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https://www.readbyqxmd.com/read/29772584/survival-after-aortic-valve-replacement-with-bovine-or-porcine-valve-prostheses-a-systematic-review-and-meta-analysis
#1
Natalie Glaser, Veronica Jackson, Anders Franco-Cereceda, Ulrik Sartipy
BACKGROUND:  Bovine and porcine bioprostheses are commonly used for surgical aortic valve replacement. It is unknown if the long-term survival differs between the two valve types.We performed a systematic review and meta-analysis to compare survival in patients who underwent aortic valve replacement and received a bovine or a porcine prosthesis. METHODS:  We performed a systematic search of Medline, Embase, Web of Science, and the Cochrane Library. Cohort studies that compared survival between patients who underwent aortic valve replacement and received either a bovine or a porcine bioprosthesis and that reported overall long-term survival with hazard ratio (HR) and 95% confidence interval (CI) were included...
May 17, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29762933/ross-procedure-following-a-dislodged-transcatheter-aortic-valve-replacement
#2
Samuel R Schnittman, Aaron J Weiss, Robin Varghese, Paul Stelzer
A 36-year-old pregnant woman with a history of rheumatic heart disease and prior aortic valve replacement and mitral valve repair presented to an outside hospital with severe aortic stenosis. The patient had a cardiac arrest upon labor induction and underwent a transcatheter aortic valve replacement (TAVR), which dislodged two days later. Five months later, the patient underwent removal of the dislodged TAVR and a Ross procedure at the authors' institution. The patient was stable upon discharge, with minimal aortic and pulmonary regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29761272/primary-paraesophageal-hernia-repair-with-gore%C3%A2-bio-a%C3%A2-tissue-reinforcement-long-term-outcomes-and-association-of-bmi-and-recurrence
#3
Michael T Olson, Saurabh Singhal, Roshan Panchanathan, Sreeja Biswas Roy, Paul Kang, Taylor Ipsen, Sumeet K Mittal, Jasmine L Huang, Michael A Smith, Ross M Bremner
BACKGROUND: Laparoscopic repair remains the gold-standard treatment for paraesophageal hernia (PEH). We analyzed long-term symptomatic outcomes and surgical reintervention rates after primary PEH repair with onlay synthetic bioabsorbable mesh (W. L. Gore & Associates, Inc., Flagstaff, AZ) and examined body mass index (BMI) as a possible risk factor for poor outcomes and for recurrence. METHODS: We queried a prospectively maintained database to identify patients who underwent laparoscopic primary PEH repair with onlay patch of a bioprosthetic absorbable mesh (Bio-A® Gore®) between 05/28/2009 and 12/31/2013...
May 14, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29759741/outcomes-of-repeat-mitral-valve-replacement-in-patients-with-prior-mitral-surgery-a-benchmark-for-transcatheter-approaches
#4
Julius I Ejiofor, Sameer A Hirji, Fernando Ramirez-Del Val, Anthony V Norman, Siobhan McGurk, Sary F Aranki, Prem S Shekar, Tsuyoshi Kaneko
OBJECTIVES: With the emergence of transcatheter mitral valve-in-valve/ring replacement for deteriorated bioprostheses or failed repair, comparative clinical benchmarks for surgical repeat mitral valve replacement (re-MVR) are needed. We present in-hospital and survival outcomes of a 24-year experience with re-MVR. METHODS: From January 1992 to June 2015, 520 adult patients underwent re-MVR; 273 had undergone prior mitral valve repair (pMVP) and 247 had undergone prior MVR (pMVR)...
April 7, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29753455/effect-of-severe-bioprosthetic-valve-tissue-ingrowth-and-inflow-calcification-on-valve-in-valve-performance
#5
Hoda Hatoum, Jennifer Dollery, Scott M Lilly, Juan A Crestanello, Lakshmi Prasad Dasi
While in vivo studies clearly demonstrate that supra-annular Valve-in-Valve (ViV) implantation provides the highest probability for optimal post-ViV pressure gradients (PG), there is still no physical insight into explaining anomalies where some supra-annular ViV implantations yield high pressure gradients while some sub-annular implantations yield low pressure gradients. The aim of this study is to explain how severe tissue ingrowth and calcification (TIC) in a surgical aortic valve (SAV) can be one physical mechanism leading to anomalous ViV performance characteristic...
May 4, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29751954/novel-echocardiographic-parameters-in-patients-with-aortic-stenosis-and-preserved-left-ventricular-systolic-function-undergoing-surgical-aortic-valve-replacement
#6
Chetan P Huded, Kenya Kusunose, Fatima Shahid, Andrew L Goodman, Alaa Alashi, Richard A Grimm, A Marc Gillinov, Douglas R Johnston, L Leonardo Rodriguez, Zoran B Popovic, Kimi Sato, Lars G Svensson, Brian P Griffin, Milind Y Desai
We sought to study the incremental prognostic impact of baseline valvuloarterial impedance (Zva) and left ventricular global longitudinal strain (LV-GLS) in patients with severe aortic stenosis and preserved left ventricular ejection fraction (LVEF) treated with surgical aortic valve replacement (AVR). We included 961 consecutive patients (68 ± 13 years; 63% men) with severe aortic stenosis (indexed aortic valve area <0.6 cm2 ) and LVEF >50% who underwent surgical AVR at our institution between January 2007 and December 2008...
April 12, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29750928/surgical-management-of-tricuspid-valve-infective-endocarditis-a-systematic-review-and-meta-analysis
#7
Bobby Yanagawa, Malak Elbatarny, Subodh Verma, Samantha Hill, Amine Mazine, John D Puskas, Jan O Friedrich
BACKGROUND: This meta-analysis compares the early and late outcomes of valve repair versus replacement, the primary surgical strategies for tricuspid valve infective endocarditis (IE). METHODS: We searched MEDLINE and EMBASE databases until 2016 for studies comparing tricuspid valve repair and replacement. RESULTS: The main outcomes were mortality, recurrent IE and need for reoperation. There were 12 unmatched retrospective observational studies with 1165 patients (median follow up 3...
May 8, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29743999/transcatheter-mitral-valve-replacement-for-native-and-failed-bioprosthetic-mitral-valves
#8
REVIEW
Kunal Sarkar, Michael J Reardon, Stephen H Little, Colin M Barker, Neal S Kleiman
Transcatheter mitral valve replacement (TMVR) is a novel approach for treatment of severe mitral regurgitation. A number of TMVR devices are currently undergoing feasibility trials using both transseptal and transapical routes for device delivery. Overall experience worldwide is limited to fewer than 200 cases. At present, the 30-day mortality exceeds 30% and is attributable to both patient- and device-related factors. TMVR has been successfully used to treat patients with degenerative mitral stenosis (DMS) as well as failed mitral bioprosthesis and mitral repair using transcatheter mitral valve-in-valve (TMViV)/valve-in-ring (ViR) repair...
July 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29743998/transcatheter-aortic-valve-in-valve-procedure-in-patients-with-bioprosthetic-structural-valve-deterioration
#9
REVIEW
Ross M Reul, Mahesh K Ramchandani, Michael J Reardon
Surgical aortic valve replacement is the gold standard procedure to treat patients with severe, symptomatic aortic valve stenosis or insufficiency. Bioprosthetic valves are used for surgical aortic valve replacement with a much greater prevalence than mechanical valves. However, bioprosthetic valves may fail over time because of structural valve deterioration; this often requires intervention due to severe bioprosthetic valve stenosis or regurgitation or a combination of both. In select patients, transcatheter aortic valve replacement is an alternative to surgical aortic valve replacement...
July 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29741488/long-term-durability-and-hemodynamic-performance-of-a-self-expanding-transcatheter-heart-valve-beyond-5-years-after-implantation-a-prospective-observational-study-applying-the-standardized-definitions-of-structural-deterioration-and-valve-failure
#10
Erik W Holy, Julia Kebernik, Mohammad Abdelghani, Simon F Stämpfli, Jens Hellermann, Abdelhakim Allali, Mohamed El-Mawardy, Susanne Sachse, Thomas F Lüscher, Felix C Tanner, Gert Richardt, Mohamed Abdel-Wahab
AIMS: Long-term results of transcatheter aortic valve implantation (TAVI), in particular the incidence of bioprosthetic valve failure (BVF), are uncertain. METHODS AND RESULTS: The study prospectively included all 152 patients who had undergone TAVI with the self-expanding CoreValve™ up to December 2011 at the Heart Center, Bad Segeberg, Germany. Late BVF (>30 days) was defined as either: 1) Severe structural valve deterioration (trans-prosthetic mean pressure gradient ≥40 mmHg and/or ≥20 mmHg rise from baseline OR severe intra-prosthetic aortic regurgitation), OR 2) Bioprosthetic valve dysfunction leading to death or re-intervention...
May 8, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29735584/bioprosthetic-aortic-valve-durability-in-the-era-of-transcatheter-aortic-valve-implantation
#11
REVIEW
Erwan Salaun, Marie-Annick Clavel, Josep Rodés-Cabau, Philippe Pibarot
The main limitation of bioprosthetic valves is their limited durability, which exposes the patient to the risk of aortic valve reintervention. Transcatheter aortic valve implantation (TAVI) is considered a reasonable alternative to surgical aortic valve replacement (SAVR) in patients with intermediate or high surgical risk. TAVI is now rapidly expanding towards the lower risk populations. Although the results of midterm durability of the transcatheter bioprostheses are encouraging, their long-term durability remains largely unknown...
May 7, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29735263/an-anisotropic-constitutive-model-for-immersogeometric-fluid-structure-interaction-analysis-of-bioprosthetic-heart-valves
#12
Michael C H Wu, Rana Zakerzadeh, David Kamensky, Josef Kiendl, Michael S Sacks, Ming-Chen Hsu
This paper considers an anisotropic hyperelastic soft tissue model, originally proposed for native valve tissue and referred to herein as the Lee-Sacks model, in an isogeometric thin shell analysis framework that can be readily combined with immersogeometric fluid-structure interaction (FSI) analysis for high-fidelity simulations of bioprosthetic heart valves (BHVs) interacting with blood flow. We find that the Lee-Sacks model is well-suited to reproduce the anisotropic stress-strain behavior of the cross-linked bovine pericardial tissues that are commonly used in BHVs...
April 12, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29728437/cardiac-ct-provides-uniquely-accurate-and-comprehensive-assessment-of-bioprosthetic-aortic-valve-stenosis
#13
Jamal N Khan, Brian Devlin, Satya Verma, Balazs Ruzsics
No abstract text is available yet for this article.
May 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29725546/emergency-valve-in-valve-transcatheter-aortic-valve-implantation-for-the-treatment-of-acute-stentless-bioprosthetic-aortic-insufficiency-and-cardiogenic-shock
#14
Ivan D Hanson, Pratik K Dalal, Brian M Renard, George S Hanzel, Alessandro Vivacqua
Bioprosthetic aortic valve degeneration may present as acute, severe aortic regurgitation and cardiogenic shock. Such patients may be unsuitable for emergency valve replacement surgery due to excessive risk of operative mortality but could be treatable with transfemoral valve-in-valve transcatheter aortic valve implantation (TAVI). There is a paucity of data regarding the feasibility of valve-in-valve TAVI in patients presenting with cardiogenic shock due to acute aortic insufficiency from stentless bioprosthetic valve degeneration...
2018: Case Reports in Cardiology
https://www.readbyqxmd.com/read/29707507/bioprosthetics-and-repair-of-complex-aerodigestive-defects
#15
Brooks Udelsman, Douglas J Mathisen, Harald C Ott
Aerodigestive defects involving the trachea, bronchi and esophagus are a result of prolonged intubation, operative complications, congenital defects, trauma, radiation and neoplastic disease. The vast majority of these defects may be repaired primarily. Rarely, due the size of the defect, underlying complexity, or unfavorable patient characteristics, primary repair is not possible. One alternative to primary repair is bioprosthetic repair. Materials such as acellular dermal matrix and aortic homograft have been used in a variety of applications, including closure of tracheal, bronchial and esophageal defects...
March 2018: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29707495/a-reassessment-of-tracheal-substitutes-a-systematic-review
#16
REVIEW
Brooks Udelsman, Douglas J Mathisen, Harald C Ott
Background: Tracheal substitutes remain an active area of research. For rare patients with large or complex defects that cannot be repaired primarily, replacement of the airway may represent the only treatment option. The present systematic review aims to assess the clinical successes and setbacks of current methods of airway replacement. Methods: Systematic review using Medline and PubMed from 01 January 2000 to 01 October 2017 focusing on clinical translation of circumferential or near circumferential (>270°) tracheal substitutes...
March 2018: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29689478/aorto-left-atrial-fistula-diagnosed-with-computed-tomographic-angiography-a-case-report
#17
Nicholas Voutsinas, Aalap Chokshi, Michael Chung, Matthew Cham, Gina LaRocca, Javier Sanz, Adam Jacobi
Aorto-atrial fistulas are a rare diagnosis with limited reports in the clinical literature. These findings are often characterized by echocardiography alone; however, the advent and increased availability and use of CT angiography to diagnose cardiac abnormalities provides improved anatomic visibility of potential defects. We are reporting a case of a 76-year-old male with decompensated heart failure secondary to a fistula between the aorta and left atrium after remote history of bioprosthetic aortic valve replacement...
April 14, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29678896/outcomes-for-patients-with-rheumatic-heart-disease-after-cardiac-surgery-followed-at-rural-district-hospitals-in-rwanda
#18
Emmanuel K Rusingiza, Ziad El-Khatib, Bethany Hedt-Gauthier, Gedeon Ngoga, Symaque Dusabeyezu, Neo Tapela, Cadet Mutumbira, Francis Mutabazi, Emmanuel Harelimana, Joseph Mucumbitsi, Gene F Kwan, Gene Bukhman
BACKGROUND: In sub-Saharan Africa, continued clinical follow-up, after cardiac surgery, is only available at urban referral centres. We implemented a decentralised, integrated care model to provide longitudinal care for patients with advanced rheumatic heart disease (RHD) at district hospitals in rural Rwanda before and after heart surgery. METHODS: We collected data from charts at non-communicable disease (NCD) clinics at three rural district hospitals in Rwanda to describe the outcomes of 54 patients with RHD who received cardiac valve surgery during 2007-2015...
April 20, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29671289/transseptal-transcatheter-mitral-valve-in-valve-replacement-for-a-failed-bioprosthetic-mitral-valve
#19
Do Yoon Kang, Jung Min Ahn, Cheol Hyun Lee, Se Hun Kang, Ran Heo, Duk Woo Park, Jong Min Song, Seung Jung Park
No abstract text is available yet for this article.
March 7, 2018: Korean Circulation Journal
https://www.readbyqxmd.com/read/29668501/transcaval-valve-in-valve-in-valve-aortic-valve-replacement-for-bioprosthetic-valve-degeneration
#20
A Claire Watkins, Chandan M Devireddy, Talal Al-Atassi, Amy E Simone, Jessica Forcillo, Vinod H Thourani
A 74-year-old man presented with progressive dyspnea on exertion. History included peripheral arterial disease and coronary artery bypass grafting with aortic valve replacement 12 years ago. Subsequently, the surgical valve developed severe stenosis and moderate insufficiency. He underwent a transapical valve-in-valve transcatheter aortic valve replacement 5 years before presentation. This second valve developed a mean gradient of 66 mm Hg with mild insufficiency. The patient was treated with a third aortic valve using an alternative transcaval approach, significantly alleviating his symptoms...
April 17, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
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