International Scholarly Research Notices / 2013 / Article / Tab 3

Clinical Study

Morphology of Middle Cerebral Artery Aneurysms: Impact on Surgical Strategy and on Postoperative Outcome

Table 3

(a) Surgical difficulty: factors assessed to prognosticate intraoperative rupture in patients with ACM aneurysm ( ). Statistically significant influence of the factors was evaluated using multiple logistic regression analysis. (b) Outcome: factors assessed to prognosticate new postoperative ischemia in patients with MCA aneurysm ( ). Statistically significant influence of the factors was evaluated using multiple logistic regression analysis.
(a)

Factor valueOdds ratioConfidence interval
5% Lower95% Upper

SAH0.001*18.913.249110.075
M20.008*0.150.0410.613
DBD0.007*1.921.1953.108
Aneurysm diameter0.022*0.560.3450.920
Vessel diameter0.043*0.350.1280.968
Neck vessel ratio0.9071.030.6151.729
Multi-lobated shape0.4420.510.5274.338
Branching vessels0.023*23.881.563364.840

(b)

Factor valueOdds ratioConfidence interval
5% Lower95% Upper

SAH0.001*0.1840.0940.360
M20.004*3.483.4841.483
DBD0.031*1.291.0231.615
Aneurysm diameter0.3400.900.7281.116
Vessel diameter0.0830.620.3651.064
Neck diameter0.041*1.261.0091.568
Multi-lobated shape0.009*2.331.2304.407
Branching vessels0.9970.990.1825.450
Temporary clipping0.3081.060.9441.200