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https://www.readbyqxmd.com/read/28211802/evaluation-of-the-severity-of-capsular-contracture-using-elastography-after-breast-implant-reconstruction
#1
Yoshihiro Sowa, Isao Yokota, Sizu Itsukage, Katsuhiko Nakatsukasa, Katsuhiko Sakaguchi, Tetsuya Taguchi, Toshiaki Numajiri
BACKGROUND: Capsular contracture around implants is a common complication after breast reconstruction. Strain elastography (STE) and shear-wave elastography (SWE) are noninvasive imaging techniques that can measure tissue stiffness and thickness of the capsule. OBJECTIVE: The purposes of the study were to compare STE and SWE for measurement of capsular contracture after breast implant reconstruction using intra-class correlation coefficients (ICCs) and to investigate the correlation of these data with the Baker score, which is the most frequently used clinical staging scale for capsule contracture...
February 17, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28198938/left-atrial-deformation-analysis-in-patients-with-corrected-tetralogy-of-fallot-by-3d-speckle-tracking-echocardiography-from-the-magyar-path-study
#2
Kálmán Havasi, Péter Domsik, Anita Kalapos, Jackie S McGhie, Jolien W Roos-Hesselink, Tamás Forster, Attila Nemes
Background: Three-dimensional (3D) echocardiography coupled with speckle-tracking echocardiographic (STE) capability is a novel methodology which has been demontrated to be useful for the assessment of left atrial (LA) volumes and functional properties. There is increased scientific interest on myocardial deformation analysis in adult patients with corrected tetralogy of Fallot (cTOF). Objectives: To compare LA volumes, volume-based functional properties and strain parameters between cTOF patients and age- and gender-matched healthy controls...
February 13, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28192831/training-effects-of-the-fifa-11-and-harmoknee-on-several-neuromuscular-parameters-of-physical-performance-measures
#3
Francisco Ayala, Carlos Pomares-Noguera, Francisco Javier Robles-Palazón, Maria Del Pilar García-Vaquero, Ignacio Ruiz-Pérez, Sergio Hernández-Sánchez, Mark De Ste Croix
The main purpose of this study was to analyse the training effects of the FIFA 11+ and Harmoknee on several parameters of physical performance measures in youth amateur football players. 41 adolescent players were randomised within each team into 2 groups (team 1: control vs. FIFA 11+; team 2: control vs. Harmoknee). The FIFA 11+ and Harmoknee groups performed the program 3 times a week for 4 weeks; the control groups completed their usual warm-up routines. 13 physical performance measures (joint range of motion, dynamic postural control, single legged hop limb symmetry, sprint time, jumping height and agility) were assessed...
February 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28168822/circumferential-strain-by-velocity-vector-imaging-and-speckle-tracking-echocardiography-validation-against-sonomicrometry-in-an-aortic-phantom
#4
Johan Petrini, Maria J Eriksson, Kenneth Caidahl, Matilda Larsson
BACKGROUND: Evaluation of arterial deformation and mechanics using strain analysis on ultrasound greyscale images has gained increasing scientific interest. The aim of this study was to validate in vitro measurements of circumferential strain by velocity vector imaging (VVI) and speckle-tracking echocardiography (STE) against sonomicrometry as a reference method. METHOD: Two polyvinyl alcohol phantoms sized to mimic the descending aorta were constructed and connected to a pulsatile flow pump to obtain high-resistance flow profiles...
February 6, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28168740/decreased-biventricular-longitudinal-strain-shortly-after-congenital-heart-defect-surgery
#5
Jonne M de Boer, Irene M Kuipers, Liselotte M Klitsie, Nico A Blom, Arend D J Ten Harkel
OBJECTIVE: Impaired ventricular performance in patients who underwent surgery for congenital heart defect (CHD) may ultimately result in clinical heart failure. It is therefore important to regularly evaluate the left ventricular (LV) and right ventricular (RV) performance. We evaluated tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) before and after surgical correction of a CHD. STUDY DESIGN: Patients with CHD undergoing biventricular corrective surgery were included in this retrospective study...
February 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28165414/deoxynivalenol-exposure-in-norway-risk-assessments-for-different-human-age-groups
#6
REVIEW
Leif Sundheim, Inger Therese Lillegaard, Christiane Kruse Fæste, Anne-Lise Brantsæter, Guro Brodal, Gunnar Sundstøl Eriksen
Deoxynivalenol (DON) is the most common mycotoxin in Norwegian cereals, and DON is detected in most samples of crude cereal grain and cereal food commodities such as flour, bran, and oat flakes. The Norwegian Scientific Committee for Food Safety assessed the risk for adverse effects of deoxynivalenol (DON) in different age groups of the domestic population. This review presents the main results from the risk assessment, supplemented with some recently published data. Impairment of the immune system together with reduced feed intake and weight gain are the critical effects of DON in experimental animals on which the current tolerable daily intake was established...
February 4, 2017: Toxins
https://www.readbyqxmd.com/read/28155065/left-atrial-strain-assessed-by-three-dimensional-speckle-tracking-echocardiography-predicts-atrial-fibrillation-recurrence-after-catheter-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#7
Atsushi Mochizuki, Satoshi Yuda, Takefumi Fujito, Mina Kawamukai, Atsuko Muranaka, Daigo Nagahara, Shinya Shimoshige, Akiyoshi Hashimoto, Tetsuji Miura
BACKGROUND: Several studies have shown the utility of left atrial (LA) function determined by two-dimensional or three-dimensional speckle tracking echocardiography (2D- or 3D-STE) for identifying patients with paroxysmal atrial fibrillation (AF). However, whether 3D-STE is applicable for prediction of the recurrence of AF after catheter ablation (CA) remains unknown. We examined whether any 3D-STE parameters are better than 2D-STE parameters for the prediction of AF recurrence. METHODS: Forty-two patients with paroxysmal AF (58 ± 10 years old, 69% male) underwent 2D- and 3D-STE within 3 days before first-time CA...
February 2, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28154276/the-imaging-diagnosis-of-less-advanced-cases-of-cardiac-amyloidosis-the-relative-apical-sparing-pattern
#8
Koya Ono, Go Ishimaru, Miho Hayashi, Yuan Bae, Takashi Ito, Toshiyuki Izumo, Ken Murata
An early diagnosis is important for improving the prognosis of cardiac amyloidosis (CA). We herein describe the utility of two-dimensional speckle tracking echocardiography (2-D STE) in diagnosing CA at a less advanced stage. A 63-year-old woman with exertional dyspnea was suspected of having CA based on her echocardiographic and electrocardiographic findings. A myocardial biopsy was negative for amyloid deposits, while the relative apical sparing pattern was detected on 2-D STE, which was highly suggestive of CA...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28150084/value-of-three-dimensional-strain-parameters-for-predicting-left-ventricular-remodeling-after-st-elevation-myocardial-infarction
#9
Lin Xu, Xiaomin Huang, Jun Ma, Jiangming Huang, Yongwang Fan, Huidi Li, Jian Qiu, Heye Zhang, Wenhua Huang
This study was to evaluate the value of multi-directional strain parameters derived from three-dimensional (3D) speckle tracking echocardiography (STE) for predicting left ventricular (LV) remodeling after ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI) compared with that of two-dimensional (2D) global longitudinal strain (GLS). A total of 110 patients (mean age, 54 ± 9 years) after STEMI treated with primary PCI were enrolled in our study. At baseline (within 24 h after PCI), standard 2D echocardiography, 2D STE and 3D STE were performed to acquire the conventional echocardiographic parameters and strain parameters...
February 1, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28149422/comparison-of-oxygen-uptake-during-and-after-the-execution-of-resistance-exercises-and-exercises-performed-on-ergometers-matched-for-intensity
#10
José Vilaça-Alves, Nuno Miguel Freitas, Francisco José Saavedra, Christopher B Scott, Victor Machado Dos Reis, Roberto Simão, Nuno Garrido
The aim of this study was to compare the values of oxygen uptake (VO2) during and after strength training exercises (STe) and ergometer exercises (Ee), matched for intensity and exercise time. Eight men (24 ± 2.33 years) performed upper and lower body cycling Ee at the individual's ventilatory threshold (VE/VCO2). The STe session included half squats and the bench press which were performed with a load at the individual blood lactate concentration of 4 mmol/l. Both sessions lasted 30 minutes, alternating 50 seconds of effort with a 10 second transition time between upper and lower body work...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28140649/effects-of-a-combination-of-acepromazine-maleate-and-butorphanol-tartrate-on-conventional-and-two-dimensional-speckle-tracking-echocardiography-in-healthy-dogs
#11
Giorgia Santarelli, Jesús Talavera López, Josefa Fernández Del Palacio
OBJECTIVE To determine effects of a combination of acepromazine maleate and butorphanol tartrate on conventional echocardiographic variables and on strain values obtained by use of 2-D speckle tracking echocardiography (STE) in healthy dogs. ANIMALS 18 healthy medium- and large-size adult dogs. PROCEDURES Transthoracic echocardiographic examination (2-D, M-mode, color flow, spectral Doppler, and tissue Doppler ultrasonography) and high-definition oscillometric blood pressure measurement were performed before and after dogs were sedated by IM administration of a combination of acepromazine (0...
February 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28139073/assessment-of-left-ventricular-functions-and-myocardial-iron-load-with-tissue-doppler-and-speckle-tracking-echocardiography-and-t2-mri-in-patients-with-%C3%AE-thalassemia-major
#12
Mehmet Emre Ari, Filiz Ekici, İbrahim İlker Çetin, Emine Betül Tavil, Neşe Yaralı, Pamir Işık, Tuncay Hazırolan, Bahattin Tunç
BACKGROUND: The purpose of this study is to determine early myocardial dysfunction in β-thalassemia major (BTM) patients. Where the myocardial dysfunction cannot be detected by conventional echocardiography, it could be detected by tissue Doppler imaging (TDI) or speckle tracking echocardiography (STE). METHODS: In this study, we analyzed 60 individuals, 30 of whom were BTM patients and the other 30 of whom were the control group. T2* magnetic resonance imaging (MRI) was used to measure cardiac iron deposition...
January 31, 2017: Echocardiography
https://www.readbyqxmd.com/read/28132795/developing-a-standardized-measurement-of-alcohol-intoxication
#13
Justin L Benoit, Kimberly W Hart, Adam A Soliman, Christopher M Barczak, Robert S Sibilia, Christopher J Lindsell, Gregory J Fermann
INTRODUCTION: We assessed multiple examinations and assessment tools to develop a standardized measurement of alcohol intoxication to aid medical decision making in the Emergency Department. METHODS: Volunteers underwent an alcohol challenge. Pre- and post-alcohol challenge, subjects were videotaped performing three standardized clinical examinations: (1) Standardized Field Sobriety Test (SFST) examination, (2) Hack's Impairment Index (HII) examination, and (3) Cincinnati Intoxication Examination (CIE)...
January 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28130793/twist-deformation-for-predicting-postoperative-left-ventricular-function-in-patients-with-mitral-regurgitation-a-speckle-tracking-echocardiography-study
#14
Ozkan Candan, Suzan Hatipoglu Akpinar, Cem Dogan, Aykut Demirkıran, Barış Dindar, Zubeyde Bayram, Fatih Yılmaz, Cihangir Kaymaz, Nihal Ozdemir
PURPOSE: Postoperative LV dysfunction is associated with poor prognosis and increased mortality in patient with mitral regurgitation undergoing surgery. With this study, we aimed to investigate the predictive value of classic and speckle tracking echocardiographic (STE) LV deformational parameters for estimating postoperative LV dysfunction. METHODS: Fifty-nine asymptomatic patients with severe mitral regurgitation (MR) due to mitral valve prolapse, who had sinus rhythm and LV ejection fraction (EF) ≥50%, were included...
January 28, 2017: Echocardiography
https://www.readbyqxmd.com/read/28129768/exposure-to-air-pollution-near-a-steel-plant-is-associated-with-reduced-heart-rate-variability-a-randomised-crossover-study
#15
Robin H Shutt, Lisa Marie Kauri, Scott Weichenthal, Premkumari Kumarathasan, Renaud Vincent, Errol M Thomson, Ling Liu, Mamun Mahmud, Sabit Cakmak, Robert Dales
BACKGROUND: Epidemiological studies have shown that as ambient air pollution (AP) increases the risk of cardiovascular mortality also increases. The mechanisms of this effect may be linked to alterations in autonomic nervous system function. We wished to examine the effects of industrial AP on heart rate variability (HRV), a measure of subtle changes in heart rate and rhythm representing autonomic input to the heart. METHODS: Sixty healthy adults were randomized to spend five consecutive 8-h days outdoors in one of two locations: (1) adjacent to a steel plant in the Bayview neighbourhood in Sault Ste Marie Ontario or (2) at a College campus, several kilometers from the plant...
January 28, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28120157/subclinical-markers-of-cardiovascular-disease-predict-adverse-outcomes-in-chronic-kidney-disease-patients-with-normal-left-ventricular-ejection-fraction
#16
Samir Sulemane, Vasileios F Panoulas, Athanasios Bratsas, Julia Grapsa, Edwina A Brown, Petros Nihoyannopoulos
Emerging cardiovascular biomarkers, such as speckle tracking echocardiography (STE) and aortic pulse wave velocity (aPWV), have recently demonstrated the presence of subclinical left ventricular dysfunction and arterial stiffening in patients with chronic kidney disease (CKD) and no previous cardiovascular history. However, limited information exists on the prognostic impact of these biomarkers. We aimed to investigate whether STE and aPWV predict major adverse cardiac events (MACE) in this patient population...
January 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28109936/precision-phenotyping-in-heart-failure-and-pattern-clustering-of-ultrasound-data-for-the-assessment-of-diastolic-dysfunction
#17
Alaa Mabrouk Salem Omar, Sukrit Narula, Mohamed Ahmed Abdel Rahman, Gianni Pedrizzetti, Hala Raslan, Osama Rifaie, Jagat Narula, Partho P Sengupta
OBJECTIVES: The aim of this study was to investigate whether cluster analysis of left atrial and left ventricular (LV) mechanical deformation parameters provide sufficient information for Doppler-independent assessment of LV diastolic function. BACKGROUND: Medical imaging produces substantial phenotyping data, and superior computational analyses could allow automated classification of repetitive patterns into patient groups with similar behavior. METHODS: The authors performed a cluster analysis and developed a model of LV diastolic function from an initial exploratory cohort of 130 patients that was subsequently tested in a prospective cohort of 44 patients undergoing cardiac catheterization...
January 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28109547/removal-and-attenuation-of-sewage-effluent-combined-tracer-signals-of-phosphorus-caffeine-and-saccharin-in-soil
#18
Samia Richards, Paul J A Withers, Eric Paterson, Colin W McRoberts, Marc Stutter
Contaminants in septic tank effluent (STE) are expected to be removed by the soil system before discharging to the environment. However, potential contaminants such as phosphorus (P), caffeine and artificial sweeteners do find their way to watercourses impacting aquatic eco systems. In this study, the attenuation of STE P, caffeine and saccharin were investigated in untreated soil and in soil with reduced microbial activity, in aqueous solutions and in the complex matrix of STE. Time series sorption and desorption experiments using batch equilibrium and a column experiment of STE P attenuation were conducted...
January 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28107505/septic-systems-contribution-to-phosphorus-in-shallow-groundwater-field-scale-studies-using-conventional-drainfield-designs
#19
Sara Mechtensimer, Gurpal S Toor
Septic systems can be a potential source of phosphorus (P) in groundwater and contribute to eutrophication in aquatic systems. Our objective was to investigate P transport from two conventional septic systems (drip dispersal and gravel trench) to shallow groundwater. Two new in-situ drainfields (6.1 m long by 0.61 m wide) with a 3.72 m2 infiltrative surface were constructed. The drip dispersal drainfield was constructed by placing 30.5 cm commercial sand on top of natural soil and the gravel trench drainfield was constructed by placing 30...
2017: PloS One
https://www.readbyqxmd.com/read/28100875/the-role-of-thiol-disulphide-homeostasis-in-anthracycline-associated-cardiac-toxicity
#20
Mustafa Topuz, Omer Şen, Mehmet Kaplan, Oguz Akkus, Ozcan Erel, Mustafa Gur
The aim of the present study was to evaluate whether the baseline thiol/disulfide state can predict the occurrence of anthracycline induced cardiac toxicity. A total of 186 cancer patients receiving anthracycline (doxorubicin)-based chemotherapy were enrolled. All patients underwent 2-dimensional (2D) speckle tracking echocardiography (STE) to determine their left ventricular ejection fraction (LVEF) and blood samples for measuring thiol forms were obtained before treatment and 4 weeks after completion of the chemotherapy...
February 7, 2017: International Heart Journal
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