Nitroglycerin and cerebral oxygen saturation
نویسندگان
چکیده
منابع مشابه
Measurements of Cerebral Arterial Oxygen Saturation
This pilot investigation was undertaken to assess the performance of a novel fiber-optic cerebral pulse oximetry system. A fiber-optic probe designed to pass through the lumen of a cranial bolt of the type used to make intracranial pressure measurements was used to obtain optical reflectance signals directly from the brain tissue. Preliminary results from seven patients measured in the operatin...
متن کاملArterial oxygen saturation, COPD, and cerebral small vessel disease.
OBJECTIVE To study whether lower arterial oxygen saturation (SaO(2)) and chronic obstructive pulmonary disease (COPD) are associated with cerebral white matter lesions and lacunar infarcts. METHODS We measured SaO(2) twice with a pulse oximeter, assessed the presence of COPD, and performed MRI in 1077 non-demented people from a general population (aged 60-90 years). We rated periventricular w...
متن کاملHemodynamics, cerebral circulation, and oxygen saturation in Cheyne-Stokes respiration.
Because cardiovascular disorders and stroke may induce Cheyne-Stokes respiration, our purpose was to study the interaction among cerebral activity, cerebral circulation, blood pressure, and blood gases during Cheyne-Stokes respiration. Ten patients with heart failure or a previous stroke were investigated during Cheyne-Stokes respiration with recordings of daytime polysomnography, cerebral bloo...
متن کاملNoninvasive optical quantification of cerebral venous oxygen saturation in humans.
RATIONALE AND OBJECTIVES Cerebral oxygen extraction, defined as the difference between arterial and venous oxygen saturations (SaO2 and SvO2), is a critical parameter for managing intensive care patients at risk for neurological collapse. Although quantification of SaO2 is easily performed with pulse oximetry or moderately invasive arterial blood draws in peripheral vessels, cerebral SvO2 is fr...
متن کاملFeasibility of absolute cerebral tissue oxygen saturation during cardiopulmonary resuscitation
INTRODUCTION Current monitoring during cardiopulmonary resuscitation (CPR) is limited to clinical observation of consciousness, breathing pattern and presence of a pulse. At the same time, the adequacy of cerebral oxygenation during CPR is critical for neurological outcome and thus survival. Cerebral oximetry, based on near-infrared spectroscopy (NIRS), provides a measure of brain oxygen satura...
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ژورنال
عنوان ژورنال: Canadian Journal of Anesthesia/Journal canadien d'anesthésie
سال: 2008
ISSN: 0832-610X,1496-8975
DOI: 10.1007/bf03017598