keyword
MENU ▼
Read by QxMD icon Read
search

Mitral valve

keyword
https://www.readbyqxmd.com/read/28735413/echocardiographic-and-hemodynamic-assessment-for-predicting-early-clinical-events-in-severe-acute-mitral-regurgitation
#1
Shin Watanabe, Kenneth Fish, Guillaume Bonnet, Carlos G Santos-Gallego, Lauren Leonardson, Roger J Hajjar, Kiyotake Ishikawa
The diagnostic role of echocardiographic and hemodynamic assessment in acute mitral regurgitation (AMR) remains unclear. The central question of this study was to determine if echocardiographic and hemodynamic parameters can predict early clinical events in AMR. AMR was induced by percutaneously severing the mitral valve chordae tendineae in 39 Yorkshire pigs. Immediately after AMR induction, echocardiographic and hemodynamic exams were performed, and compared between those who died and those who survived within 30-days of the procedure...
July 22, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734620/treatment-of-dogs-with-compensated-myxomatous-mitral-valve-disease-with-spironolactone-a-pilot-study
#2
M J Hezzell, A Boswood, J López-Alvarez, N Lötter, J Elliott
OBJECTIVES: Spironolactone improves outcome in dogs with advanced myxomatous mitral valve disease (MMVD). Its efficacy in preclinical MMVD is unknown. The hypothesis was the administration of spironolactone to dogs with compensated MMVD demonstrating risk factors for poorer prognosis will decrease the rate of disease progression. The aim was to provide pilot data to evaluate preliminary effects and sample size calculation for a definitive clinical trial. ANIMALS: Twenty-five client-owned dogs with MMVD with at least one of the following; left atrial to aortic ratio (LA:Ao) ≥ 1...
July 19, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28734454/patient-specific-ventricular-access-site-selection-for-the-neochord-mitral-valve-repair-procedure
#3
Andrea Colli, Eleonora Bizzotto, Erica Manzan, Laura Besola, Nicola Pradegan, Roberto Bellu, Demetrio Pittarello, Gino Gerosa
Selecting the ventricular access site on the basis of mitral valve anatomy improves the outcomes for a subgroup of patients undergoing the transapical echocardiographically guided NeoChord (NeoChord, Inc, St. Louis Park, MN) repair procedure to correct mitral regurgitation and who have a leaflet-to-annulus index lower than the recommended efficacy threshold of 1.25.
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28734437/two-pumps-for-single-ventricle-mechanical-support-for-establishment-of-biventricular-circulation
#4
Stanislav Ovroutski, Oliver Miera, Thomas Krabatsch, Felix Berger, Joachim Photiadis, Evgenii Potapov
A 31-year-old patient with a univentricular heart and double-inlet left ventricle, moderate pulmonary stenosis, and severe mitral valve regurgitation experienced irreversible heart failure after mitral valve replacement. "Biventricular" mechanical circulatory support was initiated. The systemic circulation was supported using the HeartWare ventricular assist device (HVAD) (HeartWare, Framingham, MA) pump in the usual manner. The second pump was inserted into the right atrium and connected to the pulmonary artery after closure of the pulmonary valve and atrial separation...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28734428/rupture-of-anterolateral-papillary-muscle-resulting-from-small-artery-occlusion
#5
Tomoki Sakata, Kenji Mogi, Manabu Sakurai, Anan Nomura, Masahiko Fujii, Shinichiro Shimizu, Yoshiharu Takahara
A 69-year-old man was admitted to our hospital for dyspnea and fever. Echocardiography showed a mobile mass on the anterolateral papillary muscle and severe mitral regurgitation. Coronary artery angiography showed no stenotic lesion. Infective endocarditis or cardiac tumor was suspected, and a mitral valve operation was performed. Intraoperative observation revealed a partially ruptured anterolateral papillary muscle and no evidence of infection or tumor. Pathologic examination of the resected papillary muscle showed atherosclerotic changes in small arteries and infarcted areas in different postinfarct time phases along the ruptured edge...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28734427/libman-sacks-endocarditis-due-to-systemic-lupus-erythematosus-activation-after-mitral-valve-plasty
#6
Takaaki Samura, Koichi Toda, Daisuke Yoshioka, Teruya Nakamura, Shigeru Miyagawa, Yasushi Yoshikawa, Shunsuke Saito, Keitaro Domae, Yoshiki Sawa
Libman-Sacks endocarditis is a cardiac manifestation of systemic lupus erythematosus (SLE) and antiphospholipid syndrome. We report a case of mitral valve destruction due to Libman-Sacks endocarditis, which was caused by activation of SLE, despite prompt initiation of systemic steroid therapy. The prevention of SLE activation is critically important in valve surgery for patients with SLE. To the best of our knowledge, this is the first case of repaired mitral valve destruction due to activation of SLE, which was caused by valve surgery itself...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28728865/mass-spring-models-for-the-simulation-of-mitral-valve-function-looking-for-a-trade-off-between-reliability-and-time-efficiency
#7
O A Pappalardo, F Sturla, F Onorati, G Puppini, M Selmi, G B Luciani, G Faggian, A Redaelli, E Votta
Patient-specific finite element (FE) models can assess the impact of mitral valve (MV) repair on the complex MV anatomy and function. However, FE excessive time requirements hamper their use for surgical planning; mass-spring models (MSMs) represent a more approximate approach but can provide almost real-time simulations. On this basis, we implemented MSMs of three healthy MVs from cardiac magnetic resonance (cMR) imaging to simulate the systolic MV closure, including the in vivo papillary muscles and annular kinematics, and the anisotropic and non-linear mechanical response of MV tissues...
July 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28728782/novel-nonresectional-mitral-valve-repair-another-tool-in-the-mitral-surgeon-s-armamentarium
#8
EDITORIAL
Malini Daniel, Pavan Atluri
No abstract text is available yet for this article.
June 20, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28728720/mitral-valve-repair-the-french-correction-versus-the-american-correction
#9
REVIEW
Sarah A Schubert, James H Mehaffey, Eric J Charles, Irving L Kron
Degenerative mitral valve disease causing mitral regurgitation is the most common organic valve pathology and is classified based on leaflet motion. The "French correction" mitral valve repair method restores normal valvular anatomy with extensive leaflet resection, chordal manipulation, and rigid annuloplasty. The American correction attempts to restore normal valve function through minimal leaflet resection, flexible annuloplasty, and use of artificial chordae. These differing methods of mitral valve repair reflect an evolution in principles, but both require understanding of the valve pathology and correction of leaflet prolapse and annular dilatation...
August 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28726430/-thoughts-about-valvular-abnormalities-yesterday-and-today
#10
Pavel Gregor, Hana Línková
The article deals with the problems of acquired valvular disorders. It mainly focuses on the new findings regarding ethiopathogenesis, diagnostics, evaluation and treatment, especially catheterization. In advanced countries, post-rheumatic abnormalities have almost disappeared, their current etiology has substantially changed (mitral stenosis). The earlier relatively rare degenerative changes now predominate, mainly affecting older patients (aortic stenosis). Also the treatment methods for acquired abnormalities have substantially changed - currently catheterization approaches are used more frequently in their correction...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28725332/thyrotoxic-valvulopathy-case-report-and-review-of-the-literature
#11
Keniel Pierre, Sushee Gadde, Bassam Omar, G Mustafa Awan, Christopher Malozzi
We report a 42-year-old female who was admitted for abdominal pain, and also endorsed dyspnea, fatigue and chronic palpitations. Past medical history included asthma, patent ductus arteriosus repaired in childhood and ill-defined thyroid disease. Physical examination revealed blood pressure of 136/88 mm Hg and heart rate of 149 beats per minute. Cardiovascular exam revealed an irregularly irregular rhythm, and pulmonary exam revealed mild expiratory wheezing. Abdomen was tender. Electrocardiogram revealed atrial fibrillation with rapid ventricular response which responded to intravenous diltiazem...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28724875/idarucizumab-a-quick-and-effective-antidote-administered-prior-to-coronary-artery-bypass-surgery-and-mitral-valve-plasty-in-the-case-of-a-patient-treated-with-dabigatran
#12
Andrzej J Sałacki, Tomasz Zapolski, Andrzej Wysokiński
No abstract text is available yet for this article.
July 18, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28724839/effect-of-recurrent-mitral-regurgitation-after-mitral-valve-repair-in-patients-with-degenerative-mitral-regurgitation
#13
Jung-Hwan Kim, Seung Hyun Lee, Hyun-Chel Joo, Young-Nam Youn, Kyung-Jong Yoo, Byung-Chul Chang, Sak Lee
BACKGROUND: This study investigated the consequences of recurrent mitral regurgitation (MR) after mitral valve (MV) repair in patients with degenerative MR and risk factors for recurrence.Methods and Results:From January 1990 to December 2015, 792 patients underwent MV repair due to degenerative MR. Recurrent MR was defined as moderate-to-severe MR on follow-up echocardiography. Mean follow-up duration was 8.71±5.58 years. During the follow-up period, MR recurred in 133 (16.8%) patients, and the MR recurrence-free rate at 20 years was 77...
July 20, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28724353/marfan-syndrome-and-cardiovascular-complications-results-of-a-family-investigation
#14
Simon Antoine Sarr, Siddikatou Djibrilla, Fatou Aw, Malick Bodian, Kana Babaka, Aliou Alassane Ngaidé, Momar Dioum, Serigne Abdou Ba
BACKGROUND: Cardiovascular complications in Marfan syndrome (MFS) make all its seriousness. Taking as a basis the Ghent criteria, we conducted a family screening from an index case. The objective was to describe the clinical characteristics of MFS anomalies and to detect cardiovascular complications in our patients. CASE PRESENTATION: Six subjects were evaluated. Patients had to be in the same uterine siblings of the index case or be a descendant. The objective was to search for MFS based on the diagnostic criteria of Ghent and, subsequently, detecting cardiovascular damage...
July 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28721493/modelling-of-lesions-associated-with-functional-mitral-regurgitation-in-an-ex-vivo-platform
#15
Michal Jaworek, Federico Lucherini, Claudia Romagnoni, Guido Gelpi, Monica Contino, Paolo Romitelli, Carlo Antona, Gianfranco B Fiore, Riccardo Vismara
Functional mitral regurgitation (FMR) is a complex pathology involving valvular and subvalvular structures reconfiguration, and its treatment is considered challenging. There is a lack of experimental models allowing for reliable preclinical FMR treatments' evaluation in a realistic setting. A novel approach to simulate FMR was developed and incorporated into an ex vivo passive beating heart platform. FMR was obtained by dilating the mitral annulus (MA) mainly in the antero-posterior direction and displacing the papillary muscles (PMs) apically and laterally by ad hoc designed and 3D printed dilation and displacing devices...
July 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28720119/calcified-amorphous-tumor-of-the-heart-with-mitral-annular-calcification-a-case-report
#16
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/28719311/infective-endocarditis-in-french-west-indies-a-13-year-observational-study
#17
Elisabeth Fernandes, Claude Olive, Jocelyn Inamo, François Roques, André Cabié, Patrick Hochedez
We conducted an observational study to describe the characteristics of infective endocarditis (IE) in French West Indies (FWI) and to identify variables associated with in-hospital case fatality. The records of the patients admitted for IE to the University Hospital of Martinique between 2000 and 2012 were collected using an electronic case report form. Only Duke-Li definite cases were considered for this analysis. Variables associated with in-hospital mortality were tested using univariate logistic regression analysis...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28717064/sildenafil-improves-heart-rate-variability-in-dogs-with-asymptomatic-myxomatous-mitral-valve-degeneration
#18
Prapawadee Pirintr, Nakkawee Saengklub, Vudhiporn Limprasutr, Suwanakiet Sawangkoon, Anusak Kijtawornrat
Myxomatous mitral valve degeneration (MMVD) causes an imbalance of sympathovagal activity resulted in poor cardiac outcomes. Phosphodiesterase-5 inhibitors have been revealed cardioprotective effect in patients with heart diseases. This study aimed to 1) compare the heart rate variability (HRV) between asymptomatic MMVD and healthy dogs and 2) assess long-term effects of sildenafil and enalapril on time- and frequency-domains analyzes. Thirty-four dogs with MMVD stage B1 or B2 and thirteen healthy dogs were recruited into the study...
July 17, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28712559/impact-of-percutaneous-mitral-valvuloplasty-on-left-ventricular-function-in-patients-with-mitral-stenosis-assessed-by-3d-echocardiography
#19
William Antonio M Esteves, Lucas Lodi-Junqueira, Juliana Rodrigues Soares, Guilherme Rafael Sant'Anna Athayde, Gabriela Assunção Goebel, Lucas Amorim Carvalho, Xin Zeng, Judy Hung, Timothy C Tan, Maria Carmo Pereira Nunes
BACKGROUND: The status of intrinsic left ventricular (LV) contractility in patients with isolated rheumatic mitral stenosis (MS) has been debated. The acute changes in loading conditions after percutaneous mitral valvuloplasty (PMV) may affect LV performance. We aimed to examine the acute effects of PMV on LV function and identify factors associated with LV ejection fraction (LVEF) changes, and determinants of long-term events following the procedure. METHODS: One hundred and forty-two patients who underwent PMV for symptomatic rheumatic MS (valve area of 0...
June 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28711965/efficacy-of-an-extracellular-matrix-in-systemic-loading-conditions-in-congenital-heart-surgery
#20
Adeel Ashfaq, Amit Iyengar, Oh Jin Kwon, Mohammad S Soroya, Son Nguyen, Ryan Ou, Brian Reemtsen
Extracellular matrices (ECM) are commonly used to repair congenital heart defects; however, there is a lack of literature pertaining to outcomes with ECM use in high-pressure conditions. Between 2011 and 2014, a total of 202 patients underwent congenital heart disease repair using the ECM placed in a systemic pressure condition. The operative sites included: defects in the ventricular septum, mitral valve, aortic valve, ascending aorta, and aortic arch. Patients were followed and evaluated for mortality and reoperations due to loss of ECM integrity...
July 15, 2017: Pediatric Cardiology
keyword
keyword
12195
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"