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https://www.readbyqxmd.com/read/28914422/normative-data-for-ivc-diameter-and-its-correlation-with-the-somatic-parameters-in-healthy-indian-children
#1
Kushagra Taneja, Virendra Kumar, Rama Anand, Harish K Pemde
OBJECTIVE: To determine the normative data for inferior vena cava (IVC) diameter in children and its correlation with various somatic parameters like height, weight and body surface area in Indian children. Readily available baseline data of IVC diameter in normal children shall be of great help in rapid assessment of variations in sick children. METHODS: Total 475 healthy children aged one month to 12 y visiting out patient clinics (OPD's) were enrolled in this study...
September 15, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28899642/evaluation-of-myocardial-function-according-to-early-diastolic-intraventricular-pressure-difference-in-fetuses
#2
Yuka Yamamoto, Ken Takahashi, Yo Takemoto, Maki Kobayashi, Keiichi Itatani, Toshiaki Shimizu, Atsuo Itakura, Satoru Takeda
BACKGROUND: Intraventricular pressure difference (IVPD), the diastolic suction during early diastole, is known as a useful marker of myocardial diastolic function in adults with different heart diseases, but there are no studies of fetal IVPD. The aim of this study was to determine whether IVPD exists and changes prenatally and whether IVPD correlates with preexisting parameters to evaluate fetal cardiac diastolic function and ventricular dominance. METHODS: Cross-sectional study data (stroke volume, fetal cardiac output, E/A ratio, and myocardial performance index) from 117 healthy fetuses at 17 to 36 weeks of gestation were retrospectively evaluated...
September 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28884203/left-ventricular-dilation-when-pediatric-meet-adult-guidelines
#3
Jill Harmon, Kacy Sisco, Marc Dutro, Clifford L Cua
Measuring and grading left ventricular (LV) size is essential for diagnostic, treatment, and prognostic purposes. Guidelines for quantifying LV size exist for pediatric and adult patients via M-mode measurements, but no data exist determining how well they agree with one another. The goal of this study was to determine the agreement between pediatric echocardiographic readers (PER), pediatric guidelines, and adult guidelines in assessing LV dilation. A retrospective review of all noncongenital echocardiograms from 9/2002 to 11/2015 that had a left ventricular end-diastolic diameter (LVEDD) >5...
September 7, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28879059/pulmonary-hypertension-and-cardiac-hypertrophy-in-children-recipients-of-orthotopic-living-related-liver-transplantation
#4
Magd A Kotb, Inas Abd El Satar, Ahmed M Badr, Nancy H Anis, Hoda Abd El Rahman Ismail, Alaa F Hamza, Hesham M Abdelkader
Surgical stress, liberation of cytokines associated with re-perfusion injury, and long standing use of immune suppressive medications in children recipients of orthotopic living related liver transplantation (OLRLT) pose cardiovascular risk. Reported cardiovascular adverse effects vary from left ventricular wall thickening, hypertrophic cardiomyopathy to resting ECG abnormalities, asymptomatic ST depression following increased heart rate and ventricular arrhythmias. Twenty-five consecutive children recipients of OLRLT were assessed by conventional 2-D, M-mode echocardiography and Doppler...
November 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28861954/accurate-viscosity-measurements-of-flowing-aqueous-glucose-solutions-with-suspended-scatterers-using-a-dynamic-light-scattering-approach-with-optical-coherence-tomography
#5
Andrew Weatherbee, Ivan Popov, Alex Vitkin
The viscosity of turbid colloidal glucose solutions has been accurately determined from spectral domain optical coherence tomography (OCT) M-mode measurements and our recently developed OCT dynamic light scattering model. Results for various glucose concentrations, flow speeds, and flow angles are reported. The relative "combined standard uncertainty" uc(η) on the viscosity measurements was ±1% for the no-flow case and ±5% for the flow cases, a significant improvement in measurement robustness over previously published reports...
August 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28840383/comprehensive-echocardiographic-assessment-of-biventricular-function-in-the-rabbit-animal-model-in-cardiovascular-research-feasibility-and-normal-values
#6
Sara Roldan Ramos, Guido Pieles, Wei Hui, Ryo Ishii, Cameron Slorach, Mark K Friedberg
Quantification of cardiac structure and function is central in cardiovascular research. Rabbits are valuable research models of cardiovascular human disease; however, there is little normal data available. The aim of this study was to investigate feasibility and provide normal values for comprehensive echocardiographic assessment of biventricular function in rabbits. New Zealand white rabbits underwent trans-thoracic echocardiography using a general electric (GE) Vivid 7/E9 system with a 10 MHz transducer, under light sedation, to evaluate biventricular function and dimensions...
August 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28833432/elasticity-of-ascending-aorta-and-left-ventricular-myocardial-functions-in-children-with-bicuspid-aortic-valve
#7
Filiz Ekici, Diyar Uslu, Selen Bozkurt
BACKGROUND: The aim of the study was to determine the aortic elasticity parameters (EPs) and myocardial function in children with bicuspid aortic valve (BAV). Additionally, we evaluated the effect of aortic leaflet phenotype (ALP) and aortic dilatation on elasticity parameters. METHODS: Sixty-two children diagnosed with isolated BAV (mean age 9.3 years old; patient group) and 63 healthy children (control group) have been evaluated for this study. Patient group was divided into three age subgroups: between 0-6, 7-11 and 12-17 age intervals...
August 22, 2017: Echocardiography
https://www.readbyqxmd.com/read/28829836/reference-intervals-of-echocardiographic-measurements-in-healthy-adult-dairy-goats
#8
Olga Szaluś-Jordanow, Michał Czopowicz, Lucjan Witkowski, Marcin Mickiewicz, Tadeusz Frymus, Iwona Markowska-Daniel, Emilia Bagnicka, Jarosław Kaba
OBJECTIVES: To determine references intervals for echocardiographic measurements in adult dairy goats. ANIMALS: 125 clinically healthy, adult dairy goats aged 2-9 years, belonging to two breeds-Polish Fawn Improved (PFI, n = 64, weight range from 46 to 73, median of 58.5kg) and Polish White Improved (PWI, n = 61, weight range from 48 to 80 kg, median of 67.9kg), closely related to French Alpine and Saanen, respectively. METHODS: Non-invasive transthoracic echocardiography examination was performed in unsedated goats in a standing position...
2017: PloS One
https://www.readbyqxmd.com/read/28822668/intrinsic-wave-propagation-of-myocardial-stretch-a-new-tool-to-evaluate-myocardial-stiffness-a-pilot-study-in-patients-with-aortic-stenosis-and-mitral-regurgitation
#9
Cristina Pislaru, Mahmoud M Alashry, Jeremy J Thaden, Patricia A Pellikka, Maurice Enriquez-Sarano, Sorin V Pislaru
BACKGROUND: Left ventricular (LV) filling following atrial contraction generates LV myocardial stretch that propagates from base to apex with a speed proportional to myocardial elasticity. The aim of this study was to test the hypothesis that intrinsic velocity propagation of myocardial stretch (iVP) would be altered in patients with valvular disease and chronic LV pressure overload or volume overload, which may adversely affect mechanical properties of the LV tissue. A second aim was to compare iVP with flow propagation velocity in the chamber...
August 16, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28812203/assessment-of-methodologies-to-calculate-intraventricular-pressure-differences-in-computational-models-and-patients
#10
Francisco J Londono-Hoyos, Abigail Swillens, Joris Van Cauwenberge, Brett Meyers, Maheswara Reddy Koppula, Pavlos Vlachos, Julio A Chirinos, Patrick Segers
Intraventricular pressure differences (IVPDs) govern left ventricular (LV) efficient filling and are a significant determinant of LV diastolic function. Our primary aim is to assess the performance of available methods (color M-mode (CMM) and 1D/2D MRI-based methods) to determine IVPDs from intracardiac flow measurements. Performance of three methods to calculate IVPDs was first investigated via an LV computational fluid dynamics (CFD) model. CFD velocity data were derived along a modifiable scan line, mimicking ultrasound/MRI acquisition of 1D (IVPDCMM/IVPD1D MRI) and 2D (IVPD2D MRI) velocity-based IVPD information...
August 16, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28801279/-high-frequency-echocardiography-for-assessment-of-regional-wall-motion-abnormality-and-cardiac-function-in-mice-with-myocardial-infarction
#11
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/28764221/maximal-aortic-valve-cusp-separation-and-severity-of-aortic-stenosis
#12
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/28755274/regression-of-left-ventricular-mass-after-bariatric-surgery
#13
REVIEW
Thierry H Le Jemtel, Rohan Samson, Abhishek Jaiswal, Eliza B Lewine, Suzanne Oparil
Notwithstanding the presence of hypertension, obstructive sleep apnea, or both, obesity is associated with increased left ventricular (LV) mass. The effects of bariatric surgery on LV mass have been sparsely investigated by M-mode and two-dimensional (2D) echocardiography. Overall, Roux-en-Y gastric bypass, adjustable gastric banding, and sleeve gastrectomy reduce LV mass. However, the reduction in LV mass is extremely variable. Besides duration and severity of obesity, presence of hypertension, obstructive sleep apnea or both, and type of surgical procedures, the inaccuracy of M-mode and 2D echocardiography for assessment of LV mass contributes to the variable effects of bariatric surgery on LV mass...
September 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28749256/echocardiographic-findings-of-bidimensional-mode-m-mode-and-doppler-of-clinically-normal-black-rumped-agouti-dasyprocta-prymnolopha-wagler-1831
#14
Anaemilia das Neves Diniz, Gerson Tavares Pessoa, Laecio da Silva Moura, André Braga de Sousa, Francisco das Chagas Araújo Sousa, Renan Paraguassu de Sá Rodrigues, Maria Angélica Parente da Silva Barbosa, Hatawa Melo de Almeida, Larisse Danielle Silva Freire, Marina Pinto Sanches, Antônio Augusto Nascimento Machado Júnior, Porfírio Candanedo Guerra, Willams Costa Neves, João Macedo de Sousa, Luiz Bolfer, Robson Fortes Giglio, Flávio Ribeiro Alves
The black-rumped agouti ( Dasyprocta prymnolopha , Wagler 1831) is currently under intense ecologic pressure, which has resulted in its disappearance from some regions of Brazil. Echocardiography is widely used in veterinary medicine but it is not yet part of the clinical routine for wild animals. The objective of the present study was to assess the applicability of the echocardiographic exam in nonanesthetized agouti and to establish normal reference values for echocardiographic measurements in bidimensional mode (2D), M-mode, and Doppler for this species, and a lead II electrocardiogram was simultaneously recorded...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28748877/vitamin-d-levels-and-other-biochemical-parameters-of-mineral-bone-disorders-and-their-association-with-diastolic-dysfunction-and-left-ventricular-mass-in-young-nondiabetic-adult-patients-with-chronic-kidney-disease
#15
Satyendra Kumar Sonkar, Mohit Bhutani, Gyanendra Kumar Sonkar, Sant Kumar Pandey, Sharad Chandra, Vivek Bhosale
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in patients with end-stage renal disease. Chronic kidney disease (CKD)-associated cardiovascular mortality is more prevalent in those with diastolic heart failure and is an early predictor, while increased left ventricular mass (LVM) is a strong independent risk factor. Hypovitaminosis D is extensively being studied as a nontraditional risk factor for CVD. The aim of the present study is to look at the association of Vitamin D and other parameters of mineral bone disorder (MBD) with diastolic dysfunction and LVM in nondiabetic young adult patients with CKD...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28737016/grade-i-diastolic-dysfunction-and-elevated-left-ventricular-end-diastolic-pressure-mitral-doppler-inflow-pulmonary-vein%C3%A2-atrial-reversal-and-the-m-mode-mitral-b-bump
#16
Edmund K Kerut, Elizabeth McIlwain, Rick A Nishimura
Grade I diastolic dysfunction (DD) is generally associated with a normal mean left atrial pressure (LAP) and normal left ventricular end-diastolic pressure (LVEDP). The first hemodynamic alteration seen in DD, however, is the development of an elevated LVEDP with a persistent normal LAP. This is manifested by echocardiography as a continued mitral pulsed wave (PW) E/A <0.8 (Grade I DD), but with evidence of an elevated LVEDP. Such findings include alterations in PV flow, mitral PW inflow response to Valsalva maneuver, and also the presence of a B-bump on the mitral M-mode tracing...
July 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28728613/echocardiographic-parameters-of-clinically-normal-geriatric-rhesus-macaques-macacamulatta
#17
Yu Ueda, Catherine T Gunther-Harrington, Christina L Cruzen, Jeffrey A Roberts, Joshua A Stern
The goal of this study was to generate reference intervals for echocardiographic variables in a population of clinically normal geriatric rhesus macaques (Macaca mulatta). To do this, we studied 51 animals (age, 18-29 y; weight, 5.24-17.04 kg). The normal values for cardiac indices, including geometry and systolic and diastolic function, were determined by 2D, M-mode, spectral Doppler, and tissue Doppler echocardiography under ketamine hydrochloride sedation. Statistical correlations between the echocardiographic parameters and age, body weight, sex, and heart rate were investigated...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28724484/echocardiographic-parameters-of-clinically-normal-geriatric-rhesus-macaques-macacamulatta
#18
Yu Ueda, Catherine T Gunther-Harrington, Christina L Cruzen, Jeffrey A Roberts, Joshua A Stern
The goal of this study was to generate reference intervals for echocardiographic variables in a population of clinically normal geriatric rhesus macaques (Macaca mulatta). To do this, we studied 51 animals (age, 18-29 y; weight, 5.24-17.04 kg). The normal values for cardiac indices, including geometry and systolic and diastolic function, were determined by 2D, M-mode, spectral Doppler, and tissue Doppler echocardiography under ketamine hydrochloride sedation. Statistical correlations between the echocardiographic parameters and age, body weight, sex, and heart rate were investigated...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28713836/increased-serum-uric-acid-level-is-a-risk-factor-for-left-ventricular-hypertrophy-but-not-independent-of-egfr-in-patients-with-type-2-diabetic-kidney-disease
#19
Chuchu Zeng, Dongsheng Cheng, Xiaohua Sheng, Guihua Jian, Ying Fan, Yuqiang Chen, Junhui Li, Hongda Bao, Niansong Wang
BACKGROUND: Although the relation between serum uric acid (SUA) and left ventricular hypertrophy (LVH) has been studied for decades, however, their association remains debatable. METHODS: This is a retrospective study in which a total of 435 hospitalized Chinese patients with type 2 DKD were enrolled. The subjects were stratified into quartiles according to SUA level. LVH was assessed by two-dimensional guided M-mode echocardiography. RESULTS: There was a significant increase in the prevalence of LVH in patients with type 2 DKD across SUA quartiles (28...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28711335/echocardiographic-reference-ranges-in-older-children-and-adolescents-in-sub-saharan-africa
#20
Edith D Majonga, Andrea M Rehman, Grace McHugh, Hilda A Mujuru, Kusum Nathoo, Mohammad S Patel, Shungu Munyati, Jon O Odland, Katharina Kranzer, Juan P Kaski, Rashida A Ferrand
BACKGROUND: Echocardiographic reference ranges are important to identify abnormalities of cardiac dimensions. Reference ranges for children in sub-Saharan Africa have not been established. The aim of this study was to establish echocardiographic z-score references for Black children in sub-Saharan Africa. METHODS: 282 healthy subjects aged 6-16years (143 [51%] males) with no known history of cardiac disease were enrolled in the study in Harare, Zimbabwe between 2014 and 2016...
June 30, 2017: International Journal of Cardiology
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