Number of Air Microemboli Registered Over the Middle Cerebral Arteries by On-line Trans-cranial Echo-Doppler (TCD). Before cardiac ejection [clinicaltrials_resource:179fbf6cadffb2819b4e7e57e9e17648]

The number of air microemboli (also referred to as gaseous microembolic signals) was concomitantly counted in the right and left medial cerebral artery. The number of signals from the right and the left medial cerebral artery were summed, and presented as the total sum of the gaseous micromebolic signals from the right and left side. Counting of gaseous microembolic signals was done during three time intervals: Before cardiac ejection, after cardiac ejection and during 10 minutes after cardiopulmonary bypass.

Number of Air Microemboli Registered Over the Middle Cerebral Arteries by On-line Trans-cranial Echo-Doppler (TCD). Before cardiac ejection [clinicaltrials_resource:179fbf6cadffb2819b4e7e57e9e17648]

The number of air microemboli (also referred to as gaseous microembolic signals) was concomitantly counted in the right and left medial cerebral artery. The number of signals from the right and the left medial cerebral artery were summed, and presented as the total sum of the gaseous micromebolic signals from the right and left side. Counting of gaseous microembolic signals was done during three time intervals: Before cardiac ejection, after cardiac ejection and during 10 minutes after cardiopulmonary bypass.