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Mitral annular calcification

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https://www.readbyqxmd.com/read/28878582/transcatheter-mitral-valve-replacement-with-the-edwards-sapien-3-valve
#1
Biswajit Kar, Angelo Nascimbene, Igor D Gregoric, Manish Patel, Pranav Loyalka
We describe the case of a 57-year-old man who had severe mitral valve stenosis and regurgitation without significant annular calcification. He was not a candidate for surgical valve replacement or repair because of his substantial comorbid conditions, overall frailty, and elevated surgical risk. He underwent successful transcatheter mitral valve replacement of his native mitral valve with compassionate, off-label use of an Edwards Sapien 3 valve. A search of the literature produced no other cases like ours, which represents a further evolution of the transcatheter valve implantation concept...
August 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28838536/transcatheter-valve-implantation-in-mitral-annular-calcification-during-open-surgery-extended-collar-technique
#2
Michael Ghosh-Dastidar, Vinayak Bapat
We describe an improvised technique during open surgery of inserting a transcatheter heart valve in the mitral position under very challenging circumstances. This is the first described use of the "extended collar" technique, which allowed implantation of a transcatheter heart valve in severe mitral valve annular calcification, into which a surgical valve could not safely be implanted. We believe that this technique is reproducible and may be helpful to other surgeons when faced with similar difficult circumstances...
September 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28838533/surgical-management-of-caseous-calcification-of-the-mitral-annulus
#3
Laura S Fong, Aden J McLaughlin, N Louis Okiwelu, Indra A J Nordstrand, Mark Newman, Jurgen Passage, Pragnesh V Joshi
Caseous calcification of the mitral annulus (CCMA) is a rare variant of mitral annular calcification; it can manifest with conduction abnormalities or systemic embolization. It typically involves the posterior mitral annulus, and surgery is indicated for severe mitral valve dysfunction, for embolic complications or when the diagnosis is not certain. We describe a structured approach to the surgical management of CCMA using bovine pericardium to repair the defect.
September 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28799109/difficult-diagnosis-of-ruptured-mitral-valve-aneurysm-because-of-severe-mitral-annular-calcification
#4
Takahiro Sakamoto, Hiroyuki Yoshitomi, Akihiro Endo, Kazuaki Tanabe
No abstract text is available yet for this article.
August 10, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28760473/transapical-mitral-valve-implantation-for-native-mitral-valve-stenosis-using-a-balloon-expandable-prosthesis
#5
Philipp Kiefer, Thilo Noack, Joerg Seeburger, Alexandro Hoyer, Axel Linke, Norman Mangner, Lukas Lehmkuhl, Friedrich Wilhelm Mohr, David Holzhey
BACKGROUND: Transcatheter mitral valve implantation (TMVI) is still in its infancy and is mainly limited to valve-in-valve or valve-in-ring implantations. We present the early experience with TMVI for severe calcified native MV stenosis. METHODS: Between January 2014 and June 2015, 6 of 11 patients screened (mean age, 77.4 ± 6.3 years; 66% men) with severe native mitral valve (MV) stenosis (mean gradient [Pmean], 11.1 ± 2.1 mm Hg; mean effective orifice area [EOA], 0...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28720119/calcified-amorphous-tumor-of-the-heart-with-mitral-annular-calcification-a-case-report
#6
Ryo Nakamaru, Hiroki Oe, Katsuomi Iwakura, Takafumi Masai, Kenshi Fujii
BACKGROUND: Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atrial myxoma, calcified thrombi, or vegetation. Complete surgical resection is the treatment of choice for both symptom improvement and prevention of embolization, as well as for pathological diagnosis...
July 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28697033/ventricular-perforation-during-open-surgical-balloon-expandable-mitral-valve-replacement-a-case-report
#7
Yousef M Hamdeh, Jordan E Goldhammer, Nicholas J Ruggiero, John W Entwistle
A 79-year-old woman with severe mitral annular calcification was scheduled for mitral valve replacement. A SAPIEN 3 valve was implanted in mitral position using an open surgical approach. Immediately after cardiopulmonary bypass, bleeding from an unidentified source was encountered. Cardiopulmonary bypass was emergently resumed and a laceration of the left ventricular apex due to the valve delivery system was detected. Risk factors specific to the open surgical approach include a decompressed ventricle, decreased annulus to apical distance, and the absence of continuous fluoroscopic and echocardiographic imaging...
July 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28619195/association-of-triglyceride-related-genetic-variants-with-mitral%C3%A2-annular%C3%A2-calcification
#8
RANDOMIZED CONTROLLED TRIAL
Mehdi Afshar, Kevin Luk, Ron Do, Line Dufresne, David S Owens, Tamara B Harris, Gina M Peloso, Kathleen F Kerr, Quenna Wong, Albert V Smith, Mathew J Budoff, Jerome I Rotter, L Adrienne Cupples, Stephen S Rich, James C Engert, Vilmundur Gudnason, Christopher J O'Donnell, Wendy S Post, George Thanassoulis
BACKGROUND: Mitral annular calcium (MAC), commonly identified by cardiac imaging, is associated with cardiovascular events and predisposes to the development of clinically important mitral valve regurgitation and mitral valve stenosis. However, its biological determinants remain largely unknown. OBJECTIVES: The authors sought to evaluate whether a genetic predisposition to elevations in plasma lipids is associated with the presence of MAC. METHODS: The authors used 3 separate Mendelian randomization techniques to evaluate the associations of lipid genetic risk scores (GRS) with MAC in 3 large patient cohorts: the Framingham Health Study, MESA (Multiethnic European Study of Atherosclerosis), and the AGE-RS (Age, Gene/Environment Susceptibility-Reykjavik Study)...
June 20, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28583687/relation-of-serum-vitamin-d-to-risk-of-mitral-annular-and-aortic-valve-calcium-from-the-multi-ethnic-study-of-atherosclerosis
#9
MULTICENTER STUDY
Martin Tibuakuu, Di Zhao, Ian H de Boer, Eliseo Guallar, Anna E Bortnick, Pamela L Lutsey, Matthew J Budoff, Jorge R Kizer, Bryan R Kestenbaum, Erin D Michos
Serum 25-hydroxyvitamin D [25(OH)D] concentration has been identified as a possible modifiable risk factor for cardiovascular disease (CVD). We hypothesized that serum 25(OH)D concentration would be associated with calcifications of the left-sided heart valves, which are markers of CVD risk. Aortic valve calcium (AVC) and mitral annular calcium (MAC) were quantified from cardiac computed tomography scans performed on 5,530 Multi-Ethnic Study of Atherosclerosis participants at the baseline examination (2000 to 2002) and at a follow-up visit at either Examination 2 (2002 to 2004) or Examination 3 (2004 to 2005)...
August 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28560501/relationship-of-bone-mineral-density-with-valvular-and-annular-calcification-in-community-dwelling-older-people-the-cardiovascular-health-study
#10
Daniele Massera, Shuo Xu, Traci M Bartz, Anna E Bortnick, Joachim H Ix, Michel Chonchol, David S Owens, Eddy Barasch, Julius M Gardin, John S Gottdiener, John R Robbins, David S Siscovick, Jorge R Kizer
Associations between bone mineral density and aortic valvular, aortic annular, and mitral annular calcification were investigated in a cross-sectional analysis of a population-based cohort of 1497 older adults. Although there was no association between continuous bone mineral density and outcomes, a significant association between osteoporosis and aortic valvular calcification in men was found. INTRODUCTION: The process of cardiac calcification bears a resemblance to skeletal bone metabolism and its regulation...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28527769/severe-mitral-annular-calcification-first-experience-with-transcatheter-therapy-using-a-dedicated-mitral-prosthesis
#11
Paul Sorajja, Mario Gössl, Richard Bae, Lisa Tindell, John R Lesser, Judah Askew, R Saeid Farivar
No abstract text is available yet for this article.
May 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28471059/long-or-redundant-leaflet-complicating-transcatheter-mitral-valve-replacement-case-vignettes-that-advocate-for-removal-or-reduction-of-the-anterior-mitral-leaflet
#12
Adam B Greenbaum, Jose F Condado, Marvin Eng, Stamatios Lerakis, Dee Dee Wang, Dennis W Kim, Robert J Lederman, Gaetano Paone, William W O Neill, Vinod H Thourani, Vasilis C Babaliaros
Transcatheter mitral valve replacement (TMVR) procedures can be an alternative to surgical valve replacement for high surgical risk patients with bioprosthetic mitral valves, annuloplasty rings, or severe mitral annular calcification (MAC). TMVR can trigger acute left ventricular outflow tract (LVOT) obstruction from permanent displacement of the native anterior mitral leaflet toward the left ventricular septum, more often among patients undergoing valve-in-ring and valve-in-MAC procedures. Although acute LVOT obstruction is well described in the literature, there are important additional complications of TMVR related to the length and/or redundancy of the anterior mitral valve that have been recognized after mitral valve surgery and have not been previously reported in the setting of TMVR...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28460029/mitral-annular-calcification-progression-and-the-risk-of-atrial-fibrillation-results-from-mesa
#13
Wesley T O'Neal, Jimmy T Efird, Saman Nazarian, Alvaro Alonso, Erin D Michos, Moses Szklo, Susan R Heckbert, Elsayed Z Soliman
Aims: To determine if progression of mitral annular calcium (MAC) detected by cardiac computed tomography (CT) predicts incident atrial fibrillation (AF). Methods and results: This analysis included 5683 participants (mean age 64 ± 10 years; 52% women; 40% whites; 27% blacks; 21% Hispanics; 12% Chinese-Americans) from the Multi-Ethnic Study of Atherosclerosis. MAC was measured by cardiac CT at baseline and at a follow-up CT scan over a mean time of 2.4 ± 0...
April 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28444177/single-centre-experience-with-transapical-transcatheter-mitral-valve-implantation%C3%A2
#14
Gry Dahle, Kjell-Arne Rein, Arnt E Fiane
OBJECTIVES: A transcatheter heart valve technique can be used in failed mitral valve repairs with annuloplasty rings, deterioriated bioprostheses and in mitral annular calcification, all serving as 'docking stations' for balloon-expandable valves. Specially designed transcatheter mitral valve platforms are used in ongoing studies for native mitral valve regurgitation. We present our single centre experience with transcatheter mitral valve implantation-transapical approach procedures in eleven patients...
April 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28427597/intentional-percutaneous-laceration-of%C3%A2-the%C3%A2-anterior-mitral-leaflet-to-prevent%C3%A2-outflow%C3%A2-obstruction-during-transcatheter-mitral-valve-replacement-first-in-human%C3%A2-experience
#15
Vasilis C Babaliaros, Adam B Greenbaum, Jaffar M Khan, Toby Rogers, Dee Dee Wang, Marvin H Eng, William W O'Neill, Gaetano Paone, Vinod H Thourani, Stamatios Lerakis, Dennis W Kim, Marcus Y Chen, Robert J Lederman
OBJECTIVES: This study sought to use a new catheter technique to split the anterior mitral valve leaflet (AML) and prevent iatrogenic left ventricular outflow tract (LVOT) obstruction immediately before transcatheter mitral valve replacement (TMVR). BACKGROUND: LVOT obstruction is a life-threatening complication of TMVR, caused by septal displacement of the AML. METHODS: The procedure was used in patients with severe mitral valve disease and prohibitive surgical risk...
April 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28407126/mitral-valve-replacement-in-severely-calcified-mitral-valve-annulus-a-10-year-experience
#16
Kareem Salhiyyah, Hassan Kattach, Ahmed Ashoub, Diana Patrick, Szabolcs Miskolczi, Geoffrey Tsang, Sunil K Ohri, Clifford W Barlow, Theodore Velissaris, Steve Livesey
OBJECTIVES: Severe calcification in the mitral valve annulus is a challenging problem during mitral valve surgery. We describe our experience with mitral valve replacement in severely calcified mitral valve without decalcification of the annulus. METHODS: Between April 2001 and July 2011, 61 patients underwent mitral valve replacement with severe mitral annulus calcification without decalcification of the annulus. This retrospective study was performed to assess the surgical and the long-term postoperative outcomes in this group...
September 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28396768/long-term-outcome-in-a-case-of-translocated-mitral-valve-replacement-for-massive-mitral-annular-calcification
#17
Go Kataoka, Kiyoharu Nakano, Ryota Asano, Atsuhiko Sato, Wataru Tatsuishi
Few reports have described long-term outcomes after translocated mitral valve replacement. We describe tips, potential pitfalls, and long-term outcome associated with the construction of a new mitral annulus and reinforcement of prosthesis attachment using a mitral prosthetic valve with an equine pericardial collar in a woman with extensive mitral valve calcification.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28369395/a-simple-preoperative-score-including-the-surgeon-s-experience-to-predict-the-probability-of-a-successful-mitral-valve-repair
#18
Hendrik T Tevaearai Stahel, Andrea Kammermann, Brigitta Gahl, Lars Englberger, Thierry P Carrel
OBJECTIVES: According to recent guidelines, mitral valve (MV) repair is preferable to replacement. However, replacement is sometimes inevitable. Aims of the study were to identify variables that predict the risk of an unsuccessful MV repair and to evaluate a score that could help in planning MV surgical procedures. METHODS: Clinical data of all consecutive adult mitral valve surgical procedures, performed during a 50-month period, were extracted from our clinical registry, and combined with echocardiographic variables...
June 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28366636/mitral-annular-calcification-as-a-possible-nidus-for-endocarditis-a-descriptive-series-with-bacteriological-differences-noted
#19
Gregg S Pressman, Mary Rodriguez-Ziccardi, Charles H Gartman, Edinrin Obasare, Emmanuel Melendres, Vivian Arguello, Vikas Bhalla
BACKGROUND: Mitral annular calcification (MAC) is a chronic inflammatory process with similarities to atherosclerosis. It is common in elderly patients and those with renal dysfunction. Although MAC is associated with cardiovascular morbidity, its relationship to infective endocarditis is unclear. The aim of this study was to test the hypothesis that MAC would be prevalent in patients with mitral valve vegetations and that vegetations would frequently occur on calcific nodules. A secondary aim was to look for possible bacteriological differences between vegetations attached to the calcified annulus versus leaflet vegetations...
June 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28330654/doppler-echocardiography-for-the-estimation-of-lv-filling-pressure-in-patients-with-mitral-annular-calcification
#20
Muaz M Abudiab, Lakshmi H Chebrolu, Robert C Schutt, Sherif F Nagueh, William A Zoghbi
OBJECTIVES: This study sought to identify Doppler parameters useful for the assessment of left ventricular filling pressure (LVFP) in patients with mitral annular calcification (MAC) and to develop and validate a decision algorithm for assessing LVFP in such patients. BACKGROUND: Predicting LVFP in the presence of MAC is problematic. METHODS: Prospectively, 50 patients with MAC (mean 72 ± 11 years of age) underwent a complete Doppler echocardiographic study and right or left heart catheterization...
March 10, 2017: JACC. Cardiovascular Imaging
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