Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    Mortality study of patients with subarachnoid haemorrhage at University hospitals and their affiliated hospitals in Japan (1982)
    Springer
    Acta neurochirurgica 63 (1982), S. 175-183 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study was undertaken to examine the differences in aneurysm statistics between University hospitals where subacute or chronic patients are primarily treated and University-affiliated hospitals where both acute and chronic cases are also admitted. In each hospital group, the transition of the statistics in the last decade was studied. The purpose of this study was also to see if any conclusion could be drawn regarding the surgical treatment of acute cases. The death rate for all aneurysm cases admitted is 8% at University hospitals, whilst that at affiliated hospitals is roughly 30% during the 1970s. The operative death rate at the University hospitals is 3%, whilst that at affiliated hospitals is 16% which improved at one affiliated hospital to 8% in the 1980–1981 period. Morbidity also improved in the latest series in the affiliated hospital. These improvements are considered to be due to the change of operative and postoperative policies for acute cases to : limited surgical indications for grade IV patients, extensive cisternal clot removal at the time of surgery, and oral administration of Ticlopidine, a new antiplatelet agent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01728870
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Occipital epidural abscess with sinus phlebitis due to chronic osteomyelitis (1982)
    Springer
    Acta neurochirurgica 66 (1982), S. 207-211 
    Details
    ISSN: 0942-0940
    Keywords: Occipital osteomyelitis ; epidural abscess ; staphylococcus epidermides ; sinus phlebitis ; intracranial pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report an unusual case of occipital osteomyelitis originating from an old scalp wound, and causing subsequent sinus thrombosis and an epidural abscess. This is the first such case reported. The mechanism of the symptoms and the literature are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02074507
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Normovolaemic induced hypertension therapy for cerebral vasospasm after subarachnoid haemorrhage (1990)
    Springer
    Acta neurochirurgica 103 (1990), S. 18-26 
    Details
    ISSN: 0942-0940
    Keywords: Cerebral vasospasm ; haemorrhagic infarction ; intracranial aneurysm ; normovolaemic induced hypertension therapy ; subarachnoid haemorrhage ; Swan-Ganz catheter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We showed that normovolaemic induced hypertension therapy was effective in reducing ischaemic symptoms attributed to cerebral vasospasm in 41 patients after subarachnoid haemorrhage. By inducing hypertension to 25% to 50% above normal systolic arterial blood pressure, we observed that in 17 of 24 cases (71%) neurological deficits improved. In four cases of haemorrhagic infarction, the blood pressure rose to over 50% of systolic arterial pressure, and a low density area was confirmed on computerized tomography (CT) scan prior to vasospasm. Induced hypertension was therefore not considered when a low density area was revealed on CT scan. Restriction of fluid input is usually a factor in producing hypovolaemia after a neurosurgical operation. Intravascular volume expansion has been reported effective in reversing ischaemic deficits. However, according to Poiseuille's equation, increasing blood volume to a state of hypervolaemia can not enhance flow. The cerebral blood flow (CBF) was raised by increasing perfusion pressure, reducing viscosity, or increasing blood vessel diameter. Intravascular volume expansion elevates not only systemic arterial pressure, but also pulmonary artery wedge pressure over 18 mmHg and cardiac index over 2.2. Since pulmonary oedema and congestive heart failure may develop, one should monitor haemodynamic parameters with the Swan-Ganz catheter as a preventive measure. We emphasize that normovolaemic induced hypertension, maintaining haemodynamics subset 1 of the comparable haemodynamic subsets, is effective in raising perfusion pressure of CBF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01420187
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Dose escalation trial of a novel calcium antagonist, AT877, in patients with aneurysmal subarachnoid haemorrhage (1990)
    Springer
    Acta neurochirurgica 107 (1990), S. 11-15 
    Details
    ISSN: 0942-0940
    Keywords: Subarachnoid haemorrhage ; chronic cerebral vasospasm ; calcium antagonist ; AT877 ; HA 1077
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The initial dose-escalating clinical trial of a novel calcium antagonist, AT877, in patients with aneurysmal subarachnoid haemorrhage is reported. AT877 is characterized by its strong spasmolytic activity, its inhibition of intracellular calcium ion activity, and the inhibiton of several protein kinases. A total of 113 patients (Hunt and Hess grades I to IV) who had undergone surgery within 3 days of aneurysmal rupture entered the study. Patients were divided into 5 groups according to the total daily dose of AT877: I: 20 mg; II: 40 mg; III: 60 mg; IV: 90 mg; and V: 120–180 mg. AT877 was given by intravenous infusion over 30 min two or three times a day for 14 days after surgery. Although AT877 did not completely abolish angiographic vasospasm, severe vasospasm was seen less frequently in patients given higher doses. Vasospasm was the cause of a poor clinical outcome (Glasgow outcome scale rating 3 or greater) in 19%, 7%, 9%, 8%, and 6% of the patients in groups I to V, respectively. The results indicated a favourable clinical effect of AT877 at doses above 40 mg per day. Only mild hypotension was seen, even when 60 mg of AT877 was infused over 30 min. AT877 appears to be effective in patients with subarachnoid haemorrhage. Part of its effect may be attributable to protection of the brain from ischaemic insults due to chronic cerebral vasospasm. However, the drug still needs to be evaluated in a placebo-controlled double-blind trial (which is currently being carried out).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402606
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    The effects of HA1077 on the cerebral circulation after subarachnoid haemorrhage in dogs (1991)
    Springer
    Acta neurochirurgica 110 (1991), S. 185-188 
    Details
    ISSN: 0942-0940
    Keywords: HA1077 ; cerebral vasospasm ; subarachnoid haemorrhage ; cerebral blood flow ; calcium antagonist
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We examined the effects of the recently developed calcium antagonist HA1077 on cerebral haemodynamics during the chronic stage of the two-haemorrhage canine model system of vasospasm. Regional cerebral blood flow (rCBF), regional cerebral blood velocity and regional cerebral blood volume in the canine parietal cortex were measured by Laser-doppler flowmeter. On the 7th day after the initial injection of autogenous blood, subarachnoid haemorrhage (SAH) produced a significant decrease in rCBF (59% of control, p〈0.05) and Hood velocity (48% of control, p〈0.05), with no remarkable change in blood volume (108% of control). Bolus intravenous administration of HA1077 (0.1–0.3 mg/kg) dose-dependently increased the rCBF and blood velocity, without significantly changing the blood volume on Day 7 after SAH. HA1077 improves haemodynamic function manifested by an increase in rCBF and velocity in this SAH model, and may be suitable for the treatment of vasospasm in patients with SAH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01400689
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    Preservation of cochlear nerve function in acoustic neurinoma surgery (1993)
    Springer
    Acta neurochirurgica 123 (1993), S. 8-13 
    Details
    ISSN: 0942-0940
    Keywords: Acoustic neurinoma ; cochlear nerve ; hearing preservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A total of 55 cases with unilateral acoustic neurinoma which were operated on by the lateral suboccipital approach was studied to elucidate factors which influence postoperative hearing acuity. We analyzed several factors: preoperative hearing level, tumour size, tumour consistency (cystic or solid), and anatomical location of the cochlear nerve. The size of the tumours ranged from 1.2 to 5.8 cm in diameter. Thirty of 55 cases (55%) preoperatively had remaining cochlear function. The smaller the size of tumour, the higher was the preoperative hearing level excepting those tumours with a diameter of 5 cm or greater, which had relatively good hearing and often contained large cysts. As to the consistency of the tumours, 41 were solid and 14 were cystic, where 19 (46%) and 11 (79%) cases had had preoperative hearing, respectively. Anatomical continuity of the cochlear nerve was maintained at surgery in 15 of 30 cases with preoperatively remaining hearing; cochelar function was preserved after surgery in 9 of the 15 cases. It was located counter-clockwise (caudally) to the facial nerve at an angle of 50 degrees on average when they were projected on the right side. The distance or interrelation between the two nerves had no bearing on postoperative hearing preservation. Postoperatively, hearing acuity was improved in 6 cases (20%) with a mean value of 5.6 dB, unchanged in 3 (10%), and deteriorated in 21 (70%) among the 30 cases with remaining preoperative-hearing. When the tumour was less than 2 cm or cystic, better hearing preservation was expected. Hearing was preserved in 4 cases of the 19 solid tumours (21%) and in 5 of the 11 cystic tumours (45%). No cases with preoperative hearing deficit greater than 60 dB showed postoperative improvement to a useful hearing level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01476279
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    Development of the operating computerized tomographic scanner system for neurosurgery (1991)
    Springer
    Acta neurochirurgica 111 (1991), S. 61-63 
    Details
    ISSN: 0942-0940
    Keywords: Computerized tomography ; neurosurgery ; clinical imaging ; operating room
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A computerized tomographic (CT) scanner system for intraoperative imaging is presented. The system consists of the following: 1) CT scanner with a mobile gantry, 2) digitally controlled operating table with central processing unit (CPU) and encoder unit; the table can be controlled by the scanner computer as accurately as the scanner bed, and 3) exclusively designed head fixation devices. It allows us to scan the patient on the operating table in the operating room pre-operatively, intra-operatively and immediately after surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402515
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    Primary chronic intrasellar haematoma: A case report (1992)
    Springer
    Acta neurochirurgica 114 (1992), S. 147-150 
    Details
    ISSN: 0942-0940
    Keywords: Intrasellar haematoma ; transsphenoidal surgery ; hypopituitarism ; pituitary apoplexy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This report describes a rare case of primary intrasellar haematoma in a 66 year-old man with hypopituitarism. Computerized tomography (CT) and magnetic resonance imaging (MRI) showed an intrasellar cystic lesion with small suprasellar extension. Transsphenoidal surgery revealed that the lesion was a chronic haematoma, without evidence of a tumour or vascular anomaly. Pathological diagnosis confirmed this. This is the first report of a chronic intrasellar haematoma, which is probably primary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01400605
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    New radiolucent head fixation made of engineering plastics for intraoperative CT scanning (1994)
    Springer
    Acta neurochirurgica 127 (1994), S. 121-123 
    Details
    ISSN: 0942-0940
    Keywords: Instrumentation ; head fixation ; intraoperative CT ; open neurosurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A newly developed head fixation for intraoperative computerized tomographic (IOCT) scanning is presented. The system is developed based on the head holder of multipurpose head frame and is made of two kinds of advanced engineering material; carbon fiber reinforced plastic for head holder and frames, polyamide-imide polymer for joints, screws, and head pin. Clinical tests including autoclaving and sterilization were performed and revealed all materials had sufficient strength for clinical use. This fixation system enables us to increase the efficacy of IOCT scanning during open-field neurosurgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01808559
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    Effects of prophylactic intrathecal administrations of nicardipine on vasospasm in patients with severe aneurysmal subarachnoid haemorrhage (1994)
    Springer
    Acta neurochirurgica 131 (1994), S. 19-25 
    Details
    ISSN: 0942-0940
    Keywords: Cerebral vasospasm ; cerebral aneurysm ; calcium antagonist ; nicardipine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Calcium antagonists are currently most widely used for chronic cerebral vasospasm after aneurysmal subarachnoid haemorrhage (SAH). However, the vasodilatory effects of systemically administered calcium antagonists can be limited secondary to hypotension. We previously compared intrathecal and intravenous routes of administration of nicardipine. Intrathecal administration of nicardipine significantly dilated spastic basilar arteries on day 7 in a two-haemorrhage canine model of vasospasm. In the present communication, the effects of prophylactic, serial administration of intrathecal nicardipine on vasospasm was examined in 50 patients. Patients were classified as Fisher SAH group 3 and all had their aneurysms clipped within 3 days of SAH. Following placement of a cisternal drain, 2 mg of nicardipine was injected, three times each day for an average of 10 days. The control group consisted of 91 similar patients with cisternal drainage not treated with nicardipine. Intrathecal administration of nicardipine decreased the incidence of symptomatic vasospasm by 26%, angiographic vasospasm by 20% and increased good clinical outcome at one month after the haemorrhage by 15%. Postoperative angiograms revealed that patients in the nicardipine group showed less vasospasm of major cerebral arteries, near the tip of a drain in the basal cistern, but vasospasm in the A2 and M2 segments was not decreased. Radio-isotope cisternography suggested that nicardipine might not reach the subarachnoid space around A2 and M2 segments. Nine patients complained of headache probably secondary to nicardipine induced vasodilation. Two patients suffered from mengingitis, both were successfully treated. Intrathecal administration nicardipine appears to be effective in the treatment of vasospasm, but side effects were significant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401450
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...