Publications 2024

Galteland P, Døving M, Næss I, Sehic A, Utheim TP, Eken T, Skaga NO, Helseth E, Ramm-Pettersen J (2024)
The association between head injury and facial fracture treatment: an observational study of hospitalized bicyclists from a level 1 trauma centre
Acta Neurochir (Wien), 166 (1), 132
DOI 10.1007/s00701-024-06019-9, PubMed 38472419

Galteland P, Døving M, Sehic A, Paaske Utheim T, Næss I, Eken T, Skaga NO, Helseth E, Ramm-Pettersen J (2024)
Do Bicycle Helmets Protect Against Facial Fractures? An Observational Study From a Level 1 Trauma Centre
J Craniofac Surg, 35 (5), 1325-1328
DOI 10.1097/SCS.0000000000010181, PubMed 39042066

Lioi F, Ramm-Pettersen J, Fratini A, Riva C, Colella N, Missori P (2024)
Ultrasonographic Assessment of Optic Nerve Sheath Diameter as a Screening Tool for Intracranial Hypertension in Traumatic Brain Injury
World Neurosurg, 192, e42-e48
DOI 10.1016/j.wneu.2024.08.111, PubMed 39209251

Næss I, Døving M, Galteland P, Skaga NO, Eken T, Helseth E, Ramm-Pettersen J (2024)
Bicycle helmets are associated with fewer and less severe head injuries and fewer neurosurgical procedures
Acta Neurochir (Wien), 166 (1), 398
DOI 10.1007/s00701-024-06294-6, PubMed 39379615

Publications 2023

Frič R, König M, Due-Tønnessen BJ, Ramm-Pettersen J, Berg-Johnsen J (2023)
Long-term outcome of patients treated for craniopharyngioma: a single center experience
Br J Neurosurg, 1-9 (in press)
DOI 10.1080/02688697.2023.2179600, PubMed 36799140

Publications 2022

Døving M, Naess I, Galteland P, Ramm-Pettersen J, Dalby M, Utheim TP, Skaga NO, Helseth E, Sehic A (2022)
Anatomical distribution of mandibular fractures from severe bicycling accidents: A 12-year experience from a Norwegian level 1 trauma center
Dent Traumatol, 38 (5), 424-430
DOI 10.1111/edt.12756, PubMed 35481880

Eng SF, Næss I, Linnerud H, Rønning P, Brommeland T, Evjensvold M, Sundstrøm T, Galteland P, Døving M, Aarhus M, Helseth E, Ramm-Pettersen J (2022)
Bicycle-related cervical spine injuries
N Am Spine Soc J, 10, 100119
DOI 10.1016/j.xnsj.2022.100119, PubMed 35585915

Galteland P, Næss I, Døving M, Sehic A, Utheim TP, Skaga NO, Eken T, Helseth E, Ramm-Pettersen J (2022)
Facial Fractures and Their Relation to Head and Cervical Spine Injuries in Hospitalized Bicyclists
J Craniofac Surg, 34 (1), 34-39
DOI 10.1097/SCS.0000000000009032, PubMed 36608095

Herrman H, Osnes K, Egge A, Konglund A, Ramm-Pettersen J, Dietrichs E, Taubøll E (2022)
ANT-DBS in epilepsy shows no effect on selected neuropsychiatric tests
Acta Neurol Scand, 146 (3), 258-264
DOI 10.1111/ane.13658, PubMed 35649713

Stray AV, Siverts H, Melhuus K, Enger M, Galteland P, Næss I, Helseth E, Ramm-Pettersen J (2022)
Characteristics of Electric Scooter and Bicycle Injuries After Introduction of Electric Scooter Rentals in Oslo, Norway
JAMA Netw Open, 5 (8), e2226701
DOI 10.1001/jamanetworkopen.2022.26701, PubMed 35969397

Publications 2021

Munkvold BKR, Solheim O, Bartek J, Corell A, de Dios E, Gulati S, Helseth E, Holmgren K, Jensdottir M, Lundborg M, Mireles EEM, Mahesparan R, Tveiten ØV, Milos P, Redebrandt HN, Pedersen LK, Ramm-Pettersen J, Sjöberg RL, Sjögren B, Sjåvik K, Smits A, Tomasevic G, Vecchio TG, Vik-Mo EO, Zetterling M et al. (2021)
Variations in the management of diffuse low-grade gliomas-A Scandinavian multicenter study
Neurooncol Pract, 8 (6), 706-717
DOI 10.1093/nop/npab054, PubMed 34777840

Publications 2020

Døving M, Galteland P, Eken T, Sehic A, Utheim TP, Skaga NO, Helseth E, Ramm-Pettersen J (2020)
Dentoalveolar injuries, bicycling accidents and helmet use in patients referred to a Norwegian Trauma Centre: A 12-year prospective study
Dent Traumatol, 37 (2), 240-246
DOI 10.1111/edt.12627, PubMed 33220164

Nome T, Herrman H, Lehtimäki K, Egge A, Konglund A, Ramm-Pettersen J, Taubøll E, Dietrichs E (2020)
Direct visual targeting versus preset coordinates for ANT-DBS in epilepsy
Acta Neurol Scand, 142 (1), 23-29
DOI 10.1111/ane.13233, PubMed 32078161

Næss I, Galteland P, Skaga NO, Eken T, Helseth E, Ramm-Pettersen J (2020)
The number of patients hospitalized with bicycle injuries is increasing - A cry for better road safety
Accid Anal Prev, 148, 105836
DOI 10.1016/j.aap.2020.105836, PubMed 33171415

Publications 2018

Herrman H, Egge A, Konglund AE, Ramm-Pettersen J, Dietrichs E, Taubøll E (2018)
Anterior thalamic deep brain stimulation in refractory epilepsy: A randomized, double-blinded study
Acta Neurol Scand, 139 (3), 294-304
DOI 10.1111/ane.13047, PubMed 30427061

Lundborg M, Helseth E, Josefsen R, Braathen M, Skogen K, Ramm-Pettersen J (2018)
Hyperbaric oxygen therapy of air embolus in the cerebral venous sinuses after intracranial surgery: a case report
Acta Neurochir (Wien), 160 (7), 1401-1405
DOI 10.1007/s00701-018-3537-5, PubMed 29696503

Publications 2017

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

Publications 2015

Ramm-Pettersen J, Halvorsen H, Evang JA, Rønning P, Hol PK, Bollerslev J, Berg-Johnsen J, Helseth E (2015)
Low immediate postoperative serum-cortisol nadir predicts the short-term, but not long-term, remission after pituitary surgery for Cushing's disease
BMC Endocr Disord, 15, 62
DOI 10.1186/s12902-015-0055-9, PubMed 26499317

Publications 2014

Volkmann J, Mueller J, Deuschl G, Kühn AA, Krauss JK, Poewe W, Timmermann L, Falk D, Kupsch A, Kivi A, Schneider GH, Schnitzler A, Südmeyer M, Voges J, Wolters A, Wittstock M, Müller JU, Hering S, Eisner W, Vesper J, Prokop T, Pinsker M, Schrader C, Kloss M, Kiening K et al. (2014)
Pallidal neurostimulation in patients with medication-refractory cervical dystonia: a randomised, sham-controlled trial
Lancet Neurol, 13 (9), 875-84
DOI 10.1016/S1474-4422(14)70143-7, PubMed 25127231

Publications 2013

Casar-Borota O, Heck A, Schulz S, Nesland JM, Ramm-Pettersen J, Lekva T, Alafuzoff I, Bollerslev J (2013)
Expression of SSTR2a, but not of SSTRs 1, 3, or 5 in somatotroph adenomas assessed by monoclonal antibodies was reduced by octreotide and correlated with the acute and long-term effects of octreotide
J Clin Endocrinol Metab, 98 (11), E1730-9
DOI 10.1210/jc.2013-2145, PubMed 24092823

Evang JA, Bollerslev J, Casar-Borota O, Lekva T, Ramm-Pettersen J, Berg JP (2013)
Different levels of various glucocorticoid-regulated genes in corticotroph adenomas
Endocrine, 44 (1), 220-7
DOI 10.1007/s12020-012-9871-0, PubMed 23315031

Halvorsen H, Ramm-Pettersen J, Josefsen R, Rønning P, Reinlie S, Meling T, Berg-Johnsen J, Bollerslev J, Helseth E (2013)
Surgical complications after transsphenoidal microscopic and endoscopic surgery for pituitary adenoma: a consecutive series of 506 procedures
Acta Neurochir (Wien), 156 (3), 441-9
DOI 10.1007/s00701-013-1959-7, PubMed 24343227

Publications 2012

Heck A, Ringstad G, Fougner SL, Casar-Borota O, Nome T, Ramm-Pettersen J, Bollerslev J (2012)
Intensity of pituitary adenoma on T2-weighted magnetic resonance imaging predicts the response to octreotide treatment in newly diagnosed acromegaly
Clin Endocrinol (Oxf), 77 (1), 72-8
DOI 10.1111/j.1365-2265.2011.04286.x, PubMed 22066905

Stanisic M, Aasen AO, Pripp AH, Lindegaard KF, Ramm-Pettersen J, Lyngstadaas SP, Ivanovic J, Konglund A, Ilstad E, Sandell T, Ellingsen O, Sæhle T (2012)
Local and systemic pro-inflammatory and anti-inflammatory cytokine patterns in patients with chronic subdural hematoma: a prospective study
Inflamm Res, 61 (8), 845-52
DOI 10.1007/s00011-012-0476-0, PubMed 22527446

Aaberg KM, Eriksson AS, Ramm-Pettersen J, Nakken KO (2012)
Long-term outcome of resective epilepsy surgery in Norwegian children
Acta Paediatr, 101 (12), e557-60
DOI 10.1111/j.1651-2227.2012.02834.x, PubMed 22924953

Publications 2011

Evang JA, Berg JP, Casar-Borota O, Lekva T, Kringen MK, Ramm-Pettersen J, Bollerslev J (2011)
Reduced levels of E-cadherin correlate with progression of corticotroph pituitary tumours
Clin Endocrinol (Oxf), 75 (6), 811-8
DOI 10.1111/j.1365-2265.2011.04109.x, PubMed 21595730

Ramm-Pettersen J, Berg-Johnsen J, Hol PK, Roy S, Bollerslev J, Schreiner T, Helseth E (2011)
Intra-operative MRI facilitates tumour resection during trans-sphenoidal surgery for pituitary adenomas
Acta Neurochir (Wien), 153 (7), 1367-73
DOI 10.1007/s00701-011-1004-7, PubMed 21523361

Skogseid IM, Ramm-Pettersen J, Volkmann J, Kerty E, Dietrichs E, Røste GK (2011)
Good long-term efficacy of pallidal stimulation in cervical dystonia: a prospective, observer-blinded study
Eur J Neurol, 19 (4), 610-5
DOI 10.1111/j.1468-1331.2011.03591.x, PubMed 22117556

Toft M, Lilleeng B, Ramm-Pettersen J, Skogseid IM, Gundersen V, Gerdts R, Pedersen L, Skjelland M, Røste GK, Dietrichs E (2011)
Long-term efficacy and mortality in Parkinson's disease patients treated with subthalamic stimulation
Mov Disord, 26 (10), 1931-4
DOI 10.1002/mds.23817, PubMed 21656853

Publications 2010

Evang JA, Borota OC, Melum E, Holm R, Ramm-Pettersen J, Bollerslev J, Berg JP (2010)
HDAC2 expression and variable number of repeats in exon 1 of the HDAC2 gene in corticotroph adenomas
Clin Endocrinol (Oxf), 73 (2), 229-35
DOI 10.1111/j.1365-2265.2010.03805.x, PubMed 20346000

Vik-Mo EO, Sandberg C, Olstorn H, Varghese M, Brandal P, Ramm-Pettersen J, Murrell W, Langmoen IA (2010)
Brain tumor stem cells maintain overall phenotype and tumorigenicity after in vitro culturing in serum-free conditions
Neuro Oncol, 12 (12), 1220-30
DOI 10.1093/neuonc/noq102, PubMed 20843775

Publications 2009

Borota OC, Scheithauer BW, Fougner SL, Hald JK, Ramm-Pettersen J, Bollerslev J (2009)
Spindle cell oncocytoma of the adenohypophysis: report of a case with marked cellular atypia and recurrence despite adjuvant treatment
Clin Neuropathol, 28 (2), 91-5
DOI 10.5414/npp28091, PubMed 19353839

Publications 2008

Fougner SL, Bollerslev J, Latif F, Hald JK, Lund T, Ramm-Pettersen J, Berg JP (2008)
Low levels of raf kinase inhibitory protein in growth hormone-secreting pituitary adenomas correlate with poor response to octreotide treatment
J Clin Endocrinol Metab, 93 (4), 1211-6
DOI 10.1210/jc.2007-2272, PubMed 18230656

Toft M, Lilleeng B, Ramm-Pettersen J, Røste GK, Pedersen L, Skogseid IM, Dietrichs E (2008)
[Treatment of movement disorders with deep brain stimulation]
Tidsskr Nor Laegeforen, 128 (17), 1972-6
PubMed 18787575

Publications 2007

Fougner SL, Borota OC, Berg JP, Hald JK, Ramm-Pettersen J, Bollerslev J (2007)
The clinical response to somatostatin analogues in acromegaly correlates to the somatostatin receptor subtype 2a protein expression of the adenoma
Clin Endocrinol (Oxf), 68 (3), 458-65
DOI 10.1111/j.1365-2265.2007.03065.x, PubMed 17941904

Publications 2006

Evang JA, Carlsen SM, Svartberg J, Aanderud S, Johannesen Ø, Schreiner T, Ramm-Pettersen J, Bakke SJ, Lund-Johansen M, Bollerslev J (2006)
[Endogenous Cushing's syndrome]
Tidsskr Nor Laegeforen, 126 (5), 599-602
PubMed 16505869

Publications 2005

Moe MC, Varghese M, Danilov AI, Westerlund U, Ramm-Pettersen J, Brundin L, Svensson M, Berg-Johnsen J, Langmoen IA (2005)
Multipotent progenitor cells from the adult human brain: neurophysiological differentiation to mature neurons
Brain, 128 (Pt 9), 2189-99
DOI 10.1093/brain/awh574, PubMed 15958504

Publications 2004

Stabell KE, Bakke SJ, Andresen S, Bjørnaes H, Borchgrevink HM, Due-Tønnessen P, Heminghyt E, Nome T, Pedersen HK, Ramm-Pettersen J, Røste GK, Tennøe B (2004)
Selective posterior cerebral artery amobarbital test: its role in presurgical memory assessment in temporal lobe epilepsy
Epilepsia, 45 (7), 817-25
DOI 10.1111/j.0013-9580.2004.59903.x, PubMed 15230707