Рентгенология & Радиология, 2015, LIV 22-31

Epidemiological study of 183 patients with spontaneous rupture of cerebral aneurysm

D. Antonova, E. Tasheva

Cerebral vessels aneurysms represent a significant part of the cerebral vessels pathology. There is no extensive study on that in Bulgaria. We present a study of 183 patients with spontaneous rupture of cerebral aneurysm, diagnosed and treated in UMHATEM “Pirogov”, Sofia. We used clinical methods – data from subject history, analysis of the accompanying documentation, subject medical chart; imaging-diagnostics methods – CT, DSA and MRI; and statistical methods.A total of 183 patients with ruptured intracranial aneurysms were studied. 65% were females and 35% were men. The ration female/male is 1.86. The mean age of all patients is 53.1±10.1years. The highest incidence of ruptured aneurysms is seen inthe age group 50 to 59 years. Aneurysms of a. cerebri media and a. communicans anterior are the most frequent ( 63.4% in total); while the lest are those of a basilaris (4.9%). 88.5%of the aneurysms in the studied group are small, 9.8% arelarge and 1.6% are giant. Intracranial hematomas are seen in 13.1% of the patients with ruptured aneurysms. Most frequently hematomas are connected with a. cerebri mediaand a.communicans anterior (87.5% in total). Patients withmultiple aneurysms are 11.5% in total, 85.7% of them with ananeurysm of a.cerebri media.The incidence of ruptured cerebral aneurysms is higheramongst female. Frequency in the fifth decade of life is thehighest. Most often seen are the aneurisms of a. cerebrimedia and a. communicans anterior, and the least – those of a. basilaris. Intracranial hematomas most frequentlyare associated with ruptures of a. cerebri media and a. communicans anterior. In patients with multiple aneurysmsthe highest is the frequency of aneurysms of a. cerebri media.