Table 6:

Factors associated with rupture after coil embolization in untreated recanalized aneurysms in the ruptured groupa

Untreated Recanalized Aneurysms (n = 21)
Unruptured (n = 17)Ruptured (n = 4)P Value
Age (yr)62.0 (44.5–78.0)55.5 (47.5–75.5).929
Sex
 Male6 (35.3%)1 (25.0%).694
 Female11 (64.7%)3 (75.0%)
Location
 ICA3 (17.7%)0 (0.0%).628
 ICA-PcomA9 (52.9%)2 (50.0%)
 AcomA4 (23.5%)2 (50.0%)
 Posterior1 (5.9%)0 (0.0%)
Dome6.2 (5.2–8.7)9.4 (5.3–14.4).347
Neck3.2 (2.5–4.6)5.2 (3.6–9.1).066
VER24.9 (21.3–29.5)25.5 (16.7–28.5).741
Use of stent
 No17 (100.0%)4 (100.0%)–
 Yes0 (0.0%)0 (0.0%)
Type of recanalization on final DSA
 II+IIIa11 (64.7%)0 (0.0%).020b
 IIIb6 (35.3%)4 (100.0%)
Aneurysm growth
 No16 (94.1%)4 (100.0%).619
 Yes1 (5.9%)0 (0.0%)

  • Note:— – indicates not available.

  • ↵a Data are recanalized aneurysms in the ruptured group (n = 37): Twenty-one of 37 recanalized aneurysms were untreated. Among 21 untreated recanalized aneurysms, 17 aneurysms unruptured and 4 aneurysms ruptured.

  • ↵b Statistical significance.