No abstract

Th e aim of our study was to report a series of  consecutive patients with aneurysms of the proximal segment (A) of the anterior cerebral artery. In  patients with diagnosed A aneurysms, representing . of  aneurysm patients treated at a University Clinical Center between October  and August , clinical presentation, neuroradiological fi ndings, surgical treatment methods and outcome were retrospectively analyzed. Mean patient age was . (range  to ) years. Ten saccular aneurysms were treated with micro neurosurgical approach via standard pterional craniotomy, four fusiform aneurysms with coiling, and one fusiform aneurysm with stent. No patients died during the operation. Th e mean follow-up period was  months (range  months to  years). Clinical outcomes revealed good recovery in all patients. Despite the general opinion that A aneurysms are benign lesions, an increasing number of reports have demonstrated their potential complications. To date, due to the rarity of A aneurysms, only a few consecutive series have been reported. Conduct of multicenter studies are required in order to understand clinical features of A aneurysms and devise a proper treatment plan.©  Association of Basic Medical Sciences of FB&H. All rights reserved KEY WORDS: anterior cerebral artery aneurysm, A segment, digital subtraction angiography, endovascular treatment, subarachnoid hemorrhage.

The purpose of the work was to study the features of reparative osteogenesis for filling the defect of tubular bone under implantation of mesh titanium nickelide constructs. Tibial fenestrated defect was modeled experimentally in 30 Wistar pubertal rats, followed by implant intramedullary insertion. The techniques of radiography, scanning electron microscopy and X-ray electron probe microanalysis were used. The mesh implant of titanium nickelide has been established to possess biocompatibility, osteoconductive and osteoinductive properties, the zone of osteogenesis and angiogenesis is created around it, bone cover is formed. Osteointegration of the implant occurs early, by 7 days after surgery, and by 30 days after surgery organotypical re-modelling of the regenerated bone takes place, as well as the defect is filled with lamellar bone tissue by the type of bone wound primary adhesion. By 30 days after surgery mineral content of the regenerated bone tissue approximates to the composition of intact cortex mineral phase.

The reason for this transition is simple: many procedures can be executed more efficiently and with less morbidity using lasers when compared with scalpel, electrocautery or high frequency devices. Onisor [12] performed an in vitro study using Er: YAG and CO 2 laser for crown lengthening, gingivoplasty and maxillary labial frenectomy. The same authors [12] concluded that Er: YAG is able to provide good cutting and coagulation effects on soft tissues. Specific parameters have to be defined for each laser in order to obtain the desired effect. Reduced or absent water spray, defocused light beam, local anesthesia and use of long pulses are important in order to obtain optimal coagulation and bleeding control. Kaya [13] described a case of pyogenic granuloma around an implant seven years after its insertion which they treated by use of Er: YAG laser. Türer [14] compared Er: YAG laser to the scalpel in the preparation of the recipient site for free gingival grafts. The same authors [14] stated that Er: YAG laser may be used with similar effectiveness as the scalpel for this purpose. Laser surgery has emerged as an established method in advanced medicine. Laser-induced remote tissue treatment provides a number of advantages: controllable coagulation and cutting of surgical tissues with wavelength tissue-specific cutting efficiency [15].