Journal List > Kosin Med J > v.28(1) > 1057005

Kim, Seung, and Park: Endovascular or Microsurgical Treatment of Intracranial Aneurysms: Single Center Analysis

Abstract

Objectives

The objective of this study was to assess effectiveness and outcomes of endovascular versus microsurgical treatment for intracranial aneurysms in single hospital.

Methods

This was a retrospective study, using data collected during 4 year (between 2008 and 2011) from single hospital(Kosin University Gospel Hospital). A total of 274 treated, intracranial aneurysm cases were evaluated. The measurements used were effectiveness as measured by hospital discharge outcomes: 1) mortality (in-hospital death), 2) clinical outcomes(modified Ranking Scale: mRS).

Results

Among total of 274 cases, unruptured intracranial aneurysm cases were 132 cases and ruptured cases were 142 cases. Among unruptured 132 cases, 65 cases were treated by microsurgical treatment and 67 cases were treated by endovascular treatment. Among ruptured 142 cases, 61 cases were treated by microsurgical treatment and 81 cases were treated by endovascular treatment. In unruptured cases, there was not any fatal complication and same adverse outcomes (3% versus 3%). In ruptured case, in regards of treatment modality (i.e., endovascular versus microsurgical treatment), each clinical outcomes were as followings; good clinical outcome was 53.1% (43/81) versus 41.0% (25/61), moderate clinical outcome was 13.6% (1/81) versus 9.8% (6/61), severe clinical outcome was 18.5% (15/81) versus 22.9% (29/142) and fatal outcome was 14.8 (12/81) versus 26.2% (16/61).

Conclusions

This analysis of single hospital data indicates that endovascular therapy is associated with significantly less morbidity, less mortality, compared with conventional microsurgical treatment for all intracranial aneurysms. Endovascular therapy, as a treatment alternative to microsurgical clipping, should be offered as a viable therapeutic option for all patients considering treatment of an intracranial aneurysm.

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Table 1.
Distribution of sex according to the location of intracranial aneurysms
ACom PCom/ ACho MCA ICA DACA posterior circulation
M F T M F T M F T M F T M F T M F T
Ruptured 25 23 48 5 19 24 14 26 40 2 9 11 1 2 3 5 11 16
Unruptured 11 8 19 6 19 25 14 31 45 9 26 35 0 4 4 0 4 4
Total 36 31 67 11 18 49 28 57 85 11 35 46 1 6 7 5 15 20

ACom=anterior communicating artery, ACho=anterior choroidal artery, DACA=distal anterior cerebral artery, F=female, ICA=internal carotid artery, M=male, MCA=middle cerebral artery, PCom=posterior communicating artery, T=total.

Table 2.
Distribution of treatment modalities according to the location of intracranial aneurysms
ACom PCom / ACho MCA ICA DACA posterior circulation Total
Total coil 38 28 20 39 4 19 148
clip 29 21 65 7 3 1 126
Ruptured coil 27 19 13 5 2 15 81
clip 21 5 27 6 1 1 61
Unruptured coil 11 9 7 34 2 4 67
clip 8 16 38 1 2 0 65

ACom=anterior communicating artery, ACho=anterior choroidal artery, DACA=distal anterior cerebral artery, ICA=internal carotid artery, MCA=middle cerebral artery, PCom=posterior communicating artery.

Table 3.
Clinical outcome according to the treatment modality and the location of ruptured intracranial aneurysm
Location mRS 0 or 1 2 or 3 4 or 5 6
ACom Coil 15 4 5 3
Clip 9 3 7 2
MCA Coil 6 2 4 1
Clip 12 2 5 8
ICA Coil 3 0 1 1
Clip 1 0 1 4
PCom/ ACho Coil 10 4 3 2
Clip 2 1 1 1
DACA Coil 1 0 0 1
Clip 1 0 0 0
posterior circulation Coil 8 1 2 4
Clip 0 0 0 1
All location Coil 43 11 15 12
Clip 25 6 14 16
Total 68 17 29 28

ACom=anterior communicating artery, ACho=anterior choroidal artery, DACA=distal anterior cerebral artery, ICA=internal carotid artery, MCA=middle cerebral artery, mRS=modified Rankin scale, PCom=posterior communicating artery.

Table 4.
Clinical outcome according to the treatment modality and the Hund-Hess grade of ruptured intracranial aneurysm
H-H mRS 0,1 2,3 4,5 6
1,2 coil 35 6 7 1
clip 20 2 3 1
3 coil 7 3 0 3
clip 4 2 4 4
4 coil 1 2 8 6
clip 1 2 6 9
5 coil 0 0 0 2
clip 0 0 1 2
Total 68 17 29 28

H-H= Hund-Hess grade, mRS=modified Rankin scale.

Table 5.
Clinical outcome according to the size of ruptured intracranial aneurysm
size mRS 0 or 1 2 or 3 4 or 5 6
Coil < 5 mm 18 5 5 4
5-10 mm 23 5 7 7
>10 mm 2 1 3 1
Clip < 5 mm 13 2 6 6
5-10 mm 12 4 6 9
> 10 mm 0 0 2 1
Total 68 17 29 28

mRS=modified Rankin scale.

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