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https://www.readbyqxmd.com/read/28641300/prenatal-diagnosis-of-dextrocardia-with-complex-congenital-heart-disease-using-fetal-intelligent-navigation-echocardiography-fine-and-a-literature-review
#1
Lami Yeo, Suchaya Luewan, Dor Markush, Navleen Gill, Roberto Romero
Fetal dextrocardia is a type of cardiac malposition where the major axis from base to apex points to the right side. This condition is usually associated with a wide spectrum of complex cardiac defects. As a result, dextrocardia is conceptually difficult to understand and diagnose on prenatal ultrasound. The advantage of four-dimensional sonography with spatiotemporal image correlation (STIC) is that this modality can facilitate fetal cardiac examination. A novel method known as fetal intelligent navigation echocardiography (FINE) allows automatic generation of nine standard fetal echocardiography views in normal hearts by applying intelligent navigation technology to STIC volume datasets...
June 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28641242/arrhythmia-mechanism-and-scaling-effect-on-the-spectral-properties-of-electroanatomical-maps-with-manifold-harmonics
#2
Margarita Sanroman-Junquera, Inmaculada Mora-Jimenez, Arcadi Garcia-Alberola, Antonio J Caamano, Beatriz Trenor, Jose Luis Rojo-Alvarez
Spatial and temporal processing of intracardiac electrograms provides relevant information to support the arrhythmia ablation during electrophysiological studies. Current Cardiac Navigation Systems (CNS) and Electrocardiographic Imaging (ECGI) build detailed three-dimensional electroanatomical maps (EAM), which represent the spatial anatomical distribution of bioelectrical features, such as activation time or voltage. We present a principled methodology for spectral analysis of both EAM geometry and bioelectrical feature in CNS or ECGI, including their spectral representation, cut-off frequency, or spatial sampling rate (SSR)...
June 15, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28640452/role-of-epicardial-adipose-tissue-in-health-and-disease-a-matter-of-fat
#3
Bénédicte Gaborit, Coralie Sengenes, Patricia Ancel, Alexis Jacquier, Anne Dutour
Epicardial adipose tissue (EAT) is a small but very biologically active ectopic fat depot that surrounds the heart. Given its rapid metabolism, thermogenic capacity, unique transcriptome, secretory profile, and simply measurability, epicardial fat has drawn increasing attention among researchers attempting to elucidate its putative role in health and cardiovascular diseases. The cellular crosstalk between epicardial adipocytes and cells of the vascular wall or myocytes is high and suggests a local role for this tissue...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28639172/influence-of-cannulation-site-on-carotid-perfusion-during-extracorporeal-membrane-oxygenation-in-a-compliant-human-aortic-model
#4
Andreas Geier, Andreas Kunert, Günter Albrecht, Andreas Liebold, Markus Hoenicka
Blood oxygenized by veno-arterial extracorporeal membrane oxygenation (ECMO) can be returned to the aorta (central cannulation) or to peripheral arteries (axillar, femoral). Hemodynamic effects of these cannulation types were analyzed in a mock loop with an aortic model representative of normal anatomy and compliance under physiological pressures and flow rates. Pressures, flow rates, and contribution of ECMO flow to total flow as a measure of oxygen supply were monitored in the carotids. Steady or pulsatile ECMO flow, residual or no cardiac output, and intraaortic balloon pump counterpulsation were tested as independent factors...
June 21, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28632654/an-overview-of-cardiac-computed-tomography-in-adults-with-congenital-heart-disease
#5
Pal Suranyi, Akos Varga-Szemes, Anthony M Hlavacek
Familiarity with congenital heart disease (CHD) and its manifestations in adults is becoming increasingly important for the practicing cardiothoracic imager. The use of computed tomographic angiography is becoming commonplace not only in adults with a history and subsequent interventions for CHD as a child but also in de novo detection of-typically-milder, survivable forms of CHD, which are clinically suspected because of declining cardiac performance, cardiac events, or murmurs. Occasionally, adult CHD (ACHD) is found incidentally on scans performed for other indications (eg, trauma or neoplasm staging) because of improvements in computed tomographic technology and advanced visualization...
July 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28632652/utility-of-cardiac-magnetic-resonance-imaging-in-the-management-of-adult-congenital-heart-disease
#6
Giuseppe Muscogiuri, Aurelio Secinaro, Paolo Ciliberti, Megan Fuqua, Arni Nutting
The increasing number of patients with adult congenital heart disease (ACHD) calls for the development of noninvasive imaging techniques that allow a long-term evaluation of native and postsurgical anatomy and function. Echocardiography remains the imaging modality of choice for congenital heart disease, but it is affected by limited acoustic windows and poor tissue characterization. Cardiac computed tomography and cardiac catheter angiography are 2 valid alternatives for the anatomic and functional assessment of ACHD; however, both use ionizing radiation, and cardiac catheter angiography requires an invasive approach...
July 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28617686/imaging-adult-patients-with-coarctation-of-the-aorta
#7
Akanksha N Thakkar, Ponraj Chinnadurai, C Huie Lin
PURPOSE OF REVIEW: To provide an overview of current recommendations and techniques used to image coarctations of the aorta. RECENT FINDINGS: Imaging of coarctation of the aorta in adults is moving away from conventional techniques such as echocardiography and invasive angiography. Echocardiography may assist in making the diagnosis but is limited in its ability to quantify the severity of coarctations. Current guidelines recommend that every patient with a coarctation must undergo a computed tomography (CT) or MRI scan for accurate delineation of morphology...
June 15, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28616343/debranching-aortic-surgery
#8
REVIEW
Manuel Alonso Pérez, José Manuel Llaneza Coto, José Antonio Del Castro Madrazo, Carlota Fernández Prendes, Mario González Gay, Amer Zanabili Al-Sibbai
Conventional open surgery still remains as the gold standard of care for aortic arch and thoracoabdominal pathology. In centers of excellence, open repair of the arch has been performed with 5% immediate mortality and a low rate of complications; however overall mortality rates are around 15%, being up to 40% of all patients rejected for treatment due to their age or comorbidities. For thoracoabdominal aortic pathology, data reported from centers of excellence show immediate mortality rates from 5% to 19%, spinal cord ischemia from 2...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28612632/comparison-of-first-trimester-transvaginal-anatomy-scan-to-the-second-trimester-structural-survey-in-normal-weight-and-obese-populations-a-pilot-study
#9
Anna McCormick, Heather Anaya, Ramkrishna Mehendale, Louis Fogg, Michael Roche, Jacques Abramowicz
PURPOSE: To compare visualization of first trimester fetal anatomic transvaginal ultrasound (TVUS) to the second trimester transabdominal anatomic ultrasound (TAU) in normal weight and obese patients. MATERIALS AND METHODS: In a prospective cross-sectional study design, 25 women underwent a TVUS between 12-14 weeks and a TAU at 18-22 weeks. For each anatomic structure, the percentage of patients achieving optimal visualization was recorded. Risk ratios for visualizing a structure in the second trimester versus the first were calculated...
June 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28606197/dynamic-four-dimensional-ct-angiography-for-the-assessment-of-pulmonary-perfusion-in-an-adult-patient-with-pulmonary-artery-occlusion-and-major-aortopulmonary-collateral-after-multistage-repair-of-fallot-s-pentalogy
#10
Dirk Loßnitzer, Stefan Baumann, Thomas Henzler
Dynamic CT angiography provides haemodynamic assessment combined with detailed information on complex cardiac anatomy in patients with congenital malformations such as multistage correction of Fallot's Pentalogy.
June 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28599825/left-ventricular-rotational-and-twist-mechanics-in%C3%A2-the-human-fetal-heart
#11
Ling Li, Mary Craft, Hao H Hsu, Ming Zhang, Berthold Klas, David A Danford, Shelby Kutty
BACKGROUND: The authors investigated left ventricular (LV) rotational indices, twist, and torsion in a large cohort of fetuses using two-dimensional speckle-tracking echocardiography. METHODS: Pregnant women (N = 102) were prospectively recruited for fetal two-dimensional speckle-tracking echocardiography. Because of variable fetal position, ventricular orientation was established using the location of the liver and LV position in relation to the right ventricle...
June 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28595607/a-composite-visualization-method-for-electrophysiology-morphous-merging-of-human-heart
#12
Fei Yang, Lei Zhang, Weigang Lu, Yue Zhang, Wangmeng Zuo, Kuanquan Wang, Henggui Zhang
BACKGROUND: Electrophysiological behavior is of great importance for analyzing the cardiac functional mechanism under cardiac physiological and pathological condition. Due to the complexity of cardiac structure and biophysiological function, visualization of a cardiac electrophysiological model compositively is still a challenge. The lack of either modality of the whole organ structure or cardiac electrophysiological behaviors makes analysis of the intricate mechanisms of cardiac dynamic function a difficult task...
June 8, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28581348/safety-and-efficacy-of-the-tryton-side-branch-stent%C3%A2-for-the-treatment-of-coronary-bifurcation-lesions-an-update
#13
Maik J Grundeken, Robbert J de Winter, Joanna J Wykrzykowska
Percutaneous coronary interventions (PCIs) involving coronary bifurcation lesions are associated with adverse outcomes compared with non-bifurcation lesions. The Tryton Side Branch Stent has been developed to improve clinical outcomes after bifurcation PCI. Areas covered: We will discuss observational data (clinical registries and intravascular imaging studies) and randomized data from the TRYTON trial (comparing Tryton [used in combination with a main branch drug-eluting stent (DES)] with side branch balloon angioplasty [in combination with a main branch DES; also referred to the provisional strategy])...
June 13, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28578896/severe-aortic-stenosis-in-dextrocardia-with-situs-invertus-and-anomalous-single-coronary-ostium-treated-with-transcatheter-aortic-valve-replacement
#14
Abdulah Alrifai, Mohamad Kabach, Lawrence Lovitz, Mark Rothenberg, Marcos Nores, Zaher Fanari
Dextrocardia with situs inversus presents a unique anatomy with right-sided vascular system that may be associated with a number of additional cardiac and vascular malformations. A rare association is the presence of a single coronary artery ostium. To our knowledge, this is the first reported case of transcatheter aortic valve replacement using Edwards SAPIEN S3 valve in Dextrocardia patient with single coronary artery take off.
May 8, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28574808/fetal-cardiac-us-techniques-and-normal-anatomy-correlated-with-adult-ct-and-mr-imaging
#15
Neel Patel, Evan Narasimhan, Anne Kennedy
Congenital heart disease (CHD) is an important cause of childhood mortality. Despite the widespread use of ultrasonography (US) as a screening tool, the prenatal detection rate is suboptimal. Improvement of the initial screening examination, which is performed in low-risk populations and often interpreted by community radiologists, targets a point in the screening process that is likely to have the largest population effect. If the goal of community-based screenings is to detect cases that may be abnormal and refer those to specialized centers for complete assessment, it is logical to use a checklist to confirm normal anatomy...
June 2, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28568112/factors-associated-with-early-extubation-after-superior-cavopulmonary-connection-analysis-from-single-ventricle-reconstruction-trial
#16
D Zakaria, M Rettiganti, J M Gossett, P Gupta
BACKGROUND: To evaluate the landscape of early extubation, and identify factors associated with early extubation (≤ 24 h) after superior cavopulmonary connection (stage 2 operation) among children with single ventricle anatomy. METHODS: Patients undergoing stage 2 operation after Norwood operation from the Pediatric Heart Network Single Ventricle Reconstruction (SVR) trial public-use dataset were included. Elastic net regularized logistic regression models were fitted to evaluate the factors associated with early extubation after stage 2 operation...
June 1, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28567092/additive-role-of-coronary-magnetic-resonance-angiography-for-the-evaluation-of-coronary-artery-disease
#17
Min Jeong Kim, Yeonyee E Yoon, Jin Joo Park, Yeo Koon Kim, Eun Ju Chun, Sang Il Choi, Goo-Young Cho
Coronary magnetic resonance angiography (CMRA) allows a noninvasive assessment of the coronary anatomy without exposing the patients to radiation. It is also superior to coronary computed tomography angiography (CCTA) for the evaluation of luminal narrowing in heavily calcified coronary segments. We report a case with triple-vessel disease, but it could not be accurately assessed by CCTA because of calcification and lack of a significant perfusion defect or myocardial scarring on cardiac magnetic resonance imaging (MRI)...
May 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28566818/three-dimensional-printed-cardiac-prototypes-aid-surgical-decision-making-and-preoperative-planning-in-selected-cases-of-complex-congenital-heart-diseases-early-experience-and-proof-of-concept-in-a-resource-limited-environment
#18
Mahesh Kappanayil, Nageshwara Rao Koneti, Rajesh R Kannan, Brijesh P Kottayil, Krishna Kumar
INTRODUCTION: Three-dimensional. (3D) printing is an innovative manufacturing process that allows computer-assisted conversion of 3D imaging data into physical "printouts" Healthcare applications are currently in evolution. OBJECTIVE: The objective of this study was to explore the feasibility and impact of using patient-specific 3D-printed cardiac prototypes derived from high-resolution medical imaging data (cardiac magnetic resonance imaging/computed tomography [MRI/CT]) on surgical decision-making and preoperative planning in selected cases of complex congenital heart diseases (CHDs)...
May 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28560706/local-hemodynamic-differences-between-commercially-available-y-grafts-and-traditional-fontan-baffles-under-simulated-exercise-conditions-implications-for-exercise-tolerance
#19
Phillip M Trusty, Zhenglun Wei, Michael Tree, Kirk R Kanter, Mark A Fogel, Ajit P Yoganathan, Timothy C Slesnick
Fontan completion, resulting in a total cavopulmonary connection (TCPC), is accomplished using a lateral tunnel (LT), extracardiac conduit (ECC), or recently a bifurcated Y-graft. The local energetic differences between these graft types have not been substantially analyzed under exercise conditions. The present study evaluates the energetic performance of Y-grafts under simulated exercise conditions, compares their performance to the previous LT/ECC Fontan options, and discusses implications for exercise tolerance and hemodynamic predictability...
May 30, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28557866/imaging-adult-patients-with-discrete-subvalvar-aortic-stenosis
#20
Alexander R Opotowsky, Sarah S Pickard, Tal Geva
PURPOSE OF REVIEW: Distinction between discrete subvalvar aortic stenosis and other causes of left ventricular outflow obstruction has important implications for predicting natural history and guiding the timing and type of intervention. Imaging, primarily transthoracic echocardiography (TTE), plays a pivotal role in the diagnosis and management of adults with subvalvar aortic stenosis. RECENT FINDINGS: Most systematic research on imaging of subvalvar aortic stenosis has focused on echocardiography...
May 26, 2017: Current Opinion in Cardiology
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