Search results for "ARTERIAL"

RELATIONSHIP BETWEEN OXIDATIVE STRESS AND AORTIC STIFFNESS IN HYPERTENSIVE PATIENTS WITH CHRONIC KIDNEY DISEASE

2011

Tetrachlorodecaoxide Improves the Oxygenation Status of Multicellular Tumor Spheroids

1986

Insufficient O2 supply to solid tumors has been recognized since many years to be a crucial problem in cancer therapy. Hypoxia and anoxia may increase the resistance of tumor cells to certain antiproliferative drugs or to ionizing radiation. Numerous approaches to overcoming this problem have been reported in the literature. Efforts have been made in mainly two basic directions: (1) the development of therapeutic means which are particularly efficient in hypoxic and nutrient-deprived tissue areas or which are at least independent of the tissue oxygenation, and (2) the development of methods for improving the oxygenation status of solid tumors. Among the former approaches, the cytotoxicity o…

Response of tumour red blood cell flux to hyperthermia and/or hyperglycaemia.

1989

Laser Doppler flowmetry has been applied to subepidermal rat tumours during localized ultrasound hyperthermia and/or moderate, short-term hyperglycaemia. Blood glucose levels were elevated 4-fold by continuous i.v. infusion of D-glucose (4.8 g/kg/60 min). To determine whether the effects of hyperglycaemia on tumour blood flow involved increased rates of glycolysis and lactic acid production, galactose, a sugar not metabolized by the tumour, was administered using the same dose schedule. Hyperglycaemia was accompanied by a 3-fold increase in blood lactate levels and a slight hypervolaemic haemodilution without any significant systematic changes of the arterial blood pressure or respiratory b…

Reentry devices for chronic arterial occlusions.

2019

Molte Palermo. Temi

2019

Nel tema delle incompiute idee di città possibili si riconoscerà il paradigma connotativo dello stesso divenire di Palermo, lungo un percorso millenario di processi di trasformazione nessuno dei quali portato a compimento, in virtù di quel valore distintivo di exemplum che non necessita di ulteriori e conclusive dimostrazioni. Il corso della storia, del resto, ha imposto a Palermo il ciclico riproporsi di destini interrotti. Tale si rilevò l’invenzione della città capitale, quella della “quadratura geometrica e della croce di strade” sovrimpressa a quella archetipica e fondativa della Pan-ormos scambiatrice. E l’incompiutezza sarà il tratto distintivo della città dei rettifili stradali otto…

The metabolic syndrome-arterial stiffness relationship in patients with ischaemic stroke: role of inflammation

2008

Prospective comparison of cardiopulmonary events during minilaparoscopy and colonoscopy under conscious sedation.

2005

BACKGROUND AND STUDY AIMS Cardiorespiratory parameters were examined throughout diagnostic minilaparoscopy procedures. The same parameters were analyzed during colonoscopy, and the data were compared. PATIENTS AND METHODS Sixty-five consecutive unselected patients undergoing minilaparoscopy (group 1: ASA I, n = 34; group 2: ASA II/III, n = 31) and 61 consecutive unselected patients undergoing colonoscopy (group 3: ASA I, n = 31; group 4: ASA II/III, n = 30) were included. Oxygen saturation (Sao (2)), heart rate (HR) and mean arterial pressure (RRm) were measured continuously, and 12-lead electrocardiography (ECG) recordings were made at specific times during each procedure. RESULTS Minor di…

Transnasal Humidified Rapid Insufflation Ventilatory Exchange With Nasopharyngeal Airway Facilitates Apneic Oxygenation: A Randomized Clinical Noninf…

2020

Background: Transnasal humidified rapid insufflation ventilatory exchange (THRIVE) was used to extend the safe apnea time. However, THRIVE is only effective in patients with airway opening. Nasopharyngeal airway (NPA) is a simple device that can help to keep airway opening. This study aimed to investigate the noninferiority of NPA to jaw thrust for airway opening during anesthesia-induced apnea.Methods: This was a prospective randomized single-blinded noninferiority clinical trial on the use of THRIVE in patients with anesthesia-induced apnea. The participants were randomly allocated to receive NPA or jaw thrust. The primary outcomes were PaO2 and PaCO2 at 20 min after apnea, with noninferi…

Papel del sistema IL-11 en la Hipertensión Pulmonar Arterial y en la Hipertensión Pulmonar asociada a Enfermedades Pulmonares Crónicas

2021

Introducción La hipertensión arterial pulmonar idiopática (HAP) (clase 1) y la hipertensión pulmonar (HP) asociada a la fibrosis pulmonar idiopática (FPI) (grupo 3) son enfermedades vasculares graves con una mortalidad elevada. La evidencia reciente indica que el sistema IL-11 podría estar involucrado en HAP y HP-FPI ya que hallazgos previos sugieren que la IL-11 tiene el potencial de inducir proliferación celular, migración, inflamación y fibrosis, procesos compartidos en la HP. Por tanto, el objetivo de la presente tesis es evaluar el papel del sistema IL-11 en la HP-FPI y en la HPA idiopática. Métodos La expresión de IL-11 e IL-11Ra fueron analizados mediante ELISA e inmunohistoquímica e…

Large diurnal variation of intraocular pressure in open angle glaucoma in subjects with type A behaviour pattern

2014

Aim : To evaluate the possible causes of the greater perimetric damage found in OAG subjects with type A behaviour and the possible role of psycho-physiological stress. Materials and methods : 80 patients with OAG, 44 women and 36 men, 40 with type A behaviour and 40 with type B studied with the Type A/B Personality Questionnaire (A modified version of the Jenkins Activity Survey), underwent a complete ophthalmologic examination consisting of bio-microscopy, tonometry and daily tonometric curve, examination of the visual field by means of Octopus 1-2-3 computerised perimeter and its assessment with the Glaucoma Staging System 2 (GSS2), morphological monitoring of the Retinal Nerve Fibre Lay…