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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/28912040/inaccuracy-of-right-atrial-pressure-estimates-through-inferior-vena-cava-indices
#2
Corrado Magnino, Pierluigi Omedè, Eleonora Avenatti, Davide Presutti, Andrea Iannaccone, Michela Chiarlo, Claudio Moretti, Fiorenzo Gaita, Franco Veglio, Alberto Milan
The precision of echocardiography in estimating pulmonary pressures has been debated. A value of right atrial pressure (RAP) is needed for pulmonary pressure estimation, and it could be partly responsible for the estimation error. Several schemes based on the inferior vena cava (IVC) are commonly used in clinical practice and in experimental studies for RAP estimation. However, the majority lack proper validation, and thus far, no study has compared them all. In this prospective, blinded study, a comprehensive transthoracic echocardiography was performed on 200 patients referred for right heart catheterization...
July 31, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28902265/-model-for-a-risk-focused-approach-to-health-inspection-surveillance-and-control-in-colombia
#3
Álvaro Aroca, Javier Guzmán
Colombian Ministry of Health Resolution 1229 of 2013 established that health inspection, surveillance, and control (IVC, Spanish acronym) should be based on a risk-focused approach. In 2014 Colombia´s National Food and Drugs Surveillance Institute (INVIMA) designed and implemented a risk-based health surveillance model called IVC-SOA. This model measures the risks of drugs, medical devices, food, and cosmetics by taking into account three factors: severity of the product (S), occurrence of product failure (O), and the potentially affected population (A) - hence its name, SOA...
August 21, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28880382/reproducibility-of-point-of-care-ultrasonography-for-central-vein-diameter-measurement-separating-image-acquisition-from-interpretation
#4
Brian P Lucas, Antonietta D'Addio, Jennifer Clark, Clay Block, Harold Manning, Brian Remillard, J C Leiter
PURPOSE: Central vein point-of-care ultrasonography must be reproducible to detect intravascular volume changes. We sought to determine which measurement step, image acquisition or interpretation, could be more compromising for reproducibility. METHODS: Three investigators each acquired inferior vena cava (IVC) and internal jugular (IJV) vein ultrasonographic sequences (US) from a convenience sample of 21 hospitalized general medicine participants and then interpreted each US three separate times...
October 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28868586/the-correlation-between-inferior-vena-cava-diameter-measured-by-ultrasonography-and-central-venous-pressure
#5
Hans Vaish, Virendra Kumar, Rama Anand, Viswas Chhapola, Sandeep Kumar Kanwal
OBJECTIVE: To find a correlation between inferior vena cava (IVC) diameters, IVC compressibility index (CI) and central venous pressure (CVP). METHODS: Prospective observational study was done at pediatric intensive care unit (PICU) of Kalawati Saran Children's Hospital (KSCH). Fifty children aged 5-18 y, presenting with shock were enrolled for the study. IVC diameters, CI and relevant clinical data were noted at enrollment, 30 min, 1 h, 6 h, and 12 h. Central line was placed at the time of admission...
September 4, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28762449/the-value-of-internal-jugular-vein-collapsibility-index-in-sepsis
#6
Murat Haliloğlu, Beliz Bilgili, Alper Kararmaz, İsmail Cinel
BACKGROUND: Rapid, accurate, and reproducible assessment of intravascular volume status is crucial in order to predict the efficacy of volume expansion in septic patients. The aim of this study was to verify the feasibility and usefulness of the internal jugular vein collapsibility index (IJV-CI) as an adjunct to the inferior vena cava collapsibility index (IVC-CI) to predict fluid responsiveness in spontaneously-breathing patients with sepsis. METHODS: Three stages of sonographic scanning were performed...
July 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28751054/the-role-of-bioelectrical-impedance-analysis-nt-probnp-and-inferior-vena-cava-sonography-in-the-assessment-of-body-fluid-volume-in-children-with-nephrotic-syndrome
#7
Hulya Nalcacioglu, Ozan Ozkaya, Kemal Baysal, Hassan Candas Kafali, Bahattin Avci, Demet Tekcan, Gurkan Genc
BACKGROUND: Assessment of volume status and differentiating "underfill" and "overfill" edema is essential in the management of patients with nephrotic syndrome (NS). OBJECTIVES: Our aim was to evaluate the volume status of NS patients by using different methods and to investigate the utility of bioelectrical impedance analysis (BIA) in children with NS. METHODS: The hydration status of 19 patients with NS (before treatment of NS and at remission) and 25 healthy controls was assessed by multifrequency BIA, serum N-terminal-pro-brain natriuretic peptide (NT-proBNP) levels, inferior vena cava (IVC) diameter, left atrium diameter (LAD) and vasoactive hormones...
July 24, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28736288/rapid-decay-of-transthoracic-echocardiography-skills-at-1-month-a-prospective-observational-study
#8
Ryo Yamamoto, David Clanton, Ross E Willis, Rachelle Babbitt Jonas, Ramon F Cestero
OBJECTIVE: Focused transthoracic echocardiography (FTTE) is an emerging tool in the management of critically ill patients, but the lack of adequate training models has limited the expansion of this technology. Although basic FTTE training courses have been shown to be sufficient in developing echocardiography skills, limited data exist regarding skill retention. In an effort to develop an adequate FTTE training model, we sought to determine the degree of skill retention after FTTE training...
July 20, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28708286/baseline-diameters-of-inferior-vena-cava-and-abdominal-aorta-measured-by-ultrasonography-in-healthy-term-neonates-during-early-neonatal-adaptation-period
#9
Anna Jarosz-Lesz, Katarzyna Michalik, Iwona Maruniak-Chudek
OBJECTIVES: To evaluate normative sonographic measurements of the inferior vena cava (IVC), aorta (Ao), and IVC/Ao ratio in the first 2 days of life in term neonates. METHODS: We prospectively observed 200 term (more than 36 and 6/7 weeks of gestation), single, healthy neonates born in a city hospital. The exclusion criteria were congenital abnormalities, an Apgar score of less than 8, and hyperbilirubinemia requiring phototherapy. Maximum IVC (distal to the hepatic-IVC junction) and Ao (above the superior mesenteric artery) diameters were measured in the first 2 days of life in the longitudinal plane...
July 14, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28706106/detailed-assessment-of-benefits-and-risks-of-retrievable-inferior-vena-cava-filters-on-patients-with-complicated-injuries-the-da-vinci-multicentre-randomised-controlled-trial-study-protocol
#10
Kwok M Ho, Sudhakar Rao, Stephen Honeybul, Rene Zellweger, Bradley Wibrow, Jeffrey Lipman, Anthony Holley, Alan Kop, Elizabeth Geelhoed, Tomas Corcoran
INTRODUCTION: Retrievable inferior vena cava (IVC) filters have been increasingly used in patients with major trauma who have contraindications to anticoagulant prophylaxis as a primary prophylactic measure against venous thromboembolism (VTE). The benefits, risks and cost-effectiveness of such strategy are uncertain. METHODS AND ANALYSIS: Patients with major trauma, defined by an estimated Injury Severity Score >15, who have contraindications to anticoagulant VTE prophylaxis within 72 hours of hospitalisation to the study centre will be eligible for this randomised multicentre controlled trial...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28686319/magnetic-resonance-thermometry-of-flowing-blood
#11
Chinthaka C Heyn, Jonathan Bishop, Kyle Duffin, Wayne Lee, Jun Dazai, Shoshana Spring, Brian J Nieman, John G Sled
Blood temperature is a key determinant of tissue temperature and can be altered under normal physiological states, such as exercise, in diseases such as stroke or iatrogenically in therapies which modulate tissue temperature, such as therapeutic hypothermia. Currently available methods for the measurement of arterial and venous temperatures are invasive and, for small animal models, are impractical. Here, we present a methodology for the measurement of intravascular and tissue temperature by magnetic resonance imaging (MRI) using the lanthanide agent TmDOTMA(-) (DOTMA, tetramethyl-1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid; Tm, thulium)...
July 7, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28667425/effectiveness-of-catheter-directed-thrombolysis-and-stent-implantation-on-iliofemoral-vein-thrombosis-caused-by-iliac-vein-compression
#12
Zhi-Bing Ming, Wen-Dong Li, Rui-Fan Yuan, Xiao-Qiang Li, Wen-Bin Ding
The purpose of this study was to objectively assess the morbidity of post-thrombotic syndrome (PTS) in iliofemoral vein thrombosis treated with catheter-directed thrombolysis (CDT) and stenting under the protection of inferior vena cava (IVC) filter. All patients with an unprovoked episode of iliofemoral vein thrombosis combined with iliac vein compression syndrome (IVCS) during January 2011 and January 2015 were enrolled. Clinical records of all patients were evaluated. Firstly, cox regression was performed to find out the factors impacted the incidence of PTS...
August 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28658004/is-the-collapsibillity-index-of-the-inferior-vena-cava-an-accurate-predictor-for-the-early-detection-of-intravascular-volume-change
#13
Jianjun Gui, Zhengfei Yang, Bing Ou, Anding Xu, Fan Yang, Qiaozhu Chen, Longyuan Jiang, Wanchun Tang
The ultrasonographic evaluation of inferior vena cava (IVC) parameters, particularly the collapsibility index (CI), has been widely used in the assessment of the fluid responsiveness (FR) of critically ill patients, but the results are conflicting. In this study, we aimed to investigate the early change in CI after increased intravascular volume (IVV) induced by passive leg raising (PLR). A total of 145 healthy volunteers over 18 years old were enrolled between September and December in 2015. Before and 2 min after PLR, the maximum and minimum IVC diameter (maxIVC and minIVC) were measured by color Doppler ultrasonography, and the difference in CI (ΔCI) was calculated...
June 27, 2017: Shock
https://www.readbyqxmd.com/read/28641368/glomerular-hyperfiltration-in-obese-african-american-hypertensive-patients-is-associated-with-elevated-urinary-mitochondrial-dna-copy-number
#14
Alfonso Eirin, Ahmed Saad, John R Woollard, Luis A Juncos, David A Calhoun, Hui Tang, Amir Lerman, Stephen C Textor, Lilach O Lerman
BACKGROUND: Glomerular hyperfiltration may contribute to the high incidence of renal disease in Obese African Americans essential hypertensive (ObAAEH) patients, but the precise mechanisms responsible for renal injury have not been elucidated. Mitochondria are important determinants of renal injury in hypertension, and increased levels of mitochondrial DNA (mtDNA) in the urine may indicate renal mitochondrial injury. We hypothesized that urine mtDNA copy numbers would be higher in ObAAEH compared to Caucasian essential hypertensive (CEH) patients...
June 14, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28639747/the-effect-of-activation-rate-on-left-atrial-bipolar-voltage-in-patients-with-paroxysmal-atrial-fibrillation
#15
Steven E Williams, Nick Linton, Louisa O'Neill, James Harrison, John Whitaker, Rahul Mukherjee, Christopher A Rinaldi, Jaswinder Gill, Steven Niederer, Matthew Wright, Mark O'Neill
INTRODUCTION: Bipolar voltage is used during electroanatomic mapping to define abnormal myocardium, but the effect of activation rate on bipolar voltage is not known. We hypothesized that bipolar voltage may change in response to activation rate. By examining corresponding unipole signals we sought to determine the mechanisms of such changes. METHODS AND RESULTS: LA extrastimulus mapping was performed during CS pacing in 10 patients undergoing 1(st) time paroxysmal atrial fibrillation ablation...
June 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28634780/echocardiographic-inferior-vena-cava-measurement-as-an-alternative-to-central-venous-pressure-measurement-in-neonates
#16
Muzamil Mustafa Mugloo, Seema Malik, Rubeena Akhtar
OBJECTIVES: To evaluate the correlation between echocardiographic inferior vena cava (IVC) measurements and central venous pressure (CVP) in neonates. Also, to evaluate the correlation between IVC measurements and gestational age (GA) and body weight (BW). METHODS: This cross sectional analytical study was conducted from June 2014 through June 2016 in a level III NICU. All neonates requiring intensive hemodynamic monitoring and having umbilical venous catheter (UVC) in place for clinical indications were enrolled in the study...
June 21, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28634555/a-rare-case-of-pneumopericardium-in-the-setting-of-tuberculous-constrictive-pericarditis
#17
Lauro L Abrahan Iv, Stephanie Martha O Obillos, Jaime Alfonso M Aherrera, Jose Donato A Magno, Celia Catherine C Uy-Agbayani, Ulysses King G Gopez, Jobelle Joyce Anne R Baldonado
A 28-year-old Filipino male was admitted due to high-grade fevers and dyspnea on a background of chronic cough and weight loss. Due to clinical and echocardiographic signs of cardiac tamponade, emergency pericardiocentesis was performed on his first hospital day. Five days after, chest radiographs showed new pockets of radiolucency within the cardiac shadow, indicative of pneumopericardium. On repeat echo, air microbubbles admixed with loculated effusion were visualized in the anterior pericardial space. Constrictive physiology was also supported by a thickened pericardium, septal bounce, exaggerated respiratory variation in AV valve inflow, and IVC plethora...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28629571/detection-and-characterization-of-budd-chiari-syndrome-with-inferior-vena-cava-obstruction-comparison-of-fixed-and-flexible-delayed-scan-time-of-computed-tomography-venography
#18
Peng-Li Zhou, Gang Wu, Xin-Wei Han, Yong-Hua Bi, Wen-Guang Zhang, Zheng-Yang Wu
PURPOSE: To compare the results of computed tomography venography (CTV) with a fixed and a flexible delayed scan time for Budd-Chiari syndrome (BCS) with inferior vena cava (IVC) obstruction. MATERIAL AND METHODS: A total of 209 consecutive BCS patients with IVC obstruction underwent either a CTV with a fixed delayed scan time of 180s (n=87) or a flexible delayed scan time for good image quality according to IVC blood flow in color Doppler ultrasonography (n=122)...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28626072/5-ht-causes-splanchnic-venodilation
#19
Bridget Mahon Seitz, Hakan Orer, Teresa Krieger-Burke, Emma S Darios, Janice M Thompson, Gregory D Fink, Stephanie W Watts
Serotonin (5-HT, 5-hydroxytrypamine) causes relaxation of the isolated superior mesenteric vein (SMV), a splanchnic blood vessel, through activation of the 5-HT7 receptor. As part of studies designed to identify the mechanism(s) through which chronic (>24 hours) infusion of 5-HT lowers blood pressure, we test the hypothesis that 5-HT causes an in vitro and in vivo splanchnic venodilation that is 5-HT7 receptor-dependent. In tissue baths for measurement of isometric contraction, the portal vein (PV) and abdominal inferior vena cava (Ab IVC) relaxed to 5-HT and the 5-HT1/7 receptor agonist 5-carboxamidotryptamine (5-CT); relaxation was abolished by the 5-HT7 receptor antagonist SB269970...
June 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28625548/effect-of-a-change-in-housing-conditions-on-body-weight-behavior-and-brain-neurotransmitters-in-male-c57bl-6j-mice
#20
Noemi Pasquarelli, Patrizia Voehringer, Julia Henke, Boris Ferger
The development of modern housing regimes such as individually ventilated cage (IVC) systems has become very popular and attractive in order to reduce spreading of pathogenic organisms and to lower the risk to develop a laboratory animal allergy for staff members. Additionally, optimal housing of laboratory animals contributes to improve animal health status and ensures high and comparable experimental and animal welfare standards. However, it has not been clearly elucidated whether 1) a change to IVC systems have an impact on various physiological phenotypic parameters of mice when compared to conventional, standard cages and 2) if this is further affected by changing from social to single housing...
June 15, 2017: Behavioural Brain Research
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