keyword
MENU ▼
Read by QxMD icon Read
search

bioprosthetic heart valve

keyword
https://www.readbyqxmd.com/read/28521923/safety-and-efficacy-of-transcatheter-aortic-valve-replacement-in-the-treatment-of-pure-aortic-regurgitation-in-native-valves-and-failing-surgical-bioprostheses-results-from-an-international-registry-study
#1
Fadi J Sawaya, Marcus-André Deutsch, Moritz Seiffert, Sung-Han Yoon, Pablo Codner, Upul Wickramarachchi, Azeem Latib, A Sonia Petronio, Josep Rodés-Cabau, Maurizio Taramasso, Marco Spaziano, Johan Bosmans, Luigi Biasco, Darren Mylotte, Mikko Savontaus, Peter Gheeraert, Jason Chan, Troels H Jørgensen, Horst Sievert, Marco Mocetti, Thierry Lefèvre, Francesco Maisano, Antonio Mangieri, David Hildick-Smith, Ran Kornowski, Raj Makkar, Sabine Bleiziffer, Lars Søndergaard, Ole De Backer
OBJECTIVES: The aim of this study was to evaluate the use of transcatheter heart valves (THV) for the treatment of noncalcific pure native aortic valve regurgitation (NAVR) and failing bioprosthetic surgical heart valves (SHVs) with pure severe aortic regurgitation (AR). BACKGROUND: Limited data are available about the "off-label" use of transcatheter aortic valve replacement (TAVR) to treat pure severe AR. METHODS: The study population consisted of patients with pure severe AR treated by TAVR at 18 different centers...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28488003/daily-transient-discontinuation-of-extracorporeal-lvad-to-prevent-thromboembolism-of-mechanical-aortic-valve-prosthesis
#2
Takamichi Inoue, Tadashi Kitamura, Shinzo Torii, Mitsuhiro Hirata, Toshiaki Mishima, Koichi Sughimoto, Hirotoki Ohkubo, Kensuke Kobayashi, Mamika Motokawa, Miyuki Shibata, Takuya Matsushiro, Yuta Tsuchida, Yurie Miyata, Minoru Ono, Kagami Miyaji
Patients with mechanical aortic valves are generally contraindicated for left ventricular assist device (LVAD) insertion because the prosthetic valve often becomes fixed in closed position. A 41-year-old woman with mechanical aortic valve prosthesis experienced sudden chest pain and developed cardiogenic shock. A paracorporeal pulsatile LVAD and a monopivot centrifugal pump as a right VAD (RVAD) were implanted. The mechanical aortic valve was intentionally left in place. Soon after the operation, LVAD support was discontinued daily for few seconds to allow the mechanical aortic valve to open and to avoid thrombus formation...
May 9, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28483776/calcification-and-oxidative-modifications-are-associated-with-progressive-bioprosthetic-heart-valve-dysfunction
#3
Suengwon Lee, Robert J Levy, Abigail J Christian, Stanley L Hazen, Nathan E Frick, Eric K Lai, Juan B Grau, Joseph E Bavaria, Giovanni Ferrari
BACKGROUND: Bioprosthetic heart valves (BHVs), fabricated from glutaraldehyde-pretreated bovine pericardium or porcine aortic valves, are widely used for the surgical or interventional treatment of heart valve disease. Reoperation becomes increasingly necessary over time because of BHV dysfunction. METHODS AND RESULTS: Forty-seven explanted BHV aortic valve replacements were retrieved at reoperation for clinically severe BHV dysfunction over the period 2010-2016...
May 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28461800/bioprosthetic-aortic-valve-replacement-in-a-donor-heart-before-orthotopic-heart-transplantation
#4
Manish Patel, Khashayar K Vahdat, Sriram Nathan, Marija Petrovic, Pranav Loyalka, Biswajit Kar, Igor D Gregoric
Current criteria for donor hearts limit the number of hearts available for transplantation, despite an increasing number of recipients on waiting lists. We report the case of a patient with ischemic cardiomyopathy and refractory ventricular tachycardia who underwent successful orthotopic heart transplantation and concurrent aortic valve replacement with a donor heart that had displayed moderate aortic valve regurgitation. The patient was a 71-year-old man with a history of advanced heart failure, 5-vessel coronary artery bypass grafting, and paroxysmal ventricular tachycardia...
April 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28457092/transcatheter-tricuspid-valve-in-valve-implantation-in-patients-with-tricuspid-bioprosthetic-valve-degeneration-at-high-surgical-risk-a-multicenter-case-series
#5
Uri Landes, Arthur Kerner, Amit Segev, Haim Danenberg, Yaron Shapira, Ariel Finkelstein, Ran Kornowski
BACKGROUND: Transcatheter tricuspid valve-in-valve implantation (TVIV) is an attractive yet under-explored alternative to redo valve surgery. OBJECTIVES: To report the multicenter TVIV experience in Israel. METHODS: We approached multiple centers and collected data regarding seven TVIV cases. RESULTS: The study group comprised seven participants: five females and two males, with a mean age of 63 ± 12 years and EuroSCORE-II 13...
March 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28449781/bioprosthetic-valve-thrombosis
#6
REVIEW
Rishi Puri, Vincent Auffret, Josep Rodés-Cabau
Bioprosthetic valve (BPV) thrombosis is considered a relatively rare clinical entity. Yet a more recent analysis involving a more systematic echocardiographic follow-up, the advent of transcatheter heart valve (THV) technologies coupled with the highly sensitive nature of 4-dimensional computed tomographic imaging for detecting subclinical thrombi upon both surgically implanted and THVs, has generated enormous interest in this field, casting new light on both its true incidence and clinical relevance. Debate continues among clinicians as to both the clinical relevance of subclinical BPV thrombosis and the value of empirical oral anticoagulation following BPV implantation...
May 2, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28444168/mechanical-versus-bioprosthetic-aortic-valve-replacement
#7
Stuart J Head, Mevlüt Çelik, A Pieter Kappetein
Mechanical valves used for aortic valve replacement (AVR) continue to be associated with bleeding risks because of anticoagulation therapy, while bioprosthetic valves are at risk of structural valve deterioration requiring reoperation. This risk/benefit ratio of mechanical and bioprosthetic valves has led American and European guidelines on valvular heart disease to be consistent in recommending the use of mechanical prostheses in patients younger than 60 years of age. Despite these recommendations, the use of bioprosthetic valves has significantly increased over the last decades in all age groups...
April 20, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28442174/microstructural-alterations-owing-to-handling-of-bovine-pericardium-to-manufacture-bioprosthetic-heart-valves-a-potential-risk-for-cusp-dehiscence
#8
J Mao, Y Wang, E Philippe, T Cianciulli, I Vesely, D How, J-M Bourget, L Germain, Z Zhang, R Guidoin
INTRODUCTION: Cross-linking and anti-calcification of prosthetic heart valves have been continuously improved to prevent degeneration and calcification. However, non-calcific structural deteriorations such as cuspal dehiscences along the stent still require further analysis. MATERIAL AND METHOD: Based upon the previous analysis of an explanted valve after 7 years, a fresh commercial aortic valve was embedded in poly(methyl methacrylate) (PMMA) and cut into slices to ensure the detailed observation of the assembly and material structures...
April 22, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28385406/clinical-bioprosthetic-heart-valve-thrombosis-after-transcatheter-aortic%C3%A2-valve-replacement-incidence-characteristics-and-treatment-outcomes
#9
John Jose, Dmitriy S Sulimov, Mohamed El-Mawardy, Takao Sato, Abdelhakim Allali, Erik W Holy, Björn Becker, Martin Landt, Julia Kebernik, Bettina Schwarz, Gert Richardt, Mohamed Abdel-Wahab
OBJECTIVES: The aim of this study was to determine the incidence, characteristics, and treatment outcomes of patients diagnosed with clinical transcatheter heart valve thrombosis. BACKGROUND: Limited data exists on clinical or manifest transcatheter heart valve thrombosis. Prior studies have focused on subclinical thrombosis. METHODS: A retrospective analysis was conducted of prospectively collected data from a single-center registry that included 642 consecutive patients who underwent transcatheter aortic valve replacement between 2007 and 2015 (305 patients had self-expanding valves; balloon-expandable, n = 281; mechanically expanding, n = 56)...
April 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28359556/valve-replacement-surgery-in-severe-chronic-kidney-disease
#10
Min Ho Ju, Sung-Ho Jung, Suk Jung Choo, Cheol Hyun Chung, Jae Won Lee, Joon Bum Kim
BACKGROUND: The impact of prosthetic choices in patients with severe chronic kidney disease (CKD) on long-term outcomes has not been well established. METHODS: The study involved 152 adult patients (61.6±14.1yrs.; 64 females) undergoing heart valve surgery who had stage 4 (n=87) or 5 CKD (end-stage; n=65) based on Kidney Disease Outcomes Quality Initiative Guidelines. To reduce the impact of selection bias between mechanical (n=92) and bio-prostheses groups (n=60), propensity score analyses were conducted...
March 22, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28353137/high-risk-trans-catheter-aortic-valve-replacement-in-a-failed-freestyle-valve-with-low-coronary-height-a-case-report
#11
Ashkan Karimi, Negiin Pourafshar, George Dibu, Thomas M Beaver, Anthony A Bavry
A 55-year-old male with a history of two prior cardiac surgeries presented with decompensated heart failure due to severe bioprosthetic aortic valve insufficiency. A third operation was viewed prohibitively high risk and valve-in-valve trans-catheter aortic valve replacement was considered. There were however several high-risk features and technically challenging aspects including low coronary ostia height, poor visualization of the aortic sinuses, and difficulty in identification of the coplanar view due to severe aortic insufficiency, and a highly mobile aortic valve mass...
March 28, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28347474/platelet-activation-of-mechanical-versus-bioprosthetic-heart-valves-during-systole
#12
Mohammadali Hedayat, Hafez Asgharzadeh, Iman Borazjani
Thrombus formation is a major concern for recipients of mechanical heart valves (MHVs), which requires them to take anticoagulant drugs for the rest of their lives. Bioprosthetic heart valves (BHVs) do not require life-long anticoagulant therapy but deteriorate after 10-15years. The thrombus formation is initiated by the platelet activation which is thought to be mainly generated in MHVs by the flow through the hinge and the leakage flow during the diastole. However, our results show that the activation in the bulk flow during the systole phase might play an essential role as well...
March 11, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28347328/a-rare-case-report-of-early-bioprosthetic-valve-thrombosis-presenting-with-acute-heart-failure-salvaged-by-thrombectomy
#13
Jingya Fan, Peng Teng, Yu Zou, Liang Ma
BACKGROUND: Bioprosthetic valve thrombosis is previously considered as an extremely rare complication which hasn't been systemically recognized and understood. CASE PRESENTATION: Herein, we present an unusual case of a patient manifesting with acute heart failure, secondary to thrombus formation in a porcine aortic bioprosthesis which was implanted 11 months prior to hospitalization. Due to the patient's poor heart function and intraoperative findings, thrombectomy was performed...
March 27, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28343443/lacosamide-induced-recurrent-ventricular-tachycardia-in-the-acute-care-setting
#14
Theodore J Berei, Matthew P Lillyblad, Adrian K Almquist
Lacosamide is a new-generation antiepileptic drug (AED) most commonly used adjunctively in the setting of partial-onset seizures refractory to traditional therapy. We describe the first case report, to our knowledge, of a patient who developed recurrent, sustained ventricular tachycardia with multiple administrations of lacosamide in an acute setting. A 70-year-old woman with a history significant for valvular heart disease was admitted to the inpatient cardiology service for worsening heart failure. On hospital day 7, she received a bioprosthetic aortic valve...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28335795/gemella-morbillorum-endocarditis-of-pulmonary-valve-a-case-report
#15
Dan Li, Zhicheng Zhu, Xiaomei Zheng, Weitie Wang, Rihao Xu, Kexiang Liu
BACKGROUND: Pulmonary valve infective endocarditis is a rare finding for endocarditis. Infective endocarditis caused by Gemella morbillorum remains a scanty occurrence. CASE PRESENTATION: This is a case reported of a 28-year-old Chinese male with endocarditis caused by pulmonary valve infection of Gemella morbillorum associated with congenital ventricular septal defect, atrial septal defect and double-chambered right ventricle. The patient presented with fever, shortness of breath, progressively worsening exertional fatigue, dyspnea and weight loss for 3 months...
March 23, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28330691/bioprosthetic-surgical-and-transcatheter-heart-valve-thrombosis
#16
Jeroen J Bax, Gregg W Stone
No abstract text is available yet for this article.
March 17, 2017: Lancet
https://www.readbyqxmd.com/read/28330690/subclinical-leaflet-thrombosis-in-surgical-and-transcatheter-bioprosthetic-aortic-valves-an-observational-study
#17
Tarun Chakravarty, Lars Søndergaard, John Friedman, Ole De Backer, Daniel Berman, Klaus F Kofoed, Hasan Jilaihawi, Takahiro Shiota, Yigal Abramowitz, Troels H Jørgensen, Tanya Rami, Sharjeel Israr, Gregory Fontana, Martina de Knegt, Andreas Fuchs, Patrick Lyden, Alfredo Trento, Deepak L Bhatt, Martin B Leon, Raj R Makkar
BACKGROUND: Subclinical leaflet thrombosis of bioprosthetic aortic valves after transcatheter valve replacement (TAVR) and surgical aortic valve replacement (SAVR) has been found with CT imaging. The objective of this study was to report the prevalence of subclinical leaflet thrombosis in surgical and transcatheter aortic valves and the effect of novel oral anticoagulants (NOACs) on the subclinical leaflet thrombosis and subsequent valve haemodynamics and clinical outcomes on the basis of two registries of patients who had CT imaging done after TAVR or SAVR...
March 19, 2017: Lancet
https://www.readbyqxmd.com/read/28328570/concomitant-valve-in-valve-transcatheter-aortic-valve-replacement-and-left-ventricular-assist-device-implantation
#18
Takashi Murashita, David L Joyce, Alberto Pochettino, John M Stulak, Lyle D Joyce
Redo aortic valve replacement (AVR) performed simultaneously with left ventricular assist device (LVAD) implantation carries potential for increased mortality rates. Although transcatheter AVR has been used for patients with previous LVAD placement, no literature reports concomitant valve-in-valve transcatheter AVR and LVAD implantation. Our patient had severe aortic prosthetic valve deterioration and advanced heart failure. Given the risks associated with reoperative aortic valve surgery, we chose transcatheter AVR at the time of LVAD implantation...
March 22, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28302715/late-thrombosis-of-a-mitral-bioprosthetic-valve-with-associated-massive-left-atrial-thrombus
#19
Preetham Muskula, Rigoberto Ramirez, A Michael Borkon, Michael L Main
An 84-year-old man presented 5 years following bioprosthetic mitral valve replacement with three months of worsening dyspnea on exertion. A new mitral stenosis murmur was noted on physical examination, and an electrocardiogram revealed newly recognized atrial fibrillation. Severe mitral stenosis (mean gradient = 13 mmHg) was confirmed by transthoracic echocardiography. Transesophageal echocardiography revealed markedly thickened mitral bioprosthetic leaflets with limited mobility, and a massive left atrial thrombus (> 4 cm in diameter) (see Figures 1A-D, and video files 1-4)...
March 16, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28267085/hemolytic-anemia-due-to-right-ventricular-to-pulmonary-artery-conduit-stenosis
#20
Sudha Rao, Julie A Creaden, Shunyou Gong, Cynthia Rigsby, John M Costello
Hemolytic anemia is a well-recognized complication in patients with left-sided mechanical heart valves. It is rare to see hemolysis with a bioprosthetic valve in the right ventricular outflow tract. We report a 4-year-old-girl with history of truncus arteriosus status-post repair who developed hemolytic anemia as a result of a calcified and obstructed bioprosthetic right ventricular to pulmonary artery-valved conduit. The hemolysis was alleviated by replacing the obstructed conduit with a larger valved conduit...
March 6, 2017: Journal of Pediatric Hematology/oncology
keyword
keyword
71462
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"