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https://www.readbyqxmd.com/read/28227933/classification-of-severity-of-mitral-regurgitation-patients-using-multifractal-analysis
#1
Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Soh Cheong Boon, Erry Gunawan, Ling Lieng Hsi
Owing to its efficiency and cost effectiveness, auscultation using a stethoscope is the primary diagnosis method preferred by most medical examiners for cardiovascular disease. Phonocardiography (PCG) is the next level of auscultation and an effective analysis technique in cardiology. This paper presents a method to quantify Mitral Regurgitation (MR) using PCG. MR is one of the most common cardiovascular diseases associated with a defect in mitral valve. We analyzed the multifractal nature of heart sounds with murmur followed by classification and clustering using Hurst exponents...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226688/mitral-valve-annulus-localization-in-3d-echocardiography
#2
Abhishek Tiwari, Kedar A Patwardhan, Abhishek Tiwari, Kedar A Patwardhan, Kedar A Patwardhan, Abhishek Tiwari
The Mitral Valve is a structure on the left side of the human heart that regulates the flow of oxygenated blood into the Left Ventricle and also helps maintain the pressure within the Left Ventricle when the blood gets pumped to the rest of the body from the Left Ventricle. Pathology of the Mitral Valve often manifests through structural changes in the anatomy. Assessment of Mitral Valve pathology as well as determination of specific interventions require quantification of various structures of the Mitral Valve and one of these structures of interest is the Mitral Valve annulus...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226685/tracking-of-the-anterior-mitral-leaflet-in-echocardiographic-sequences-using-active-contours
#3
Malik Saad Sultan, Nelson Martins, Diana Veiga, Manuel Joao Ferreira, Miguel Tavares Coimbra, Malik Saad Sultan, Nelson Martins, Diana Veiga, Manuel Joao Ferreira, Miguel Tavares Coimbra, Diana Veiga, Nelson Martins, Malik Saad Sultan, Miguel Tavares Coimbra, Manuel Joao Ferreira
Echocardiography assessment of cardiac valves plays a vital role in the diagnosis of rheumatic heart disease. In the vast majority of cases, the mitral valve gets affected, leading to the thickening of its leaflets that may result in the fusion of their tips. This changes the appearance and reduces the mobility of the leaflets, which also reduce the heart efficiency. Quantifying such parameters provides diagnostic insight. To achieve that, the first step is to identify and then track fast moving leaflets. This work is focused on Anterior Mitral Leaflet (AML) tracking...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225836/analysis-of-immune-cell-populations-in-atrial-myocardium-of-patients-with-atrial-fibrillation-or-sinus-rhythm
#4
Natalia Smorodinova, Martin Bláha, Vojtěch Melenovský, Karolína Rozsívalová, Jaromír Přidal, Mária Ďurišová, Jan Pirk, Josef Kautzner, Tomáš Kučera
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia and despite obvious clinical importance remains its pathogenesis only partially explained. A relation between inflammation and AF has been suggested by findings of increased inflammatory markers in AF patients. OBJECTIVE: The goal of this study was to characterize morphologically and functionally CD45-positive inflammatory cell populations in atrial myocardium of patients with AF as compared to sinus rhythm (SR)...
2017: PloS One
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
#5
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
#6
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/28222495/reversible-thrombotic-mitral-valve-stenosis-after-transcatheter-mitral-valve-replacement-tmvr-is-life-long-anticoagulation-therapy-necessary
#7
Vladan Hudec, Martin Bena, Panagiotis Artemiou, Ivo Gasparovic, Michal Hulman
We describe a case of reversible thrombotic mitral valve stenosis following a valve-in-ring transcatheter mitral valve replacement. Life-long oral anticoagulation in patients who underwent transcatheter mitral valve replacement might be beneficial.
February 21, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28219908/a-case-of-right-middle-cerebral-artery-tendonectomy-following-mitral-valve-replacement-surgery
#8
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/28219563/repeated-prosthetic-mitral-valve-thrombosis-in-fluke%C3%A2-infection-induced-hypereosinophilic-syndrome
#9
Yiran Zhang, Liang Ma
A 43-year-old female patient with mitral valve stenosis and hypereosinophilia on admission received mechanical mitral valve replacement. During the 2 years after the first surgery, the patient underwent two mitral valve revision operations for repeated prosthetic mitral valve thrombosis. During the 2-year period, the patient's absolute eosinophil count was found elevated repeatedly. Finally, fluke antibody detection revealed fluke infection and, after praziquantel treatment, a normal level of absolute eosinophil count has been maintained and recurrent thrombosis has not occurred for 18 months...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217516/long-term-cardiac-valvulopathy-safety-of-cabergoline-in-prolactinoma
#10
Shruti Khare, Anurag R Lila, Rishikesh Patil, Milind Phadke, Prafulla Kerkar, Tushar Bandgar, Nalini S Shah
BACKGROUND: Clinical relevance of association of cabergoline use for hyperprolactinemia and cardiac valvulopathy remains unclear. OBJECTIVE: The aim of the study was to determine the prevalence of valvular heart abnormalities in patients taking cabergoline for the treatment of prolactinoma and to explore any associations with the cumulative dose of drug used. DESIGN: A cross-sectional echocardiographic study was performed in patients who were receiving cabergoline therapy for prolactinoma...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28217062/anesthetic-management-of-a-case-of-gilbert-s-syndrome-for-mitral-and-aortic-valve-replacement-role-of-transesophageal-echocardiography
#11
P S Nagaraja, Naveen G Singh, S Subash, N Manjunatha, C G Prabhushankar, N Sathish
Gilbert's syndrome (GS) is an autosomal inherited disorder characterized by relative deficiency of glucuronyl transferase and poor uptake of unconjugated bilirubin by hepatocytes. Cardiac surgery on cardiopulmonary bypass (CPB) in these patients triggers further hepatic dysfunction. Transesophageal echocardiography (TEE) and Doppler assessment of hepatic vein help in assessing hepatic blood flow (HBF) during cardiac surgery. Here, we discuss anesthetic management and role of TEE in maintaining HBF perioperatively in a 25-year-old male patient with GS undergoing double valve replacement with tricuspid valve plasty...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216472/effects-of-atrial-fibrillation-and-heart-rate-on-percutaneous-mitral-valve-repair-with-mitraclip-results-from-the-transcatheter-mitral-valve-interventions-trami-registry
#12
Alexander Jabs, Ralph S von Bardeleben, Peter Boekstegers, Miriam Puls, Edith Lubos, Raffi Bekeredjian, Taoufik Ouarrak, Björn Plicht, Holger Eggebrecht, Georg Nickenig, Christian Butter, Rainer Hoffmann, Jochen Senges, Ulrich Hink
AIMS: In patients undergoing percutaneous edge-to-edge mitral valve repair for mitral valve regurgitation (MR), our aim was to evaluate acute and follow-up differences with pre-existing sinus rhythm (SR) or atrial fibrillation (AF), as well as comparisons stratified by baseline heart rate. METHODS AND RESULTS: Seven hundred and sixty patients who underwent a MitraClip procedure were prospectively enrolled in the TRAnscatheter Mitral valve Interventions (TRAMI) registry, and stratified according to baseline heart rhythm and heart rate with a cut-off value of 70 beats per minute...
February 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28216218/transeptal-anchored-vascular-plug-closure-of-mitral-valve-perforation
#13
Elena K Grant, Dennis W Kim, William L Border, Stamatios Lerakis, Vasilis Babaliaros, Robert N Vincent
No abstract text is available yet for this article.
February 9, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28214266/anatomical-features-of-acute-mitral-valve-repair-dysfunction-additional-value-of-three-dimensional-echocardiography
#14
REVIEW
Salomé Derkx, Virginia Nguyen, Claire Cimadevilla, Constance Verdonk, Laurent Lepage, Richard Raffoul, Patrick Nataf, Alec Vahanian, David Messika-Zeitoun
Recurrence of mitral regurgitation after mitral valve repair is correlated with unfavourable left ventricular remodelling and poor outcome. This pictorial review describes the echocardiographic features of three types of acute mitral valve repair dysfunction, and the additional value of three-dimensional echocardiography.
February 14, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28214035/transesophageal-echocardiography-in-swine-establishment-of-a-baseline
#15
Katharina Huenges, Saskia Pokorny, Rouven Berndt, Jochen Cremer, Georg Lutter
The porcine model is a commonly used animal model in cardiovascular research. Along with new innovative operative techniques, choice of the optimal imaging technique is crucial. Transesophageal echocardiography (TEE) is a reliable imaging tool is highly important in a large number of experimental evaluations. But so far, TEE data for swine are limited, and few standard values have been established for the porcine model. The experience and baseline results for TEE in 45 swine are presented in this study. A full TEE examination was conducted in 45 German landrace or German large white swine, with an average body weight of 49 ± 3 kg, before experimental off-pump mitral valved stent implantation...
February 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28214003/lipoma-of-the-mitral-valve
#16
William C Roberts, Paul A Grayburn, Baron L Hamman
Described herein is a 67-year-old morbidly obese man who had a lipoma excised from his posterior mitral leaflet after it was found by echocardiogram. Findings in 6 other previously reported cases are reviewed.
January 6, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#17
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
February 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28209176/infective-endocarditis-causing-mitral-valve-stenosis-a-rare-but-deadly-complication-a-case-report
#18
Michael A Hart, Gautam R Shroff
BACKGROUND: Infective endocarditis rarely causes mitral valve stenosis. When present, it has the potential to cause severe hemodynamic decompensation and death. There are only 15 reported cases in the literature of mitral prosthetic valve bacterial endocarditis causing stenosis by obstruction. This case is even more unusual due to the mechanism by which functional mitral stenosis occurred. CASE PRESENTATION: We report a case of a 23-year-old white woman with a history of intravenous drug abuse who presented with acute heart failure...
February 17, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28208930/precautionary-measures-for-successful-open-heart-surgery-in-g6pd-deficient-patient-a-case-report
#19
Rupesh Kumar
Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency is among the most common enzymatic disorders of red blood cells. Cardiac surgeries on this group of individuals are associated with an additional risk in terms of impaired oxygenation, prolonged ventilation and increased risk of haemolysis. These patients have a very low threshold for haemolysis due to oxidative stress. Many commonly used drugs also predispose the individual for haemolysis when they are subjected to surgery. Here we present a known case of G6PD deficient patient with symptoms of breathlessness for the last nine years who was taken for surgery with pre-planned precautionary measures to avoid unnecessary haemolysis...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208915/an-unusual-occurrence-of-methicillin-resistant-staphylococcal-endocarditis-with-vancomycin-creep-phenomenon-a-therapeutic-challenge
#20
S Sneha, Shanthan Venishetty, Shubha Seshadri, M Sudhakar Rao, Chiranjay Mukhopadhyay
Infective endocarditis by Methicillin Resistant Staphylococcus aureus (MRSA) bacteraemia is a common association and carries a high mortality. However, rising Minimum Inhibitory Concentrations (MICs) for vancomycin amongst MRSA strains is an emerging threat which carries poor prognosis and higher mortality. Here, we report a case of 41-year-old young non-addict gentleman presenting with fever of 3 days duration following recovery from an acute kidney injury necessitating haemodialysis. Systemic examination revealed signs of mitral regurgitation and left sided cerebellar signs...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
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