Chapter

Cerebral Bridging Vein Rupture in Humans

12/2004; DOI:10.1007/1-4020-3796-1_31 pp.305-312

ABSTRACT A well known cause of death and disability after head trauma is the occurrence of an acute subdural haematoma (ASDH) due to
bridging vein rupture. In the past, damage to the bridging veins and ASDH has been shown to be related to angular acceleration
of the head in the sagittal plane. The objective of the present study was to establish critical peak angular accelerations
in short duration impacts on the head (<15ms), typical for falls and collisions. 18 tests were performed. The results complement
impact data from Löwenhielm. Moreover, the tolerance criteria for bridging vein disruption suggested by Löwenhielm are confirmed
for short pulse durations. The first states that the peak angular acceleration cannot exceed 4500 rad/s?. The second constitutes a limitation of the change in angular velocity to 40 rad/s. If both of these conditions are fulfilled,
the integrity of the bridging veins is said to be assured.

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Keywords

acute subdural haematoma
 
bridging vein disruption
 
bridging vein rupture
 
bridging veins
 
collisions
 
critical peak angular accelerations
 
duration impacts
 
head trauma
 
impact data
 
known cause
 
Löwenhielm
 
sagittal plane
 
short pulse durations
 
tolerance criteria