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Left atrial enlargement

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https://www.readbyqxmd.com/read/29146482/impaired-left-atrial-strain-as-a-predictor-of-new-onset-atrial-fibrillation-after-aortic-valve-replacement-independently-of-left-atrial-size
#1
Guilherme Pessoa-Amorim, Jennifer Mancio, Luís Vouga, José Ribeiro, Vasco Gama, Nuno Bettencourt, Ricardo Fontes-Carvalho
INTRODUCTION AND OBJECTIVES: Left atrial dysfunction in aortic stenosis may precede atrial enlargement and predict the occurrence of atrial fibrillation (AF). To test this hypothesis, we assessed left atrial function and determined its impact on the incidence of AF after aortic valve replacement. METHODS: A total of 149 severe aortic stenosis patients (74±8.6 years, 51% men) with no prior AF were assessed using speckle-tracking echocardiography. Left atrial function was evaluated using peak atrial longitudinal strain (PALS), peak atrial contraction strain (PACS), and phasic left atrial volumes...
November 13, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29128861/atrial-cardiomyopathy-in-an-adult-labrador-retriever-dog
#2
E Bomassi, J Rousselot, S Libermann, I Raymond Letron, S Etchepareborde, C Misbach
A 7-year-old castrated male Labrador retriever was examined for a 10-day history of weakness and syncope. Physical examination revealed bradycardia and a grade III/VI left apical systolic heart murmur. Electrocardiography demonstrated bradycardia, absence of P waves and an atrio-ventricular nodal escape rhythm. Echocardiography revealed marked biatrial enlargement. Thoracic radiographs showed no evidence of pulmonary edema. Routine plasma biochemistry and electrolytes, basal serum cortisol, total thyroxin concentration, and complete blood count were within normal limits...
November 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29120873/a-rare-case-of-isolated-atrial-myocarditis-causing-death-with-no-post-mortem-computed-tomography-scan-correlation
#3
Rexson Tse, Jack Garland, Kilak Kesha, Yvonne Triggs, Lucy Modahl, David Milne, Zhi Yap, Simon Stables
Acute myocarditis is a potentially fatal cardiac pathology that is thought to cause sudden death through arrhythmia and cardiac failure. Of the different subtypes, lymphocytic myocarditis is the most common form. The pathophysiology of myocarditis can be generally diffuse or focally involve the ventricles, but less frequently affects the atria. Although the clinical literature reports isolated atrial myocarditis as a cause of atrial fibrillation and enlargement, there is scant postmortem literature on the findings of this pathology...
November 9, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29118563/cardiac-dysfunction-as-an-early-predictor-of-portal-hypertension-in-chronic-hepatitis-c
#4
Cecilia Marconi, Mattia Bellan, Paola Giarda, Rosalba Minisini, Serena Favretto, Michela Emma Burlone, Lisa Franzosi, Mario Pirisi
Background: Cirrhotic cardiomyopathy is characterized by a set of cardiovascular modifications observed in advanced chronic liver disease. The aim of this study was to investigate cardiovascular alterations in chronic liver disease with different stages of fibrosis and to correlate cardiac involvement with endoscopic complications of portal hypertension. Methods: Seventy patients with chronic hepatitis C-related chronic liver disease and 20 sex- and age-matched controls underwent clinical evaluation, hepatic transient elastography, and echocardiography...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29115988/prevalence-and-determinants-of-pulmonary-hypertension-in-a-group-of-cameroonian-patients-without-chronic-lung-disease-a-cross-sectional-echocardiographic-study
#5
Ahmadou M Jingi, Jean Jacques Noubiap, Aurel T Tankeu, Liliane Mfeukeu-Kuate, Clovis Nkoke, Philippe Kamdem, Alain Patrick Menanga, Samuel Kingue
OBJECTIVE: To study prevalence and determinants of pulmonary hypertension (PH) in a group of Cameroonian patients without chronic lung disease. We conducted a cross-sectional study conducted between April and December 2011 in a private cardiology clinic in Bafoussam, Cameroon. We included consenting participants aged ≥ 18, who underwent a Doppler echocardiography. Patients with chronic lung disease were excluded. RESULTS: A total of 178 participants were enrolled, of whom 44...
November 7, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29110750/aortic-elasticity-and-carotid-intima-media-thickness-in-children-with-mitral-valve-prolapse
#6
Elif Erolu, Figen Akalın, Nilüfer Çetiner, Berna Şaylan Çevik
Aim We aimed to study the dimensions, systolic and diastolic functions of the left ventricle; dimensions and elasticity of the aorta; and carotid intima-media thickness and flow-mediated dilatation of the brachial artery in mitral valve prolapse. METHODS: The study group consisted of 43 patients (mean age=13.3±3.9) and 42 healthy children (mean age=12.9±3.4). Left ventricular end-diastolic, end-systolic, left atrial diameters, interventricular septum, and left ventricular posterior wall thickness were measured...
November 7, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29106648/validation-of-echocardiographic-criteria-for-the-clinical-diagnosis-of-heart-failure-in-chronic-kidney-disease
#7
Kathrin Untersteller, Sarah Seiler-Mußler, Francesca Mallamaci, Danilo Fliser, Gérard M London, Carmine Zoccali, Gunnar H Heine
Background: The Acute Dialysis Quality Initiative (ADQI) XI Workgroup has suggested defining heart failure (HF) in patients with end-stage renal disease by the presence of at least one out of eight predefined echocardiographic criteria. Given the high prevalence of echocardiographic alterations in chronic kidney disease (CKD) patients, we hypothesized that application of echocardiographic ADQI criteria will result in overdiagnosis of HF, without providing substantial prognostic information...
July 5, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29089338/left-atrial-volume-and-mortality-in-patients-with-aortic-stenosis
#8
Dan Rusinaru, Yohann Bohbot, Cédric Kowalski, Anne Ringle, Sylvestre Maréchaux, Christophe Tribouilloy
BACKGROUND: Left atrium (LA) enlargement is common in patients with aortic stenosis (AS), yet its prognostic implications are unclear. This study investigates the value of left atrial volume (LAV) and LAV normalized to body size for predicting mortality in AS. METHODS AND RESULTS: We included 1351 patients with AS in sinus rhythm at diagnosis and analyzed the occurrence of all-cause death during follow-up with medical and surgical management. Five parameters of LA enlargement were tested: nonindexed LAV and normalized LAV by ratiometric (LAV/body surface area [BSA] and LAV/height) and allometric (LAV/BSA(1...
October 31, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29089263/successful-balloon-angioplasty-of-pulmonary-artery-stenosis-in-two-cats%C3%A2-and%C3%A2-associated-complications
#9
Donald P Schrope, William D Tyrrell, Kristin A Jacob
Two cats (2.5 months and 8 months old) were each evaluated due to a loud systolic murmur, and each was diagnosed with severe pulmonary artery stenosis at the bifurcation of the main pulmonary artery. Echocardiograms confirmed significant right atrial dilation and right ventricular dilation and/or hypertrophy that was progressive in one cat. Atenolol was initiated and the cats were referred for interventional therapy. Balloon angioplasty was performed via the jugular vein. In case 1, the pressure gradient across the stenosis was reduced from 169...
October 28, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29089093/quality-of-life-improves-after-thoracoscopic-surgical-ablation-of-advanced-atrial-fibrillation-results-of-the-atrial-fibrillation-ablation-and-autonomic-modulation-via-thoracoscopic-surgery-afact-study
#10
Antoine H G Driessen, Wouter R Berger, Mark F A Bierhuizen, Femke R Piersma, Nicoline W E van den Berg, Jolien Neefs, Sébastien P J Krul, WimJan P van Boven, Joris R de Groot
OBJECTIVE: We evaluated health-related quality of life at 12 months after thoracoscopic surgical ablation in patients enrolled in the Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery study. The Atrial Fibrillation Ablation and Autonomic Modulation via Thoracoscopic Surgery study assessed the efficacy and safety of ganglion plexus ablation in patients with symptomatic advanced atrial fibrillation undergoing thoracoscopic surgical ablation. METHODS: Patients (n = 240) underwent thoracoscopic pulmonary vein isolation with additional ablation lines in patients with persistent atrial fibrillation...
September 27, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29079412/predictors-of-death-in-chronic-chagas-cardiomyopathy-patients-with-pacemaker
#11
Giselle de Lima Peixoto, Martino Martinelli Filho, Sérgio Freitas de Siqueira, Silvana Angelina D'Ório Nishioka, Anísio Alexandre Andrade Pedrosa, Ricardo Alkmim Teixeira, Roberto Costa, Roberto Kalil Filho, José Antônio Franchini Ramires
BACKGROUND: Chronic Chagas cardiomyopathy (CCC) is the most serious and frequent manifestation of Chagas disease. Conduction abnormalities and bradycardia requiring pacemaker are common. The aim of this study was to determine the rate and predictors of death in CCC patients with pacemaker. METHODS: In this single-center prospective cohort study we assessed the outcome of 396 CCC patients with pacemaker, followed-up for at least 24months. All patients underwent a clinical and device assessment, 12-lead electrocardiography and echocardiography...
October 19, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29073106/cardiovascular-homeostasis-dependence-on-micu2-a-regulatory-subunit-of-the-mitochondrial-calcium-uniporter
#12
Alexander G Bick, Hiroko Wakimoto, Kimberli J Kamer, Yasemin Sancak, Olga Goldberger, Anna Axelsson, Daniel M DeLaughter, Joshua M Gorham, Vamsi K Mootha, J G Seidman, Christine E Seidman
Comparative analyses of transcriptional profiles from humans and mice with cardiovascular pathologies revealed consistently elevated expression of MICU2, a regulatory subunit of the mitochondrial calcium uniporter complex. To determine if MICU2 expression was cardioprotective, we produced and characterized Micu2(-/-) mice. Mutant mice had left atrial enlargement and Micu2(-/-) cardiomyocytes had delayed sarcomere relaxation and cytosolic calcium reuptake kinetics, indicating diastolic dysfunction. RNA sequencing (RNA-seq) of Micu2(-/-) ventricular tissues revealed markedly reduced transcripts encoding the apelin receptor (Micu2(-/-) vs...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29064127/second-generation-cryoballoon-ablation-for-treatment-of-persistent-atrial-fibrillation-three-year-outcome-and-predictors-of-recurrence-after-a-single-procedure
#13
Ersan Akkaya, Alexander Berkowitsch, Sergej Zaltsberg, Harald Greiss, Christian W Hamm, Johannes Sperzel, Thomas Neumann, Malte Kuniss
INTRODUCTION: Data on long-term outcomes of cryoballoon (CB) ablation for treatment of persistent atrial fibrillation (AF) are sparse. Here, we report the first 3-year follow-up results and predictors of success for catheter ablation using the second-generation CB in patients with persistent AF. METHODS AND RESULTS: For this prospective observational study, we enrolled 101 patients ablated with the second-generation CB at our institution. The endpoint was the first documented recurrence (> 30 sec) of AF, atrial flutter, or atrial tachycardia after a 3-month blanking period...
October 24, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29059376/association-of-body-size-metrics-with-left-atrial-phasic-volumes-and-reservoir-function-in-the-elderly
#14
Aylin Tugcu, Cesare Russo, Zhezhen Jin, Shunichi Homma, Koki Nakanishi, Mitchell S V Elkind, Tatjana Rundek, Ralph L Sacco, Marco R Di Tullio
Aims: General obesity, defined by increased body mass index (BMI), is associated with left atrial (LA) enlargement, a marker of cardiovascular risk in the general population. The association between abdominal adiposity, defined by increased waist circumference (WC) or waist-to-hip ratio (WHR), and LA phasic volumes and reservoir function is not well known. The aim of this study was to evaluate the association between different body size metrics and LA phasic volumes and reservoir function in the elderly...
October 20, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29054237/systemic-venous-rerouting-through-the-coronary-sinus-for-cctga-with-bilateral-svcs
#15
Satoshi Asada, Masaaki Yamagishi, Takako Miyazaki, Yoshinobu Maeda, Satoshi Taniguchi, Shuhei Fujita, Hisayuki Hongu, Hitoshi Yaku
The double-switch operation for congenitally corrected transposition of the great arteries, in which the morphologic left ventricle is restored to the systemic circulation, is an effective surgical option. This case report describes an atrial switch technique without using supplemental material during the double-switch operation for congenitally corrected transposition of the great arteries associated with persistent left superior vena cava, with the systemic venous blood flow rerouted through the enlarged coronary sinus...
November 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29050351/the-prognostic-significance-of-preoperative-left-ventricular-diastolic-dysfunction-and-left-atrial-enlargement-on-acute-coronary-syndrome-in-kidney-transplantation
#16
Jin Ho Hwang, Jun-Bean Park, Yong-Jin Kim, Jung Nam An, Jaeseok Yang, Curie Ahn, In Mok Jung, Chun Soo Lim, Yon Su Kim, Young Hoon Kim, Jung Pyo Lee
Echocardiography is commonly performed as a screening test to evaluate perioperative risks before kidney transplantation. However, only limited data are available on echocardiographic parameters of left ventricular diastolic dysfunction (LVDD) and left atrial enlargement (LAE) on acute coronary syndrome and mortality in kidney transplant recipients. We reviewed 2779 adult recipients who underwent pretransplant echocardiography from 1997 to 2012. We divided the patients into two and four groups by two categories: LVDD grades 0-1 vs...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29045974/-echocardiographic-diagnosis-of-infracardiac-total-anomalous-pulmonary-venous-connection
#17
S T Ren, Y Wang, J H Zhou, J Long, C H Wang, D B Li, Y Z Huang
OBJECTIVE: To investigate the clinical usefulness of echocardiography in the diagnosis of infracardiac total anomalous pulmonary venous connection (ITAPVC) in neonates and infants. METHODS: Retrospective analysis on 8 patients with ITAPVC was performed using echocardiography between April 2006 and December 2016. There were 4 boys and 4 girls with a mean age of 79.8 days (ranging from 15 to 195 days). A combined scanning via parasternal, subcostal and apical acoustic windows had been employed to diagnose ITAPVC and to trace the course and site of the anomalous pulmonary venous drainage, and to confirm the direction of the inter-atrial shunt and enlargement of right atrium and right ventricle...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29041912/quality-of-life-questionnaire-predicts-poor-exercise-capacity-only-in-hfpef-and-not-in-hfref
#18
Artan Ahmeti, Michael Y Henein, Pranvera Ibrahimi, Shpend Elezi, Edmond Haliti, Afrim Poniku, Arlind Batalli, Gani Bajraktari
BACKGROUND: The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is the most widely used measure of quality of life (QoL) in HF patients. This prospective study aimed to assess the relationship between QoL and exercise capacity in HF patients. METHODS: The study subjects were 118 consecutive patients with chronic HF (62 ± 10 years, 57 females, in NYHA I-III). Patients answered a MLHFQ questionnaire in the same day of complete clinical, biochemical and echocardiographic assessment...
October 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29032886/prevalence-and-risk-factors-for-paroxysmal-atrial-fibrillation-and-flutter-detection-after-cryptogenic-ischemic-stroke
#19
Claire Carrazco, Daniel Golyan, Michael Kahen, Karen Black, Richard B Libman, Jeffrey M Katz
INTRODUCTION: Long-term cardiac monitoring with implantable loop recorders (ILRs) has revealed occult paroxysmal atrial fibrillation and flutter (PAF) in a substantial minority of cryptogenic ischemic stroke (CIS) patients. Herein, we aim to define the prevalence, clinical relevance, and risk factors for PAF detection following early poststroke ILR implantation. MATERIALS AND METHODS: A retrospective study of CIS patients (n = 100, mean age 65.8 years; 52.5% female) who underwent ILR insertion during, or soon after, index stroke admission...
October 9, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28987158/atrial-function-as-an-independent-predictor-of%C3%A2-postoperative-atrial-fibrillation-in-patients-undergoing-aortic-valve-surgery-for-severe-aortic%C3%A2-stenosis
#20
Matteo Pernigo, Giovanni Benfari, Giulia Geremia, Manjola Noni, Gianluca Borio, Gloria Mazzali, Mauro Zamboni, Francesco Onorati, Giuseppe Faggian, Corrado Vassanelli, Andrea Rossi
BACKGROUND: Postoperative atrial fibrillation (POAF) is a common, clinically relevant, but hardly predictable complication after surgical aortic valve replacement. The aim of this study was to test the role of preoperative left atrial longitudinal strain as a predictor of POAF in clinical practice. METHODS: Sixty patients scheduled for aortic valve replacement for severe isolated aortic stenosis, in stable sinus rhythm, were prospectively enrolled and underwent full clinical, biochemical, and transthoracic echocardiographic assessment on the day before surgery...
October 2017: Journal of the American Society of Echocardiography
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