Infra-red thermometry: the reliability of tympanic and temporal artery readings for predicting brain temperature after severe traumatic brain injury

Table 1 Patient demographics: injury aetiology, brain pathology diagnosis and injury severity scores

Patient	Aetiology	Brain Pathology	Measurements made on (day after TBI)	Number of hours studied on ICU	^†n	AIS	ISS
A	Fall	ICH	3	5	13	4	17
B	Fall	Bilateral frontal haematoma	5, 6	5	17	5	30*
C	Fall	SDH	3, 5	5	14	4	16
D	Fall	DAI	4	5	11	5	26
E	RTA	Temporal contusions	6, 7	5	20	4	16
F	RTA	DAI	2, 3	5	26	5	45*
G	Fall	ICH	2	5	12	5	25
H	Assault	SDH	5, 6	5	23	4	17
I	Assault	Temporal contusions	2	5	9	3	18*
J	Fall	SDH	2	5	10	4	16
K	RTA	SDH	3	5	11	4	16
L	Fall	SDH, SAH, cerebral contusions	4	5	21	5	42*
M	RTA	SDH, cerebral oedema	4	5	21	4	24*
N	RTA	Cerebral oedema, SAH, contusions	5	5	21	4	21*
O	Fall	Cerebral contusions	4	5	21	4	16
P	RTA	DAI	2	5	19	5	66*
Q	RTA	Cerebral oedema	4	5	21	3	17*
R	Fall	EDH, cerebral oedema, cerebral contusions	3	5	21	4	16
S	RTA	SDH, cerebral contusions	2	5	21	4	41*
T	RTA	SAH, cerebral contusions	2, 3	5	21	4	18*

* significant systemic trauma, ^†number of measurements made. AIS 1 = minor injury; AIS 5 = the most severe of survivable injuries.
AIS = abbreviated injury scale; DAI = diffuse axonal injury; EDH = extradural haematoma; ICH = intracerebral haemorrhage; ICU = intensive care unit; ISS = injury severity score; RTA = road traffic accident; SAH = subarachnoid haemorrhage; SDH = subdural haematoma; TBI = traumatic brain injury.

ISSN: 1364-8535