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https://www.readbyqxmd.com/read/28545062/association-of-frailty-status-with-acute-kidney-injury-and-mortality-after-transcatheter-aortic-valve-replacement-a-systematic-review-and-meta-analysis
#1
Charat Thongprayoon, Wisit Cheungpasitporn, Natanong Thamcharoen, Patompong Ungprasert, Wonngarm Kittanamongkolchai, Michael A Mao, Ankit Sakhuja, Kevin L Greason, Kianoush Kashani
OBJECTIVE: Frailty is a common condition in patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve replacement (TAVR). The aim of this systematic review was to assess the impact of frailty status on acute kidney injury (AKI) and mortality after TAVR. METHODS: A systematic literature search was conducted using MEDLINE, EMBASE, and Cochrane databases from the inception through November 2016. The protocol for this study is registered with PROSPERO (International Prospective Register of Systematic Reviews; no...
2017: PloS One
https://www.readbyqxmd.com/read/28544844/image-of-the-month-concomitant-tricuspid-and-mitral-native-valve-infective-endocarditis
#2
Su-Jin Jeong, Sang-Hoon Seol, Pil Sang Song
A 33-year-old immunocompetent man was admitted to the authors' hospital with a one-month duration of fevers, chills, and non-productive coughs, and suddenonset weakness and ischemic pain of both lower extremities. Physical examination revealed crepitating rales heard over bilateral lung fields. On auscultation, a grade 2~3/6 systolic murmur was heard over the leftlower sternal border and apical area. Transthoracic echocardiography revealed a mobile mass on the tricuspid valve compatible with vegetation, in addition to concomitant mitral valve vegetation (Video 1)...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544843/a-new-sign-of-severe-aortic-regurgitation-detected-through-airflow-analysis-in-mechanical-ventilation
#3
Juan C Garcia-Rubira, Maria J Cristo-Ropero, Manuel Almendro-Delia, Rafael Hidalgo-Urbano
A 72-year-old female with a previous history of aortic valve replacement by biological prosthesis was admitted with progressive heart failure. The clinical course was unfavorable, requiring inotropic support and invasive mechanical ventilation. Auto-triggering of the ventilator from cardiac origin has been previously described, and explained as a consequence of hyperdynamic circulation. In our case, the oscillatory movements due to the aortic regurgitation are transmitted to the airway. Early recognition of this condition can facilitate not only the correction this asynchrony in mechanical ventilation but also should raise the suspicion of aortic regurgitation...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544842/transfemoral-valve-in-valve-in-a-degenerated-small-aortic-bioprosthesis-five-year-follow-up
#4
Stefano Salizzoni, Federico Conrotto, Mauro Rinaldi, Gian Paolo Ussia, Gaetana Ferraro, Mauro Giorgi, Maurizio D'Amico
A small-sized bioprosthesis can limit transcatheter valve-in-valve (V-in-V) implantations. The case is reported of a 91-year-old woman who had successfully undergone a V-in-V procedure with a 26 mm CoreValve in a previously implanted Mitroflow 19 mm valve. At the five-year follow up the prosthesis showed good echocardiographic function and the patient was alive and free from major symptoms. The patient died three months after the follow up examination at the age of 96 years. This case demonstrates the feasibility, with acceptable longterm functioning, of a V-in-V procedure involving a small bioprosthesis...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544841/transcatheter-valve-in-valve-implantation-failing-tricuspid-bioprosthesis-in-a-patient-with-ebstein%C3%A2-s-anomaly
#5
Pedro A Villablanca, Aman M Shah, David F Briceno, Ali N Zaidi, Mei Chau, Mario J Garcia, David Slovut, Cynthia Taub
Transcatheter valve-in-valve (VIV) implantation has been recently proposed as an alternative to surgical reoperative aortic valve replacement in patients with a failing aortic bioprosthesis. Experience with transcatheter VIV implantation at other valve positions is very limited. Herein is reported the case of an 18-year-old man with Ebstein's anomaly and severe tricuspid valve (TV) regurgitation status after bioprosthetic valve replacement, who developed new dyspnea on exertion three years after the initial valve replacement...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544840/redo-tricuspid-valve-repair-with-leaflet-augmentation-using-the-left-atrial-wall
#6
Daisuke Endo, Kenji Kuwaki, Taira Yamamoto, Atsushi Amano
The case is reported of a 79-year-old female who received a patch augmentation of the tricuspid anterior and septal leaflets with a resected left atrial wall to address recurrent tricuspid regurgitation, including tricuspid valve tethering. The patient was admitted to the authors' hospital for chronic heart failure with paravalvular leakage after aortic valve replacement and recurrent severe tricuspid regurgitation. She had undergone two previous cardiac surgeries. Re-tricuspid repair required an augmentation of the tricuspid valve leaflets in addition to tricuspid annuloplasty...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544838/granulomatosis-with-polyangiitis-presenting-with-acute-aortic-and-mitral-regurgitation-case-report-and-big-data-analysis
#7
Sadeer G Al-Kindi, M Amer Al-Aiti, Michael Yang, Richard A Josephson
Granulomatosis with polyangiitis (GPA) is a rare vasculitis that can have multisystem involvement, though cardiac involvement is very rare. The case is described of a 53-year-old woman who presented with acute aortic and mitral valve regurgitation requiring surgical intervention. Pathology from the excised aortic valve showed geographic necrosis concerning for GPA. Subsequent rheumatologic testing was positive for anti-serine proteinase 3 (PR3) antibody, consistent with GPA. A year after the valve surgery the patient was found to have a vegetation of the mitral valve and elevated PR3 antibody levels, and was successfully treated with an intensification of immunosuppression...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544837/candida-endocarditis-a-review-of-twelve-episodes-in-eleven-patients
#8
Tatjana Lejko Zupanc, Mateja Logar
BACKGROUND: Candida spp. are a rare but important cause of infective endocarditis. The study aim was to describe pertinent clinical data on consecutive patients with Candida endocarditis treated at a tertiary referral center between 1984 and 2013. METHODS: A retrospective search of the authors' endocarditis database was performed and the medical records of patients with confirmed Candida endocarditis were reviewed. Important data relating to demographics, medical history and clinical data, as well as information on outcome and treatment, were extracted...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544836/aortic-valve-replacement-with-the-labcor-tlpb-supra%C3%A2-porcine-bioprosthesis-intermediate-clinical-and-echocardiographic-outcomes
#9
Markus Schlömicher, Zulfugar Taghiyev, Yazan Al-Jabery, Peter Lukas Haldenwang, Leif Markthaler, Vadim Moustafine, Axel Maria Laczkovics, Justus Thomas Strauch, Matthias Bechtel
BACKGROUND: The Labcor TBLP Supra™ prosthesis is a second-generation tissue valve that has evolved from the Labcor TBLP™ prosthesis, first introduced in 1984. The Supra prosthesis is a triple-composite porcine valve, with no specific anticalcification treatment being used in its production other than standard tissue fixation with 0.4% glutaraldehyde. To date, more than 100,000 Supra valves have been implanted, mainly in South America. Despite this remarkably high number of implants, only marginal data exist concerning durability and safety issues...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544835/leaflet-mechanical-properties-of-carpentier-edwards-perimount-magna-pericardial-aortic-bioprostheses
#10
Heide Kuang, Yue Xuan, Michelle Lu, Aart Mookhoek, Andrew D Wisneski, Julius M Guccione, Liang Ge, Elaine E Tseng
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has recently been shown to be equivalent to surgical aortic valve replacement (SAVR) in intermediate-risk patients. As TAVR expands towards the traditionally SAVR population, TAVR versus SAVR durability becomes increasingly important. While the durability of TAVR is unknown, valve design - particularly with regards to leaflet stress - impacts on valve durability. Although leaflet stress cannot be measured directly, it can be determined using finite element modeling, with such models requiring the mechanical properties of the leaflets...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544834/in-vitro-pulsatile-flow-measurement-in-prosthetic-heart-valves-an-inter-laboratory-comparison
#11
Stephen M Retta, Jeff Kepner, Salvador Marquez, Bruce A Herman, Mark C S Shu, Laurence W Grossman
BACKGROUND AND AIM OF STUDY: One of the first steps in qualifying a new prosthetic valve for eventual clinical use is preclinical flow performance testing in vitro. Such testing is typically performed in an in-vitro test system that simulates the pumping mechanics of the left ventricle of the heart, generally referred to as a pulse duplicator or duplicator. Historically, test results in these systems have varied from duplicator to duplicator. This collaborative effort between heart valve manufacturers and the Food and Drug Administration (FDA) was designed to evaluate the variability of the pulse duplicator test technology for pulsatile flow performance measurement in an interlaboratory round robin...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544833/how-heart-valves-evolve-to-adapt-to-an-extreme-pressure-system-morphologic-and-biomechanical-properties-of-giraffe-heart-valves
#12
Jonas Amstrup Funder, Carl Christian Danielsen, Ulrik Baandrup, Bo Martin Bibby, Ted Carl Andelius, Emil Toft Brøndum, Tobias Wang, J Michael Hasenkam
BACKGROUND: Heart valves which exist naturally in an extreme-pressure system must have evolved in a way to resist the stresses of high pressure. Giraffes are interesting as they naturally have a blood pressure twice that of humans. Thus, knowledge regarding giraffe heart valves may aid in developing techniques to design improved pressure-resistant biological heart valves. METHODS: Heart valves from 12 giraffes and 10 calves were explanted and subjected to either biomechanical or morphological examinations...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544832/percutaneous-antegrade-trans-septal-closure-of-mitral-paravalvular-leak-without-creation-of-an-arteriovenous-wire-loop-in-patients-with-coexistent-mechanical-aortic-valve
#13
Teoman Kilic, Senol Coskun, Kurtulus Karauzum, Sadan Yavuz, Tayfun Sahin
BACKGROUND: Various approaches such as antegrade trans-septal, retrograde transfemoral and transapical techniques have been used to close mitral paravalvular leak (PVL) in patients with an aortic prosthesis. During the implementation of these techniques, an arteriovenous guidewire loop is often created for device delivery. However, passing through a mechanical aortic valve may cause hemodynamic compromise and prolong the procedure. To date, no studies have evaluated antegrade mitral PVL closure without the use of an arteriovenous wire loop in patients with a mechanical aortic prosthesis...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544831/aortic-root-surgery-in-marfan-syndrome-medium-term-outcome-in-a-single-center-experience
#14
Christine H Attenhofer Jost, Heidi M Connolly, Christopher G Scott, Naser M Ammash, Juan M Bowen, Hartzell V Schaff
BACKGROUND: The study aim was to analyze the authors' experience with aortic root surgery in Marfan syndrome (MFS), and to expand the surgical outcome data of patients meeting the Ghent criteria (Marfan registry). METHODS: Analyses were performed of data acquired from MFS patients (who met the Ghent criteria), including an aortic root surgery and Kaplan-Meier survival. RESULTS: Between April 2004 and February 2012, a total of 59 MFS patients (mean age at surgery 36 ± 13 years) underwent 67 operations for aortic root aneurysm (n = 52), aortic valve (AV) regurgitation (n = 15), acute aortic dissection (n = 2), and/or mitral valve (MV) regurgitation resulting from MV prolapse (n = 7)...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544830/assessment-of-contributors-of-aortopathy-and-subclinical-left-ventricular-dysfunction-in-normally-functioning-bicuspid-aortic-valves
#15
Kamil Tuluce, Selcen Yakar Tuluce, Ersin Cagri Simsek, Serdar Bayata, Cem Nazli
BACKGROUND: Left ventricular (LV) function and the dimensions of aortic valves from normally functioning bicuspid aortic valve (BAV) patients were compared with those of healthy control patients. A comparison between patients with antero-posterior BAV (BAV-AP) or right-left BAV (BAV-RL) was also performed, and the determinants of aortopathy and LV function were investigated. METHODS: Sixty-eight patients with aortic velocities <2 m/s and trivial or mild aortic regurgitation were included in the study...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544829/symetis-tf-acurateneo%C3%A2-valve-in-valve-a-new-indication-for-another-self-expanding-tavi-prosthesis
#16
Elton Pllaha, Paolo Pagnotta, Marco Rossi, Bernhard Reimers
During the past decade there has been a major shift in the use of surgical bioprostheses. Consequently, due to the increasing age of the population there will be a major increase in the incidence of failure of these prostheses. While mortality associated with the re-replacement of surgical valve failures remains high, advances in transcatheter interventions have permitted the use of transcatheter valves in degenerative surgical bioprostheses. Herein is described the first use of the Symetis transfemoral ACURATEneo™ valve-in-valve procedure, together with details of the associated technical challenges...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544828/acute-aortic-regurgitation-in-the-current-era-of-percutaneous-treatment-pathophysiology-and-hemodynamics
#17
Baris Bugan, Erkan Yildirim, Murat Celik, Uygar Cagdas Yuksel
Aortic regurgitation (AR) is characterized by the backflow of blood from the aorta to the left ventricle. Acute AR typically causes severe pulmonary edema and hypotension, and is a surgical emergency. In chronic AR, however, compensatory mechanisms can clinically compensate for years, with normal left ventricular function and no symptoms. While the hemodynamic mechanisms of chronic AR on the left ventricle are well described, the hemodynamic mechanisms of acute AR are not clear. Most of the literature on acute AR includes either small series or case reports...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544827/procedural-techniques-for-the-management-of-severe-transvalvular-and-paravalvular-aortic-regurgitation-during-tavr
#18
Abdulla A Damluji, Carlos E Alfonso, Mauricio G Cohen
Aortic regurgitation (AR) after transcatheter aortic valve replacement (TAVR) is associated with an increased risk of mortality. In severe cases, abrupt hemodynamic changes may occur with a sudden increase in left ventricular end-diastolic pressure that results in frank pulmonary edema, hypoxia, and cardiogenic shock. Here, the case is reported of a patient who developed severe AR immediately after valve deployment that led to severe hemodynamic compromise. The procedural techniques necessary for the immediate management of severe transvalvular and paravalvular AR are described...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544826/preoperative-computed-tomography-scan-analysis-of-interleaflets-triangles-to-guide-aortic-root-repair-procedures
#19
Claudia Romagnoni, Andrea Mangini, Monica Contino, Rubina Rosa, Sonia Ippolito, Guido Gelpi, Carlo Antona
BACKGROUND: Stabilization of the ventriculo-aortic junction (VAJ) is gaining increasing interest in the context of aortic valve repair, since its dilation is a well-recognized risk factor for long-term repair failure. Interleaflets triangles are key elements of the VAJ, but cannot be completely visualized using echocardiography. A three-dimensional (3D) reconstruction of electrocardiogram-triggered computed tomography (CT) scan images allows an analysis of the real dimensions and anatomic characteristics of the subcommissural triangles...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544825/leaflet-hypomobility-after-transcatheter-aortic-valve-replacement-thrombosis-or-mechanical-factors-a-possible-pathophysiological-pattern
#20
Michele Gallo, Stefanos Demertzis, Gino Gerosa, Enrico Ferrari
Transcatheter heart valve replacement is an emerging technology in the treatment of valvular disease. During recent years, the opportunity to replace a heart valve via percutaneous access or via a miniinvasive access without the use of cardiopulmonary bypass has revolutionized the approach to this pathology. The different designs of transcatheter valves have also altered the spectrum of possible complications, with the unexpected occurrence of leaflet hypomobility after valve deployment. Here, the pathophysiological pattern of this complication is categorized, and an analysis provided of recently reported clinical evidences...
January 2017: Journal of Heart Valve Disease
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