Assessing Aneurysm Obliteration and Neck Remnants in 225 Clipped Aneurysms Using Indocyanine Green Video Angiography, Micro-Doppler Ultrasonography and Postoperative Digital Subtraction Angiography.

Aim: To present our experience of 225 clipped aneurysms in 196 patients to compare indocyanine green video angiography (ICGVA), micro-Doppler ultrasonography (MDUSG), and postoperative digital subtraction angiography (DSA) in terms of determining aneurysm obliteration, neck remnants, and parent artery patency.

Material And Methods: This retrospective study included 196 patients (108 female and 88 male patients) treated between 2013 and 2016. In all cases, aneurysm neck remnants and vessel patency were assessed using ICG-VA and 16-Hz MDUSG.

Dipyrone attenuates cerebral vasospasm after experimental subarachnoid hemorrhage in rabbits.

Background: The purpose of this study was to evaluate the effect of the systemic administration of dipyrone in a triple subarachnoid hemorrhage (SAH) model of cerebral vasospasm in rabbits.

Methods: Experimental subarachnoid hemorrhage was induced in rabbits by injecting autologous arterial blood into the cisterna magna. Digital subtraction angiographies (DSA) were performed before and after the first experimental SAH, and at 30, 45, 60 minutes and 72 hours after the first drug administration to measure the diameter of basilar artery.

Anterior communicating artery aneurysm surgery: which is the most appropriate head position?

Head positioning and the degree of rotation for anterior communicating artery aneurysm surgery is controversial. With this anatomic study, we aimed to give a broad description of head positioning for various aneurysm dome projections. In addition, with the use of a corrosion-cast technique, a three-dimensional arterial tree was demonstrated, an anterior communicating artery region aneurysm model was prepared, and pictures were taken at various angles.

Does the sphenoid angle effect the operation strategy? Anatomical and radiological investigation.

Aim: The aim of our study is to suggest the sphenoid wing-lesser wing angulation (SWA) importance during surgeries directed to this region.

Material And Methods: SWA on 40 skulls were measured bilaterally (n=80). The depth of the middle cranial fossa (DMCF) at the level of the SWA was determined.

Neuronavigation-assisted transoral-transpharyngeal approach for basilar invagination--two case reports.

Two patients presented with congenital basilar invagination manifesting as progressive myelopathy. Both patients underwent surgery using a neuronavigation-assisted transoral-transpharyngeal approach. The Brain-LAB Vector Vision navigation system was used for image guidance.

Cervical foraminal area and intervertebral height changes after titanium ring cage placement: preliminary results.

Objective: To investigate the effect of titanium ring cage implantation on cervical foraminal area and intervertebral height.

Methods: Twenty-two patients with single level cervical disc herniation were enrolled in this study. All patients underwent a standard anterior cervical discectomy followed by titanium ring cage implantation.

Primary intradural extramedullary hydatid cyst.

Spinal hydatid cysts account for 1% of all cases of hydatid disease; primary intradural hydatid cysts are uncommon. We present a case of pathologically confirmed intradural spinal cyst hydatid in an otherwise healthy patient who showed no other evidence of systemic hydatid cyst disease. The patient presented with back pain, paraparesis, and weakness.

Chlamydia pneumoniae infection related atherosclerotic clinical variables on carotid stenosis.

Objective: Research results showed that Chlamydia pneumoniae infection is related to atherosclerosis. C. pneumoniae infection may exacerbate atherogenesis.

Branches of the anterior cerebral artery near the anterior communicating artery complex: an anatomic study and surgical perspective.

The anatomy of the branches of the anterior cerebral artery (ACA) near the anterior communicating artery (ACoA) complex were investigated to minimize neurovascular morbidity caused by surgical procedures performed in this region. Thirty-one cadaver brains were perfused with colored silicone, fixed, and studied under the operating microscope. The recurrent artery of Heubner (RAH), orbitofrontal artery (OFA), and frontopolar artery (FPA) were identified as the branches of the ACA arising near the ACoA complex.

L-arginine in focal cerebral ischemia.

Nitric oxide and its precursor, L-arginine, have a great importance in cerebrovascular studies. In this study, we elucidate the dose dependent L-arginine effects on cerebral ischemia. The study involved 96 New Zealand albino rabbits, which were randomly allocated into four groups.

Resolution of cerebral vasospasm with trapidil; an animal model.

Cerebral vasospasm and rebleeding are important clinical phenomena associated with a high mortality rate. Therefore, any promising finding in the laboratory deserves assessment in clinical practice. The present study was designed to examine the possible effects of trapidil on the basilar artery of the rabbit through a cerebral vasospasm model.

The effects of topical L-arginine and Ng-nitro-L-arginine methyl ester after experimental acute spinal cord injury. A light and electron microscopic study.

The primary objective of this study was to investigate the effects of topical L-arginine and Ng-nitro-L-arginine methyl ester vs the role of ischemia in contributing to secondary injury after experimental acute spinal cord trauma. Twenty-six rabbits were submitted to spinal cord compression at the T7/8 level. The animals were divided into three groups: no applied drug (n=6), L-arginine (n=10), and Ng-nitro-L-arginine methyl ester (n=10).