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https://www.readbyqxmd.com/read/28229312/routine-18-f-fdg-pet-ct-does-not-detect-inflammation-in-the-left-atrium-in-patients-with-atrial-fibrillation
#1
Philipp S Lange, Nemanja Avramovic, Gerrit Frommeyer, Kristina Wasmer, Christian Pott, Lars Eckardt, Christian Wenning
Increasing evidence supports a role of inflammation in the development of atrial fibrillation (AF). However, direct evidence of persistent inflammatory activity in the atria of AF patients is scarce. In this study, we used 18-Fluor-Deoxyglucose positron emission tomography computed tomography ((18)F-FDG PET/CT) to determine atrial inflammation in patients with and without AF. Retrospectively, (18)F-FDG PET/CT scans were analyzed. 37 patients with a history of AF were compared to an age and sex matched control group with no history of AF...
February 22, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28228391/penetrating-mitral-annular-abscess-ruptured-into-the-left-atrium-a-rare-cause-of-mitral-regurgitation
#2
Gopal Chandra Ghosh, Amal Paul, Anoop George Alex, Paul V George
No abstract text is available yet for this article.
February 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28226541/combined-reconstruction-of-atrial-morphology-and-paracardial-fat-depositions-to-study-remodeling-in-atrial-fibrillation
#3
N Popovic, P Haemers, R Willems, P Claus, N Popovic, P Haemers, R Willems, P Claus, P Claus, P Haemers, N Popovic, R Willems
Atrial fibrillation (AF) is the most frequent sustained cardiac arrhythmia. AF is shown to be a progressive disease, which is strongly associated with important structural (morphological and histological), electrical and mechanical remodeling of the left atrium (LA). Adipose tissue accumulation has been shown to be a risk factor in AF. We set out to explore the connection between adipose tissue coverage of the LA surface, for both the complete LA and specific regions and the progression of AF. In this study we propose a methodology to study the regional coverage of the left-atrial wall with adipose tissue based on magnetic resonance data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217939/pitx2-dependent-gene-regulation-in-atrial-fibrillation-and-rhythm-control
#4
Fahima Syeda, Paulus Kirchhof, Larissa Fabritz
Atrial fibrillation (AF) is a common arrhythmia. Better prevention and treatment of AF are needed to reduce AF-associated morbidity and mortality. There are several major mechanisms that cause AF in patients, including a genetic predisposition to develop AF. Genome-wide association studies (GWAS) have identified genetic variants associated with AF populations, with the strongest hits clustering on chromosome 4q25, close to the gene for the homeobox transcription factor PITX2. The effect of these common gene variants on cardiac PITX2 mRNA is currently under study...
February 19, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28211132/comparison-of-left-atrial-voltage-between-sinus-rhythm-and-atrial-fibrillation-in-association-with-electrogram-wave-form
#5
Masaharu Masuda, Masashi Fujita, Osamu Iida, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Takashi Kanda, Akihiro Sunaga, Takuya Tsujimura, Yasuhiro Matsuda, Takuya Ohashi, Masaaki Uematsu
BACKGROUND: The efficacy of low-voltage-guided ablation in addition to pulmonary vein (PV) isolation for atrial fibrillation (AF) has been reported with voltage mapping being performed during sinus rhythm (SR) or AF. The study aimed to compare the left atrial voltage between SR and AF in association with the electrogram wave form. METHODS: This prospective observational study included 30 consecutive patients with persistent AF. After completion of PV isolation, electrogram points were taken during both SR and AF at the identical locations evenly throughout the left atrium...
February 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28209960/-right-sided-pneumonectomy-with-left-atrium-resection-under-cardiopulmonary-bypass-in-the-patient-with-lung-cancer-the-first-case-in-russia
#6
Yu V Belov, R N Komarov, V D Parshin, A G Yavorovsky, S V Chernyavsky, G V Mnatsakanyan
No abstract text is available yet for this article.
2017: Khirurgiia
https://www.readbyqxmd.com/read/28207162/plasma-oxidative-stress-and-inflammatory-biomarkers-are-associated-with-the-sizes-of-the-left-atrium-and-pulmonary-vein-in-atrial-fibrillation-patients
#7
Jin-Yi Li, Yan He, Hong-Hong Ke, Yu Jin, Zhi-Yuan Jiang, Guo-Qiang Zhong
BACKGROUND: Oxidative stress and inflammatory processes are responsible for the pathogenesis of AF, but their relationship with the sizes of the LA and PVs in AF patients remains unclear. HYPOTHESIS: Oxidative stress and inflammatory processes are associated with the sizes of the LA and PVs in AF patients. METHODS: 82 AF patients were compared to 30 control patients by using a case-control study design. Oxidative stress, inflammatory biomarkers and the sizes of the LA and PVs were detected...
February 16, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28205119/use-of-three-dimensional-computed-tomography-overlay-for-real-time-cryoballoon-ablation-in-atrial-fibrillation-reduces-radiation-dose-and-contrast-dye
#8
B Oude Velthuis, M Molenaar, H G Reinhart Dorman, J Y Stevenhagen, M F Scholten, J van der Palen, J M van Opstal
AIMS: Cryoballoon pulmonary vein (PV) isolation in patients with atrial fibrillation has proven to be effective in short-term and long-term follow-up. To visualise the PV anatomy, pre-ablation contrast pulmonary venography is commonly performed. Three-dimensional (3D) computed tomography (CT) overlay is a new technique creating a live 3D image of the left atrium by integrating a previously obtained CT scan during fluoroscopy. To evaluate the benefits of 3D CT overlay during cryoballoon ablation, we studied the use of 3D CT overlay versus contrast pulmonary venography in a randomised fashion in patients with paroxysmal atrial fibrillation undergoing cryoballoon PV isolation...
February 15, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28204434/isolation-of-the-posterior-left-atrium-for-patients-with-persistent-atrial-fibrillation-routine-adenosine-challenge-for-dormant-posterior-left-atrial-conduction-improves-long-term-outcome
#9
Alex J A McLellan, Sandeep Prabhu, Alex Voskoboinik, Michael C G Wong, Tomos E Walters, Bhupesh Pathik, Gwilym M Morris, Ashley Nisbet, Geoffrey Lee, Joseph B Morton, Jonathan M Kalman, Peter M Kistler
No abstract text is available yet for this article.
February 15, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28202256/transseptal-puncture-review-of-anatomy-techniques-complications-and-challenges
#10
REVIEW
Barry O'Brien, Haroon Zafar, Simon De Freitas, Faisal Sharif
In recent years, the transseptal puncture approach has enabled passage of increasingly large and complex devices into the left atrium. Traditional tools remain effective in creating and dilating the initial puncture, with an acceptable safety profile. Even for skilled operators, the procedure is technically demanding and requires sound understanding of atrial anatomy. Intracardiac echocardiography is useful in cases of previous septal repair, poorly defined fossa ovalis anatomy or when considering patent foramen ovale portal crossing...
February 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28202247/radiological-characteristics-of-atrial-myxoma-in-cardiac-computed-tomography
#11
Kawa Haji, Arthur Nasis
BACKGROUND: Although the primary role of Cardiac Computed Tomography (CCT) is assessment of the coronary arteries, the technique also allows detailed examination of cardiac structures and other cardiac pathologies including cardiac myxoma. However, limited data exists regarding the CCT characteristics of cardiac myxoma. OBJECTIVE: To describe the radiological characteristics of a series of cardiac myxomas in CCT. METHODS: We retrospectively identified all patients at our tertiary urban referral centre with cardiac myxoma on CCT over a seven-year period between July 2008 and July 2015...
February 7, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28199804/gas-in-the-left-atrium-and-ventricle
#12
Mary Thomson, Fredy El Sakr
A 60-year-old man with coronary artery disease, ischemic cardiomyopathy with biventricular implantable cardioverter–defibrillator placement, and atrial fibrillation presented with chest pain and numbness in both arms. During his initial presentation, he suddenly collapsed and became unresponsive...
February 16, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28197285/percutaneous-intervention-of-a-persistent-left-superior-vena-cava-draining-into-left-pulmonary-vein-and-coarctation-of-the-aorta
#13
Saad Al Bugami, Mohammed Althobaiti, Tarek Momenah, Jamilah Alrahimi, Wael Al Kashkari
We describe a 54-year-old male with history of type II DM, hypertension and dyslipidemia during admission for bronchopneumonia discovered to have coarctation of the aorta and a persistent left superior vena cava (PLSVC) draining into the left atrium through the left superior pulmonary vein. The latter was thought to contribute to a transient ischemic attack and an episode of chest pain resulting in ST-segment elevation in the inferior leads. He was treated with coarctation stenting and percutaneous exclusion of the PLSVC with a vascular plug...
August 2016: Cardiology Research
https://www.readbyqxmd.com/read/28197278/patent-ductus-arteriosus-with-eisenmenger-syndrome-difficult-diagnosis-made-easily-with-saline-contrast-echocardiography
#14
Prakash Kumar, Santosh Kumar Sinha, Umeshwar Pandey, Ramesh Thakur, Chandra Mohan Varma, Mohit Sachan, Amit Goel
The diagnosis of patent ductus arteriosus (PDA) with Eisenmenger syndrome is difficult. We report a case of 35-year-old male who came to our outpatient department (OPD) for evaluation of repeated hemoptysis and dyspnea on exertion. He had already completed two courses of ATT. On examination, grade 3 ejection systolic murmur was audible over precordium. Transthoracic echocardiography (TTE) showed enlargement of right atrium (RA) and right ventricular (RV) with severe tricuspid regurgitation (TR). On agitated saline contrast injection, agitated saline was seen in pulmonary artery followed by filling of abdominal aorta without filling of ascending aorta, thus confirming the diagnosis of right to left shunt with PDA...
June 2016: Cardiology Research
https://www.readbyqxmd.com/read/28196557/anomalous-drainage-of-isolated-superior-caval-vein-to-the-left-atrium-the-oldest-reported-unrepaired-case
#15
Maria Boutsikou, Dudley J Pennell, Eva Nyktari
Isolated right superior caval vein drainage into the left atrium is a rare congenital cardiac anomaly usually presenting with hypoxaemia and cyanosis. Surgical repair is the definitive treatment for this condition. In this report, we present the case of a 72-year-old patient with uncorrected anomalous drainage of a right superior caval vein into the left atrium, first diagnosed in the 1960s. To the best of our knowledge, this is the oldest reported unrepaired case.
February 15, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28183844/association-between-posterior-left-atrial-adipose-tissue-mass-and-atrial-fibrillation
#16
Alexander R van Rosendael, Aukelien C Dimitriu-Leen, Philippe J van Rosendael, Melissa Leung, Jeff M Smit, Antti Saraste, Juhani Knuuti, Rob J van der Geest, Britt W H van der Arend, Erik W van Zwet, Arthur J Scholte, Victoria Delgado, Jeroen J Bax
BACKGROUND: Epicardial adipose tissue located close to the atrial wall can change the electric conduction of the left atrium, potentially leading to atrial fibrillation (AF). The aim of this study was to assess whether an increased atrial adipose tissue mass posterior to the left atrium is related to AF independent of demographical and cardiovascular risk factors. METHODS AND RESULTS: Two hundred patients with AF and 200 patients without AF who underwent computed tomographic angiography were included...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28179613/left-atrial-appendage-thrombi-formation-in-japanese-non-valvular-atrial-fibrillation-patients-during-anticoagulation-therapy%C3%A3-warfarin-vs-direct-oral-anticoagulants
#17
Mihoko Kawabata, Masahiko Goya, Takeshi Sasaki, Shingo Maeda, Yasuhiro Shirai, Takuro Nishimura, Takakatsu Yoshitake, Shinya Shiohira, Mitsuaki Isobe, Kenzo Hirao
BACKGROUND: Atrial fibrillation (AF) is a common cardiac arrhythmia, associated with increased cardiovascular morbidity and mortality including thromboembolic events. The aims of this study were to assess the prevalence of left atrial appendage (LAA) thrombi in Japanese non-valvular atrial fibrillation (NVAF) patients undergoing preprocedural transesophageal echocardiography (TEE) during anticoagulation therapy, and to compare the efficacy of warfarin and direct oral anticoagulants (DOAC)...
February 7, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28176373/management-of-massive-thrombus-formation-in-a-giant-left-atrium
#18
Noell Fasol, Berit Bode, Xue Li, Anneli Seppälä-Lindroos, Roland Fasol
No abstract text is available yet for this article.
February 8, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28169085/long-term-antiarrhythmic-effects-of-thrombolytic-therapy-in-pulmonary-embolism
#19
Mert İlker Hayıroğlu, Muhammed Keskin, Ahmet Okan Uzun, Ahmet İlker Tekkeşin, Şahin Avşar, Ahmet Öz, Özlem Yıldırımtürk, Barış Güngör, Göksel Çinier, Ahmet Taha Alper
BACKGROUND: The role of thrombolytic therapy in acute pulmonary embolism patients is still controversial considering the occurrence of arrhythmias. Short-term effects of thrombolytics are well-known whereas long-term effects on cardiac electrophysiology have not been reported before. The objective of our study was to assess the arrhythmic differences in pulmonary embolism patients who received thrombolytics followed by anticoagulation or anticoagulation alone. METHODS: Sixty patients who received thrombolytic therapy followed by anticoagulation (group 1) and 60 patients who received anticoagulation alone (group 2) were included in this retrospective, single-centre observational study...
January 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28163437/pseudoaneurysm-of-the-left-atrium-following-infective-endocarditis
#20
Devi A Manuel, Bino John Sahayo, Viji Samuel Thomson, Jacob Jose
Transthoracic echocardiogram of a 3-year-old child showed a hypoechoic cavity in the posterior wall of the left atrium communicating with the left ventricle through an orifice in the mitral annulus, suggestive of pseudoaneurysm (Ps), probably the result of infective endocarditis. Three-dimensional echocardiography was helpful to confirm the diagnosis and assess the anatomical relationship of the Ps.
January 2017: Annals of Pediatric Cardiology
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