Transcranial Doppler Sonography (TCD) is a valuable method of non-invasive measuring of cerebral blood flow. So far, no Polish publications on cerebral blood flow in children with cerebral ischaemia have been issued. One of the reasons is that ischaemic brain strokes are very rare in youngsters. TCD was performed in a group of 21 children at the age of 3, 5 to 18 years (mean age 12 years) with diagnosed cerebral ischaemic stroke (16 cases, including 3 RIND) and TIA (5 cases). In 12 children, TCD examination was performed between 3rd and 30th day after stroke, while in the remaining 9 - 1 to 10 years after that incident. Asymmetry of 30 to 80% in cerebral blood flow velocity between right and left side was observed in 15 children, mainly with decreased cerebral blood flow velocity in the stroke area. Asymmetry in blood flow velocity exceeding 30% was observed in only one child out of 5 children with TIA. In all the patients, CT, MRI and cerebral angiography results revealed a correlation with TCD changes in blood flow velocities.

Keywords: children, ischaemic insults, transcranial Doppler sonography