Publications 2021

Frič R, Langvatn EA, Due-Tønnessen BJ, Eide PK (2021)
The role of pulsatile and static intracranial pressure measurements in the management of children with craniosynostosis-an institutional experience from 49 patients
Acta Neurochir (Wien)
DOI 10.1007/s00701-020-04680-4, PubMed 33389123

Lundar T, Due-Tønnessen BJ, Frič R, Sundseth J, Brandal P, Due-Tønnessen P (2021)
Outcome After Treatment of Spinal Ependymoma in Children and Adolescents: Long-Term Follow-up of a Single Consecutive Institutional Series of 33 Patients Treated Over Eight Decades
World Neurosurg (in press)
DOI 10.1016/j.wneu.2021.02.131, PubMed 33684583

Publications 2020

Frič R (2020)
Upright magnetic resonance imaging in diagnostics of Chiari malformation type 1 - cui bono?
Acta Neurochir (Wien), 162 (7), 1549-1550
DOI 10.1007/s00701-020-04297-7, PubMed 32215741

Frič R, Due-Tønnessen BJ, Lundar T, Egge A, Kronen Krossnes B, Due-Tønnessen P, Stensvold E, Brandal P (2020)
Long-term outcome of posterior fossa medulloblastoma in patients surviving more than 20 years following primary treatment in childhood
Sci Rep, 10 (1), 9371
DOI 10.1038/s41598-020-66328-8, PubMed 32523021

Lundar T, Due-Tønnessen BJ, Frič R, Brandal P, Due-Tønnessen P (2020)
Adult outcome after treatment of pediatric posterior fossa ependymoma: long-term follow-up of a single consecutive institutional series of 22 patients with more than 5 years of survival
J Neurosurg Pediatr, 26 (1), 22-26
DOI 10.3171/2020.1.PEDS19700, PubMed 32217795

Lundar T, Due-Tønnessen BJ, Frič R, Brandal P, Stensvold E, Due-Tønnessen P (2020)
Outcomes in adulthood after neurosurgical treatment of brain tumors in the first 3 years of life: long-term follow-up of a single consecutive institutional series of 97 patients
Childs Nerv Syst, 37 (2), 427-433
DOI 10.1007/s00381-020-04859-1, PubMed 32814984

Publications 2019

Frič R, Eide PK (2019)
Chiari type 1-a malformation or a syndrome? A critical review
Acta Neurochir (Wien), 162 (7), 1513-1525
DOI 10.1007/s00701-019-04100-2, PubMed 31656982

Fric R, Ringstad G, Eide PK (2019)
Chiari malformation type 1- diagnostics and treatment
Tidsskr. Nor. Laegeforen., 139 (10), 931-935

Fric R, Ringstad G, Eide PK (2019)
Chiari malformation type 1 – diagnosis and treatment
Tidsskr Nor Laegeforen, 139 (10)
DOI 10.4045/tidsskr.18.0455, PubMed 31238671

Langvatn EA, Frič R, Due-Tønnessen BJ, Eide PK (2019)
Intracranial volume versus static and pulsatile intracranial pressure values in children with craniosynostosis
J Neurosurg Pediatr, 24 (1), 66-74
DOI 10.3171/2019.2.PEDS18767, PubMed 31003225

Lundar T, Due-Tønnessen BJ, Frič R, Brandal P, Stensvold E, Due-Tønnessen P (2019)
Adult outcome after neurosurgical treatment of brain tumours in the first year of life: long-term follow-up of a single consecutive institutional series of 34 patients
Acta Neurochir (Wien), 161 (9), 1793-1798
DOI 10.1007/s00701-019-04014-z, PubMed 31309304

Lundar T, Due-Tønnessen BJ, Frič R, Krossnes B, Brandal P, Stensvold E, Due-Tønnessen P (2019)
Neurosurgical treatment of pediatric pleomorphic xanthoastrocytomas: long-term follow-up of a single-institution, consecutive series of 12 patients
J Neurosurg Pediatr, 23 (4), 512-516
DOI 10.3171/2018.11.PEDS18449, PubMed 30738389

Publications 2018

Diets IJ, Prescott T, Champaigne NL, Mancini GMS, Krossnes B, Frič R, Kocsis K, Jongmans MCJ, Kleefstra T (2018)
A recurrent de novo missense pathogenic variant in SMARCB1 causes severe intellectual disability and choroid plexus hyperplasia with resultant hydrocephalus
Genet Med, 21 (3), 572-579
DOI 10.1038/s41436-018-0079-4, PubMed 29907796

Fric R (2018)
Betydningen av hjernetrykk ved Chiari-malformasjon
Tidsskr Nor Laegeforen, 138 (8)
DOI 10.4045/tidsskr.18.0135, PubMed 29737780

Lundar T, Due-Tønnessen BJ, Fric R, Due-Tønnessen P (2018)
Postoperative radiotherapy for pediatric brain tumor: a lesson learned from treatment of a 5-year-old girl for posterior fossa astrocytoma (WHO1) in 1967
Acta Neurochir (Wien), 160 (10), 2065-2066
DOI 10.1007/s00701-018-3636-3, PubMed 30046877

Lundar T, Due-Tønnessen BJ, Fric R, Egge A, Krossnes B, Due-Tønnessen P, Stensvold E, Brandal P (2018)
Neurosurgical treatment of gangliogliomas in children and adolescents: long-term follow-up of a single-institution series of 32 patients
Acta Neurochir (Wien), 160 (6), 1207-1214
DOI 10.1007/s00701-018-3550-8, PubMed 29680921

Publications 2017

Frič R, Pripp AH, Eide PK (2017)
Cardiovascular risk factors in Chiari malformation and idiopathic intracranial hypertension
Brain Behav, 7 (5), e00677
DOI 10.1002/brb3.677, PubMed 28523220

Gadde JA, Shah V, Liebo GB, Ringstad GA, Pomeraniec IJ, Bakke SJ, Fric R, Ksendzovsky A, Jane JA, Schwartz ES, Haughton V (2017)
Anatomical features of the cervical spinal canal in Chiari I deformity with presyrinx: A case-control study
Neuroradiol J, 30 (5), 405-409
DOI 10.1177/1971400917718842, PubMed 28691569

Ramm-Pettersen J, Frič R, Berg-Johnsen J (2017)
Long-term follow-up after endoscopic trans-sphenoidal surgery or initial observation in clivus chordomas
Acta Neurochir (Wien), 159 (10), 1849-1855
DOI 10.1007/s00701-017-3236-7, PubMed 28623412

Stensvold E, Krossnes BK, Lundar T, Due-Tønnessen BJ, Frič R, Due-Tønnessen P, Bechensteen AG, Myklebust TÅ, Johannesen TB, Brandal P (2017)
Outcome for children treated for medulloblastoma and supratentorial primitive neuroectodermal tumor (CNS-PNET) - a retrospective analysis spanning 40 years of treatment
Acta Oncol, 56 (5), 698-705
DOI 10.1080/0284186X.2017.1301679, PubMed 28325133

Publications 2016

Frič R, Eide PK (2016)
Comparative observational study on the clinical presentation, intracranial volume measurements, and intracranial pressure scores in patients with either Chiari malformation Type I or idiopathic intracranial hypertension
J Neurosurg, 126 (4), 1312-1322
DOI 10.3171/2016.4.JNS152862, PubMed 27341045

Frič R, Hald JK, Antal EA (2016)
Benign Sphenoid Wing Meningioma Presenting with an Acute Intracerebral Hemorrhage - A Case Report
J Cent Nerv Syst Dis, 8, 1-4
DOI 10.4137/JCNSD.S33653, PubMed 27127413

Frič R, Lindstrøm EK, Ringstad GA, Mardal KA, Eide PK (2016)
The association between the pulse pressure gradient at the cranio-cervical junction derived from phase-contrast magnetic resonance imaging and invasively measured pulsatile intracranial pressure in symptomatic patients with Chiari malformation type 1
Acta Neurochir (Wien), 158 (12), 2295-2304
DOI 10.1007/s00701-016-2979-x, PubMed 27743249

Publications 2015

Frič R, Eide PK (2015)
Perioperative monitoring of pulsatile and static intracranial pressure in patients with Chiari malformation type 1 undergoing foramen magnum decompression
Acta Neurochir (Wien), 158 (2), 341-7; discussion 346-7
DOI 10.1007/s00701-015-2669-0, PubMed 26711284

Frič R, Eide PK (2015)
Comparison of pulsatile and static pressures within the intracranial and lumbar compartments in patients with Chiari malformation type 1: a prospective observational study
Acta Neurochir (Wien), 157 (8), 1411-23; discussion 1423
DOI 10.1007/s00701-015-2465-x, PubMed 26105759

Publications 2013

Jusufovic M, Due-Tønnessen P, Fric R, Stenset V (2013)
Subdural empyema
Tidsskr Nor Laegeforen, 133 (15), 1601
DOI 10.4045/tidsskr.13.0164, PubMed 23970275

Publications 2011

Dahlback HS, Brandal P, Krossnes BK, Fric R, Meling TR, Meza-Zepeda LA, Danielsen HE, Heim S (2011)
Multiple chromosomal monosomies are characteristic of giant cell ependymoma
Hum Pathol, 42 (12), 2042-6
DOI 10.1016/j.humpath.2011.02.012, PubMed 21683982

Publications 2010

Frič R, Eide PK (2010)
The presigmoid approach for removal of tumours causing ventral compression of the brainstem. Surgical results and postoperative quality of life
Br J Neurosurg, 25 (1), 86-93
DOI 10.3109/02688697.2010.525266, PubMed 20979440