Article Figures & Data
Figures
- Fig 1.
PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) flow diagram.
- Fig 2.
Forest plot for long-term (≥1 year) rupture rate per 100 patient-year (PY) with respective 95% confidence intervals (95% CIs).
Tables
Studies that reported long-term aneurysm rupture following endovascular therapy
Author, Year Number of Patients with Long-Term Aneurysm Rupture Posttreatment Location of Long-Term Aneurysm Rupture Posttreatment Reason for Rupture Kaku et al, 199915 1 Anterior (n = 1) Incomplete occlusion followed by aneurysmal recanalization and regrowth 15 months after IDC embolization on carotid angiogram. Patient had subarachnoid hemorrhage at 15 months after treatment and died. Johnston et al, 200016 3 Not explicitly reported (n = 3) Rupture caused by incomplete occlusion for technical reasons leading to delayed subarachnoid or intracranial hemorrhage during a mean follow-up duration of 3.8 years. Two patients refused follow-up angiography despite new compressive symptoms. In the third patient, only a small portion of the aneurysm could be treated, and surgical clipping was refused. Terada et al, 200520 1 Posterior (n = 1) Bilateral posterior cerebral arteries were left patent after aneurysm embolization. Fatal rupture of large basilar tip aneurysm at 28 months due to no follow-up visits and died the day before admission from a massive subarachnoid hemorrhage. Im et al, 200912 1 Anterior (n = 1) Rupture occurred 18 months after complete coil embolization of a 5-mm MCA bifurcation aneurysm. The patient was lost to clinical follow-up after initial coil embolization, which was later on completely occluded by second coil embolization. The patient had a good recovery without neurologic deficits. Pyysalo et al, 201328 3 Anterior (n = 2)
Not explicitly reported (n = 1)Delayed ruptures during mean follow-up duration of 13 years. First patient with 20-mm, incompletely coiled MCA aneurysm with no follow-up due to age of 65 years. Second patient with 4-mm, completely coiled MCA aneurysm with some follow-up and rupture a couple of years later. The data were not found for the third patient. Mine et al, 201429 1 Not explicitly reported (n = 1) Delayed rupture during mean follow-up duration of 2.2 years because of incomplete coiling and refusal of further treatment. Petr et al, 201632 1 Anterior (n = 1) Delayed rupture of large MCA aneurysm and death during a mean follow-up duration of 1.7 years. Koyanagi et al, 201814 1 Posterior (n = 1) Rupture of a large (14-mm) basilar bifurcation aneurysm at 21 months. Total 12 Note:—IDC indicates interlocking detachable coils.
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