Abstract：
:A group of 15 chronic opioid addicts (DA) with mean age 26.5+/-7.3 years was studied by means of a rotational Contraves Low Shear 30 viscometer and the results have been compared with a control group of 19 healthy subjects. It was found that the mean whole blood viscosity values of the investigated group of heroin abusers (n=15) were elevated compared to that of healthy persons (n=19) over the whole shear rate range and fell by more than ten orders of magnitude (Savov et al., 2006). The present investigation uses the coefficients of the models of Ostwald-de-Walle (power law) and Herschel-Bulkley law, which describe whole blood flow curves (tau-gamma) within the shear rates range from 10(-2) to 10(2) s(-1) and itself incorporate whole blood viscosity data in the entire shear rate range. A significant difference in the mean yield shear stress tau(0) values of the drug abusers' group compared to the controls was found. A strong positive linear correlation was determined between the parameters of RBC aggregation in the group of heroin addicts confirming our previous results (Ivanov and Antonova, 2005; Savov, Zvetkova et al., 2007; Savov, Antonova et al., 2007) for intensive RBC and platelet aggregation and morphological changes in DA group.
journal_name
Clin Hemorheol Microcircjournal_title
Clinical hemorheology and microcirculationauthors
Antonova N,Zvetkova E,Ivanov I,Savov Ysubject
Has Abstractpub_date
2008-01-01 00:00:00pages
53-61issue
1-4eissn
1386-0291issn
1875-8622journal_volume
39pub_type
杂志文章abstract：:Vascular homeostasis involves endothelial function, smooth muscle function, central hemodynamics, and their interactions with blood. In this complex balance, the role of hemorheological parameters still needs to be defined, particularly with regards to its clinical implications. While the importance of microcirculatio...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-168017
更新日期：2016-01-01 00:00:00
abstract：:Erythrocyte deformability could be a suitable parameter reflecting hyposplenic-asplenic conditions after splenectomy or spleen autotransplantation. The aim of this study was to analyze the efficacy of spleen autotransplantation using filtrometry and ektacytometry for testing erythrocyte deformability, besides complex ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-2010-1307
更新日期：2010-01-01 00:00:00
abstract：PURPOSE:To compare the value of high-resolution contrast-enhanced ultrasound in the detection and characterisation of endoleaks after EVAR. MATERIAL AND METHODS:In this retrospective study, a cohort of 80 patients underwent both standard examination using a curved array 5 MHz transducer and a second examination using ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-141896
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVE:To investigate the extent to which B-flow and B-flow with 3D postprocessing and speckle reduction imaging (SRI) have advantages in appraising the morphology of a high-grade stenosis of the internal carotid artery (ICA) for preinterventional planning and for postinterventional ultrasonographic follow-up. MATE...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:In order to further characterize the alterations of erythrocyte aggregation described in ovarian cancer, we measured it with laser backscattering in eleven women suffering from ovarian cancer (mean age: 44.7 +/- 3.6, extreme values: 28-61 yr) compared with thirteen matched control women. Blood rheology exhibited a wid...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND:Previously, hemorheology studies using Rheoscan mainly focused on chronic kidney disease, cardiovascular disease, and endocrine disease in adults. The study using LORCA focused on erythrocyte disease. There were no studies using Rheoscan in children. OBJECTIVE:We aimed to investigate erythrocyte deformabili...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-200817
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:Capsular contractures around breast implants usually develop leading to pain and aesthetically inadequate results and ultimately often requires the replacement of the implants. Textured silicone implants are the most commonly placed implant, but polyurethane-coated implants are increasingly being used in an ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-200875
更新日期：2020-09-08 00:00:00
abstract：:Disputes on the significance of cerebral lymphatic drainage pathways under physiological and pathophysiological conditions still exist. The purpose of this experiment is to investigate the influence of cerebral lymphatic blockage on cerebral blood flow and cortex somatosensory evoked potential. Wistar rat cerebral lym...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Hemorheologic factors such as red blood cell (RBC) aggregation and deformability differ according to species. In many comparative hemorheologic studies, only venous blood samples have been used for measurements. There is little published information comparing arterial and venous blood differences between spe...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-2010-1248
更新日期：2010-01-01 00:00:00
abstract：:The data on the viscosities of radiographic contrast media (RCM) in the literature diverge, sometimes considerably. A direct comparative study of RCM appears reasonable and necessary, since different studies have been based on the assumption of the correctness of historical data from the literature. RCM viscosities in...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-131783
更新日期：2013-01-01 00:00:00
abstract：:Nitric oxide (NO) has a role in the pathophysiology of acute and chronic cardiovascular events. We studied the plasma concentration of NO stable end products (nitrite and nitrate--NOx) in 43 patients aged<46 years, with recent acute myocardial infarction (AMI). The evaluation was effected at the initial stage, after 3...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:The present experiment attempted to evaluate the effect of electrical acupuncture on the cerebral microcirculation in anesthetized rats, using fluorescence videomicroscopy. Changes in the pial arteriolar diameter under acute hemorrhagic hypotension were examined quantitatively. The present results suggest that acupunc...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：OBJECTIVE:To identify the indications for CEUS in renal imaging in an interdisciplinary ultrasound department. METHODS:102 CEUS examinations of the kidney in 82 patients between September 2014 and July 2016 were analysed regarding the indication for ultrasound. CEUS was performed by one experienced sonographer agent a...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-179103
更新日期：2017-01-01 00:00:00
abstract：PURPOSE:To evaluate the combination of conventional ultrasound (US) and acoustic radiation force impulse (ARFI) elastography in predicting triple-negative breast cancer and the likelihood of lymphatic metastasis. MATERIALS AND METHODS:A total of 178 women presenting from May 2013 to September 2015 with pathologically ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-16196
更新日期：2017-01-01 00:00:00
abstract：:The involvement of plasma nitric oxide metabolites (NO(x)) in hypertension was examined in stroke-resistant spontaneously hypertensive rats during the development of hypertension. Continuous application of a static magnetic field (SMF; a maximum magnetic flux density of 180 millitesla, a peak magnetic gradient of 133 ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:Polycarbonate (PC) substrate is well suited for culturing human mesenchymal stem cells (MSCs) with high proliferation rate, low cell apoptosis rate and negligible cytotoxic effects. However, little is known about the influence of PC on MSC activity including senescence, differentiation and secretion. In this study, th...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-189322
更新日期：2018-01-01 00:00:00
abstract：AIM:To investigate three-year outcomes of patients presenting with nonSTelevation acute coronary syndrome (NSTE-ACS) treated with bioresorbable everolimus-eluting vascular scaffolds (BRS). METHODS AND RESULTS:The study included a total of 488 consecutive patients, enrolled between May 2012 and December 2013 (median ag...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-189101
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Patients having coronary artery disease treated by coronary bypass or PCI procedure are exposed to tissue damage because of the phenomenon called reperfusion injury. Reperfusion injury can be characterized/monitored by oxidative stress parameters, inflammatory markers and by post-operative complication rate....
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章,随机对照试验
doi：10.3233/CH-170270
更新日期：2017-01-01 00:00:00
abstract：:In the vascular system, the shear applied to the vascular wall activates mechano-sensors located on endothelial cells (ECs) leading to a modification in the gene expression profile. We applied laminar shear stress at 1 Pa on ECs for 6 h and measured by quantitative real time PCR the expression modulation of genes impl...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Some studies indicate that obesity is associated with rheological disturbances. Because there are usually sex differences in the type of obesity we decided to evaluate rheological differences between male and female obese patients. We studied 18 morbidly obese men, mean age 43.66 +/- 11.32 years, mean body mass index ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-2010-1275
更新日期：2010-01-01 00:00:00
abstract：:We investigated relationships among body composition, blood rheology, and exercise performance in 14 rugbymen (19-31 yr, weight 65.8-109.2 kg, height 1.7-1.96 m, body mass index 21.7-33.1 kg/m2) who underwent a standardized submaximal exercise session on cycloergometer corresponding to 225 kJ over 30 min. The rheologi...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:The lipoprotein lipase deficient (LPL-/-) mice and high fat-diet (HFD) induced hypertriglyceridemic mice were used to investigate the effects of cardiotonic pill (CP) on RBC rheologic abnormalities. Mice were randomly divided into the following five groups: the control group; the untreated HFD group; the untreated LPL...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：INTRODUCTION:Laparoscopy is more beneficial than the conventional open technique, however the pneumoperitoneum created may have an ischemic side effect. OBJECTIVE:Our aim was to evaluate the protective effects of preconditioning during laparoscopic cholecystectomies (LC). METHODS:30 patients were randomized into 2 gr...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-170336
更新日期：2018-01-01 00:00:00
abstract：:In chronic respiratory insufficiency secondary erythrocytosis (SPC), causing pulmonary hypertension and dx ventricular insufficiency, is often noticed. An alternative therapy to phlebotomy for SPC is isovolemic large volume erythrocytapheresis performed with cell separator (CSE) in order to quickly remove a large volu...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Despite increasing advances in microvascular free tissue transfer, flap failures, most commonly resulting from thrombosis at the anastomotic vascular site, remain a significant concern. Although several experimental and clinical studies have been carried out, no consensus has been reached so far on the efficacy, dosag...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章,评审
doi：10.3233/CH-2009-1220
更新日期：2009-01-01 00:00:00
abstract：:The aim of the present study was to test the relationships between hemorheology and autonomic nervous system (ANS) activity in 23 sickle cell trait (SCT) carriers and 17 control subjects. Hemorheological parameters were assessed at rest. Nocturnal ANS activity was calculated from heart rate variability indices. Impair...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:We described a patient with symptomatic giant hepatic hemangioma (GHH) treated with laparoscopic guided percutaneous microwave ablation (MWA). A 58 years' old woman was referred to our hospital who presented with upper abdominal distension and appetite loss for more than 1 year. The medical history included untreated ...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-200922
更新日期：2020-10-13 00:00:00
abstract：:The effects of various aldehydes such as secondary products of peroxidized lipids and other aldehydes on rheological parameters and their relation with aging process were studied. Malondialdehyde (MDA) in different concentrations can increase significantly viscosity and plastic viscosity of erythrocytes suspended in p...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:The aim of this work was to evaluate a new automatic cone-plate viscometer (LBY-N6, PRECIL, Beijing, China) which was designed for clinical measurements of blood and plasma viscosities. Standard calibrating oils of viscosity varying from 1.85 to 20.5 mPas (conforming to ASTM Standard) were used to test the precision a...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：AIM:Detection of prostate cancer lesions using transrectal contrast enhanced ultrasound (CEUS) of the prostate utilizing quantitative perfusion analysis. METHOD:20 patients (mean age 63 years, 47-71) with biopsy proven prostate cancer underwent transrectal ultrasound (TRUS) prior to radical prostatectomy by 2 experien...
journal_title：Clinical hemorheology and microcirculation
pub_type： 杂志文章
doi：10.3233/CH-2012-1594
更新日期：2012-01-01 00:00:00
