Carotid exploration for acute postoperative thrombosis

Area of Science:

• Vascular Surgery
• Neurology
• Clinical Outcomes Research

Background:

• Carotid endarterectomy is a common procedure to prevent stroke.
• Early reoperation after carotid endarterectomy is infrequent but carries significant implications.

Purpose of the Study:

• To determine the incidence of early carotid reoperation.
• To document operative findings, clinical outcomes, and arterial patency following reoperation.

Main Methods:

• Retrospective analysis of patients undergoing early reoperation (within 24 hours) over a 10-year period.
• Review of operative findings, clinical outcomes, and arterial patency.
• Correlation of neurologic recovery with contralateral carotid artery disease status.

Main Results:

• Early re-exploration was required in 3% of patients, most commonly for thrombosis (91%) associated with new neurologic deficits.
• Thrombosis was primarily caused by closure stenosis (11 patients) rather than intimal flaps (6 patients).
• Reoperation for neurologic deficits resulted in improvement in 50% of cases, with better outcomes in patients lacking severe contralateral disease.

Conclusions:

• Carotid re-exploration is most often necessitated by thrombosis causing postoperative neurologic deficits.
• Closure stenosis is a more frequent cause of thrombosis than intimal defects.
• Prompt surgical repair restores arterial patency and can lead to significant neurologic recovery, influenced by contralateral disease severity.