Articles tagged with Arteries
Researchers developed an artery-on-a-chip platform to predict ischemic stroke risk by replicating a patient's specific vascular structure and blood flow dynamics. The tool, called a 'physical twin,' reveals that three-dimensional vascular shape and local flow disturbances matter more than simple narrowing in predicting stroke risk.
Using the YEARS diagnostic algorithm is as safe as computed tomographic pulmonary angiography (CTPA) for diagnosing suspected pulmonary embolism in patients with cancer. This strategy saved 22% of patients from undergoing CTPA, highlighting its potential to streamline cancer care.
The Ross Procedure offers long-term benefits and normal quality of life due to its living pulmonary valve replacement. Excellent durability and physiologic valve function are achieved, challenging traditional conceptions around the operation.
Researchers have made major steps toward solving the mystery of how brain aneurysms form by identifying key cell types and genetic pathways involved. The study's findings provide new insights into a clinical paradox: smaller aneurysms can still rupture, and offer opportunities for early intervention to prevent ruptures.
Researchers found that clonal hematopoiesis accelerates aortic aneurysm progression and that commonly used osteoporosis drugs can slow or halt this process. The study identified a key mechanism by which macrophages contribute to extracellular matrix degradation, providing a potential non-surgical approach for treating aortic aneurysms.
Researchers found that glycation stress, caused by methylglyoxal, promotes aortic stiffening and cellular senescence. Natural compound Gly-Low, containing nicotinamide and alpha-lipoic acid, reversed these effects and reduced stiffness in aging mice.
Researchers have identified connexin 43 as a vital protein for endothelial repair in mice, which could lead to new therapies to improve recovery and reduce complications after vascular surgery. The study found that the protein helps blood vessels recover after damage, suggesting it could be a target for treatments.
A new drug-eluting balloon has been shown to match the outcomes of standard care for in-stent restenosis, offering a safer alternative for patients with multiple stent layers. The study's results suggest that patients with complex or multilayer ISR may benefit from sirolimus-eluting balloons as a viable treatment option.
Graz researchers investigate homocysteine's impact on the aorta, finding elevated levels lead to stiffer and less elastic vessels. This discovery contributes to understanding of cardiovascular diseases like atherosclerosis.
Researchers identified a distinctive CT imaging pattern called PRACE that predicts severe postpartum hemorrhage cases requiring emergency procedures. The finding was strongly associated with the need for uterine artery embolization and improved maternal outcomes.
Research found Covid infection may accelerate blood vessel aging around five years, especially in women, leading to a higher risk of cardiovascular disease. The study included 2,390 participants from 16 countries and found stiffer arteries in all three groups of patients who had been infected with Covid.
A study published in Chinese Neurosurgical Journal found that the Neuroform Atlas stent-assisted coiling procedure is safe and effective for treating intracranial aneurysms in arteries less than 2.5 mm in diameter, with favorable outcomes and low postoperative complication rates.
Researchers at Stanford University developed a new technique called the milli-spinner thrombectomy that significantly improves success rates in treating strokes and other clot-related diseases. The milli-spinner can reduce clots to as little as 5% of their original volume, making it a promising tool for improving patient outcomes.
Using intravascular imaging (IVI) to guide stent implantation reduces death, stent thrombosis, and repeat procedures in severely calcified lesions. IVI outperforms conventional angiography in improving patient outcomes.
A recent study published in the International Journal of Cardiology analyzed data from multiple clinical trials to assess the therapeutic impact of pulmonary artery denervation (PADN) on pulmonary hypertension patients. PADN showed significant reductions in mean right atrial pressure, mean pulmonary artery pressure, and pulmonary vascu...
A new study published by the American Academy of Neurology has found a nearly five-fold increase in U.S. hospitalizations for cervical artery dissection between 2005 and 2019. The study, which analyzed 125,102 hospitalizations, found that rates rose steadily year-over-year, with significant increases among certain racial groups.
A large new study of over 40,000 patients found that a zero coronary artery calcium score continues to be an accurate indicator of low risk for coronary heart events even as people age. Patients with a zero plaque burden had a two to three times lower risk of death from any cause, including in seniors.
In an open-label study, patients hospitalized for a serious heart attack who received rivaroxaban or warfarin had similar efficacy and safety outcomes. Rivaroxaban showed comparable results in dissolving left ventricular blood clots at three months follow-up.
A large study suggests that patients at high risk of heart attacks and strokes should be treated immediately with a combination of a statin and ezetimibe, rather than statins alone. This combination therapy significantly reduces the risk of death from any cause and major adverse cardiovascular events.
Research from the Long Life Family Study found individuals from long-lived families have significantly better vascular health than the general population. The study identified key risk factors and four genomic regions linked to PAD risk, providing novel insight into underlying mechanisms.
The study found that combining coronary calcium score with a primary prevention strategy in intermediate-risk patients with a family history of coronary artery disease reduces atherogenic lipids and slows plaque progression compared to usual care. This data supports the use of CAC scores to assist intensive preventive strategies.
Kennesaw State researcher Chen Zhao has earned the 2025 American Heart Association Institutional Research Enhancement Award for his innovative study on non-invasive blood flow prediction in cardiovascular disease diagnosis. His technology uses coronary computed tomography angiography (CCTA) scans to measure Fractional Flow Reserve (FFR...
A new study found that artificial sweetener aspartame triggers insulin spikes leading to blood vessel inflammation in mice, which can contribute to atherosclerosis and increased risk of heart attacks and stroke. The researchers identified an immune signal called CX3CL1 that plays a key role in this process.
Emboa Medical creates a microstructured catheter called TRAP, which mimics a boa constrictor's teeth arrangement to grab onto blood clots without tearing them. The TRAP design has shown significant benefits in removing clots on the first attempt and improving outcomes for stroke patients.
A new study published in the American Heart Association's Hypertension Journal highlights distinct blood pressure patterns among East and South Asian adults living in the UK. Researchers found that South Asian adults face high blood pressure-related heart risks earlier in life, while East Asian adults see risks rise in later years.
A new study suggests that delivering tenecteplase directly into a large brain artery after removing a blood clot can improve stroke survivors' function 90 days later. The treatment, which was tested in 127 patients, showed promising results compared to standard medical care.
The DISTAL trial found that endovascular therapy in addition to best medical therapy did not reduce disability more than clot-busting treatment alone for patients with medium distal vessel blockages. The study showed that mechanical clot removal was a safe option, but its benefits were uncertain.
Researchers found that brief ozone exposure reduces blood oxygen saturation, triggers hypoxia-related biomarkers, and increases arterial stiffness. Ozone pollution is a worldwide health issue, linked to increased risk of cardiovascular diseases.
Scientists have developed swarms of tiny magnetic robots that can lift and transport heavy objects, thanks to their unique assembly configuration and rotating magnetic field. The microrobots can even guide small organisms through complex motions.
Valentin Fuster, MD, PhD, has made significant contributions to the understanding of atherosclerosis through his research on inflammation, thrombosis, and treatment breakthroughs. His work has led to major advances in diagnosis and therapy, including the development of a cardiovascular 'polypill' that reduces cardiovascular mortality.
Researchers found that certain cancer treatments, such as immune checkpoint inhibitors, can trigger damaging levels of inflammation in the heart and increase risk of heart disease. This is because these treatments interfere with immune regulation in the heart's largest blood vessels.
Researchers identified acute effects of cigarette and e-cigarette smoking on vascular function, including decreased blood flow velocity and venous oxygen saturation. The study found that vaping with and without nicotine led to significant changes in vascular function, highlighting the potential harm of vaping even without nicotine.
A team of researchers at the University of California San Diego has developed a clinically validated, wearable ultrasound patch for continuous and noninvasive blood pressure monitoring. The device offers precise, real-time readings of blood pressure deep within the body, providing detailed trends in blood pressure fluctuations.
A clinical trial found that combining two commonly recommended medications into a single pill lowered blood pressure and was safe among Indian adults. The study's results have significant meaning for South Asian adults, including those living in the US.
A randomized clinical trial found partial cardiac denervation effective in preventing postoperative atrial fibrillation after isolated coronary artery bypass grafting without additional complications. This suggests partial cardiac denervation as a viable option for preventing postoperative atrial fibrillation after CABG.
Researchers studied heart failure patients in zero gravity to assess the impact on left ventricular filling pressures. They found that external constraint affects cardiac hemodynamics, leading to changes in blood pressure and potential new treatment avenues for heart failure management.
A new scientific statement highlights improvements in diagnosis, initial treatment, and long-term management of patients with Kawasaki Disease, emphasizing the need for tailored management strategies. Advances in cardiac imaging techniques and risk categorization have led to better patient outcomes.
A new hourglass-shaped stent could improve blood flow and alleviate severe chest pain in people with microvascular disease. The study found that 76% of participants experienced improvement in their daily activities, including walking and climbing stairs without pain.
A study found that using an orbital atherectomy device to remove calcium from blocked coronary arteries before stenting procedures did not improve patient outcomes. The device was used on patients with moderately severe calcification, rather than extreme cases, and did not show significant benefits.
The world's first combined face and whole-eye transplantation successfully used personalized surgical cutting guides and a novel 'shortcut' to maintain blood flow. Innovative techniques ensured optimal blood flow to the retina, safeguarding the viability of the transplanted eye during the procedure.
A Brazilian study found that high blood pressure hardens the bronchi and increases airway resistance, reducing respiratory capacity. Regular physical activity may partially protect against this hardening.
Researchers at the University of Virginia Health System have identified a crucial biological switch that regulates renin production in certain cells, allowing them to control blood pressure. This discovery provides important direction for future research into high blood pressure and cardiovascular disease treatment.
A nationwide cohort study revealed a higher risk of placental problems, premature births, and severe bleeding in subsequent deliveries following uterine artery embolization. Babies born to mothers who underwent UAE also had a higher chance of major birth defects, particularly heart problems.
A study finds that cardiometabolic indicators like metabolic syndrome and diabetes impair coronary microvascular function, increasing cardiovascular risk. The presence of subclinical atherosclerosis also contributes to altered microvessel function.
A study by Columbia University's Mailman School of Public Health found that metal exposure is associated with the progression of plaque buildup in arteries, comparable to traditional risk factors like smoking and diabetes. Metal levels in urine were found to increase coronary calcification over time, with higher levels linked to a grea...
New study finds that extended estrogen suppression using aromatase inhibitors for hormone receptor-positive postmenopausal breast cancer is safe and does not increase the risk of coronary artery calcification. The duration of treatment and presence of osteoporosis were not associated with increased coronary artery calcification scores.
A new study published in the journal JCI Insight found that male mice fed high-cholesterol diets have increased cardiovascular disease risk in their female offspring. The researchers used a novel method to study sperm small RNA and discovered altered molecules that affect gene expression in early embryonic stem cells.
Researchers at CNIC have identified endothelial-to-mesenchymal transition as a novel mechanism in premature atherosclerosis in progeria. The study proposes a new therapeutic target for this disease and highlights the importance of investigating rare diseases like progeria.
A study published in JAMA finds that balloon angioplasty plus aggressive medical management reduces the risk of any stroke or death within 30 days. The treatment approach may be effective for symptomatic intracranial atherosclerotic stenosis, but with consideration for increased stroke risk after balloon angioplasty.
Researchers have elucidated how new arteries form in the heart using single-cell sequencing and 3D mapping. Pre-arterial cells play a major role in growing new arteries, contradicting current thinking about artery development. This discovery opens possibilities for developing treatments that stimulate regenerative pathways.
High levels of lipoprotein (a) found in 20-34% of Polish patients with heart disease or at risk. Lp(a) measurements may be crucial in preventing cardiovascular diseases and atherosclerosis progression.
A study published in Circulation found that adults aged 50-54 with severely narrowed leg arteries had a higher risk of amputation after emergency surgery than those aged 80-84. This contradicts the traditional belief that older people are at increased risk.
A Swedish researchers have created a questionnaire test that quickly identifies individuals at high risk of heart attack. The test has been shown to be as accurate as blood tests and blood pressure measurements, detecting 65% of those at the highest risk of cardiovascular disease.
Black participants with greater access to green spaces had up to 35% lower odds of calcification, while those near a river had 32% lower odds. These findings highlight the potential benefits of environmental policies promoting public health and addressing racial and neighborhood-related health disparities.
A preliminary clinical trial found that nicotinamide riboside, a form of vitamin B3, increased the walking endurance of patients with peripheral artery disease by over 57 feet. The study suggests that nicotinamide riboside may be a new option for treating chronic leg disease.
A Danish-Spanish collaboration is launching the REACT initiative to develop early detection and prevention methods for atherosclerosis. The project aims to identify new means to detect atherosclerosis at earlier stages and at a younger age, enabling precision treatment and prevention.
The 2024 AHA/ACC Guideline on the Management of Lower Extremity Peripheral Artery Disease aims to improve patient outcomes by emphasizing timely diagnosis and treatment. Coordinated care among a multispecialty team is crucial in reducing the risk of amputation, heart attack, stroke, and death for individuals with PAD.
Researchers discovered that IL-6 signaling in CD4-positive T cells promotes pulmonary hypertension development and progression. Treating mice with IL-6 inhibitors improved symptoms and decreased damage to the lungs and heart.
Researchers at Weill Cornell Medicine have discovered a way to boost protective effects of sphingolipids in blood vessels, slowing the development and progression of coronary artery disease. The study suggests revising current views on ceramides' role in the disease, instead finding that their levels remain stable in endothelial cells.
A new study found that a non-invasive imaging test can help identify patients with coronary artery blockage or narrowing who need a revascularization procedure. The test, called CT-FFR, uses CTA images and AI algorithms to model coronary blood flow, reducing the need for invasive procedures.