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https://www.readbyqxmd.com/read/28219755/a-congenital-diverticulum-of-the-left-ventricular-apex-manifested-by-stroke-and-recurrent-ventricular-tachycardia
#1
Gabriela Dostálová, Tomáš Paleček, Petr Kuchynka, Štěpán Havránek, Martin Mašek, Zuzana Hlubocká, Debora Karetová, Dan Wichterle, Jaroslava Dušková, Jaroslav Lindner, Aleš Linhart
Ventricular outpouchings include acquired abnormalities (aneurysms and pseudoaneurysms) and congenital ventricular diverticula (CVD). CVD represent rare cardiac pathologies. Although CVD is often associated with other cardiac and extracardiac congenital anomalies, it can also be incidentally observed in otherwise healthy subjects. CVD may lead to significant morbidity and even have lethal consequences. We describe a case of arrhythmogenic left ventricle (LV) apical CVD revealed by cardiac magnetic resonance imaging (CMRI) after being initially overlooked by echocardiography...
February 4, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28210936/does-obesity-affect-the-non-invasive-measurement-of-cardiac-output-performed-by-electrical-cardiometry-in-children-and-adolescents
#2
Luis Altamirano-Diaz, Eva Welisch, Ralf Rauch, Michael Miller, Teresa Sohee Park, Kambiz Norozi
Electrical cardiometry (EC) is a non-invasive and inexpensive method for hemodynamic assessment and monitoring. However, its feasibility for widespread clinical use, especially for the obese population, has yet to be determined. In this study, we evaluated the agreement and reliability of EC compared to transthoracic Doppler echocardiography (TTE) in normal, overweight, and obese children and adolescents. We measured stroke volume (SV) and cardiac output (CO) of 131 participants using EC and TTE simultaneously...
February 17, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28203538/robotic-mitral-valve-repair-for-degenerative-posterior-leaflet-prolapse
#3
Hoda Javadikasgari, Rakesh M Suri, Bassman Tappuni, Ashley M Lowry, Tomislav Mihaljevic, Stephanie Mick, A Marc Gillinov
BACKGROUND: Robotic mitral valve (MV) repair is the least invasive surgical approach to the MV and provides unparalleled access to the valve. We sought to assess technical aspects and clinical outcomes of robotic MV repair for isolated posterior leaflet prolapse by examining the first 623 such cases performed in a tertiary care center. METHODS: We reviewed the first 623 patients (mean age 56±9.7 years) with isolated posterior leaflet prolapse who underwent robotic primary MV repair from 01/2006 to 11/2013...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203406/effects-of-recombinant-human-brain-natriuretic-peptide-on-the-prognosis-of-patients-with-acute-anterior-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention-a-prospective-multi-center-randomized-clinical-trial
#4
Zhi-Lin Miao, Ai-Jie Hou, Hong-Yun Zang, Ru-Gang Huang, Xiao-Qun Zheng, Hai-Long Lin, Wei Wang, Ping Hou, Fei Xia, Zhan-Quan Li
BACKGROUND: This study aims to investigate the effects of recombinant human brain natriuretic peptide (rhBNP) on serum enzyme data, cardiac function parameters and cardiovascular events in patients with acute anterior myocardial infarction (MI). METHODS: A total of 421 patients with acute anterior or extensive anterior MI were collected from 20 hospitals. These patients were randomly divided into two groups: rhBNP and control groups. Both groups of patients received primary percutaneous coronary intervention (PCI) within the effective time window...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28198938/left-atrial-deformation-analysis-in-patients-with-corrected-tetralogy-of-fallot-by-3d-speckle-tracking-echocardiography-from-the-magyar-path-study
#5
Kálmán Havasi, Péter Domsik, Anita Kalapos, Jackie S McGhie, Jolien W Roos-Hesselink, Tamás Forster, Attila Nemes
Background: Three-dimensional (3D) echocardiography coupled with speckle-tracking echocardiographic (STE) capability is a novel methodology which has been demontrated to be useful for the assessment of left atrial (LA) volumes and functional properties. There is increased scientific interest on myocardial deformation analysis in adult patients with corrected tetralogy of Fallot (cTOF). Objectives: To compare LA volumes, volume-based functional properties and strain parameters between cTOF patients and age- and gender-matched healthy controls...
February 13, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28198520/twelve-month-follow-up-of-left-atrial-appendage-occlusion-with-amplatzer-amulet
#6
Caroline Kleinecke, Jai-Wun Park, Martin Gödde, Konstantin Zintl, Steffen Schnupp, Johannes Brachmann
BACKGROUND: The Amplatzer Amulet (St. Jude Medical, Minneapolis, MN, USA) is a second generation Amplatzer device for left atrial appendage occlusion for stroke prophylaxis in patients with atrial fibrillation. This research sought to assess the clinical performance of the Amplatzer Amulet device and in follow up for 12 months. METHODS: In this single-center registry patients with atrial fibrillation and contraindication to oral anticoagulation underwent left atrial appendage occlusion (LAAO) with the Amplatzer Amulet device...
February 15, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28194115/low-level-laser-application-in-the-early-myocardial-infarction-stage-has-no-beneficial-role-in-heart-failure
#7
Martha T Manchini, Ednei L Antônio, José Antônio Silva Junior, Paulo de Tarso C de Carvalho, Regiane Albertini, Fernando C Pereira, Regiane Feliciano, Jairo Montemor, Stella S Vieira, Vanessa Grandinetti, Amanda Yoshizaki, Marcio Chaves, Móises P da Silva, Rafael do Nascimento de Lima, Danilo S Bocalini, Bruno L de Melo, Paulo J F Tucci, Andrey J Serra
Low-level laser therapy (LLLT) has been targeted as a promising approach that can mitigate post-infarction cardiac remodeling. There is some interesting evidence showing that the beneficial role of the LLLT could persist long-term even after the end of the application, but it remains to be systematically evaluated. Therefore, the present study aimed to test the hypothesis that LLLT beneficial effects in the early post-infarction cardiac remodeling could remain in overt heart failure even with the disruption of irradiations...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28191906/intracardiac-echocardiography-for-verification-for-left-atrial-appendage-thrombus-presence-detected-by-transesophageal-echocardiography-the-actionice-ii-study
#8
Jakub Baran, Beata Zaborska, Roman Piotrowski, Malgorzata Sikora-Frąc, Ewa Pilichowska-Paszkiet, Piotr Kułakowski
BACKGROUND: Transesophageal echocardiography (TEE) remains the gold standard for exclusion of left atrial appendage (LAA) thrombus in patients scheduled for direct electrical cardioversion (DEC) or atrial fibrillation (AF) ablation. Recently, intracardiac echocardiography (ICE) of the pulmonary artery (PA) has been shown to provide excellent LAA images and to be useful in verification of equivocal TEE findings. HYPOTHESIS: ICE of the PA may have a role in detecting false-positive TEE results...
February 13, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28188951/the-influence-of-adrenergic-stimulation-on-sex-differences-in-left-ventricular-twist-mechanics
#9
Alexandra M Williams, Rob E Shave, William S Cheyne, Neil D Eves
BACKGROUND: Sex differences in LV mechanics exist at rest and during acute physiological stress. Differences in cardiac autonomic and adrenergic control may contribute to sex differences in LV mechanics and LV hemodynamics. Accordingly, this study aimed to investigate sex differences in LV mechanics with altered adrenergic stimulation achieved through post handgrip exercise ischemia (PEI) and β1 -adrenergic receptor (AR) blockade. METHODS AND RESULTS: 20 males (23 ± 5 yr) and 20 females (22 ± 3 yr) were specifically matched for LV length (males: 8...
February 11, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28186939/cardiac-diagnostic-work-up-for-atrial-fibrillation-after-transient-ischaemic-attacks-in-england-and-wales-results-from-a-cross-sectional-survey
#10
Olivia Geraghty, Eleni Korompoki, Filippos T Filippidis, Anthony Rudd, Roland Veltkamp
OBJECTIVES: Transient ischaemic attacks (TIAs) are an important precursor of stroke. Atrial fibrillation (AF) is among the most dangerous aetiologies shared between TIAs and strokes. Detection of AF after TIAs is essential for the initiation of oral anticoagulants. We aimed to identify variations in the use of cardiac investigations used to detect AF and cardiac pathology in patients with TIA in the UK. SETTING: All TIA clinical leads in England and Wales received an invitation by email to participate in an online survey in February 2015...
November 10, 2016: BMJ Open
https://www.readbyqxmd.com/read/28183466/early-clinical-outcomes-after-transcatheter%C3%A2-aortic-valve-replacement-using-a-novel-self-expanding-bioprosthesis%C3%A2-in%C3%A2-patients-with-severe%C3%A2-aortic%C3%A2-stenosis-who-are-suboptimal%C3%A2-for%C3%A2-surgery-results-of-the-evolut-r-u-s-study
#11
Jeffrey J Popma, Michael J Reardon, Kamal Khabbaz, J Kevin Harrison, G Chad Hughes, Susheel Kodali, Isaac George, G Michael Deeb, Stan Chetcuti, Robert Kipperman, John Brown, Hongyan Qiao, James Slater, Mathew R Williams
OBJECTIVES: This study sought to evaluate this transcatheter aortic valve (TAV) bioprosthesis in patients who are poorly suitable for surgical aortic valve (AV) replacement. BACKGROUND: A novel self-expandable TAV bioprosthesis was designed to provide a low-profile delivery system, conformable annular sealing, and the ability to resheath and reposition during deployment. METHODS: The Evolut R U.S. study included 241 patients with severe aortic stenosis who were deemed to be at least high risk for surgery treated at 23 clinical sites in the United States...
February 13, 2017: JACC. Cardiovascular Interventions
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
#12
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/28176968/decreased-left-ventricular-stroke-volume-is-associated-with-low-grade-exercise-tolerance-in-patients-with-chronic-obstructive-pulmonary-disease
#13
Sumito Inoue, Yoko Shibata, Hiroyuki Kishi, Joji Nitobe, Tadateru Iwayama, Yoshinori Yashiro, Takako Nemoto, Kento Sato, Masamichi Sato, Tomomi Kimura, Akira Igarashi, Yoshikane Tokairin, Isao Kubota
BACKGROUND: Low-grade exercise tolerance is associated with a poor prognosis in patients with chronic obstructive pulmonary disease (COPD). The 6 min walk test (6MWT) is commonly used to evaluate exercise tolerance in patients with COPD. However, little is known regarding the relationship between cardiac function and exercise tolerance in patients with COPD. The aim of this study was to identify predictive factors in cardiac function for low-grade exercise tolerance in patients with stable COPD...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/28167498/myocardial-oxygen-consumption-and-efficiency-in-aortic-valve-stenosis-patients-with-and-without-heart-failure
#14
Nils Henrik Stubkjær Hansson, Jens Sörensen, Hendrik Johannes Harms, Won Yong Kim, Roni Nielsen, Lars P Tolbod, Jørgen Frøkiær, Kirsten Bouchelouche, Karen Kaae Dodt, Inger Sihm, Steen Hvitfeldt Poulsen, Henrik Wiggers
BACKGROUND: Myocardial oxygen consumption (MVO2) and its coupling to contractile work are fundamentals of cardiac function and may be involved causally in the transition from compensated left ventricular hypertrophy to failure. Nevertheless, these processes have not been studied previously in patients with aortic valve stenosis (AS). METHODS AND RESULTS: Participants underwent (11)C-acetate positron emission tomography, cardiovascular magnetic resonance, and echocardiography to measure MVO2 and myocardial external efficiency (MEE) defined as the ratio of left ventricular stroke work and the energy equivalent of MVO2...
February 6, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28163283/safety-and-efficacy-of-simultaneous-biplane-mode-of-3-dimensional-transesophageal-echocardiography-guided-antegrade-multiple-inflation-balloon-aortic-valvuloplasty-in-patients-with-severe-aortic-stenosis
#15
Kazuki Mizutani, Masahiko Hara, Hirotoshi Ishikawa, Shinsuke Nishimura, Asahiro Ito, Shinichi Iwata, Yosuke Takahashi, Kenichi Sugioka, Takashi Murakami, Toshihiko Shibata, Minoru Yoshiyama
BACKGROUND: Balloon aortic valvuloplasty (BAV) is resurging as a bridge treatment in patients with severe aortic stenosis (AS) with a dissemination of transcatheter aortic valve implantation. However, the significantly high periprocedural mortality and complication rates still limit the indications of BAV. Further efforts are needed to improve the safety and efficacy of BAV.Methods and Results:We retrospectively investigated the safety and efficacy of simultaneous biplane mode of 3-dimensional transesophageal echocardiography (biplane-TEE) guided antegrade transseptal multiple-inflation BAV, with gradual upsizing of the balloon, by enrolling 20 consecutive AS patients who underwent BAV...
February 4, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28157747/cardioembolic-stroke
#16
Cumara B O'Carroll, Kevin M Barrett
PURPOSE OF REVIEW: Cardioembolic stroke is common and disproportionately more disabling than nonembolic mechanisms of stroke. Its incidence is expected to rise because of the age-related incidence of atrial fibrillation and an aging population. This article summarizes the different causes of cardioembolism and outlines current management guidelines. RECENT FINDINGS: Since cardioembolic stroke is not a single disease entity, its diagnosis requires initial clinical suspicion and a comprehensive evaluation, including ECG, echocardiography, brain imaging, and cardiac monitoring...
February 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28154595/role-of-transesophageal-echocardiography-in-the-diagnosis-of-paradoxical-low-flow-low-gradient-severe-aortic-stenosis
#17
Muaz M Abudiab, Anil Pandit, Hari P Chaliki
BACKGROUND AND OBJECTIVES: Prior studies indicate that up to 35% of cases of severe aortic stenosis (AS) have paradoxical low flow, low gradient despite preserved left ventricular ejection fraction (LVEF). However, error in left ventricular outflow tract (LVOT) diameter may lead to misclassification. Herein, we determined whether measurement of LVOT diameter by transesophageal echocardiography (TEE) results in reclassification of cases to non-severe AS. SUBJECTS AND METHODS: Patients with severe AS with aortic valve area (AVA) <1 cm(2) by transthoracic echocardiography (TTE) within 6 months were studied...
January 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28153345/usefulness-of-the-mrwallets-scoring-system-to-predict-first-diagnosed-atrial-fibrillation-in-patients-with-ischemic-stroke
#18
Antonio Muscari, Andrea Bonfiglioli, Luca Faccioli, Marco Ghinelli, Donatella Magalotti, Francesco Manzetto, Anna Pontarin, Giovanni M Puddu, Luca Spinardi, Eleonora Tubertini, Marco Zoli
Some cryptogenic strokes are caused by undetected paroxysmal atrial fibrillation (AF) and could benefit from oral anticoagulation. In this study, we searched for echocardiographic parameters associated with first diagnosed AF, to form a scoring system for the identification of patients with AF. We examined 571 patients with ischemic stroke (72.7 ± 13.5 years, 50.6% women), subdivided into 4 groups: documented cause without AF, first diagnosed AF, known paroxysmal AF, and permanent AF. All patients underwent transthoracic echocardiography, brain computed tomography scan, carotid/vertebral ultrasound, and continuous electrocardiographic monitoring...
January 5, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28144714/-new-and-established-aspects-of-cardiological-diagnostics-using-tee-do-we-need-3d-technology-in-clinical-routine
#19
A Hagendorff, S Stoebe, D Jurisch, M Neef, M Metze, D Pfeiffer
In comparison to transthoracic echocardiography (TTE) transesophageal echocardiography (TEE) enables an acquisition of images with better spatial resolution due to the use of higher ultrasound frequencies. Thus, the morphology and function of cardiac structures can principally be analyzed better and more accurately with TEE than with TTE. In addition, using three-dimensional (3D) TEE data sets standardized sectional planes can be constructed by post-processing, which enables quantitative assessment of the target structures...
January 31, 2017: Herz
https://www.readbyqxmd.com/read/28132522/inhibition-of-nfe2l2-are-pathway-by-mitochondrial-ros-contributes-to-development-of-cardiomyopathy-and-left-ventricular-dysfunction-in-chagas-disease
#20
Jian-Jun Wen, Craig Porter, Nisha Jain Garg
AIMS: We investigated the effects of mitochondrial reactive oxygen species (mtROS) on NFE2L2 transcription factor activity during Trypanosoma cruzi (Tc) infection, and determined if enhancing the mtROS scavenging capacity preserved the heart function in Chagas disease. RESULTS: C57BL/6 wild type (WT, female) mice infected with Tc exhibited myocardial loss of mitochondrial membrane potential, complex-II driven coupled respiration, and 9-fold increase in mtROS production...
January 28, 2017: Antioxidants & Redox Signaling
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