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5 results on '"Torstein R. Meling"'

1. Molecular Cytogenetic Analysis of a Gliosarcoma with Osseous Metaplasia

Author

Torstein R. Meling, Petter Brandal, Hanne Sofie S Dahlback, Ludmila Gorunova, David Scheie, Francesca Micci, and Sverre Heim

Subjects
Male, Pathology, medicine.medical_specialty, Gliosarcoma, Biology, Lateral Ventricles, Genetics, medicine, Chromosomes, Human, Humans, Fibrosarcoma, Molecular Biology, In Situ Hybridization, Fluorescence, Genetics (clinical), Aged, Comparative Genomic Hybridization, Metaplasia, Brain Neoplasms, Mesenchymal stem cell, Karyotype, medicine.disease, Karyotyping, %22">Fish , Osseous metaplasia, Glioblastoma
Abstract

Gliosarcoma, a rare glioblastoma variant, is composed of a glial and a mesenchymal component. Though the mesenchymal portion most commonly resembles a fibrosarcoma, other differentiation patterns have been observed. We present the first genomic characterisation (karyotyping followed by FISH and array comparative genomic hybridisation analysis) of a gliosarcoma with osseous metaplasia. In addition to chromosomal changes often found in gliomas (+7,–10,–13, and –22), the tumour cells also harboured a hitherto unknown t(3;21)(q13∼21;q21∼22).

Published
2011

2. Audits Can Improve Neurosurgical Practice – Illustrated by Endoscopic Third Ventriculostomy

Author

Per Kristian Eide, Arild Egge, Christian Tiller, Bernt J. Due-Tønnessen, Kathrine Frey Frøslie, Tryggve Lundar, Torstein R. Meling, and Eirik Helseth

Subjects
Adult, Male, medicine.medical_specialty, Adolescent, Audit, Neurosurgical Procedures, Ventriculostomy, Third ventriculostomy, Postoperative Complications, medicine, Humans, Child, Intensive care medicine, Retrospective Studies, Third Ventricle, Clinical Audit, medicine.diagnostic_test, business.industry, Endoscopic third ventriculostomy, Infant, Retrospective cohort study, General Medicine, medicine.disease, humanities, Hydrocephalus, Endoscopy, body regions, Clinical Practice, Child, Preschool, Neuroendoscopy, Pediatrics, Perinatology and Child Health, Female, Surgery, Neurology (clinical), business
Abstract

Objective: A single-center, retrospective study was performed to evaluate the effect of audit on the patient selection for endoscopic third ventriculostomy (ETV). Materials and Methods: Between 01.01.99 and 07.31.01, 134 patients underwent ETV (group 1). During this period, there was no consensus within the neurosurgical community as to patient selection criteria for ETV. A review of our clinical practice in August 2001 demonstrated significantly lower ETV success rates for patients Results: The overall 1-year ETV success rate in group 2 (65%) was significantly higher than in group 1 (53%) (p < 0.04). Group 2 had a significantly higher proportion of patients >6 months of age (p = 0.013) and with obstructive HC (p = 0.001). Conclusion: Patient selection criteria critically affect the overall ETV success rate. An audit of our results led to a significant change in clinical practice, thereby improving the ETV success rates and patient care.

Published
2007

3. Contents Vol. 43, 2007

Author

Hacı Orhan, Amit Agrawal, Martin R. Weinzierl, Abhineet Chowdhary, A.K. Malik, Bekir Akgun, R. Suman, P.K. Gupta, Laney Jorgenson, Arild Egge, Bernt J. Due-Tønnessen, Ashok Kumar Mahapatra, Stefan Bluml, Metin Kaplan, Manish K. Kasliwal, Timothy M. George, Pamela D. Reiter, S. Iglesias, Akshay Pratap, J. Hinojosa, T. Al Derazi, Ravinder Srivastava, A. Muñoz, Kant Y. Lin, Sean A. McNatt, A. Egge, V. Santosh, P.K. Eide, Bayram Cirak, E. Helseth, Faiz U. Ahmad, Jane E. Freeman, Julia Rankin, Eirik Helseth, Anthony M. Avellino, Anand Kumar, Kathrine Frey Frøslie, V. Bonde, Alexandra Kapser, Richard A. Postlethwait, Lori A. McBride, John A. Jane, Keyne K. Thomas, S. Kaplan, N. Dange, Per Kristian Eide, Huseyin Yakar, Anand S. Lagoo, Patrik Gabikian, Deepak Agrawal, Bhawani Shankar Sharma, Christian Tiller, Hector E. James, Michael R. Carter, James D. Weisfeld-Adams, B.J. Due-Tønnessen, C.S. Agrawal, A. Otero, Tryggve Lundar, B.A. Anandh, Paul Wang, J. Esparza, Isaac O. Karikari, D. Muzumdar, Ken R. Winston, Douglas N. Fish, A.K. Mahapatra, Richard G. Ellenbogen, Fatih Serhat Erol, Marcus J. Likeman, Marvin D. Nelson, Thomas J. Cummings, S. Kerem Ozel, G. Sara Mathew, Vladimir Grigoryants, Raghavan Kumar, Taylor J. Abel, Marcus C. Korinth, Ahmet Kazez, Shail Rupakheti, J. Gordon McComb, Jeffrey G. Ojemann, A. Goel, Michael H. Handler, Anil Garg, Ashish Suri, and Torstein R. Meling

Subjects
Traditional medicine, business.industry, Pediatrics, Perinatology and Child Health, Medicine, Surgery, Neurology (clinical), General Medicine, business
Published
2007

4. The Gravity-Assisted Paedi-Gav Valve in the Treatment of Pediatric Hydrocephalus

Author

Arild Egge, Torstein R. Meling, and Bernt J. Due-Tønnessen

Subjects
Male, Reoperation, medicine.medical_specialty, Adolescent, Treatment outcome, Hydrostatic pressure, Pilot Projects, Hydrostatic Pressure, medicine, Humans, Prospective Studies, Child, Prospective cohort study, business.industry, Follow up studies, Infant, Equipment Design, General Medicine, medicine.disease, Cerebrospinal Fluid Shunts, Surgery, Hydrocephalus, Clinical trial, Equipment failure, Treatment Outcome, Child, Preschool, Pediatrics, Perinatology and Child Health, Equipment Failure, Female, Neurology (clinical), business, Pediatric hydrocephalus, Follow-Up Studies, Gravitation
Abstract

Objective: A single-center, prospective, nonrandomized pilot study was performed to assess the Paedi-Gav gravity-assisted valve for the treatment of pediatric patients with hydrocephalus. Methods: Participants were pediatric patients (age Results: During a follow-up interval of minimum 52 weeks and a median of 24 months after the first implantation on-study, shunt revisions were required in 17 (53.1%) of the 32 patients. The 12-month shunt-survival rate without revision of any component was 53%, with a median shunt-survival time of 388 days. The most common reasons for shunt revision were shunt obstructions (12/17) and overdrainage (3/17). Shunt obstructions were caused by valve-related failures (9/12) and distal obstructions (3/12). Conclusion: Although the small number of patients enrolled in this study warrants cautious conclusions, the overall results are comparable to those reported for primary shunt insertions with conventional valves in pediatric patients with hydrocephalus. Although this study provides a rationale for examining the Paedi-Gav gravity-assisted shunt valve in a larger prospective randomized controlled trial, the shunt failure pattern, with a rather high frequency of valve-related failures, may indicate potential for further improvements in the valve design and/or manufacturing.

Published
2005

5. Subject Index Vol. 43, 2007

Author

Timothy M. George, Pamela D. Reiter, Julia Rankin, B.J. Due-Tønnessen, Torstein R. Meling, Deepak Agrawal, Abhineet Chowdhary, Eirik Helseth, Michael H. Handler, V. Santosh, Thomas J. Cummings, Anil Garg, P.K. Eide, Ravinder Srivastava, Hacı Orhan, G. Sara Mathew, T. Al Derazi, Douglas N. Fish, Jane E. Freeman, Lori A. McBride, Ahmet Kazez, S. Kerem Ozel, Shail Rupakheti, Ashish Suri, Anthony M. Avellino, Sean A. McNatt, Keyne K. Thomas, J. Esparza, Alexandra Kapser, Ashok Kumar Mahapatra, A. Otero, J. Hinojosa, Christian Tiller, Marcus J. Likeman, B.A. Anandh, Anand Kumar, Faiz U. Ahmad, Bayram Cirak, Manish K. Kasliwal, Marcus C. Korinth, E. Helseth, John A. Jane, Per Kristian Eide, Anand S. Lagoo, V. Bonde, Fatih Serhat Erol, Paul Wang, Jeffrey G. Ojemann, Michael R. Carter, Ken R. Winston, Kathrine Frey Frøslie, Richard A. Postlethwait, J. Gordon McComb, Bhawani Shankar Sharma, A. Goel, Isaac O. Karikari, A.K. Malik, D. Muzumdar, Vladimir Grigoryants, Hector E. James, Laney Jorgenson, S. Kaplan, Arild Egge, Raghavan Kumar, N. Dange, James D. Weisfeld-Adams, Taylor J. Abel, C.S. Agrawal, Tryggve Lundar, R. Suman, P.K. Gupta, Bernt J. Due-Tønnessen, A.K. Mahapatra, Richard G. Ellenbogen, Marvin D. Nelson, Stefan Bluml, S. Iglesias, Akshay Pratap, A. Muñoz, Kant Y. Lin, Metin Kaplan, Amit Agrawal, Martin R. Weinzierl, Huseyin Yakar, Bekir Akgun, Patrik Gabikian, and A. Egge

Subjects
Pediatrics, medicine.medical_specialty, Index (economics), business.industry, Pediatrics, Perinatology and Child Health, medicine, Physical therapy, Surgery, Subject (documents), Neurology (clinical), General Medicine, business
Published
2007

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