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Published on: May 4, 2015
Surgical management of the totally occluded internal carotid artery: a ten-year study
Insights
Surgical intervention for total internal carotid artery occlusion can restore blood flow, especially when performed soon after symptom onset. Success rates depend on occlusion duration, with early surgery yielding better patency.
Area of Science:
- Vascular Surgery
- Neurology
- Cerebrovascular Disease
Background:
- Management of total internal carotid artery occlusion remains controversial.
- Surgical treatment for stenotic and ulcerative internal carotid artery is established.
Purpose of the Study:
- To evaluate the efficacy of thromboendarterectomy for recent total internal carotid artery occlusion.
- To determine factors influencing postoperative patency and outcomes.
Main Methods:
- Retrospective analysis of 47 thromboendarterectomies for total internal carotid artery occlusion over 10 years.
- Patient selection based on neurological manifestations and clinical status.
- Postoperative patency assessed via angiography and noninvasive tests (oculoplethysmography, carotid phonoangiography, Doppler ultrasound, ultrasonography).
Main Results:
- Overall patency rate of 68% achieved.
- Patency correlated with duration of occlusion: 100% within 7 days, 50% at 1 month.
- No operative deaths or morbidity; three patients showed dramatic improvement with immediate surgery after major deficits.
Conclusions:
- Surgical treatment for internal carotid artery occlusion is viable in selected cases.
- Careful patient selection and optimal surgical timing are crucial for successful outcomes.
- Early intervention may significantly improve neurological deficits.
Abstract:
Although surgical treatment of the stenotic and ulcerative internal carotid artery has been accepted as an effective approach to the management of cerebrovascular insufficiency, uncertainty and controversy have prevailed over the past two decades regarding the optimal management of the totally occluded artery. Over a 10-year period, 47 thromboendarterectomies were performed for recent total occlusion of the internal carotid artery. The patients were categorized and selected for surgery according to their neurologic manifestations and clinical status. Postoperative patency was studied by angiography and noninvasive laboratory tests, including oculoplethysmography, carotid phonoangiography, Doppler ultrasound, and ultrasonography. The patency rate achieved appeared to be related to the duration of carotid occlusion (100% within 7 days and 50% at 1 month). The overall patency rate was 68%. There were no operative deaths or morbidity. Dramatic improvement occurred in three patients who underwent surgery immediately after the onset of a major neurologic deficit. The results of this study indicate that surgical treatment for internal carotid occlusion should be considered in selected circumstances. Careful case selection and judicious timing of operation are mandatory.
