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https://www.readbyqxmd.com/read/28426680/echocardiographic-findings-in-infants-with-presumed-congenital-zika-syndrome-retrospective-case-series-study
#1
Danielle Di Cavalcanti, Lucas V Alves, Geraldo J Furtado, Cleusa C Santos, Fabiana G Feitosa, Maria C Ribeiro, Paulo Menge, Izabelle M Lira, Joao G Alves
OBJECTIVE: To report the echocardiographic evaluation of 103 infants with presumed congenital Zika syndrome. METHODS: An observational retrospective study was performed at Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife, Brazil. 103 infants with presumed congenital Zika syndrome. All infants had microcephaly and head computed tomography findings compatible with congenital Zika syndrome. Zika IgM antibody was detected in cerebrospinal fluid samples of 23 infants...
2017: PloS One
https://www.readbyqxmd.com/read/28426143/coronal-transcranial-sonography-and-m-mode-tremor-frequency-determination-in-parkinson-s-disease-and-essential-tremor
#2
Daniel Richter, Dirk Woitalla, Siegfried Muhlack, Ralf Gold, Lars Tönges, Christos Krogias
BACKGROUND AND PURPOSE: The axial mesencephalic transcranial sonography plane is an established and sensitive diagnostic tool for the differentiation of Parkinson's disease and essential tremor. However, the substantia nigra can also be depicted in a second coronal examination plane, whose diagnostic value has not yet been evaluated. Furthermore, the M-mode tremor frequency determination represents another sonographic tool, which might yield additional diagnostic value. METHODS: We included patients with diagnosed Parkinson's disease (n = 31), essential tremor (n = 16), and healthy age-matched controls (n = 16)...
April 20, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28422778/ultrasound-as-a-screening-tool-for-central-venous-catheter-positioning-and-exclusion-of-pneumothorax
#3
Rabia Amir, Ziyad O Knio, Feroze Mahmood, Achikam Oren-Grinberg, Akiva Leibowitz, Ruma Bose, Shahzad Shaefi, John D Mitchell, Muneeb Ahmed, Amit Bardia, Daniel Talmor, Robina Matyal
OBJECTIVES: Although real-time ultrasound guidance during central venous catheter insertion has become a standard of care, postinsertion chest radiograph remains the gold standard to confirm central venous catheter tip position and rule out associated lung complications like pneumothorax. We hypothesize that a combination of transthoracic echocardiography and lung ultrasound is noninferior to chest radiograph when used to accurately assess central venous catheter positioning and screen for pneumothorax...
April 18, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28415122/p1138cardiac-shear-wave-velocity-in-healthy-individuals
#4
M Strachinaru, M L Geleijnse, J G Bosch, N De Jong, Afw Van Der Steen, B M Van Dalen, H J Vos
Background: The closure of the valves generates shear waves in the heart walls. The propagation velocity of shear waves relates to stiffness. This could potentially be used to estimate the stiffness of the myocardium, with huge potential implications in pathologies characterized by a deterioration of the diastolic properties of the left ventricle. In an earlier phantom study we already validated shear wave tracking with a clinical ultrasound system in cardiac mode. Purpose: In this study we aimed to measure the shear waves velocity in normal individuals...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28409259/agreement-of-tricuspid-annular-systolic-excursion-measurement-between-transthoracic-and-transesophageal-echocardiography-in-the-perioperative-setting
#5
Anna Flo Forner, Elham Hasheminejad, Sergi Sabate, Michael A Ackermann, Edwin W Turton, Joerg Ender
OBJECTIVE: The aim of our study was to evaluate the level of agreement between tricuspid annular plane systolic excursion (TAPSE) measured by transthoracic echocardiography (TTE) and TAPSE measured using transesophageal echocardiography (TEE) in anesthetized patients. MATERIALS AND METHODS: Thirty patients scheduled for elective cardiac surgery were prospectively studied. Shortly after induction of anesthesia before the operation, TAPSE was measured by TTE using M-mode in apical 4chamber view (4CH) and by TEE in six different views: using 2D echocardiography in midesophageal (ME) 4CH view, using M-mode in deep transgastric right ventricle (dTG RV) view at 0° and dTG RV longaxis view (LAX) as well as using anatomical M-mode (AM-mode) in ME 4CH, dTG RV at 0° and dTG RV LAX views...
April 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28403412/reduced-hemidiaphragmatic-paresis-with-extrafascial-compared-with-conventional-intrafascial-tip-placement-for-continuous-interscalene-brachial-plexus-block-a-randomized-controlled-double-blind-trial
#6
E Albrecht, I Bathory, N Fournier, A Jacot-Guillarmod, A Farron, R Brull
Background.: The incidence of hemidiaphragmatic paresis with continuous interscalene brachial plexus block (CISB) can approach 100%. We tested the hypothesis that extrafascial placement of the catheter tip reduces the rate of hemidiaphragmatic paresis compared with intrafascial tip placement for CISB while providing effective analgesia. Methods.: Seventy patients undergoing elective major shoulder surgery under general anaesthesia were randomized to receive an ultrasound-guided CISB plexus block for analgesia with the catheter tip placed either within (intrafascial group) or immediately outside (extrafascial group) the brachial plexus sheath midway between the levels of C5 and C6...
April 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28400069/diagnostic-accuracy-of-a-novel-software-technology-for-detecting-pneumothorax-in-a-porcine-model
#7
Shane M Summers, Eric J Chin, Michael D April, Ronald D Grisell, Joshua A Lospinoso, Bijan S Kheirabadi, Jose Salinas, Lorne H Blackbourne
INTRODUCTION: Our objective was to measure the diagnostic accuracy of a novel software technology to detect pneumothorax on Brightness (B) mode and Motion (M) mode ultrasonography. METHODS: Ultrasonography fellowship-trained emergency physicians performed thoracic ultrasonography at baseline and after surgically creating a pneumothorax in eight intubated, spontaneously breathing porcine subjects. Prior to pneumothorax induction, we captured sagittal M-mode still images and B-mode videos of each intercostal space with a linear array transducer at 4cm of depth...
April 1, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28378431/left-ventricular-biomechanics-in-professional-football-players
#8
Thomas G von Lueder, Anders Hodt, Gard F Gjerdalen, Kjetil Steine
Chronic exercise induces adaptive changes of left ventricular (LV) ejection and filling capacities which may be detected by novel speckle-tracking echocardiography (STE) and tissue Doppler imaging (TDI)-based techniques. 103 consecutive male elite Norwegian soccer players and 46 age-matched healthy controls underwent echocardiography at rest. STE was used to assess LV torsional mechanics and LV systolic longitudinal strain (LS). Diastolic function was evaluated by trans-mitral blood flow, mitral annular velocities by TDI, and LV inflow propagation velocity by colour M-mode...
April 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28370313/mitral-annular-plane-systolic-excursion-and-tricuspid-annular-plane-systolic-excursion-in-cats-with-hypertrophic-cardiomyopathy
#9
I Spalla, J R Payne, K Borgeat, A Pope, V Luis Fuentes, D J Connolly
BACKGROUND: Left ventricular (LV) systolic dysfunction is associated with increased risk of death in cats with hypertrophic cardiomyopathy (HCM). Mitral and tricuspid annular plane systolic excursion (MAPSE and TAPSE, respectively) are measures of longitudinal systolic function and are reduced in human patients with HCM. HYPOTHESES: Cats with HCM have lower MAPSE and TAPSE compared to control cats; lower MAPSE and TAPSE are associated with the presence of congestive heart failure (CHF) and reduced survival time...
March 30, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28339131/tissue-deformation-index-as-a-reliable-measure-of-lateral-abdominal-muscle-activation-on-m-mode-sonography
#10
Maciej Biały, Wacław Adamczyk, Rafael Gnat, Tomasz Stranc
The aim of this article is to present a novel method of evaluating the activity of lateral abdominal muscles using M-mode sonography. The method leads to calculation of the tissue deformation index, representing the percent change in lateral abdominal muscle thickness over time. The objectives of this study were as follows: (1) to establish the mean tissue deformation index values for individual lateral abdominal muscles; and (2) to establish the reliability of the tissue deformation index. In a group of 34 healthy young volunteers (mean age, 24...
March 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28320997/prognostic-impact-of-diastolic-wall-strain-in-patients-at-risk-for-heart-failure
#11
Masatoshi Minamisawa, Takashi Miura, Hirohiko Motoki, Yasushi Ueki, Kunihiko Shimizu, Wataru Shoin, Mikiko Harada, Tomoaki Mochidome, Koji Yoshie, Yasutaka Oguchi, Naoto Hashizume, Hitoshi Nishimura, Naoyuki Abe, Soichiro Ebisawa, Atsushi Izawa, Jun Koyama, Uichi Ikeda
Diastolic wall strain (DWS) is based on the linear elastic theory, according to which decreased wall thinning during diastole reflects reduced left ventricular compliance and thus increased diastolic stiffness. Increased diastolic stiffness as assessed by DWS is associated with a worse prognosis in patients who have heart failure (HF) with preserved ejection fraction. However, there are no data about the prognostic value of DWS derived by M-mode echocardiography in patients at risk for HF. We retrospectively enrolled 1829 consecutive patients without prior HF who were hospitalized for cardiovascular (CV) diseases in our hospital between 2005 and 2012...
March 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28299305/the-role-of-inflammatory-processes-in-occurrence-of-left-ventricular-failure-in-patients-with-chronic-kidney-disease
#12
Hassan Shemirani, Sara Tavakol, Abdolamir Atapoor, Jafar Golshahi
BACKGROUND: Recently, the relationship between increased level of inflammatory mediators and occurrence of left ventricular failure in patients with kidney disease has been suggested. The present study attempted to assess relationship between inflammatory mediators and occurrence of left ventricular failure in patients with chronic kidney disease. MATERIALS AND METHODS: This cross-sectional study was performed at Noor and Hazrat Aliasghar hospital in Isfahan between September 2012 to September 2013 on patients aged >19 years that referred for following their chronic kidney disease...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28288761/pulmonary-hypertension-in-dogs-with-heartworm-before-and-after-the-adulticide-protocol-recommended-by-the-american-heartworm-society
#13
B Serrano-Parreño, E Carretón, A Caro-Vadillo, S Falcón-Cordón, Y Falcón-Cordón, J A Montoya-Alonso
Pulmonary hypertension (pH) is a frequent and severe phenomenon in heartworm disease (Dirofilaria immitis). There is a lack of studies assessing the evolution of the proliferative endarteritis and pH caused by D. immitis after the death of the parasites, so this study evaluated the influence that the elimination of the worms exerts over the pulmonary pressure and therefore evolution of the endarteritis, through the evaluation of the Right Pulmonary Artery Distensibility (RPAD) Index and other echocardiographic measurements in 2D mode, M-mode and Doppler echocardiography in 34 dogs naturally infected by D...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28285896/perinatal-changes-in-fetal-ventricular-geometry-myocardial-performance-and-cardiac-function-in-normal-term-pregnancies
#14
Olga Patey, Michael A Gatzoulis, Basky Thilaganathan, Julene S Carvalho
BACKGROUND: The fetal heart at term is exposed to an increase in hemodynamic work as a consequence of fetal growth, increased circulating volume, and alteration in loading patterns due to maturational changes in fetoplacental circulation. The extent to which these cardiovascular changes influence human fetal and neonatal cardiac adaptation has not been fully elucidated. The aim of this study was to evaluate perinatal cardiovascular changes in ventricular geometry and myocardial performance in normal term fetuses...
March 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28264227/comparison-of-thoracic-ultrasonography-and-radiography-for-the-detection-of-induced-small-volume-pneumothorax-in-the-horse
#15
Jessica Partlow, Florent David, Luanne Michelle Hunt, Fabien Relave, Laurent Blond, Manuel Pinilla, Jean-Pierre Lavoie
Small volume pneumothorax can be challenging to diagnose in horses. The current standard method for diagnosis is standing thoracic radiography. We hypothesized that thoracic ultrasonography would be more sensitive. Objectives of this prospective, experimental study were to describe a thoracic ultrasound method for detection of small volume pneumothorax in horses and to compare results of radiography and ultrasound in a sample of horses with induced small volume pneumothorax. Six mature healthy horses were recruited for this study...
March 6, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28246444/m-mode-echocardiographic-reference-values-in-pantja-goats
#16
Parul Singh, Narendra Singh Jadon, Deepti Bodh, Manjul Kandpal
AIM: The aim of this study was to establish M-mode echocardiographic reference values in Pantja goats and to study the effect of gender and body weight (BW) on these parameters. MATERIALS AND METHODS: A total of 18, clinically healthy, adult Pantja goats of either sex, aged 2-4 years and weighing 10-44 kg were included in the study. Echocardiographic examination was performed in the standing unsedated animal. All measurements were made from the right parasternal long-axis left ventricular outflow tract view of the heart...
January 2017: Veterinary World
https://www.readbyqxmd.com/read/28244588/investigation-of-opg-rank-rankl-genes-as-a-genetic-marker-for-cardiac-abnormalities-in-thalassemia-major-patients
#17
Mable Misha Singh, Ravindra Kumar, Satyendra Tewari, Sarita Agarwal
OBJECTIVE: The aim of the study was to investigate the role of osteoprotegerin (OPG)/RANK/RANKL variants in left ventricular hypertrophy (LVH) and diastolic dysfunction in thalassemia major patients MATERIALS AND METHOD: One hundred and five beta-thalassemia patients who were older than 10 years of age were enrolled for the study. Two-dimensional and M-mode echocardiography analysis was done in all patients. Genotyping for OPG [rs2073617 (950 T>C), rs2073618 (1181G>C)], RANK [(rs1805034(+34694 C>T), rs12458117 (+34901 G>A) and rs75404003 (+35966insdelC)], and RANKL (rs2277438, rs9594782) variants was done using the PCR-RFLP method...
February 28, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28236534/computer-based-algorithmic-determination-of-muscle-movement-onset-using-m-mode-ultrasonography
#18
Andrew J Tweedell, Courtney A Haynes, Matthew S Tenan
The study purpose was to evaluate the use of computer-automated algorithms as a replacement for subjective, visual determination of muscle contraction onset using M-mode ultrasonography. Biceps and quadriceps contraction images were analyzed visually and with three different classes of algorithms: pixel standard deviation (SD), high-pass filter and Teager Kaiser energy operator transformation. Algorithmic parameters and muscle onset threshold criteria were systematically varied within each class of algorithm...
May 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28229480/echocardiographic-evaluation-of-right-ventricular-function-in-preterm-infants-with-bronchopulmonary-dysplasia
#19
Renata Bokiniec, Paweł Własienko, Maria Borszewska-Kornacka, Joanna Szymkiewicz-Dangel
AIM: To evaluate right ventricular function in preterm infants with and without bronchopulmonary dysplasia. METHODS: Eighty-nine preterm infants (<32 weeks) were divided into three groups: (1) no-bronchopulmonary dysplasia (n=32); (2) mild-bronchopulmonary dysplasia (n=35); (3) severe-bronchopulmonary dysplasia (n=15). Right ventricular echocardiographic parameters included the following: (1) pulsed-wave Doppler through the tricuspid valve (E/A ratio), pulmonary artery acceleration time, right ventricular ejection time, right ventricular velocity-time integral; (2) tissue Doppler measurements of myocardial velocities and atrioventricular conduction times; (3) pulsed-wave Doppler and tissue Doppler evaluation of myocardial performance index and E/E' ratio; and (4) M-mode detection of right ventricular end-diastolic wall diameter...
February 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28176821/spatial-variation-and-inconsistency-between-estimates-of-onset-of-muscle-activation-from-emg-and-ultrasound
#20
Angela V Dieterich, Alberto Botter, Taian Martins Vieira, Anneli Peolsson, Frank Petzke, Paul Davey, Deborah Falla
Delayed onset of muscle activation can be a descriptor of impaired motor control. Activation onset can be estimated from electromyography (EMG)-registered muscle excitation and from ultrasound-registered muscle motion, which enables non-invasive measurements in deep muscles. However, in voluntary activation, EMG- and ultrasound-detected activation onsets may not correspond. To evaluate this, ten healthy men performed isometric elbow flexion at 20% to 70% of their maximal force. Utilising a multi-channel electrode transparent to ultrasound, EMG and M(otion)-mode ultrasound were recorded simultaneously over the biceps brachii muscle...
February 8, 2017: Scientific Reports
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