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https://www.readbyqxmd.com/read/29665536/the-effect-of-percutaneous-transluminal-angioplasty-of-superficial-femoral-artery-on-pulse-wave-features
#1
Mikko Peltokangas, Velipekka Suominen, Damir Vakhitov, Jarmo Verho, Janne Korhonen, Jukka Lekkala, Antti Vehkaoja, Niku Oksala
We aimed to analyze the effects of percutaneous transluminal angioplasty (PTA) of the superficial femoral artery (SFA) on arterial pulse waves (PWs). Altogether 24 subjects i.e. 48 lower limbs were examined including 26 treated lower limbs having abnormal ankle-to-brachial pressure index (ABI) (ABI<0.9 or ABI>1.3) and 22 non-treated lower limbs. The measurements were conducted in pre-, peri- and post-treatment phases as well as in follow-up visit after 1 month. Both ABI and toe pressures measured by standard equipment were used as reference values...
April 6, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29663466/first-trimester-screening-for-major-cardiac-defects-based-on-the-ductus-venosus-flow-in-fetuses-with-trisomy-21
#2
Philipp Wagner, Jiri Sonek, Katrin Eberle, Harald Abele, Markus Hoopmann, Natalia Prodan, Karl Oliver Kagan
OBJECTIVE: To examine whether in fetuses with trisomy 21 (T21), the ductus venosus (DV) flow differs in presence of a major cardiac defect (CHD) and whether this affects the risk distribution in first trimester screening for T21. METHODS: Retrospective study involving pregnant women who underwent first trimester screening. This involves an examination of the CRL, the NT, the DV flow, and the heart. 3 groups of fetuses were examined: euploid without CHD, T21 with and without CHD...
April 16, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29662834/liver-stiffness-measured-by-two-dimensional-shear-wave-elastography-prognostic-value-after-radiofrequency-ablation-for-hepatocellular-carcinoma
#3
Dong Ho Lee, Jeong Min Lee, Jung-Hwan Yoon, Yoon Jun Kim, Jeong-Hoon Lee, Su Jong Yu, Joon Koo Han
Purpose: To evaluate the prognostic value of liver stiffness (LS) measured using two-dimensional (2D) shear-wave elastography (SWE) in patients with hepatocellular carcinoma (HCC) treated by radiofrequency ablation (RFA). Methods: The Institutional Review Board approved this retrospective study and informed consent was obtained from all patients. A total of 134 patients with up to 3 HCCs ≤5 cm who had undergone pre-procedural 2D-SWE prior to RFA treatment between January 2012 and December 2013 were enrolled...
March 2018: Liver Cancer
https://www.readbyqxmd.com/read/29661951/role-of-invasive-functional-assessment-in-surgical-revascularization-of-coronary-artery-disease
#4
REVIEW
Bipul Baibhav, Maheedhar Gedela, Michael Moulton, Gregory Pavlides, Vincent Pompili, Tanveer Rab, George Dangas, Deepak L Bhatt, Aleem Siddique, Yiannis S Chatzizisis
In patients with stable coronary artery disease, percutaneous coronary intervention is associated with improved outcomes if the lesion is deemed significant by invasive functional assessment using fractional flow reserve. Recent studies have shown that a revascularization strategy using instantaneous wave-free ratio is noninferior to fractional flow reserve in patients with intermediate-grade stenoses. The decision to perform coronary artery bypass grafting surgery is usually based on anatomic assessment of stenosis severity by coronary angiography...
April 17, 2018: Circulation
https://www.readbyqxmd.com/read/29661659/the-association-between-heat-waves-and-other-meteorological-parameters-and-snakebites-israel-national-study
#5
Sagi Shashar, Maayan Yitshak-Sade, Roman Sonkin, Victor Novack, Eli Jaffe
BACKGROUND: Published annual estimates report a global burden of 2.5 million snakebite cases and >100,000 deaths. In Israel, envenomations are the third most frequent cause of poisonings that are of moderate to major clinical severity. Most studies focus on the clinical descriptions of snakebites in tropical climates, and we sought to investigate the association between snakebite frequency and meteorological parameters. OBJECTIVE: We sought to investigate the seasonality of snakebites and evaluate the association between increasingly common heat waves and other meteorological parameters and snakebite frequency in a semiarid nontropical climate...
April 13, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29661154/cross-sectional-and-longitudinal-factors-influencing-physical-activity-of-65-to-75-year-olds-a-pan-european-cohort-study-based-on-the-survey-of-health-ageing-and-retirement-in-europe-share
#6
Lena Lübs, Jenny Peplies, Carina Drell, Karin Bammann
BACKGROUND: The promotion of physical activity (PA) plays a major role for healthy ageing even in older age. There is a lack of cross-sectional and longitudinal studies explicitly dealing with barriers and drivers to PA in older adults. Therefore the aims of this study are a) to determine the prevalence of insufficient physical activity (IPA) in 65 to 75-year-olds in Europe and to identify factors associated with IPA in cross-section and b) to identify longitudinal risk factors for IPA in prior active persons...
April 16, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29659354/-electrocardiographic-differences-between-apical-hypertrophic-cardiomyopathy-and-apical-non-st-segment-myocardial-infarction
#7
Iván Chillik, Andreina Gil Ramírez, Santiago Ordóñez, Leandro Tomás, Josefina Parodi, Juan Pablo Costabel
Apocal hypertrophic cardiomyopathy (AHCM) is a phenotypic variant within hypertrophic cardiomyopathies, in which ventricular repolarization alterations are present. These electrocardiographic disturbances can mimic an anterior infarction which triggers a series of studies and treatments that may be unnecessary. The aim of this study was to describe and compare electrocardiographic differences in a series of patients with AHCM and apical non-ST segment elevation myocardial infarction in patients (NSTEMI) with T-wave changes...
2018: Medicina
https://www.readbyqxmd.com/read/29658494/multi-resolution-simulation-of-focused-ultrasound-propagation-through-ovine-skull-from-a-single-element-transducer
#8
Kyungho Yoon, Wonhye Lee, Phillip Croce, Amanda Cammalleri, Seung-Schik Yoo
Transcranial focused ultrasound (tFUS) is emerging as a non-invasive brain stimulation modality. Complicated interactions between acoustic pressure waves and osseous tissue introduce many challenges in the accurate targeting of an acoustic focus through the cranium. Image-guidance accompanied by a numerical simulation is desired to predict the intracranial acoustic propagation through the skull; however, such simulations typically demand sophisticated computation, which warrants an expedited processing method to provide on-site feedback for the user in guiding the acoustic focus to a particular brain region...
April 16, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29657043/endothelial-dysfunction-abnormal-vascular-structure-and-lower-urinary-tract-symptoms-in-men-and-women
#9
Shogo Matsui, Masato Kajikawa, Tatsuya Maruhashi, Yumiko Iwamoto, Nozomu Oda, Shinji Kishimoto, Haruki Hashimoto, Takayuki Hidaka, Yasuki Kihara, Kazuaki Chayama, Eisuke Hida, Chikara Goto, Yoshiki Aibara, Ayumu Nakashima, Farina Mohamad Yusoff, Kensuke Noma, Yoshitaka Kuwahara, Akio Matsubara, Yukihito Higashi
BACKGROUND: Lower urinary tract symptoms (LUTS) is not only common symptoms in elderly men and women but also risk of future cardiovascular events. The purpose of this study was to evaluate the relationships of vascular function and structure with LUTS in men and women. METHODS: We investigated flow-mediated vasodilation (FMD) and nitroglycerine-induced vasodilation (NID) as vascular function, brachial-ankle pulse wave velocity (baPWV) as vascular structure, and LUTS assessed by International Prostate Symptom Score (IPSS) in 287 men and 147 women...
June 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29656388/preliminary-results-of-acoustic-radiation-force-impulse-imaging-by-combined-qualitative-and-quantitative-analyses-for-evaluation-of-breast-lesions
#10
Lin Wang, Cai-Feng Wan, Jing Du, Feng-Hua Li
OBJECTIVES: The purpose of this study was to evaluate the application of a new elastographic technique, acoustic radiation force impulse (ARFI) imaging, and its diagnostic performance for characterizing breast lesions. METHODS: One hundred consecutive female patients with 126 breast lesions were enrolled in our study. After routine breast ultrasound examinations, the patients underwent ARFI elasticity imaging. Virtual Touch tissue imaging (VTI) and Virtual Touch tissue quantification (Siemens Medical Solutions, Mountain View, CA) were used to qualitatively and quantitatively analyze the elasticity and hardness of tumors...
April 15, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29656278/anxiety-depression-and-adverse-clinical-outcomes-in-patients-with-atrial-fibrillation-starting-warfarin-cardiovascular-research-network-wave-study
#11
Christine Baumgartner, Dongjie Fan, Margaret C Fang, Daniel E Singer, Daniel M Witt, John R Schmelzer, Marc S Williams, Jerry H Gurwitz, Sue Hee Sung, Alan S Go
BACKGROUND: Anxiety and depression are associated with worse outcomes in several cardiovascular conditions, but it is unclear whether they affect outcomes in atrial fibrillation (AF). In a large diverse population of adults with AF, we evaluated the association of diagnosed anxiety and/or depression with stroke and bleeding outcomes. METHODS AND RESULTS: The Cardiovascular Research Network WAVE (Community-Based Control and Persistence of Warfarin Therapy and Associated Rates and Predictors of Adverse Clinical Events in Atrial Fibrillation and Venous Thromboembolism) Study included adults with AF newly starting warfarin between 2004 and 2007 within 5 health delivery systems in the United States...
April 14, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29651959/central-to-peripheral-arterial-stiffness-gradient-in-hemodialyzed-patients-depends-on-the-location-of-the-upper-limb-vascular-access
#12
Daniel Bia, Cintia Galli, Yanina Zocalo, Rodolfo Valtuille, Sandra Wray, Franco Pessana, Edmundo I Cabrera-Fischer
Pulse wave velocity ratio (PWV-ratio), a measure of central-to-peripheral arterial stiffness gradient, is calculated as a quotient between carotid-femoral and carotid-radial PWV (cf-PWV/cr-PWV). This new index has been reported to be significantly associated with increased mortality in hemodialyzed patients. Since several reports showed differences in arterial stiffness regarding the pathway where the vascular access (VA) is, the purpose of this research was: a) to compare arterial stiffness values obtained in the left and right sides of the body in hemodialyzed and non-hemodialyzed patients, and b) to analyze PWV-ratio values obtained in the side of the body where the VA was placed and compare them to its contralateral intact side...
April 13, 2018: Current Hypertension Reviews
https://www.readbyqxmd.com/read/29651954/forward-and-backward-aortic-components-and-reflection-indexes-in-children-and-adolescents-determinants-and-role-in-high-pressure-states
#13
Yanina Zocalo, Juan M Castro, Victoria Garcia-Espinosa, Santiago Curcio, Pedro Chiesa, Gustavo Giachetto, Edmundo I Cabrera-Fischer, Daniel Bia
High blood pressure states (HBP) would differ in wave components and reflections indexes, which could associate clinical and prognostic implications. AIMS: 1) to characterize the association of aortic wave components and reflection parameters (backward [Pb], forward [Pf], Pb/Pf ratio and augmentation index [AIx]) with demographic, anthropometric, hemodynamic and arterial parameters in healthy children and adolescents; 2) to generate multivariate prediction models for the associations, to contribute to understand main determinants of Pf, Pb, Pb/Pf and AIx; 3) to identify if differences in wave reflection indexes observed in HBP could be explained by differences in the analyzed parameters...
April 12, 2018: Current Hypertension Reviews
https://www.readbyqxmd.com/read/29645022/high-resolution-spectral-analysis-of-ammonia-near-6-2-%C3%AE-m-using-a-cw-ec-qcl-coupled-with-cavity-ring-down-spectroscopy
#14
Sanchi Maithani, Santanu Mandal, Abhijit Maity, Mithun Pal, Manik Pradhan
We report on the development of a mid-infrared cavity ring-down spectrometer (CRDS) coupled with a continuous wave (cw) external cavity quantum cascade laser (EC-QCL), operating between 6.0 μm and 6.3 μm, for high-resolution spectroscopic studies of ammonia (NH3) which served as a bench-mark molecule in this spectral region. We characterized the EC-QCL based CRDS system in detail and achieved a noise-equivalent absorption (NEA) coefficient of 2.11 × 10-9 cm-1 Hz-1/2 for a 100 Hz data acquisition rate. We thereafter exploited the system for high-resolution spectroscopic analysis of interference-free 10 transition lines of the ν4 fundamental vibrational band of NH3 centred at ∼6...
April 12, 2018: Analyst
https://www.readbyqxmd.com/read/29642694/integrated-quadruple-stress-echocardiography
#15
Eugenio Picano, Doralisa Morrone, Maria C Scali, Alda Huqi, Katia Coviello, Quirino Ciampi
Stress Echocardiography (SE) is an established diagnostic technique. For 40 years, the cornerstone of the technique has been the detection of regional wall motion abnormalities (RWMA), due to the underlying physiologically-relevant epicardial coronary artery stenosis. In the last decade, three new parameters (more objective than RWMA) have shown the potential to integrate and comple- ment RWMA: 1- B-lines, also known as ultrasound lung comets, as a marker of extra-vascular lung water, measured using lung ultrasound with the 4-site simplified scan symmetrically of the antero- lateral thorax on the third intercostal space, from mid-axillary to anterior axillary and mid- clavicular line; 2-left ventricular contractile reserve (LVCR), assessed as the peak stress/rest ratio of left ventricular force, also known as elastance (systolic arterial pressure by cuff sphygmomanome- ter/end-systolic volume from 2D echocardiography); 3- coronary flow velocity reserve (CFVR) on left anterior descending coronary artery, calculated as peak stress/rest ratio of diastolic peak flow velocity assessed using pulsed-wave Doppler...
April 11, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29629939/depressive-symptoms-antidepressant-use-and-hypertension-in-young-adulthood
#16
Danielle M Crookes, Ryan T Demmer, Katherine M Keyes, Karestan C Koenen, Shakira F Suglia
BACKGROUND: Among adults, depressive symptoms are associated with higher rates of cardiovascular disease; however, the evidence is mixed regarding the association between depressive symptoms and hypertension, especially among young adults. The deleterious effects of some antidepressant medications on blood pressure may contribute to mixed findings. METHODS: Adolescents enrolled in Add Health (N=11,183) (1994-2008) completed an abbreviated Center for Epidemiologic Studies Depression Scale at three waves (mean ages 16, 22, and 29)...
April 6, 2018: Epidemiology
https://www.readbyqxmd.com/read/29628776/the-association-between-long-term-conditions-and-uptake-of-population-based-screening-for-colorectal-cancer-results-from-two-english-cohort-studies
#17
Benjamin Kearns, Jim Chilcott, Clare Relton, Sophie Whyte, Helen Buckley Woods, Claire Nickerson, Amanda Loban
Introduction: Uptake of screening for colorectal cancer (CRC) can reduce mortality, and population-based screening is offered in England. To date, there is little evidence on the association between having a long-term condition (LTC) and CRC screening uptake. The objective of this study was to examine the association between having an LTC and uptake of CRC screening in England with the guaiac fecal occult blood test, with a particular focus on common mental disorders. Methods: The study was a preregistered secondary analysis of two cohorts: first, a linked data set between the regional Yorkshire Health Study (YHS) and the National Health Service National Bowel Cancer Screening Program (BCSP, years 2006-2014); second, the national English Longitudinal Study of Ageing (ELSA, years 2014-2015)...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29628382/financial-strain-quit-attempts-and-smoking-abstinence-among-u-s-adult-smokers
#18
Sara Kalkhoran, Seth A Berkowitz, Nancy A Rigotti, Travis P Baggett
INTRODUCTION: Cigarette smoking is substantially more prevalent and rates of smoking cessation are lower in low-SES adults. Financial strain may be one explanation for this. This study assessed the association between financial strain, quit attempts, and successful smoking cessation among adult smokers in the U.S. METHODS: Longitudinal data on adult current smokers (aged ≥18 years) from Waves 1 and 2 of the nationally representative Population Assessment of Tobacco and Health Study (2013-2015) were analyzed in 2017...
April 5, 2018: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29628376/childhood-predictors-of-lung-function-trajectories-and-future-copd-risk-a-prospective-cohort-study-from-the-first-to-the-sixth-decade-of-life
#19
Dinh S Bui, Caroline J Lodge, John A Burgess, Adrian J Lowe, Jennifer Perret, Minh Q Bui, Gayan Bowatte, Lyle Gurrin, David P Johns, Bruce R Thompson, Garun S Hamilton, Peter A Frith, Alan L James, Paul S Thomas, Deborah Jarvis, Cecilie Svanes, Melissa Russell, Stephen C Morrison, Iain Feather, Katrina J Allen, Richard Wood-Baker, John Hopper, Graham G Giles, Michael J Abramson, Eugene H Walters, Melanie C Matheson, Shyamali C Dharmage
BACKGROUND: Lifetime lung function is related to quality of life and longevity. Over the lifespan, individuals follow different lung function trajectories. Identification of these trajectories, their determinants, and outcomes is important, but no study has done this beyond the fourth decade. METHODS: We used six waves of the Tasmanian Longitudinal Health Study (TAHS) to model lung function trajectories measured at 7, 13, 18, 45, 50, and 53 years. We analysed pre-bronchodilator FEV1 z-scores at the six timepoints using group-based trajectory modelling to identify distinct subgroups of individuals whose measurements followed a similar pattern over time...
April 5, 2018: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29627842/high-neutrophil-to-lymphocyte-ratio-is-a-significant-predictor-of-cardiovascular-and-all-cause-mortality-in-patients-undergoing-peritoneal-dialysis
#20
Xiangxue Lu, Shixiang Wang, Guizhi Zhang, Ruifang Xiong, Han Li
BACKGROUND/AIMS: Chronic inflammation is associated with increased risk of cardiovascular death in patients with end-stage renal disease (ESRD). Although elevated neutrophil-to-lymphocyte ratio (NLR), a novel inflammatory marker, has been shown to predict cardiovascular disease and all-cause mortality in the general population, limited evidence is available for its role in ESRD. METHODS: We enrolled 86 patients undergoing peritoneal dialysis (PD) for a 36-month follow-up to investigate the association between the NLR and arterial stiffness markers, namely, carotid-femoral pulse wave velocity (cfPWV) and carotid augmentation index (AIx), and mortality in PD patients...
March 29, 2018: Kidney & Blood Pressure Research
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