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State of the art cardiology

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https://www.readbyqxmd.com/read/29065642/the-use-of-optical-coherence-tomography-in-dental-diagnostics-a-state-of-the-art-review
#1
REVIEW
Monika Machoy, Julia Seeliger, Liliana Szyszka-Sommerfeld, Robert Koprowski, Tomasz Gedrange, Krzysztof Woźniak
Optical coherence tomography provides sections of tissues in a noncontact and noninvasive manner. The device measures the time delay and intensity of the light scattered or reflected from biological tissues, which results in tomographic imaging of their internal structure. This is achieved by scanning tissues at a resolution ranging from 1 to 15 μm. OCT enables real-time in situ imaging of tissues without the need for biopsy, histological procedures, or the use of X-rays, so it can be used in many fields of medicine...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/28844031/state-of-the-art-evolving-concepts-in-the-treatment-of-heavily-calcified-and-undilatable-coronary-stenoses-from-debulking-to-plaque-modification-a-40-year-long-journey
#2
Emanuele Barbato, Evan Shlofmitz, Anastasios Milkas, Richard Shlofmitz, Lorenzo Azzalini, Antonio Colombo
Since the first balloon angioplasty by Andreas Grüntzig 40 years ago, interventional cardiology has witnessed the introduction of countless tools and techniques that have significantly contributed to broadening the application of percutaneous coronary interventions (PCI) in unprecedented anatomic settings. Heavily calcified, fibrotic coronary stenosis has traditionally represented a very challenging scenario for PCI, and a very common indication for surgical revascularisation. This was mostly due to the difficulty in adequately dilating these lesions and/or to the inability to deliver and implant stents appropriately, which is often associated with high rates of procedural complications and suboptimal long-term clinical outcomes...
August 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28844029/state-of-the-art-pressure-wire-and-coronary-functional-assessment
#3
Mauro Echavarría-Pinto, Carlos Collet, Javier Escaned, Jan J Piek, Patrick W Serruys
The pressure wire has revolutionised cardiology by moving the focus of revascularisation from anatomy to physiology. This review provides a comprehensive viewpoint on the foundations of the field of intracoronary physiology, with emphasis on the development and clinical evidence of fractional flow reserve (FFR). Additionally, we critically appraise clinical decision making based on the evolving area of resting coronary physiology. The emerging role of coronary flow reserve and its complementariness with FFR is also discussed, and the importance of the invasive assessment of the coronary microcirculation in outlining prognosis is put into perspective...
August 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28783626/fast-and-fully-automatic-left-ventricular-segmentation-and-tracking-in-echocardiography-using-shape-based-b-spline-explicit-active-surfaces
#4
Joao Pedrosa, Sandro Queiros, Olivier Bernard, Jan Engvall, Thor Edvardsen, Eike Nagel, Jan Dhooge
Cardiac volume/function assessment remains a critical step in daily cardiology and 3D ultrasound plays an increasingly important role. Fully automatic left ventricular segmentation is, however, a challenging task due to the artifacts and low contrast-to-noise ratio of ultrasound imaging. In the present work, a fast and fully automatic framework for full cycle endocardial left ventricle segmentation is proposed. This approach couples the advantages of the B-spline explicit active surfaces framework, a purely image information approach, to those of statistical shape models to give prior information about the expected shape for an accurate segmentation...
August 2, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28730415/spect-workhorse-of-state-of-the-art-nuclear-cardiology
#5
Milena J Henzlova
No abstract text is available yet for this article.
July 20, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28700788/optimal-medical-therapy-for-known-coronary-artery-disease-a-review
#6
Raymond J Gibbons, Todd D Miller
Importance: This review examines the current state-of-the-art optimal medical therapy (OMT) for patients with known coronary artery disease. This therapy, which is sometimes labeled as secondary prevention, is effective in preventing recurrent events and is recommended by the American College of Cardiology Foundation/American Heart Association guidelines. Optimal medical therapy is of recognized public health benefit. Observations: The available evidence from broad patient populations, contemporary randomized trials, and multiple recent studies with pharmacy records indicates that the delivery of OMT is far from ideal...
September 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28562789/nursing-in-cardiology-state-of-the-art-and-frontiers-of-knowledge
#7
EDITORIAL
Alba Lúcia Bottura Leite de Barros, Agueda Maria Ruiz Zimmer Cavalcante
No abstract text is available yet for this article.
May 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28559848/efficient-fetal-maternal-ecg-signal-separation-from-two-channel-maternal-abdominal-ecg-via-diffusion-based-channel-selection
#8
Ruilin Li, Martin G Frasch, Hau-Tieng Wu
There is a need for affordable, widely deployable maternal-fetal ECG monitors to improve maternal and fetal health during pregnancy and delivery. Based on the diffusion-based channel selection, here we present the mathematical formalism and clinical validation of an algorithm capable of accurate separation of maternal and fetal ECG from a two channel signal acquired over maternal abdomen. The proposed algorithm is the first algorithm, to the best of the authors' knowledge, focusing on the fetal ECG analysis based on two channel maternal abdominal ECG signal, and we apply it to two publicly available databases, the PhysioNet non-invasive fECG database (adfecgdb) and the 2013 PhysioNet/Computing in Cardiology Challenge (CinC2013), to validate the algorithm...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28540209/myocardial-blood-flow-quantification-for-evaluation-of-coronary-artery-disease-by-computed-tomography
#9
REVIEW
Filippo Cademartiri, Sara Seitun, Alberto Clemente, Ludovico La Grutta, Patrizia Toia, Giuseppe Runza, Massimo Midiri, Erica Maffei
During the last decade coronary computed tomography angiography (CTA) has become the preeminent non-invasive imaging modality to detect coronary artery disease (CAD) with high accuracy. However, CTA has a limited value in assessing the hemodynamic significance of a given stenosis due to a modest specificity and positive predictive value. In recent years, different CT techniques for detecting myocardial ischemia have emerged, such as CT-derived fractional flow reserve (FFR-CT), transluminal attenuation gradient (TAG), and myocardial CT perfusion (CTP) imaging...
April 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28489217/intra-aortic-balloon-pump-in-cardiogenic-shock-state-of-the-art
#10
Petronio Generoso Thomaz, Leonel Adelino Moura, Giovana Muramoto, Renato Samy Assad
The clinical definition of cardiogenic shock is that of a low cardiac output and evidence of tissue hypoxia in the presence of adequate blood volume. Cardiogenic shock is the main cause of death related to acute myocardial infarction (AMI), with a mortality rate of 45-70% in the absence of aggressive and highly specialized technical care. The intra-aortic balloon pump (IABP) is one of the most widely used mechanical assisting devices. During the last two decades, about 42% of patients with AMI who evolved with cardiogenic shock received mechanical circulatory assistance with IABP...
January 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28344611/percutaneous-pulmonary-valve-implantation-state-of-the-art-and-polish-experience
#11
REVIEW
Elżbieta K Biernacka, Witold Rużyłło, Marcin Demkow
Percutaneous pulmonary valve implantation (PPVI) is a relatively new method of treating patients with right ventricular outflow tract (RVOT) dysfunction after surgical repair of congenital heart disease. Since its introduction in 2000 by Bonhoeffer, more than ten thousand PPVI procedures have been performed worldwide. Indications for PPVI have been adapted from those accepted for surgical intervention. Two types of valves are being used: Melody Medtronic available in diameters 16 mm and 18 mm and the family of Edwards SAPIEN valves 23, 26 and 29...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28329307/eacvi-appropriateness-criteria-for-the-use-of-transthoracic-echocardiography-in-adults-a-report-of-literature-and-current-practice-review
#12
Richard P Steeds, Madalina Garbi, Nuno Cardim, Jaroslaw D Kasprzak, Elif Sade, Petros Nihoyannopoulos, Bogdan Alexandru Popescu, Alexandros Stefanidis, Bernard Cosyns, Mark Monaghan, Svend Aakhus, Thor Edvardsen, Frank Flachskampf, Leonarda Galiuto, George Athanassopoulos, Patrizio Lancellotti
The European Association for Cardiovascular Imaging (EACVI) has outlined the rationale for setting appropriate use criteria (AUC) in cardiovascular (CV) imaging. Transthoracic echocardiography (TTE) is the most common imaging modality in CV disease and is a central tool in diagnosis, follow-up, management planning and intervention. The purpose of AUC is to inform referrers, both to avoid under-use, which may result in incomplete or incorrect diagnosis and treatment, and also over-use, which may delay correct diagnosis, lead to 'treatment cascade', and wastes resources...
November 1, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28208231/fast-left-ventricle-tracking-using-localized-anatomical-affine-optical-flow
#13
Sandro Queirós, João L Vilaça, Pedro Morais, Jaime C Fonseca, Jan D'hooge, Daniel Barbosa
In daily clinical cardiology practice, left ventricle (LV) global and regional function assessment is crucial for disease diagnosis, therapy selection, and patient follow-up. Currently, this is still a time-consuming task, spending valuable human resources. In this work, a novel fast methodology for automatic LV tracking is proposed based on localized anatomically constrained affine optical flow. This novel method can be combined to previously proposed segmentation frameworks or manually delineated surfaces at an initial frame to obtain fully delineated datasets and, thus, assess both global and regional myocardial function...
February 16, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/27926994/microvessels-of-the-heart-formation-regeneration-and-dysfunction
#14
EDITORIAL
Ioakim Spyridopoulos, Helen M Arthur
This issue of microcirculation focusses on the special topic of "microvessels of the heart" and contains five state-of-the-art reviews and one expert article that reflect current efforts to address the major gaps in our understanding of these key microvessels. In the adult heart, most attention until recently (especially among the clinical cardiology community) has been given to the main coronary arteries, which are the culprit vessels in patients with coronary artery disease, including its most serious manifestation, acute MI...
January 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/27920047/state-of-the-art-in-nuclear-cardiology
#15
Nikant Kumar Sabharwal
No abstract text is available yet for this article.
December 5, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27834038/artifacts-in-quantitative-analysis-of-myocardial-perfusion-spect-using-cedars-sinai-qps-software
#16
Hadi Malek, Nahid Yaghoobi, Raheleh Hedayati
Quantitative analysis of myocardial perfusion Single photon emission computerized tomography (SPECT) images is increasingly applied in modern nuclear cardiology practice, assisting in the interpretation of myocardial perfusion images (MPI). There are different extensively validated state-of-the-art software packages, including QPS (cedars-Sinai), Corridor 4DM (University of Michigan) and Emory cardiac toolbox (Emory university), providing highly accurate and reproducible data. However, these software packages may suffer from potential artifacts related to patient or technical factors...
April 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27585512/pci-strategies-in-patients-with-st-segment-elevation-myocardial-infarction-and-multivessel-coronary%C3%A2-artery%C3%A2-disease
#17
REVIEW
Eric R Bates, Jacqueline E Tamis-Holland, John A Bittl, Patrick T O'Gara, Glenn N Levine
Recent randomized controlled trials have suggested that patients with ST-segment elevation myocardial infarction and multivessel coronary artery disease may benefit more from multivessel percutaneous coronary intervention (PCI) compared with culprit vessel-only primary PCI. The American College of Cardiology, American Heart Association, and Society for Cardiovascular Angiography and Interventions recently published an updated recommendation on this topic. The purpose of this State-of-the-Art Review is to accurately document existing published reports, describe their limitations, and establish a base for future studies...
September 6, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27544700/structural-alterations-induced-by-ten-disease-causing-mutations-of-human-dihydrolipoamide-dehydrogenase-analyzed-by-hydrogen-deuterium-exchange-mass-spectrometry-implications-for-the-structural-basis-of-e3-deficiency
#18
Attila Ambrus, Junjie Wang, Reka Mizsei, Zsofia Zambo, Beata Torocsik, Frank Jordan, Vera Adam-Vizi
Pathogenic amino acid substitutions of the common E3 component (hE3) of the human alpha-ketoglutarate dehydrogenase and the pyruvate dehydrogenase complexes lead to severe metabolic diseases (E3 deficiency), which usually manifest themselves in cardiological and/or neurological symptoms and often cause premature death. To date, 14 disease-causing amino acid substitutions of the hE3 component have been reported in the clinical literature. None of the pathogenic protein variants has lent itself to high-resolution structure elucidation by X-ray or NMR...
November 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27404148/cardiac-rehabilitation-then-and-now
#19
P K Wilson, B A Franklin
In brief: Cardiac rehabilitation, born of cardiology in order to care for patients with coronary heart disease, has evolved into an accepted area of clinical practice. As more and more patients survive a coronary event, the need for state-of-the-art methods of rehabilitation will be increasingly needed. The author reviews the history of cardiac rehabilitation, discusses its current status, and predicts What courses of action will be needed as the field continues to evolve.
September 1988: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/27232910/heart-failure-in-patients-with-human-immunodeficiency-virus-infection-epidemiology-and-management-disparities
#20
Sadeer G Al-Kindi, Chantal ElAmm, Mahazarin Ginwalla, Emile Mehanna, Michael Zacharias, Rodolfo Benatti, Guilherme H Oliveira, Chris T Longenecker
BACKGROUND: Persons living with HIV are at a higher risk of cardiovascular disease despite effective antiretroviral therapy and dramatic reductions in AIDS-related conditions. We sought to identify the epidemiology of heart failure (HF) among persons living with HIV in the United States in an era of contemporary antiretroviral therapy. METHODS: Explorys is an electronic healthcare database that aggregates medical records from 23 healthcare systems nationwide. Using systemized nomenclature of medicine-clinical terms (SNOMED-CT), we identified adult patients (age>18), who had active records over the past year (September 2014-September 2015)...
September 1, 2016: International Journal of Cardiology
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