Dynamic Cerebral Autoregulation and Monitoring Cerebral Perfusion
نویسندگان
چکیده
منابع مشابه
Dynamic cerebral autoregulation and monitoring cerebral perfusion.
Cerebral autoregulation (CA) describes the capability of the brain to maintain its flow as relatively stable over a wide rage of mean arterial pressures (MAPs), for example, from 60 to 150 mm Hg. Because the brain is encompassed in the skull, CA is vital for preventing cerebral edema and hemorrhage, as illustrated in some patients experiencing acute liver failure.1 Also, CA counteracts the effe...
متن کاملEditorial Commentary Dynamic Cerebral Autoregulation and Monitoring Cerebral Perfusion
Cerebral autoregulation (CA) describes the capability of the brain to maintain its flow as relatively stable over a wide rage of mean arterial pressures (MAPs), for example, from 60 to 150 mm Hg. Because the brain is encompassed in the skull, CA is vital for preventing cerebral edema and hemorrhage, as illustrated in some patients experiencing acute liver failure.1 Also, CA counteracts the effe...
متن کاملCerebral Autoregulation Real-Time Monitoring
Cerebral autoregulation is a mechanism which maintains constant cerebral blood flow (CBF) despite changes in mean arterial pressure (MAP). Assessing whether this mechanism is intact or impaired and determining its boundaries is important in many clinical settings, where primary or secondary injuries to the brain may occur. Herein we describe the development of a new ultrasound tagged near infra...
متن کاملModern and Evolving Understanding of Cerebral Perfusion and Autoregulation.
Key Points Significant changes in anesthetic management for optimizing cerebral perfusion have occurred over the past 5 to 10 years. Perhaps the most important of these changes has been a reinterpretation of older autoregulation studies that have resulted in raising the lower limit of autoregulation to approximately 70 mm Hg to 80 mm Hg, and not the previously used 60 mm Hg. Tremendous variabil...
متن کاملDynamic cerebral autoregulation during brain activation paradigms.
Dynamic cerebral autoregulation (CA) describes the transient response of cerebral blood flow (CBF) to rapid changes in arterial blood pressure (ABP). We tested the hypothesis that the efficiency of dynamic CA is increased by brain activation paradigms designed to induce hemispheric lateralization. CBF velocity [CBFV; bilateral, middle cerebral artery (MCA)], ABP, ECG, and end-tidal Pco(2) were ...
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ژورنال
عنوان ژورنال: Hypertension
سال: 2010
ISSN: 0194-911X,1524-4563
DOI: 10.1161/hypertensionaha.110.154971