keyword
https://read.qxmd.com/read/38529728/unsupervised-denoising-and-super-resolution-of-vascular-flow-data-by-physics-informed-machine-learning
#1
JOURNAL ARTICLE
Théophile Sautory, Shawn C Shadden
PURPOSE: We present an unsupervised deep learning method to perform flow denoising and super-resolution without high resolution labels. We demonstrate the ability of this model to reconstruct 3D stenosis and aneurysm flows, with varying geometries, orientations, and boundary conditions. METHODS: Ground truth data was generated using computational fluid dynamics, and then corrupted with multiplicative Gaussian noise. Autoencoders were used to compress the representations of the flow domain geometry and the (possibly noisy and low-resolution) flow field...
March 26, 2024: Journal of Biomechanical Engineering
https://read.qxmd.com/read/38528441/percutaneous-femoral-access-stuck-guide-wire-decannulation-difficulty-due-to-unravelling-and-knotting
#2
JOURNAL ARTICLE
Bhanu Pratap Singh Chauhan, Binita Dholakia, Ashfaque Khan, Chirag Hirani, Satheesh Kumar, Dibya Jyoti Mahakul, Abhishek Katyal, Wajid Nazir, Daljit Singh
Percutaneous techniques for femoral arterial access are increasingly being performed due to advances in endovascular cerebral procedures, as they provide a less morbid and minimally invasive approach than open procedures. Common complications associated with this peripheral puncture include hematoma, bleeding, pseudoaneurysm, arteriovenous fistula, retroperitoneal bleeding, inadvertent venous puncture, dissection, etc. The retrograde femoral access is currently the most frequently used arterial access as it is technically straightforward, allows for the use of larger size sheaths and catheters, allows repeated attempts, etc...
March 27, 2024: Journal of Cerebrovascular and Endovascular Neurosurgery
https://read.qxmd.com/read/38527232/predictive-model-for-estimating-the-risk-of-epilepsy-after-aneurysmal-subarachnoid-hemorrhage-the-rise-score
#3
JOURNAL ARTICLE
Daniel Campos-Fernandez, Marc Rodrigo-Gisbert, Laura Abraira, Manuel Quintana Luque, Manel Santafé, Sofia Lallana, Elena Fonseca, Manuel Toledo, Darío F Gándara, Fuat Arikan, Alejandro Tomasello, Jacint X Sala Padró, Merce Falip, Pablo López-Ojeda, Andreu Gabarrós, Anna Sánchez, Estevo Santamarina
BACKGROUND AND OBJECTIVES: The occurrence of seizures after aneurysmal subarachnoid hemorrhage (aSAH) is associated with a poorer functional and cognitive prognosis and less favorable quality of life. It would be of value to promptly identify patients at risk of epilepsy to optimize follow-up protocols and design preventive strategies. Our aim was to develop a predictive score to help stratify epilepsy risk in patients with aSAH. METHODS: This is a retrospective, longitudinal study of all adults with aSAH admitted to our center (2012-2021)...
April 23, 2024: Neurology
https://read.qxmd.com/read/38523940/an-unusual-case-of-non-typhoidal-salmonella-bacteremia-causing-life-threatening-aortitis
#4
Fawwad A Ansari, Stefan Gafoor, Mubashira Aftab, Zola Nlandu
Non-typhoidal Salmonella typically presents with gastroenteritis. However, an invasive Salmonella infection, which may be typically seen in immunocompromised patients, has a propensity for aortic involvement, especially in patients with risk factors for atherosclerosis. Here we present a 60-year-old female with multiple comorbid conditions and currently on immunosuppressants for rheumatoid arthritis, who presented with nausea, vomiting, and fever of three weeks duration and was found to have Salmonella bacteremia...
February 2024: Curēus
https://read.qxmd.com/read/38521811/a-highly-selective-mpges-1-inhibitor-to-block-abdominal-aortic-aneurysm-progression-in-the-angiotensin-mouse-model
#5
JOURNAL ARTICLE
Lauren M Weaver, Madeline J Stewart, Kai Ding, Charles D Loftin, Fang Zheng, Chang-Guo Zhan
Abdominal aortic aneurysm (AAA) is a deadly, permanent ballooning of the aortic artery. Pharmacological and genetic studies have pointed to multiple proteins, including microsomal prostaglandin E2 synthase-1 (mPGES-1), as potentially promising targets. However, it remains unknown whether administration of an mPGES-1 inhibitor can effectively attenuate AAA progression in animal models. There are still no FDA-approved pharmacological treatments for AAA. Current research stresses the importance of both anti-inflammatory drug targets and rigor of translatability...
March 23, 2024: Scientific Reports
https://read.qxmd.com/read/38517676/differences-and-correlations-of-morphological-and-hemodynamic-parameters-between-anterior-circulation-bifurcation-and-side-wall-aneurysms
#6
JOURNAL ARTICLE
Kai-Kai Guo, Chang-Ya Liu, Gao-Hui Li, Jian-Ping Xiang, Xiao-Chang Leng, Yi-Ke Cai, Xue-Bin Hu
OBJECTIVE: The objective of this research was to explore the difference and correlation of the morphological and hemodynamic features between sidewall and bifurcation aneurysms in anterior circulation arteries, utilizing computational fluid dynamics as a tool for analysis. METHODS: In line with the designated inclusion criteria, this study covered 160 aneurysms identified in 131 patients who received treatment at Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, China, from January 2021 to September 2022...
March 22, 2024: Current Medical Science
https://read.qxmd.com/read/38515996/spontaneous-bilateral-superficial-femoral-artery-pseudoaneurysms-and-a-unilateral-posterior-tibial-artery-aneurysm-in-an-immunocompromised-patient
#7
Jonathan Crisp, Manal Ahmad, Stephen Crockett, Abdulla Mohamed, Mohamad Hamady, Ondina Bernstein, Joseph Shalhoub
KEY CLINICAL MESSAGE: The presence of multiple pseudoaneurysms in a patient should prompt investigations for the underlying etiologies including autoimmune and immunosuppressive disease processes. Treatment options include open repair and endovascular stenting. ABSTRACT: Pseudoaneurysms (also known as false aneurysms) are atypical dilatations or outpouchings from a vessel which are not always contained by the three layers of a normal vessel wall, namely the intima, media, and adventitia...
March 2024: Clinical Case Reports
https://read.qxmd.com/read/38515364/endovascular-biopsy-in-neurointerventional-surgery-a-systematic-review
#8
REVIEW
Oleg Shekhtman, Georgios S Sioutas, Gennadii Piavchenko, Shubhang Bhalla, Daniel L Cooke, Ethan Winkler, Jan-Karl Burkhardt, Visish M Srinivasan
INTRODUCTION: Endothelial cells (ECs) continuously line the cerebrovasculature. Molecular aberrations in the ECs are hallmarks and contributory factors to the development of cerebrovascular diseases, including intracranial aneurysms and arteriovenous malformations (AVMs). Endovascular biopsy has been introduced as a method to harvest ECs and obtain relevant biologic information. We aimed to summarize the literature on endovascular biopsy in neurointerventional surgery. METHODS: We conducted a comprehensive literature search in multiple databases, identifying eligible studies focusing on neurosurgical applications of endovascular biopsy...
March 22, 2024: Interventional Neuroradiology
https://read.qxmd.com/read/38497203/pulmonary-edema-in-a-young-male-with-severe-uncontrolled-cardiovascular-risk-factors-and-pan-vascular-atherosclerosis-a-case-report
#9
JOURNAL ARTICLE
Andrea Palomba, Francesco Pelizzo, Mattia Canevari, Olga Vriz
Cardiovascular risk factors are the cause of atherosclerotic disease, which can involve all the elastic and muscolo-elastic arteries. The etiopathogenesis of atherosclerosis is multifactorial since genetics, lifestyle, and comorbidities can be simultaneously involved. Clinical manifestations can be heterogeneous and include myocardial infarction, stroke, aortic aneurysms, renal artery stenosis, renal insufficiency, peripheral artery disease, etc. Currently, 70% of clinical events cannot be prevented with available drug therapy, statins included, and at least 10% of coronary events occur in apparently healthy individuals in the absence of major traditional risk factors...
March 12, 2024: Monaldi Archives for Chest Disease
https://read.qxmd.com/read/38495428/mycotic-pulmonary-artery-aneurysm-a-rare-complication-of-ventricular-septal-defect-with-infective-endocarditis-a-case-report
#10
Selma Khouchoua, Lina Belkouchi, Najlaa Lrhorfi, Siham El Haddad, Nazik Allali, Latifa Chat
INTRODUCTION: Pulmonary artery aneurysms encompass a wide range of presentations and forms. Mycotic aneurysms represent a particular subset of focal dilatation of the vessel wall with high morbidity and mortality rates. Herein, we report the case of a 32 year old patient, with a prior history of ventricular septal defect presenting with a mycotic pulmonary artery aneurysm associated with infective endocarditis and septic emboli. CASE PRESENTATION: We present the case of a 32 year old male with known history of congenital ventricular septal defect presented to the emergency department with signs of sepsis and dyspnea...
2024: Clinical Medicine Insights. Case Reports
https://read.qxmd.com/read/38487644/hybrid-approach-to-management-for-a-patient-with-culture-negative-infective-endocarditis-with-profunda-femoris-mycotic-pseudoaneurysm-a-case-report-and-review-of-the-literature
#11
Fahad M Alshair, Abdullah H Baghaffar, Mazin A Fatani, Reda A Jamjoom
Mycotic pseudoaneurysms can be a serious and life threatening complication of left sided infective endocarditis. They most commonly affect the major axial vessels. Profunda femoris artery (PFA) aneurysms are rare and present in only 0.5% of all peripheral aneurysms, regardless of the underlying etiology. We present a case of a patient who underwent mitral valve repair for severe mitral regurgitation secondary to culture negative IE which was complicated by multiple mycotic pseudoaneurysm. The PFA pseudoaneurysm which was affected and was complicated with a large hematoma compressing the femoral nerve...
March 2024: Clinical Case Reports
https://read.qxmd.com/read/38485071/evaluating-growth-patterns-of-abdominal-aortic-aneurysms-among-women
#12
JOURNAL ARTICLE
Kathryn DiLosa, Gregory Brittenham, Cara Pozolo, Nasim Hedayati, Mimmie Kwong, Steven Maximus, Misty Humphries
OBJECTIVES: Though initially protected from vessel dilation by estrogen, women may experience rapid abdominal aortic aneurysm (AAA) growth post-menopause. The rate of growth has been poorly defined in prior literature. Here we describe aneurysm growth in a cohort of women found through an AAA screening program. METHODS: Women with AAA were retrospectively identified. Aortic imaging was reviewed, and measurements of maximum transverse and anterior-posterior diameters were completed...
March 12, 2024: Journal of Vascular Surgery
https://read.qxmd.com/read/38468678/a-case-that-encapsulates-the-challenges-of-being-a-neurosurgeon-in-war-torn-countries-perspectives-from-iraq
#13
Yara Alfawares, Mustafa Ismail, Vishan P Ramanathan, Norberto Andaluz, Samer S Hoz
BACKGROUND: The provision of healthcare services in Iraq has been negatively affected by a lack of resources, strained healthcare infrastructure, and low patient socioeconomic status. This paper describes a case of multiple intracranial aneurysms (MIAs) that highlight the challenges of practicing vascular neurosurgery in Iraq. CASE DESCRIPTION: A 57-year-old female presented with sudden-onset severe headache, photophobia, and drowsiness and was diagnosed with subarachnoid hemorrhage in the basal cistern...
2024: Surgical Neurology International
https://read.qxmd.com/read/38464309/coordination-between-cytoskeletal-organization-cell-contraction-and-extracellular-matrix-development-is-depended-on-lox-for-aneurysm-prevention
#14
Rohtem Aviram, Shelly Zaffryar-Eilot, Anna Kaganovsky, Anas Odeh, Shay Melamed, Ruslana Militsin, Cameron B Pinnock, Ariel Shemesh, Raz Palty, Santhi K Ganesh, Peleg Hasson
Distinct, seemingly independent, cellular pathways affecting intracellular machineries or extracellular matrix (ECM) deposition and organization, have been implicated in aneurysm formation. One of the key genes associated with the pathology in both humans and mice is Lysyl oxidase (LOX), a secreted ECM-modifying enzyme, highly expressed in medial vascular smooth muscle cells. To dissect the mechanisms leading to aneurysm development, we conditionally deleted Lox in smooth muscle cells. We find that cytoskeletal organization is lost following Lox deletion...
February 29, 2024: bioRxiv
https://read.qxmd.com/read/38463765/the-impact-of-multiple-stenosis-and-aneurysms-on-arterial-diseases-a-cardiovascular-study
#15
JOURNAL ARTICLE
Mohammed Nasir Uddin, K E Hoque, M M Billah
The comparative effect of serial stenosis and aneurysms arteries on blood flow is examined to identify atherosclerotic diseases. The finite element approach has been used to solve the continuity, momentum, and Oldroyd-B partial differential equations to analyze the blood flow. Newtonian and non-Newtonian both cases are taken for the viscoelastic response of blood. In this study, the impact of multiple stenotic and aneurysmal arteries on blood flow have been studied to determine the severity of atherosclerosis diseases through the analysis of blood behavior...
March 15, 2024: Heliyon
https://read.qxmd.com/read/38459850/-aneurysmal-bone-cyst-of-the-rib-report-of-a-case
#16
JOURNAL ARTICLE
Takehiko Shimoyama, Yasunori Kanno, Shizu Saito
We report a case of an aneurysmal bone cyst (ABC) originating in a rib. A 34-year-old woman was admitted to our medical department for evaluation of left rib pain and an abnormal shadow in the left 7th rib observed on chest radiography. Computed tomography (CT) revealed an osteolytic lesion involving the left 7th rib. Positron emission tomography/CT showed slight fluorodeoxyglucose uptake in the lesion. We performed 7th rib resection with a 4 cm margin from the tumor, including the intercostal muscles in the 6th and 7th interspaces...
January 2024: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://read.qxmd.com/read/38455714/a-case-of-long-term-survival-with-recurrent-liver-metastases-from-gastric-cancer-treated-with-nivolumab
#17
Atsushi Horiuchi, Shun Akehi, Yuta Fujiwara, Sakura Kawaharada, Takayuki Anai
INTRODUCTION: Improvements in overall survival from advanced gastric cancer have recently been reported with nivolumab. However, few reports have described long-term survival after discontinuing treatment. CASE PRESENTATION: A 67-year-old man diagnosed with advanced gastric cancer and abdominal aortic aneurysm initially underwent distal gastrectomy with D2 dissection. Histological examination revealed tub2 and T2N1M0 stage IIA. One month later, endovascular aneurysm repair was performed...
2024: Case Reports in Oncology
https://read.qxmd.com/read/38455696/pulmonary-artery-aneurysm-associated-with-sarcoidosis-in-a-75-year-old-with-heart-failure-the-challenges-of-diagnosis-and-management
#18
JOURNAL ARTICLE
Isabel Cruz, Rafaela Lopes, Bruno Bragança, Inês Campos, Inês Gonçalves, Rui P Santos, Aurora Andrade
INTRODUCTION: Pulmonary artery aneurysm (PAA) is a rare abnormality of pulmonary vasculature. It can be idiopathic or secondary to various pathologies, frequently with multiple factors leading to its formation. We report the case of a man with concomitant sarcoidosis and PAA. CASE DESCRIPTION: A 75-year-old male with a diagnosis of pulmonary sarcoidosis was referred to the Cardiology department due to heart failure with reduced left ventricular ejection fraction (LVEF)...
2024: European Journal of Case Reports in Internal Medicine
https://read.qxmd.com/read/38454799/nationwide-trends-in-intensive-care-unit-utilization-in-the-elective-endovascular-treatment-of-unruptured-intracranial-aneurysms
#19
JOURNAL ARTICLE
Varun Padmanaban, William J Benjamin, Austin Cohrs, Francis J Jareczek, Sprague W Hazard, Joseph Christopher Zacko, Ephraim W Church, Scott D Simon, Kevin M Cockroft, Douglas L Leslie, David Andrew Wilkinson
OBJECTIVE: Multiple studies suggest routine post-operative intensive care unit (ICU) stays after endovascular treatment (EVT) of unruptured intracranial aneurysms (UIAs) is unnecessary, though rates of ICU utilization nationwide are unknown. We aim to evaluate rates and characteristics of ICU utilization in patients undergoing elective endovascular repair of UIAs. METHODS: This is a retrospective cohort study utilizing a nationwide private-payer database in the United States to evaluate the ICU utilization in patients undergoing elective endovascular repair of UIAs between 2005 and 2019...
March 7, 2024: Interventional Neuroradiology
https://read.qxmd.com/read/38454770/a-case-report-of-diffuse-type-tenosynovial-giant-cell-tumor-as-a-calcaneus-mass-a-diagnostic-challenge
#20
Zheng Wang, Xiang Wang, Shutong Zhang
INTRODUCTION: Diffuse-type tenosynovial giant cell tumor (D-TGCT) originates from synovial cells in tendon sheaths and bursae and rarely presents as a calcaneal mass. CASE REPORT: A 44-year-old female presented with left heel pain that had persisted for over a year and had worsened over the past six months. A mass was found on the Lateral radiograph of the calcaneus, which was diagnosed as an aneurysmal bone cyst. Non-contrast computed tomography (CT) and magnetic resonance imaging (MRI)diagnosed a benign tumor...
March 7, 2024: Current medical imaging
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