
Morten Ingvar Lossius
- Prof.dr.med., Senior researcher
Publications 2025
What contributes to recovery in the long term? Young people's experiences with psychogenic non-epileptic seizures (PNES)
164, 110281
DOI 10.1016/j.yebeh.2025.110281, PubMed 39914174
Turning up the current - optimizing stimulation parameters with vagus nerve stimulation in a nationwide Norwegian cohort (The NOR-current study)
18 (4), 1212-1219
DOI 10.1016/j.brs.2025.06.016, PubMed 40588127
Syndromic and etiological classification predicts seizure freedom in childhood and youth onset epilepsy: A population-based study from the Norwegian Mother, Father, and Child Cohort Study
(in press)
DOI 10.1111/epi.18672, PubMed 41066145
Incidence of childhood and youth epilepsy: A population-based prospective cohort study utilizing current International League Against Epilepsy classifications for seizures, syndromes, and etiologies
66 (3), 776-789
DOI 10.1111/epi.18238, PubMed 39797741
Negative impact of self-reported executive problems in patients with functional/dissociative seizures: Results from a prospective long-term observational study
125, 44-49
DOI 10.1016/j.seizure.2025.01.010, PubMed 39798508
Publications 2024
Localizing value of disturbances of self-integration, depersonalization, and forced thinking: A systematic review
27 (2), 156-170
DOI 10.1002/epd2.20317, PubMed 39656179
Young people diagnosed with psychogenic nonepileptic seizures (PNES) years ago - How are they now?
157, 109874
DOI 10.1016/j.yebeh.2024.109874, PubMed 38851124
Norwegian population-based study of effectiveness of vagus nerve stimulation in patients with developmental and epileptic encephalopathies
9 (2), 704-716
DOI 10.1002/epi4.12908, PubMed 38318727
Post-stroke epilepsy
144 (9)
DOI 10.4045/tidsskr.24.0103, PubMed 39167001
Clinical utility of ultra long-term subcutaneous electroencephalographic monitoring in drug-resistant epilepsies: a "real world" pilot study
65 (11), 3265-3278
DOI 10.1111/epi.18121, PubMed 39340394
A call for better information about epilepsy: The next of kin perspective
125, 10-15
DOI 10.1016/j.seizure.2024.12.012, PubMed 39729751
Screening for depression in patients with epilepsy: What are the benefits for physicians and patients in the real-life setting
65 (10), 3076-3082
DOI 10.1111/epi.18089, PubMed 39140982
Publications 2023
Screening of attention and executive functions in pediatric patients at a tertiary epilepsy center
46, 35-41
DOI 10.1016/j.ejpn.2023.06.006, PubMed 37418997
Reduced total number of enlarged perivascular spaces in post-traumatic epilepsy patients with unilateral lesions - a feasibility study
113, 1-5
DOI 10.1016/j.seizure.2023.10.006, PubMed 37847935
Role of the glymphatic system and perivascular spaces as a potential biomarker for post-stroke epilepsy
9 (1), 60-76
DOI 10.1002/epi4.12877, PubMed 38041607
Health-related quality of life in adults with drug-resistant focal epilepsy treated with modified Atkins diet in a randomized clinical trial
64 (5), e69-e74
DOI 10.1111/epi.17585, PubMed 36923995
Variation in seizure risk increases from antiseizure medication withdrawal among patients with well-controlled epilepsy: A pooled analysis
9 (1), 333-344
DOI 10.1002/epi4.12880, PubMed 38071463
Publications 2022
Use of screening tools to assess comorbidities and adverse events in patients with epilepsy. A European Reference Network for Rare and Complex Epilepsies (EpiCARE) survey
101, 237-243
DOI 10.1016/j.seizure.2022.09.008, PubMed 36115293
Efficacy, tolerability and pharmacokinetic variability of brivaracetam in adults with difficult-to-treat epilepsy
183, 106946
DOI 10.1016/j.eplepsyres.2022.106946, PubMed 35609355
Reappraisal of the Medical Research Council Antiepileptic Drug Withdrawal Study: Contamination-adjusted and dose-response re-analysis
63 (7), 1724-1735
DOI 10.1111/epi.17273, PubMed 35490396
The effect of attachment style on long-term outcomes in psychogenic nonepileptic seizures: Results from a prospective study
135, 108890
DOI 10.1016/j.yebeh.2022.108890, PubMed 36037581
Publications 2021
Cognitive change after DBS in refractory epilepsy: A randomized-controlled trial
145 (1), 111-118
DOI 10.1111/ane.13539, PubMed 34658033
People with epilepsy still feel stigmatized
144 (3), 312-316
DOI 10.1111/ane.13449, PubMed 33961282
All patients with epilepsy, whether at high or low risk of SUDEP, should have access to individually tailored SUDEP information
127, 108418
DOI 10.1016/j.yebeh.2021.108418, PubMed 34785152
Norwegian population-based study of long-term effects, safety, and predictors of response of vagus nerve stimulation treatment in drug-resistant epilepsy: The NORPulse study
63 (2), 414-425
DOI 10.1111/epi.17152, PubMed 34935136
Effect and tolerability of perampanel in patients with drug-resistant epilepsy
119, 107965
DOI 10.1016/j.yebeh.2021.107965, PubMed 33940525
Feasibility of transcutaneous auricular vagus nerve stimulation in treatment of drug resistant epilepsy: A multicenter prospective study
177, 106776
DOI 10.1016/j.eplepsyres.2021.106776, PubMed 34597958
Response: The true prevalence of psychogenic nonepileptic seizures is much higher than this
62 (11), 2877
DOI 10.1111/epi.17054, PubMed 34490896
Incidence and prevalence of psychogenic nonepileptic seizures in a Norwegian county: A 10-year population-based study
62 (7), 1528-1535
DOI 10.1111/epi.16949, PubMed 34075579
Publications 2020
How often do doctors discuss drug withdrawal with their seizure-free patients with epilepsy?
108, 107095
DOI 10.1016/j.yebeh.2020.107095, PubMed 32320921
EEG in fitness to drive evaluations in people with epilepsy - Considerable variations across Europe
79, 56-60
DOI 10.1016/j.seizure.2020.04.013, PubMed 32416569
A European questionnaire survey on epilepsy monitoring units' current practice for postoperative psychogenic nonepileptic seizures' detection
112, 107355
DOI 10.1016/j.yebeh.2020.107355, PubMed 32745960
[Drug-resistant epilepsy – not always correct]
140 (7)
DOI 10.4045/tidsskr.20.0149, PubMed 32378861
Drug resistant epilepsy - not always right
Tidsskr. Nor. Laegeforen., 140 (7), 646-647
Clinical experience combined with therapeutic drug monitoring of lacosamide
141 (4), 279-286
DOI 10.1111/ane.13206, PubMed 31853958
[Assisted reproductive treatment in women with epilepsy]
140 (1)
DOI 10.4045/tidsskr.19.0253, PubMed 31948216
[Correction: Assisted reproductive technology among women with epilepsy]
140 (3)
DOI 10.4045/tidsskr.20.0063, PubMed 32105046
Publications 2019
[Continued importance of valproate for women with generalised epilepsy]
139 (7)
DOI 10.4045/tidsskr.19.0220, PubMed 30969058
A call for better information about epilepsy: The patients' perspective-An online survey
69, 173-179
DOI 10.1016/j.seizure.2019.04.015, PubMed 31054491
Nonadherence to treatment regimens in epilepsy from the patient's perspective and predisposing factors: Differences between intentional and unintentional lack of adherence
60 (5), e58-e62
DOI 10.1111/epi.14734, PubMed 30980675
Sexual function in people with epilepsy: Similarities and differences with the general population
60 (9), 1984-1992
DOI 10.1111/epi.16311, PubMed 31407332
Challenges in epilepsy-The perspective of Norwegian epilepsy patients
140 (1), 40-47
DOI 10.1111/ane.13098, PubMed 30963535
Refractory epilepsy and nonadherence to drug treatment
4 (4), 618-623
DOI 10.1002/epi4.12367, PubMed 31819918
Publications 2018
European trends in epilepsy surgery
91 (2), e96-e106
DOI 10.1212/WNL.0000000000005776, PubMed 29898967
Increased rate of acute caesarean sections in women with epilepsy: results from the Oppland Perinatal Database in Norway
26 (4), 617-623
DOI 10.1111/ene.13865, PubMed 30414297
People with epilepsy and their relatives want more information about risks of injuries and premature death
82, 6-10
DOI 10.1016/j.yebeh.2018.02.023, PubMed 29574300
Tested and reported executive problems in children and youth epilepsy
8 (5), e00971
DOI 10.1002/brb3.971, PubMed 29761020
Pharmacokinetic variability of valproate during pregnancy - Implications for the use of therapeutic drug monitoring
141, 31-37
DOI 10.1016/j.eplepsyres.2018.02.004, PubMed 29453075
Short-term Seizure Outcomes in Childhood Epilepsy
141 (6)
DOI 10.1542/peds.2017-4016, PubMed 29789444
Publications 2017
Pharmacokinetic variability of valproate in women of childbearing age
58 (10), e142-e146
DOI 10.1111/epi.13872, PubMed 28833045
Young people with epilepsy have an increased risk of eating disorder and poor quality diet
3 (1), 40-45
DOI 10.1002/epi4.12089, PubMed 29588986
Discontinuation of antiepileptic drugs in seizure-free patients - when and how?
137 (6), 451-454
DOI 10.4045/tidsskr.16.0957, PubMed 28332798
Current standards of neuropsychological assessment in epilepsy surgery centers across Europe
58 (3), 343-355
DOI 10.1111/epi.13646, PubMed 28067423
Incidence and Prevalence of Childhood Epilepsy: A Nationwide Cohort Study
139 (5)
DOI 10.1542/peds.2016-3908, PubMed 28557750
Seizures, syndromes, and etiologies in childhood epilepsy: The International League Against Epilepsy 1981, 1989, and 2017 classifications used in a population-based cohort
58 (11), 1880-1891
DOI 10.1111/epi.13913, PubMed 28949013
Publications 2016
Psychiatric comorbidity in children and youth with epilepsy: An association with executive dysfunction?
56, 88-94
DOI 10.1016/j.yebeh.2016.01.007, PubMed 26851646
[Sudden unexpected death in epilepsy (SUDEP)]
136 (2), 131-5
DOI 10.4045/tidsskr.14.0640, PubMed 26813818
Age-specific birth rates in women with epilepsy: a population-based study
6 (8), e00492
DOI 10.1002/brb3.492, PubMed 27547497
Sleep problems in children and adolescents with epilepsy: Associations with psychiatric comorbidity
62, 14-9
DOI 10.1016/j.yebeh.2016.06.015, PubMed 27448238
Sexual problems in people with refractory epilepsy
61, 174-179
DOI 10.1016/j.yebeh.2016.05.038, PubMed 27371882
Sexual problems in people with refractory epilepsy
64 (Pt A), 293
DOI 10.1016/j.yebeh.2016.08.015, PubMed 27727079
Current practices in long-term video-EEG monitoring services: A survey among partners of the E-PILEPSY pilot network of reference for refractory epilepsy and epilepsy surgery
38, 38-45
DOI 10.1016/j.seizure.2016.03.009, PubMed 27104922
Early sexual debut in Norwegian youth with epilepsy: A population-based study
56, 1-4
DOI 10.1016/j.yebeh.2015.12.014, PubMed 26789985
[Psychogenic non-epileptic seizures in children]
136 (23-24), 1993-1995
DOI 10.4045/tidsskr.16.0312, PubMed 28004548
Current use of imaging and electromagnetic source localization procedures in epilepsy surgery centers across Europe
57 (5), 770-6
DOI 10.1111/epi.13347, PubMed 27012361
[Long-term adverse effects of anti-epileptic drugs]
136 (4), 324-7
DOI 10.4045/tidsskr.15.0220, PubMed 26905847
Comorbidity and Childhood Epilepsy: A Nationwide Registry Study
138 (3)
DOI 10.1542/peds.2016-0921, PubMed 27482059
Publications 2015
Intrauterine growth retardation in foetuses of women with epilepsy
28, 76-80
DOI 10.1016/j.seizure.2015.02.026, PubMed 25797889
Epilepsy and eating disorders during pregnancy: Prevalence, complications and birth outcome
Seizure, 28, 81-84
DOI 10.1016/j.seizure.2015.02.014
Favorable change of lipid profile after carbamazepine withdrawal
134 (3), 219-23
DOI 10.1111/ane.12534, PubMed 26592200
[First generalized tonic-clonic seizure]
135 (14), 1256-8
DOI 10.4045/tidsskr.14.0654, PubMed 26269067
[Re: First generalized tonic-clonic seizure]
135 (22), 2025-6
DOI 10.4045/tidsskr.15.1194, PubMed 26627281
Publications 2013
[Epilepsy in the elderly]
133 (5), 528-31
DOI 10.4045/tidsskr.12.0781, PubMed 23463065
Publications 2012
Repeated neuropsychological assessment in well-controlled epilepsy
127 (1), 53-60
DOI 10.1111/j.1600-0404.2012.01682.x, PubMed 22607393
[Dravet syndrome as a cause of epilepsy and learning disability]
132 (1), 44-7
DOI 10.4045/tidsskr.11.0539, PubMed 22240828
Publications 2011
Psychiatric symptoms in Norwegian children with epilepsy aged 8-13 years: effects of age and gender?
52 (7), 1231-8
DOI 10.1111/j.1528-1167.2011.03042.x, PubMed 21446963
Gender differences in risk-taking behaviour in youth with epilepsy: a Norwegian population-based study
(191), 12-7
DOI 10.1111/j.1600-0404.2011.01537.x, PubMed 21711251
Acute postoperative seizures after epilepsy surgery - a long-term outcome predictor?
123 (1), 48-53
DOI 10.1111/j.1600-0404.2010.01343.x, PubMed 20199515
Dravet syndrome--considerable delay in making the diagnosis
125 (5), 359-62
DOI 10.1111/j.1600-0404.2011.01609.x, PubMed 22050316
Buccal midazolam or rectal diazepam for treatment of residential adult patients with serial seizures or status epilepticus
124 (2), 99-103
DOI 10.1111/j.1600-0404.2010.01474.x, PubMed 21208198
Publications 2010
Improvement in verbal memory after withdrawal of carbamazepine and valproate in patients with well-controlled epilepsy: a randomized, double-blind study
123 (6), 385-9
DOI 10.1111/j.1600-0404.2010.01452.x, PubMed 20955400
[Injuries following seizures]
130 (11), 1155
DOI 10.4045/tidsskr.10.0402, PubMed 20531504
Publications 2009
[Polyunsaturated fatty acids and epilepsy]
129 (1), 26-8
DOI 10.4045/tidsskr.2009.34487, PubMed 19119293
Health concerns predicts poor quality of life in well-controlled epilepsy
18 (7), 487-91
DOI 10.1016/j.seizure.2009.04.008, PubMed 19428272
Reversible effects of antiepileptic drugs on thyroid hormones in men and women with epilepsy: a prospective randomized double-blind withdrawal study
16 (1), 64-8
DOI 10.1016/j.yebeh.2009.07.014, PubMed 19646931
[Psychogenic non-epileptic seizures]
129 (22), 2348-51
DOI 10.4045/tidsskr.09.0300, PubMed 19935934
Publications 2008
Behavioural adjustment in seizure-free epilepsy patients on monotherapy
17 (5), 422-30
DOI 10.1016/j.seizure.2007.12.002, PubMed 18243738
Antiepileptic monotherapy significantly impairs normative scores on common tests of executive functions
119 (3), 194-8
DOI 10.1111/j.1600-0404.2008.01109.x, PubMed 18976320
Consequences of withdrawal of antiepileptic drugs on seizure-relapse, cognition, quality of life, heart rate variability, sex hormones, and aspects of behaviour: a prospective, randomized, double-blind, withdrawal studyof antiepileptic drugs
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 577, 1 b. (flere pag.)
BIBSYS 080239595, ISBN 978-82-8072-722-0
Publications 2007
Slight improvement in mood and irritability after antiepileptic drug withdrawal: a controlled study in patients on monotherapy
10 (3), 449-55
DOI 10.1016/j.yebeh.2007.01.014, PubMed 17350342
Influence of major antiepileptic drugs on neuropsychological function: results from a randomized, double-blind, placebo-controlled withdrawal study of seizure-free epilepsy patients on monotherapy
13 (3), 393-400
DOI 10.1017/S1355617707070555, PubMed 17445287
Influence of major antiepileptic drugs on neuropsychological function: Results from a randomized, double-blind, placebo-controlled withdrawal study of seizure-free epilepsy patients on monotherapy
J. Int. Neuropsychol. Soc., 13 (3), 393-400
DOI 10.1017/S13556177070555
Changes in autonomic cardiac control in patients with epilepsy after discontinuation of antiepileptic drugs: a randomized controlled withdrawal study
14 (9), 1022-8
DOI 10.1111/j.1468-1331.2007.01863.x, PubMed 17718695
Consequences of antiepileptic drug withdrawal: a randomized, double-blind study (Akershus Study)
49 (3), 455-63
DOI 10.1111/j.1528-1167.2007.01323.x, PubMed 17888074
Reversible effects of antiepileptic drugs on reproductive endocrine function in men and women with epilepsy--a prospective randomized double-blind withdrawal study
48 (10), 1875-82
DOI 10.1111/j.1528-1167.2007.01147.x, PubMed 17555526
Age-specific prevalence of epilepsy in Oppland County, Norway
116 (5), 307-11
DOI 10.1111/j.1600-0404.2007.00909.x, PubMed 17922724
Publications 2006
Predictors of neuropsychological impairment in seizure-free epilepsy patients
47 (11), 1870-8
DOI 10.1111/j.1528-1167.2006.00830.x, PubMed 17116027
Influence of major antiepileptic drugs on attention, reaction time, and speed of information processing: results from a randomized, double-blind, placebo-controlled withdrawal study of seizure-free epilepsy patients receiving monotherapy
47 (12), 2038-45
DOI 10.1111/j.1528-1167.2006.00805.x, PubMed 17201701
Psychiatric symptoms in adolescents with epilepsy in junior high school in Norway: a population survey
9 (2), 286-92
DOI 10.1016/j.yebeh.2006.06.018, PubMed 16891157
Poststroke epilepsy: occurrence, predictors and treatment
6 (12), 1801-9
DOI 10.1586/14737175.6.12.1801, PubMed 17181427
Publications 2005
Poststroke epilepsy: occurrence and predictors--a long-term prospective controlled study (Akershus Stroke Study)
46 (8), 1246-51
DOI 10.1111/j.1528-1167.2005.57904.x, PubMed 16060935
Publications 2003
Reliability and validity of the Canadian Neurological Scale in retrospective assessment of initial stroke severity
16 (3), 286-91
DOI 10.1159/000071129, PubMed 12865618
Publications 2002
Incidence and predictors for post-stroke epilepsy. A prospective controlled trial. The Akershus stroke study
9 (4), 365-8
DOI 10.1046/j.1468-1331.2002.00415.x, PubMed 12099919
Publications 2001
Properties of the 15D and EQ-5D utility measures in a community sample of people with epilepsy
44 (2-3), 179-89
DOI 10.1016/s0920-1211(01)00201-7, PubMed 11325573
Publications 2000
Reliability and validity of a Norwegian version of the quality of life in epilepsy inventory (QOLIE-89)
41 (1), 91-7
DOI 10.1111/j.1528-1157.2000.tb01511.x, PubMed 10643930
The health-related quality of life of patients with epilepsy compared with angina pectoris, rheumatoid arthritis, asthma and chronic obstructive pulmonary disease
9 (7), 865-71
DOI 10.1023/a:1008993821253, PubMed 11297029
Publications 1999
Predictors for recurrence of epileptic seizures in a general epilepsy population
8 (8), 476-9
DOI 10.1053/seiz.1999.0355, PubMed 10627410
Publications 1998
Norsk forening for barne- og ungdomspsykiatriske institusjoner 40 år 1958-1998: festskrift i anledning foreningens 40-årsjubileum
Foreningen, Oslo, 83 s.,
BIBSYS 981443494, ISBN 82-91446-05-9