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https://www.readbyqxmd.com/read/28639972/imaging-in-repaired-tetralogy-of-fallot-with-a-focus-on-recent-advances-in-echocardiography
#1
Guillermo Larios, Mark K Friedberg
PURPOSE OF REVIEW: Imaging is essential for the management of adults with repaired tetralogy of Fallot (rToF). Echocardiography and cardiac magnetic resonance imaging are the central modalities to assess rToF. Here we review recent literature on imaging rToF, focusing on echocardiography and advances in assessment of cardiac mechanics. RECENT FINDINGS: Several two-dimensional, three-dimensional, and Doppler echo parameters have been proposed to assess pulmonary regurgitation, right ventricular volumes and ejection fraction, but most of them still have important limitations in their feasibility and reliability compared to cardiac magnetic resonance (CMR)...
July 20, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28634555/a-rare-case-of-pneumopericardium-in-the-setting-of-tuberculous-constrictive-pericarditis
#2
Lauro L Abrahan Iv, Stephanie Martha O Obillos, Jaime Alfonso M Aherrera, Jose Donato A Magno, Celia Catherine C Uy-Agbayani, Ulysses King G Gopez, Jobelle Joyce Anne R Baldonado
A 28-year-old Filipino male was admitted due to high-grade fevers and dyspnea on a background of chronic cough and weight loss. Due to clinical and echocardiographic signs of cardiac tamponade, emergency pericardiocentesis was performed on his first hospital day. Five days after, chest radiographs showed new pockets of radiolucency within the cardiac shadow, indicative of pneumopericardium. On repeat echo, air microbubbles admixed with loculated effusion were visualized in the anterior pericardial space. Constrictive physiology was also supported by a thickened pericardium, septal bounce, exaggerated respiratory variation in AV valve inflow, and IVC plethora...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28623910/pilot-study-using-3d-longitudinal-strain-computation-in-a-multi-parametric-approach-for-best-selecting-responders-to-cardiac-resynchronization-therapy
#3
Maxime Fournet, Anne Bernard, Sylvestre Marechaux, Elena Galli, Raphael Martins, Philippe Mabo, J Claude Daubert, Christophe Leclercq, Alfredo Hernandez, Erwan Donal
BACKGROUND: Almost all attempts to improve patient selection for cardiac resynchronization therapy (CRT) using echo-derived indices have failed so far. We sought to assess: the performance of homemade software for the automatic quantification of integral 3D regional longitudinal strain curves exploring left ventricular (LV) mechanics and the potential value of this tool to predict CRT response. METHODS: Forty-eight heart failure patients in sinus rhythm, referred for CRT-implantation (mean age: 65 years; LV-ejection fraction: 26%; QRS-duration: 160 milliseconds) were prospectively explored...
June 17, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28616542/assessment-of-pulmonary-artery-pressure-by-echocardiography-a-comprehensive-review
#4
REVIEW
Sathish Parasuraman, Seamus Walker, Brodie L Loudon, Nicholas D Gollop, Andrew M Wilson, Crystal Lowery, Michael P Frenneaux
Pulmonary hypertension is a pathological haemodynamic condition defined as an increase in mean pulmonary arterial pressure ≥ 25 mmHg at rest, assessed using gold standard investigation by right heart catheterisation. Pulmonary hypertension could be a complication of cardiac or pulmonary disease, or a primary disorder of small pulmonary arteries. Elevated pulmonary pressure (PAP) is associated with increased mortality, irrespective of the aetiology. The gold standard for diagnosis is invasive right heart catheterisation, but this has its own inherent risks...
September 2016: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28603000/validation-of-a-defibrillation-lead-ventricular-volume-measurement-compared-to-3d-echocardiography
#5
David E Haines, Wilson Wong, Robert Canby, Coty Jewell, Mahmoud Houmsse, David Pederson, Lissa Sugeng, John Porterfield, Anil Kottam, John Pearce, Jon Valvano, Joel Michalek, Aron Trevino, Sandeep Sagar, Marc D Feldman
BACKGROUND: There is increasing evidence that using frequent invasive measures of pressure in heart failure patients results in improved outcomes compared to traditional measures. Admittance, a measure of volume derived from pre-existing defibrillation leads is proposed as a new technique to monitor cardiac hemodynamics in patients with implantable defibrillators. OBJECTIVES: The goal of this work was to evaluate the accuracy of a new ventricular volume sensor (VVS, CardioVol), compared with 3D Echocardiography (echo) in patients with implantable defibrillators...
June 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28590452/genistein-supplementation-and-cardiac-function-in-postmenopausal-women-with-metabolic-syndrome-results-from-a-pilot-strain-echo-study
#6
Cesare De Gregorio, Herbert Marini, Angela Alibrandi, Antonino Di Benedetto, Alessandra Bitto, Elena Bianca Adamo, Domenica Altavilla, Concetta Irace, Giacoma Di Vieste, Diego Pancaldo, Roberta Granese, Marco Atteritano, Salvatore Corrao, Giuseppe Licata, Francesco Squadrito, Vincenzo Arcoraci
Genistein, a soy-derived isoflavone, may improve cardiovascular risk profile in postmenopausal women with metabolic syndrome (MetS), but few literature data on its cardiac effects in humans are available. The aim of this sub-study of a randomized double-blind case-control study was to analyze the effect on cardiac function of one-year genistein dietary supplementation in 22 post-menopausal patients with MetS. Participants received 54 mg/day of genistein (n = 11) or placebo (n = 11) in combination with a Mediterranean-style diet and regular exercise...
June 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28571229/role-of-echocardiography-in-prenatal-screening-of-congenital-heart-diseases-and-its-correlation-with-postnatal-outcome
#7
Shivani Sharma, Navkiran Kaur, Khushpreet Kaur, Naveen Chandrashekhar Pawar
INTRODUCTION: Congenital Heart Defects (CHDs) are one of the most common forms of congenital anomalies. Fetal echocardiography performed during second trimester aims at early diagnosis of congenital heart disease which is instrumental in proper planning of delivery, perinatal care and counselling of parents. AIM: To evaluate the role of fetal echocardiography in prenatal screening of CHDs and to study the role of associated extracardiac anomalies. MATERIALS AND METHODS: This was a hospital based prospective and correlative type of study, done over a period of one year...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28553198/a-resilient-non-neuronal-source-of-the-spatiotemporal-lag-structure-detected-by-bold-signal-based-blood-flow-tracking
#8
Toshihiko Aso, Guanhua Jiang, Shin-Ichi Urayama, Hidenao Fukuyama
Recent evidence has suggested that blood oxygenation level-dependent (BOLD) signals convey information about brain circulation via low frequency oscillation of systemic origin (sLFO) that travels through the vascular structure ("lag mapping"). Prompted by its promising application in both physiology and pathology, we examined this signal component using multiple approaches. A total of 30 healthy volunteers were recruited to perform two reproducibility experiments at 3 Tesla using multiband echo planar imaging...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28552462/the-accuracy-of-picco%C3%A2-in-measuring-cardiac-output-in-patients-under-therapeutic-hypothermia-comparison-with-transthoracic-echocardiography
#9
T Souto Moura, S Aguiar Rosa, N Germano, R Cavaco, T Sequeira, M Alves, A L Papoila, L Bento
BACKGROUND: Invasive cardiac monitoring using thermodilution methods such as PiCCO® is widely used in critically ill patients and provides a wide range of hemodynamic variables, including cardiac output (CO). However, in post-cardiac arrest patients subjected to therapeutic hypothermia, the low body temperature possibly could interfere with the technique. Transthoracic Doppler echocardiography (ECHO) has long proved its accuracy in estimating CO, and is not influenced by temperature changes...
May 25, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28540067/utility-of-cardiac-magnetic-resonance-for-evaluation-of-mitral-regurgitation-prior-to-mitral-valve-surgery
#10
REVIEW
Neil K Mehta, Jiwon Kim, Jonathan Y Siden, Sara Rodriguez-Diego, Javid Alakbarli, Antonino Di Franco, Jonathan W Weinsaft
Mitral regurgitation (MR) is a common cause of morbidity worldwide and an accepted indication for interventional therapies which aim to reduce or resolve adverse clinical outcomes associated with MR. Cardiac magnetic resonance (CMR) provides highly accurate means of assessing MR, including a variety of approaches that can measure MR based on quantitative flow. Additionally, CMR is widely accepted as a reference standard for cardiac chamber quantification, enabling reliable detection of subtle changes in cardiac chamber size and function so as to guide decision-making regarding timing of mitral valve directed therapies...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28539300/-clinical-outcomes-of-intravascular-ultrasound-in-guiding-the-treatment-of-non-left-main-intermediate-coronary-lesions-for-patients-with-acute-coronary-syndrome
#11
Hong-Bin Liang, Qian Guo, Xin-Lu Zhang, Xue-Wei Liu, Yong-Zhen Tang, Wei-Yu Chen, Yu-Qing Hou, Jian-Cheng Xiu
OBJECTIVE: To evaluate the long-term clinical outcomes of intravascular ultrasound(IVUS) in guiding the treatment of non-left main intermediate coronary lesions for patients of acute coronary syndrome (ACS). METHODS: A total of 25 patients with intermediate coronary lesions(stenosis of 40%-70%) confirmed by coronary angiography were performed with IVUS. When MLA≥4 mm(2), we deferred the PCI treatment and performed optimal medical treatment (OMT). The patient were followed up for 12 month...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28535761/the-emerging-role-of-cardiovascular-magnetic-resonance-in-the-evaluation-of-hypertensive-heart-disease
#12
REVIEW
Sophie Mavrogeni, Vasiliki Katsi, Vasiliki Vartela, Michel Noutsias, George Markousis-Mavrogenis, Genovefa Kolovou, Athanasios Manolis
BACKGROUND: Arterial hypertension is the commonest cause of cardiovascular death. It may lead to hypertensive heart disease (HHD), including heart failure (HF), ischemic heart disease (IHD) and left ventricular hypertrophy (LVH). MAIN BODY: According to the 2007 ESH/ESC guidelines, the recommended imaging technique is echocardiography (echo), when a more sensitive detection of LVH than that provided by ECG, is needed. Cardiovascular Magnetic Resonance (CMR), a non-invasive, non-radiating technique, offers the following advantages, beyond echo: a) more reliable and reproducible measurements of cardiac parameters such as volumes, ejection fraction and cardiac mass b) more accurate differentiation of LVH etiology by providing information about tissue characterisation c) more accurate evaluation of myocardial ischemia, specifically if small vessels disease is present d) technique of choice for diagnosis of renovascular, aortic tree/branches lesions and quantification of aortic valve regurgitation e) technique of choice for treatment evaluation in clinical trials...
May 23, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28528164/mri-derived-myocardial-strain-measures-in-normal-subjects
#13
Ha Q Vo, Thomas H Marwick, Kazuaki Negishi
OBJECTIVES: The aim of this study was to perform a systematic review and meta-analysis to estimate the normal ranges of magnetic resonance imaging (MRI)-based feature tracking (FT) and to identify sources of variations. Similar analyses were also performed for strain encoding, displacement encoding with stimulated echoes, and myocardial tagging. BACKGROUND: MRI-FT is a novel technique for quantification of myocardial deformation using MRI cine images. However, the reported 95% confidence intervals (CIs) from the 2 largest studies have no overlaps...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28507825/spatiotemporal-strategies-for-joint-segmentation-and-motion-tracking-from-cardiac-image-sequences
#14
Huafeng Liu, Ting Wang, Lei Xu, Pengcheng Shi
Although accurate and robust estimations of the deforming cardiac geometry and kinematics from cine tomographic medical image sequences remain a technical challenge, they have significant clinical value. Traditionally, boundary or volumetric segmentation and motion estimation problems are considered as two sequential steps, even though the order of these processes can be different. In this paper, we present an integrated, spatiotemporal strategy for the simultaneous joint recovery of these two ill-posed problems...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28500278/comparison-of-echocardiography-and-64-multislice-spiral-computed-tomography-for-the-diagnosis-of-pediatric-congenital-heart-disease
#15
Aiyin Li, Zhenpeng Peng, Chengqi Zhang
BACKGROUND The goals of this study were: to compare echocardiogram and 64-multislice spiral computed tomography (64-MSCT) in diagnosing pediatric congenital heart disease; to determine the significance of ECHO for diagnosing congenital heart disease; and to identify the appropriate diagnosis for congenital heart disease through combined use of 64-MSCT and ECHO. MATERIAL AND METHODS Thirty patients underwent both ECHO and 64-MSCT diagnoses before their surgeries. Imaging from ECHO and 64-MSCT were analyzed by 4 specialists...
May 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28484313/management-of-cardiac-involvement-in-muscular-dystrophies-paediatric-versus-adult-forms
#16
REVIEW
Alberto Palladino, Paola D'Ambrosio, Andrea Antonio Papa, Roberta Petillo, Chiara Orsini, Marianna Scutifero, Gerardo Nigro, Luisa Politano
Muscular dystrophies are a group of genetic disorders characterized by muscle degeneration and consequent substitution by fat and fibrous tissue. Cardiac involvement is an almost constant feature in a great part of these diseases, as both primary myocardial involvement and secondary involvement due to respiratory insufficiency, pulmonary hypertension or reduced mobility. Primary myocardial involvement usually begins more precociously compared to the secondary involvement. In fact the first signs of cardiomyopathy can be observed in the first decade of life in muscular dystrophies with childhood onset and later in adult form of muscular dystrophies as myotonic dystrophy type 1...
December 2016: Acta Myologica: Myopathies and Cardiomyopathies: Official Journal of the Mediterranean Society of Myology
https://www.readbyqxmd.com/read/28481037/regional-quantification-of-myocardial-mechanics-in-rat-using-3d-cine-dense-cardiovascular-magnetic-resonance
#17
Xiaoyan Zhang, Zhan-Qiu Liu, Dara Singh, Gregory J Wehner, David K Powell, Kenneth S Campbell, Brandon K Fornwalt, Jonathan F Wenk
Rat models have assumed an increasingly important role in cardiac research. However, a detailed profile of regional cardiac mechanics, such as strains and torsion, is lacking for rats. We hypothesized that healthy rat left ventricles (LVs) exhibit regional differences in cardiac mechanics, which are part of normal function. In this study, images of the LV were obtained with 3D cine displacement encoding with stimulated echoes (DENSE) cardiovascular magnetic resonance in 10 healthy rats. To evaluate regional cardiac mechanics, the LV was divided into basal, mid-ventricular, and apical regions...
May 8, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28475712/surgical-management-of-aortopulmonary-window-24-years-of-experience-and-lessons-learned
#18
Deepak Gowda, Trushar Gajjar, Jinaga Nageswar Rao, Praveen Chavali, Aaditya Sirohi, Naveen Pandarinathan, Neelam Desai
OBJECTIVES: Aortopulmonary window represents 0.2-0.3% of all congenital heart lesions. Progressive pulmonary arterial hypertension and its consequences are more common with this anomaly. The purpose of this study was to share 24 years of surgical experience in managing a spectrum of 55 cases of aortopulmonary window, followed up to 17 years in a single institution. METHODS: : This retrospective study was done from November 1991 to November 2015 of 55 patients with aortopulmonary window who underwent successful surgical repair...
May 5, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28471812/comparisons-of-noninvasive-methods-used-to-assess-exercise-stroke-volume-in-hfpef
#19
Erik H Van Iterson, Thomas P Olson, Barry A Borlaug, Bruce D Johnson, Eric M Snyder
INTRODUCTION: Cardiopulmonary exercise testing (CPET) plays an important role in properly phenotyping signs and symptoms of heart failure with preserved ejection fraction (HFpEF). The prognostic value of CPET is strengthened when accompanied by cardiac hemodynamic measurements. Although recognized as the 'Gold' standard, cardiac catheterization is impractical for routine CPET. Thus, advancing the scientific/methodologic understanding of noninvasive techniques for exercise cardiac hemodynamic assessment is clinically impactful in HFpEF...
May 4, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28471563/role-of-negative-trans-thoracic-echocardiography-in-the-diagnosis-of-infective-endocarditis
#20
Marina Leitman, Eli Peleg, Ruthie Shmueli, Zvi Vered
BACKGROUND: The search for the presence of vegetations in patients with suspected infective endocarditis is a major indication for trans-esophageal echocardiographic (TEE) examinations. Advances in harmonic imaging and ongoing improvement in modern echocardiographic systems allow adequate quality of diagnostic images in most patients. OBJECTIVES: To investigate whether TEE examinations are always necessary for the assessment of patients with suspected infective endocarditis...
July 2016: Israel Medical Association Journal: IMAJ
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