keyword
MENU ▼
Read by QxMD icon Read
search

valves

keyword
https://www.readbyqxmd.com/read/29041004/impact-of-beta-blockade-on-cardiac-events-in-patients-with-chronic-severe-nonischemic-mitral-regurgitation
#1
Phyllis G Supino, Ofek Y Hai, Abhishek Sharma, Joshua Lampert, Clare Hochreiter, Edmund M Herrold, Jeffrey S Borer
OBJECTIVES: The aim of this study was to examine the impact of beta-blockade on cardiac events among patients with initially asymptomatic chronic severe nonischemic mitral valve regurgitation (MR). METHODS: Data from 52 consecutive patients in our prospective natural history study of isolated chronic severe nonischemic MR were assessed post hoc over 19 years to examine the relation of chronic beta-blockade use to subsequent cardiac events (death or indications for mitral valve surgery, MVS)...
October 18, 2017: Cardiology
https://www.readbyqxmd.com/read/29040517/filamin-a-mitral-valve-disease-prolapse-dystrophy-or-dysplasia
#2
Gaetano Thiene, Cristina Basso
No abstract text is available yet for this article.
October 12, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29040507/aortic-valve-replacement-improves-survival-in-severe-aortic-stenosis-with-gradient-area-mismatch
#3
Yujing Mo, Guy Van Camp, Giuseppe Di Gioia, Emanuele Barbato, Tomas Ondrus, Filip Casselman, Marc Vanderheyden, Bernard De Bruyne, Jozef Bartunek, Martin Penicka
OBJECTIVES: To investigate whether and in which patients with catheter-derived low pressure gradient (PG, <40 mmHg) severe (aortic valve area ≤ 1 cm2) aortic stenosis and preserved left ventricular ejection fraction, early aortic valve replacement (AVR) might improve survival. METHODS: We investigated a total of 506 consecutive patients (age 75 ± 9 years, 58% men) with either moderate aortic stenosis (MAS) or severe aortic stenosis (SAS) and preserved left ventricular ejection fraction (≥50%) as defined at catheterization...
October 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29040438/geometric-predictors-of-left-ventricular-outflow-tract-obstruction-in-patients-with-hypertrophic-cardiomyopathy-a-3d-computed-tomography-analysis
#4
Yunsun Song, Dong Hyun Yang, Bríain Ó Hartaigh, Se Jin Cho, Joon-Won Kang, Young-Hak Kim, Joon Bum Kim, Dae-Hee Kim, Jong-Min Song, Duk-Hyun Kang, Jae-Kwan Song, Tae-Hwan Lim
Aims: To establish geometric predictors of left ventricular outflow tract obstruction (LVOTO) in hypertrophic cardiomyopathy (HCM) patients by use of cardiac computed tomography (CT). Methods and results: A total of 141 consecutive patients with HCM who underwent cardiac CT comprised the analytic sample. The degree, pattern, and extent of left ventricular (LV) hypertrophy were evaluated using 3D CT. Abnormality of papillary muscle (PM), mitral valve, and aorto-mitral angle were evaluated quantitatively...
October 11, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29040413/bilateral-cavitary-multidrug-or-extensively-drug-resistant-tuberculosis-role-of-surgery
#5
Galina Yu Marfina, Kirill B Vladimirov, Armen O Avetisian, Anna A Starshinova, Grigorii G Kudriashov, Evgenii G Sokolovich, Piotr K Yablonskii
OBJECTIVES: Cavitary disease and bilateral lesions are among the risk factors for poor outcome of pulmonary tuberculosis (TB). Our aim was to explore the value and limits of surgery in patients with advanced TB. METHODS: A retrospective study of 57 consecutive patients who underwent thoracic surgery for culture-positive bilateral cavitary pulmonary TB was performed. Forty-four (77.2%) patients were men and 13 (22.8%) patients were women; their ages were in the range of 18-61 years...
October 10, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29040411/handoc-a-handy-score-to-determine-the-need-for-echocardiography-in-non-beta-hemolytic-streptococcal-bacteremia
#6
Torgny Sunnerhagen, Amanda Törnell, Maria Vikbrant, Bo Nilson, Magnus Rasmussen
Background: Non-beta-hemolytic streptococci (NBHS) are a common cause of infective endocarditis (IE). Echocardiography is used to diagnose IE, but it is not known which patients with NBHS bacteremia should undergo echocardiography. Method: Medical records of patients with NBHS bacteremia in southern Sweden from 2012-2014 were studied retrospectively. The patients were divided into two cohorts. In the first, correlations between the reported data and IE were studied...
October 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29040269/elevated-blood-pressure-and-risk-of-mitral-regurgitation-a-longitudinal-cohort-study-of-5-5-million-united-kingdom-adults
#7
Kazem Rahimi, Hamid Mohseni, Catherine M Otto, Nathalie Conrad, Jenny Tran, Milad Nazarzadeh, Mark Woodward, Terence Dwyer, Stephen MacMahon
BACKGROUND: Mitral regurgitation in people without prior cardiac disease is considered a degenerative disease with no established risk factors for its prevention. We aimed to test the hypothesis that elevated systolic blood pressure (SBP) across its usual spectrum is associated with higher risk of mitral regurgitation. METHODS AND FINDINGS: We used linked electronic health records from the United Kingdom Clinical Practice Research Datalink (CPRD) from 1 January 1990 to 31 December 2015...
October 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29040196/carcinoid-syndrome-complicating-a-pancreatic-neuroendocrine-tumor-a-case-report
#8
James N Gerson, Ronald M Witteles, Daniel T Chang, Ramin E Beygui, Andrei H Iagaru, Pamela L Kunz
Neuroendocrine tumors (NETs) comprise a heterogeneous group of neoplasms. These tumors can produce a wide variety of hormones that can lead to syndromes of hormone excess, such as carcinoid syndrome. We present the case of a 47-year-old man who presented with right upper quadrant abdominal pain and emesis. He was found to have metastatic pancreatic NET and was treated with systemic chemotherapy. He subsequently developed dyspnea on exertion and was found to have severe right-sided heart disease secondary to elevated levels of serum serotonin...
November 2017: Pancreas
https://www.readbyqxmd.com/read/29040038/ferumoxytol-enhanced-mr-angiography-for-vascular-access-mapping-before-transcatheter-aortic-valve-replacement-in-patients-with-renal-impairment-a-step-toward-patient-specific-care
#9
Kim-Lien Nguyen, John M Moriarty, Adam N Plotnik, Olcay Aksoy, Takegawa Yoshida, Richard J Shemin, William M Suh, J Paul Finn
Purpose To assess the technical feasibility of the use of ferumoxytol-enhanced (FE) magnetic resonance (MR) angiography for vascular mapping before transcatheter aortic valve replacement in patients with renal impairment. Materials and Methods This was an institutional review board-approved and HIPAA-compliant study. FE MR angiography was performed at 3.0 T or 1.5 T. Unenhanced computed tomographic (CT) images were used to overlay vascular calcification on FE MR angiographic images as composite fused three-dimensional data...
October 16, 2017: Radiology
https://www.readbyqxmd.com/read/29040026/a-comparison-of-the-success-rates-of-endoscopic-assisted-probing-in-the-treatment-of-membranous-congenital-nasolacrimal-duct-obstruction-between-younger-and-older-children-and-its-correlation-with-the-thickness-of-the-membrane-at-the-valve-of-hasner
#10
Nishi Gupta, Chawla Neeraj, Bansal Smriti, Das Sima
Congenital nasolacrimal duct obstruction (CNLDO) remains the most common cause of epiphora in infants. This retrospective study compares the success rate of nasal endoscopic-assisted probing between younger (3 years and below) and older (above 3 years) children with membranous CNLDO and its correlation with the thickness of the membrane at the valve of Hasner. Case records of a total of 38 eyes in 34 children with membranous CNLDO who underwent endoscopic nasolacrimal duct probing and irrigation under general anesthesia were analyzed...
October 17, 2017: Orbit
https://www.readbyqxmd.com/read/29036978/-clinical-features-and-surgical-treatment-effect-of-patients-with-cardiac-cavernous-hemangioma
#11
Q L Yang, B Tang, X H Zhou, J P Wang, H Y Wang, S Y Wang
Objective: To investigate the clinical features and surgical treatment effect of patients with cardiac cavernous hemangioma. Methods: Clinical data of 9 patients (5 male, aged from 4 to 53 years old) with cardiac cavernous hemangioma, who underwent surgical treatment from November 2002 to March 2015 and the diagnosis of cardiac cavernous hemangioma was confirmed by postoperative histological examination, were retrospectively analyzed. Effects of surgical treatment were analyzed. Results: Four patients were asymptomatic (heart murmur presented in 3 patients during physical examination)...
September 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29036977/-safety-and-feasibility-of-sheathless-transfemoral-aortic-valve-implantation
#12
H J Pei, S Y Teng, T Luo, Y J Wu, Y J Yang, S B Qiao, B Xu, R L Gao
Objective: To investigate the safety and feasibility of sheathless transfemoral aortic valve replacement (TAVR). Methods: In this prospective study, we enrolled 23 patients with severe aortic stenosis (AS) who were inoperable or at high-risk for surgical aortic valve replacement operation in Fuwai hospital From September 2012 to June 2015. Multislice spiral CT and angiography of femoral artery showed that all patients had minimal femoral artery diameters (<6.5 mm) and severe calcification which was not suitable for transfemoral TAVR through sheath...
September 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29036953/-a-clinical-analysis-of-six-patients-with-brucella-endocarditis-and-literature-review
#13
L Luo, B T Zhou, H L Wang, H T Dou, T S Li
Objective: To analyze the epidemiology and clinical characteristics of patients with Brucella endocarditis in order to improve the understanding and treatment of Brucella endocarditis. Methods: The clinical data including demographic characteristics, clinical features, laboratory data, echocardiography, treatment and clinical outcome of 6 patients with Brucella endocarditis were collected and analyzed. Results: In our database consisting of 211 brucellosis patients with positive blood culture, 6 patients (2...
October 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29036717/evaluation-of-occupational-radiation-dose-in-transcatheter-aortic-valve-implantation
#14
Anette Aarsnes, Gry Dahle, Erik Fosse, Kjell Arne Rein, Lars Aaberge, Anne Catrine T Martinsen
Occupational doses during fluoroscopy in interventional procedures vary largely (Kim et al. (Occupational radiation doses to operators performing cardiac catheterization procedures. Health Phys. 2008;94:211-227)). In transcatheter aortic valve implantation, the operators' positions and use of radiation shielding are particularly related to the entry choice on the patient's heart. This study evaluates how occupational doses depend on operator positioning during transfemoral and transaortal access. Occupational dosimetric readings were collected with electronic dosemeters on two cardiothoracic surgeons and one cardiologist during 31 procedures...
September 23, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29035864/redescription-of-the-nematode-parasites-of-lizards-strongyluris-oscari-travassos-1923-heterakidae-from-brazil-and-pharyngodon-mamillatus-linstow-1897-pharyngodonidae-from-egypt
#15
Felipe B Pereira, José L Luque, Luiz E R Tavares
Strongyluris oscari Travassos, 1923, parasite of Topidurus torquatus (Wied-Neuwied, 1820) (Tropiduridae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) of Chalcides ocellatus (Forskal, 1775) (Scincidae) from Egypt, were redescribed based on light and scanning electron microscopy, and re-evaluation of specimens from parasitological collections. The following features were accurately observed in S. oscari for the first time: structure of lips and pharyngeal valve, presence and distribution of somatic papillae, number and arrangement of caudal papillae, presence of inner sclerotised structures supporting the ventral sucker and the ventral region in tail of males, and structure of the posterior anal lip in females...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29035432/images-in-cardiovascular-medicine-unusual-disc-dislodgement-of-a-bj%C3%A3-rk-shiley-valve-after-long-term-implantation
#16
Pao Yen Lin, Wei Chuan Tsai, Ju Yi Chen
No abstract text is available yet for this article.
September 18, 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/29035278/hdac3-regulates-lymphovenous-and-lymphatic-valve-formation
#17
Harish P Janardhan, Zachary J Milstone, Masahiro Shin, Nathan D Lawson, John F Keaney, Chinmay M Trivedi
Lymphedema, the most common lymphatic anomaly, involves defective lymphatic valve development; yet the epigenetic modifiers underlying lymphatic valve morphogenesis remain elusive. Here, we showed that during mouse development, the histone-modifying enzyme histone deacetylase 3 (Hdac3) regulates the formation of both lymphovenous valves, which maintain the separation of the blood and lymphatic vascular systems, and the lymphatic valves. Endothelium-specific ablation of Hdac3 in mice led to blood-filled lymphatic vessels, edema, defective lymphovenous valve morphogenesis, improper lymphatic drainage, defective lymphatic valve maturation, and complete lethality...
October 16, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29035273/spin-independent-magnetoresistance-effects-in-vertical-graphene-spin-valves
#18
Srikrishna Bodepudi, Abhay Singh, Sandipan Pramanik
Vertical spin valve device configuration with multilayer graphene (MLG) as spacer has drawn significant attention in recent years because of its potential to produce large magnetoresistance (MR) effect due to perfect spin filtering. However, demonstration of this effect has remained elusive so far. Here we consider MLG vertical spin valve structures and show that they exhibit spin independent magnetoresistance effects, which are orders of magnitude stronger than the spin dependent effects reported to date. These effects manifest within a moderate field range of 10kG and depend on various factors such as hybridization near the top graphene surface, doping, defects and interlayer coupling...
October 16, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29034726/an-atypical-pseudoaneurysm-as-complication-of-prosthetic-aortic-valve-endocarditis
#19
Andrea I Guaricci, Rita L Musci, Delia De Santis, Donatella Argentiero, Luca Sgarra, Concetta Losito, Vito Marangelli, Frida Nacci, Domenico Zanna, Stefano Favale
Endocarditis of a prosthetic heart valve is a life-threatening condition that is associated with high morbidity and mortality. Perivalvular extension in infective endocarditis includes complications such as periannular or intramyocardial abscesses, pseudoaneurysms and fistulae. The incidence of perivalvular extension ranges from 10 to 30% in native valve endocarditis and 30 to 55% in prosthetic aortic-valve endocarditis. Herein, we describe a case of a 66-year-old man who presented endocarditis of a prosthetic aortic valve complicated by infective pseudoaneurysm with localization next to the right coronary sinus of Valsalva...
October 16, 2017: Future Cardiology
https://www.readbyqxmd.com/read/29034473/development-and-maturation-of-the-fibrous-components-of-the-arterial-roots-in-the-mouse-heart
#20
Rachel Richardson, Lorraine Eley, Charlotte Donald-Wilson, Jonathon Davis, Natasha Curley, Ahlam Alqahtani, Lindsay Murphy, Robert H Anderson, Deborah J Henderson, Bill Chaudhry
The arterial roots are important transitional regions of the heart, connecting the intrapericardial components of the aortic and pulmonary trunks with their ventricular outlets. They house the arterial (semilunar) valves and, in the case of the aorta, are the points of coronary arterial attachment. Moreover, because of the semilunar attachments of the valve leaflets, the arterial roots span the anatomic ventriculo-arterial junction. By virtue of this arrangement, the interleaflet triangles, despite being fibrous, are found on the ventricular aspect of the root and located within the left ventricular cavity...
October 15, 2017: Journal of Anatomy
keyword
keyword
58760
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"