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Mitral annular calcification

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https://www.readbyqxmd.com/read/28039339/concomitant-mitral-annular-calcification-and-severe-aortic-stenosis-prevalence-characteristics-and-outcome-following-transcatheter-aortic-valve-replacement
#1
Yigal Abramowitz, Yoshio Kazuno, Tarun Chakravarty, Hiroyuki Kawamori, Yoshio Maeno, David Anderson, Zev Allison, Geeteshwar Mangat, Wen Cheng, Ambarish Gopal, Hasan Jilaihawi, Michael J Mack, Raj R Makkar
AIMS: Calcified aortic stenosis (AS) and mitral annular calcification (MAC) have certain similar etiology and pathophysiological mechanisms. MAC is frequently encountered in pre-procedural computed tomography (CT) imaging of patients that undergo transcatheter aortic valve replacement (TAVR), but its prognostic implications for these patients have not been thoroughly investigated. This study sought to evaluate the prevalence of MAC among patients with severe AS and to assess the clinical implications of MAC on these patients during and following TAVR...
December 30, 2016: European Heart Journal
https://www.readbyqxmd.com/read/28007276/mitral-valve-replacement-with-sapien-3-transcatheter-valve-in-severe-mitral-annular-calcification
#2
Marek Polomsky, Konstantinos P Koulogiannis, Robert M Kipperman, Barry M Cohen, Christopher J Magovern, James P Slater, Steve Xydas, Leo Marcoff, John M Brown
Transcatheter valve implantation in the mitral position with severe calcific mitral stenosis has been described in patients who are at an increased risk for conventional mitral valve surgical procedures. We report the direct deployment of the Sapien 3 valve in the mitral position with severe mitral annular calcification through a sternotomy in an arrested heart in two cases.
January 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28004210/exuberant-mitral-annular-calcification
#3
Melissa A Lyle, David F Snipelisky, Niti R Aggarwal, Fletcher A Miller, Nandan S Anavekar
Mitral annular calcification (MAC) is a chronic, progressive process characterized by calcium deposition on the mitral valve annulus. There is no current grading system to relay the severity of MAC. The primary purpose of this study was to investigate the extreme end of the severity spectrum in order to describe "exuberant mitral annular calcification", and a retrospective chart review of all patients with exuberant mitral annulus calcification evaluated at Mayo Clinic Rochester between January 1996 and December 2014 was performed...
December 22, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27990181/risk-of-cerebral-embolization-with-caseous-calcification-of-the-mitral-annulus-review-article
#4
Charles A Dietl, Christopher M Hawthorn, Veena Raizada
BACKGROUND: Caseous calcification of the mitral annulus (CCMA) is believed to have a benign prognosis. Several authors have recommended conservative management in asymptomatic patients. However, the prevalence of cerebrovascular events (CVE) in patients with CCMA has never been evaluated before. The aims of this study are to investigate whether patients with CCMA are at increased risk of cerebral embolization, and to determine whether elective surgical resection of CCMA should be considered to prevent a cardioembolic stroke...
2016: Open Cardiovascular Medicine Journal
https://www.readbyqxmd.com/read/27970202/tct-813-alcohol-septal-ablation-in-patients-with-left-ventricular-outflow-tract-obstruction-after-transcatheter-mitral-valve-replacement-for-mitral-annular-calcification-tmvr-in-mac
#5
Pradeep Yadav, Dee Dee Wang, Marvin Eng, Adam Greenbaum, William O'Neill
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27970023/tct-644-transcatheter-balloon-expandable-sapien-valve-implantation-using-transatrial-approach-in-patients-with-mitral-stenosis-and-severe-mitral-annular-calcification
#6
Abdallah El Sabbagh, Thomas Foley, Chet Rihal, Mackram Eleid, Sameh Said
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27873060/reinforced-mitral-valve-replacement-using-a-xenopericardium-collared-prosthetic-valve-for-a-heavily-calcified-or-disrupted-mitral-annulus-a-simple-dumpling-technique
#7
Masaru Ishida, Koichi Toda, Teruya Nakamura, Shigeru Miyagawa, Yasushi Yoshikawa, Satsuki Fukushima, Shunsuke Saito, Takayoshi Ueno, Toru Kuratani, Yoshiki Sawa
Heavy mitral annular calcification or severe destruction of the mitral annulus in the setting of mitral valve replacement may result in fatal complications, such as atrioventricular disruption, ventricular rupture, valve dehiscence, and perivalvular leakage. Collar-reinforced mitral valve replacements with xenopericardium have been reported to prevent perivalvular leakage and valve detachment. We herein describe our experience with an easy method of handling the modified collar-reinforced prosthetic valve, which we call the "Dumpling technique", in six patients...
November 21, 2016: Surgery Today
https://www.readbyqxmd.com/read/27832900/severe-mitral-annular-calcification-multimodality-imaging-for-therapeutic-strategies-and-interventions
#8
REVIEW
Mackram F Eleid, Thomas A Foley, Sameh M Said, Sorin V Pislaru, Charanjit S Rihal
Mitral annular calcification (MAC) is a chronic degenerative process associated with advanced age and conditions predisposing to left ventricular hypertrophy. Assessment of mitral valve disease in patients with severe MAC can be a challenge. When severe MAC results in mitral stenosis or regurgitation, multimodality imaging with 2-dimensional, 3-dimensional, and Doppler echocardiography and cardiac computed tomography angiography can delineate the severity and pathoanatomic features to help guide therapeutic strategies...
November 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27828851/a-case-report-of-a-giant-right-ventricular-outflow-tract-in-a-young-man
#9
Die Hu, Dao-Quan Peng, Xiang-Ping Li, Bi-Lian Yu
INTRODUCTION: Localized pericardium restriction is a rare disease and likely to be unrecognized owing to the atypical manifestation, even after diagnostic avenues are exhausted. Recognizing the red flags of the disease could timely spark a preliminary suspicion of the disease and thus contribute to the early application of relevant examinations. CASE PRESENTATION: We will here report a case of a 21-year-old young man with a giant right ventricular outflow tract...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27772601/implantation-of-transcatheter-aortic-prosthesis-in-3-patients-with-mitral-annular-calcification
#10
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/27753604/mitral-annular-calcification-is-not-associated-with-decreased-procedural-success-durability-of-repair-or-left-ventricular-remodelling-in-percutaneous-edge-to-edge-repair-of-mitral-regurgitation
#11
Richard Cheng, Emily Tat, Robert J Siegel, Reza Arsanjani, Asma Hussaini, Moody Makar, Yukiko Mizutani, Alfredo Trento, Saibal Kar
AIMS: Mitral annular calcification (MAC) negatively influences outcomes in surgical mitral valve (MV) repair for mitral regurgitation (MR). However, there are no data on whether MAC impacts on outcomes of MitraClip percutaneous MV edge-to-edge repair. This study sought to investigate whether the presence of MAC impacts on the procedural success and durability of percutaneous transcatheter repair of MR using the MitraClip. METHODS AND RESULTS: One hundred and seventy-three patients undergoing MitraClip repair for significant MR were studied...
October 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27751264/mobile-thrombus-originating-from-densely-calcified-mitral-annulus-with-cerebral-embolism
#12
Jagdish C Mohan, Madhu Shukla, Vishwas Mohan, Arvind Sethi
Mitral annular calcification (MAC) has been considered a predisposition and an association of thrombo-embolic disease. Superimposed thrombus on MAC is under-appreciated as a potential cause of systemic thrombo-embolism. This report describes an elderly gentleman, who had recurrent cerebral embolism and in one of the episodes, a large mobile thrombus was detected on the ventricular surface of calcified mitral annulus. The thrombus disappeared after initiation of anti-coagulation.
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27678337/surgical-antegrade-transcatheter-mitral-valve-implantation-for-symptomatic-mitral-valve-disease-and-heavily-calcified-annulus
#13
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/27594361/p-wave-dispersion-and-atrial-electromechanical-delay-do-they-vary-with-the-extent-of-mitral-annular-calcification
#14
I Eweda, M Abul-Saud, H Fouad, R N Hanna, W Nammas
No abstract text is available yet for this article.
August 2016: Acta Cardiologica
https://www.readbyqxmd.com/read/27567138/mitral-annular-calcium-and-mitral-stenosis-determined-by-multidetector-computed-tomography-in-patients-referred-for-aortic-stenosis
#15
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
#16
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/27496550/echocardiographic-predictors-of-sudden-cardiac-death-the-atherosclerosis-risk-in-communities-study-and-cardiovascular-health-study
#17
Suma H Konety, Ryan J Koene, Faye L Norby, Tony Wilsdon, Alvaro Alonso, David Siscovick, Nona Sotoodehnia, John Gottdiener, Ervin R Fox, Lin Y Chen, Selcuk Adabag, Aaron R Folsom
BACKGROUND: This study assessed the echocardiographic predictors of sudden cardiac death (SCD) within 2 population-based cohorts. METHODS AND RESULTS: Echocardiograms were obtained on 2383 participants (1993-1995) from the ARIC study (Atherosclerosis Risk in Communities; 100% black) and 5366 participants (1987-1989 and 1994-1995) from the CHS (Cardiovascular Health Study). The main outcome was physician-adjudicated SCD. We used Cox proportional-hazards models with incident coronary heart disease and heart failure as time-dependent covariates to assess the association between echocardiographic variables and SCD, adjusting for Framingham risk score variables, coronary heart disease, and renal function...
August 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27491611/mitral-regurgitation-after-transcatheter%C3%A2-aortic%C3%A2-valve-replacement-prognosis-imaging-predictors-and-potential-management
#18
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/27477571/cerebral-infarction-in-right-pons-during-the-course-of-mobile-mitral-annular-calcification-related-calcified-amorphous-tumor-during-a-long-time-hemodialysis
#19
Kazuyuki Saito, Mayumi Doi, Motohiro Karikusa, Konomi Sakata, Hiroki Sasaguri, Shuta Toru
We report here a 70 year-old male on maintenance hemodialysis who presented non-paralytic pontine exotropia. Brain MRI showed new right pons infarct. Transthoracic and transesophageal echocardiography revealed a mobile calcification at posterior mitral leaflet with rapid growing compared to 14 days ago. Neurological symptoms disappeared at least 10 days by a treatment with aspirin. Calcification reduced by a follow-up transthoracic echocardiography after 90 days from the beginning of neurological symptoms. We diagonosed him with cerebral infarction during the course of mobile mitral annular calcification-related calcified amorphous tumor...
August 31, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27411840/association-of-inflammatory-lipid-and-mineral-markers-with-cardiac-calcification-in-older-adults
#20
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
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