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https://www.readbyqxmd.com/read/29774982/transcatheter-mitral-valve-implantation-in-rigid-mitral-annuloplasty-rings-potential-differences-between-complete-and-incomplete-rings
#1
Daisuke Hachinohe, Azeem Latib, Matteo Montorfano, Antonio Colombo
Transcatheter mitral valve implantation (TMVI) has been performed in high-risk and inoperable patients for degenerated mitral bioprostheses (TMVIinV) and failed annuloplasty rings (TMVIinR). TMVIinR is more challenging compared to TMVIinV because of the differences in dimensions, shapes, and contours between rings and valves. In this report, we present two clinical cases of TMVIinR that were treated by trans-septal implantation of a balloon-expandable prosthesis. In TMVI cases with an incomplete ring, the ring will be stretched out toward its anterior and commissural side, and the open side of the ring will increase in width...
May 18, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29774601/the-impact-of-mitral-stenosis-on-outcomes-of-aortic-valve-stenosis-patient-undergoing-surgical-aortic-valve-replacement-or-transcatheter-aortic-valve-replacement
#2
Yasser Al-Khadra, Fahed Darmoch, Motaz Baibars, Amir Kaki, Zaher Fanari, M Chadi Alraies
BACKGROUND: The concomitant presence of mitral stenosis (MS) in the setting of symptomatic aortic stenosis represent a clinical challenge. Little is known regarding the outcome of mitral stenosis (MS) patients undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR). Therefore, we sought to study the outcome of MS patients undergoing aortic valve replacement (AVR). METHOD: Using weighted data from the National Inpatient Sample (NIS) database between 2011 and 2014, we identified patients who were diagnosed with MS...
May 17, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29774187/multimodality-imaging-for-the-quantitative-assessment-of-mitral-regurgitation
#3
REVIEW
Pei G Chew, Katrina Bounford, Sven Plein, Dominik Schlosshan, John P Greenwood
The natural history of mitral regurgitation (MR) results in significant morbidity and mortality. Innovations in non-invasive imaging have provided new insights into the pathophysiology and quantification of MR, in addition to early detection of left ventricular (LV) dysfunction and prognostic assessment in asymptomatic patients. Transthoracic (TTE) and transesophageal (TOE) echocardiography are the mainstay for diagnosis, assessment and serial surveillance. However, the advance from 2D to 3D imaging leads to improved assessment and characterization of mitral valve (MV) disease...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29773412/athlete-s-heart-is-the-morganroth-hypothesis-obsolete
#4
Mark J Haykowsky, T Jake Samuel, Michael D Nelson, Andre La Gerche
In 1975, Morganroth and colleagues reported that the increased left ventricular (LV) mass in highly trained endurance athletes versus nonathletes was primarily due to increased end-diastolic volume while the increased LV mass in resistance trained athletes was solely due to an increased LV wall thickness. Based on the divergent remodelling patterns observed, Morganroth and colleagues hypothesised that the increased "volume" load during endurance exercise may be similar to that which occurs in patients with mitral or aortic regurgitation while the "pressure" load associated with performing a Valsalva manoeuvre (VM) during resistance exercise may mimic the stress imposed on the heart by systemic hypertension or aortic stenosis...
May 1, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29773243/impact-of-diabetes-and-increasing-body-mass-index-category-on-left-ventricular-systolic-and-diastolic-function
#5
Arnold C T Ng, Francesca Prevedello, Giulia Dolci, Cornelis J Roos, Roxana Djaberi, Matteo Bertini, See Hooi Ewe, Christine Allman, Dominic Y Leung, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
BACKGROUND: Diabetes and obesity are both worldwide growing epidemics, and both are independently associated with increased risk for heart failure and death. The aim of this study was to examine the additive detrimental effect of both diabetes and increasing body mass index (BMI) category on left ventricular (LV) myocardial systolic and diastolic function. METHODS: The present retrospective multicenter study included 653 patients (337 with type 2 diabetes and 316 without diabetes) of increasing BMI category...
May 15, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29772580/mitral-valve-stenosis-still-a-clinical-challenge
#6
Andrew Xanthopoulos, Randall C Starling, Filippos Triposkiadis
No abstract text is available yet for this article.
May 17, 2018: Cardiology
https://www.readbyqxmd.com/read/29771478/the-reverse-remodeling-response-to-sacubitril-valsartan-therapy-in-heart-failure-with-reduced-ejection-fraction
#7
Pieter Martens, Hanne Beliën, Matthias Dupont, Pieter Vandervoort, Wilfried Mullens
BACKGROUND: Major classes of medical therapy for heart failure with reduced ejection fraction (HFrEF) induce reverse remodeling. The revere remodeling response to sacubitril/valsartan remains unstudied. METHODS: We performed a single-center, prospective assessor-blinded study to determine the reverse remodeling response of sacubitril/valsartan-therapy in HFrEF-patients with a class I-indication (New York heart Association [NYHA]-class II-IV, Left ventricular ejection fraction [LVEF]<35%, optimal dose with Renin-Angiotensin-System-Blocker [RAS-blocker])...
May 17, 2018: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29770888/mitral-valve-interventions-in-structural-heart-disease
#8
REVIEW
Matteo Saccocci, Maurizio Taramasso, Francesco Maisano
PURPOSE OF REVIEW: Analyze the current state of the art and the future perspectives of mitral interventions in clinical setting. RECENT FINDINGS: A systematic and critical review of the new mitral percutaneous therapies and imaging technologies is the basis to adopt the right treatment for each patient according to specific valve dysfunction and clinical presentation, waiting for definitive guidelines. While surgical mitral repair will remain the gold standard for low-risk healthy patients with degenerative mitral regurgitation (DMR), transcatheter mitral valve repair is becoming first line therapy in high risk patients with functional mitral regurgitation (FMR)...
May 17, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29770299/regenerative-medicine-therapy-for-single-ventricle-congenital-heart-disease
#9
REVIEW
Chetan Ambastha, Gregory J Bittle, David Morales, Nathaniel Parchment, Progyaparamita Saha, Rachana Mishra, Sudhish Sharma, Alexander Vasilenko, Muthukumar Gunasekaran, Manal T Al-Suqi, Deqiang Li, Peixin Yang, Sunjay Kaushal
One of the most complex forms of congenital heart disease (CHD) involving single ventricle physiology is hypoplastic left heart syndrome (HLHS), characterized by underdevelopment of the left ventricle (LV), mitral and aortic valves, and narrowing of the ascending aorta. The underdeveloped LV is incapable of providing long-term systemic flow, and if left untreated, the condition is fatal. Current treatment for this condition consists of three consecutive staged palliative operations: the first is conducted within the first few weeks of birth, the second between 4 to 6 months, and the third and final surgery within the first 4 years...
April 2018: Translational Pediatrics
https://www.readbyqxmd.com/read/29769664/parallel-odor-processing-by-mitral-and-middle-tufted-cells-in-the-olfactory-bulb
#10
Francesco Cavarretta, Shawn D Burton, Kei M Igarashi, Gordon M Shepherd, Michael L Hines, Michele Migliore
The olfactory bulb (OB) transforms sensory input into spatially and temporally organized patterns of activity in principal mitral (MC) and middle tufted (mTC) cells. Thus far, the mechanisms underlying odor representations in the OB have been mainly investigated in MCs. However, experimental findings suggest that MC and mTC may encode parallel and complementary odor representations. We have analyzed the functional roles of these pathways by using a morphologically and physiologically realistic three-dimensional model to explore the MC and mTC microcircuits in the glomerular layer and deeper plexiform layer...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769510/surgical-management-of-a-critical-ischemic-mitral-regurgitation-patient
#11
S A Sunny, S Moinuddin, A B Adhikary, M A Hossain
Functional ischemic mitral regurgitation is strongly associated with poor outcomes in patient with coronary artery disease. The best management for mitral regurgitation at the time of coronary revascularization remains controversial. We report, a case of 58 years-old men admitted to GKNM hospital, Coimbatore, Tamil Nadu, India with chest pain and respiratory distress for last 6 hours during my fellowship training in that hospital. ECG showed acute antero-septal MI. The transthoracic echocardiogram revealed severe left ventricular dysfunction with moderate mitral regurgitation...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29765433/left-ventricular-structural-and-functional-changes-evaluated-by-echocardiography-and-two-dimensional-strain-in-patients-with-sickle-cell-disease
#12
Ricardo Bedirian, Andrea Ribeiro Soares, Maria Christina Maioli, Jussara Fonseca Fernandes de Medeiros, Agnaldo José Lopes, Marcia Bueno Castier
Introduction: Patients with sickle cell disease have increased left ventricular size, which is not usually accompanied by changes in systolic function indexes. We assessed echocardiographic abnormalities present in patients with sickle cell anemia (SCA) and compared echocardiographic parameters to other sickle cell diseases (OSCD). Material and methods: A blind cross-sectional study with 60 patients with SCA and 16 patients with OSCD who underwent transthoracic echocardiography was performed...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29762937/endoaneurysmorrhaphy-for-a-giant-inferobasal-left-ventricular-aneurysm-restoring-mitral-function
#13
Bedri Ramadani, Paulus Schurr, Stefan Möhlenkamp, Artur Lichtenberg
Over the years, the surgery of ventricular postinfarction aneurysm has evolved from linear resection to endoaneurysmorrhaphy using a patch. Technically, several aims that include the restoration of ventricular shape and function, exclusion of dead space, minimization of the risk of thrombus formation and restoration of valve function are pursued. Herein is reported the case of a 58-year-old male with a giant inferobasal aneurysm involving the mitral valve apparatus who underwent successful endoaneurysmorrhaphy...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762933/ross-procedure-following-a-dislodged-transcatheter-aortic-valve-replacement
#14
Samuel R Schnittman, Aaron J Weiss, Robin Varghese, Paul Stelzer
A 36-year-old pregnant woman with a history of rheumatic heart disease and prior aortic valve replacement and mitral valve repair presented to an outside hospital with severe aortic stenosis. The patient had a cardiac arrest upon labor induction and underwent a transcatheter aortic valve replacement (TAVR), which dislodged two days later. Five months later, the patient underwent removal of the dislodged TAVR and a Ross procedure at the authors' institution. The patient was stable upon discharge, with minimal aortic and pulmonary regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762931/mitraclip-technique-five-years-after-alfieri-stitch-mitral-valve-repair
#15
Ivaylo R Tonchev, Anna Turyan, Ronen Beeri, Mony Shuvy
The case is described of a successful MitraClip procedure performed on an 88-year-old patient with severe mitral regurgitation (MR), five years after she had undergone mitral valve repair using the Alfieri surgical procedure. It is suggested that the MitraClip procedure is an option in patients with severe MR persisting after the Alfieri procedure. Video 1: Transesophageal echocardiography before the MitraClip procedure. Severe mitral regurgitation with preserved left ventricular systolic function. The main regurgitant jet originates from the medial commissure...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762929/trileaflet-mitral-valve-treated-with-the-mitraclip%C3%A2-system
#16
Miguel Rodríguez-Santamarta, Rodrigo Estévez-Loureiro, Tomás Benito-González, Javier Gualis, Carmen Garrote, Armando Pérez de Prado, Felipe Fernández-Vázquez
A 79-year-old woman with a history of ischemic dilated cardiomyopathy, severely depressed left ventricular ejection fraction and significant mitral regurgitation (MR) was admitted to the authors´ institution for percutaneous mitral valve repair. Transesophageal echocardiography (TEE) revealed the presence of a posterior mitral cleft at the P2 level, causing a trileaflet mitral valve that contributed significantly to the regurgitant jet. The procedure was performed under general anesthesia and guided by real-time three-dimensional TEE...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762928/early-thrombosis-of-a-mitral-annuloplasty-ring-in-a-patient-with-mthfr-and-factor-v-leiden-mutations
#17
Sinan Cerşit, Emrah Bayam, Sabahattin Gündüz, Mehmet Özkan
Mitral annuloplasty ring thrombosis is an extremely infrequent pathology, for which no evidence-based antithrombotic management has yet been described. Herein is presented a case of heterozygous Factor V Leiden (FVL) and hyperhomocysteinemia with homozygous methylenetetrahydrofolate reductase (MTHFR) mutations that caused early thrombosis of the mitral annuloplasty ring. The clinical management and antithrombotic treatment of the patient, and the implications of hyperhomocysteinemia, are discussed. Video 1: Mobile 9-mm thrombus of mitral annuloplasty ring on two-dimensional (2D) transesophageal echocardiography...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762926/genetic-complexity-of-mitral-valve-prolapse-revealed-by-clinical-and-genetic-evaluation-of-a-large-family
#18
Gloria T Haskell, Brian C Jensen, Cecile Skrzynia, Thelsa Pulikkotil, Christian R Tilley, Yurong Lu, Daniel S Marchuk, Leigh Ann Samsa, Kirk C Wilhelmsen, Ethan Lange, Cam Patterson, James P Evans, Jonathan S Berg
BACKGROUND: A genetic component to familial mitral valve prolapse (MVP) has been proposed for decades. Despite this, very few genes have been linked to MVP. Herein is described a four-generation pedigree with numerous individuals affected with severe MVP, some at strikingly young ages. METHODS: A detailed clinical evaluation performed on all affected family members demonstrated a spectrum of MVP morphologies and associated phenotypes. RESULTS: Linkage analysis failed to identify strong candidate loci, but revealed significant regions, which were investigated further using whole-exome sequencing of one of the severely affected family members...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762925/association-between-myxomatous-mitral-valve-disease-and-skeletal-back-abnormalities
#19
Alireza Movahed, David Majdalany, Marc Gillinov, William Schiavone
BACKGROUND: Myxomatous mitral valve disease (MMVD) is one of the most prevalent valvular heart diseases, while back pain, neck pain and upper-extremity numbness are some of the most common complaints in outpatient settings. Decreased thoracic kyphosis (straight back) is a known cause of hastening back or neck problems, radiculopathy, or even myelopathy. The study aim was to examine the relationship between MMVD, straight back, and the need for cervical fusion. METHODS: In this single-center retrospective study, patients who underwent mitral valve repair or replacement due to MMVD (cases) based on age, gender and body mass index (BMI), were matched with patients who underwent coronary artery bypass grafting (CABG) surgery and had no history of mitral valve disease (controls)...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762924/early-improvement-in-mitral-regurgitation-after-cardiac-resynchronization-therapy-in-cardiomyopathy-patients
#20
Hakimeh Sadeghian, Masoumeh Lotfi-Tokaldany, Mahdi Montazeri, Ali Kazemi Saeed, Mohammad Sahebjam, Akram Sardari, Gita Ejmalian
BACKGROUND: The study aim was to investigate factors affecting the improvement of mitral regurgitation (MR) severity within 48 hours after cardiac resynchronization therapy (CRT) in patients with cardiomyopathy. METHODS: Sixty-nine cardiomyopathy patients (48 males, 21 females; mean age 59.12 ± 9.66 years) in NYHA functional class ≥III, with left ventricular ejection fraction (LVEF) ≤35%, and QRS duration >120 ms, with MR ≥moderate, were included in the study...
September 2017: Journal of Heart Valve Disease
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