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ischemic mitral valve

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https://www.readbyqxmd.com/read/28425027/10-year-results-of-on-x-bileaflet-mechanical-heart-valve-in-the-aortic-position-low-target-inr-regimen-in-japanese
#1
Hideki Teshima, Masahiko Ikebuchi, Yosuke Miyamoto, Ryuta Tai, Toshikazu Sano, Yusuke Kinugasa, Hiroyuki Irie
OBJECTIVES: This study was designed to establish clinical outcomes after aortic valve replacement (AVR) with On-X bileaflet mechanical heart valve. METHODS: Between 2006 and 2014, AVR was performed to 686 patients. Of them, 78 patients using On-X valve were enrolled. The mean age was 65 ± 11 years (ranged 33-85); 65% were men; and 81% were in sinus rhythm preoperatively. Calcific or degenerative tricuspid aortic valve was present in 73%. Concomitant procedures included coronary artery bypass grafting (22%), Bentall (8%), mitral valve procedure (3%) and other (9%)...
April 19, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28414667/the-mysterious-case-of-dyspnea
#2
S Saad, N Turaga, J Grant, N Jain
INTRODUCTION: Dehiscence of a mitral valve annuloplasty ring is a rare occurrence that often manifests as mitral regurgitation and heart failure. We present a case of mitral ring dehiscence which was initially unrecognized by standard 2-dimensional transthoracic echocardiography (2D TTE); and 2-dimensional transesophageal echocardiography (2D TEE);. CASE: A 65-year-old woman was referred to Cardiology clinic for evaluation of dyspnea. Her history included tobacco abuse, atrial fibrillation status post pulmonary vein isolation, nonischemic cardiomyopathy, and prior mitral valve repair with annuloplasty ring for rheumatic valvular disease...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28411753/2016-update-to-the-american-association-for-thoracic-surgery-aats-consensus-guidelines-ischemic-mitral-valve-regurgitation
#3
Irving L Kron, Damien J LaPar, Michael A Acker, David H Adams, Gorav Ailawadi, Steven F Bolling, Judy W Hung, D Scott Lim, Michael J Mack, Patrick T O'Gara, Michael K Parides, John D Puskas
No abstract text is available yet for this article.
May 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28400932/role-of-quantitative-wall-motion-analysis-in-patients-with-acute-chest-pain-at-emergency-department
#4
Kyung-Hee Kim, Sang-Hoon Na, Jin-Sik Park
BACKGROUND: Evaluation of acute chest pain in emergency department (ED), using limited resource and time, is still very difficult despite recent development of many diagnostic tools. In this study, we tried to determine the applicability of new semi-automated cardiac function analysis tool, velocity vector imaging (VVI), in the evaluation of the patients with acute chest pain in ED. METHODS: We prospectively enrolled 48 patients, who visited ED with acute chest pain, and store images to analyze VVI from July 2005 to July 2007...
March 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28400922/pheochromocytoma-and-stress-cardiomyopathy-insight-into-pathogenesis
#5
Sahil Agrawal, Jamshid Shirani, Lohit Garg, Amitoj Singh, Santo Longo, Angelita Longo, Mark Fegley, Lauren Stone, Muhammad Razavi, Nicoleta Radoianu, Sudip Nanda
AIM: To investigate the occurrence of cardiomyopathy (CMP) in a cohort of patients with histologically proven pheochromocytoma (pheo), and to determine if catecholamine excess was causative of the left ventricular (LV) dysfunction. METHODS: A retrospective chart review spanning years 1998 through 2014 was undertaken and patients with a diagnosis of pheo confirmed with histopathologic examination were included. Presenting electrocardiograms and cardiac imaging studies were reviewed...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28380047/response-of-the-human-myocardium-to-ischemic-injury-and-preconditioning-the-role-of-cardiac-and-comorbid-conditions-medical-treatment-and-basal-redox-status
#6
Kelly Casós, Gemma Ferrer-Curriu, Paula Soler-Ferrer, María L Pérez, Eduard Permanyer, Arnau Blasco-Lucas, Juan Manuel Gracia-Baena, Miguel A Castro, Carlos Sureda, Jordi Barquinero, Manuel Galiñanes
BACKGROUND: The diseased human myocardium is highly susceptible to ischemia/reoxygenation (I/R)-induced injury but its response to protective interventions such as ischemic preconditioning (IPreC) is unclear. Cardiac and other pre-existing clinical conditions as well as previous or ongoing medical treatment may influence the myocardial response to I/R injury and protection. This study investigated the effect of both on myocardial susceptibility to I/R-induced injury and the protective effects of IPreC...
2017: PloS One
https://www.readbyqxmd.com/read/28374271/effect-of-preoperative-left-ventricular-diastolic-dysfunction-on-mid-term-outcomes-after-surgical-ventricular-restoration-for-ischemic-cardiomyopathy
#7
Koji Furukawa, Mitsuhiro Yano, Eisaku Nakamura, Masakazu Matsuyama, Masanori Nishimura, Katsuya Kawagoe, Kunihide Nakamura
OBJECTIVES: The impact of surgical ventricular restoration (SVR) on survival and major adverse cardiac events (MACEs) is still controversial. The purposes of this study were to analyze our surgical experience with SVR for ischemic cardiomyopathy and to determine the effect of preoperative left ventricular diastolic dysfunction on mid-term outcomes after SVR. METHODS AND RESULTS: Between April 2010 and May 2016, 19 patients underwent SVR. The mean age was 60 ± 11 years and the mean New York Heart Association functional class was 2...
April 4, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28357714/the-role-for-cardiovascular-remodeling-in-cardiovascular-outcomes
#8
REVIEW
Nishant Krishna Sekaran, Anna Lisa Crowley, Fernanda Rodrigues de Souza, Elmiro Santos Resende, Sunil V Rao
PURPOSE OF REVIEW: Ischemic and non-ischemic injury to the heart causes deleterious changes in ventricular size, shape, and function. This adverse remodeling is mediated by neurohormonal and hemodynamic alterations and is reflected in non-invasive measures of left ventricular ejection fraction (LVEF), left ventricular end-systolic volume (LVESV), and left ventricular end-diastolic volume (LVEDV). These measures are closely linked to cardiovascular outcomes and have become key surrogate endpoints for evaluating the therapeutic efficacy of contemporary treatments for heart failure with reduced ejection fraction (HFrEF)...
May 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28300667/characteristics-of-coronary-artery-disease-among-patients-with-atrial-fibrillation-compared-to-patients-with-sinus-rhythm
#9
Lukas J Motloch, Sara Reda, Robert Larbig, Ariane Wolff, Karolina A Motloch, Bernhard Wernly, Christina Granitz, Michael Lichtenauer, Martin Wolny, Uta C Hoppe
BACKGROUND: With a high prevalence of coronary artery disease (CAD) among patients with atrial fibrillation (AF), CAD is one of the main risk factors for AF. However, little is known about the characteristics of CAD in AF patients, especially whether a specific anatomical distribution of coronary artery stenoses might predispose an individual to AF via atrial ischemia remains speculative. To address this issue, we evaluated the potential associations between angiographic characteristics of CAD and AF...
March 11, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28274519/regional-heterogeneity-in-the-mitral-valve%C3%A2-apparatus-in-patients-with-ischemic%C3%A2-mitral-regurgitation
#10
Feroze Mahmood, Ziyad O Knio, Lu Yeh, Rabia Amir, Robina Matyal, Azad Mashari, Robert C Gorman, Joseph H Gorman, Kamal R Khabbaz
BACKGROUND: Apical displacement of the coaptation point of the mitral valve (MV) in response to ischemic mitral regurgitation (IMR) represents remodeling of the MV apparatus. Whereas it implies chronicity, it lacks specificity in discriminating normal from a significantly remodeled MV apparatus. Regional aspects of MV remodeling have shown superior value over global remodeling in predicting recurrence after MV repair for IMR. Quite possibly, presence of specific regional changes in MV geometry that are unique to chronic IMR patients could also be used to diagnose the presence and track progression of remodeling...
March 5, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28259110/why-does-prosthetic-replacement-seemingly-have-higher-perioperative-mortality-than-valve-repair-in-ischemic-mitral-regurgitation
#11
Kerem M Vural
No abstract text is available yet for this article.
March 4, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28258847/percutaneous-edge-to-edge-mitral-valve-repair-for-the-treatment-of-acute-mitral-regurgitation-complicating-myocardial-infarction-a-single-centre-experience
#12
Marianna Adamo, Salvatore Curello, Ermanna Chiari, Claudia Fiorina, Giuliano Chizzola, Marco Magatelli, Elisa Locantore, Giovanni Cuminetti, Carlo Lombardi, Aldo Manzato, Marco Metra, Federica Ettori
BACKGROUND: Limited evidence is available about MitraClip therapy in patients with acute mitral regurgitation (MR) complicating myocardial infarction (MI). METHODS AND RESULTS: Among 80 consecutive patients undergoing MitraClip treatment, 5 (6.3%) had been admitted for acute MI complicated by severe MR. Mean age was 73±6years and 3 were males. At the time of admission they were in cardiogenic shock (80%) or pulmonary oedema (20%), with severe MR, left ventricular dysfunction and pulmonary hypertension...
May 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28238252/recommendations-for-valve-replacement-in-ischemic-mitral-regurgitation-with-compromised-ventricle
#13
Kerem M Vural
The unique features of ischemic mitral regurgitation may necessitate attention to certain points during mitral valve replacement (MVR). A few simple but practical recommendations are offered for concomitant or isolated MVR in this high-risk population which is often burdened by an extremely limited myocardial reserve.
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28235954/a-case-of-right-middle-cerebral-artery-tendonectomy-following-mitral-valve-replacement-surgery
#14
Mary C Thomas, Josser E Delgado Almandoz, Adam J Todd, Mark L Young, Jennifer L Fease, Jill Marie Scholz, Anna M Milner, Maximilian Mulder, Yasha Kayan
Following mechanical mitral valve replacement surgery, a 69-year-old woman had an ischemic stroke in the right middle cerebral artery territory. Mechanical thrombectomy showed the embolus to be a piece of chordae tendineae excised during the valve replacement surgery.
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28223050/tricuspid-regurgitation-associated-with%C3%A2-ischemic-mitral-regurgitation-characterization-evolution-after-mitral-surgery-and-value-of-tricuspid-repair
#15
José L Navia, Haytham Elgharably, Hoda Javadikasgari, Ahmed Ibrahim, Marijan Koprivanac, Ashley M Lowry, Eugene H Blackstone, Allan L Klein, A Marc Gillinov, Eric E Roselli, Lars G Svensson
BACKGROUND: Tricuspid regurgitation (TR) often accompanies ischemic mitral regurgitation and is generally assumed to be a secondary consequence of altered hemodynamics of the left-sided regurgitation. We hypothesized that it may also be a direct consequence of right-sided ischemic disease. Therefore, our objectives were to (1) characterize the nature of this TR and (2) describe its time course after mitral valve surgery for ischemic mitral regurgitation, with or without concomitant tricuspid valve repair...
February 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28222779/magnetic-resonance-imaging-for-cerebral-lesions-during-minimal-invasive-mitral-valve-surgery-study-protocol-for-a-randomized-controlled-trial
#16
Cristina Barbero, Davide Ricci, Erik Cura Stura, Augusto Pellegrini, Giovanni Marchetto, Suad ElQarra, Massimo Boffini, Roberto Passera, Maria Consuelo Valentini, Mauro Rinaldi
BACKGROUND: Recent data have highlighted a higher rate of neurological injuries in minimal invasive mitral valve surgery (MIMVS) compared with the standard sternotomy approach; therefore, the role of specific clamping techniques and perfusion strategies on the occurrence of this complication is a matter of discussion in the medical literature. The purpose of this trial is to prospectively evaluate major, minor and silent neurological events in patients undergoing right mini-thoracotomy mitral valve surgery using retrograde perfusion and an endoaortic clamp or a transthoracic clamp...
February 21, 2017: Trials
https://www.readbyqxmd.com/read/28219908/a-case-of-right-middle-cerebral-artery-tendonectomy-following-mitral-valve-replacement-surgery
#17
Mary C Thomas, Josser E Delgado Almandoz, Adam J Todd, Mark L Young, Jennifer L Fease, Jill Marie Scholz, Anna M Milner, Maximilian Mulder, Yasha Kayan
Following mechanical mitral valve replacement surgery, a 69-year-old woman had an ischemic stroke in the right middle cerebral artery territory. Mechanical thrombectomy showed the embolus to be a piece of chordae tendineae excised during the valve replacement surgery.
February 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28194283/cardiac-calcified-amorphous-tumor-of-the-mitral-valve-presenting-as-transient-ischemic-attack
#18
Mohammad Abbasi Teshnizi, Atefeh Ghorbanzadeh, Nahid Zirak, Babak Manafi, Aliasghar Moeinipour
Cardiac calcified amorphous tumors (CATs) are an extremely rare nonneoplastic intracardiac masses. They have been reported in the literature in only a few cases. Thus, the incidence, pathogenesis, and best approach to the treatment are not certain. We report a case of CATs on the atrial surface of the anterior mitral valve leaflet in a 37-year-old female who was diagnosed by histopathological examination after surgical removal.
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28190606/2016-update-to-the-american-association-for-thoracic-surgery-consensus-guidelines-ischemic-mitral-valve-regurgitation
#19
Irving L Kron, Damien J LaPar, Michael A Acker, David H Adams, Gorav Ailawadi, Steven F Bolling, Judy W Hung, D Scott Lim, Michael J Mack, Patrick T O'Gara, Michael K Parides, John D Puskas
No abstract text is available yet for this article.
May 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28164104/left-ventricle-mitral-valve-ring-size-mismatch-understanding-the-limitations-of-mitral-valve-repair-for-ischemic-mitral-regurgitation
#20
COMMENT
Christos G Mihos, Evin Yucel, Orlando Santana
No abstract text is available yet for this article.
January 2017: Annals of Translational Medicine
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