نتایج جستجو برای: brachial artery diameter
تعداد نتایج: 327377 فیلتر نتایج به سال:
One case of brachial artery occlusion and no cases axillary occlusions have been reported in the literature. Here we describe a 50 years old female who presented for diagnostic coronary angiogram after having positive stress test developed brachial, radial thrombosis left transradial access.
Reduced reactive hyperemia may explain impaired flow‐mediated dilation after on‐pump cardiac surgery
In previous studies, Flow Mediated Dilation (FMD) was used to study the effect of cardiac surgery on endothelial function. This study investigated the effect of on-pump cardiac surgery on FMD and reactive hyperemia. The FMD-response and reactive hyperemia were measured in 25 patients the morning before- and the first morning after cardiac surgery. Brachial artery diameter and blood flow were me...
OBJECTIVES This study examined whether endothelial dysfunction in the brachial artery might be associated with late in-stent restenosis (ISR) after percutaneous coronary intervention (PCI). BACKGROUND Simple and noninvasive identification of late ISR might help to select patients who require further angiographic evaluation. METHODS Endothelium-dependent flow-mediated dilation (FMD) of the b...
We hypothesized that exposure to prolonged recumbency (bedrest), and thus reductions of intravascular pressure gradients, increases pressure distension in arteries/arterioles in the legs. Ten subjects underwent 5 wk of horizontal bedrest. Pressure distension was investigated in arteries and arterioles before and after the bedrest, with the subject seated or supine in a hyperbaric chamber with e...
Flow-mediated dilation (FMD) is a noninvasive technique used to measure conduit artery vascular function. Limited information is available on normative FMD values in healthy children and adolescents. The objective of this study was to assess relationships between age and sex with FMD across childhood and adolescence. Nine hundred and seventy-eight asymptomatic children (12 ± 3 yr, range 6-18 yr...
The advocated SphygmoCor procedure uses a radial-to-aorta transfer function with calibration on brachial instead of radial artery pressure to assess the central pulse pressure. We compared these values with carotid artery pulse pressures obtained from a validated calibration method, assuming mean minus diastolic blood pressure constant throughout the large artery tree. From 44 healthy subjects ...
Flow-mediated dilation (FMD) measures the ability of an artery to relax in response to increases in blood velocity. FMD, primarily of the brachial artery, has been used as a noninvasive method of assessing vascular health. The purpose of this study was to assess FMD in the lower legs of humans. Six healthy subjects (27 PlusMinus; 6 yrs) were tested. Doppler ultrasound images of the posterior ti...
Systemic and arterial hemodynamic effects of the new 20 mg tablet of nifedipine were studied in seven patients with mild-to-moderate essential hypertension. Hemodynamics of the forearm arterial circulation were investigated using a new pulsed Doppler system, enabling the simultaneous determination of the brachial artery diameter and the arterial blood flow velocity. After nifedipine administrat...
Variations in the arterial pattern of the upper limb are abundant and diverse and have been observed frequently either in cadaver dissection or in clinical practice and reports. In the most of these reports, radial or ulnar arteries were commonly involved, which can be damaged during surgical procedures. This report presents a case of a rare variation in arising branches of brachial artery. Dur...
Importance of Pressure Pulse Amplification in the Association of Resting Heart Rate and Arterial Stiffness To the Editor: The study by Whelton et al1 shows that resting heart rate is independently associated with arterial stiffness. Arterial stiffness was quantified as distensibility and determined from ultrasound measurements of carotid diameter and MRI measurements of aortic diameter. Distens...
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