keyword
https://read.qxmd.com/read/38459858/-surgical-treatment-for-ruptured-thoracoabdominal-aneurysm-following-descending-aortic-replacement-with-double-barrel-anastomosis
#21
JOURNAL ARTICLE
Shuichi Okada, Masahiko Ezure, Yutaka Hasegawa, Yasuyuki Yamada, Joji Hoshino, Hiroyuki Morishita, Masahiro Seki, Kazuki Tamura, Takashi Soda
A 75-year-old woman was diagnosed with type B acute aortic dissection 14 years ago and 3-channeled aortic dissection 7 years ago. She received total arch replacement 6 years ago and descending aortic replacement with double barrel anastomosis technique for distal anastomosis 5 years ago. Computed tomography( CT) revealed giant thyroid tumor and thoracoabdominal aortic aneurysm( 58 mm in diameter). She suffered from back pain during her follow-up period. CT revealed ruptured thoracoabdominal aortic aneurysm...
February 2024: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://read.qxmd.com/read/38457932/patient-specific-analysis-of-bicuspid-aortic-valve-hemodynamics-using-a-fully-coupled-fluid-structure-interaction-model
#22
JOURNAL ARTICLE
Tongran Qin, Wenbin Mao, Andrés Caballero, Norihiko Kamioka, Stamatios Lerakis, Santiago Lain, John Elefteriades, Liang Liang, Wei Sun
Bicuspid aortic valve (BAV), the most common congenital heart disease, is prone to develop significant valvular dysfunction and aortic wall abnormalities such as ascending aortic aneurysm. Growing evidence has suggested that abnormal BAV hemodynamics could contribute to disease progression. In order to investigate BAV hemodynamics, we performed 3D patient-specific fluid-structure interaction (FSI) simulations with fully coupled blood flow dynamics and valve motion throughout the cardiac cycle. Results showed that the hemodynamics during systole can be characterized by a systolic jet and two counter-rotating recirculation vortices...
February 19, 2024: Computers in Biology and Medicine
https://read.qxmd.com/read/38457311/calprotectin-as-a-new-inflammatory-marker-of-abdominal-aortic-aneurysm-a-pilot-study
#23
JOURNAL ARTICLE
Emma Plana, Julia Oto, Raquel Herranz, Pilar Medina, Fernando Cana, Manuel Miralles
INTRODUCTION: Abdominal aortic aneurysm (AAA) is a relevant clinical problem due to the risk of rupture of progressively dilated infrarenal aorta. It is characterized by degradation of elastic fibers, extracellular matrix, and inflammation of the arterial wall. Though neutrophil infiltration is a known feature of AAA, markers of neutrophil activation are scarcely analyzed; hence, the main objective of this study. METHODS: Plasma levels of main neutrophil activation markers were quantified in patients with AAA and a double control group (CTL) formed by healthy volunteers (HV) and patients with severe atherosclerosis submitted for carotid endarterectomy (CE)...
March 8, 2024: Vascular Medicine
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
#24
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/38452485/thoracic-endovascular-repair-of-descending-thoracic-aorta-aneurysm-using-thoracic-stent-graft-in-a-challenging-complex-patient-an-innovative-access-technique-during-an-emergency-using-a-mini-thoracotomy-approach
#25
JOURNAL ARTICLE
Abdulmajeed Altoijry
OBJECTIVES: Repairing thoracic aortic aneurysms with endovascular aortic repair (TEVAR) is a safe and minimally invasive method with low morbidity and short postoperative recovery. We developed a novel method to treat descending thoracic aortic aneurysms using a mini-thoracotomy approach in complex patients with difficult access. METHODS: A 56-year-old male patient presented with a 3-day history of chest pain. His past surgical history included infrarenal aortic ligation and right axillobifemoral bypass...
March 7, 2024: Vascular
https://read.qxmd.com/read/38451189/multi-energy-low-kiloelectron-volt-versus-single-energy-low-kilovolt-images-for-endoleak-detection-at-ct-angiography-of-the-aorta
#26
RANDOMIZED CONTROLLED TRIAL
Anna Landsmann, Thomas Sartoretti, Victor Mergen, Lisa Jungblut, Matthias Eberhard, Adrian Kobe, Hatem Alkadhi, André Euler
Purpose To compare image quality, diagnostic performance, and conspicuity between single-energy and multi-energy images for endoleak detection at CT angiography (CTA) after endovascular aortic repair (EVAR). Materials and Methods In this single-center prospective randomized controlled trial, individuals undergoing CTA after EVAR between August 2020 and May 2022 were allocated to imaging using either low-kilovolt single-energy images (SEI; 80 kV, group A) or low-kiloelectron volt virtual monoenergetic images (VMI) at 40 and 50 keV from multi-energy CT (80/Sn150 kV, group B)...
April 2024: Radiology. Cardiothoracic imaging
https://read.qxmd.com/read/38445064/successful-surgical-management-of-a-suspected-high-flow-inferior-mesenteric-artery-aneurysm-in-a-patient-with-chronic-celiac-and-superior-mesenteric-artery-occlusions
#27
Hannah Dreksler, Sudhir K Nagpal, George Hajjar, Derek J Roberts
Inferior mesenteric artery (IMA) aneurysms account for approximately 1% of visceral artery aneurysms and can occur secondary to high flow because of occlusive disease in other mesenteric arteries. We describe the case of a 79-year-old man who presented with a 3.3-cm IMA aneurysm and chronic total occlusions of the celiac artery and superior mesenteric artery (SMA). After an unsuccessful attempt at endovascular SMA recanalization, he underwent an uncomplicated retrograde aorta to SMA bypass and antegrade aorta to IMA bypass...
April 2024: Journal of Vascular Surgery Cases and Innovative Techniques
https://read.qxmd.com/read/38438692/patient-specific-haemodynamic-analysis-of-virtual-grafting-strategies-in-type-b-aortic-dissection-impact-of-compliance-mismatch
#28
JOURNAL ARTICLE
Louis Girardin, Catriona Stokes, Myat Soe Thet, Aung Ye Oo, Stavroula Balabani, Vanessa Díaz-Zuccarini
INTRODUCTION: Compliance mismatch between the aortic wall and Dacron Grafts is a clinical problem concerning aortic haemodynamics and morphological degeneration. The aortic stiffness introduced by grafts can lead to an increased left ventricular (LV) afterload. This study quantifies the impact of compliance mismatch by virtually testing different Type-B aortic dissection (TBAD) surgical grafting strategies in patient-specific, compliant computational fluid dynamics (CFD) simulations. MATERIALS AND METHODS: A post-operative case of TBAD was segmented from computed tomography angiography data...
March 4, 2024: Cardiovascular Engineering and Technology
https://read.qxmd.com/read/38435381/height-and-body-surface-area-versus-wall-stress-for-stratification-of-mid-term-outcomes-in-ascending-aortic-aneurysm
#29
JOURNAL ARTICLE
Siavash Zamirpour, Yue Xuan, Zhongjie Wang, Axel Gomez, Joseph R Leach, Dimitrios Mitsouras, David A Saloner, Julius M Guccione, Liang Ge, Elaine E Tseng
OBJECTIVES: Current diameter-based guidelines for ascending thoracic aortic aneurysms (aTAA) do not consistently predict risk of dissection/rupture. ATAA wall stresses may enhance risk stratification independent of diameter. The relation of wall stresses and diameter indexed to height and body surface area (BSA) is unknown. Our objective was to compare aTAA wall stresses with indexed diameters in relation to all-cause mortality at 3.75 years follow-up. METHODS: Finite element analyses were performed in a veteran population with aortas ≥ 4...
April 2024: IJC Heart & Vasculature
https://read.qxmd.com/read/38434788/case-report-computed-tomography-diagnosis-of-an-abdominal-aortic-aneurysm-complicated-with-primary-aortoduodenal-fistula
#30
Chaymae Ziani, Zakariae Missaoui, Khaoula Oukrid, Leila Haddar, Asmae Kasimi, Siham Nasri, Imane Kamaoui, Imane Skiker
Abdominal aortic aneurysm has been described as a rare condition touching 1% of the population over the age of 50 years with a high percentage of mortality. Aneurysms progress in size, causing deadly complications such as ruptures and fistulas. Computed tomography angiography is considered the gold standard imaging exam for the evaluation of abdominal aortic aneurysms and their complications. We report the case of an elderly patient admitted to the emergency room due to recurrent gastrointestinal bleeding. The computed tomography imaging findings were in favor of an abdominal aortic aneurysm complicated with a primary aortoduodenal fistula...
May 2024: Radiology Case Reports
https://read.qxmd.com/read/38434340/blood-flow-effects-in-a-patient-with-a-thoracic-aortic-endovascular-prosthesis
#31
JOURNAL ARTICLE
Juan P Tello, Juan C Velez, Alberto Cadena, Andres Jutinico, Mauricio Pardo, Winston Percybrooks
This work analyzes hemodynamic phenomena within the aorta of two elderly patients and their impact on blood flow behavior, particularly affected by an endovascular prosthesis in one of them (Patient II). Computational Fluid Dynamics (CFD) was utilized for this study, involving measurements of velocity, pressure, and wall shear stress (WSS) at various time points during the third cardiac cycle, at specific positions within two cross sections of the thoracic aorta. The first cross-section (Cross-Section 1, CS1) is located before the initial fluid bifurcation, just before the right subclavian artery...
March 15, 2024: Heliyon
https://read.qxmd.com/read/38433982/open-revascularization-for-chronic-mesenteric-ischemia-in-the-endovascular-era-a-quaternary-center-experience-and-management-algorithm
#32
JOURNAL ARTICLE
Bruno Pagnin Schmid, Vinícius Adorno Gonçalves, Lucas Marcelo Dias Freire, Felipe Nasser, Fábio Hüsemann Menezes
BACKGROUND: Chronic mesenteric ischemia (CMI) is a debilitating disease with a heavy burden on quality of life. Stenting of the superior mesenteric artery (SMA) is the first option for treatment, but there is a lack of consensus defining precise indications for open revascularization (OR). OBJECTIVES: To describe a series of 4 patients with CMI treated with OR and to present an algorithm for the management of this condition. METHODS: Three patients presented with typical intestinal angina and weight loss...
2024: Jornal Vascular Brasileiro
https://read.qxmd.com/read/38431726/predicting-feature-genes-correlated-with-immune-infiltration-in-patients-with-abdominal-aortic-aneurysm-based-on-machine-learning-algorithms
#33
JOURNAL ARTICLE
Yufeng Zhang, Gang Li
Abdominal aortic aneurysm (AAA) is a condition characterized by a pathological and progressive dilatation of the infrarenal abdominal aorta. The exploration of AAA feature genes is crucial for enhancing the prognosis of AAA patients. Microarray datasets of AAA were downloaded from the Gene Expression Omnibus database. A total of 43 upregulated differentially expressed genes (DEGs) and 32 downregulated DEGs were obtained. Function, pathway, disease, and gene set enrichment analyses were performed, in which enrichments were related to inflammation and immune response...
March 2, 2024: Scientific Reports
https://read.qxmd.com/read/38428251/performance-of-fourier-based-activation-function-in-physics-informed-neural-networks-for-patient-specific-cardiovascular-flows
#34
JOURNAL ARTICLE
Arman Aghaee, M Owais Khan
BACKGROUND AND OBJECTIVES: Physics-informed neural networks (PINNs) can be used to inversely model complex physical systems by encoding the governing partial differential equations and training data into the neural network. However, neural networks are known to be biased towards learning less complex functions, called spectral bias. This has important implications in modeling cardiovascular flows, where spatial frequencies can vary substantially across anatomies and pathologies (e.g., aneurysms or stenoses)...
February 22, 2024: Computer Methods and Programs in Biomedicine
https://read.qxmd.com/read/38425616/a-successful-endovascular-treatment-of-massive-hematuria-caused-by-aorto-ureteric-fistula-a-report-of-a-rare-case
#35
Konstantinos G Seretis, Theofanis Papas, Vasileios Papaioannou, Nikolaos Giannakopoulos, Andreas M Lazaris
Fistula formation between the urinary tract and the arterial system is very rare, and usually involves the ureter and the adjacent iliac vessels. Communication of the ureter with the aorta has been described a few times worldwide, and most of them had a fatal outcome. In our case, a 79-year-old man had a history of total cystectomy for malignancy and diversion of both ureters to a single site in the right hypogastrium with the left one crossing over the aorta. He was admitted elsewhere several times for intermittent hematuria, and four months ago the diagnosis of communication of the left ureter with a mycotic aortic pseudoaneurysm was made...
January 2024: Curēus
https://read.qxmd.com/read/38423465/veno-arterial-extracorporeal-membrane-oxygenation-ecmo-va-as-part-of-a-multimodal-approach-for-the-protection-of-spinal-cord-ischemia-in-surgical-repair-of-a-thoracoabdominal-aneurysm
#36
F E Fernández-Suárez, J M López-González, C M Fernández-Vallina, V Cueva-Carril, B M Jiménez Gómez, J García-Menéndez
Spinal cord ischaemia leading to paraplegia or paraparesis is one of the most devastating complications of aortic surgery. The risk of ischaemia is particularly high in repairs involving both the thoracic and abdominal segments, because in these cases blood flow to the spinal arteries can be interrupted. Multimodal protocols have now been developed to reduce the incidence of this complication, and include measures such as cerebrospinal fluid (CSF) drainage, avoidance of hypotension and anaemia, systemic hypothermia, neuromonitoring, maintaining distal perfusion during proximal clamping of the aorta, and reimplantation of intercostal or lumbar arteries, whenever feasible...
February 27, 2024: Revista española de anestesiología y reanimación
https://read.qxmd.com/read/38421538/spectral-computed-tomography-angiography-using-a-gadolinium-based-contrast-agent-for-imaging-of-pathologies-of-the-aorta
#37
JOURNAL ARTICLE
Markus Graf, Felix G Gassert, Alexander W Marka, Florian T Gassert, Sebastian Ziegelmayer, Marcus Makowski, Michael Kallmayer, Jonathan Nadjiri
OBJECTIVES: Especially patients with aortic aneurysms and multiple computed tomography angiographies (CTA) might show medical conditions which oppose the use of iodine-based contrast agents. CTA using monoenergetic reconstructions from dual layer CT and gadolinium (Gd-)based contrast agents might be a feasible alternative in these patients. Therefore, the purpose of this study was to evaluate the feasibility of clinical spectral CTA with a Gd-based contrast agent in patients with aortic aneurysms...
February 29, 2024: International Journal of Cardiovascular Imaging
https://read.qxmd.com/read/38420547/covering-the-intercostal-artery-branching-of-the-adamkiewicz-artery-during-endovascular-aortic-repair-increases-the-risk-of-spinal-cord-ischemia
#38
JOURNAL ARTICLE
Yoshimasa Seike, Tatsuya Nishii, Kazufumi Yoshida, Koki Yokawa, Kenta Masada, Yosuke Inoue, Tetsuya Fukuda, Hitoshi Matsuda
OBJECTIVES: This study aimed to determine the relationship between covering the intercostal artery branching of the Adamkiewicz artery (ICA-AKA) and spinal cord ischemia (SCI) during thoracic endovascular aortic repair (TEVAR). METHODS: Patients who underwent TEVAR from 2008 to 2022 were enrolled. Stent grafts covered the ICA-AKA in 108 patients (covered AKA group) and stent grafts didn't cover the ICA-AKA in 114 patients (uncovered AKA group). The characteristics of 58 patients from each group were matched based on propensity scores...
February 2024: JTCVS open
https://read.qxmd.com/read/38420535/aortic-remodeling-following-hybrid-arch-repair-with-zone-0-to-5-thoracic-endovascular-aortic-repairs-for-complex-arch-and-descending-thoracic-aortic-pathologies
#39
JOURNAL ARTICLE
Irbaz Hameed, Adham Ahmed, Stevan Pupovac, Naiem Nassiri, Roland Assi, Prashanth Vallabhajosyula
OBJECTIVE: For high-risk patients with aortic arch pathology, hybrid aortic arch repair with simultaneous or staged thoracic endovascular repair of the descending aorta may be a viable alternative to open repair. However, data on postintervention aortic remodeling remain limited. We report the short-term outcomes of remodeling of the thoracoabdominal aorta after hybrid arch repair + thoracic endovascular repair. METHODS: All patients undergoing hybrid arch repair with planned zones 0 to 5 thoracic endovascular repair from January 2020 to March 2022 were retrospectively reviewed...
February 2024: JTCVS open
https://read.qxmd.com/read/38415353/prehospital-point-of-care-ultrasound-in-ruptured-abdominal-aortic-aneurysms-a-retrospective-cohort-study
#40
JOURNAL ARTICLE
Signe Voigt Lauridsen, Morten Thingemann Bøtker, Nikolaj Eldrup, Peter Juhl-Olsen
BACKGROUND: Patients with ruptured abdominal aortic aneurysm (rAAA) require immediate vascular treatment to survive. The use of prehospital point-of-care ultrasound (POCUS) may support clinical assessment, correct diagnosis, appropriate triage and reduce system delay. The aim was to study the process of care and outcome in patients receiving prehospital POCUS versus patients not receiving prehospital POCUS in patients with rAAA, ruptured iliac aneurysm or impending aortic rupture. METHODS: We performed a retrospective cohort study in patients diagnosed with rAAA in the Central Denmark Region treated by a prehospital critical care physician from 1 January 2017 to 31 December 2021...
February 28, 2024: Acta Anaesthesiologica Scandinavica
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