Search results for "PWV"
showing 9 items of 9 documents
Acute arterial stiffness, testosterone and force production responses and recovery from different combined strength and endurance loading models
2017
Much of the differences between strength (S) and endurance (E) exercise can be attributed to the contrasting endocrinological and molecular responses between the two exercise modes. From the current literature, it seems that aortic arterial stiffness, a reliable cardiovascular mortality predictor, also responds differently to these two modes of exercise. It is thus important to understand the acute responses that combined exercise loads may invoke, as acute responses are known to drive chronic adaptations. Furthermore, testosterone has been cited as a key hormone in cardiovascular protection and its effects may mediate blood flow and hemodynamics. Currently, there are very few studies inves…
Measurements of cardiac Pre-Ejection period using a combo PPG-ECG system
2015
The extraction of biomedical parameters, for early disease detection, is assuming today an ever increasing and fundamental importance. In particular, in the cardiologic field, the preejection period (PEP) is the duration of the iso-volumetric left ventricle contraction until the aortic valve opening. This parameter is a non-constant additive delay, which rapidly changes in response to stress, emotion and physical effort. To estimate this period, several wearable electronics devices have been developed in literature, and among them the Impedance Cardiogram equipment is the most used. However, these systems are often expensive and bulky. In this paper, we propose a cost-effective and easy to …
Endothelial function, adipokine serum levels and white matter hyperintesities in subjects with diabetic foot syndrome.
2019
Abstract Context No study has analyzed the prevalence of white matter hyperintensities (WMHs) in subjects with diabetic foot syndrome (DFS) and their relationship to adipokine serum levels and indexes of endothelial and cognitive performance. Objective To evaluate omentin and vaspin serum levels and the prevalence of WMHs in subjects with DFS and to analyze their relationship with other endothelial, arterial stiffness, and cognitive functions. Design Case-control study enrolling 40 subjects with DFS, 40 diabetic subjects without foot complications, 40 controls with foot lesions without diabetes, and 40 patients without diabetes mellitus. Main Outcome Measures Pulse wave velocity (PWV), augm…
CORRELATIONS BETWEEN NON INVASIVE RENAL INDEX AND MARKERS OF ATHEROSCLEROSIS IN LUPUS PATIENTS.
2015
Objective: Recent data suggest that renal haemodynamic parameters obtained by duplex Doppler sonography, especially the intrarenal resistive index (RI), may be associated with systemic vascular changes in some groups of patients. However, conflicting data exist about the relationship between aortic stiffness and RI in autoimmune disease, like systemic lupus The aim of this study was to evaluate the relationship between RI and arterial stiffness, assessed by aortic pulse wave velocity (aPWV), and carotid atherosclerosis, evaluated by intimal medial thickness measurement(IMT) in patients with SLE. Design and method: Cross-sectional study. We enrolled 39 SLE subjects (mean age 39 years). Each …
Arterial stiffness indexes in acute ischemic stroke: Relationship with stroke subtype
2010
INTRODUCTION: No study has evaluated both arterial stiffness indexes (PWV and Aix) in patients with an acute cerebrovascular event. The aim of our study was to evaluate arterial stiffness indexes in subjects with acute ischemic stroke and to evaluate the relationship between these indexes and other clinical and laboratory variables. MATERIALS AND METHODS: We enrolled all consecutive patients with a diagnosis of acute ischemic stroke admitted to the Internal Medicine Department at the University of Palermo between November 2006 and January 2009, and hospitalized control patients without a diagnosis of acute ischemic stroke. The type of acute ischemic stroke was classified according to the TO…
UTILITÀ DI UN BASSO CUT-OFF DI INDICE DI RESISTENZA INTRARENALE NEL PREDIRE ALTERAZIONI VASCOLARI SISTEMICHE PRECOCI IN SOGGETTI CON IPERTENSIONE ART…
2014
Studi recenti mostrano come l’indice di resistenza intraparenchimale renale (IR), classicamente considerato espressione di resistenza vascolare renale, possa avere un importante ruolo quale marker di alterazioni vascolari sistemiche. Il valore soglia di IR il più spesso utilizzato per identificare pazienti con maggiore probabilità di danno d’organo e di mortalità è stato 0.70. Non è stato tuttavia verificato se un cut-off più basso abbia una maggiore capacità di identificare alterazioni vascolari sistemiche subcliniche. Scopo del nostro studio è pertanto quello di determinare, in soggetti con ipertensione arteriosa essenziale (EH), il valore di IR renale che meglio predica l’esistenza di un…
FATTORI ASSOCIATI ALLA DISCORDANZA TRA ALTERAZIONI DELLA PULSE WAVE VELOCITY AORTICA E AUMENTO DELLO SPESSORE MIO-INTIMALE CAROTIDEO IN SOGGETTI IPER…
2014
Numerosi studi hanno dimostrato come lo spessore mio-intimale carotideo (IMTc), valutato mediante eco-color-Doppler, sia un importante marcatore di danno d’organo subclinico nonché espressione di alterazione vascolare sistemica. Recenti dati, d’altro canto, hanno evidenziato come anche la pulse wave velocity aortica (PWVa), nota misura di stiffness arteriosa, sia indice di precoce danno vasale. Pur dipendendo parzialmente da comuni fattori patogenetici, IMTc e PWVa non hanno un significato clinico del tutto sovrapponibile e risultano non raramente discordanti tra loro. Appare pertanto interessante identificare quali siano i fattori associati al divergente comportamento di tali parametri. So…
Immune-inflammatory markers and arterial stiffness indexes in subjects with acute ischemic stroke with and without metabolic syndrome.
2014
Objective: The aim of our study was to evaluate the associations between arterial stiffness indexes and immune-inflammatory markers in subjects with acute ischemic stroke with and without metabolic syndrome. Materials/Methods: We enrolled 130 patients with acute ischemic stroke and metabolic syndrome, 127 patients with acute ischemic stroke without metabolic syndrome and 120 control subjects without acute stroke. Applanation tonometry was used to record the augmentation index (Aix) and pulse wave velocity (PWV). We also evaluated plasma levels of C-reactive protein (CRP), Interleukin-1beta (IL-1β), tumor necrosis factor-alpha (TNF-α), Interleukin-6 (IL-6) and Interleukin-10 (IL-10), E-selec…
Evaluación cardiometabólica y adrenérgica en el sujeto obeso sano joven
2021
ANTECEDENTES: La obesidad se define como un exceso de peso del individuo, entendiendo como tal el exceso de contenido graso en el cuerpo. Actualmente la OMS sitúa a la obesidad como la epidemia del siglo XXI. La obesidad incrementa el riesgo de diabetes, hipertensión, enfermedad coronaria, ictus y ciertos tipos de cáncer. Independientemente del mecanismo primario responsable de la obesidad existen un serie de mecanismos que se encuentran interrelacionados y que llevan a la aparición de: I) Alteraciones metabólicas del metabolismo hidrocarbonado y lipídico, con el consiguiente incremento del riesgo de desarrollar diabetes mellitus tipo 2, II) alteraciones precoces en el sistema cardiovascula…