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Showing 1 to 20 of 23 for “"Arterial occlusion"”.
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Mathematical Models of Major Arterial Occlusion
The occlusion of a major artery constitutes a serious health concern as it can restrict blood flow and oxygen transport to dependent tissue regions. Fortunately, the vasculature surrounding the occlusion has mechanisms by which it can adapt to try to restore and maintain adequate perfusion to these …
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Sex Differences in Collateral Remodeling Following Hindlimb Arterial Occlusion
… indicates a higher incidence of peripheral arterial occlusive disease and associated likelihood of critical limb ischemia in women, as well as worse prognosis and decreased survival post myocardial infarction. Therefore, understanding the possible differences in underlying vascular …
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The Effects of Different Cuff Widths on Arterial Occlusion in the Upper Body
… three cuff widths (5 cm, 10 cm, 12 cm) have on arterial occlusion pressure (AOP) in the arm. A secondary purpose was to determine if arm circumference, blood pressure, arm length, and sex should be accounted for when applying these cuff widths. Two hundred and forty-nine participants visited the …
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The Impacts of Arterial Occlusion, Sex, and Exercise on Arteriogenesis and Functional Vasodilation
… frequent clinical presentation of peripheral arterial occlusive disease (PAOD) is intermittent claudication, which may be caused by impaired vasodilation. Patients demonstrate both local and systemic impairments in vasodilation, but as the collateral circulation is the primary site of …
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Major Collateral Vessels Develop from Pre-existing Small Arteries through RAC2/NOX2 Independent Mechanisms
… vessels that develop in response to femoral arterial occlusion in the pig, rat, and mouse hindlimbs for comparison to humans. Pre-existent small named arteries enlarged ~2-3-fold to become the major collateral vessels in each species, these major collaterals displayed characteristics similar …
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Experimental porcine models of retinal ischemia
… resulting from e.g. diabetes, vein thrombosis or arterial occlusion, is one of the major causes of visual impairment and blindness. Although new methods of treatment are being developed, there is still a need for more effective pharmacological forms of treatment. The aim of this work was to …
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Femoro-distal bypass surgery at Groote Schuur Hospital: a 4-year retrospective study
… years by international consensus and objective arterial pressure measurements, has been recognized by surgeons since the dawn of reconstructive vascular surgery fifty years ago. Patients present with increasingly severe and intolerable ischemic rest pain involving a single toe or the entire …
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ΣΥΓΚΡΙΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΑΟΡΤΟΓΡΑΦΙΑΣ ΚΑΙ ΤΗΣ ΡΑΔΙΟΙΣΟΤΟΠΙΚΗΣ ΥΠΟΛΟΓΙΣΤΙΚΗΣ ΑΓΓΕΙΟΓΡΑΦΙΑΣ (Ρ.Υ.Α.) ΣΤΗΝ ΑΟΡΤΟΛΑΓΟΝΙΟ ΝΟΣΟ
… ALL CASES, IN SHOWING THE SITE OF COMPLETE ARTERIAL OCCLUSION AND PARTICULARLY WHEN IS LOCATED IN THE ILIAC ARTERIES. THE AORTOGRAPHY IS SUPERIOR IN SHOWING THE TORTUOSITY AND THE DEGREE OF ARTERIAL STENOSIS, WHEREAS THE 1ST PASS RADIONUCLIDE COMPUTER ASSISTED ANGIOGRAPHY IS BETTER IN …
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Acute Cardiovascular Response to Low-Load Unilateral, Bilateral, and Alternating Resistance Exercise with Blood Flow Restriction in the Lower Body
… While applying BFR relative to an individual’s arterial occlusion pressure (AOP) and exercising at low-loads seems to produce a comparable cardiovascular response to traditional moderate or high-load training, it is beneficial to identify modifications for reducing the cardiovascular response to …
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SERUM ANTI-PHOSPHORYLCHOLINE AND ANTI-CARDIOLIPIN CONCENTRATIONS FOLLOWING PERIODONTAL SCALING AND ROOT PLANING
… in life eventually leading to large plaques and arterial occlusion. Two key components of this process are the immune system and lipids; in particular, LDL which accumulates within the arterial walls and macrophages which recognize and engulf oxidized-LDL (oxLDL) to form foam cells. Knowing that …
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Effect of Fenoldopam on Renal Function in Normal Dogs Following Nephrotomy
… temperature, heart rate, respiration, direct arterial blood pressure, and urine volume were recorded during anesthesia. Renal function was assessed by measuring SCr, BUN, and GFR based on quantitative renal scintigraphy using 99mTc-DTPA at 1, 21, and 42 days after surgery. Results: There was …
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Photoplethysmography for non-invasive measurement of bone hemodynamic responses to changes in external pressure
… Validation experiments including arterial occlusion, cold exposure, skin occlusion and nitroglycerin exposure were performed. Single-limb pressure chamber experiments were performed over a range of pressures from -50 to +50 mmHg to characterize the responses to changes in external …
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Assessment of Peripheral and Central Hemodynamics During Leg Exercise With "Blood Flow Restriction"
… “BFR”, cuff inflation to 40% of an individual’s arterial occlusion pressure (AOP; cuff pressure which fully occludes limb arterial flow at rest) is assumed to reduce exercising muscle blood flow. However, no study has validated this assumption. Therefore, we sought to determine whether pneumatic …
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A Comparison of the Acute Muscular Response and Long-term Adaptation to Resistance Training Using Traditional High Loads or Very Low Loads with Different Degrees of Blood Flow Restriction in the Lower Body
… Conditions labeled (% One-repetition maximum/% arterial occlusion pressure). Acute: Trained participants (12 males, 11 females) completed knee extension exercise (4 sets to failure capped at 90 repetitions) with each condition. Muscle thickness and torque were assessed before (Pre), after …
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Does Blood Flow Restriction Applied Post High-Load Exercise Augment Skeletal Muscle Growth Following Eight Weeks of Training?
… folloby 3 min of blood flow restriction (70% arterial occlusion). Both conditions completed the same volume (3687 vs. 3638 kg) of exercise. There was an interaction (p=0.031) demonstrating an attenuation of muscle growth at the 60% site in the experimental [pre: 3.1 (0.6), post: 3.1 (0.7) cm] …
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Acute and Chronic Vascular Responses to Blood Flow Restriction in the Upper Body
… using either 15%1RM with no BFR (15/00), 40% of arterial occlusion pressure (AOP) (15/40), or 80%AOP (15/80), or 70%1RM (70/00). Systolic and diastolic blood pressure (SBP, DBP) and blood flow (BF) were measured in the arms during four sets performed to voluntary failure. BF increased in 15/00 …
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Effects of Aerobic Capacity Phenotype on Adaptive Responses to Ischemic Stress
… and metabolic responses to peripheral artery occlusion. The overall goal of this dissertation was to determine the influence of intrinsic exercise capacity on the vascular and metabolic adaptive responses to ischemic stress. This study tested the hypothesis that the LCR would show altered …
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Vascular Reactivity in Newly-Formed and Mature Arterialized Collateral Capillaries
<p>Peripheral arterial occlusive disease (PAOD) is a globally-prevalent cardiovascular disease in which atherosclerotic plaques narrow arterial lumen diameters and restrict blood flow to downstream tissues. The impact of these occlusions can be mitigated by collateral vessels that connect parallel …
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Hyperglycaemia, insulin and acute ischaemic stroke
… GKI may be harmful in patients with persistent arterial occlusion. • Over the 48hour monitoring period 75% of patients developed Hyperglycaemia. Stroke severity was not predictive of admission hyperglycaemia whereas glycosylated haemoglobin was (OR 2.97; 95%CI 1.84-4.78; p<0.001). 50% of …
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Full Field Laser Perfusion Imaging and Post Occlusive Reactive Hyperaemia in the Skin Microcirculation: A Biomarker of Cardiovascular Disease Risk?
… develop a test of PORH (following 5 minutes of arterial occlusion) using FLPI and secondly to compare this test with the EndoPAT device, the only food and drug administration (FDA) validated assessment. <br/><br/>FLPI was used to assess the reproducibility of changes in forearm skin blood flow …
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