Articles tagged with Carotid Artery
Researchers in China used AI-enhanced point-of-care ultrasound to train general practitioners in detecting carotid artery plaque. They found that the GPs accurately identified plaque 87% of the time and cleared patients correctly when no plaque existed.
Researchers analyzed carotid plaque samples from 75 Chinese and 111 US patients, revealing distinct differences in plaque morphology, size, and composition. The study highlights the importance of understanding population-specific variations to develop personalized treatment approaches for cerebrovascular events.
Researchers found that carotid artery plaques can undergo changes over time, becoming more complex and increasing the risk of internal bleeding. This study emphasizes the importance of ongoing plaque monitoring and proactive risk factor management to prevent stroke.
A multicenter study found that radiologically unstable plaque, particularly intraplaque hemorrhage, significantly increases the risk of ischemic stroke and ocular symptoms in patients with symptomatic mild carotid stenosis. Surgical intervention, such as carotid endarterectomy, may be a protective factor for these patients.
Researchers at UCL developed a new scoring system, CAR, to identify patients with narrowed carotid arteries who can be effectively treated with optimised medical therapy. The study found low rates of recurrent strokes and heart attacks among patients treated with medication alone.
A significant proportion of patients who suffer a stroke due to carotid artery narrowing can be treated with medication only. Researchers found that up to 75% of patients may not need surgery, eliminating the risk of another stroke and saving healthcare costs.
Swedish researchers have identified 20 genetic variants associated with an increased risk of atherosclerosis, a leading cause of cardiovascular disease. The study used advanced imaging techniques to examine millions of genetic variants, providing new insights into the disease process and potential ways to prevent it.
A predictive model developed by Ochsner Health researchers uses data-driven insights to determine whether urgent carotid-intervention patients will regain functional independence. The model has been shown to have a 93% accuracy rate and can help physicians tailor treatment plans and optimize intervention timing.
A study by Dr. Hernan Bazan at Ochsner Health reveals that higher frailty scores are directly associated with increased rates of stroke, death, and myocardial infarction within 30 days of the carotid procedure. The Hospital Frailty Risk Index provides a systematic tool for assessing frailty risk across large populations.
A study published in JACC demonstrates that subclinical atherosclerosis burden and progression independently predict death from any cause. Asymptomatic individuals with high carotid plaque burden and coronary artery calcification are at increased risk of mortality.
A new study published in the Journal of the American College of Cardiology found that subclinical atherosclerosis is independently associated with the risk of dying from any cause. The study also showed that monitoring the progression of atherosclerosis can improve the prediction and prevention of death from any cause.
A recent study found that a stroke or combined with a neck artery tear significantly increases the risk of heart attack within a year. The researchers analyzed health data from over 800,000 adults and discovered that carotid or vertebral artery dissections without a stroke do not raise heart attack risk.
A new study found that arterial stiffness is a novel cause of premature heart damage among adolescents, leading to increased blood pressure and insulin resistance. The study discovered that adolescents with high arterial stiffness had a 23-27% increased risk of structural heart damage.
Researchers found that exercise-induced heart rate can cause plaque in moderately to severely blocked carotid arteries to migrate and halt blood flow to the brain. This can lead to ischemic stroke. The authors recommend checking arterial health regularly for people doing intense workouts.
A study found that patients with transient ischemic attack (TIA) who received incomplete neurovascular imaging were at higher odds of experiencing a stroke within 90 days. The research, published in the American Journal of Roentgenology, used Medicare claims data to analyze TIA emergency department encounters.
A cohort study of 196 people treated with tecovirimat found that HIV status did not impact treatment outcomes. Only 22% of participants experienced nonsevere adverse effects, and 4 serious adverse events occurred, with 3 being persons with HIV. The findings contradict previous uncertainty about HIV's role in mpox acquisition.
Researchers found that individuals with persistent asthma have higher levels of inflammation and artery plaque, which may increase heart attack or stroke risk. The study also highlights the importance of addressing risk factors for cardiovascular disease in people with persistent asthma.
A new study from Mount Sinai Hospital finds a strong association between age-related macular degeneration and severe forms of heart disease, including heart failure, heart attacks, and stroke. The study highlights the importance of increased screening for eye disorders to diagnose undetected heart disease.
Aneurysms occur when blood vessel thins and expands, leading to increased stress on walls and rising rupture probability. The new model uses computed tomography scans to reconstruct geometry and blood flow patterns.
A new study published in the Journal of the American Heart Association suggests that smartphone video motion analysis can accurately detect narrowed neck arteries, which are a significant risk factor for stroke. The algorithm achieved an impressive 87% accuracy rate in detecting stenosis in participants with carotid artery disease.
A new study has identified the genes that become active in carotid arteries when plaque rupture causes a stroke. The researchers sequenced the RNAs in plaques from patients who had experienced a stroke within two to five days, revealing increased inflammation and loss of protective cap.
A study at Tulane University found that recently formed stroke plaques contain messenger RNA that causes inflammation and degrades a protective cap, leading to rupture. This discovery could lead to new tools to stop strokes from happening and develop new drugs or diagnostics to prevent heart attacks and strokes.
A new study published in the Journal of the American College of Cardiology suggests that carotid artery stenting can be just as effective as surgery in preventing long-term stroke and improving durability. The research recommends expanding insurance coverage for this minimally invasive procedure, which can improve blood flow to the brain.
A study found that patients with a specific form of age-related macular degeneration are at significant risk for cardiovascular disease and stroke. Researchers discovered a strong association between the disorder's subretinal drusenoid deposits and high-risk vascular diseases.
Researchers developed a method combining low-power lasers with ultrasound to safely and efficiently remove arterial plaque. The technique reduces the risk of complications and improves the efficiency of plaque removal compared to traditional methods.
Scientists use advanced measurement methods to study carotid artery stenosis, discovering significant gaps between their findings and clinical methods. They propose improvements for surgical treatment technology and future medical devices.
A study by Kobe University researchers has illuminated the characteristics of Myeloid immune cells in coronary plaque, a major contributor to acute coronary syndrome. The findings suggest that macrophages and monocytes accumulate in the plaques of patients with acute coronary syndrome, leading to increased inflammation.
A new study examines the effect of rapid infusion of sodium bicarbonate on gas exchange and coronary and cerebral perfusion in the immediate post-resuscitation phase. The study found that rapid administration led to a significant rise in myocardial and cerebral perfusion, as well as higher levels of exhaled carbon dioxide.
A new 3D matrix ultrasound method has been developed to assess cardiovascular risk in healthy individuals, offering a reliable and accurate alternative to traditional methods. The technique shows promise for personalized prevention and treatment strategies by detecting and quantifying an individual's accumulated cardiovascular damage.
A study found that using two cannulas to place newborns in respiratory failure on life-sustaining ECMO increases mortality rates. The safest path is a single cannula in the right internal jugular, which can remove oxygen-poor blood and add oxygen before returning it to the baby.
Researchers have discovered that a small protein called glucagon-like peptide-1 (GLP-1) couples the body's control of blood sugar and blood pressure. This finding could lead to new treatment strategies for patients with hypertension and/or diabetes.
Researchers from China use digitalized flow rates to study the effect of exercise on plaque formation in carotid arteries, which carry blood to the head and neck. The study investigates how geometrical features of the arteries affect plaque formation and finds that exercising decreases reversed flow volume in older age groups.
The ACST-2 trial found that carotid artery surgery and stenting have comparable long-term effects on fatal or disabling stroke in asymptomatic patients with severe carotid artery stenosis. Both procedures are associated with a 1% risk of disabling stroke or death, with the annual risk decreasing to 0.5% after five years.
Researchers found that widely used SRU Consensus Criteria overestimated ICA stenosis severity. New criteria propose increasing peak systolic velocity thresholds and requiring higher PSV ratios for accurate diagnosis.
A study published in Experimental Physiology found increased stiffness of arteries in young adults after COVID-19, potentially leading to cardiovascular complications. The researchers are following the participants for 6 months to observe any improvements or long-term effects.
The USPSTF advises against routine screening for asymptomatic carotid artery stenosis, as it poses a relatively small risk of stroke. This recommendation is consistent with the task force's previous 2014 recommendation.
Patients with COVID-19 often suffer from severe pneumonia despite low arterial blood oxygen levels, contradicting typical symptoms of hypoxemia. Researchers suggest that SARS-CoV-2 infection in the carotid body may alter its ability to detect oxygen levels, leading to silent hypoxemia.
A study found a significant association between carotid artery calcification observed in oral panoramic radiographs and chronic coronary artery disease. The researchers also discovered that patients with severe carotid artery calcification had a significantly higher risk of death from cardiovascular diseases.
Researchers found that 40% of asymptomatic people between 40-50 years old accumulated fatty plaques in their arteries at a rapid rate. The study shows a direct link between classical cardiovascular risk factors and disease progression.
The use of robots in neuroendovascular procedures could significantly change acute stroke treatment. The advanced technology provides precise control over microcatheters and microwires, reducing radiation exposure for surgeons.
Researchers have found that adding cilostazol, an antiplatelet medication used to treat leg pain, can prevent re-blockage of carotid artery stents within two years. The study showed a significant reduction in in-stent restenosis and cardiovascular events compared to other antiplatelet medications.
A new study published in International Journal of Epidemiology found a strong association between air pollution and carotid intima-media thickness (CIMT) in peri-urban South India. People exposed to higher levels of fine particles had a higher CIMT index, indicating a higher risk of cardiovascular diseases.
A new study associates self-silencing with greater carotid plaque buildup, which could lead to a stroke and other cardiovascular problems. Women who do not express their feelings are at increased risk of cardiovascular issues.
A new imaging technique called volumetric multi-spectral optoacoustic tomography (vMSOT) offers advantages over conventional methods for assessing cardiovascular disease risk. vMSOT provides detailed information about the makeup of plaque in carotid arteries, associated with vulnerability to rupture and stroke.
A new study using carotid artery MRI shows that measurements of wall thickness can improve cardiovascular disease risk assessment. The technique offers a more accurate predictor of cardiovascular events than ultrasound-based intima-media thickness (IMT) tests, especially for stroke risk.
Researchers at UCalgary's Alberta Children's Hospital Research Institute and Hotchkiss Brain Institute discovered the nervous system plays a critical role in asthma attacks. By targeting treatment at the carotid bodies, they found that blocking receptors during an asthma attack can eliminate symptoms.
Scientists detected alterations in capillary blood flow around the face caused by body position change, revealing a response to hydrostatic pressure difference and external stimuli. The non-contact method provides valuable information on peripheral blood flow regulation, potentially leading to new investigations of body responses.
Researchers have demonstrated that electronic modulation of the carotid sinus nerve can restore insulin sensitivity and glucose homeostasis in diabetic rats. The treatment has been shown to be reversible without significant adverse effects. This study provides a promising new approach for managing type 2 diabetes.
Researchers at The Dartmouth Institute found that physicians with more experience and certain specialties tend to slow the use of carotid revascularization procedures. Despite evidence showing these procedures don't benefit older or symptom-free patients, decline rates remained inconsistent across specialties.
A new tool using readily available data accurately estimates the 30-day mortality risk for patients admitted to the emergency department with acute heart failure. This tool can inform clinical decisions and improve patient outcomes.
The ESC Guidelines provide comprehensive recommendations for the diagnosis and treatment of peripheral arterial diseases, affecting over 40 million Europeans. Key findings include revised guidelines for revascularization of asymptomatic carotid stenosis and a strong recommendation against systematic revascularisation of renal stenosis.
Research found that socioeconomically disadvantaged children are more likely to have thicker carotid artery walls, indicating a higher risk for heart attack and stroke. The study suggests that infection and inflammation may be underlying factors driving this association.
Researchers developed a new method to predict human biological age using carotid artery data, with a mean absolute error of 6.9 and 5.9 years for healthy individuals. The study used a combination of carotid ultrasound and tonometry data, as well as machine learning algorithms.
A national trial is underway to compare intensive medical management and surgical interventions for asymptomatic carotid artery disease. Researchers at MCG and AU Health are enrolling nearly 2,500 participants in the CREST-2 study to determine which treatment approach reduces stroke risk more effectively.
Researchers discovered that microRNA-210 reduces plaque instability and improves fibrous cap stability, potentially reducing the risk of stroke. Local application of microRNA-210 is being explored as a safer alternative to systemic administration, which could minimize side effects.
Patients with carotid artery stenosis are more likely to undergo surgery when treated by fee-for-service physicians, compared to those treated by salary-based military physicians. This suggests that provider-induced demand may be at play, and policymakers should focus on aligning incentives to improve healthcare outcomes.
Researchers found that blocking the enzyme responsible for hydrogen sulfide production can prevent or reduce apneas during sleep. This approach has potential to help people with multiple forms of sleep-disordered breathing, including obstructive and central apneas.
Researchers have identified a potential new way to treat high blood pressure by targeting aberrant nerve signals in the carotid bodies. By blocking these signals, they were able to significantly reduce blood pressure in preclinical models, suggesting a novel approach to controlling cardiovascular disease.
Researchers identify the signaling cascade leading to apnea-associated hypertension and propose a new treatment method by inhibiting cystathionine-y-lyase enzyme. Blocking hydrogen sulfide synthesis can prevent carotid body activation and hypertension in sleep apnea patients.
Research reveals racial differences in stroke care procedures, with minority patients receiving more life-sustaining treatments like gastrostomy and tracheostomy. However, curative procedures such as IVT and carotid revascularization were less common among minority patients, highlighting disparities in stroke care.