Turkish Neurosurgery 2012 , Vol 22 , Num 4
Predictable Morphometric Parameters for Rupture of Intracranial Aneurysms – A Series of 142 Operated Aneurysms
Igor NIKOLIC1, Goran TASIC1, Vojislav BOGOSAVLJEVIC1, Branislav NESTOROVIC1, Vladimir JOVANOVIC1, Zvezdana KOJIC2, Igor DJORIC3, Branko DJUROVIC1
1Neurosurgical Clinic, Clinical Center of Serbia, Belgrade, Serbia
2Institute of Physiology, Medical Faculty of Belgrade University, Belgrade, Serbia
3Center for Radiology, Clinical Center of Serbia, Belgrade, Serbia
DOI : 10.5137/1019-5149.JTN.4698-11.1 AIM: Intracranial aneurysm rupture is followed by high mortality and morbidity. In order to understand the aneurysm's natural course, it is necessary to recognize the predisposing factors for the rupture.

MATERIAL and METHODS: Analysis included 142 operated aneurysms (94 hemorrhaging and 48 unruptured) in the period from 2008 to 2010.

RESULTS: The ratio between the width of the aneurysm neck and diameter of the carrying blood vessel – artery in ruptured aneurysms (OR) was 1.58▒0.61, and in unruptured aneurysms 1.14▒0.52 (p<0.01). Aspect ratio of ruptured aneurysm was 1.89 ▒ 0.59, and in unruptured 1:33 ▒ 0.17. The angle of inclination of ruptured aneurysms was 139.22 ▒ 21.53, while in unruptured aneurysms it was 101.73 ▒ 21.26.

CONCLUSION: Based on the results of our research, a predictive model of morphometric characteristics of the vessel bearing the aneurysm to rupture can be identified: an irregular shape of the aneurysm, AR> 1.6, OR> 1.5 and inclination angle >135 deg. Keywords : Intracranial aneurysm, Risk factors, Morphometric parameters

Corresponding author : Igor Nřkolřc, i.m.nikolic@gmail.com