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Doppler echocardiography

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https://www.readbyqxmd.com/read/28810550/2d-sti-combined-with-gated-99-tc-m-mibi-mpi-for-the-diagnosis-of-myocardial-ischemia-in-hypercholesterolemia-patients
#1
Yi Song, Rui-Fang Zhang, Yu Liu
This study aimed to investigate the reliability of ultrasound two-dimensional speckle tracking imaging (2D-STI) for the evaluation of myocardial ischemia in familial hypercholesterolemia (FH) patients. We recruited 28 patients clinically diagnosed with homozygous familial hypercholesterolemia (HoFH) and subjected them to 2D-STI, gated transthoracic Doppler echocardiography (TTDE), and (99)Tc(m)-methoxyisobutylisonitrile myocardial perfusion imaging ((99)Tc(m)-MIBI MPI). The sensitivity, specificity and diagnostic accordance rate of TTDE and 2D-STI for myocardial ischemia in HoFH patients were compared with the (99)Tc(m)-MIBI scores...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809063/color-and-power-doppler-combined-with-fetal-intelligent-navigation-echocardiography-fine-to-evaluate-the-fetal-heart
#2
L Yeo, R Romero
OBJECTIVE: To evaluate the performance of color and bidirectional power Doppler ultrasound combined with Fetal Intelligent Navigation Echocardiography (FINE) in examining the fetal heart. METHODS: A prospective cohort study was conducted of fetuses in the second and third trimesters with a normal heart or with congenital heart disease (CHD). One or more spatiotemporal image correlation (STIC) volume datasets, combined with color or bidirectional power Doppler (S-flow) imaging, were acquired in the apical four-chamber view...
August 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28807722/coronary-microvascular-dysfunction-is-not-associated-with-a-history-of-reproductive-risk-factors-in-women-with-angina-pectoris-an-ipower-substudy
#3
Hannah Elena Suhrs, Anna Meta Kristensen, Anna Bay Rask, Marie Mide Michelsen, Daria Frestad, Naja Dam Mygind, Kira Bové, Eva Prescott
BACKGROUND: Reproductive risk factors such as preeclampsia and recurrent miscarriages have been associated with adverse cardiovascular (CV) events. Underlying coronary microvascular dysfunction (CMD) may be a common denominator. PURPOSE: We investigated whether a history of reproductive risk factors was associated with CMD in women with angina pectoris and no obstructive coronary artery disease (CAD). METHODS: Participants from the iPOWER study, including women with angina pectoris and no obstructive CAD (<50% stenosis), were invited to complete an electronic survey regarding reproductive risk factors: recurrent miscarriages, gestational diabetes, preeclampsia, rhesus immunity, polycystic ovary syndrome and menopausal status as well as migraine and Raynaud phenomenon...
August 11, 2017: Maturitas
https://www.readbyqxmd.com/read/28802566/alcohol-use-and-cardiovascular-disease-risk-in-patients-with-nonalcoholic-fatty-liver-disease
#4
Lisa B VanWagner, Hongyan Ning, Norrina B Allen, Veeral Ajmera, Cora E Lewis, John Jeffrey Carr, Donald M Lloyd-Jones, Norah A Terrault, Juned Siddique
BACKGROUND & AIMS: Cardiovascular disease (CVD) is the leading cause of death among patients with non-alcoholic fatty liver disease (NAFLD). Moderate drinking (vs abstinence) is associated with lower risk of CVD in the general population. We assessed whether alcohol use is associated with CVD risk in patients with NAFLD. METHODS: We analyzed data from participants in the Coronary Artery Risk Development in Young Adults longitudinal cohort study of 5115 black and white young adults, 18-30 years old, recruited from 4 cities in the United States from 1985 through 1986...
August 9, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28801279/-high-frequency-echocardiography-for-assessment-of-regional-wall-motion-abnormality-and-cardiac-function-in-mice-with-myocardial-infarction
#5
Jing Wang, Wei-Jiang Tan, Xiang Li, Gui-Ping Zhang, Jia-Yuan Huang, Xiao-Hong Chen, Qian Lei, Feng-Hua Yang, Ren Huang
OBJECTIVE: To evaluate the value of high-frequency echocardiography in assessing cardiac structure and function in a mouse model of myocardial infarction. METHODS: Twenty-five C57BL/6 mice were randomly divided into sham-operated group (n=10) and myocardial infarction model group (n=15) established by ligation of the left anterior descending artery. The cardiac structure, regional wall motion and cardiac function of mice were examined with pulsed wave Doppler (PWD), tissue Doppler imaging (TDI), EKV and M-mode echocardiography 3 days before and at 1 week after the operation...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28801075/doppler-assessment-of-diastolic-function-reflect-the-severity-of-injury-in-rats-with-chronic-heart-failure
#6
Pablo Sanchez, Jordan J Lancaster, Kyle Weigand, Saffie-Alrahman Ezz-Eldin Mohran, Steven Goldman, Elizabeth Juneman
OBJECTIVE: For chronic heart failure (CHF), more emphasis has been placed on evaluation of systolic as opposed to diastolic function. Within the study of diastology, measurements of left ventricular (LV) longitudinal myocardial relaxation have the most validation. Anterior wall radial myocardial tissue relaxation velocities along with mitral valve inflow (MVI) patterns are applicable diastolic parameters in the differentiation between moderate and severe disease in the ischemic rat model of CHF...
August 8, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28798201/remote-ischemic-preconditioning-does-not-prevent-acute-mountain-sickness-after-rapid-ascent-to-3450-m
#7
Marc M Berger, Franziska Macholz, Lukas Lehmann, Daniel Dankl, Marcel Hochreiter, Bernhard Bacher, Peter Bärtsch, Heimo Mairbäurl
Remote ischemic preconditioning (RIPC) has been shown to protect remote organs, such as the brain and the lung, from damage induced by subsequent hypoxia or ischemia. Acute mountain sickness (AMS) is a syndrome of non-specific neurologic symptoms and in high altitude pulmonary edema excessive hypoxic pulmonary vasoconstriction (HPV) plays a pivotal role. We hypothesized that RIPC protects the brain from AMS and attenuates the magnitude of HPV after rapid ascent to 3450 m. Forty non-acclimatized volunteers were randomized into 2 groups...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28796425/comparison-of-stroke-volume-measurements-during-hemodialysis-using-bioimpedance-cardiography-and-echocardiography
#8
Michael J Germain, Jyovani Joubert, Daniel O'Grady, Brian H Nathanson, Yossi Chait, Nathan W Levin
BACKGROUND: Fluid management remains a major challenge of hemodialysis (HD) care, with serious implications for morbidity and mortality. Intradialytic fluid management is typically guided by blood pressure, an indirect resultant of hemodynamics status. Direct measurements of hemodynamic parameters may improve cardiovascular outcomes by providing rational bases for intervention. We compare stroke volume (SV) measurements using a noninvasive, regional biompedance cardiography device (NiCaS) with Doppler echocardiography (Echo) in HD setting...
August 10, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28790122/association-between-echocardiography-laboratory-accreditation-and-the-quality-of-imaging-and-reporting-for-valvular-heart-disease
#9
Jeremy J Thaden, Michael Y Tsang, Chadi Ayoub, Ratnasari Padang, Vuyisile T Nkomo, Stephen F Tucker, Cynthia S Cassidy, Merri Bremer, Garvan C Kane, Patricia A Pellikka
BACKGROUND: It is presumed that echocardiographic laboratory accreditation leads to improved quality, but there are few data. We sought to compare the quality of echocardiographic examinations performed at accredited versus nonaccredited laboratories for the evaluation of valvular heart disease. METHODS AND RESULTS: We enrolled 335 consecutive valvular heart disease subjects who underwent echocardiography at our institution and an external accredited or nonaccredited institution within 6 months...
August 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28781117/increased-coronary-tortuosity-is-associated-with-increased-left-ventricular-longitudinal-myocardial-shortening
#10
Andrew C Oehler, Jessica Minnier, Jonathan R Lindner
BACKGROUND: The mechanistic basis for tortuosity of the coronary arteries (TCA) is unclear. The aim of this study was to test the hypothesis that the relative degree of systolic longitudinal shortening of the left ventricle that deforms coaxially oriented coronary arteries is associated with TCA. METHODS: Adult subjects undergoing coronary angiography and comprehensive echocardiography within 3 months were classified dichotomously as with (n = 32) or without (n = 42) TCA defined on the basis of number and severity of coronary angles...
August 3, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28780920/left-ventricular-diastolic-dysfunction-without-left-ventricular-hypertrophy-in-obese-children-and-adolescents-a-tissue-doppler-imaging-and-cardiac-troponin-i-study
#11
Sonia A El Saiedi, Marwa F Mira, Sahar A Sharaf, Maysoun M Al Musaddar, Rania M H El Kaffas, Antoine F AbdelMassih, Ihab H Y Barsoum
BACKGROUND: Obesity increases the risk for various cardiovascular problems. Increase in body mass index is often an independent risk factor for the development of elevated blood pressure and clustering of various cardiovascular risk factors. OBJECTIVE: To determine early markers of left ventricular affection in obese patients before the appearance of left ventricular hypertrophy. METHODS: In this cross-sectional study, we evaluated 42 obese patients and 30 healthy controls...
August 7, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28777904/cardiovascular-and-respiratory-effects-of-the-neoprene-wetsuit-in-non-immersed-divers
#12
Claudio Marabotti, Renato Prediletto, Alessandro Scalzini, Alessandro Pingitore, Mirko Passera, Marco Laurino, Antonio L'Abatte
A neoprene wetsuit is widely used to reduce thermal dispersion during diving. Recent observations have pointed out that elastic recoil of the wetsuit might have significant compressive effects, able to affect water and electrolyte homeostasis during both dry and immersed conditions. The aim of this study was to evaluate the possible cardiovascular and respiratory effects of the neoprene wetsuit in dry conditions in a sample of experienced divers. Twenty-four (24) healthy divers were evaluated by Doppler-echocardiography and by spirometry in basal conditions and while wearing a full neoprene wetsuit...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28772030/the-renal-cardiac-connection-in-subjects-with-preserved-ejection-fraction-a-population-based-study
#13
Amit Jain, Christopher Scott, Horng H Chen
AIMS: Chronic kidney disease (CKD) is prevalent and is associated with increased cardiovascular morbidity and mortality. The interaction between diastolic dysfunction (DD) and CKD in subjects with preserved systolic function is not well defined. This study sought to determine the association between renal function and DD in subjects with preserved ejection fraction. METHODS AND RESULTS: Through the Rochester Epidemiology Project, subjects who underwent echocardiography over 2 years with EF ≥50% were identified and the clinical data were obtained...
August 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28770692/effect-of-high-dose-oral-cholecalciferol-on-cardiac-mechanics-in-children-with-chronic-kidney-disease
#14
Murat Deveci, Mehmet Baha Aytaç, Gürkan Altun, Özlem Kayabey, Kadir Babaoğlu
Cardiovascular factors are an important cause of mortality in chronic kidney disease, and vitamin-D deficiency is common in this patient population. Therefore, we aimed to investigate the effect of oral cholecalciferol on cardiac mechanics in children with chronic kidney disease. A total of 41 children with chronic kidney disease - the patient group - and 24 healthy subjects - the control group - free of any underlying cardiac or renal disease with low 25-hydroxyvitamin-D3 levels were evaluated by conventional tissue Doppler imaging and two-dimensional speckle-tracking echocardiography, both at baseline and following Stoss vitamin-D supplementation...
August 3, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28768478/left-ventricular-systolic-function-changes-in-hypertrophic-cardiomyopathy-patients-detected-by-the-strain-of-different-myocardium-layers-and-longitudinal-rotation
#15
Jun Huang, Zi-Ning Yan, Li Fan, Yi-Fei Rui, Xiang-Ting Song
BACKGROUND: Impairment of left ventricular (LV) longitudinal function has an important role in hypertrophic cardiomyopathy (HCM). This research investigated an association between the longitudinal strain of different myocardial layers, longitudinal rotation and the LV systolic function of HCM patients. METHODS: The research was performed on 36 HCM patients and 36 healthy subjects. The peak systolic longitudinal strain of the subendocardial, midmyocardial, and subepicardial layers was measured using 2-dimensional speckle tracking echocardiography (2D-STE)...
August 2, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28766836/doppler-echocardiography-underestimates-the-prevalence-and-magnitude-of-mid-cavity-obstruction-in-patients-with-symptomatic-hypertrophic-cardiomyopathy
#16
James W Malcolmson, Stephen M Hamshere, Abhishek Joshi, Constantinos O'Mahony, Mehul Dhinoja, Steffen E Petersen, Neha Sekhri, Saidi A Mohiddin
OBJECTIVES: To evaluate utility of Doppler echocardiography in the assessment of left ventricular (LV) mid-cavity obstructive (LVMCO) hypertrophic cardiomyopathy (HCM). BACKGROUND: LVMCO is a relatively under-diagnosed complication of HCM and may occur alone or in combination with LV outflow tract obstruction (LVOTO). Identifying and quantifying LVMCO and differentiating it from LVOTO has important implications for patient management. We aimed to assess diagnostic performance of Doppler echocardiography in the assessment of suspected LV obstruction...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28766046/relationship-between-left-ventricular-diastolic-dysfunction-and-very-late-recurrences-after-multiple-procedures-for-atrial-fibrillation-ablation
#17
Naoaki Onishi, Kazuaki Kaitani, Masashi Amano, Sari Imamura, Jiro Sakamoto, Yodo Tamaki, Soichiro Enomoto, Makoto Miyake, Toshihiro Tamura, Hirokazu Kondo, Chisato Izumi, Yoshihisa Nakagawa
Although very late recurrences (VLRs) (first recurrence >12 months after the last catheter ablation) of atrial fibrillation (AF) after multiple catheter ablation procedures are rare, it remains a critical issue. The risk factors for VLRs remain largely unclear. From December 2011 to April 2014, 253 patients underwent an initial catheter ablation. Of the 253 patients, 21 had AF recurrences within 1 year after the last catheter ablation. The study was conducted in the remaining 232 patients. Left ventricular diastolic dysfunction (LVDD) was assessed by echocardiography using composite categories with tissue Doppler imaging and left atrial volume measurements, i...
August 1, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28764222/evaluation-of-myocardial-injury-using-standard-diagnostic-tools-and-tissue-doppler-imaging-in-blunt-trauma-chest
#18
Parshotam Lal Gautam, Neeru Luthra, Manpreet Kaur, Jaspal Singh, Gurpreet Singh Wander, Rohit Tandon, Namrata, Nikhil Gautam
INTRODUCTION: Myocardial contusion is an entity in chest trauma which is difficult to diagnose. Current practice relies more on cardiac-specific biochemical markers and standard echocardiography, but no gold standard test exists. The application of Tissue Doppler imaging is yet unexplored. AIM: The present study was designed to evaluate cardiac injury in patients with blunt trauma chest using conventional trans-thoracic echocardiography parameters and Tissue Doppler imaging...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28764221/maximal-aortic-valve-cusp-separation-and-severity-of-aortic-stenosis
#19
K Jayaprakash, V P Dilu, Raju George
INTRODUCTION: An integrated approach that incorporates two dimensional, M mode and Doppler echocardiographic evaluation has become the standard means for accurate quantification of severity of valvular aortic stenosis. Maximal separation of the aortic valve cusps during systole has been shown to correlate well with the severity of aortic stenosis measured by other echocardiographic parameters. AIM: To study the correlation between Maximal Aortic valve Cusp Separation (MACS) and severity of aortic valve stenosis and to find cut-off values of MACS for detecting severe and mild aortic stenosis...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28764216/association-between-left-ventricle-diastolic-dysfunction-and-unfavorable-prognostic-markers-in-patients-with-aortic-insufficiency
#20
Meliza Goi Roscani, Juliana da Cunha Duarte, Gustavo Nicolodi Augusto, Thaysa Rodrigues de Moraes Salgueiro, Mariana N Meireles, Juliana I F Gobbi, Katashi Okoshi, João Carlos Hueb
INTRODUCTION: The presence of symptoms, systolic dysfunction and Left Ventricle (LV) dilation are considered unfavourable prognostic markers in Aortic Valve Insufficiency (AVI). The role of diastolic dysfunction, which is considered unfavourable outcome marker in cardiac pathologies, is not well established in AVI. AIM: To evaluate if the presence of diastolic dysfunction may be associated with unfavourable prognostic markers in AVI patients. MATERIALS AND METHODS: A cross-sectional prospective study was performed on 22 patients with moderate or severe AVI...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
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