Regional Cerebral Hemodynamics Related to Global Hemodynamics

Status Recruiting

Clinical Trial Summary

This prospective investigation studies changes in regional cerebral hemodynamics and oxygenation as a function of cardiac output and blood pressure in intensive care patients.

Clinical Trial Description

Cerebral blood flow velocity (as an index of regional perfusion), dynamic cerebral autoregulation and regional cerebral oxygen saturation should be monitored if disturbances of cerebral perfusion and oxygenation have to be suspected. Noninvasive monitoring techniques are established. When detected early, disturbed perfusion and oxygenation may be treated promptly and permanent damage of brain tissue can be avoided.

In critically ill patients, hemodynamic changes occur due to the disease itself but also as a function of diagnostic and therapeutic procedures. Systemic hemodynamic changes can be monitored using PiCCO® system (pulse contour cardiac output, Pulsion Medical Systems, Munich, Germany) that combines transpulmonal thermodilution and pulse contour analysis. PiCCO® continuously monitors cardiac output (CO), as well as static parameters like global enddiastolic blood volume index (GEDVI), and dynamic parameters as difference in pulse pressure (dPP) and stroke volume variation (SVV), respectively. CC Nexfin® (BMeye, Amsterdam, The Netherlands) is a noninvasive hemodynamic monitor.

This study investigates the effects of changes in cardiac output on cerebral blood flow velocity and regional cerebral oxygen saturation in intensive care patients that underwent major abdominal surgery. ;

Study Design

Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01995565
Study type	Observational
Source	Johannes Gutenberg University Mainz
Contact
Status	Recruiting
Phase	N/A
Start date	July 2011

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