Identifying risk factors for perioperative thromboembolic complications in patients treated with the Woven EndoBridge device

Kainaat Javed, Adisson Fortunel, Ryan Holland, Deepak Khatri, Samuel Ahmad, Neil Haranhalli, David Altschul

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Introduction: Woven EndoBridge (WEB) is a new endovascular treatment option for wide necked bifurcation aneurysms. Results from the WEB-IT trial showed a 0% risk of thromboembolic complications within 30 days post-op but the rate reported in the literature is as high as 10%. We are exploring potential risk factors associated with immediate thromboembolic complications in patients treated with the WEB device. Methods: Retrospective study of forty-two patients with intracranial aneurysms who were treated with WEB at a single center from 2019–2021. Data was collected on patient demographics, comorbidities, aneurysm characteristics, procedural details, and hospital course. Bivariate analyses were performed to compare patients who experienced a periprocedural ischemic stroke to those who did not. Multiple logistic regression modeling was performed to identify independent risk factors for thromboembolic complications. Results: Of the 42 patients that were treated with WEB, 6 suffered an ischemic stroke (AIS). These patients were more likely to have an underlying diagnosis of arrythmias (p value = 0.007). Furthermore, they had a median angle of 32.0° in the true neck view on diagnostic angiogram compared to 19.5° (p value = 0.046). Lastly, they had a longer procedure length of 228 min compared to 178 min (p value = 0.002). Patients with thromboembolic complications had a longer length of stay in the hospital and worse outcomes at three months follow up. On logistic regression modeling, these risk factors did not reach statistical significance. Conclusion: Risk factors of thromboembolic complications after WEB placement include cardiac arrythmias, acute aneurysmal angle in the true neck view and a longer procedure length.

Original languageEnglish (US)
JournalInterventional Neuroradiology
StateAccepted/In press - 2022
Externally publishedYes


  • WEB device. incomplete occlusion. neck remnant. residual aneurysm. recurrence

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine


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