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Discover 9,883 clinical trials near San Francisco, California. Find research studies in your area.
Showing 6561-6580 of 9,883 trials
NCT03797300
Assessment of Spry Health's Loop oximetry accuracy in profound hypoxia Assessment of Spry Health's Respiratory rate accuracy in normal conditions and profound hypoxia
NCT02179840
One of the fundamental goals of anesthesia care is to optimize tissue perfusion and oxygenation, especially in critically ill patients. The standard monitors such as blood pressure, heart rate and pulse oximetry do not directly reflect tissue information and can be misleading sometimes. Coherent hemodynamics spectroscopy (CHS) based on cerebral oximetry is proposed as a continuous and non-invasive tool assessing cerebral microvascular hemodynamics. The investigators propose this study to explore the validity of CHS via comparison with transcranial Doppler measurement in anesthetized surgical patients. The hypotheses are: 1) CHS can effectively measure cerebral microvascular hemodynamic changes associated with mechanical ventilation adjustment during anesthesia. 2) CHS can assess functional status of cerebral autoregulation that is altered by hypercapnia and inhalational anesthetic agent.
NCT00655239
This study will evaluate the effectiveness of intensive computerized cognitive training in preventing the onset of psychotic disorder and improving adaptive functioning in adolescents at high risk of schizophrenia.