keyword
MENU ▼
Read by QxMD icon Read
search

atrial function

keyword
https://www.readbyqxmd.com/read/28228454/sex-differences-in-long-term-mortality-after-stroke-in-the-instruct-international-stroke-outcomes-study-a-meta-analysis-of-individual-participant-data
#1
Hoang T Phan, Christopher L Blizzard, Mathew J Reeves, Amanda G Thrift, Dominique Cadilhac, Jonathan Sturm, Emma Heeley, Petr Otahal, Vemmos Konstantinos, Craig Anderson, Priya Parmar, Rita Krishnamurthi, Suzanne Barker-Collo, Valery Feigin, Yannick Bejot, Norberto L Cabral, Antonio Carolei, Simona Sacco, Nicolas Chausson, Stephane Olindo, Peter Rothwell, Carolina Silva, Manuel Correia, Rui Magalhães, Peter Appelros, Janika Kõrv, Riina Vibo, Cesar Minelli, Seana Gall
BACKGROUND: Women are reported to have greater mortality after stroke than men, but the reasons are uncertain. We examined sex differences in mortality at 1 and 5 years after stroke and identified factors contributing to these differences. METHODS AND RESULTS: Individual participant data for incident strokes were obtained from 13 population-based incidence studies conducted in Europe, Australasia, South America, and the Caribbean between 1987 and 2013. Data on sociodemographics, stroke-related factors, prestroke health, and 1- and 5-year survival were obtained...
February 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28228120/findings-of-transoesophageal-echocardiogram-in-appropriately-anticoagulated-patients-with-persistent-atrial-fibrillation-prior-to-planned-cardioversion
#2
Jūratė Barysienė, Aistė Žebrauskaitė, Dovilė Petrikonytė, Germanas Marinskis, Sigita Aidietienė, Audrius Aidietis
BACKGROUND: To evaluate a diagnostic value of transoesophageal echocardiogram (TEE) in appropriately anticoagulated patients with a non-valvular atrial fibrillation (AF) and to establish possible additional indications for TEE; to evaluate the incidence of left atrial (LA) thrombi in appropriately anticoagulated patients in daily clinical practice. METHODS: This retrospective study analyses data of 432 patients who had been anticoagulated by means of oral anticoagulants (OACs) prior to planned cardioversion during the period from 2012 to 2015...
February 23, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28227090/amplitude-based-beat-detection-for-atrial-fibrillation-in-pacemaker
#3
Seung Hwan Lee, Hyoun Seok Myoung, Chang Hoon Kang, Eue Keun Choi, Kyoung Joung Lee, Seung Hwan Lee, Hyoun Seok Myoung, Chang Hoon Kang, Eue Keun Choi, Kyoung Joung Lee, Chang Hoon Kang, Eue Keun Choi, Seung Hwan Lee, Kyoung Joung Lee, Hyoun Seok Myoung
Bradycardia is defined as a sinus rhythm of less than 60 beats per minute and atrial tachyarrhythmia including atrial fibrillation (AF) is frequently associated with bradycardia. Pacemaker is the only effective treatment for symptomatic bradycardia and automatic mode switching (AMS) function is built in pacemaker to switch mode in the presence of atrial tachyarrhythmia. AMS algorithms consider appropriate mode switching in case of undersensing or oversensing and this consideration makes their onset time and resynchronization time late...
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/28224930/incidence-of-severe-renal-dysfunction-among-individuals-taking-warfarin-and-implications-for-non-vitamin-k-oral-anticoagulants
#5
Christina L Fanola, Deirdre Mooney, Andrew J Cowan, Darae Ko, Emily K Sisson, Lori E Henault, Yorghos Tripodis, Elaine M Hylek
BACKGROUND: The purpose of this study is to assess incidence and risk factors for severe renal dysfunction in patients requiring oral anticoagulation to help guide initial drug choice and provide a rational basis for interval monitoring of renal function for patients prescribed non-vitamin K oral anticoagulants. METHODS: Patients on warfarin for atrial fibrillation or venous thromboembolism were consecutively enrolled from January 2007 to December 2010. Baseline kidney function was assessed, and patients were followed to their first decline of kidney function to creatinine clearance<30 mL/min...
February 2017: American Heart Journal
https://www.readbyqxmd.com/read/28224928/impact-of-right-ventricular-function-on-outcome-of-severe-aortic-stenosis-patients-undergoing-transcatheter-aortic-valve-replacement
#6
Edward Koifman, Romain Didier, Nirav Patel, Zack Jerusalem, Sarkis Kiramijyan, Itsik Ben-Dor, Smita I Negi, Zuyue Wang, Steven A Goldstein, Michael J Lipinski, Rebecca Torguson, Jiaxiang Gai, Augusto D Pichard, Lowell F Satler, Ron Waksman, Federico M Asch
BACKGROUND: Right ventricular (RV) dysfunction was shown to be associated with adverse outcomes in a variety of cardiac patients and is considered a risk factor for adverse outcome according to the updated Valve Academic Research Consortium criteria. OBJECTIVE: Our goal was to assess the impact of RV function at baseline on 1-year mortality among patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve replacement (TAVR). METHODS: All patients with severe AS treated with TAVR from May 2007 to March 2015 at our center were included in the present study, and baseline and procedural characteristics were recorded for each patient...
February 2017: American Heart Journal
https://www.readbyqxmd.com/read/28224424/dynamic-characteristic-mechanism-of-atrial-septal-defect-using-real-time-three-dimensional-echocardiography-and-evaluation-of-right-ventricular-functions
#7
Gao-Wa Sharen, Jun Zhang, Chuan Qin, Qing Lv
The dynamic characteristics of the area of the atrial septal defect (ASD) were evaluated using the technique of real-time three-dimensional echocardiography (RT 3DE), the potential factors responsible for the dynamic characteristics of the area of ASD were observed, and the overall and local volume and functions of the patients with ASD were measured. RT 3DE was performed on the 27 normal controls and 28 patients with ASD. Based on the three-dimensional data workstations, the area of ASD was measured at P wave vertex, R wave vertex, T wave starting point, and T wave terminal point and in the T-P section...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28223093/association-between-circulating-angiotensin-converting-enzyme-2-and-cardiac-remodeling-in-hypertensive-patients
#8
Shichao Li, Zhijun Wang, Xiuhong Yang, Bo Hu, Yuling Huang, Sujing Fan
BACKGROUND: Angiotensin-converting enzyme 2 (ACE2) plays a vital role in the pathogenesis of hypertension-induced cardiac remodeling and exhibits cardioprotective properties in hypertensive animal models. Evidence that ACE2 is an important regulator of hypertensive cardiac remodeling in humans has not been addressed directly yet. METHODS: A total of 161 patients with essential hypertension and 47 age- and sex-matched normotensive healthy subjects were consecutively recruited...
February 18, 2017: Peptides
https://www.readbyqxmd.com/read/28220472/renal-denervation-for-resistant-hypertension
#9
REVIEW
Giuseppe Coppolino, Anna Pisano, Laura Rivoli, Davide Bolignano
BACKGROUND: Resistant hypertension is highly prevalent among the general hypertensive population and the clinical management of this condition remains problematic. Different approaches, including a more intensified antihypertensive therapy, lifestyle modifications, or both, have largely failed to improve patients' outcomes and to reduce cardiovascular and renal risk. As renal sympathetic hyperactivity is a major driver of resistant hypertension, renal sympathetic ablation (renal denervation) has been recently proposed as a possible therapeutic alternative to treat this condition...
February 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28219912/anticoagulant-related-nephropathy-in-a-patient-with-iga-nephropathy
#10
Mário Góis, Ariana Azevedo, Fernanda Carvalho, Fernando Nolasco
Anticoagulant-related nephropathy is a type of acute kidney injury caused by overcoagulation. We describe a case of an 84-year-old man with arterial hypertension, coronary heart disease and atrial fibrillation treated with acenocoumarol, who presented with haematoproteinuria and acute kidney injury during a phase of excessive anticoagulation. In addition to IgA nephropathy, renal biopsy also revealed acute tubular necrosis, red blood cell casts and positive iron staining in tubular cells. After this acute episode, renal function improved and proteinuria decreased below the nephrotic range...
February 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28219794/atrial-fibrillation-in-hypertrophic-cardiomyopathy-a-turning-point-towards-increased-morbidity-and-mortality
#11
Thomas Zegkos, Georgios K Efthimiadis, Despoina G Parcharidou, Thomas D Gossios, Georgios Giannakoulas, Dimitris Ntelios, Antonis Ziakas, Stelios Paraskevaidis, Haralambos I Karvounis
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmic event in patients with hypertrophic cardiomyopathy (HCM). The aim of this study was to identify the clinical and the prognostic impact of the arrhythmia on a large cohort of patients with HCM. METHODS: The echocardiographic and clinical correlates, the predictors of AF and thromboembolic stroke and the prognostic significance of the arrhythmia were evaluated in 509 patients with an established diagnosis of HCM...
February 17, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28219356/bacopa-monnieri-extract-increases-rat-coronary-flow-and-protects-against-myocardial-ischemia-reperfusion-injury
#12
Sirintorn Srimachai, Sylvie Devaux, Celine Demougeot, Sarawut Kumphune, Nina D Ullrich, Ernst Niggli, Kornkanok Ingkaninan, Natakorn Kamkaew, C Norman Scholfield, Sompol Tapechum, Krongkarn Chootip
BACKGROUND: This study explored Bacopa monnieri, a medicinal Ayurvedic herb, as a cardioprotectant against ischemia/reperfusion injury using cardiac function and coronary flow as end-points. METHODS: In normal isolated rat hearts, coronary flow, left ventricular developed pressure, heart rate, and functional recovery were measured using the Langendorff preparation. Hearts were perfused with either (i) Krebs-Henseleit (normal) solution, (control), or with 30, 100 μg/ml B...
February 20, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28217230/red-cell-distribution-width-and-all-cause-mortality-in-patients-with-atrial-fibrillation-a-cohort-study
#13
Walid Saliba, Ofra Barnett-Griness, Gad Rennert
BACKGROUND: Increased red cell distribution width (RDW), a measure of red cell size variability, has been associated with increased mortality in multiple cardiovascular diseases. However, whether RDW is associated with increased mortality in patients with atrial fibrillation remains unknown. METHODS: Using the computerized database of the largest health maintenance organization in Israel, we identified a cohort of adults with atrial fibrillation diagnosed before January 1, 2012...
February 2017: Journal of Arrhythmia
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
#14
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/28214967/increased-atrial-%C3%AE-adrenergic-receptors-and-grk-2-gene-expression-can-play-a-fundamental-role-in-heart-failure-after-repair-of-congenital-heart-disease-with-cardiopulmonary-bypass
#15
Marcela Silva Oliveira, Fabio Carmona, Walter V A Vicente, Paulo H Manso, Karina M Mata, Mara Rúbia Celes, Erica C Campos, Simone G Ramos
Surgeries to correct congenital heart diseases are increasing in Brazil and worldwide. However, even with the advances in surgical techniques and perfusion, some cases, especially the more complex ones, can develop heart failure and death. A retrospective study of patients who underwent surgery for correction of congenital heart diseases with cardiopulmonary bypass (CPB) in a university tertiary-care hospital that died, showed infarction in different stages of evolution and scattered microcalcifications in the myocardium, even without coronary obstruction...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#16
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28212534/association-between-echocardiographic-structural-parameters-and-body-weight-in-wistar-rats
#17
Silvio A Oliveira-Junior, Paula F Martinez, William Y C Fan, Bruno T Nakatani, Luana U Pagan, Carlos R Padovani, Antonio C Cicogna, Marina P Okoshi, Katashi Okoshi
BACKGROUND: The association between echocardiographic structural parameters and body weight (BW) during rat development has been poorly addressed. We evaluated echocardiographic variables: left ventricular (LV) end-diastolic (LVDD) and end-systolic (LVSD) diameters, LV diastolic posterior wall thickness (PWT), left atrial diameter (LA), and aortic diameter (AO) in function of BW during development.Results/Materials and Methods: Male Wistar rats (n = 328, BW: 302-702 g) were retrospectively used to construct regression models and 95% confidence intervals relating to cardiac structural parameters and BW...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28208963/clinical-profile-of-cardiac-arrhythmias-in-children-attending-the-out-patient-department-of-a-tertiary-paediatric-care-centre-in-chennai
#18
Sarala Premkumar, Premkumar Sundararajan, Thangavelu Sangaralingam
INTRODUCTION: The presentation of symptoms of paediatric arrhythmias vary depending on the age and underlying heart disease. Physical examination of children with important arrhythmias may be entirely normal. AIM: Aim is to study the characteristics of cardiac arrhythmias in paediatric patients in a tertiary paediatric care centre in Chennai, India. MATERIALS AND METHODS: The participants (n=60) were from birth to 12 years of age. Patients with sinus arrhythmias, sinus tachycardia and sinus bradycardia were excluded...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207554/isolated-cardiac-troponin-rise-does-not-modify-the-prognosis-in-elderly-patients-with-hip-fracture
#19
Hélène Vallet, Alice Breining, Yannick Le Manach, Judith Cohen-Bittan, Anthony Mézière, Mathieu Raux, Marc Verny, Bruno Riou, Frédéric Khiami, Jacques Boddaert
Perioperative myocardial infarction remains a life-threatening complication in noncardiac surgery and even an isolated troponin rise (ITR) is associated with significant mortality. Our aim was to assess the prognostic value of ITR in elderly patients with hip fracture.In this cohort study, all patients admitted between 2009 and 2013 in our dedicated geriatric postoperative unit after hip fracture surgery with a cardiac troponin I determination were included and divided into Control, ITR, and acute coronary syndrome (ACS) groups...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28207381/personalized-models-of-human-atrial-electrophysiology-derived-from-endocardial-electrograms
#20
Cesare Corrado, John Whitaker, Henry Chubb, Steven Williams, Matthew Wright, Jaswinder Gill, Mark O'Neill, Steven Niederer
OBJECTIVE: Computational models represent a novel framework for understanding the mechanisms behind atrial fibrillation (AF) and offer a pathway for personalizing and optimizing treatment. The characterization of local electrophysiological properties across the atria during procedures remains a challenge. The aim of this work is to characterize the regional properties of the human atrium from multi-electrode catheter measurements. METHODS: We propose a novel method that characterizes regional electrophysiology properties by fitting parameters of an ionic model to conduction velocity and effective refractory period restitution curves obtained by a s1 s2 pacing protocol applied through a multi-electrode catheter...
May 30, 2016: IEEE Transactions on Bio-medical Engineering
keyword
keyword
28062
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"