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patient-prosthesis mismatch

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https://www.readbyqxmd.com/read/29149268/mitral-valve-replacement-with-the-novel-tribio-and-an-established-stented-bioprosthesis-in-a-sheep-model
#1
Sina Stock, Hans-Hinrich Sievers, Doreen Richardt, Michael Scharfschwerdt
OBJECTIVES: Heart valve replacement with a bioprosthesis is one of the most frequently performed procedures in cardiac surgery and represents a highly effective therapy to relieve diseased heart valves. Nevertheless, as postoperatively elevated transvalvular gradients and prosthesis-patient mismatch are reported as shortcomings of the procedure or of the currently used devices, there is a need for novel bioprostheses with improved haemodynamics. This study presents preclinical haemodynamic results after mitral valve replacement with the novel TRIBIO bioprosthesis (TRIBIO) compared with an established bioprosthesis in a sheep model...
November 15, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29132703/rapid-deployment-aortic-valve-replacement-excellent-results-and-increased-effective-orifice-areas
#2
Parwis B Rahmanian, Süreyya Kaya, Kaveh Eghbalzadeh, Hruy Menghesha, Navid Madershahian, Thorsten Wahlers
BACKGROUND: The aim of this study was to evaluate the effects of rapid deployment aortic valve replacement (RDAVR) on surgical outcome and hemodynamics compared with standard aortic valve replacement (AVR). METHODS: One hundred sixty-three RDAVR patients (isolated, n = 67; combined with coronary artery bypass graft surgery [CABG], n = 96) were compared with a propensity matched control group (n = 163). Primary endpoints included association between valve type and procedure times, prosthesis size, transvalvular gradient, and indexed effective orifice area...
November 10, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29118326/incidence-predictors-and-outcome-of-prosthesis-patient-mismatch-after-transcatheter-aortic-valve-replacement-a-systematic-review-and-meta-analysis
#3
Yan-Biao Liao, Yi-Jian Li, Li Jun-Li, Zhen-Gang Zhao, Xin Wei, Jiay-Yu Tsauo, Tian-Yuan Xiong, Yuan-Ning Xu, Yuan Feng, Mao Chen
The aim of this study was to investigate the incidence, predictors and outcome of prosthesis-patient mismatch (PPM) following transcatheter aortic valve replacement (TAVR). A total of 30 articles incorporating 4,691 patients were identified. The pooled incidences of overall, moderate and severe PPM following TAVR were 33.0%, 25.0% and 11.0% respectively. Medtronic CoreValve (MCV) had lower incidence of overall (32% vs: 40%, P < 0.0001) and moderate (23% vs 32%, P < 0.0001) than Edwards Sapien (ESV)...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29100646/an-unexpected-risk-factor-for-early-structural-deterioration-of-biological-aortic-valve-prostheses
#4
Carlo Bassano, Valentina Gislao, Emanuele Bovio, Sonia Melino, Ilaria Tropea, Guglielmo Saitto, Marta Pugliese, Dionisio F Colella, Antonio Scafuri, Giovanni Ruvolo
BACKGROUND: An alarming rate of early failure has been recently reported for the LivaNova (previously Sorin) Mitroflow (LivaNova, London, UK) bioprosthesis. Here, we aimed at verifying if this possible underperformance is confirmed in a large, single-center experience and identifying the risk factors associated with early deterioration. METHODS: In all, 459 Mitroflow valves have been implanted from July 2009 to December 2013 (patients' mean age 73 years; 204 women)...
November 1, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29075419/bimaxillary-simultaneous-immediate-loading-of-full-arch-restorations-a-case-series
#5
REVIEW
Iñaki Cercadillo-Ibarguren, Alba Sánchez-Torres, Rui Figueiredo, Eduard Valmaseda-Castellón
AIM: To describe a bimaxillary simultaneous immediate loading protocol with full-arch implant-supported fixed prostheses. MATERIAL AND METHODS: A prospective case series of 8 patients who required full-arch rehabilitation was conducted. The main inclusion criteria were patients with teeth that required extraction. At least 1 molar per arch was temporarily employed to stabilize the surgical template and the provisional prosthesis during intraoral relining. RESULTS: Two upper implants failed in 1 patient...
September 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29071795/hemodynamic-assessment-of-perceval-sutureless-bioprosthesis-by-dobutamine-stress-echocardiography
#6
Antonino S Rubino, Fausto Biancari, Vincenzo Caruso, Vincenzo Lavanco, Fiorella Privitera, Ivana Rinaldi, Maria Sanfilippo, Giovanni Millan, Lucia V D'Urso, Sergio Castorina, Carmelo Mignosa
OBJECTIVES: The aim of this study was to evaluate the hemodynamic performance of a sutureless bioprosthesis under high workload at mid-term follow-up. METHODS: Thirty-two patients who underwent isolated aortic valve replacement with a Perceval sutureless bioprosthesis with a minimum follow-up of 1 year were enrolled in this study. S size prosthesis was deployed in 10 patients (31.3%), M size in 9 (28.1%), L size in 8 (25%) and XL size in 5 (15.6%). Effective orifice area (EOA), EOA index (EOAi), and transvalvular gradients were assessed at rest and during dobutamine stress echocardiography (DSE) a median of 19...
October 26, 2017: Echocardiography
https://www.readbyqxmd.com/read/29031428/aortic-valve-replacement-in-small-patients
#7
Y Hisata, S Yokose, S Hazama, I Matsumaru, K Eishi
OBJECTIVES: Asians are smaller than Europeans and North Americans, but aortic valve replacement (AVR) in small patients has not been examined. We aimed to compare short- and mid-term outcomes of AVR between small and non-small patients. METHODS: We retrospectively divided 173 patients who underwent AVR into small (S, n = 95) and non-small (NS, n = 78) groups according to body surface area (≤1.6 in men, ≤1.5 in women) and analyzed differences in baseline characteristics, procedural and post-procedural variables, and survival...
October 11, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/29029105/comparative-performance-of-transcatheter-aortic-valve-in-valve-implantation-versus-conventional-surgical-redo-aortic-valve-replacement-in-patients-with-degenerated-aortic-valve-bioprostheses-systematic-review-and-meta-analysis
#8
Miroslaw Gozdek, Giuseppe Maria Raffa, Piotr Suwalski, Michalina Kolodziejczak, Lech Anisimowicz, Jacek Kubica, Eliano Pio Navarese, Mariusz Kowalewski
The objective of this report was to directly compare, by means of a systematic review and meta-analysis, redo surgical aortic valve replacement (re-sAVR) with valve-in-valve transcatheter aortic valve implantation (ViV TAVI) for patients with failed degenerated aortic bioprostheses. Multiple databases were screened for all available reports comparing ViV TAVI with re-sAVR in patients with failing degenerated aortic bioprostheses. The primary outcome was all-cause mortality determined from the longest available survival data...
September 8, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29017586/impact-of-prosthesis-patient-mismatch-after-mitral-valve-replacement-in-rheumatic-population-does-mitral-position-prosthesis-patient-mismatch-really-exist
#9
Seung Hyun Lee, Byung Chul Chang, Young-Nam Youn, Hyun Chel Joo, Kyung-Jong Yoo, Sak Lee
BACKGROUND: Prosthesis-patient mismatch (PPM) is characterised by the effects of inadequate prosthesis size relative to body surface area (BSA).The purpose of this study was to determine the impact of PPM on late clinical outcomes after mitral valve replacement (MVR) in rheumatic population. METHODS: From 2000 to 2013, a total of 445 patients (mean age 54.2 ± 11.7 years) underwent isolated MVR (±tricuspid annuloplasty) for rheumatic disease were investigated...
October 10, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28964416/the-prevalence-of-patient-prosthesis-mismatch-can-be-reduced-using-the-trifecta-aortic-prosthesis
#10
Daniel Hernandez-Vaquero, Rocio Diaz, Isaac Pascual, Jose Rozado, Jesus M De la Hera, Victor Leon, Pablo Avanzas, Maria Martín, Daniel García-Iglesias, David Calvo, Jacobo Silva, César Moris
BACKGROUND: Some important studies have shown that patient-prosthesis mismatch is a frequent occurrence after surgical aortic valve replacement that impairs survival. The Trifecta valve (St. Jude Medical Inc, St. Paul, MN) has special architecture designed to achieve the best hemodynamic profile. The aim of this study was to determine the prevalence of mismatch when using this prosthesis. METHODS: This study included 1,302 patients at 3 months postoperatively, 339 patients with a Trifecta prosthesis and 963 patients (the control group) with a Mitroflow aortic valve (Sorin Group Inc, Mitroflow Division, Vancouver, Canada)...
September 27, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28951395/short-term-outcome-and-hemodynamic-performance-of-next-generation-self-expanding-versus-balloon-expandable-transcatheter-aortic-valves-in-patients-with-small-aortic-annulus-a-multicenter-propensity-matched-comparison
#11
Victor Mauri, Won K Kim, Mohammad Abumayyaleh, Thomas Walther, Helge Moellmann, Ulrich Schaefer, Lenard Conradi, Christian Hengstenberg, Michael Hilker, Thorsten Wahlers, Stephan Baldus, Volker Rudolph, Navid Madershahian, Tanja K Rudolph
BACKGROUND: Surgical aortic valve replacement in patients with small annular dimensions is challenging because they are at increased risk for prosthesis-patient mismatch and impaired outcomes. Transcatheter aortic valve replacement might be a good alternative; however, comparative data on different transcatheter heart valves are missing. METHODS AND RESULTS: This multicenter, propensity score-matched study compared hemodynamics and early clinical outcomes in 246 patients with an aortic annulus area <400 mm(2) undergoing transcatheter aortic valve replacement with either a self-expanding transcatheter heart valve (Symetis ACURATE neo, n=129) or a balloon-expandable transcatheter heart valve (Edwards SAPIEN 3, n=117)...
October 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28923785/transcatheter-mitral-valve-replacement-of-navigate-bioprosthesis-in-a-preclinical-model
#12
Haytham Elgharably, Jose L Navia, Cristian Baeza, Gabriel Maluenda, Samir Kapadia, Jerzy Sadowski, Krzysztof Bartuś, Cesare Beghi, Kalathi Thyagarajan, Ryan Bertwell, Rodolfo C Quijano
AIMS: To test the feasibility of trans-catheter mitral valve implantation of the NaviGate device in acute and chronic preclinical models. METHODS AND RESULTS: We evaluated the NaviGate valved stent implantation in the mitral position in an acute swine model (n=24, ≤ 5 days) through three different approaches: trans-atrial, trans-apical, and trans-septal, and in a chronic swine model (n=12, >10 days) through a trans-atrial approach. The NaviGate implantation procedures were successful in 83% of the acute model studies (n=20) and 83% of the chronic model studies (n=10)...
September 19, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28880467/patient-prosthetic-mismatch-following-aortic-valve-replacement-it-may-not-all-be-due-to-the-prosthesis
#13
Harold L Lazar
No abstract text is available yet for this article.
September 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28799113/angles-between-the-aortic-root-and-the-left-ventricle-assessed-by-mdct-are-associated-with-the-risk-of-aortic-regurgitation-after-transcatheter-aortic-valve-replacement
#14
Vincent Roule, Alexandre Placente, Rémi Sabatier, Mathieu Bignon, Vladimir Saplacan, Calin Ivascau, Paul Milliez, Farzin Beygui
OBJECTIVES: To evaluate the impact of the angles quantified by multidetector computed tomography (MDCT) between the ascending aorta's long axis and, the left ventricular inflow long axis (LVLA), or the left ventricule outflow tract long axis, and the occurrence of post-transcatheter aortic valve replacement (TAVR) aortic regurgitation (AR). METHODS: We prospectively included 136 consecutive patients who underwent a transfemoral TAVR with a preoperative MDCT. The groups were defined according to AR <2 or ≥2 assessed by echocardiography at 1 month...
August 10, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28792140/effect-of-patient-prosthesis-mismatch-in-aortic-position-on-late-onset-tricuspid-regurgitation-and-clinical-outcomes-after-double-valve-replacement
#15
Seung Hyun Lee, Young Nam Youn, Byung Chul Chang, Hyun Chel Joo, Sak Lee, Kyung Jong Yoo
PURPOSE: Significant late-onset tricuspid regurgitation (TR) is unfortunately common after double valve replacement (DVR); however, its underlying factors remain undefined. We evaluated the effect of aortic patient-prosthesis mismatch (PPM) on late-onset TR and clinical outcomes after DVR. MATERIALS AND METHODS: Of the 2392 consecutive patients who underwent aortic valve replacement between January 1990 and May 2014 at our institution, we retrospectively studied 462 patients who underwent DVR (excluding concomitant tricuspid valvular annuloplasty or replacement)...
September 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28739246/three-dimensional-measurement-of-aortic-annulus-dimensions-using-area-or-circumference-for-transcatheter-aortic-valve-replacement-valve-sizing-does-it-make-a-difference
#16
Alexandros Papachristidis, Michael Papitsas, Damian Roper, Yanzhong Wang, Rafal Dworakowski, Jonathan Byrne, Olaf Wendler, Philip MacCarthy, Mark J Monaghan
BACKGROUND: The use of transcatheter aortic valve replacement (TAVR) is increasing worldwide. We present our 6-year experience using three-dimensional (3D) transesophageal echocardiography (TEE) and investigate whether different sizing methods of the aortic annulus lead to different prosthesis size that may impact outcome. METHODS: We investigated 262 patients who underwent TAVR and had 3D TEE data sets of the aortic annulus. We have used the area-derived diameter (Darea = 2(area/π)) and the circumference-derived diameter (Dcirc = Circumference/π) to size the prosthesis in separate populations in different time periods...
September 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28734891/ct-defined-prosthesis-patient-mismatch-downgrades-frequency-and-severity-and%C3%A2-demonstrates-no-association-with-adverse-outcomes-after-tavr
#17
John Mooney, Stephanie L Sellers, Phillip Blanke, Philippe Pibarot, Rebecca T Hahn, Danny Dvir, Pamela S Douglas, Neil J Weissman, Susheel K Kodali, Vinod H Thourani, Hasan Jilaihawi, Omar Khalique, Craig R Smith, Shaw Hua Kueh, Mickael Ohana, Romi Grover, Christopher Naoum, Aaron Crowley, Wael A Jaber, Maria C Alu, Rupa Parvataneni, Michael Mack, John G Webb, Martin B Leon, Jonathon A Leipsic
OBJECTIVES: This study sought to determine if indexed effective orifice area (EOAi), using left ventricular outflow tract measured from computed tomography (EOAiCT), reclassified prosthesis-patient mismatch (PPM) compared with conventional echocardiogram-defined measurements (EOAiTTE). BACKGROUND: PPM does not predict mortality following transcatheter aortic valve replacement (TAVR). However, it is unknown if the EOAiCT of the left ventricular outflow tract improves risk stratification...
July 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28734890/hybrid-imaging-to-assess-prosthesis-patient-mismatch-after-tavr-in-search-of-validation
#18
EDITORIAL
Sorin V Pislaru, Vuyisile T Nkomo
No abstract text is available yet for this article.
July 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28698291/bioprosthetic-valve-fracture-improves-the-hemodynamic-results-of-valve-in-valve-transcatheter-aortic-valve-replacement
#19
Adnan K Chhatriwalla, Keith B Allen, John T Saxon, David J Cohen, Sanjeev Aggarwal, Anthony J Hart, Suzanne J Baron, Danny Dvir, A Michael Borkon
BACKGROUND: Valve-in-valve (VIV) transcatheter aortic valve replacement (TAVR) may be less effective in small surgical valves because of patient/prosthesis mismatch. Bioprosthetic valve fracture (BVF) using a high-pressure balloon can be performed to facilitate VIV TAVR. METHODS AND RESULTS: We report data from 20 consecutive clinical cases in which BVF was successfully performed before or after VIV TAVR by inflation of a high-pressure balloon positioned across the valve ring during rapid ventricular pacing...
July 2017: Circulation. Cardiovascular Interventions
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
#20
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...
November 1, 2017: Interactive Cardiovascular and Thoracic Surgery
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