نتایج جستجو برای: o2 desaturation

تعداد نتایج: 28286  

Journal: :Journal of neurology, neurosurgery, and psychiatry 1994
S P Gopinath C S Robertson C F Contant C Hayes Z Feldman R K Narayan R G Grossman

Early experience with continuous monitoring of jugular venous oxygen saturation (SjvO2) suggested that this technology might allow early identification of global cerebral ischaemia in patients with severe head injury. The purpose of the present study was to examine the relationship between episodes of jugular venous desaturation and neurological outcome. One hundred and sixteen severely head-in...

Journal: :Stroke 2016
Tae Jung Kim Sang-Bae Ko Han-Gil Jeong Ji Sung Lee Chi Kyung Kim Yerim Kim Kiwoong Nam Heejung Mo Sang Joon An Huimahn Alex Choi Byung-Woo Yoon

BACKGROUND AND PURPOSE Wake-up stroke (WUS) represents a quarter of all ischemic strokes and may be a specific subgroup. Nocturnal desaturation secondary to sleep-disordered breathing is an independent risk factor for stroke, but the association between nocturnal desaturation and WUS remains unclear. We investigated the relationship between nocturnal desaturation using oxygen desaturation index...

Journal: :Respiratory care 2013
Ernesto Crisafulli Andrea Iattoni Elena Venturelli Gherardo Siscaro Claudio Beneventi Alfredo Cesario Enrico M Clini

BACKGROUND Oxygen desaturation during walking can have important consequence on prognosis of COPD patients. However, a standard 6-min walk test (6MWT), useful in detecting desaturation in COPD patients, can be difficult to execute in some settings of COPD management, as in the community healthcare service. We evaluated a new scoring system for the risk of oxygen desaturation during walking in C...

Journal: :Journal of lipid research 1976
N T de Gómez Dumm M J de Alaniz R R Brenner

The effect of epinephrine on the oxidative desaturation of fatty acids by liver microsomal preparations of rats has been studied. Administration of epinephrine (1 mg/kg body weight) produced a significant decrease in desaturation of [l-14C]=linoleic acid to gamma-linolenic acid and of [L-14C]alpha-linolenic acid to actadeca-6,9,12,15-tetraenoic acid 12 hr after the infection. Lower doses produc...

Journal: :The European respiratory journal 1996
J Perk L Perk C Bodén

Physical training in water might be included in a comprehensive pulmonary rehabilitation programme, but data on the feasibility and safety of this technique in chronic obstructive pulmonary disease (COPD) patients are lacking. We studied cardiorespiratory parameters of 20 stable COPD patients (10 with forced expiratory volume in one second (FEV1) < 35% of predicted value, and 10 with FEV1 > or ...

Journal: :Journal of Biological Chemistry 2002

Journal: :Journal of applied physiology 1999
H R Harty D R Corfield R M Schwartzstein L Adams

Multiple factors may contribute to the dyspnea associated with restrictive ventilatory disease (RVD). Simple models that examine specific features of this problem are likely to provide insight into the mechanisms. Previous models of RVD utilizing elastic loads may not represent completely the impact on pulmonary and chest wall receptors derived from breathing at low thoracic volumes. The purpos...

Journal: :Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc 2007
F Lemaître D Polin F Joulia A Boutry D Le Pessot D Chollet C Tourny-Chollet

The aim of this study was to investigate the effects of short repeated apneas on breathing pattern and circulatory response in trained (underwater hockey players: UHP) and untrained (controls: CTL) subjects. The subjects performed five apneas (A1-A5) while cycling with the face immersed in thermoneutral water. Respiratory parameters were recorded 1 minute before and after each apnea and venous ...

Journal: :Pneumologia (Bucharest, Romania) 2022

Abstract Introduction We analyse anthropometric, somnopolygraphic and comorbidities data in patients with OSA syndrome, COPD, COPD obesity. Material method 2644 patients, three groups: I – (2112 pts., 79.9%); II (116 4.4%); III OSA, obesity (416 15.7%). Results significantly older (p &lt; 0.01, p = 001, 0.01); more men: 68.4% vs. 80.2% 78.8%; smokers 59.4% 70.7% 74.3%; larger neck circumference...

Journal: :The European respiratory journal 1998
S L Gonsalez D Thompson R Hayward R Lane

In the past few years, hindbrain herniation has become recognized as a frequent feature of the child with syndromic craniofacial dysostosis. The clinical significance of hindbrain herniation in these disorders is unclear. Abnormalities of respiratory control have frequently been reported. The aim of the present study was to document the incidence of obstructive and central respiratory abnormali...

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