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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Frequent flyers: recurrent large vessel occlusion requiring thrombectomy
Mikiya Beppu1,2, Yohanna Kusuma3,4, Peter J Mitchell5
1Neurology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia.
Repeat large vessel occlusion (LVO) thrombectomy shows distinct patterns. Early recurrence links to vessel issues, while delayed recurrence suggests atrial fibrillation, guiding targeted evaluations for stroke patients.
Area of Science:
- Neurology
- Cardiology
- Vascular Surgery
Background:
- Recurrent large vessel occlusion (LVO) after thrombectomy is uncommon but significant.
- Understanding the causes of recurrent LVO, especially the timing and link to atrial fibrillation, needs further characterization.
Purpose of the Study:
- To investigate the association between the timing of recurrent LVO after thrombectomy and its underlying aetiology.
- To compare clinical characteristics, aetiology, and procedural variables between early and delayed recurrence groups.
Main Methods:
- Retrospective study of patients undergoing repeat thrombectomy for recurrent LVO (January 2020 - December 2024).
- Stratification of recurrence timing into early (≤1 day) and delayed (≥2 days).
- Comparison of clinical, aetiological, and procedural factors between early and delayed groups.
Main Results:
- 1.4% of thrombectomy procedures (16/1116) involved recurrent LVO.
- Early recurrence (n=8) was consistently same-vessel and linked to non-atrial fibrillation causes (atherosclerosis, dissection).
- Delayed recurrence (n=8) was strongly associated with atrial fibrillation (87.5%), with many patients not on anticoagulation.
Conclusions:
- Recurrent LVO after thrombectomy exhibits time-dependent patterns.
- Early recurrence suggests a need for vascular imaging and plaque assessment.
- Delayed recurrence points to the importance of intensified rhythm monitoring for atrial fibrillation.
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