Brain injury is a serious problem after cardiac surgery. Brain injury can become evident in the form of stroke and cognitive dysfunction after surgery. The current neuromonitoring technique used is unable to monitor the region of the brain that is most susceptible to injury. This study aims to use a novel, non-invasive brain monitoring technique known as multichannel functional near infrared spectroscopy to assess brain oxygenation at multiple brain regions simultaneously during cardiac surgery. This research enables the investigators to understand the differences between regional brain oxygenation during cardiac surgery and to assess the feasibility and effectiveness of multichannel functional near infrared spectroscopy to be used as a future brain monitoring technique to detect brain injury in cardiac surgery.
Adult cardiac surgery patients who are scheduled to have elective cardiac operations.
Under 18 years of age
have skin lesions or other conditions that preclude the application of fNIRS to the head
lack of written consent
emergency surgery
Adult cardiac surgery patients who are scheduled to have elective cardiac operations. The type of cardiac surgery is not restricted.
Cohort
Prospective
multichannel fNIRS monitoring
DevicePatients who will be enrolled in this study will be monitored during cardiac surgery using multichannel fNIRS monitoring. This consists of wearing the NIRS cap that will be positioned on the patient's head according to international operational guidelines and will be secured to the temporal region of the patient's forehead. The NIRS cap is entirely non-invasive and does not pose any additional risk to the patient. Monitoring will be commenced prior to the induction of anesthesia. Subsequent surgical and medical care will not be affected.
feasibility of using multichannel fNIRS to detect and monitor cerebral oxygenation of multiple brain regions during cardiac surgery measured by detecting cortical hemodynamic and metabolic changes in different brain regions.
Assess the feasibility of using multichannel fNIRS to detect and monitor cerebral oxygenation of multiple brain regions during cardiac surgery. This will be measured by using the multichannel fNIRS monitor during cardiac surgery and to determine if this monitor can detect cortical hemodynamic and metabolic changes in different brain regions. Data will be acquired using the NIRStar Software v14.0 (NIRx Medical Technologies LLC, Berlin, Germany) at a sampling rate of 10Hz.
Describe the regional cerebral oxygenation changes during cardiac surgery measured by using using multichannel fNIRS
Describe the regional cerebral oxygenation changes during cardiac surgery. This will be measured by using multichannel fNIRS during cardiac surgery and determining whether it can detect differences in brain oxygenation in different regions of the brain. Data will be acquired using the NIRStar Software v14.0 (NIRx Medical Technologies LLC, Berlin, Germany) at a sampling rate of 10Hz .
Click on the lead sponsor to view all of their trials.
