Search results for "Aortic"

Aneurismas complejos de la aorta abdominal: cirugía abierta frente a exclusión endovascular avanzada. Estudio comparativo.

2015

Justificación del estudio e hipótesis de trabajo: la enfermedad aneurismática de la aorta se estima que afecta al 2%-7% de los varones mayores de 60 años. Dichas estimaciones, extrapoladas a la población de España, se corresponderían con 140.000-350.000 personas portadoras de una aneurisma de aorta abdominal. En siete de cada cien personas acaece la rotura del aneurisma, siendo actualmente la décima causa de muerte en varones mayores de 55 años. En aquellos pacientes de alto riesgo para la cirugía abierta en los que la exclusión endovascular con endoprótesis de sellado infrarrenal está contraindicada por mala calidad del cuello aneurismático, la exclusión endovascular avanzada con endopróte…

Relationship of choroidal thickness with pulsatile hemodynamics in essential hypertensive patients

2021

Controversy exists about the association of choroidal thickness (CTh) with blood pressure (BP) values. There is some evidence suggesting that central hemodynamics changes are associated with microvascular disease. Our study was aimed to assess the relationships between CTh and clinic and 24-h BP and between CTh and estimated 24-h aortic pulse pressure (aPP), 24-h aortic systolic BP (aSBP), and 24-h aortic augmentation index (aAIx) in a group of hypertensive patients. We enrolled 158 hypertensive subjects (mean age 48 ± 13 years) all of which underwent evaluation of the choroidal district by Swept-Source optical coherence tomography (SS-OCT) and 24-h BP monitoring, in order to measure periph…

Livelli ridotti di cistatina C nell’infarto miocardico acuto vs. angina instabile, aneurisma aortico e controlli normali

2001

Coartazione aortica in tomografia computerizzata multistrato

2016

Aortic coarctation (CA) is a congenital focal narrowing of the aortic lumen forming part of an arteriopathy generalized (5-8% of all congenital heart diseases). Classically distinct in a predeterminal and postductal form, at present this classification is not used much. Clinical manifestations of affected patients range from systolic hypertension of the originating vessels a upstream of the part coarctated to the hypotension dependent on those downstream and strictly depend on the degree of stenosis.

A Non-Local Mode-I Cohesive Model for Ascending Thoracic Aorta Dissections (ATAD)

2018

This paper presents a non-local interface mechanical model to describe aortic dissection. In this regard, the mode-I debonding problem based on a cohesive zone modeling is endowed with non-local terms to include long-range interactions that are present in multi-layered biological tissue. Such non-local effects are related to the collagen fibers that transmit forces between non-adjacent elements. Numerical simulations are provided with different values of the non-local parameters in order to show the effect of the non-locality during the debonding processes.

Extracellular matrix fiber microarchitecture is region-specific in bicuspid aortic valve-associated ascending aortopathy

2016

Abstract Objective Ascending thoracic aortic aneurysm (ATAA) in patients with bicuspid aortic valve (BAV) commonly dilate asymmetrically compared with patients with tricuspid aortic valve (TAV). This discrepancy in aneurysm geometry led us to hypothesize that microarchitectural differences underlie the observed asymmetric dilatation pattern. The purpose of this study was to characterize the microarchitectural distinctions of the extracellular matrix of the 2 phenotypes with a focus on the proportion of radially oriented elastin and collagen fibers in different circumferential aortic regions. Methods Aortic tissue rings were obtained just distal to the sinotubular junction from patients with…

The Abdominal Compartment Syndrome (ACS) after Abdominal Aortic Aneurysm (AAA) open repair

2009

Objective: The abdominal compartment syndrome (ACS) is a ‘condition in which increased tissue pressure in a confined anatomic space, causes decreased blood flow leading to ischaemia and dysfunction and leading to permanent impairment of function’. Methods: Between June 2007 and June 2008 we treated surgically 23 cases of AAA (14 in election and nine in emergency), with indirect intra- abdominal pressure (IAP) monitoring (intra-vescical catheter). Mean age was 68 (64–84) years, 19 males and 4 females. Mean transverse diameter was 6.2 cm (5.5–9.0). Preoperative diagnostic procedure was ultrasound and tomography when possible. All patients were managed in hypotensive hemostasis (restricting fl…

A girl with inverted triplication of chromosome 3q25.3 → q29 and multiple congenital anomalies consistent with 3q duplication syndrome

2005

We report a newborn girl with intrachromosomal triplication of 3q25.3 --> q29 (mosaicism) who died at the age of 3.5 weeks due to her malformations. She demonstrated disproportionate short stature with short limbs, a prominent and hairy forehead, thick eyebrows, synophrys, small upturned nose, full cheeks, micrognathia, and low set malformed and posteriorly rotated ears, short and webbed neck, hydrocephalus, Dandy-Walker malformation, spina bifida, complex heart defect (ventricular and atrial septal defect, malrotation, and interrupted aortic arch), omphalocele, polycystic kidneys, postaxial polydactyly of left hand, and generalized hirsutism; all signs have been associated with the dup(3q)…

The Endovascular Management of an Iatrogenic Superior Gluteal Artery Rupture Following Bone Marrow Biopsy

2017

We herein report an uncommon case of a life-threatening retroperitoneal hematoma after a bone marrow biopsy. Two hours after iliac crest bone harvesting, the patient experienced syncope and severe hypotension. Urgent contrast-enhanced computed tomography demonstrated extravasation from the superior gluteal artery. Transcatheter coil embolization was performed successfully, without complications. Life-threatening complications caused by retroperitoneal bleeding after bone marrow biopsy are very rare. There are few reports on the use of endovascular treatment in the management of life-threatening hemorrhagic complications after bone marrow biopsy.

A Multicenter Experience of Three Different "Iliac Branched" Stent Grafts for the Treatment of Aorto-Iliac And/Or Iliac Aneurysms

2023

Background: The aim of study was to assess the safety and effectiveness of 3 different commercial iliac branch devices (IBDs): the Zenith Branch Iliac Endovascular Graft; the Gore Excluder Iliac Branch System and the E-liac Stent Graft System for the treatment of aorto-iliac or iliac aneurysms. Methods: From January 2017 to February 2020, a retrospective reviewed was conducted on a total of 96 patients. Primary endpoint was IBD instability rate at 24 months. Secondary endpoints included onset of any endoleaks, buttock claudication, IBD-related reintervention and all-death rates, postoperative acute kidney, and changes in maximum diameter from baseline of the aortic aneurysmal sac. Results: …