engleski

Neurovascular evaluation of spontaneous recanalisation in internal carotid artery occlusion

Study objectives: Spontaneous recanalisation of occluded internal carotid arteries /ACI/ has been previously reported. The reason for this is that diagnosis of recanalisation required conventional catheter angiography, a “gold standard” as well as an invasive procedure for distinguishing total arterial occlusion from sub-occlusion. The exact timing of spontaneous recanalisation remains unclear, although it has most commonly occurred early after a stroke. Several mechanisms, including vasospasm, distal embolisation of occlusive clot, and spontaneous clot lysis, have been proposed to explain recanalisation Methods: Two cases of late spontaneous recanalisation in an acute occluded internal carotid artery, were angiographically reported in the Department of neurology Clinical Hospital of Rijeka. Results: Routine follow-up in both cases has shown spontaneous recanalisation of internal carotid artery after which both patients were scheduled for stenting. Conclusion: These and other similar cases described in literature as well as limited usage of angiography in control diagnosis, raise the possibility that recanalisation in /ACI/ is more frequent than previously considered. Routine follow – up by noninvasive ultrasound diagnostic is a safe and secure method and serial monitoring of all patients with carotid occlusion is required. During this time it is possible to determine which patient is to undergo a successful surgical or stenting procedure, and help determine true incidence of recanalisation, in despite of the ambiguity of recanalisation mechanism.

spontaneous recanalisation; occlusio; internal carotid artery

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