent bradycardia in the recovery unit shortly after a dual chamber permanent pacemaker (PPM) was implanted. The patient was asymptomatic. The pacemaker was implanted for symptomatic intermittent complete heart block. She had surgical closure of an atrial septal defect three decades earlier and a previous tricuspid valve replacement with concomitant biatrial cryomaze procedure for paroxysmal atrial fibrillation.
June 8, 2017: Journal of Electrocardiology
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