Colour Doppler examination of early and late orbital haemodynamic changes in eyes with eyelid oedema due to blunt trauma.

Acta Ophthalmol Scand 2006 Apr;84(2):242-5

Department of Ophthalmology, Numune Training and Research Hospital, Ankara, Turkey.

Purpose: To evaluate the early and late alterations in orbital blood flow parameters in eyes with severe eyelid swelling due to blunt trauma by using colour Doppler ultrasonography (CDU).

Methods: Blood flow parameters in the ophthalmic artery (OA), central retinal artery (CRA), short posterior ciliary arteries (SPCAs) and central retinal vein (CRV) were examined by CDU in 62 eyes of 31 patients with unilateral blunt trauma and in 32 eyes of 32 normal subjects. Patients were examined within the first 5 days and at least 1 month after trauma. The traumatized eyes of patients were designated 'trauma eyes', non-traumatized fellow eyes were designated 'fellow eyes', and randomly chosen eyes of control subjects 'control eyes'.

Results: In the early phase, peak systolic velocity (PSV) and end diastolic velocity (EDV) in the OA in trauma eyes were statistically significantly higher than in both fellow eyes and control eyes: the p-values for the differences in PSV and EDV between trauma eyes and fellow eyes were p < 0.001 and p = 0.001, respectively, while the p-values for the differences in PSV and EDV between trauma eyes and control eyes were p = 0.002 and p = 0.019, respectively). No other blood flow parameters obtained at the first examination in all groups were statistically different. In the late phase, PSV in the OA in trauma eyes was found to be higher than that in both fellow eyes and control eyes, but the difference was significant only between trauma eyes and fellow eyes (p = 0.028). End diastolic velocity in the CRA was statistically significantly lower in fellow eyes than in control eyes (p = 0.046). No other blood flow parameters in any vessels examined in fellow eyes and control eyes were statistically significantly different during the study period.

Conclusion: Blood flow velocities detected by CDU are increased in the OA in eyes with eyelid oedema due to blunt trauma and some of these changes may persist for up to 1 month. This effect seems to be a consequence of trauma-induced hyperaemia in the orbital soft tissues rather than an expression of traumatic choroidal vasculopathy.

Download full-text PDF

Source
http://dx.doi.org/10.1111/j.1600-0420.2005.00572.xDOI Listing
April 2006
4 Reads

Publication Analysis

Top Keywords

fellow eyes
28
trauma eyes
24
eyes control
24
eyes
24
control eyes
20
blood flow
20
blunt trauma
16
flow parameters
16
edv trauma
12
trauma
10
eyes eyelid
8
diastolic velocity
8
differences psv
8
eyelid oedema
8
colour doppler
8
oedema blunt
8
eyes patients
8
central retinal
8
early late
8
eyes statistically
8

References

(Supplied by CrossRef)
Experimental study of disturbance of choroidal circulation following blunt trauma
Kitashoji et al.
Folia Ophthalmol Jpn 1990
Experimental study of retinal opacity after ocular blunt trauma: fluorescein angiographic and histopathological appearance
Kitashoji et al.
Folia Ophthalmol Jpn 1985
Blood velocity in the ophthalmic artery in normal subjects and patients with endophthalmitis
Michelson et al.
Invest Ophthalmol Vis Sci 1990
Posterior fundus changes following ocular concussion: clinical studies on traumatic triangular-shaped choroidal atrophy
Namba et al.
Jpn J Clin Ophthalmol 1980

Similar Publications