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. 2008 Oct 8;14(3):267–284. doi: 10.1177/159101990801400307

Table 5.

Procedure-related complications.

Complication Number of cases Incidence Rate Morbidity (n=7) / Mortality (n=11)
Rates from Complications

Total Ruptured Unruptured Total Ruptured Unruptured Total Ruptured Unruptured
(n=53) (n=26) (n=27) (n/127) (n/50) (n/77) (n, n/127) (n, n/50) (n, n/77)

Thromboembolism 17 8 9 13.4% 16.0% 11.7% 5, 3.9% 2, 4% 3, 3.9%
1, 0.8% 1, 2%

Intraoperative 8 7 1 6.3% 14.0% 1.3% 7, 5.5% 6, 12% 1, 1.3%
rupture

Coil herniation 5 1 4 3.9% 2.0% 5.2% 1*, 0.8% 1*, 2%
through stent

Postoperative 4 2 2 3.1% 4.0% 2.6% 1, 0.8% 2, 4% 1, 1.3%
rupture 3, 2.4% 1, 1.3%

Catheter-induced 4 1 3 3.1% 2.0% 3.9%
vasospasm

Stent migration 4 3 1 3.1% 6.0% 1.3%

Iatrogenic dissection 3 1 2 2.4% 2.0% 2.6%

Coil fracture 2 1 1 1.6% 2.0% 1.3%

Inappropriate stent 2 0 2 1.6% 0 2.6%
deployment

Failure in 1 0 1 0.8% 0 1.3%
microcatheter
placement after
stenting

CCF 1 1 0 0.8% 2.0% 0

ICH 1 1 0 0.8% 2.0% 0 1, 0.8% 1, 2%

Cranial nerve palsy 1 0 1 0.8% 0 1.3%

CCF, carotid-cavernous fistula; ICH, intracerebral hemorrhage; *, one case of coil herniation led to thromboembolic event.