scholarly journals Reactivity to low-flow as a potential determinant for brachial artery flow-mediated vasodilatation

2016 ◽  
Vol 4 (12) ◽  
pp. e12808 ◽  
Author(s):  
Kunihiko Aizawa ◽  
Salim Elyas ◽  
Damilola D. Adingupu ◽  
Francesco Casanova ◽  
Kim M. Gooding ◽  
...  
Keyword(s):  
Brachial Artery ◽  
Low Flow ◽  
Artery Flow ◽  
Potential Determinant

P3.10 REACTIVITY TO LOW-FLOW IN THE BRACHIAL ARTERY: A POTENTIAL DETERMINANT FOR FLOW-MEDIATED DILATORY RESPONSE

2014 ◽  
Vol 8 (4) ◽  
pp. 138
Author(s):  
K. Aizawa ◽  
S. Elyas ◽  
D. Adingpu ◽  
A. Shore ◽  
D. Strain ◽  
...  
Keyword(s):  
Brachial Artery ◽  
Low Flow ◽  
Dilatory Response ◽  
Potential Determinant

Diameter of inflow as a predictor of radiocephalic fistula flow

2018 ◽  
Vol 19 (6) ◽  
pp. 548-554 ◽  
Author(s):  
Lukas K Kairaitis ◽  
James P Collett ◽  
Jan Swinnen
Keyword(s):  
Arteriovenous Fistula ◽  
Doppler Ultrasound ◽  
Brachial Artery ◽  
Indicator Dilution ◽  
Low Flow ◽  
Optimal Method ◽  
Luminal Diameter ◽  
Minimal Luminal Diameter ◽  
Artery Flow ◽  
The Relationship

Introduction: The optimal method for vascular access surveillance is largely unknown. A previous case–control study suggested a simplified anatomical measure obtained by Doppler ultrasound—the narrowest segment of the circuit or “minimal luminal diameter” may identify patients with a dysfunctional radiocephalic arteriovenous fistula. The relationship between minimal luminal diameter and access flow (Qa) in the radiocephalic arteriovenous fistula has not previously been studied. Methods: Patients undergoing Doppler ultrasound of a radiocephalic arteriovenous fistula over an 8-month period were identified retrospectively. Minimal luminal diameter was identified and demographic and clinical data were collected. Qa was estimated by Doppler estimation of brachial artery flow. The relationship between minimal luminal diameter and Qa was examined by correlation and using different levels of minimal luminal diameter as a simplified measure to detect or exclude low Qa (<600 mL/min). Results: A total of 81 Doppler ultrasound scans were performed. In all, 26 scans demonstrated brachial artery flow <600 mL/min. Simple logistic regression indicated a weak statistical relationship between the minimal luminal diameter and Qa (R2 = 0.27, p < 0.01). Minimal luminal diameter performed poorly as a marker of low Qa with low specificity, however, showed high negative predictive value for ruling out low Qa at a minimal luminal diameter of 3.2 mm or higher (94%). Qa estimated by brachial artery flow correlated well with Qa estimated by indicator dilution (R2 = 0.83, p < 0.01) without significant mean difference or proportional bias. Conclusion: Minimal luminal diameter correlates weakly with Qa. Low minimal luminal diameter values should not be used in isolation to determine low Qa for a radiocephalic arteriovenous fistula. Conversely, minimal luminal diameter >3.2 mm largely excludes a low-flow radiocephalic arteriovenous fistula in this cohort. Brachial artery flow is a reasonable measure of Qa in comparison with indicator dilution.

scholarly journals Predictive value of brachial artery flow-mediated dilation on coronary artery abnormality in acute stage of Kawasaki disease

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yizhou Wen ◽  
Xianmin Wang ◽  
Yonghong Guo ◽  
Mei Jin ◽  
Jimei Xi ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Kawasaki Disease ◽  
Brachial Artery ◽  
Characteristic Curve ◽  
Coronary Aneurysm ◽  
Acute Stage ◽  
Flow Mediated Dilation ◽  
Strong Negative Correlation ◽  
Coronary Artery Abnormality ◽  
Artery Flow

AbstractCoronary artery abnormalities (CAAs) are a severe complication of Kawasaki disease (KD) that may lead to cardiovascular events. Given the evidence that brachial artery flow-mediated dilation (FMD) decreases in children after the onset of KD, we hypothesized that it could be an early marker of CAA development in the acute stage and investigated its relationship with variation in the coronary artery diameter. A total of 326 sex- and age-matched children were enrolled, including 120 with KD, 109 febrile children and 97 healthy controls. In this study, FMD was significantly decreased in the KD group compared with the febrile and healthy groups. FMD was lower in the CAA group than in the no coronary artery abnormality group. The comparison of FMD showed an obvious difference among the CAA subgroups. The FMD in the coronary aneurysm (CA) group showed a strong negative correlation with the pretreatment maximum coronary artery Z-score (preZmax). While preZmax was 2.5, the receiver operating characteristic curve indicated an optimal cutoff point of 3.44% for FMD. FMD ≤ 3.44% could be considered as a signal of coronary lesions in acute stage of KD.

scholarly journals Geographic Origin as a Determinant of Carotid Artery Intima-Media Thickness and Brachial Artery Flow-Mediated Dilation

2005 ◽  
Vol 25 (2) ◽  
pp. 392-398 ◽  
Author(s):  
Markus Juonala ◽  
Jorma S.A. Viikari ◽  
Mika Kähönen ◽  
Leena Taittonen ◽  
Tapani Rönnemaa ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Brachial Artery ◽  
Geographic Origin ◽  
Intima Media Thickness ◽  
Flow Mediated Dilation ◽  
Media Thickness ◽  
Artery Flow

scholarly journals 1065-165 Brachial artery flow-mediated vasodilation correlates with exercise capacity in women

2004 ◽  
Vol 43 (5) ◽  
pp. A467
Author(s):  
Ayan R Patel ◽  
Jeffrey T Kuvin ◽  
Kathleen A Sliney ◽  
William M Rand ◽  
Natesa G Pandian ◽  
...  
Keyword(s):  
Exercise Capacity ◽  
Brachial Artery ◽  
Artery Flow ◽  
Flow Mediated Vasodilation

The effect of oral antioxidants on brachial artery flow-mediated dilation following 5 and 10 min of ischemia

2009 ◽  
Vol 107 (4) ◽  
pp. 445-453 ◽  
Author(s):  
Ryan A. Harris ◽  
Steven K. Nishiyama ◽  
D. Walter Wray ◽  
Vince Tedjasaputra ◽  
Damian M. Bailey ◽  
...  
Keyword(s):  
Brachial Artery ◽  
Flow Mediated Dilation ◽  
Artery Flow

Abstract 3785: Red Wine Consumption Increases Circulating Endothelial Progenitor Cells and Improves Endothelial Function in Obese Type II Diabetics

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Catherine L Seck ◽  
Jochen Mueller-Ehmsen ◽  
Gerhard Kreuter ◽  
Karl-Heinz Hauser ◽  
Daniela Braun ◽  
...  
Keyword(s):  
Brachial Artery ◽  
Type Ii Diabetes ◽  
Red Wine ◽  
Obese Patients ◽  
Type Ii ◽  
Drinking Period ◽  
Wine Consumption ◽  
Cd34 Cells ◽  
Flow Mediated Dilatation ◽  
Artery Flow

Objective: Cardiovascular risk factors are associated with decreased levels of circulating progenitor cells (CPC). The aim of this study was to determine whether the moderate consumption of red wine leads to an increase of CPCs. Methods: CD34 positive and CD133/CD34 as well as CD117/CD34 double positive cells were measured by FACS analysis in peripheral blood of 15 obese patients suffering from type II diabetes with stable oral drug treatment (67.3 ± 2.3 years, BMI 32.3 ± 0.5 kg/ m 2 ) prior to and after a six week period of drinking two units (300 ml) of red wine (Lemberger Classic, Württemberg, Germany). The drinking period was anticipated by a four week fasting period, in which no alcohol consumption was allowed at all. In addition, brachial artery flow mediated dilatation was determined prior to and after the drinking period. Results: The six week drinking period had no effect on BMI, systolic and diastolic blood pressure, blood glucose levels, HbA1c-values and liver enzymes. There was a non-significant drop in LDL cholesterol, but no change in HDL cholesterol. Concerning CPCs, the following alterations were observed: CD34+ cells increased from 171 ± 22 to 354 ± 28 per million leucocytes. Within the CD34+ cells, the percentage of CD133+ cells increased from 30.8 ± 5.7 % to 53.1 ± 3.3 %, and the percentage of CD117+ cells increased from 38.1 ± 5.8 % to 57.5 ± 4.6 % (p<0.05 for all parameters). Brachial artery flow mediated dilatation increased from 5.57 ± 0.74 % to 11.13 ± 1.34 % (p<0.05) in response to six weeks of red wine consumption. Nitroglycerin mediated brachial artery dilatation increased from 7.45 ± 1.09 % to 11.31 ± 1.09 % (p<0.05). Conclusion: In obese patients suffering from type II diabetes, moderate consumption of red wine leads to a significant improvement of circulating progenitor cell count and endothelial function. No adverse effects of wine consumption on metabolic and cardiovascular parameters were observed.

Reliability of low-flow vasoreactivity in the brachial artery of adolescents

2018 ◽  
Vol 47 (3) ◽  
pp. 133-138
Author(s):  
Sascha H. Kranen ◽  
Bert Bond ◽  
Craig A. Williams ◽  
Alan R. Barker
Keyword(s):  
Brachial Artery ◽  
Low Flow
Sign in / Sign up

Export Citation Format

Share Document