ArticleEuropean radiology2023
Coiling embolization strategy for medium-to-giant-sized intracranial aneurysms treated with pipeline embolization device: a propensity score-weighted study.
Article in European radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Clinical Outcome of Pipeline Embolization Device with and without Coils to Treat Intracranial Aneurysm: A Systematic Review and Meta-Analysis.AJNR. American journal of neuroradiology · 2025Pooled it
- Quantitative digital subtraction angiography for identifying the risk factors of incomplete occlusion in intracranial aneurysms with branch incorporation after flow diverter treatment.Quantitative imaging in medicine and surgery · 2025Article
- Adjunctive Coiling in Flow Diverter Treatment Does Not Prevent Delayed Rupture: A Nationwide Survey.Neurointervention · 2025Article
- Coil embolization strategy after flow diverter deployment in patients with intracranial vertebral artery dissection aneurysms: a study from a hemodynamic viewpoint.Neurosurgical review · 2025Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesWe aim to investigate associations between different coil strategies and outcomes in the aneurysms treated by a pipeline embolization device (PED).
methodsPatients with medium-to-giant-sized aneurysms treated by PED were included. The total cohort was divided into PED-alone and PED-coiling groups, and the PED-coiling group was further divided into loose and dense packing subgroups. Multivariate logistic analyses and stabilized inverse probability of treatment weighting (sIPTW) were performed to investigate the relationships between coiling strategies and outcomes. Restricted cubic spline (RCS) curves were used to describe the coiling degree and angiographic outcome relationship.
resultsA total of 398 patients with 410 aneurysms were included. Aneurysms treated with PED coiling had a lower incomplete occlusion rate (15.3% vs. 30.3%, p = 0.002), higher total perioperative complication rate (14.2% vs. 3.5%, p = 0.001), longer production time (142.14 min vs. 101.26 min, p < 0.001), and higher total cost ($45,158.63 vs. $34,680.91, p < 0.001) than those treated with PED alone. There were no differences in outcomes between the loose and dense packing subgroups. However, the total cost was higher in the dense packing group ($43,787.46 vs. $47,288.32, p = 0.001) than in the loose packing group. The result was still robust in the multivariate and sIPTW analyses. The RCS curves showed "L-shape" relationships between the coil degree and angiographic outcomes.
conclusionCompared with PED alone, PED coiling could improve aneurysm occlusion. However, it could also increase the total complication risk, prolong procedure time, and increase the total cost. Compared with loose packing, dense packing did not enhance the treatment effectiveness but increased the treatment cost. CLINICAL RELEVANCE STATEMENT: The additional treatment effect from coiling embolization declines sharply after a certain point. Specifically, the aneurysm occlusion rate is roughly stable when the coil number is greater than 3 or the total coil length is longer than 150 cm. KEY POINTS: • Compared with pipeline embolization device (PED) alone, PED combined with coiling can improve aneurysm occlusion. • Compared with PED alone, PED combined with coiling increases the total complication risk, cost, and prolongs procedure time. • Compared with loose packing, dense packing did not increase the treatment effectiveness but increased the cost.
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