Papers by Franz Quehenberger
Current Opinion in Pediatrics, Dec 1, 2018
Zentralblatt für Neurochirurgie, Sep 11, 2002
Radiosurgery is either a primary or an adjunct management approach used to treat patients with ve... more Radiosurgery is either a primary or an adjunct management approach used to treat patients with vestibular schwannomas. The goals are long-term tumour growth control, maintenance of cranial nerve function and prevention of new neurologic deficiencies. We sought to determine long-term outcomes measuring the potential benefits against the neurological risks of radiosurgery. 278 patients with vestibular schwannomas underwent Gamma Knife radiosurgery as a treatment modality for from April 1992 to November 2001. The long-term results of 60 patients were evaluated who received radiosurgery as primary treatment. 12 cases presented with previously performed subtotal microsurgical resection or recurrence of disease (12-96 months, median 39). The median treatment volume was 3.8 ccm and the median dose to the tumour margin was 12 Gy. The median patient follow-up time was 88 months (range 72-114 months). Four tumours progressed after primary radiosurgery. Tumour control rate was 93%. Useful hearing (Gardner-Robertson I/II) was preserved in 16 patients (55%). Clinical neurological improvement occurred in 36 patients (60%). Adverse effects comprised neurological symptoms (incomplete facial palsy) (House-Brackman II/III) in five cases (three recovered completely), mild trigeminal neuropathy in three cases, and morphological changes displaying rapid enlargement of preexisting macrocysts in two patients and tumour growth in two other ones. Microsurgical resection was performed in three cases (5%) and one patient underwent a shunting procedure because of hydrocephalus formation. In patients who had undergone previous microsurgery, neither new cranial nerve deficit nor any tumour growth was observed. Radiosurgery performed with current techniques proved to be an effective method for growth control of vestibular schwannomas with both a low mortality rate and a good quality of life. An increasing percentage of patients will undergo radiosurgery as accessibility to this alternative increases, and more data regarding long-term follow-up are available. It is a post-operative complementary treatment for partially removed tumours. Accordingly, radiosurgery is a useful method for the management of properly selected patients.
Journal of Affective Disorders, Apr 1, 2000
Dental Traumatology, Feb 1, 2000
Gastroenterology, Jul 1, 2004
Journal of Clinical Immunology, Nov 19, 2021
Experimental Aging Research, Jun 7, 2010
Journal of Medical Genetics, Jun 1, 2005
Nephrology Dialysis Transplantation, Oct 1, 2003
Acta Psychiatrica Scandinavica, Aug 1, 1998
Journal of Clinical Immunology, Feb 9, 2022
International Journal Of Legal Medicine, Jun 9, 2011
Pediatric Research, Apr 1, 1999
European Journal of Cancer, Jul 1, 2011
Journal of neurosurgery, Aug 1, 2010
Multiple Sclerosis Journal, Dec 1, 2002
Tumor necrosis factor-a (TNF-a) is involved in the pathogenesis of multiple sclerosis (MS). It ha... more Tumor necrosis factor-a (TNF-a) is involved in the pathogenesis of multiple sclerosis (MS). It has to be released from its cell membrane-bound precursor by proteolytic cleavage. This is mainly performed by a member of the ADAM (a disintegrin and metalloproteinase) family of enzymes, TNF-a-converting enzyme (TACE, ADAM 17). In a longitudinal study on 11 relapsing-remitting MS patients, we qualitatively determined mRNA expression of TNF-a and TACE in peripheral blood mononuclear cells (PBMCs) without ex vivo stimulation. mRNA expression was related to disease activity as assessed by monthly gadolinium (Gd)-enhanced brain magnetic resonance imaging (MRI). Patients found positive for TACE mRNA in PBMCs showed a significantly higher mean number of new Gd-enhancing lesions per scan one month following PBMC sampling.
The American Journal of Medicine, Oct 1, 2000
International Journal of Surgery
Background and Objectives: This study aims to review how the introduction of propranolol as the p... more Background and Objectives: This study aims to review how the introduction of propranolol as the primary treatment option for children with infantile hemangiomas (IHs) has affected the use of other treatment options at our institution and to determine the indications for surgical treatment of children with IHs in the propranolol era. Patients and Methods: The authors conducted a single-center, noncompeting, historical/retrospective cohort study to review all cases referred to the institution for IH evaluation from 2005 to 2020. The authors analyzed the complete charts of patients who received surgery from 2011 to 2020 and evaluated the reasons for each surgical intervention. Detailed descriptive statistics are provided. Logistic regression analysis and Pearson’s χ 2-test were applied. Results: During the study period, 592 children received treatment. From 2011, oral propranolol (n=268; 74%) and surgery (n=95; 26%) were the only treatments of choice for complicated IH cases. A signifi...
Frontiers in Pediatrics
The aim of this study was to determine whether the use of analgesia and sedation (AS) as opposed ... more The aim of this study was to determine whether the use of analgesia and sedation (AS) as opposed to general anesthesia (GA) for closed reduction and spica casting of children with severe developmental dysplasia of the hip (DDH) influenced the long-term incidence of avascular necrosis (AVN). In a prospective, randomized, single-blinded clinical trial we investigated 100 pediatric patients with DDH type IIIa, IIIb, and IV (according to Graf classification), who were randomly assigned into the group receiving AS, and the group receiving GA. Baseline demographics, splint duration, and type of DDH were carefully assessed. The presence of AVN was assessed at the follow-up visits at 1 and 7 years after the end of treatment. The AS-group consisted of 50 patients (46 girls) with 76 hips affected (n = 11/Type-IIIa, n = 32/Type-IIIb, and n = 33/Type-IV). The GA-group consisted also of 50 patients (44 girls) with 78 hips involved (n = 15/Type-IIIa, n = 34/Type-IIIb, and n = 29/Type-IV). At 7-ye...
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Papers by Franz Quehenberger