In order to determine the frequency of neck vessel injuries, Doppler invest
igations were performed in 60 patients following either severe head injury
(n = 29), cervical spine injury (n = 26), or combined head and cervical spi
ne injury (n = 5). The majority of patients were referred to our hospital f
or early rehabilitation; before admission Doppler investigations had been p
erformed in only 2 patients. Clinically, 3 patients sustained severe cerebr
al ischemia due to neck vessel trauma: 1 patient with left-sided ICA dissec
tion after head trauma revealed Doppler abnormalities only in the early pha
se of the disease; the second patient demonstrated persistent Doppler abnor
malities due to traumatic right-sided ICA and VA occlusion. The third patie
nt sustained a fatal vertebral and basilar artery thrombosis following cerv
ical spine injury. In 57 patients without clinical signs suspicious of neck
vessel trauma, sonography revealed abnormalities in 3 patients (11%) with
severe head injury and in 6 patients (20%) with cervical spine or combined
head and spine injury, in both groups mainly related to the vertebrobasilar
system. Neck vessel injury is probably an underdiagnosed complication of s
evere head or cervical spine trauma. Although interpretation of Doppler fin
dings may be difficult, particularly in the vertebrobasilar system, Doppler
investigations can be recommended as a screening method to exclude neck ve
ssel injuries.