abstract：:The usefulness of microrecording guidance to adequately place pallidotomy lesions is not thoroughly accepted. We have analysed in 23 consecutive Parkinsonian patients the deviation of the first recording track (FRT), which was directed to the theoretical stereotactic target, from the sensorimotor area of the internal ...

journal_title：Acta neurochirurgica

authors： Molinuevo JL,Valldeoriola F,Rumià J,Nobbe FA,Martínez R,Ferrer E,Tolosa E

更新日期：1999-01-01 00:00:00

abstract：:We report three cases of ischaemic complications following direct surgery of unruptured cerebral aneurysms having necks with atherosclerotic or calcified walls. Among 30 patients we treated directly for unruptured aneurysm over the last 4 years, 6 had 8 such aneurysms. Atherosclerotic or calcified neck was a major con...

journal_title：Acta neurochirurgica

authors： Ohno K,Arai T,Isotani E,Nariai T,Hirakawa K

更新日期：1999-01-01 00:00:00

abstract：:Niravoline is a selective kappa-opioid receptor agonist. Its effect on tumour-origin brain oedema was investigated in a brain tumour model created by implantation of C6 glioma cells into the brain of Wistar rats. Five weeks after the tumour cell implantation, niravoline was administered i.v. at 1 mg/kg, a total of fou...

journal_title：Acta neurochirurgica

authors： Takahashi H,Hamada H,Teramoto A

更新日期：1999-01-01 00:00:00

abstract：:Postoperative recovery of patients with chronic subdural haematoma (CSH) was investigated by comparing pre- and postoperative coagulant and fibrinolytic activity in the haematoma contents of 15 patients with SCH. Patients in this study were treated draining the haematoma cavity without irrigation, a procedure dubbed t...

journal_title：Acta neurochirurgica

authors： Matsumoto M,Sakata Y,Yamazaki T,Endo G,Ohishi H,Takasu N

更新日期：1999-01-01 00:00:00

abstract：:Intra-operative neurophysiological techniques allow reliable identification of the sensorimotor region and make their anatomical and functional preservation feasible. Monopolar cortical stimulation has recently been described as a new mapping technique. In the present study this method was compared to the "traditional...

journal_title：Acta neurochirurgica

authors： Kombos T,Suess O,Kern BC,Funk T,Hoell T,Kopetsch O,Brock M

更新日期：1999-01-01 00:00:00

abstract：OBJECTIVES:A number of different image-guided surgical techniques have been developed during the past decade. None of these methods can provide the surgeon with information about the dynamic changes that occur intra-operatively. MATERIAL AND METHOD:The first vertical open 0.5T MRI-scanner for intra-operative MRI-guide...

journal_title：Acta neurochirurgica

authors： Seifert V,Zimmermann M,Trantakis C,Vitzthum HE,Kühnel K,Raabe A,Bootz F,Schneider JP,Schmidt F,Dietrich J

更新日期：1999-01-01 00:00:00

abstract：:In our department extensive decompression craniectomies became the treatment of choice for patients with massive cerebral oedema following either trauma or acute cerebral infarction. The remarkable survival rates of this neurosurgical technique created the problem of adequate vault defect reconstruction. To evaluate t...

journal_title：Acta neurochirurgica

authors： Schültke E,Hampl JA,Jatzwauk L,Krex D,Schackert G

更新日期：1999-01-01 00:00:00

abstract：:Large multicenter studies have recently provided long-term results substantiating the superiority of surgical as compared to conservative treatment for symptomatic and asymptomatic extracranial internal carotid stenoses of more than 70%. These results led to an increase in the frequency of thrombo-endarteriectomies. H...

journal_title：Acta neurochirurgica

authors： Stendel R,Hupp T,al Hassan AA,Brock M

更新日期：1998-01-01 00:00:00

abstract：:Colloid cysts of the third ventricle have been investigated by chemical characterization of the cyst contents using ELISA with monoclonal antibodies for certain carbohydrate epitopes as well as a polyclonal antiserum against peptide domains, and immunohistochemistry on the cyst wall using the same antibodies. Furtherm...

journal_title：Acta neurochirurgica

authors： Veerman EC,Go KG,Molenaar WM,Amerongen AV,Vissink A

更新日期：1998-01-01 00:00:00

abstract：:We investigated the role of plasminogen activators (PAs) and their inhibitor (plasminogen activator inhibitor-1, PAI-1) in human brain tumours. The amounts of urokinase-type plasminogen activator (u-PA), tissue-type plasminogen activator (t-PA), and plasminogen activator inhibitor-1 (PAI-1), and the activity of u-PA a...

journal_title：Acta neurochirurgica

authors： Arai Y,Kubota T,Nakagawa T,Kabuto M,Sato K,Kobayashi H

更新日期：1998-01-01 00:00:00

abstract：:The neural activity pattern of the subthalmic nucleus (STN) was investigated in five patients with Parkinson's disease who were scheduled for electrode implantation for chronic stimulation of the STN. The initial target was placed 8 mm or 10 mm lateral to the midline, 3 mm to 4 mm posterior to the midcommissural point...

journal_title：Acta neurochirurgica

authors： Yokoyama T,Sugiyama K,Nishizawa S,Tanaka T,Yokota N,Ohta S,Uemura K

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVE:There are divergent opinions about the prognostic value of the extent of surgery and of different histological subtypes in supratentorial astrocytomas WHO grade II. METHODS:We reviewed 75 consecutive patients (36 females, 39 males) with supratentorial astrocytomas WHO grade II (59 primary and 16 recurrent tu...

journal_title：Acta neurochirurgica

authors： Peraud A,Ansari H,Bise K,Reulen HJ

更新日期：1998-01-01 00:00:00

abstract：:Firstly, 14 patients are described who developed either an acquired Chiari malformation (ACM) alone (7 cases) or ACM and syringomyelia (7 cases) after lumbar subarachnoid space (SAS) shunting or in one case, epidural anaesthesia with SAS penetration. Four groups are considered: 3 cases with craniofacial dysostosis and...

journal_title：Acta neurochirurgica

authors： Johnston I,Jacobson E,Besser M

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:The best care and management of patients in persistent vegetative state (PVS) has been the subject of sustained moral and legal debate for a number of years. However, the views of specialist doctors in Belgium involved in the care for patients in PVS are largely unknown. METHODS:A postal questionnaire was s...

journal_title：Acta neurochirurgica

authors： Dierickx K,Schotsmans P,Grubb A,Walsh P,Lambe N

更新日期：1998-01-01 00:00:00

abstract：:We estimated the volume doubling time (Vd) of the ethyl-nitrosourea-induced rat glioma by serial magnetic resonance imaging, and the results were compared with potential doubling time (Tp) determined immunohistochemically. Vd ranged from 3.3 to 29.2 days (11.3 +/- 7.74) and Tp ranged from 2.3 to 13.3 days (6.81 +/- 3....

journal_title：Acta neurochirurgica

authors： Nakajima M,Nakasu S,Morikawa S,Inubushi T

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVE:To prospectively compare the demonstration of the intracranial optic pathway in patients with sellar/juxtasellar tumours and with clinical evidence of visual disturbance using either spoiled gradient recalled acquisition in steady state (SPGR) or conventional spin echo (CSE) T1-weighted imaging. MATERIALS AN...

journal_title：Acta neurochirurgica

authors： Sumida M,Arita K,Migita K,Iida K,Kurisu K,Uozumi T

更新日期：1998-01-01 00:00:00

abstract：:A total of 39 patients suffering from clinical instability of the lumbar spine after microdiscectomy were evaluated for their long-term outcome. Included there were 21 (54%) male and 18 (46%) female patients with a mean age of 55 years. All had been operated on for a virgin single-level lumbar disc herniation between ...

journal_title：Acta neurochirurgica

authors： Kotilainen E

更新日期：1998-01-01 00:00:00

abstract：:Intraoperative facial nerve monitoring (IFNM) is a suitable technique for intraoperative facial nerve identification and dissection, especially in large vestibular schwannomas (VS) (acoustic neuroma). To evaluate its feasibility for estimating functional nerve outcome after VS resection 60 patients underwent surgery u...

journal_title：Acta neurochirurgica

authors： Sobottka SB,Schackert G,May SA,Wiegleb M,Reiss G

更新日期：1998-01-01 00:00:00

abstract：:This report describes a rare case of a distal anterior choroidal artery aneurysm which developed intraventricular haemorrhage without subarachnoid haemorrhage as shown on computerized tomographic (CT) scan. A 69-year-old hypertensive man suddenly became unconscious. An emergency CT scan showed a severe intraventricula...

journal_title：Acta neurochirurgica

authors： Yoneoka Y,Ezuka I,Takai N,Oda T,Tamura T,Yamashita S

更新日期：1998-01-01 00:00:00

abstract：:A case of dumbbell-shaped hypoglossal neurinoma with intra- and extracranial extension is reported. The tumour was surgically completely removed in a one-stage operation via a dorsolateral sub-occipital transcondylar approach. Clinical presentation and the role of high-resolution CT-scan, MRI and angio-MRI in diagnosi...

journal_title：Acta neurochirurgica

authors： Spinnato S,Talacchi A,Musumeci A,Turazzi S,Bricolo A

更新日期：1998-01-01 00:00:00

abstract：:The purpose of the present study is to evaluate retrospectively the effects of several intra-operative manipulations on the results of foramen magnum decompression (FMD) in patients having syringomyelia associated with type I Chiari malformation. Seventy-five patients having syringomyelia associated with Chiari I malf...

journal_title：Acta neurochirurgica

authors： Guyotat J,Bret P,Jouanneau E,Ricci AC,Lapras C

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:To determine its roles in the diagnosis and the systemic evaluation of metastatic brain tumours, whole-body positron emission tomography (PET) using [18F]FDG was performed in 20 consecutive patients. METHODS:All patients were thought to be suffering or needing to be differentiated from metastatic brain tumo...

journal_title：Acta neurochirurgica

authors： Kim DG,Kim CY,Paek SH,Lee DS,Chung JK,Jung HW,Cho BK

更新日期：1998-01-01 00:00:00

abstract：:BAK-C is a new autostabilizing interbody cage which is implanted during an anterior cervical procedure to provide stability to the motion segment and allow fusion to occur. Special instrumentation is provided with a bone collecting reamer. The system utilizes surgical site bone graft as the osteo-inductive material wi...

journal_title：Acta neurochirurgica

authors： Matge G

更新日期：1998-01-01 00:00:00

abstract：:To clarify the value of clinical long-term follow-up with radiological examination, ranging from 12 to 63 months (average: 35 months), 18 consecutive patients suffering from spontaneous carotid cavernous fistula (CCF), were studied prospectively. Five aged patients without aggressive symptoms were treated conservative...

journal_title：Acta neurochirurgica

authors： Kurata A,Miyasaka Y,Kunii M,Nagai S,Ohmomo T,Morishima H,Fujii K,Kan S

更新日期：1998-01-01 00:00:00

abstract：:We previously showed that a canine basilar artery manifested tonic and potent, protein kinase C (PKC)-dependent contractions when nitric oxide (NO) was inhibited. We also reported a linear correlation between chronological changes in the angiographic severity of vasospasm, enhanced PKC, and attenuated guanosine, 13',1...

journal_title：Acta neurochirurgica

authors： Nishizawa S,Yokota N,Yokoyama T,Uemura K

更新日期：1998-01-01 00:00:00

abstract：:Being motor nerves neurinomas originating from ocular nerves are very rare, unless associated with neurofibromatosis. Authors describe two cases of oculomotor nerve i.e. third nerve, Schwann cell tumours. One of them presented as a cavernous sinus mass in a middle aged lady while the other was a middle aged man with a...

journal_title：Acta neurochirurgica

authors： Kachhara R,Nair S,Radhakrishnan VV

更新日期：1998-01-01 00:00:00

abstract：:Our understanding of the complexity of genetic abnormalities involved in the tumourigenesis of malignant gliomas is as yet rudimentary. However, we can discern distinctive patterns of loss of genetic material and amplification of chromosomal regions that characterize both the different types of gliomas as well as the ...

journal_title：Acta neurochirurgica

authors： Van de Kelft E

更新日期：1997-01-01 00:00:00

abstract：:Therapy for vasogenic brain oedema (VBE) is still an unsolved problem. Experimental work with the aim of establishing an oncotherapeutic option is presented. VBE is performed by focal freeze injury in rats. Using a stereotactic head holder hypo- or hyperosmolar human serum albumin is administered via the intraventricu...

journal_title：Acta neurochirurgica

authors： Onal C,Unal F,Turantan MI,Uzüm G,Hasanoğlu A,Kaynar MY

更新日期：1997-01-01 00:00:00

abstract：:Aneurysms of the vertebro-basilar junction area have been considered the most difficult to be surgically treated because of their deep location, the proximity of the brain stem and the cranial nerves. However, at present, new endovascular techniques and new transbasal surgical approaches offer valuable management stra...

journal_title：Acta neurochirurgica

authors： Collice M,Arena O,D'Aliberti G,Todaro C,Branca V,Boccardi E,Versari PP,Bizzozero L,Talamonti G

更新日期：1997-01-01 00:00:00

abstract：:We present 7 cases of false intracavernous carotid artery aneurysms. Four occurred after trauma and three were caused iatrogenically. Two of the latter occurred in patients with pituitary adenomas, one after transsphenoidal microsurgery and the other after yttrium [YI90] seed implantation into the sella. The third iat...

journal_title：Acta neurochirurgica

authors： Bavinzski G,Killer M,Knosp E,Ferraz-Leite H,Gruber A,Richling B

更新日期：1997-01-01 00:00:00

abstract：:An infrared based frameless stereotactic navigation device (Easy Guide Neuro) was investigated for its clinical applicability, registration/application accuracy and limitations in a standard operating room set-up. In a five-month period 40 frameless stereotactic procedures (23 female, 17 male, mean age 46.4, yrs range...

journal_title：Acta neurochirurgica

authors： Roessler K,Ungersboeck K,Dietrich W,Aichholzer M,Hittmeir K,Matula C,Czech T,Koos WT

更新日期：1997-01-01 00:00:00

abstract：:We report about the treatment and outcome of 30 patients with dural arteriovenous fistulas including the transverse and sigmoid sinuses treated between 1986 and 1995. All patients underwent panangiography for definitive diagnosis. The dAVF were supplied by the external carotid artery system alone (14 patients), both e...

journal_title：Acta neurochirurgica

authors： Olteanu-Nerbe V,Uhl E,Steiger HJ,Yousry T,Reulen HJ

更新日期：1997-01-01 00:00:00

abstract：:The cavum septi pellucidi (CSP) and cavum Vergae (CV) are persistent, primitive, or acquired, midline structures of adult human brain. It is customary to distinguish between the non-communicating and the communicating cava, depending on whether the cavum communicates with the cerebral ventricular system or not. Only a...

journal_title：Acta neurochirurgica

authors： Ronsin E,Grosskopf D,Perre J

更新日期：1997-01-01 00:00:00

abstract：:Although intracranial cavernomas are known to cause haemorrhage, data concerning the frequency, severity and delay of recurrent bleedings are controversial. We report a series of 6 patients with histologically proven cavernoma, presenting with early clinical signs and radiological proof of rebleeding, that is occurrin...

journal_title：Acta neurochirurgica

authors： Duffau H,Capelle L,Sichez JP,Faillot T,Bitar A,Arthuis F,Van Effenterre R,Fohanno D

更新日期：1997-01-01 00:00:00

abstract：:As an alternative to the gauze often used on scalp incisions, we prepared a pad made of non-woven sheets, coated with adhesive on one side. Unlike conventional gauze, the pad did not slip away from the incision line or become entangled with the scalp clips, thus demonstrating its high usefulness for this purpose. ...

journal_title：Acta neurochirurgica

authors： Ohta T,Kuroiwa T

更新日期：1997-01-01 00:00:00

abstract：:Cerebral primitive neuro-ectodermal tumour (PNET) occurring as a second primary malignancy in childhood is exceedingly rare. We present a 7-year-old boy who developed a proven supratentorial PNET five years after enucleation and radio-/chemotherapy for a sporadic, unilateral retinoblastoma with optic nerve invasion. T...

journal_title：Acta neurochirurgica

authors： Dorfmüller G,Würtz FG,Kleinert R,Lanner G

更新日期：1997-01-01 00:00:00

abstract：:Twenty operated cases of angiographically unrecognized microaneurysm (AUM) have been analysed with special reference to intra-operative observations and clipping-technique. Among the patients with intracranial aneurysms that the authors' facility has operated upon, the incidence of asymptomatic incidental AUM that was...

journal_title：Acta neurochirurgica

authors： Karasawa H,Matsumoto H,Naito H,Sugiyama K,Ueno J,Kin H

更新日期：1997-01-01 00:00:00

abstract：:MRI is routinely used in the evaluation and management of patients with failed back surgery syndrome (FBSS). However, its value is unclear in the early detection of signs that can negatively affect that later course of surgical cases. The purpose of the present study is to describe the MR images of early postoperative...

journal_title：Acta neurochirurgica

authors： Floris R,Spallone A,Aref TY,Rizzo A,Apruzzese A,Mulas M,Simonetti G

更新日期：1997-01-01 00:00:00

abstract：:Since surgeons sometimes encounter difficulty in keeping self- retaining soft tissue retractors in the proper position for anterior cervical spinal surgery, we have developed a new, simple soft tissue retractor system, which is fixed to the side rails of the operating table via retractor stands. All three joints of th...

journal_title：Acta neurochirurgica

authors： Takayasu M,Shibuya M,Suzuki Y,Yoshida J

更新日期：1997-01-01 00:00:00

abstract：:Octreotide is a potent agonist of somatostatin that lowers the serum level of growth hormone (GH), and reduces the size of somatotropinomas. However, the detailed mechanism of shrinkage of this tumour is not known. We, therefore, evaluated 11 patients with somatotropinomas who were treated with octreotide 300 microgra...

journal_title：Acta neurochirurgica

authors： Saitoh Y,Arita N,Ohnishi T,Ekramullah S,Takemura K,Hayakawa T

更新日期：1997-01-01 00:00:00