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Carotid Artery Stenosis - DOAJ

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Last Updated: 03 January 2023

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Are systolic velocity duplex metrics negatively affected by flow aliasing in areas of critical internal carotid artery stenosis

Duplex scanning is a cost-effective noninvasive screening method for the detection of carotid bifurcation disease. PSV ratios of 70% and ICA/common carotid artery PSV ratios are established metrics that reveal 70% stenosis in 70% of ICA stenosis. Flow aliasing is a potential drawback of using dramatically increasing systolic velocity measurements in areas of critical arterial stenosis. We review ICA and CCA end diastolic velocity metrics in predicting severe ICA stenosis and determining the presence of an aliasing artifact in a population of patients with questionable ICA stenosis. Methods: A comparison was made between continuing patients and procedural angiography. PSV and EDV were recorded as evidence of the flow aliasing of ICA waveforms. In 105 arteries, critical angiographic stenosis was present in 256 carotid bifurcation duplex studies, according to the study. Conclusion: The ICA/CCA diastolic ratios can accurately determine 70% or higher ICA stenosis.

Source link: https://doi.org/10.1080/20009666.2019.1694386


Carotid Artery Stenosis

Stroke is one of the world's leading causes of death, and carotid artery stenosis is a leading cause of ischaemic strokes. paraphrased artery stenting is common in symptomatic patients. Patients who are symptomatic can be aided in the appropriate medical therapy, CEA, or CAS.

Source link: https://doi.org/10.15420/ver.2018.14.2


Carotid artery stenosis and coronary artery disease coincidence

External artery stenosis is imaginable in a person at a high risk of coronary artery plaque formation, as shown by coronary artery plaque formation. Carotid artery stenosis is associated with more severe stenosis in coronary artery disease and carotid artery stenosis, although some similar findings were published in coronary artery disease and carotid artery stenosis, although coronary artery stenosis is not related to coronary artery disease and carotid artery stenosis is characterized with more severe stenosis A stenosis measurement procedure for carotid artery stenosis detection may not be as effective as coronary artery stenosis diagnosis. Several new and non-invasive diagnostic techniques for carotid artery stenosis management may be developed for carotid artery stenosis detection that differs according to patient-to-patient variations.

Source link: https://doi.org/10.17463/RCM.2015.02.010


Leukocyte Count Predicts Carotid Artery Stenosis in Men with Ischemic Stroke: Sub Study of the Preventive Antibiotics in Stroke Study (PASS)

paraphrased artery stenosis, according to study, gender-dependent differences in the use of inflammatory markers for risk stratification of stroke patients with internal carotid artery stenosis. We investigated whether leukocytes and thrombocytes were related to acute stroke at u226 55%, as well as sex-dependent. PASS is a random controlled trial that randomized between four days of preventive ceftriaxone intravenously or standard stroke care alone. Methods : Patients in PASS were tested for the predictive value of leukocytes and thrombocytes for ICAS. Female patients had a mean of 8. 55 %u00d7 10 9 /L for leukocytes and 259 for thrombocytes, with 259 a 0 9 /L for thrombocytes. According to a multivariate logistic regression study, leukocytes were independently associated with ICAS u2265 percent in male patients but not in female patients. Conclusions: We find that after acute stroke, the blood leukocyte count independently predicts ICAS in men, but not in women.

Source link: https://doi.org/10.3390/jcm11247286


Hypertriglyceridemia and Atherosclerotic Carotid Artery Stenosis

paraphrased plaque formation and carotid plaque instability, according to statins, they are well known to prevent carotid plaque formation and increase carotid plaque fragility and improve carotid plaque stability. Statin therapy has also been shown to reduce cerebrovascular events in patients with carotid artery stenosis and to improve clinical outcomes in patients undergoing revascularization procedures. On the other hand, there have been no randomized controlled trials that showed that a combination of non-statin lipid-lowering agents with statins has additional beneficial results over statin monotherapy to minimize cerebrovascular events and stenosis progression in patients with carotid artery stenosis. paraphrased artery stenosis and hypertriglyceridemia are also investigated by the authors.

Source link: https://doi.org/10.3390/ijms232416224


Identification of Metabolomics Biomarkers in Extracranial Carotid Artery Stenosis

It's still a challenge to determine carotid artery stenosis by biochemical analysis. Blood samples were collected 14 days after stroke onset with no apparent disease. Hypertension, diabetes, smoking, and alcohol intake were more common, but diastolic blood pressure, HDL-C, LDL-C, and cholesterol were lower in CAS patients than controls, requiring intensive medical care for CAS. PLS-DA and PCA did not have a definite difference between control and CAS patients, but there was no evidence of a consistent difference between them. The present research shows that metabolomics analyses may aid in differentiating between controls and CAS patients and monitoring CAS progression.

Source link: https://doi.org/10.3390/cells11193022


Evaluation of asymptomatic carotid artery stenosis prior to coronary artery bypass grafting - A prospective observational study in North Indian population

Historically: Carotid artery stenosis is a common risk factor for peri-operative neurological difficulties in patients following coronary artery bypass graft grafting. This research was conducted to investigate the prevalence of asymptomatic carotid artery disease in patients undergoing CABG and to determine predictors of significant carotid stenosis in them. Conclusions: Carotid stenosis was present in 75% of the study population, with 11. 6% experiencing unilateral and 64% having bilateral stenosis in 61 percent. Significant CAS in the study population were shown by multivariate analysis of all the predictor variables in a regression model, with significant LM disease and coronary artery calcification being the only independent predictors of significant CAS. Conclusion: The presence of significant carotid vessel stenosis in patients undergoing CABG in the Indian population has a greater link to the coronary artery disease prevalence than the coronary atheroma load.

Source link: https://doi.org/10.4103/aian.aian_913_21


Early Diagnosis of Intracranial Internal Carotid Artery Stenosis Using Extracranial Hemodynamic Indices from Carotid Doppler Ultrasound

The results of the blood flowu2019s velocity from a distance can be complicated by arterial stenosis, according to clinical reports. We therefore quantitatively investigated the effects of IICAS on extracranial internal carotid artery flow velocity waveforms in order to establish meaningful hemodynamic indices for IICAS diagnoses, based on a patient-specific one-dimensional hemodynamic model. In addition, flow waveform patterns were evaluated using the first harmonic amplitude and the sum of the amplitudes of the 1st–u201320th order harmonics, which is defined as the ratio between the first harmonic amplitude and the sum of the amplitudes of the 1st-u201320th order harmonics. The simulation results showed that IICAS dramatically increased the FHR and reduced the PSV and EDV in the same patient. The average PSV, EDV, and RI were lower in the stenosis group than in the control group, according to statistical results; however, there were no significant differences between the two groups, except for the right ICA's PSV.

Source link: https://doi.org/10.3390/bioengineering9090422


Reversed ophthalmic artery flow in patients with acute ischemic stroke and ipsilateral significant extracranial carotid artery stenosis, and its effect in functional outcome

Abstract Background Cerebral hemodynamics and collateral circulation play an important role in determining stroke results, although the role of primary collateral is well known, secondary collaterals, such as ophthalmic artery flow, are also unclear. Patients were divided into two groups, one with forward and the other with reversed flow, according to ophthalmic artery flow measurements. In the ROAF group, MRS was higher in the ROAF group than the forward ophthalmic artery flow group, but there was no statistical difference; in addition, the gap between MRS after 3 months and discharge was significant in the ROAF group.

Source link: https://doi.org/10.1186/s41983-022-00453-1


Transcranial doppler findings in aphasic patients with carotid artery stenosis or occlusions

However, no studies have been published on the epidemiology of steno-occlusive diseases in patients with aphasia. Transcranial Doppler, according to Dr. Convertis, is a simple noninvasive method of intracranial circulation. We wanted to investigate the role of TCD in the detection of abnormalities in vessels supplying the brain in acute ischemic stroke in aphasics. Between January 2007 and September 2008, 166 patients with the first acute ischaemic stroke and aphasia were selected. In the first 48 hours of onset, they underwent Color Duplex Sonography and Transcranial Color Duplex Sonography examinations. In 73% of cases, the lesions were found at classical language centers. MCA or terminal ICA C1 stenosis/occlusions; 2 101 pts 59% with no changes; and MCA/terminal stenosis/occlusions, respectively, 1 5 pts 51. 9 percent with no changes in the intracranial hemodynamics; 2 101 pts 59% with hypote permeability of the L and/or R MCA; and 60 percent with no changes; and MCA grafts Broca's aphasia was the most common aphasic disease in the acute phase of ischemic stroke in the MCA's territory, according to our report. The destroyed lesions of most aphasics had been melted with classical language functional areas, but other locations that had been destroyed could also produce aphasia. In the extracranial carotid diseases that cause post-stroke aphasia, TCD was a useful non-invasive test for the diagnosis of intracranial cerebral vascular disease and an intracranial hemodynamic abnormality.

Source link: https://doi.org/10.37897/RJN.2009.2.3

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions