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https://www.readbyqxmd.com/read/28733782/catheter-ablation-of-atrial-fibrillation-an-overview-for-clinicians
#1
REVIEW
Nebojša Mujović, Milan Marinković, Radoslaw Lenarczyk, Roland Tilz, Tatjana S Potpara
Catheter ablation (CA) of atrial fibrillation (AF) is currently one of the most commonly performed electrophysiology procedures. Ablation of paroxysmal AF is based on the elimination of triggers by pulmonary vein isolation (PVI), while different strategies for additional AF substrate modification on top of PVI have been proposed for ablation of persistent AF. Nowadays, various technologies for AF ablation are available. The radiofrequency point-by-point ablation navigated by electro-anatomical mapping system and cryo-balloon technology are comparable in terms of the efficacy and safety of the PVI procedure...
July 21, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28730800/optimizing-the-role-of-transthoracic-echocardiography-to-improve-the-cardiovascular-risk-stratification-the-dream-of-subclinical-coronary-artery-disease-detection
#2
Giovanni Benfari, Andrea Rossi, Giulia Geremia, Giulia Vinco, Carlo Zivelonghi, Aldo D Milano, Leonardo Gottin, Flavio L Ribichini, Francesco Onorati, Giuseppe Faggian
Detecting coronary artery disease at a subclinical level has always been a challenging task for cardiologists. Various non-invasive echocardiographic approaches such as measurements of left ventricular hypertrophy, diastolic function, left atrial enlargement, valve sclerosis and calcification, epicardial fat thickness, and pulse wave velocity have been proposed to integrate the available risk-charts. The present review is a collection of evidence that supports the role of the above mentioned features in cardiac risk stratification, summarizing the state of the art in non-invasive echocardiographic coronary risk assessment...
July 21, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28730170/predictions-and-outcomes-of-atrial-fibrillation-in-the-patients-with-acute-myocardial-infarction
#3
Mihailo Vukmirović, Aneta Bošković, Irena Tomašević Vukmirović, Radoje Vujadinovic, Nikola Fatić, Zoran Bukumirić, Filip Vukmirović
The large epidemiological studies demonstrated that atrial fibrillation is correlated with high mortality and adverse events in patients with acute myocardial infarction. The aim of this study was to determinate predictors of atrial fibrillation develop during the hospital period in patients with acute myocardial infarction as well as short- and long-term mortality depending on the atrial fibrillation presentation. The 600 patients with an acute myocardial infarction were included in the study and follow-up 84 months...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28724839/effect-of-recurrent-mitral-regurgitation-after-mitral-valve-repair-in-patients-with-degenerative-mitral-regurgitation
#4
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/28712176/ecg-abnormalities-in-patients-with-chronic-kidney-disease
#5
Salman Shafi, Mohammad Saleem, Roshina Anjum, Wajid Abdullah, Tahir Shafi
BACKGROUND: Chronic kidney disease (CKD) is associated with increased risk of cardiovascular disease. Electrocardiographic (ECG) abnormalities are common in CKD patients. However, there is variation in literature regarding frequency of ECG abnormalities in CKD patients and limited information in local population. METHODS: The study design was cross-sectional in nature. All patients between ages of 20-80 years with CKD not previously on renal replacement therapy who were admitted to nephrology ward at a tertiary care facility over a 6-month period were included...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28701362/accuracy-of-the-ecg-for-differential-diagnosis-between-hypertrophic-cardiomyopathy-and-athlete-s-heart-comparison-between-the-european-society-of-cardiology-2010-and-international-2017-criteria
#6
Alessandro Zorzi, Chiara Calore, Riccardo Vio, Antonio Pelliccia, Domenico Corrado
BACKGROUND: Interpretation of the athlete's ECG is based on differentiation between benign ECG changes and potentially pathological abnormalities. The aim of the study was to compare the 2010 European Society of Cardiology (ESC) and the 2017 International criteria for differential diagnosis between hypertrophic cardiomyopathy (HCM) and athlete's heart. METHODS: The study populations included 200 patients with HCM and 563 athletes grouped as follows: 'group 1', including normal ECG and isolated increase of QRS voltages, which are considered non-pathologic according to ESC and International criteria; 'group 2', including left atrial enlargement or left axis deviation in isolation and Q-waves with an amplitude ≥4 mm but <25% of the ensuing R-wave and a duration <0...
July 12, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28674624/left-atrial-strain-predicts-recurrence-of-atrial-arrhythmias-after-catheter-ablation-of-persistent-atrial-fibrillation
#7
Abdul Shokor Parwani, Daniel-Armando Morris, Florian Blaschke, Martin Huemer, Burkert Pieske, Wilhelm Haverkamp, Leif-Hendrik Boldt
INTRODUCTION: Success rates of catheter ablation (CA) of persistent atrial fibrillation (AF) are very variable. Identifying patients in whom sinus rhythm maintenance cannot be achieved after CA is a critical issue. METHODS: 2D speckle-tracking echocardiography was performed before the first CA procedure in consecutive patients with persistent AF. Left atrial (LA) strain was correlated with recurrence of atrial arrhythmias during the follow-up period of 15 months after one CA procedure with or without antiarrhythmic drugs (primary endpoint)...
2017: Open Heart
https://www.readbyqxmd.com/read/28662873/asymptomatic-hypertrophic-cardiomyopathy-diagnosis-and-therapy
#8
REVIEW
Virginia Luis Fuentes, Lois J Wilkie
Hypertrophic cardiomyopathy (HCM) affects 15% of cats, and prevalence increases with age. Although many cats with HCM will have normal life expectancy, some cats die suddenly or will develop congestive heart failure or arterial thromboembolism (ATE). High-risk cats can be recognized by left atrial enlargement on echocardiography, which can be missed on physical examination as a heart murmur is often absent. Alternatively, plasma biomarkers can be measured as an initial screening test; echocardiography is indicated in cats with plasma NT-probrain natriuretic peptide concentrations exceeding 100 pmol/L...
June 27, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28631077/noninvasive-evaluation-of-reverse-atrial-remodeling-after-catheter-ablation-of-atrial-fibrillation-by-p-wave-dispersion
#9
Yuhi Fujimoto, Kenji Yodogawa, Kenta Takahashi, Ippei Tsuboi, Hiroshi Hayashi, Shunsuke Uetake, Yu-Ki Iwasaki, Meiso Hayashi, Yasushi Miyauchi, Wataru Shimizu
Atrial fibrillation (AF) itself creates structural and electrophysiological changes such as atrial enlargement, shortening of refractory period and decrease in conduction velocity, called "atrial remodeling", promoting its persistence. Although the remodeling process is considered to be reversible, it has not been elucidated in detail. The aim of this study was to assess the feasibility of P wave dispersion in the assessment of reverse atrial remodeling following catheter ablation of AF. Consecutive 126 patients (88 males, age 63...
June 19, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28616550/is-hatch-score-a-reliable-predictor-of-atrial-fibrillation-after-cavotricuspid-isthmus-ablation-for-typical-atrial-flutter
#10
Javier García-Seara, Francisco Gude Sampedro, Jose L Martínez Sande, Xesus Alberte Fernández López, Moisés Rodríguez Mañero, Laila González Melchor, Belén Alvarez Alvarez, Diego Iglesias Alvarez, José Ramón González Juanatey
OBJECTIVE: We determined the effectiveness of the HATCH score in patients with typical atrial flutter (AFl) undergoing cavotricuspid isthmus (CTI) ablation to predict long-term atrial fibrillation (AF). METHODS: We conducted an observational retrospective single-center cohort study including all patients admitted to our hospital for a CTI ablation between 1998 and 2010. The patients were divided into four categories: 1) new-onset AF (no prior AF and AF during follow-up (FU)); 2) old AF (prior AF and no AF during FU); 3) prior and post AF (AF prior and post CTI ablation); and 4) no AF...
September 2016: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28612341/cardiomyocyte-marker-expression-in-dogs-with-left-atrial-enlargement-due-to-dilated-cardiomyopathy-or-myxomatous-mitral-valve-disease
#11
Izabela Janus, Malgorzata Kandefer-Gola, Rafal Ciaputa, Agnieszka Noszczyk-Nowak, Urszula Paslawska, Massimiliano Tursi, Marcin Nowak
INTRODUCTION: Dilated cardiomyopathy (DCM) and myxomatous mitral valve disease (MMVD) are common heart conditions in dogs. They have different etiology and pathogenesis and although other studies focused on changes in the left ventricles of the affected hearts, the aim of our study was to assess the expressions of some intrinsic proteins in the enlarged left atria. MATERIAL AND METHODS: We performed an immunohistochemical analysis of left atrial specimens obtained from 15 dogs with DCM, 35 dogs with MMVD and six control dogs...
June 14, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28612230/right-atrial-diameter-and-outcome-of-catheter-ablation-of-atrial-fibrillation
#12
Song -Nan Wen, Nian Liu, Rong Bai, Ri-Bo Tang, Rong-Hui Yu, De-Yong Long, Cai-Hua Sang, Chen-Xi Jiang, Song-Nan Li, Jia-Hui Wu, Yan-Fei Ruan, Rong Hu, Xin Du, Xiao-Hui Liu, Jian-Zeng Dong, Chang-Sheng Ma
PURPOSE: While AF is considered more like a left atrial (LA) disease, to what extent the right atrium contributes to the pathogenesis and ablation outcome of AF remains unclear. This study aimed to identify if right atrial diameter (RAD) could predict arrhythmia recurrence after catheter ablation of atrial fibrillation (AF). METHODS: Four hundred and seventy patients with drug-resistant AF [paroxysmal AF (PAF) 196; non-PAF 274] who underwent primary catheter ablation were enrolled...
June 13, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28597765/poor-survival-in-patients-with-scleroderma-and-pulmonary-hypertension-due-to-heart-failure-with-preserved-ejection-fraction
#13
Khalil I Bourji, Benjamin W Kelemen, Stephen C Mathai, Rachel L Damico, Todd M Kolb, Valentina Mercurio, Franco Cozzi, Ryan J Tedford, Paul M Hassoun
Pulmonary hypertension due to heart failure with preserved ejection fraction (PH-HFpEF) has been poorly studied in patients with systemic sclerosis (SSc). We sought to compare clinical characteristics and survival of SSc patients with PH-HFpEF (SSc-PH-HFpEF) versus pulmonary arterial hypertension (SSc-PAH). We hypothesized that patients with SSc-PH-HFpEF have a similar poor overall prognosis compared with patients with SSc-PAH when matched for total right ventricular load. The analysis included 117 patients with SSc-PH (93 with SSc-PAH versus 24 with SSc-PH-HFpEF) enrolled prospectively in the Johns Hopkins PH Registry...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28573446/echocardiographic-assessment-in-patients-with-granulomatosis-with-polyangiitis
#14
Katarzyna Życińska, Anna Borowiec, Tadeusz M Zielonka, Tomasz Rusinowicz, Małgorzata Hadzik-Błaszczyk, Magda Cieplak, Kazimierz A Wardyn
Granulomatosis with polyangiitis (GPA) is one of the most common forms of systemic vasculitis, which usually involves the upper and lower respiratory tract, but it may affect also multiple organs. The aim of the study was an echocardiographic evaluation of cardiac involvement in GPA patients during remission. Eighty eight patients with GPA were evaluated in the study. The control group consisted of 40 age and sex-matched patients without a previous history of cardiovascular disease. We found that there were no differences between GPA and control groups regarding left atrial enlargement and interventricular septal hypertrophy...
June 2, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28571189/evaluation-of-ecg-abnormalities-in-patients-with-asymptomatic-type-2-diabetes-mellitus
#15
Sahil Gupta, Rajeev Kumar Gupta, Malini Kulshrestha, Rajib Ratna Chaudhary
INTRODUCTION: Diabetes Mellitus (DM) is the most common chronic disease. DM is considered a Cardiovascular Disease (CVD) risk equivalent. Its macrovascular complications are associated with two-fold increased risk of premature atherosclerotic CVD. Most of the diabetics with cardiovascular involvement are asymptomatic. Electro Cardio Graph (ECG) abnormalities are found to be predictors of silent ischaemia in asymptomatic persons. An abnormal ECG response is associated with statistically significant high risk for cardiac mortality and morbidity...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28566474/mitral-valve-repair-for-degenerative-mitral-valve-disease-surgical-approach-patient-selection-and-long-term-outcomes
#16
REVIEW
Gonçalo F Coutinho, Manuel J Antunes
Mitral valve repair (MVRepair) has become the procedure of choice to correct severe degenerative mitral regurgitation (MR), due to its documented superiority to valve replacement regarding long-term survival, freedom from valve-related adverse events and preservation of left ventricular (LV) function. The refinement of MVRepair techniques has rendered almost all valves (more than 95%) amenable to repair with a 15-year freedom from reoperation of 90%. The concept of 'centres of excellence for MVRepair' has emerged, encouraging referring doctors to select the most experienced institutions or individual surgeons to deal with the most complex cases, based on repair volume, appropriate peri-procedural imaging and data regarding expected outcomes (repair, mortality and durability of repair)...
May 31, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28566199/determinants-of-left-atrial-volume-index-in-patients-with-aortic-stenosis-a-multicentre-pilot-study
#17
Dan Rusinaru, Yohann Bohbot, Erwan Salaun, Erwan Donal, Anne-Claire Calsata, Elena Galli, Cécile Lavoute, Maxime Fournet, Catherine Szymanski, Christophe Leclercq, Gilbert Habib, Christophe Tribouilloy
BACKGROUND: Left atrial (LA) enlargement is frequent in patients with aortic stenosis (AS), yet its determinants and prognostic implications are poorly understood. AIMS: To identify the echocardiographic variables associated with increased LA volume index (LAVI), and test the prognostic value of LAVI in AS. METHODS: We prospectively included 715 patients with AS in sinus rhythm at enrolment. Echocardiography was performed at baseline. Median follow-up was 22...
May 26, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28560753/big-thrombus-sitting-in-an-atrial-septal-aneurysm
#18
Julián Vega Adauy, Luigi Gabrielli, Samuel Córdova, Rodrigo Saavedra, Paul McNab
A 79 year-old-man presented three episodes of upper gastrointestinal bleeding and weight loss. Endoscopy revealed bleeding and extrinsic compression at the pyloric region. Computed tomography scan showed a pancreatic tumor, peritoneal carcinomatosis, vascular infiltration, and incidentally found a partially calcified hypodense lesion of 35 mm in the left atrium, suggesting a myxoma or a thrombus. Echocardiography revealed moderate left atrium enlargement, dilated left atrial appendage with spontaneous echo contrast, moderate dilatation and dysfunction of the left ventricle, ejection fraction was 39%, and an atrial septal aneurysm in which a piriform, mass of 35×33×25 mm, was "sitting," suggesting an organized thrombus...
May 30, 2017: Echocardiography
https://www.readbyqxmd.com/read/28535775/factors-influencing-postoperative-atrial-fibrillation-in-patients-undergoing-on-pump-coronary-artery-bypass-grafting-single-center-experience
#19
Mohamed F Ismail, Ahmed F El-Mahrouk, Tamer H Hamouda, Hanan Radwan, Ali Haneef, Ahmed A Jamjoom
BACKGROUND: The reported incidence of AF after CABG surgery varies from 20 to 40%, with the arrhythmia usually occurring between second and fourth postoperative days. Postoperative AF after CABG was associated with greater in-hospital mortality and worse survival at long-term follow-up. Therefore, intensive attention has focused on the prevention of AF in high-risk patients. Many perioperative factors have been suggested to increase the incidence of postoperative AF after conventional CABG...
May 23, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28534025/atrial-fibrillation-dynamics-and-ionic-block-effects-in-six-heterogeneous-human-3d-virtual-atria-with-distinct-repolarization-dynamics
#20
Carlos Sánchez, Alfonso Bueno-Orovio, Esther Pueyo, Blanca Rodríguez
Atrial fibrillation (AF) usually manifests as reentrant circuits propagating through the whole atria creating chaotic activation patterns. Little is yet known about how differences in electrophysiological and ionic properties between patients modulate reentrant patterns in AF. The goal of this study is to quantify how variability in action potential duration (APD) at different stages of repolarization determines AF dynamics and their modulation by ionic block using a set of virtual whole-atria human models...
2017: Frontiers in Bioengineering and Biotechnology
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