Abstract:
:Though the brain bulk has been considered to be constant in several pressure homeostasis studies, the central nervous tissue may be responsible for the accommodation of extracerebral masses exceeding the volume regulation capacity of the cerebral blood and cerebrospinal fluid. Volume buffering of the nervous tissue may even be functioning in parallel, in conjunction with the "fluid" compartments. Of the existing volume regulatory models, the following are discussed: osmotic feedback (buffering) preventing major fluid shifts in osmotic or pressure disequilibrium at the blood brain barrier (BBB), and the 4-compartment model, which under steady-state conditions can be regarded as an analogue of systemic tissue volume regulation, i.e. secretion of fluid at the BBB, bulk flow of interstitial space fluid (ISF) in the brain and absorption via the cerebrospinal fluid (CSF). The most recent data are presented, confirming that accommodation of space occupation by the nervous tissue is achieved via shrinkage of the extracerebral fluid (ECF), while the cell volume remains relatively constant. These findings confirm Hakim's classical hypothesis, based on biomechanical considerations, that the brain behaves like a sponge. The data presented in this survey point to a more general hypothesis: the brain interstitial space can vary in volume according to physiological and pathological stress, within certain bounds this being a reversible process which does not affect brain function. The potential role of the central neuro-endocrine system in brain volume regulation is discussed. Vasopressin (AVP) and atriopeptin (ANP) probably, function within the brain via a paracrine mechanism, as physiological regulators of brain cell and ISF volume.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Dóczi Tdoi
10.1007/BF01405174subject
Has Abstractpub_date
1993-01-01 00:00:00pages
1-8issue
1-2eissn
0001-6268issn
0942-0940journal_volume
121pub_type
杂志文章,评审abstract:BACKGROUND:Coregistration of any neuroimaging studies into treatment planning for stereotactic radiosurgery became easily applicable using the Leksell Gamma Knife 4C, a new model of gamma knife. The authors investigated the advantage of this image processing. METHOD:Since installation of the Leksell Gamma Knife 4C at ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0279-4
更新日期:2009-05-01 00:00:00
abstract::We describe a patient with primary CNS lymphomas, awake despite an extreme ICP elevation. A 48-year-old woman presented with headache since 1 month, and bilateral papillary edema was observed. Magnetic resonance imaging revealed diffuse infiltration around the petrous bone. Following external ventricular drainage (EVD...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-020-04231-x
更新日期:2020-08-01 00:00:00
abstract::Lesions generated by the passage of micro-needles through vessel walls are of concern because any lesion may significantly alter hemodynamics of an anastomosis. To study this problem, three different needles were tested on the exposed carotid arteries of 30 rats: the 100 mu taper point, the 100 mu cutting point, and t...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01402308
更新日期:1985-01-01 00:00:00
abstract::To understand the clinicopathology features of leptomeningeal dissemination of malignant gliomas, a total of 157 consecutive patients treated between 1978 and 1989 were analysed. Twenty-two patients (14%) were judged to have dissemination. In 20 patients, the dissemination was diagnosed antemortem. Eleven patients had...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01476415
更新日期:1994-01-01 00:00:00
abstract::Migration of the catheter tip of a ventriculoperitoneal shunt (VPS) through a patent processus vaginalis (PV) has seldom being reported. In this series, we analyzed all cases of inguinoscrotal migration of an VPS catheter at our center. Between 1975 and 2015, 295 VPS insertions were performed. In seven infants (2.3%),...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-017-3243-8
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:Early repair of myelomeningocoele (MM) is associated with decreased morbidity and mortality. In sub-Saharan Africa, the peculiar harsh economic and social realities make late presentation, malnutrition and sepsis at presentation prevalent. As these factors may affect surgical repair, the aim of this study was...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-008-0002-x
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:The endoscopic transorbital approach has been recently proposed for the surgical management of spheno-orbital lesions as an alternative to craniotomy surgeries. METHOD:We analyze the technical nuances and what we have changed as our experience increased after the first operations performed for 12 different ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3529-5
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:There is no universal management protocol concerning invasive malignant tumors of the scalp with bone and dura mater invasion. The aims of this study were to report and discuss our experience in the management of these forms of tumors. METHODS:We retrospectively reviewed all consecutive patients of microsur...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-020-04525-0
更新日期:2020-12-01 00:00:00
abstract:INTRODUCTION:Desmoid-type fibromatosis (DTF) frequently arises in patients with neuromuscular choristoma (NMC). We hypothesize that NMC-associated DTF occurs in soft tissues innervated by the NMC-affected nerve, and arises from CTNNB1-mutated (myo) fibroblasts within or directly adjacent to the NMC. MATERIALS AND METH...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-04178-8
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Spinal dural arterio-venous fistulae (SDAVF) are slow-flow extramedullary vascular lesions which account for 75-80% of all spinal vascular malformations. At present there is no agreed view with regard to the best therapeutic option being surgical or endovascular, and several reports favour one or other form ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-008-1560-7
更新日期:2008-06-01 00:00:00
abstract::The authors present the case of a 66-year-old female who developed progressive pulsating exophthalmos, a bruit, and conjunctival chemosis 7 months after a head injury. These symptoms, though highly suspicious of carotid cavernous fistula, were caused by an arteriovenous fistula (AVF) between the inferolateral trunk (I...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-011-1226-8
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:The evolution of pituitary surgery has made it a safe and effective form of treatment; however, risks of inadequate tumor resection, cerebrospinal fluid (CSF) leak, pituitary dysfunction, and vascular injury still exist. The use of intraoperative ultrasonography (IOUS) in pituitary surgery has been well desc...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-020-04674-2
更新日期:2021-01-05 00:00:00
abstract::We present a possible mechanism of intracerebral peritumoural haemorrhage in meningioma based on the clinical data of three of our cases. A meningioma manifesting intracerebral haemorrhage is uncommon and some sporadic case reports have been presented, but without any proven mechanisms. We are presenting three cases o...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010050019
更新日期:2000-01-01 00:00:00
abstract::A new atraumatic method for patency and blood flow control of microvascular anastomoses has been developed. Sounds proximal and distal to a suture line are separately detected by means of two specially modified miniature microphones built together as an auscultation unit and named a diplo-microphone. Transmission of t...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF02074518
更新日期:1980-01-01 00:00:00
abstract:BACKGROUND:Registration accuracy is a main factor influencing overall navigation accuracy. Standard fiducial- or landmark-based patient registration is user dependent and error-prone. Intraoperative imaging offers the possibility for user-independent patient registration. The aim of this paper is to evaluate our initia...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3641-6
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Little is known about the nature of spine surgery training received by European neurosurgical trainees during their residency and the level of competence they acquire in dealing with spinal disorders. METHODS:A three-part questionnaire entailing 32 questions was devised and distributed to the neurosurgical ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0259-8
更新日期:2009-06-01 00:00:00
abstract::The authors report a series of 37 cases of unruptured aneurysms, admitted and operated upon over a 5 year period (1985-1990), which represents an incidence of 18% of the total number of aneurysm patients operated upon during this period. These unruptured aneurysms were discovered in 4 types of circumstances: 1) Associ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01541779
更新日期:1992-01-01 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
pub_type: 杂志文章
doi:10.1007/s007010050364
更新日期:1999-01-01 00:00:00
abstract::We investigated the vasodilatory effect of intracisternal (i.c.) and intravenous (i.v.) administration of calcitonin gene-related peptide (CGRP) on arterial narrowing after experimental subarachnoid hemorrhage (SAH). Forty-one rabbits were divided into five groups: control (normal animals); SAH plus i.c. infusion of v...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01541797
更新日期:1992-01-01 00:00:00
abstract::We describe an exceptional case of a frontal convexity chondroma arising at the site of a compound depressed skull fracture operated on 12 years earlier. We conclude that intracranial chondroma should be included in the differential diagnosis of a calcified mass for the patients who had had a compound, depressed skull...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-004-0430-1
更新日期:2005-03-01 00:00:00
abstract::The characteristic findings of metrizamide CT cisternography in two cases of epidermoid are reported. The main finding was a "cauliflower-like" appearance and was thought to be caused by the irregular interstices of epidermoids. Metrizamide CT cisternography may be helpful in making a diagnosis of an epidermoid. ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01400854
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:Early recognition of emerging delayed neurological deficits (DND) in patients after subarachnoid haemorrhage (SAH) is not always possible by transcranial Doppler sonography. Aim of this study was to investigate a) whether determination of blood flow velocities in deep cerebral basal veins can predict DND in ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010170033
更新日期:2001-08-01 00:00:00
abstract::In a period of 13 years 978 cases of severe head injuries were operated on in our clinic. An analysis of the medical reports includes injuries of the superficial dural sinus (39 cases = 4%): among these injuries of the anterior and central part of the superior sagittal sinus (66 per cent), injuries of the transverse s...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01541788
更新日期:1992-01-01 00:00:00
abstract::We describe an extremely rare example of Ewing's sarcoma (ES)/peripheral primitive neuroectodermal tumour (pPNET) originating from the jugular foramen. The patient was a 10-year-old boy who presented with progressive symptoms due to right lower cranial nerve palsies. Computed tomographic (CT) scan and magnetic resonan...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-008-1601-2
更新日期:2008-08-01 00:00:00
abstract::The right coronal sutures of twelve (12) newborn rabbits were fixed with commercially available, self-reinforced poly-L-lactide miniplates, with eight (8) rabbits sham treated with titanium miniplate fixation as reference experiments, in order to demonstrate the possible effects on skull growth. After six (6) months f...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01400649
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Optimal selection of idiopathic normal pressure hydrocephalus (iNPH) patients for shunt surgery is challenging. Disease State Index (DSI) is a statistical method that merges multimodal data to assist clinical decision-making. It has previously been shown to be useful in predicting progression in mild cogniti...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-016-2980-4
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND:Complex aneurysm shape is a predominant risk factor for aneurysm rupture but its impact on clinical outcome after clipping remains unclear. The objective of the present study was to compare complications and morbidity after clipping of unruptured single-sac aneurysms (SSAs) and aneurysms with multiple sacs (...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3675-9
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:Radiosurgical treatment of brain lesions near motor or language eloquent areas requires careful planning to achieve the optimal balance between effective dose prescription and preservation of function. Navigated brain stimulation (NBS) is the only non-invasive modality that allows the identification of funct...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-014-2079-8
更新日期:2014-06-01 00:00:00
abstract::A recent modification of the occipital transtentorial approach to the pineal region and medial-posterior hemisphere is described. The patient is operated upon in a lateral reclining (park bench) position with the side to undergo occipitoparietal craniotomy, slightly dependant. Following dural opening to the margins of...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01405427
更新日期:1990-01-01 00:00:00
abstract::In 15 patients without acute brain injury the concentrations of Neuron-specific Enolase (NSE), S-100 Protein (S-100), Creatine Kinase (CK), and Creatine Kinase BB isoenzyme (CK-BB) in ventricular cerebrospinal fluid (CSF) were measured immediately after lateral ventricle cannulation for diagnostic or treatment purpose...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01400675
更新日期:1991-01-01 00:00:00