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Introduction/Objective. Increasing incidence of spinal cord injuries presents a very important issue. These patients are usually very young, treatment is very tough, long, expensive and, in general, of little success rate. The aim of this study was to evaluate the angiogenic potential of the omental graft in spinal cord revascularization after the injury. Methods. The study included 19 patients, who underwent recurrent surgical procedure for pain syndrome or surgical complication, and one patient in whom angiography revealed no flow in distal part of omental graft. Results. Our study confirmed angiogenic capabilities of omental graft placed in the course of omentomyelopexy for the injured spinal cord revascularization, macroscopically and histopathologically. Study results are limited due to inclusion of patients, only when the postoperative period was complicated. Conclusion. Our study provides some insight into the angiogenic capabilities. Although, further (likely less invasive) studies are needed to provide more insight into omental angiogenesis and to include patients in whom the procedure went well.

Introduction. Natural course of aneurysms that occur on blood vessels of the brain singles out the need for understanding the mechanism of the occurrence of aneurysm wall rupture and identification of anatomic characteristics as predictive factors for hemorrhage to occur. Objective. In this study we comparatively present results of our researches and experimental models on animals. Methods. We made a comparative analysis of anatomical characteristics of blood vessels of the brain and aneurysms obtained on the basis of digital subtraction angiography and intraoperative finding. In this article we review recent research in the anatomic characteristics of intracranial aneurysms and parent blood vessels. We present a series of 185 aneurysms (ruptured and unruptured) dissected at the Neurosurgical Clinic of Clinical Center of Serbia in Belgrade. Results. Inclination angle may be considered as the vital predesposing factor for intracranial aneurysm rupture. In aneurysms that ruptured it was 139.748±27.242°, while in unruptured aneurysms it was considerably smaller and amounted to 100.882±22.001° (p

Introduction: The size of meningioma and its relation with neurovascular structures in petroclival region stipulate the degree of surgical radicalism and determine an operation risk. In spite of progress of surgical technology, the rate of surgical morbidity in view of cranial nerves deficit is 30%-50%. Objective: The objective of our study was to present the results of treatment of patients with petroclival meningiomas and to point to correlation of preoperative radiological findings and intraoperative results as well as neurological status of patients before and after surgical treatment. Method: Retrospective analysis of 35 operated petroclival meningiomas at the Institute of Neurosurgery, CCS, in the period from 1995 to 2004 was presented. The following parameters were analyzed: size of tumor, relation with bone and neurovascular structures, preoperative condition, degree of surgical radicalism and postoperative outcome. Results: The size of tumor was classified in four groups. There were 20 tumors at the right, and 15 at the left side. At the time of diagnostic procedures (based on CT and MRI), 20 tumors were in contact with brainstem, 9 compressed the brainstem, and 6 obstructed the IV ventricle. Preoperative patient condition was evaluated by Karnofsky index. Mean value for group I was 90, II - 80, III - 70 and IV - 50. In 9 cases, liquor drainage was performed preoperatively. In 3 cases, external liquor drainage was carried out postoperatively, and in one case it was replaced by permanent liquor drainage. Radical operation was performed in 44%, and significant reduction was done in other cases. In the postoperative period, 11% patients died, 28% had cranial nerves deficit, and pyramid deficit was recorded in 14% of the patients. The tumor size (III-IV) and brainstem compression were found to be statistically significant (p

INTRODUCTION Hydrocephalus is one of the most significant complications of spontaneous subarachnoidal haemorrhaging that can be treated surgically. OBJECTIVE We analyzed risk factors that caused spontaneous subarachnoidal haemorrhaging. Patients were divided into two groups: shunt-dependent and shunt-independent. METHOD We retrospectively analyzed 174 patients (63 men and 111 women), surgically treated at the Institute of Neurosurgery of Clinical Center of Serbia in the period from January 2002 to January 2004. RESULTS The prevalence of hydrocephalus in patients with a shunt (shunt-dependent) was most significant in women (18%:9.5%), but not statistically significant (p>0.05). Concerning the significance of age (years), we found that hydrocephalus in patients with a shunt was most significant in older patients (p0.05%). In patients with intraventricular haemorrhaging (29.3%:10.5%) and vasospasms (34.6%:6.5%), the prevalence of shunt-dependent hydrocephalus was statistically very significant (p0.05). The prevalence of shunt-dependent hydrocephalus with aneurysms in the a. basillaris basin was 47.4%, with multiple aneurysms 17.2%, and with aneurysms of the anterior segment 9.5%, which represents a statistically significant difference (p