Aneurysms
Articles tagged with Aneurysms
Blast exposure linked to brain aneurysms in U.S. Special Operations Forces
A large sample of US Special Operations Forces personnel were found to have a higher prevalence of intracranial aneurysms with greater repeated blast exposure. The study suggests that repeated low-level blast exposure during years of service may leave a measurable vascular signature in the brain.
Study shows mechanisms of aortic aneurysm progression and potential drug therapies
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.
Pregnancy-associated spontaneous coronary artery dissection
The study found that women with pregnancy-associated spontaneous coronary artery dissection (P-SCAD) have a higher risk of cardiovascular events, including dissections and aneurysms. Women with P-SCAD also experienced less recovery in left ventricular ejection fraction compared to those without P-SCAD.
Chinese Neurosurgical Journal reports new therapy for hard-to-treat brain aneurysms
A prospective multicenter study found Woven EndoBridge therapy safe and effective for unruptured wide-necked bifurcation aneurysms in Chinese patients. The therapy promotes durable aneurysm occlusion with minimal risks.
Medicare patients get different stroke care depending on plan, analysis reveals
A study by University of Virginia Health System researchers found that Medicare Advantage patients had better access to preventive care and rehabilitation after a stroke, leading to faster recovery times. In contrast, traditional Medicare patients were less likely to receive these services due to prior authorization requirements.
Stroke warning signs often overlooked in pregnancy
A quarter of pregnant patients suffering stroke symptoms were misdiagnosed due to overlooked warning signs, according to a new study. The researchers highlight the need for better clinician education and decision-support tools to improve maternal health outcomes.
Chinese Neurosurgical Journal study explores the role of aging‑related genes in intracranial aneurysms
Researchers identified 32 common differentially expressed genes involved in IA, including NGFR and SERPINE1, which may serve as biomarkers. The study suggests that understanding the involvement of aging-related genes can aid in developing therapeutic strategies to minimize surgical interventions.
Hanyang University researchers develop novel sensor for continuous endoleak monitoring
A team of researchers has proposed a novel ultrathin flexible sensor inserted endovascularly to detect Type-I endoleaks with maximum rupture risk. The sensor is robust enough to withstand dynamic processes and exhibits long-term stability and functionality.
New Cleveland Clinic research identifies link between gut microbes and an elevated risk for abdominal aortic aneurysms
Researchers found a connection between high TMAO levels and faster rates of aneurysm expansion, as well as greater risk for needing surgery. Targeting TMAO levels may help prevent and treat aneurysmal disease beyond surgery.
High triglycerides drive life-threatening aortic aneurysms, study in mice finds
A study in mice found that high triglyceride levels directly cause abdominal aortic aneurysms, challenging the notion that they are merely biomarkers of vascular disease. Researchers identified specific proteins and lipoproteins as causal drivers of aneurysm development and growth.
Smarter flow simulation model for analyzing blood flow in brain aneurysms
A new computational method combines 4D flow MRI, CFD, and data assimilation to estimate blood flow in brain aneurysms with greater accuracy and efficiency. The approach focuses on the aneurysm region, reducing computational cost while improving flow estimation.
A perfect fit: A Chinese Neurosurgical Journal study shows that Neuroform Atlas stent-assisted coiling is effective even in smaller arteries
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.
Optimizing surgical strategies through a nationwide trial: insights from a Chinese Neurosurgical Journal study
A landmark national study in China identifies the most effective treatment strategies for unruptured brain aneurysms, analyzing over 874,000 clinical entries and 42,000 radiological scans. The trial aims to guide patient-specific treatment strategies and inform healthcare planning in China's aging population.
tRF-AspGTC promotes intracranial aneurysm formation by regulating TRIM29-mediated galectin-3 ubiquitination
A study found that tRF-AspGTC increases the risk of developing intracranial aneurysms by promoting vascular smooth muscle cell transformation and enhancing MMP9 expression. It also regulates TRIM29-mediated galectin-3 ubiquitination, leading to inflammation and oxidative stress.
Blood transfusions for brain bleeding: Large trial in aneurysmal subarachnoid hemorrhage patients adds to debate about optimal threshold
A large trial has found no major difference in clinical outcomes between restrictive and liberal blood transfusion strategies for critically ill patients with aneurysmal subarachnoid hemorrhage. The study suggests that integrating these results with other research can provide a deeper understanding of the optimal threshold.
Scientists identify a probable contributor to weakness of the aorta in people with genetic disorder
Researchers at Johns Hopkins Medicine have discovered that excessive Gata4 protein accumulation in vascular smooth muscle cells contributes to aortic aneurysm vulnerability in Loeys-Dietz patients. The study's findings may help refine treatments for this genetic disorder, which affects connective tissue systems.
Early detection, intensive treatment critical for high-risk patients with Kawasaki Disease
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.
Women more likely than men to die after heart surgery complications
Researchers have found that women are more likely to die from postoperative complications after high-risk cardiovascular surgery, with a failure to rescue rate of 10.7% compared to 8.6% for men. The quality of hospital where the procedure was performed did not affect this disparity.
Obstructive sleep apnea may increase risk of abdominal aortic aneurysms
Researchers found that obstructive sleep apnea increases the susceptibility of mice to develop abdominal aortic aneurysms, likely caused by intermittent hypoxia triggering enzyme activity that degrades the extracellular matrix. This degradation weakens the aorta, making it more prone to rupture.
UAB startup Endomimetics receives $2.8 million Small Business Innovation Research grant
Endomimetics is developing a Bionanomatrix coating to accelerate aneurysm occlusion and minimize thrombus formation in brain aneurysm patients. The coating promotes endothelialization through five synergistic elements, reducing inflammatory responses and platelet adhesion.
Knowing you have a brain aneurysm may raise anxiety risk, other mental health conditions
A new study published in the Stroke journal found that people with brain aneurysms are at higher risk of developing mental health conditions, including anxiety. The study, which analyzed data from over 85,000 people, found that younger adults were particularly vulnerable to this increased risk.
Blood pressure high for years? Beware of stroke risk
A study published in JAMA Network Open found that years of high systolic blood pressure increase the risk of stroke, with Black and Hispanic patients facing a higher risk. Early diagnosis and controlled high blood pressure are crucial to preventing stroke, especially in these populations.
Why aortic aneurysms form at the arch or in the abdominal segment
Researchers identified patterns of upregulated genes in aortic endothelium that contribute to aneurysm formation. They also found stiffer endothelium in sites prone to aneurysms, which can lead to vessel wall alterations and increased risk of rupture.
Clinical implications and procedural complications in patients with patent foramen ovale concomitant with atrial septal aneurysm
Patients with PFO and ASA are at risk of complications after closure, including left atrial dysfunction and cryptogenic stroke. The authors provide practical guidance for managing these concomitant conditions.
Disturbed blood flow can damage the vessel wall in cases of aortic dilation
A study by Linköping University researchers found that disturbed blood flow can cause inflammation and breakdown of the vessel wall in cases of aortic dilation. This discovery could lead to better diagnosis and treatment options for patients at risk of serious complications.
Could taking certain drugs reduce risk of ruptured brain aneurysm?
Researchers found that taking lisinopril, simvastatin, metformin, and tamsulosin may lower the risk of a ruptured brain aneurysm. The study associated these drugs with a decreased risk after adjusting for other factors.
Acute pseudoaneurysms following head gunshot wounds
A new study reveals that traumatic intracranial aneurysms are more common and associated with intracerebral hematomas after civilian gunshot wounds, challenging conventional wisdom. Spontaneous resolution occurs in approximately 40% of patients.
Researchers create human aortic aneurysm model to advance disease understanding, treatment testing
Scientists have developed a functional model of thoracic aortic aneurysm using human cells in laboratory rats, offering new avenues for drug development and effective screening. The model successfully mimics dilation of the human aorta and has potential applications for treating this potentially fatal condition.
Primary care scarcity linked to more surgical emergencies & problems
Patients living in areas with severe primary care shortages have a higher risk of emergency surgery, complications after surgery, and readmission. The study highlights the need for efforts to increase training and geographic distribution of primary care providers.
Nanomedicine research aims to transform treatment of aortic aneurysms
Researchers are developing minimally invasive techniques to repair and regenerate tissue in aortic aneurysms using actively targeted, drug-releasing nanoparticles. The team found that rod-shaped particles with high aspect ratios were selectively taken up by diseased endothelial cells, leading to improved therapy outcomes.
Aorta recognised as an independent organ for the first time
The new guidelines recognize the aorta as an independent organ, bundling its treatment with other specialties. This holistic approach improves treatment outcomes for patients with aortic rupture and other serious diseases.
Unstable ‘fluttering’ predicts aortic aneurysm
Researchers developed a physics-based metric to predict aortic aneurysm development, measuring 'fluttering' in blood vessels. The 'flutter instability parameter' forecasted abnormal growth three years prior to occurrence with 98% accuracy.
Does patient-surgeon gender concordance lead to lower patient mortality? Mostly no, UCLA-led research suggests
A study of over 2.9 million patients found that gender concordance was associated with lower mortality for female patients, but higher mortality for male patients. The quality of surgical care provided by female surgeons is equivalent to or slightly better than that provided by male surgeons.
Use it or lose it: New robotic system assesses mobility after stroke
A novel robotic system developed by USC researchers can help clinicians accurately assess a patient's rehabilitation progress. The method generates an 'arm nonuse' metric using machine learning and a socially assistive robot to track how much a patient is using their weaker arm spontaneously.
Defect in fruit fly respiratory system may provide insights into human aortic aneurysms
A study in fruit flies reveals a potential connection between a respiratory system defect and the development of aortic aneurysms in humans. Researchers identified proteins that play a crucial role in maintaining tube structure and integrity, which may also be relevant to human tubular diseases.
One in 3 adults with new-onset AFib occurring during hospitalization will have recurrent episode within a year
A study of hospitalized adults with new-onset atrial fibrillation found that 1 in 3 patients experienced a recurrent episode of AF within a year. This rate is approximately 7 times higher than in matched control participants, suggesting that oral anticoagulation therapy may be warranted for these patients.
UTHealth Houston study: Unruptured brain aneurysms may be missed in routine clinical care, but AI-powered algorithm can help
A new study from UTHealth Houston finds that AI-powered algorithm can improve detection rates of unruptured cerebral aneurysms. The study used a machine learning algorithm to analyze CT angiograms and identified 36 true aneurysms, with 24 previously not referred for follow-up.
New study sheds light on the role of Wnt/β-catenin signaling in abdominal aortic aneurysm
Researchers investigated the Wnt signaling pathway's deregulation in human abdominal aortic aneurysm and found marked increases in WNT2 mRNA levels and active β-catenin. The study suggests that the Wnt/β-catenin pathway may be a promising therapeutic target for AAA, but current inhibitors showed limited efficacy.
Alfred E. Mann Charities, Inc. awards $500,000 to USC Neuro Revascularization Center
The USC NRV Center performs complex revascularization procedures and conducts innovative research to treat debilitating conditions. The center will use the funding to enhance clinical care and education with a focus on technological innovation.
The mutant origin of brain aneurysms and the first drug treatment
Scientists at RIKEN Center for Brain Science find that somatic mutations in six genes lead to intracranial aneurysms, which can be blocked with a drug. The study establishes the first non-surgical animal model of intracranial aneurysm and provides a potential new treatment option.
A Chinese Neurosurgical Journal study presents consensus on the management of aneurysmal subarachnoid hemorrhage-related hydrocephalus
Aneurysmal subarachnoid hemorrhage-related hydrocephalus is a complex syndrome that can lead to cognitive impairment and neurological damage. The new consensus guideline recommends standard-of-care approaches, including history review, head CT scans, and medications or surgical interventions to manage excessive intracranial pressure.
University of Cincinnati study examines role of metabolites in disease treatment
Researchers found increased levels of TMAO in abdominal aortic aneurysm (AAA) patients, which led to disease progression. Inhibiting TMAO production reduced aneurysm severity, suggesting a potential therapeutic target.
Kentucky, Michigan scientific researchers awarded $2 million to study new heart disease, stroke treatments
Two researchers will receive $1 million each for their five-year studies on new medication-based approaches to repair damaged aortas, as well as the effects of exercise on healing heart muscle and brain tissue after a heart attack or stroke. The American Heart Association's Merit Award supports innovative research with high impact.
Abdominal aortic aneurysm: new treatment may reduce size; COVID infection may speed growth
Researchers found that immune-modulating cells may slow the expansion of bulges in the aorta by creating a less-inflammatory environment. A second study discovered evidence that a COVID-19 infection promotes the enlargement of abdominal aortic aneurysms, which are extremely dangerous and potentially fatal if they rupture.
Researchers identify possible risk factors for aneurysm growth in adults living with HIV
Researchers have identified low CD4 counts, high viral loads and inconsistent antiretroviral therapy use as possible risk factors for aneurysm formation and growth in adults living with HIV. A history of more severe illness may also be associated with a higher risk of brain aneurysm growth.
Researchers ID gene that shapes heart attack, aneurysm risk
A study published in Circulation Research identifies the FHL5 gene as a key regulator of vascular disease, including heart attacks and aneurysms. The discovery advances our understanding of the underlying causes of vascular disease and provides new insights into genetic risk factors.
Detecting, predicting, and preventing aortic ruptures with computational modeling
Using image-based computational blood dynamics, researchers mimicked health conditions and investigated hemodynamic parameters to better understand how aneurysm size affects blood flow. They found that altered blood flow velocity distribution can lead to rupture, emphasizing the importance of early detection and treatment options.
BIDMC research guides FDA action on common medical device
Researchers from Beth Israel Deaconess Medical Center found that newer unibody aortic stent grafts failed to meet non-inferiority compared to non-unibody devices. A surveillance program is recommended to monitor safety events related to aortic stent grafts.
Algorithm predicts females have higher risk for kidney damage after aneurysm repair
A new algorithm predicts female patients are at higher risk for kidney damage after aneurysm repair, with those having reduced glomerular filtration rate facing a 4.7 times increased risk. The algorithm could help identify patients at risk and optimize them before surgery.
The molecular mechanism behind abdominal aneurysms
A new study using mice reveals that genetic mutations associated with increased risk of abdominal aneurysms, a 'silent killer' condition responsible for nearly 5,000 deaths annually. The findings could lead to earlier detection methods and screening for predisposed patients.
University of Oklahoma researchers designing device to improve brain aneurysm treatment
Researchers at the University of Oklahoma are designing a customized device to better treat unique brain aneurysms. The device uses advanced biomedical 3-D printing to tailor the treatment to the specific shape, size, and location of each aneurysm.
The best genetic predictors of heart arrhythmia and hidden comorbidity
Researchers at RIKEN Center for Integrative Medical Sciences discover genes and individual variations associated with atrial fibrillation, predicting stroke and mortality risk. They also uncover a potential treatment target, ERRg, involved in the pathogenesis of atrial fibrillation.
When FMD hits a family, abdominal aortic aneurysms may too
Researchers discover a shared genetic basis between fibromuscular dysplasia (FMD) and abdominal aortic aneurysms (AAA), with males more likely to develop AAA when a family member has FMD. The study suggests that screening for AAA in male relatives of patients with FMD may be beneficial, along with established guidelines.
Injectable biomaterial with enhanced mechanical and coagulative capabilities for treating aneurysms
A new injectable hydrogel has been developed with enhanced shear-thinning properties, improved cellular biocompatibility, and significantly reduced clotting times. The biomaterial was created by adding sodium phytate to a gelatin-based compound, promoting even greater cohesion and triggering the initiation of blood coagulation.
Predicting risk of aneurysm rupture
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.
Large study of thoracic aortic aneurysm backs guidelines
A large Kaiser Permanente study found that most patients with a thoracic aortic aneurysm less than 5.5 cm are not at high risk of experiencing dissection or requiring surgery. The study's findings support the current consensus guidelines recommending surgery for patients with larger aneurysms.
Treating aneurysms with injectable toothpaste-like biomaterials
Researchers have developed an injectable shear-thinning hydrogel that exhibits enhanced cohesive strength, resisting fragmentation even under pulsating liquid flows. The gel, similar to toothpaste, retains its structure when force is removed, making it a potential breakthrough in treating critical vascular conditions.
Death rate for torn aorta drops, still 5 times more deadly without surgery, study finds
A study published in JAMA Cardiology found that the mortality rate for patients with a torn aorta has decreased significantly, from 37% in the 1950s to nearly 6% today. However, patients who did not receive surgery died at a rate five times higher than those who underwent treatment.
Experimental drug reduces risk of death from blood vessel rupture in mice
Researchers developed nanoparticles to deliver anti-inflammatory payloads directly to inflamed blood vessels, significantly increasing survival chances and delaying rupture onset. Targeting specific NF-kappaB subunits improved therapeutic effects with fewer adverse effects.