نتایج جستجو برای: oxygenation index

تعداد نتایج: 415737  

Journal: : 2022

Background . One of the most frequent and severe complications in early postoperative period lung transplantation is primary graft dysfunction resulting from ischemia-reperfusion injury. There evidence effectiveness using inhaled nitric oxide order to prevent such Objective To assess intra- bilateral transplantation. Material methods We examined 43 patients who underwent at N.V. Sklifosovsky Re...

Journal: :American journal of physiology. Heart and circulatory physiology 2008
Audrey Borghi-Silva Cláudia Carrascosa Cristino Carneiro Oliveira Adriano C Barroco Danilo C Berton Debora Vilaça Edgar B Lira-Filho Dirceu Ribeiro Luiz Eduardo Nery J Alberto Neder

Blood flow requirements of the respiratory muscles (RM) increase markedly during exercise in chronic heart failure (CHF). We reasoned that if the RM could subtract a fraction of the limited cardiac output (QT) from the peripheral muscles, RM unloading would improve locomotor muscle perfusion. Nine patients with CHF (left ventricle ejection fraction = 26 +/- 7%) undertook constant-work rate test...

Journal: :Journal of critical care 2006
Patrick J McNamara Firdous Laique Sataporn Muang-In Hilary E Whyte

BACKGROUND Many neonates with severe persistent pulmonary hypertension of the newborn (PPHN) are nonresponders to inhaled nitric oxide (iNO). Milrinone is a promising adjunctive therapy because of its pulmonary vasodilator properties and cardiotropic effects. DESIGN Case series of neonates with severe PPHN (defined as oxygenation index [OI] >20, failure of iNO therapy, and echocardiographic c...

Journal: :Journal of applied physiology 2007
Andrew W Subudhi Andrew C Dimmen Robert C Roach

To determine if fatigue at maximal aerobic power output was associated with a critical decrease in cerebral oxygenation, 13 male cyclists performed incremental maximal exercise tests (25 W/min ramp) under normoxic (Norm: 21% Fi(O2)) and acute hypoxic (Hypox: 12% Fi(O2)) conditions. Near-infrared spectroscopy (NIRS) was used to monitor concentration (microM) changes of oxy- and deoxyhemoglobin (...

2014
James Selfe Jill Alexander Joseph T. Costello Karen May Nigel Garratt Stephen Atkins Stephanie Dillon Howard Hurst Matthew Davison Daria Przybyla Andrew Coley Mark Bitcon Greg Littler Jim Richards

BACKGROUND Whole body cryotherapy (WBC) is the therapeutic application of extreme cold air for a short duration. Minimal evidence is available for determining optimal exposure time. PURPOSE To explore whether the length of WBC exposure induces differential changes in inflammatory markers, tissue oxygenation, skin and core temperature, thermal sensation and comfort. METHOD This study was a r...

Journal: :British journal of anaesthesia 2011
C S Burkhart A Rossi S Dell-Kuster M Gamberini A Möckli M Siegemund M Czosnyka S P Strebel L A Steiner

BACKGROUND Age is an important risk factor for perioperative cerebral complications such as stroke, postoperative cognitive dysfunction, and delirium. We explored the hypothesis that intraoperative cerebrovascular autoregulation is less efficient and brain tissue oxygenation lower in elderly patients, thus, increasing the vulnerability of elderly brains to systemic insults such as hypotension. ...

Journal: :The European respiratory journal 1998
P Biban D Trevisanuto A Pettenazzo P Ferrarese E Baraldi F Zacchello

The aim of this study was to evaluate the effect of inhaled nitric oxide (NO) in newborns with acute hypoxaemic respiratory failure and the impact of this NO therapy on survival and the need for extracorporeal membrane oxygenation (ECMO). A cohort of newborns with a gestational age of > or = 34 weeks and an oxygenation index (OI) > 25 were prospectively evaluated. Patients were given NO at an i...

Journal: :BMC Anesthesiology 2007
AB Johan Groeneveld

BACKGROUND Trauma and surgery may be complicated by pulmonary dysfunction, acute lung injury (ALI) and acute respiratory distress syndrome (ARDS), but the mechanisms are incompletely understood. METHODS We evaluated lung capillary protein permeability non-invasively with help of the 67Ga-transferrin pulmonary leak index (PLI) technique and extravascular lung water (EVLW) by the transpulmonary...

2015
Kenichi Kimura Takayoshi Ryujin Makoto Uno Ikuro Wakayama

The aim of the present study was to investigate the effect of electroacupuncture (EA) with different frequencies on muscle oxygenation in humans. The subjects were 8 healthy male volunteers. Muscle oxygenation was measured using near-infrared spectroscopy (NIRS). Blood pressure (BP) and heart rate (HR) were monitored simultaneously. After baseline recording, EA was given for 15 min and recovery...

Journal: :trauma monthly 0
abbas taher department of anesthesiology and critical care, hamadan university of medical sciences, hamadan, ir iran zahra pilehvari department of anesthesiology and critical care, hamadan university of medical sciences, hamadan, ir iran; department of anesthesiology and critical care, besat hospital, hamadan university of medical sciences, hamadan, ir iran. tel: +98-9123878776, fax: +98-2177053308 jalal poorolajal department of epidemiology, modeling of noncommunicable diseases research center, school of public health, hamadan university of medical sciences, hamadan, ir iran mashhood aghajanloo department of neurosurgery, hamadan university of medical sciences, hamadan, ir iran

objectives the purpose of this study was to evaluate the effects of normobaric hyperoxia on clinical neurological outcomes of patients with severe traumatic brain injuries. we used the glasgow outcome scale (gos), barthel index, and modified rankin scale (mrs) to measure the outcomes of patients with tbi. patients and methods sixty-eight consecutive patients with severe tbi (mean glasgow coma s...

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