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Preprint ARTICLE | doi:10.20944/preprints201609.0002.v1

Fractal Dimension Based Carotid Plaque Characterization from Three-Dimensional Ultrasound Images

Ran Zhou, Mingyue Ding, Yongkang Luo, Aaron Fenster

Subject: Engineering, Biomedical & Chemical Engineering Keywords: fractal dimension; carotid plaque characterization; three dimensional ultrasound; an evaluation of the vulnerability of the plaques

Online: 1 September 2016 (10:48:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0577.v1

Atherosclerotic Plaque Fissuration and Clinical Outcomes in Pre-Diabetics vs. Normoglycemics Patients Affected by Asymptomatic Significant Carotid Artery Stenosis at 2 Years of Follow-Up: Role of MIcRoRNAs Modulation. The ATIMIR Study

Celestino Sardu, Piero Modugno, Gaetano Castellano, Lucia Scisciola, Michelangela Barbieri, Lella Petrella, Mara Fanelli, Gabriella Macchia, Eugenio Caradonna, Massimo Massetti, Giuseppe Paolisso, Raffaele Marfella

Subject: Medicine & Pharmacology, Allergology Keywords: carotid atherosclerosis; pre-diabetes mellitus; microRNAs; inflammation; metformin therapy

Online: 25 February 2021 (11:43:02 CET)

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BACKGROUND AND PURPOSE—Atherosclerotic plaque instability and rupture in patients with asymptomatic carotid artery stenosis (ACAS) is a leading cause of major adverse cardiac events (MACE). This could be mainly evidenced in patients with pre-diabetes. Indeed, the altered glucose homeostasis and insulin resistance could cause over-inflammation of atherosclerotic plaque, favoring its conversion to unstable phenotype with rupture and MACE. Notably, the metformin therapy reducing the metabolic distress and the inflammatory burden, could lead to reduction of MACE in ACAS patients with pre-diabetes. In this setting, microRNAs (miRs) could be used as molecular biomarkers of atherosclerosis progression, plaque rupture and worse prognosis in normoglycemics (NG) vs. pre-diabetics metformin users (PDMU) vs. pre-diabetics non metformin users (PDNMU). However, the aim of our study was to investigate a wide miRNA panel in peripheral blood exosomes from patients with ACAS divided in NG vs. PDMU vs. PDNMU, and to associate the circulating miRNA expression profiles with MACE at 2 years of follow-up after endarterectomy. METHODS—The study included 234 patients with ACAS divided in NG (n 125), PDNMU (n 73) and PDMU (n 36). The miRs’ expression profiles of circulating exosomes were determined at baseline and at 2 years of follow-up by Affymetrix microarrays from plasma samples of the patients from any study cohort. Then we collected and analyzed MACE at 2 years of follow-up in NG vs. PDMU vs. PDNMU. RESULTS—prediabetics vs. NG had over-inflammation (p<0.05) and over expressed miR 24 and miR 27 at baseline. At 2 years of follow-up PDNMU vs. NG, PDMU vs. NG and PDNMU vs. PDMU over-expressed inflammatory markers and miR 24, miR 27, miR 100, miR 126 and miR 133 (p<0.05). Finally, at follow-up end we observed a significant difference about MACE comparing PDNMU vs. NG (n 27 (36.9%) vs. n 8 (6.4%); p<0.05), PDNMU vs. PDMU (n 27 (36.9%) vs. n 6 (16.6%); p <0.05), and PDMU vs. NG (n 6 (16.6%) vs. n 8 (6.4%); p<0.05). Admission glucose values (HR 1.020, CI 95% [1.001-1.038], p 0.029), atheromatous carotid plaque (HR 5.373, CI 95% [1.251-11.079], p 0.024), and miR 24 (HR 3.842, CI 95% [1.768-19.222], p 0.011) predicted MACE at 2 years of follow-up. CONCLUSIONS—Specific circulating miRs could be over-expressed in pre-diabetics and specifically in PDNMU vs. PDMU after endarterectomy. MiR24, hyperglycemia and atheromatous plaque could predict MACE at 2 years of follow-up.

Preprint ARTICLE | doi:10.20944/preprints201910.0230.v1

Quantification of Carotid Intraplaque Hemorrhage: Comparison between Manual Segmentation and Semi-Automatic Segmentation on Magnetization-Prepared Rapid Acquisition with Gradient-Echo Sequences

Young Ju Song, Hyo Sung Kwak, Gyung Ho Chung, Seongil Jo

Subject: Medicine & Pharmacology, Clinical Neurology Keywords: carotid intraplaque hemorrhage; carotid atherosclerosis; semi-automatic quantification; MPRAGE

Online: 20 October 2019 (01:39:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0004.v1

Use of Micropatterned Thin Film Nitinol in Carotid Stents to Augment Embolic Protection

Mahdis Shayan, Brian T. Jankowitz, Puneeth Shridhar, Youngjae Chun

Subject: Engineering, Biomedical & Chemical Engineering Keywords: thin film nitinol; carotid artery; micro mesh stent; micropatterning

Online: 1 November 2016 (06:54:40 CET)

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Preprint CASE REPORT | doi:10.20944/preprints202205.0005.v1

Neuroendocrine Carcinoma at the Sphenoid Sinus Misdiagnosed as an Olfactory Neuroblastoma and Resected Using a High-Flow Bypass

Kosuke Takabayashi, Takafumi Shindo, Tomoki Kikuchi, Katsumi Takizawa

Subject: Medicine & Pharmacology, Other Keywords: skull base; high-flow bypass; sustentacular cell; endoscopic sinus surgery; internal carotid artery

Online: 4 May 2022 (12:22:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202206.0230.v1

How the First Year of the COVID-19 Pandemic Impacted Patients’ Care in the Vascular Surgery Divisions of the Southern Regions of the Italian Peninsula

Eugenio Martelli, Giovanni Sotgiu, Laura Saderi, Massimo Federici, Giuseppe Sangiorgi, Matilde Zamboni, Allegra Rosa Martelli, Giancarlo Accarino, Giuseppe Bianco, Francesco Bonanno, Umberto Marcello Bracale, Enrico Cappello, Giovanni Cioffi, Giovanni Colacchio, Adolfo Crinisio, Salvatore De Vivo, Carlo Patrizio Dionisi, Loris Flora, Giovanni Impedovo, Francesco Intrieri, Luca Iorio, Gabriele Maritati, Piero Modugno, Mario Monaco, Giuseppe Natalicchio, Vincenzo Palazzo, Fernando Petrosino, Francesco Pompeo, Raffaele Pulli, Davide Razzano, Maurizio Ruggero Ruggieri, Carlo Ruotolo, Paolo Sangiuolo, Gennaro Vigliotti, Pietro Volpe, Antonella Biello, Pietro Boggia, Michelangelo Boschetti, Enrico Maria Centritto, Flavia Condò, Lucia Cucciolillo, Amodio Salvatore D'Amodio, Mario De Laurentis, Claudio Desantis, Daniela Di Lella, Giovanni Di Nardo, Angelo Disabato, Ilaria Ficarelli, Angelo Gasparre, Antonio Nicola Giordano, Alessandro Luongo, Mafalda Massara, Vincenzo Molinari, Andrea Padricelli, Marco Panagrosso, Anna Petrone, Serena Pisanello, Roberto Prunella, Michele Tedesco, Alberto Maria Settembrini

Subject: Medicine & Pharmacology, Other Keywords: COVID-19; carotid stenosis; abdominal aortic aneurysm; chronic limb-threatening ischemia; amputation; deep venous thrombosis

Online: 16 June 2022 (04:40:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0165.v1

The Importance and Effectiveness of Carotid Endarterectomy in Ischaemic Stroke or TIA with Significant Carotid Stenosis

Muhammad Shohel Almamun, Mobashshereen Khan

Subject: Medicine & Pharmacology, Clinical Neurology Keywords: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leuco encephalopathy (CADASIL); Carotid Endarterectomy (CEA); Modified Rankin Scale (MRS); Computed Tomography(CT); Tissue plasminogen activator (tPA); Diffusion weighted Imaging (DWI); Recognition of Stroke in the Emergency Room (ROSIER) scale; Magnetic resonance Imaging (MRI); Internal Carotid Artery (ICA)

Online: 26 February 2018 (11:46:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202210.0314.v1

Evaluation of Different Cannulation Strategies for Aortic Arch Surgery Using a Cardiovascular Numerical Simulator

Beatrice De Lazzari, Massimo Capoccia, Roberto Badagliacca, Claudio De Lazzari

Subject: Engineering, Biomedical & Chemical Engineering Keywords: Aortic surgery; Aortic arch; Three-way cannulation approach; Carotid artery perfusion; Pressure-volume loop; Lumped parameter model; Software simulation; Cardiovascular modelling.; CARDIOSIM

Online: 20 October 2022 (14:19:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0491.v1

The Relationship between Carotid Intima-Media Thickness and Serum Secreted Frizzled-Related Protein-4 and Dipeptidyl Peptidase-4 in the Diabetic Patients with Cardiovascular Diseases

Abdulhalim Senyigit, Hafize Uzun, Ilhami Gultepe, Dildar Konukoglu

Subject: Medicine & Pharmacology, General Medical Research Keywords: type 2 diabetes mellitus; carotid intima-media thickness; glucagon-like peptide-1; dipeptidyl peptidase-4; clusterin; amylin; secreted Frizzled-related protein-4

Online: 29 August 2018 (09:38:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0400.v1

Effects of Pulsatile Flow Rate and Shunt Ratio in Bifurcated Distal Arteries on Hemodynamic Characteristics Involved in Two Patient-Specific Internal Carotid Artery Sidewall Aneurysms: A Numerical Study

Hang Yi, Mark Johnson, Luke C. Bramlage, Ludwig Bryan, Zifeng Yang

Subject: Biology, Physiology Keywords: Internal carotid artery sidewall aneurysm (ICASA); hemodynamic behaviors; computational fluid dynamics (CFD); pulsatile flow rate (PFR); bifurcated shunt ratio; wall shear stress (WSS); oscillatory shear index (OSI); time-averaged pressure (TAP)

Online: 30 May 2022 (11:38:31 CEST)

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