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Left atrial dilatation

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https://www.readbyqxmd.com/read/28927559/association-of-aortic-root-dilation-from-early-adulthood-to-middle-age-with-cardiac-structure-and-function-the-cardia-study
#1
Chike C Nwabuo, Henrique T Moreira, Henrique D Vasconcellos, Bharath Ambale-Venkatesh, Kihei Yoneyama, Yoshiaki Ohyama, Ravi K Sharma, Anderson C Armstrong, Mohammed R Ostovaneh, Cora E Lewis, Kiang Liu, Pamela J Schreiner, Kofo O Ogunyankin, Samuel S Gidding, João A C Lima
BACKGROUND: The human aorta dilates with advancing age. However, the association between progressive aortic dilation with aging and cardiac remodeling has not been established in studies of community-dwelling adults. The aim of this study was to test the hypothesis that there would be a relationship between aortic size increase over the early adult life span with left ventricular (LV) structural remodeling and subclinical LV dysfunction in middle age, even in the absence of overt cardiovascular and valvular disease...
September 15, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28924118/atrial-arrhythmia-ablation-in-adult-congenital-heart-disease-with-a-persistent-left-side-superior-vena-cava
#2
Shinya Yamada, Li-Wei Lo, Yenn-Jiang Lin, Atul Prabhu, Shih-Ann Chen
We herein report a case of atrial tachycardia (AT) originating from the dilated coronary sinus (CS) connected to a persistent left superior vena cava. The earliest activation site of AT was localized at the superior CS ostium, identified using a novel ultra-rapid high-density mapping system (Rhythmia™). Successful ablation was performed at the corresponding position. This report demonstrated the utility of an ultra-rapid high-density mapping system in identifying arrhythmogenic foci in adult cases of congenital heart disease...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28919631/right-atrial-myxoma-an-uncommon-presentation
#3
S K Shah, M Acharya, S I Alam, M A Hossain, M Aftabuddin
There are two types of tumors found in the cardiac chamber. These are divided into primary intra-cardiac tumors and secondary intra-cardiac tumors. Primary intra cardiac tumors are rare and among them 29% are myxomas. Majority of them are found in the left atrium. Here, we report a case of a myxoma in the right atrium with hepatomegaly and Hepatitis B virus infection. The coexistence of all these conditions is very rare. A 52 years old patient presented with history of shortness of breath on exertion along with fever and generalized weakness for 6 months which aggravated lately for last 2 months...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28915697/preoperative-assessment-of-mitral-valve-abnormalities-in-left-atrial-myxoma-patients-using-cardiac-ct
#4
Jing Chen, Zhi-Gang Yang, En-Sen Ma, Qin Zhang, Xi Liu, Ying-Kun Guo
BACKGROUND: To retrospectively evaluate mitral valve abnormality in left atrial myxoma patients by using cardiac computed tomography (CT). MATERIAL AND METHODS: Cardiac CT was performed in 56 patients with left atrial myxoma and 50 controls. Tumor and mitral valve characteristics were analyzed. The mitral valve parameters differences were compared between patients with myxoma and controls, myxoma with or without mitral valve obstruction, different obstruction degrees, respectively...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28890470/circulating-angptl2-levels-increase-in-humans-and-mice-exhibiting-cardiac-dysfunction
#5
Zhe Tian, Keishi Miyata, Jun Morinaga, Haruki Horiguchi, Tsuyoshi Kadomatsu, Motoyoshi Endo, Jiabin Zhao, Shunshun Zhu, Taichi Sugizaki, Michio Sato, Kazutoyo Terada, Takahiro Okumura, Toyoaki Murohara, Yuichi Oike
BACKGROUND: Recently, it was reported that angiopoietin-like protein 2 (ANGPTL2) secreted from a pathologically stressed heart accelerates cardiac dysfunction in an autocrine/paracrine manner, and that suppression of ANGPTL2 production in the heart restored cardiac function and myocardial energy metabolism, thereby blocking heart failure (HF) development. Interestingly, circulating ANGPTL2 concentrations reportedly increase in HF patients, suggesting a possible endocrine effect on cardiac dysfunction...
September 8, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28889828/atrial-septal-defect-morphology-and-stenting-in-hypoplastic-left-heart-syndrome-after-hybrid-palliation
#6
Lilia Oreto, Giuseppe Mandraffino, Lucia Manuri, Michele B Saitta, Salvatore Agati, Concetta Zito, Fiore S Iorio, Scipione Carerj, Paolo Guccione
Aims The aim of this study was to describe atrial septal defect morphology in hypoplastic left heart syndrome, to report the incidence of restrictiveness and its relationship with defect morphology, to correlate restriction with midterm outcome, and to describe our interventional approach to restrictive defect. Methods and results From 2011 to 2015, 31 neonates with hypoplastic left heart syndrome underwent hybrid procedure with pulmonary artery banding and ductal stenting at our Institution. Restrictive physiology of the atrial septal defect was based on Doppler gradient >6 mmHg through the defect and on clinical signs of pulmonary hypertension...
September 11, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28888352/high-fat-diet-aggravates-atrial-and-ventricular-remodeling-of-hypertensive-heart-disease-in-aging-rats
#7
Yi-Lin Shiou, I-Chieh Huang, Hsin-Ting Lin, Hsiang-Chun Lee
BACKGROUND/PURPOSE: Left ventricular hypertrophy is a major cause of heart failure in aging population. This study is to determine whether an excess dietary fat is lipotoxic or lipoprotein to the hypertrophic aging heart. METHODS: At 44-week-old, a normal chow (12% fat) was replaced a high-fat diet (HFD; 45% fat) for randomly selective spontaneously hypertensive rats (SHR + HFD, n = 6) and Wistar-Kyoto rats (WKY + HFD, n = 6, normotensive control). Others (SHR, n = 11; WKY, n = 10) were continuously fed with normal diets...
September 6, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28887041/partial-anomalous-pulmonary-venous-connection-in-a-dog
#8
Chloe L Thorn, Naomi R Ford, Meg M Sleeper
A 2-year-old male intact Belgian Malinois was presented for exercise intolerance. A grade III/VI left basilar systolic murmur was detected. Echocardiography revealed moderate right atrial and ventricular dilation and increased pulmonic outflow velocity. Thoracic radiographs showed right heart enlargement and a dilated caudal vena cava. In addition, on the left lateral projection, an enlarged aberrant right cranial pulmonary lobar vein was suspected to be diverging ventrally from the course of the right cranial lobar bronchus and inserting more ventrally than normal in the region of the right atrium...
September 5, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28885097/predictors-of-a-high-defibrillation-threshold-test-during-routine-icd-implantation
#9
B Al-Atia, B Vandenberk, G Vörös, C Garweg, J Ector, R Willems
BACKGROUND: There is growing evidence that routine defibrillation threshold (DFT) testing during implantable cardioverter defibrillator (ICD) implantation is not necessary. However a small group of patients might be at risk if no DFT testing is performed. METHODS: Patients with a new pectoral ICD implantation in our hospital between 2006 and 2014 were included in a retrospective registry. A clinical high DFT was defined as a safety margin <10 J of the maximal device output...
September 8, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28884922/congenital-heart-defects-in-molecularly-proven-kabuki-syndrome-patients
#10
Maria Cristina Digilio, Maria Gnazzo, Francesca Lepri, Maria Lisa Dentici, Elisa Pisaneschi, Anwar Baban, Chiara Passarelli, Rossella Capolino, Adriano Angioni, Antonio Novelli, Bruno Marino, Bruno Dallapiccola
The prevalence of congenital heart defects (CHD) in Kabuki syndrome ranges from 28% to 80%. Between January 2012 and December 2015, 28 patients had a molecularly proven diagnosis of Kabuki syndrome. Pathogenic variants in KMT2D (MLL2) were detected in 27 patients, and in KDM6A gene in one. CHD was diagnosed in 19/27 (70%) patients with KMT2D (MLL2) variant, while the single patient with KDM6A change had a normal heart. The anatomic types among patients with CHD included aortic coarctation (4/19 = 21%) alone or associated with an additional CHD, bicuspid aortic valve (4/19 = 21%) alone or associated with an additional CHD, perimembranous subaortic ventricular septal defect (3/19 = 16%), atrial septal defect ostium secundum type (3/19 = 16%), conotruncal heart defects (3/19 = 16%)...
September 8, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28879657/an-exploratory-investigation-of-echocardiographic-parameters-and-the-effects-of-posture-on-cardiac-structure-and-function-in-the-livingstone-s-fruit-bat-pteropus-livingstonii
#11
Aimee L Drane, Robert Shave, Andrew Routh, Alberto Barbon
There is growing evidence that dilated cardiomyopathy may be a major cause of death in captive Livingstone's fruit bats (Pteropus livingstonii). Therefore, the primary aim of this prospective, exploratory study was to examine whether a systematic cardiac ultrasound protocol is feasible in this critically endangered species and to report basic measures of cardiac structure and function from a cohort of apparently healthy bats. A secondary aim was to test the effect posture (dorsal recumbency vs. roosting) has upon cardiac function in this species...
September 6, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28878203/biventricular-cardiac-hypertrophy-in-a-patient-with-primary-aldosteronism-and-atrial-septal-defect
#12
Tjokorda Gde Dalem Pemayun, Ridho M Naibaho, Muhammad Achmad Sungkar
BACKGROUND Primary aldosteronism can be caused by adrenocortical adenoma and is usually associated with left ventricular hypertrophy. Biventricular cardiac hypertrophy and heart failure in the presence of a pre-existing atrial septal defect (ASD) are a rare association of primary aldosteronism. CASE REPORT A 33-year-old woman with resistant hypertension and refractory hypokalemia presented with signs and symptoms of heart failure. She had previously been diagnosed having a right adrenal tumor and ostium secundum type ASD...
September 7, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28867513/clinical-and-prognostic-implications-of-methods-and-partition-values-used-to-assess-left-atrial-volume-by-two-dimensional-echocardiography
#13
Elena Surkova, Luigi P Badano, Davide Genovese, Giacomo Cavalli, Corrado Lanera, Jurate Bidviene, Patrizia Aruta, Chiara Palermo, Sabino Iliceto, Denisa Muraru
BACKGROUND: The 2015 American Society of Echocardiography/European Association of Cardiovascular Imaging recommendations for chamber quantification suggest new abnormality threshold and severity partition values for left atrial (LA) volume that are equally valid for the biplane method of disk (MOD) summation and the area-length method (ALM). However, they have never been clinically validated. Thus, we compared the clinical and prognostic impact of LA volume assessed by MOD and ALM by using both the 2015 and 2005 abnormality thresholds...
August 31, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28862787/panoramic-atrial-mapping-with-basket-catheters-a-quantitative-analysis-to-optimize-practice-patient-selection-and-catheter-choice
#14
Shohreh Honarbakhsh, Richard J Schilling, Rui Providência, Gurpreet Dhillon, Vinit Sawhney, Claire A Martin, Emily Keating, Malcolm Finlay, Syed Ahsan, Anthony Chow, Mark J Earley, Ross J Hunter
INTRODUCTION: Panoramic mapping with basket catheters have been used to map atrial fibrillation (AF). However, the limited tissue contact and coverage achieved has raised concerns. METHODS AND RESULTS: Patients undergoing catheter ablation for atrial tachycardia (AT) and persistent AF were recruited. Unipolar signals were recorded with the Constellation or FIRMap catheters. The proportion and distribution of anatomical coverage by the catheters was determined and tissue contact achieved measured...
September 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28852577/sequential-venous-percutaneous-transluminal-angioplasty-and-balloon-dilatation-of-the-interatrial-septum-during-percutaneous-edge-to-edge-mitral-valve-repair
#15
Rezo Jorbenadze, Johannes Patzelt, Meinrad Gawaz, Peter Seizer, Harald F Langer
Percutaneous edge-to-edge mitral valve repair (PMVR) is widely used for selected, high-risk patients with severe mitral valve regurgitation (MR). This report describes a case of 81-year-old woman presenting with severe and highly symptomatic mitral valve regurgitation (MR) caused by a flail of the posterior mitral valve leaflet (PML). PMVR turned out to be challenging in this patient because of a stenosis and tortuosity of both iliac veins as well as sclerosis of the interatrial septum, precluding the vascular and left atrial access by standard methods, respectively...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28830298/left-atrial-volume-index-in-patients-with-heart-failure-and-severely-impaired-left-ventricular-systolic-function-the-role-of-established-echocardiographic-parameters-circulating-cystatin-c-and-galectin-3
#16
Christos Zivlas, Filippos Triposkiadis, Stelios Psarras, Gregory Giamouzis, Ioannis Skoularigis, Stavros Chryssanthopoulos, Alkistis Kapelouzou, Steve Ramcharitar, Edward Barnes, Evangelos Papasteriadis, Dennis Cokkinos
Backround: Left atrial (LA) enlargement plays an important role in the development of heart failure (HF) and is a robust prognostic factor. Fibrotic processes have also been advocated to evoke HF through finite signalling proteins. METHODS: We examined the association of two such proteins, cystatin C (CysC) and galectin-3 (Gal-3), and other clinical, echocardiographic and biochemical parameters with LA volume index (LAVi) in patients with HF with severely impaired left ventricular ejection fraction (LVEF)...
August 1, 2017: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/28803639/atrial-fibrillation-and-stroke-as-initial-manifestations-of-painless-type-a-aortic-dissection
#17
Claudia Stöllberger, Lilian Schäffl-Doweik, Maria Korn, Josef Finsterer
Aortic dissection is diagnostically challenging, especially in pain-free patients. Detection of acute ischemic stroke secondary to painless aortic dissection is a challenge for emergency physicians and neurologists. We report a previously healthy 58-years old female, admitted because of nausea, dizziness, somnolence, a left-sided hemiparesis and arterial hypotension. The electrocardiogram showed atrial fibrillation with ST-elevations and ST-depressions. Perfusion CT-imaging showed a dilatation of the aortic arch and intraluminal structures indicating an intima flap of aortic dissection...
July 21, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28793143/intraoperative-diagnosis-of-anderson-fabry-disease-in-patients-with-obstructive-hypertrophic-cardiomyopathy-undergoing-surgical-myectomy
#18
Franco Cecchi, Maria Iascone, Niccolò Maurizi, Laura Pezzoli, Irene Binaco, Elena Biagini, Maria Laura Fibbi, Iacopo Olivotto, Federico Pieruzzi, Ana Fruntelata, Lucian Dorobantu, Claudio Rapezzi, Paolo Ferrazzi
Importance: Diagnostic screening for Anderson-Fabry cardiomyopathy (AFC) is performed in the presence of specific clinical red flags in patients with hypertrophic cardiomyopathy (HCM) older than 25 years. However, left ventricular outflow tract obstruction (LVOTO) has been traditionally considered an exclusion criteria for AFC. Objective: To examine a series of patients diagnosed with HCM and severe basal LVOTO undergoing myectomy in whom the diagnosis of AFC was suspected by the cardiac surgeon intraoperatively and confirmed by histological and genetic examinations...
August 9, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28791992/-morphological-features-of-the-myocardium-of-the-atrial-appendages-in-patients-with-different-forms-of-atrial-fibrillation
#19
T V Sukhacheva, V A Vaskovsky, A Sh Revishvili, R A Serov
AIM: to analyze the morphological features of the myocardium of the atrial appendages in patients with different forms of atrial fibrillation (AF) and to compare the findings with the clinical parameters of patients. MATERIAL AND METHODS: Light and electron microscopies were used to examine the myocardium of the atrial appendages in adult patients with paroxysmal (PAF), persistent (PrAF), or long-standing persistent atrial fibrillation (LPAF) and in comparison group patients with sinus rhythm without history of AF...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28780251/convexity-subarachnoid-hemorrhage-due-to-cardioembolic-stroke-in-a-woman-with-thyrotoxicosis-%C3%AE-case-report
#20
Ioanna Spanou, Sophia Vassilopoulou, Eleni Koroboki, Argyro Tountopoulou, Georgios Velonakis, Dimos Dimitrios Mitsikostas
BACKGROUND: Non-traumatic convexity subarachnoid hemorrhage (cSAH) is a rarely reported condition with a wide spectrum of etiologies. Cerebral ischemia secondary to extracranial or intracranial atherosclerotic disease has been identified as a relatively uncommon cause of cSAH. CASE REPORT: We report a case of cSAH caused by cardioembolic stroke. A 69-year old female patient developed suddenly left-sided face and body weakness and numbness and visual neglect on the left...
August 2, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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