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Aortic annular calcification

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https://www.readbyqxmd.com/read/27772601/implantation-of-transcatheter-aortic-prosthesis-in-3-patients-with-mitral-annular-calcification
#1
Heike Baumgarten, John J Squiers, William T Brinkman, J Michael DiMaio, Ambarish Gopal, Michael J Mack, Robert L Smith
Mitral annular calcification (MAC) is a chronic degenerative process at the fibrous base of the mitral valve. It is a feared diagnosis in the context of mitral valve operations because of the risk of severe adverse events such as atrioventricular disruption, injury to the circumflex artery during debridement, and difficult placement of annular sutures. We report a series of 3 consecutive female patients with severe circular MAC who underwent successful mitral valve replacement through a lateral minithoracotomy with use of an inverted transcatheter aortic valve...
November 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27744044/pushing-the-limits-in-transcatheter-aortic-valve-replacement-high-volume-center-s-effect-overconfidence-or%C3%A2-something%C3%A2-else
#2
Francesco Nappi, Cristiano Spadaccio, Jean Louis Sablayrolles
The recent literature on transcatheter aortic valve replacement (TAVR) is shedding new light on the perspective to extend this procedure to other lower risk-category of patients, leading in fact to a potential erosion of the current guidelines. Notwithstanding the warnings provided in the literature regarding the risk of severely impairing complications, unclear survival advantage and cost-inefficiency, many observational studies, especially performed in high-volume centers, support a general drive toward the recruitment of intermediate-low risk patients in the expectation of clinical advantages versus standard surgical replacement...
October 6, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27739165/transcatheter-aortic-valve-implantation-with-the-direct-flow-medical-prosthesis-impact-of-native-aortic-valve-calcification-degree-on-outcomes
#3
Giuseppe D'Ancona, Hüseyin U Agma, Hüseyin Ince, Gihan El-Achkar, Martin Dißmann, Jasmin Ortak, Stephan Kische
OBJECTIVES: We present our single center experience with the direct flow medical (DFM) prosthesis addressing the impact of native aortic valve (AV) calcification degree on outcomes. BACKGROUND: The DFM® has been introduced for transcatheter aortic valve implantation (TAVI). The valve has a nonmetallic and inflatable support structure. METHODS: Patients were divided in two groups according to preoperative cardiac computed tomography (CT): group I moderate calcification and group II heavy calcification of the total AV area...
October 14, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27678337/surgical-antegrade-transcatheter-mitral-valve-implantation-for-symptomatic-mitral-valve-disease-and-heavily-calcified-annulus
#4
Bettina Langhammer, Christoph Huber, Stephan Windecker, Thierry Carrel
Surgical techniques for the treatment of mitral valve disease (MVD) have continuously evolved; however, anatomical details like severe annular calcification remain challenging and require sophisticated surgical strategies. Among patients with symptomatic MVD referred for surgical valve repair or replacement, four presented with circumferential calcification of the mitral annulus precluding conventional surgical techniques. Successful treatment by implanting a balloon-expandable transcatheter aortic heart valve using an antegrade surgical access was performed...
September 27, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27612848/paravalvular-leak-after-transcatheter-aortic-valve-implantation-is-it-anatomically-predictable-or-procedurally-determined-mdct-study
#5
A A Sakrana, M M Nasr, G A Ashamallah, R A Abuelatta, H A Naeim, M E Tahlawi
AIM: To investigate the determinants of paravalvular leak (PVL) occurring after transcatheter aortic valve implantation (TAVI). MATERIALS AND METHODS: One hundred and eight patients with severe symptomatic aortic stenosis (mean age 75.5±11.8 years, 72.2% male) underwent contrast-enhanced electrocardiogram (ECG)-gated multidetector computed tomography (MDCT) then successful TAVI. The following parameters were determined in the late systolic phase: annular and left ventricular outflow tract (LVOT) diameters, annular perimeter, ellipticity index, annular area, indexed annular area, LVOT perimeter, annulus/LVOT perimeter difference ratio, the LVOT to ascending aorta angle (< LVOT-AO)...
November 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27567138/mitral-annular-calcium-and-mitral-stenosis-determined-by-multidetector-computed-tomography-in-patients-referred-for-aortic-stenosis
#6
Simon Mejean, Erik Bouvier, Vincent Bataille, Patrick Seknadji, Dominique Fourchy, Jean-Yves Tabet, Olivier Lairez, Bertrand Cormier
Mitral annular calcium (MAC) is a common finding in older patients referred for transcatheter aortic valve implantation (TAVI). Multidetector computed tomography (MDCT) allows fine quantification of the calcific deposits. Our objective was to estimate the prevalence of MAC and associated mitral stenosis (MS) in patients referred for TAVI using MDCT. A cohort of 346 consecutive patients referred for TAVI evaluation was screened by MDCT for MAC: 174 had MAC (50%). Of these patients, 165 patients (95%) had mitral valve area (MVA) assessable by MDCT planimetry (age 83...
October 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27521222/relation-between-epicardial-adipose-and-aortic-valve-and-mitral-annular-calcium-determined-by-computed-tomography-in-subjects-aged-%C3%A2-65%C3%A2-years
#7
Talal S Alnabelsi, Yaser Alhamshari, Ramzi H Mulki, Jose N Codolosa, Nikoloz Koshkelashvili, Igor Goykhman, Gregg S Pressman, Abel Romero-Corral
Epicardial adipose tissue (EAT) has been linked to coronary artery calcium deposits and atherosclerotic disease. Mitral annular (MAC) and aortic valve calcium (AVC) have also been associated with atherosclerosis. This study examined the possible relation between EAT thickness and valvular calcium deposits. We included 294 patients aged ≥65 years who had noncontrast computed tomography scans of the chest. Mean age was 76 ± 7 years; 47% were men. Using reconstructed images, EAT thickness was measured at various locations...
October 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27491611/mitral-regurgitation-after-transcatheter%C3%A2-aortic%C3%A2-valve-replacement-prognosis-imaging-predictors-and-potential-management
#8
Carlos Cortés, Ignacio J Amat-Santos, Luis Nombela-Franco, Antonio J Muñoz-Garcia, Enrique Gutiérrez-Ibanes, José M De La Torre Hernandez, Juan G Córdoba-Soriano, Pilar Jimenez-Quevedo, José M Hernández-García, Ana Gonzalez-Mansilla, Javier Ruano, Jesús Jimenez-Mazuecos, Javier Castrodeza, Javier Tobar, Fabian Islas, Ana Revilla, Rishi Puri, Ana Puerto, Itziar Gómez, Josep Rodés-Cabau, José A San Román
OBJECTIVES: This study sought to analyze the clinical impact of the degree and improvement of mitral regurgitation in TAVR recipients, validate the main imaging determinants of this improvement, and assess the potential candidates for double valve repair with percutaneous techniques. BACKGROUND: Many patients with severe aortic stenosis present with concomitant mitral regurgitation (MR). Cardiac imaging plays a key role in identifying prognostic factors of MR persistence after transcatheter aortic valve replacement (TAVR) and for planning its treatment...
August 8, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27440021/-minimally-invasive-aortic-valve-replacement-via-right-mini-thoracotomy
#9
Toshinori Totsugawa
Here we demonstrate our surgical procedure of minimally invasive aortic valve replacement through right anterolateral mini-thoracotomy. Preoperative evaluation of the whole aorta by contrast-enhanced computed tomography scan is important to prevent cerebrovascular complications. The patient is set in a mild left lateral decubitus position. A skin incision is made along the anterior axillary line to the inframammary fold and the chest is opened at the 3rd or 4th intercostal space. Cardiopulmonary bypass is usually established by femoro-femoral bypass...
July 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27412343/subannular-perforation-of-left-ventricular-outflow-tract-associated-with-transcatheter-valve-implantation-pathophysiological-background-and-clinical-implications
#10
Evaldas Girdauskas, Tamer Owais, Beatrix Fey, Florian Kuntze, Bernward Lauer, Michael A Borger, Lenard Conradi, Hermann Reichenspurner, Thomas Kuntze
OBJECTIVES: Perforation of the subannular left ventricular outflow tract (LVOT) represents an uncommon but almost invariably fatal transcatheter aortic valve implantation (TAVI)-associated complication. The risk factors to predict the occurrence of this devastating complication, particularly in relation to specific LVOT anatomy, have not yet been systematically analysed. We aimed to evaluate the pathophysiological background and possible risk factors for the occurrence of subannular LVOT perforation...
July 13, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27411840/association-of-inflammatory-lipid-and-mineral-markers-with-cardiac-calcification-in-older-adults
#11
Anna E Bortnick, Traci M Bartz, Joachim H Ix, Michel Chonchol, Alexander Reiner, Mary Cushman, David Owens, Eddy Barasch, David S Siscovick, John S Gottdiener, Jorge R Kizer
OBJECTIVE: Calcification of the aortic valve and adjacent structures involves inflammatory, lipid and mineral metabolism pathways. We hypothesised that circulating biomarkers reflecting these pathways are associated with cardiac calcification in older adults. METHODS: We investigated the associations of various biomarkers with valvular and annular calcification in the Cardiovascular Health Study. Of the 5888 participants, up to 3585 were eligible after exclusions for missing biomarker, covariate or echocardiographic data...
July 13, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27154592/clinical-profile-and-outcome-of-patients-with-rheumatoid-arthritis-and-abnormally-high-aortic-stiffness
#12
Giovanni Cioffi, Ombretta Viapiana, Federica Ognibeni, Andrea Dalbeni, Giovanni Orsolini, Silvano Adami, Davide Gatti, Maurizio Fisicaro, Luigi Tarantini, Maurizio Rossini
OBJECTIVES: Ascending aorta has an increased stiffness (AoSI) in rheumatoid arthritis (RA) patients due to their chronic inflammatory status. We assessed prevalence and factors associated with increased AoSI and its prognostic role in a large cohort of RA patients. METHODS: We prospectively analysed 226 RA patients without overt cardiac disease compared with 226 non-RA patients matched for cardiovascular risk factors (non-RA controls). Abnormally high AoSI was diagnosed if AoSI > 6...
May 6, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27143596/successful-percutaneous-paravalvular-leak-closure-followed-by-transfemoral-aortic-lotus-valve-in-valve-implantation-in-a-degenerated-surgical-bioprosthesis
#13
Roberto Nerla, Alberto Cremonesi, Fausto Castriota
Bioprosthesis degeneration is a relevant clinical issue that is increasingly developing with the higher expectancy of life. Its treatment may be further complicated by the presence of paravalvular leaks, which are usually consequence of tissue friability, annular calcification, and infection. The surgical treatment of such complex conditions may be too risky, so percutaneous techniques in selected centers are becoming an attracting option. We report the case of a 65-year-old gentleman with a previous aortic valve replacement (Perimount n...
May 3, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27101969/balloon-versus-computed-tomography-sizing-of-the-aortic-annulus-for-transcatheter-aortic-valve-replacement-and-the-impact-of-left-ventricular-outflow-tract-calcification-and-morphology-on-sizing
#14
Jose F Condado, Stamatios Lerakis, James Stewart, Hanna Jensen, Travis S Henry, Sung Min Ko, Arthur Stillman, Mohammad H Rajaei, Kreton Mavromatis, Chandan Devireddy, Eric Sarin, Brad Leshnower, Robert Guyton, Brian Kaebnick, Vinod H Thourani, Peter C Block, Vasilis Babaliaros
OBJECTIVES: To evaluate the role of balloon annular sizing in transcatheter aortic valve replacement (TAVR). BACKGROUND: Multidetector cardiac computed tomography (MDCT) is the gold standard for aortic annular sizing in TAVR. Balloon sizing is increasingly used in patients with borderline annular size and severe calcification. A comparison between these two techniques is needed. METHODS: We retrospectively compared baseline characteristics and 30-day outcomes of patients undergoing balloon-expandable TAVR using annular MDCT or balloon sizing...
July 2016: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/27094423/balloon-expandable-transcatheter-heart-valves-for-native-mitral-valve-disease-with-severe-mitral-annular-calcification
#15
REVIEW
Mayra Guerrero, Marina Urena, Amit Pursnani, Dee D Wang, Alec Vahanian, William O'Neill, Ted Feldman, Dominique Himbert
Patients with mitral annular calcification (MAC) have high surgical risk for mitral valve replacement due to associated comorbidities and technical challenges related to calcium burden, precluding surgery in many patients. Transcatheter mitral valve replacement (TMVR) with the compassionate use of balloon expandable aortic transcatheter heart valves has been used in this clinical scenario. The purpose of this review was to summarize the early experience including successes and failures reported. TMVR might evolve into an acceptable alternative for selected patients with severe MAC who are not candidates for conventional mitral valve surgery...
June 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27059259/impact-of-different-aortic-valve-calcification-patterns-on-the-outcome-of-transcatheter-aortic-valve-implantation-a-finite-element-study
#16
Francesco Sturla, Mattia Ronzoni, Mattia Vitali, Annalisa Dimasi, Riccardo Vismara, Georgia Preston-Maher, Gaetano Burriesci, Emiliano Votta, Alberto Redaelli
Transcatheter aortic valve implantation (TAVI) can treat symptomatic patients with calcific aortic stenosis. However, the severity and distribution of the calcification of valve leaflets can impair the TAVI efficacy. Here we tackle this issue from a biomechanical standpoint, by finite element simulation of a widely adopted balloon-expandable TAVI in three models representing the aortic root with different scenarios of calcific aortic stenosis. We developed a modeling approach realistically accounting for aortic root pressurization and complex anatomy, detailed calcification patterns, and for the actual stent deployment through balloon-expansion...
August 16, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27056166/clinical-outcomes-and-imaging-findings-in%C3%A2-women-undergoing-tavr
#17
REVIEW
Christopher Naoum, Philipp Blanke, Danny Dvir, Philippe Pibarot, Karin Humphries, John Webb, Jonathon Leipsic
Transcatheter aortic valve replacement (TAVR) has become the standard of care for patients with hemodynamically severe aortic stenosis who are symptomatic but deemed too high risk for surgery. Recent reports suggest that sex differences exist in outcomes following TAVR and in the diagnostic imaging evaluation of patients being considered for TAVR. In this review, the authors explore the differences between men and women in baseline characteristics and outcomes following TAVR, as well as sex differences in the imaging findings of severe aortic stenosis (AS) including the diagnostic challenges in the hemodynamic assessment of severe AS in elderly women, differences in aortic valvular calcification and in the associated myocardial response to severe AS...
April 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27018394/a-technique-for-avoiding-patient-prosthesis-mismatch-in-the-small-aortic-root
#18
Abdallah K Alameddine, Victor K Alimov, Fabrizio Pluchino
In the small aortic root, extremely weakened tissue and extensive calcification predispose toward the implantation of small prostheses, anastomotic bleeding, and paravalvular leaks. We describe a procedure in which a "homemade" composite mechanical prosthesis-conduit is implanted in a supra-annular position in two patients with a small aortic root. This technique facilitates the placement of a larger prosthesis, thus avoiding patient-prosthesis mismatch. doi: 10.1111/jocs.12741 (J Card Surg 2016;31:309-310)...
May 2016: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/26949197/extra-coronary-calcification-aortic-valve-calcification-mitral-annular-calcification-aortic-valve-ring-calcification-and-thoracic-aortic-calcification-in-hiv-seropositive-and-seronegative-men-multicenter-aids-cohort-study
#19
Panteha Rezaeian, P Elliott Miller, Sabina A Haberlen, Aryabod Razipour, Hossein Bahrami, Romeo Castillo, Mallory D Witt, Lawrence Kingsley, Frank J Palella, Rine Nakanishi, Suguru Matsumoto, Anas Alani, Lisa P Jacobson, Wendy S Post, Matthew J Budoff
INTRODUCTION: Previous studies have demonstrated an association between HIV infection and coronary artery disease (CAD); little is known about potential associations between HIV infection and extra-coronary calcification (ECC). METHODS: We analyzed 621 HIV infected (HIV+) and 384 HIV uninfected (HIV-) men from the Multicenter AIDS Cohort Study who underwent non-contrast computed tomography (CT) from 2010-2013. Agatston scores were calculated for mitral annular calcification (MAC), aortic valve calcification (AVC), aortic valve ring calcification (AVRC), and thoracic aortic calcification (TAC)...
May 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/26945836/abnormal-distortion-of-aortic-corevalve-bioprosthesis-with-suicide-left-ventricle-aortic-insufficiency-and-severe-mitral-regurgitation-during-transcatheter-aortic-valve-replacement
#20
Ferdinand Leya, J Michael Tuchek, Walter Coats
We present a patient with critical degenerative aortic stenosis, mitral annular and aortomitral continuity calcification, and senile sigmoid septal hypertrophy who underwent transcatheter aortic valve replacement using the CoreValve bioprosthesis. Immediately after predilation of the aortic valve (18-mm balloon), the patient developed severe hypotension and dynamic left ventricular outflow tract (LVOT) obstruction with systolic anterior motion of the anterior mitral leaflet, causing severe mitral regurgitation...
March 4, 2016: Catheterization and Cardiovascular Interventions
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