Hans-Rudolf Eggert

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The findings of a 10-year study (1976 to 1986) conducted in southwest Germany on hemangioblastomas (HBL's) of the central nervous system (CNS) are presented. During that period, 47 HBL's were diagnosed and surgically removed in 44 patients, with a good postoperative survival rate and prognosis. The majority (83%) of these tumors were located in the(More)
Considering the increasing use of lasers in neurosurgery and the increasing number of wavelengths of laser light becoming available, we evaluated optical properties between 200 and 900 nm of meninges, normal human brain tissue, and brain tumors. We used a two-beam spectral photometer with an integrating sphere as the measuring instrument. The material(More)
Within 3 years, 34 patients with lesions of the posterior part of the orbit, the optic canal, and the superior orbital fissure were operated using different surgical approaches. The results on the functional and cosmetic outcomes were compiled. The pterional approach was shown to be the most useful one. It can be used in intradural as well as in extradural(More)
CNS manifestations were studied in 97 gene carriers of von Hippel-Lindau syndrome (HLS). Haemangioblastomas of the CNS were found in 43 patients (44%), 23 females and 20 males. The mean age at diagnosis was 39 years (12-73 years). A total of 93 haemangioblastomas were detected of which 74% were intracranial and 26% were located in the spinal cord; 75% were(More)
One hundred and fifty patients with intracranial aneurysms, operated on consecutively in the early stage in our department, were re-evaluated retrospectively. Seven surgeons operated on 159 aneurysms in 150 patients. Seventy-nine percent of the patients were in grades I–III (scale of Hunt and Hess), 21% in grades IV–V. Seventyone percent had a severe(More)
Cerebral lesions made by focal neodymium:yttrium-aluminum-garnet (Nd:YAG) laser irradiation of the rat forebrain were studied in adult Wistar rats. For the analysis of time-dependent changes, the brains of 28 animals were irradiated with a constant energy density of 461 J/cm2. In this series, survival time ranged from 0.5 hours to 80 days. Immediately after(More)