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  • 1
    Electronic Resource
    Electronic Resource
    Atrial natriuretic polypeptide in patients with subarachnoid haemorrhage due to aneurysmal rupture (1989)
    Springer
    Acta neurochirurgica 97 (1989), S. 53-61 
    Details
    ISSN: 0942-0940
    Keywords: Atrial natriuretic polypeptide (ANP) ; hyponatremia ; subarachnoid haemorrhage ; cerebral salt wasting syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Measurement of plasma alpha-humanANP (ANP) and antidiuretic hormone (ADH) in 28 cases with aneurysmal subarachnoid haemorrhage (SAH) was carried out, and then compared with control subjects who were infused with hypertonic saline. In cases with hyponatremia (HN), statistical correlation between control subjects and cases without HN was not evident with regards to ANP and plasma osmolality (Posm), excreted fraction of filtrated sodium (FENa) and urinary Na/K. Furthermore, they secreted supernumerarilly in spite of HN. Cases with HN were further subdivided into two groups, they were those cases with negative total sodium balance at the time of appearance of HN, and those cases without total negative sodium balance. In the former, central venous pressure had a tendency to decrease, however, secretion of ANP and ADH was statistically not different in either groups. It appears that ANP regulated urinary sodium excretion against an osmotic or sodium load acts as a maintenance of homeostasis as an osmotic regulator. Cases with HN in which secretion of ADH was physiological, ANP secreted supernumerarilly in spite of hypoosmonaemia and hypovolaemia. Our findings may contribute to a better understanding of the pathophysiological processes leading to hyponatremia in cases with cerebral disorders, and may help to improve the treatment possibilities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01577740
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  • 2
    Electronic Resource
    Electronic Resource
    Time course of csf lactate level in subarachnoid haemorrhage correlation with clinical grading and prognosis (1989)
    Springer
    Acta neurochirurgica 99 (1989), S. 127-134 
    Details
    ISSN: 0942-0940
    Keywords: Intracranial aneurysm ; subarachnoid haemorrhage ; cerebrospinal fluid ; lactic acidosis ; cisternal drainage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Cisternal and/or ventricular cerebrospinal fluid (CSF) and arterial blood lactate and acid-base balance were measured serially in 38 patients with aneurysmal subarachnoid haemorrhage (SAH). Based on daily clinical assessment, the patients and accordingly the samples were divided into two groups according to the grading of the World Federation of Neurosurgical Societies (W.F.N.S.). In cisternal CSF, samples of Grade III–V showed significantly higher lactic acidosis than those of Grade I–II. The time course of lactate and pH in poor prognosis groups had a significant tendency of lactic acidosis, especially on the 5th, 6th, 7th day after SAH. Ventricular CSF lactate increased even without CSF acidosis in Groups III–V. Measurement of CSF lactate, especially from the cisterna magna is useful as an indicator of prognosis and changes of intracranial environment following SAH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402321
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  • 3
    Electronic Resource
    Electronic Resource
    Change in regional cerebral blood flow following glycerol administration predicts (1994)
    Springer
    Acta neurochirurgica 129 (1994), S. 171-176 
    Details
    ISSN: 0942-0940
    Keywords: Cerebral blood flow ; glycerol ; normal pressure hydrocephalus ; shunt surgery ; xenon enhanced computerized tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Cerebral haemodynamics were measured in 22 adult patients with secondary normal pressure hydrocephalus (NPH) before and after glycerol administration to determine which patients might benefit from a shunt procedure. Of these 22 patients, 14 were found to be shunt-responsive (group 1) and 8 were shunt-unresponsive (group 2). Measurement of regional cerebral blood flow (rCBF) was performed by xenon-enhanced computerized tomography (XeCT). Clinical factors such as the Evans' index and the presence or absence of brain atrophy, periventricular lucency (PVL), ventricular reflux, stagnation of cerebrospinal fluid on cisternography, and increased intracranial pressure were not statistically significant predictors of shunt responsiveness. Preoperative rCBF values did not differ between groups 1 and 2. The rCBF value in every cerebral region of group 1 patients increased significantly after shunting except for the basal ganglia. On preoperative rCBF measurement, all rCBF values in group 1 significantly increased after glycerol administration except for the periventricular lucency (PVL). Patients in group 2, however, lacked such an increase in rCBF. We therefore propose that, in patients with secondary NPH, shunt surgery will be likely to be effective in those with a demonstrated rise in rCBF after glycerol administration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01406498
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  • 4
    Electronic Resource
    Electronic Resource
    Transoccipital transtentorial approach for removal of cerebellar haemangioblastoma (1981)
    Springer
    Acta neurochirurgica 59 (1981), S. 195-208 
    Details
    ISSN: 0942-0940
    Keywords: Haemangioblastoma ; supratentorial approach ; microsurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Supratentorial approach through the cerebellar tentorium for removal of cerebellar haemangioblastomas located on the anterosuperior surface of the cerebellum is described. This approach with the aid of microsurgery is especially suitable for a haemangioblastoma involving the midbrain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01406349
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  • 5
    Electronic Resource
    Electronic Resource
    Successful removal of pontine haematoma due to rupture of cryptic arteriovenous malformation (1983)
    Springer
    Acta neurochirurgica 69 (1983), S. 69-75 
    Details
    ISSN: 0942-0940
    Keywords: Pontine haematoma ; arteriovenous malformation ; cerebellopontine angle tumour ; surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary One case of a pontine haematoma with clinical symptoms of cerebellopontine angle tumour is described. The haematoma was successfully evacuated, and preoperative neurological deficits disappeared except for minimal right fifth nerve palsy. The pathological specimen was diagnosed as arteriovenous malformation. Lateropontine haematomas must be included in the differential diagnosis of cerebellopontine angle tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02055855
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  • 6
    Electronic Resource
    Electronic Resource
    Early aneurysm surgery and dehydration therapy in patients with severe subarachnoid haemorrhage without ICH (1996)
    Springer
    Acta neurochirurgica 138 (1996), S. 1050-1056 
    Details
    ISSN: 0942-0940
    Keywords: Dehydration therapy ; early surgery ; patients management ; severe subarachnoid haemorrhage ; vasospasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We prospectively analysed treatment results in patients with severe subarachnoid haemorrhage (SAH) who underwent early aneurysm surgery, and were managed by dehydration therapy. We studied a total of 31 patients with poor-grade SAH including 18 in grade IV, and 13 in grade V according to the WFNS classification system. Patients who were older than 70 years of age, or those with an intracerebral haemorrhage or absent brainstem response were excluded from this study. At surgery, clot evacuation from the peribrainstem cisterns with/without external decompression was performed following obliteration of the aneurysmal neck. In the early postoperative period, patients were maintained in negative water balance using osmotic diuretics. When delayed ischaemic deficits had manifested themselves, the pulmonary wedge pressure and/or central venous pressure was immediately increased by the rapid injection of albumin until hypovolaemia reverted to normovolaemia with the continuous administration of dobutamine. The outcome at 3 months was good recovery in 16 (52%) patients, moderate disability in 3 (10%), severe disability in 5 (16%), a vegetative state in 1 (3%), and death in 6 (19%). We thought that early aneurysm surgery and postoperative dehydration therapy in the acute stages of brain oedema resulting from primary brain damage are effective in the treatment of patients with severe SAH but reversilbe primary brain damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412307
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  • 7
    Electronic Resource
    Electronic Resource
    Sea anemone (Actinia equina) myosin
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 104 (1993), S. 509-514 
    Details
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(93)90275-A
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  • 8
    Electronic Resource
    Electronic Resource
    Determination of positions of reinforcing bars in reinforced concrete by backscattered gamma rays-II. Experimental and Monte Carlo results
    Amsterdam : Elsevier
    Applied Radiation and Isotopes 44 (1993), S. IN3-IN4+1279-1284 
    Details
    ISSN: 0969-8043
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0969-8043(93)90078-O
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  • 9
    Electronic Resource
    Electronic Resource
    Locating the positions of reinforcing bars in reinforced concrete using backscattered gamma rays
    Amsterdam : Elsevier
    International Journal of Radiation Applications & Instrumentation. Part 41 (1990), S. 1013-1018 
    Details
    ISSN: 0883-2889
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0883-2889(90)90168-G
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  • 10
    Electronic Resource
    Electronic Resource
    Plasmons of an electron gas on a tubule
    Amsterdam : Elsevier
    Physica B: Physics of Condensed Matter 194-196 (1994), S. 1055-1056 
    Details
    ISSN: 0921-4526
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0921-4526(94)90857-5
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