Publications 2025

Miró Ò, Galicia M, Dargan PI, Wood DM, Dines AM, Heyerdahl F, Hovda KE, Liechti M, Vallersnes OM, Eyer F, Burillo-Putze G, Euro-DEN Plus Research Group (2025)
Age and sex related differences in clinical manifestations and severity of acute cocaine toxicity presentations to European emergency departments
Am J Emerg Med, 96, 151-160 (in press)
DOI 10.1016/j.ajem.2025.06.035, PubMed 40570490

Ouwerkerk JJJ, Wood DM, Dines AM, Yates C, Eyer F, Heyerdahl F, Giraudon I, Hovda KE, Liechti ME, Miró Ò, Vallersnes OM, Dargan PI, Euro-DEN Plus Research Group, Gresnigt FMJ, Euro-DEN Plus research group authors: (2025)
Differences in the clinical presentation of acute 3,4-methylenedioxymetamfetamine intoxication by co-intoxication and patient sex to European emergency departments
Clin Toxicol (Phila), 63 (3), 183-192
DOI 10.1080/15563650.2025.2453052, PubMed 40106272

Solvik-Olsen T, Bekkevold M, Heyerdahl F, Lang AM, Hagemo JS, Rehn M (2025)
Environmental factors and clinical markers of stress during neonatal transport: a systematic literature review 
BMJ Paediatr Open, 9 (1)
DOI 10.1136/bmjpo-2025-003568, PubMed 40506087

Publications 2024

Bekkevold M, Solvik-Olsen T, Heyerdahl F, Lang AM, Hagemo J, Rehn M, NeoTemplate Collaborating Group (2024)
Reporting interhospital neonatal intensive care transport: international five-step Delphi-based template
BMJ Paediatr Open, 8 (1)
DOI 10.1136/bmjpo-2023-002374, PubMed 38569741

Brantsæter AB, Hansen AE, Gustavsen AG, Stensvåg V, Aastrøm HA, Heyerdahl F, Tveitane PM, Nakstad ER (2024)
Transport of Patients With High-Consequence Infectious Diseases: Development of European Capacity in Norway
Health Secur, 22 (S1), S76-S85
DOI 10.1089/hs.2023.0153, PubMed 39137054

Eide D, Gjersing L, Danielsen AW, Skulberg AK, Dale O, Braarud AC, Heyerdahl F, Tylleskar I (2024)
Heightened mortality risk after a non-fatal opioid overdose: Risk factors for mortality in the week following emergency treatment
Addiction, 119 (12), 2131-2138
DOI 10.1111/add.16632, PubMed 39183709

Engelsen PC, Heyerdahl F, Maddali DD, Akhavi MS, Undseth RM, Elle OJ, Brun H (2024)
Correction to: Ascending with ultrasound: telementored eFAST in flight-a feasibility study
Emerg Radiol, 31 (4), 629
DOI 10.1007/s10140-024-02265-7, PubMed 39030394

Skulberg AK, Heyerdahl F, Dale O, Eide D (2024)
[Not Available]
Tidsskr Nor Laegeforen, 144 (8)
DOI 10.4045/tidsskr.24.0202, PubMed 38934313

Solvik-Olsen T, Kåsin JI, Hagemo J, Heyerdahl F (2024)
Manikin study showed that neonates are exposed to high sound and vibration levels during helicopter incubator transports
Acta Paediatr, 113 (11), 2384-2390
DOI 10.1111/apa.17326, PubMed 38884542

Solvik-Olsen T, Kåsin JI, Hagemo J, Heyerdahl F (2024)
Response to the letter: 'Vibrations during helicopter neonatal transport'
Acta Paediatr, 113 (11), 2483-2484
DOI 10.1111/apa.17374, PubMed 39135263

Waters ML, Dargan PI, Yates C, Dines AM, Eyer F, Giraudon I, Heyerdahl F, Hovda KE, Liechti ME, Miró Ò, Vallersnes OM, Anseeuw K, Badaras R, Bitel M, Bonnici J, Brvar M, Caganova B, Calýskan F, Ceschi A, Chamoun K, Daveloose L, Galicia M, Gartner B, Gorozia K, Grenc D et al. (2024)
Clinical effects of cannabis compared to synthetic cannabinoid receptor agonists (SCRAs): a retrospective cohort study of presentations with acute toxicity to European hospitals between 2013 and 2020
Clin Toxicol (Phila), 62 (6), 378-384
DOI 10.1080/15563650.2024.2346125, PubMed 38934347

Publications 2023

Engelsen PC, Heyerdahl F, Maddali DD, Akhavi MS, Undseth RM, Elle OJ, Brun H (2023)
Ascending with ultrasound: telementored eFAST in flight-a feasibility study
Emerg Radiol, 31 (1), 25-31
DOI 10.1007/s10140-023-02186-x, PubMed 38066242

Gustavsen I, Heyerdahl F (2023)
[Sequelae in carbon monoxide poisoning]
Tidsskr Nor Laegeforen, 143 (13)
DOI 10.4045/tidsskr.23.0482, PubMed 37753769

Haakonsen HB, Jortveit J, Heyerdahl F (2023)
A man in his sixties with acute chest pain
Tidsskr Nor Laegeforen, 143 (12)
DOI 10.4045/tidsskr.23.0113, PubMed 37668138

Noseda R, Franchi M, Pagnamenta A, Müller L, Dines AM, Giraudon I, Heyerdahl F, Eyer F, Hovda KE, Liechti ME, Miró Ò, Vallersnes OM, Yates C, Dargan PI, Wood DM, Ceschi A, Euro-DEN Research Group (2023)
Determinants of Admission to Critical Care Following Acute Recreational Drug Toxicity: A Euro-DEN Plus Study
J Clin Med, 12 (18)
DOI 10.3390/jcm12185970, PubMed 37762912

Rehn M, Heyerdahl F, Osbakk SA, Andresen ÅE, Hagemo J (2023)
Challenges and Risks in Out-of-Hospital Transport of Patients During the Coronavirus Disease 2019 Pandemic
Air Med J, 42 (3), 191-195
DOI 10.1016/j.amj.2023.02.002, PubMed 37150573

Rydlöv HS, Fjose LO, Heyerdahl F (2023)
Pain Management with Inhalation of Methoxyflurane Administrated by Non-Medical Ski Patrol: A Quality Assessment Study
Pain Ther, 12 (6), 1455-1463
DOI 10.1007/s40122-023-00547-5, PubMed 37578680

Simensen R, Fjose LO, Rehn M, Hagemo J, Thorsen K, Heyerdahl F (2023)
Comparison of three regimens with inhalational methoxyflurane versus intranasal fentanyl versus intravenous morphine in pre-hospital acute pain management: study protocol for a randomized controlled trial (PreMeFen)
Trials, 24 (1), 571
DOI 10.1186/s13063-023-07590-9, PubMed 37670364

Vallersnes OM, Dines AM, Wood DM, Heyerdahl F, Hovda KE, Yates C, Giraudon I, Caganova B, Ceschi A, Galicia M, Liakoni E, Liechti ME, Miró Ò, Noseda R, Persett PS, Põld K, Schmid Y, Scholz I, Vigorita F, Dargan PI (2023)
Self-discharge during treatment for acute recreational drug toxicity: an observational study from emergency departments in seven European countries
Int J Emerg Med, 16 (1), 86
DOI 10.1186/s12245-023-00566-1, PubMed 38030969

Publications 2022

Crulli B, Dines AM, Blanco G, Giraudon I, Eyer F, Liechti ME, Miró Ò, Hovda KE, Heyerdahl F, Yates C, Vallersnes OM, Wood DM, Dargan PI, Euro-DEN Plus Research Group (2022)
Novel psychoactive substances-related presentations to the emergency departments of the European drug emergencies network plus (Euro-DEN plus) over the six-year period 2014-2019
Clin Toxicol (Phila), 60 (12), 1318-1327
DOI 10.1080/15563650.2022.2137524, PubMed 36322684

Hagemo JS, Skulberg AK, Rehn M, Valberg M, Pesonen M, Heimdal HJ, Heyerdahl F (2022)
Inhaled nitric oxide as temporary respiratory stabilization in patients with COVID-19 related respiratory failure (INOCOV): Study protocol for a randomized controlled trial
PLoS One, 17 (5), e0268822
DOI 10.1371/journal.pone.0268822, PubMed 35622848

Heier EC, Eyer F, Rabe C, Geith S, Dargan PI, Wood DM, Heyerdahl F, Dines AM, Giraudon I, Erik Hovda K, Yates C, Vallersnes OM, Miró Ò, Liechti ME, Zellner T, Euro-DEN Research Group (2022)
Clinical effect of ethanol co-use in patients with acute drug toxicity involving the use of central nervous system depressant recreational drugs
Eur J Emerg Med, 29 (4), 291-300
DOI 10.1097/MEJ.0000000000000932, PubMed 35404314

Heyerdahl F (2022)
New search-and-rescue helicopter and useful activity data
Tidsskr Nor Laegeforen, 142 (18)
DOI 10.4045/tidsskr.22.0732, PubMed 36511737

Ingebrigtsen E, Persett PS, Brekke M, Heyerdahl F, Hovda KE, Vallersnes OM (2022)
Poisoning with central stimulant drugs: an observational study from Oslo, Norway
Int J Emerg Med, 15 (1), 54
DOI 10.1186/s12245-022-00457-x, PubMed 36175843

Lao YE, Heyerdahl F, Jacobsen D, Hovda KE (2022)
An enzymatic assay with formate oxidase for point-of-care diagnosis of methanol poisoning
Basic Clin Pharmacol Toxicol, 131 (6), 547-554
DOI 10.1111/bcpt.13789, PubMed 36083569

Miró Ò, Burillo-Putze G, Schmid Y, Salgado E, Liechti ME, Dines AM, Giraudon I, Heyerdahl F, Hovda KE, Vallersne OM, Eyer F, Wood DM, Yates C, Dargan PI, Galicia M, Euro-DEN Plus Research Group (2022)
Severity of emergency department presentations due to acute drug toxicity in Europe: a longitudinal analysis over a 6-year period (2014-2019) stratified by sex
Eur J Emerg Med, 30 (1), 21-31
DOI 10.1097/MEJ.0000000000000978, PubMed 36350710

Schmid Y, Galicia M, Vogt SB, Liechti ME, Burillo-Putze G, Dargan PI, Dines AM, Giraudon I, Heyerdahl F, Hovda KE, Wood DM, Yates C, Miró Ò, (on behalf of the Euro-DEN Plus Research Group) (2022)
Differences in clinical features associated with cannabis intoxication in presentations to European emergency departments according to patient age and sex
Clin Toxicol (Phila), 60 (8), 912-919
DOI 10.1080/15563650.2022.2060116, PubMed 35404194

Skulberg AK, Tylleskär I, Valberg M, Braarud AC, Dale J, Heyerdahl F, Skålhegg T, Barstein J, Mellesmo S, Dale O (2022)
Comparison of intranasal and intramuscular naloxone in opioid overdoses managed by ambulance staff: a double-dummy, randomised, controlled trial
Addiction, 117 (6), 1658-1667
DOI 10.1111/add.15806, PubMed 35137493

Publications 2021

Bailey C, Makison-Booth C, Farrant J, Beswick A, Chewins J, Eimstad M, Heyerdahl F, Crook B (2021)
Validation of the Decontamination of a Specialist Transport System for Patients with High Consequence Infectious Diseases
Microorganisms, 9 (12)
DOI 10.3390/microorganisms9122575, PubMed 34946176

Eiding H, Kongsgaard UE, Olasveengen TM, Heyerdahl F (2021)
Interhospital transport of critically ill patients: A prospective observational study of patient and transport characteristics
Acta Anaesthesiol Scand, 66 (2), 248-255
DOI 10.1111/aas.14005, PubMed 34811736

Leaper C, Dines AM, Dargan PI, Yates C, Hovda KE, Heyerdahl F, Giraudon I, Wood DM, Euro-DEN Plus Research group (2021)
Impact of pregabalin co-use in patients presenting with acute heroin toxicity to the European Drug Emergencies Network Plus project
Eur J Emerg Med, 28 (2), 144-146
DOI 10.1097/MEJ.0000000000000738, PubMed 33674514

Miró Ò, Waring WS, Dargan PI, Wood DM, Dines AM, Yates C, Giraudon I, Moughty A, O'Connor N, Heyerdahl F, Hovda KE, Vallersnes OM, Paasma R, Pold K, Jürgens G, Megarbane B, Anand JS, Liakoni E, Liechti M, Eyer F, Zacharov S, Caganova B, Bonnici J, Radenkova-Saeva J, Galicia M et al. (2021)
Variation of drugs involved in acute drug toxicity presentations based on age and sex: an epidemiological approach based on European emergency departments
Clin Toxicol (Phila), 59 (10), 896-904
DOI 10.1080/15563650.2021.1884693, PubMed 33724118

Waldman W, Kabata PM, Dines AM, Wood DM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Euro-DEN Research Group, Dargan PI, Sein Anand J (2021)
Rhabdomyolysis related to acute recreational drug toxicity-A Euro-DEN study
PLoS One, 16 (3), e0246297
DOI 10.1371/journal.pone.0246297, PubMed 33705425

Publications 2020

Layne KA, Dargan PI, Dines AM, Leaper C, Yates C, Hovda KE, Heyerdahl F, Archer JRH, Giraudon I, Wood DM, Euro-DEN Plus Research Group (2020)
Acute toxicity related to misuse (nonmedical use) of tramadol: Experience of the European Drug Emergencies Network Plus
Br J Clin Pharmacol, 87 (4), 1668-1675
DOI 10.1111/bcp.14408, PubMed 32503085

Miro O, Dargan PI, Galicia M, Anand JS, Bonnici J, Caganova B, Dines AM, Eyer F, Giraudon I, Heyerdahl F, Jurgens G, Kabata PM, Liakoni E, Liechti ME, Megarbane B, Moughty A, O'Connor N, Paasma R, Persett PS, Pold K, Radenkova-Saeva J, Scholz I, Vallersnes OM, Waring WS, Wood DM et al. (2020)
Authors' reply to comment on "Epidemiology, clinical features and management of patients presenting to European emergency departments with acute cocaine toxicity: comparison between powder cocaine and crack cocaine cases"
Clin. Toxicol., 58 (1), 72-74
DOI 10.1080/15563650.2019.1613549

Noseda R, Schmid Y, Scholz I, Liakoni E, Liechti ME, Dargan PI, Wood DM, Dines AM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Ceschi A, Euro-DEN Research Group (2020)
MDMA-related presentations to the emergency departments of the European Drug Emergencies Network plus (Euro-DEN Plus) over the four-year period 2014-2017
Clin Toxicol (Phila), 59 (2), 131-137
DOI 10.1080/15563650.2020.1784914, PubMed 32677861

Skulberg AK, Tylleskär I, Braarud AC, Dale J, Heyerdahl F, Mellesmo S, Valberg M, Dale O (2020)
NTNU intranasal naloxone trial (NINA-1) study protocol for a double-blind, double-dummy, non-inferiority randomised controlled trial comparing intranasal 1.4 mg to intramuscular 0.8 mg naloxone for prehospital use
BMJ Open, 10 (11), e041556
DOI 10.1136/bmjopen-2020-041556, PubMed 33184084

Tollisen KH, Hadley CL, Bjerva M, Dahl GT, Högvall LM, Sandvik L, Andersen GØ, Heyerdahl F, Jacobsen D (2020)
Clinical impact of chronic substance abuse in a Norwegian ICU-population
Acta Anaesthesiol Scand, 65 (4), 515-524
DOI 10.1111/aas.13766, PubMed 33340102

Tylleskar I, Gjersing L, Bjørnsen LP, Braarud AC, Heyerdahl F, Dale O, Skulberg AK (2020)
Prehospital naloxone administration - what influences choice of dose and route of administration?
BMC Emerg Med, 20 (1), 71
DOI 10.1186/s12873-020-00366-3, PubMed 32891142

Publications 2019

Galicia M, Dargan PI, Dines AM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Euro-DEN Plus Research Group, Wood DM, Miró Ò, Euro-DEN Plus Research Group (2019)
Clinical relevance of ethanol coingestion in patients with GHB/GBL intoxication
Toxicol Lett, 314, 37-42
DOI 10.1016/j.toxlet.2019.07.001, PubMed 31301370

Miró Ò, Dargan PI, Wood DM, Dines AM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Euro-DEN Plus Research Group, Galicia M (2019)
Epidemiology, clinical features and management of patients presenting to European emergency departments with acute cocaine toxicity: comparison between powder cocaine and crack cocaine cases
Clin Toxicol (Phila), 57 (8), 718-726
DOI 10.1080/15563650.2018.1549735, PubMed 30696283

Syse VL, Brekke M, Grimsrud MM, Persett PS, Heyerdahl F, Hovda KE, Vallersnes OM (2019)
Gender differences in acute recreational drug toxicity: a case series from Oslo, Norway
BMC Emerg Med, 19 (1), 29
DOI 10.1186/s12873-019-0244-3, PubMed 31035940

Tollisen KH, Bjerva M, Hadley CL, Dahl GT, Högvall LM, Sandvik L, Heyerdahl F, Jacobsen D (2019)
Substance abuse-related admissions in a mixed Norwegian intensive care population
Acta Anaesthesiol Scand, 64 (3), 329-337
DOI 10.1111/aas.13506, PubMed 31721148

Wolfe CE, Wood DM, Dines A, Whatley BP, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Dargan PI, Euro-DEN Research Group (2019)
Seizures as a complication of recreational drug use: Analysis of the Euro-DEN Plus data-set
Neurotoxicology, 73, 183-187
DOI 10.1016/j.neuro.2019.04.003, PubMed 30974132

Publications 2018

Liakoni E, Yates C, Dines AM, Dargan PI, Heyerdahl F, Hovda KE, Wood DM, Eyer F, Liechti ME, Euro-DEN Plus Research Group (2018)
Acute recreational drug toxicity: Comparison of self-reports and results of immunoassay and additional analytical methods in a multicenter European case series
Medicine (Baltimore), 97 (5), e9784
DOI 10.1097/MD.0000000000009784, PubMed 29384873

Lyphout C, Yates C, Margolin ZR, Dargan PI, Dines AM, Heyerdahl F, Hovda KE, Giraudon I, Bucher-Bartelson B, Green JL, Euro-DEN Research Group, Wood DM (2018)
Presentations to the emergency department with non-medical use of benzodiazepines and Z-drugs: profiling and relation to sales data
Eur J Clin Pharmacol, 75 (1), 77-85
DOI 10.1007/s00228-018-2550-1, PubMed 30244371

Madah-Amiri D, Skulberg AK, Braarud AC, Dale O, Heyerdahl F, Lobmaier P, Clausen T (2018)
Ambulance-attended opioid overdoses: An examination into overdose locations and the role of a safe injection facility
Subst Abus, 40 (3), 383-388
DOI 10.1080/08897077.2018.1485130, PubMed 29949448

Miró Ò, Yates C, Dines AM, Wood DM, Dargan PI, Galán I, Jerez A, Puiguriguer J, Waring WS, Moughty A, O'Connor N, Heyerdahl F, Hovda KE, Vallersnes OM, Paasma R, Põld K, Jürgens G, Megarbane B, Anand JS, Liakoni E, Liechti M, Eyer F, Zacharov S, Caganova B, Giraudon I et al. (2018)
Emergencies related to recreational drug abuse in Spain compared to emergencies attended in 3 European areas
Emergencias, 30 (6), 385-394
PubMed 30638341

Yamamoto T, Dargan PI, Dines A, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Sedefov R, Wood DM, Euro-DEN Research Group (2018)
Concurrent Use of Benzodiazepine by Heroin Users-What Are the Prevalence and the Risks Associated with This Pattern of Use?
J Med Toxicol, 15 (1), 4-11
DOI 10.1007/s13181-018-0674-4, PubMed 30066312

Publications 2017

Miró Ò, Galicia M, Dargan P, Dines AM, Giraudon I, Heyerdahl F, Hovda KE, Yates C, Wood DM, Liakoni E, Liechti M, Jürgens G, Pedersen CB, O'Connor N, Markey G, Moughty A, Lee C, O'Donohoe P, Sein Anand J, Puiguriguer J, Homar C, Eyer F, Vallersnes OM, Persett PS, Chevillard L et al. (2017)
Intoxication by gamma hydroxybutyrate and related analogues: Clinical characteristics and comparison between pure intoxication and that combined with other substances of abuse
Toxicol Lett, 277, 84-91
DOI 10.1016/j.toxlet.2017.05.030, PubMed 28579487

Nakstad ER, Opdahl H, Heyerdahl F, Borchsenius F, Skjønsberg OH (2017)
Manual ventilation and open suction procedures contribute to negative pressures in a mechanical lung model
BMJ Open Respir Res, 4 (1), e000176
DOI 10.1136/bmjresp-2016-000176, PubMed 28725445

Nakstad ER, Aass HCD, Opdahl H, Witsø A, Borchsenius F, Heyerdahl F, Skjønsberg OH (2017)
Bronchial wheezing predicts inflammation and respiratory failure in fire smoke victims
Acta Anaesthesiol Scand, 61 (9), 1142-1154
DOI 10.1111/aas.12962, PubMed 28832892

Vallersnes OM, Persett PS, Øiestad EL, Karinen R, Heyerdahl F, Hovda KE (2017)
Underestimated impact of novel psychoactive substances: laboratory confirmation of recreational drug toxicity in Oslo, Norway
Clin Toxicol (Phila), 55 (7), 636-644
DOI 10.1080/15563650.2017.1312002, PubMed 28406320

Publications 2016

Gjelsvik B, Heyerdahl F, Holmes J, Lunn D, Hawton K (2016)
Is There a Relationship between Suicidal Intent and Lethality in Deliberate Self-Poisoning?
Suicide Life Threat Behav, 47 (2), 205-216
DOI 10.1111/sltb.12277, PubMed 27416812

Gjelsvik B, Heyerdahl F, Holmes J, Lunn D, Hawton K (2016)
Looking Back on Self-Poisoning: The Relationship between Depressed Mood and Reporting of Suicidal Intent in People Who Deliberately Self-Poison
Suicide Life Threat Behav, 47 (2), 228-241
DOI 10.1111/sltb.12278, PubMed 27416894

Heyerdahl F (2016)
New psychoactive substances A russian agent revolution?
Tidsskr. Nor. Laegeforen., 136 (9), 846

Nakstad ER, Opdahl H, Heyerdahl F, Borchsenius F, Skjønsberg OH (2016)
Can ventilator settings reduce the negative effects of endotracheal suctioning? Investigations in a mechanical lung model
BMC Anesthesiol, 16 (1), 30
DOI 10.1186/s12871-016-0196-z, PubMed 27350249

Vallersnes OM, Dines AM, Wood DM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Euro-DEN Research Group, Dargan PI (2016)
Psychosis associated with acute recreational drug toxicity: a European case series
BMC Psychiatry, 16, 293
DOI 10.1186/s12888-016-1002-7, PubMed 27538886

Vallersnes OM, Dines AM, Wood DM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Euro-DEN Research Group, Dargan PI (2016)
Erratum to: Psychosis associated with acute recreational drug toxicity: a European case series
BMC Psychiatry, 16 (1), 405
DOI 10.1186/s12888-016-1066-4, PubMed 27852244

Wood DM, Dines AM, Heyerdahl F, Yates C, Giraudon I, Paasma R, Hovda KE, Dargan PI (2016)
Review of European- Drug Emergencies Network ( Euro- DEN) training package for non- specialist workers to assess acute recreational drug and new psychoactive substance toxicity in night- time economy environments
Drug-Educ. Prev. Policy, 23 (1), 73-77
DOI 10.3109/09687637.2015.1081379

Publications 2015

Dines AM, Wood DM, Galicia M, Yates CM, Heyerdahl F, Hovda KE, Giraudon I, Sedefov R, Euro-DEN Research Group, Dargan PI (2015)
Presentations to the Emergency Department Following Cannabis use--a Multi-Centre Case Series from Ten European Countries
J Med Toxicol, 11 (4), 415-21
DOI 10.1007/s13181-014-0460-x, PubMed 25652342

Dines AM, Wood DM, Yates C, Heyerdahl F, Hovda KE, Giraudon I, Sedefov R, Dargan PI, Euro-DEN Research Group (2015)
Acute recreational drug and new psychoactive substance toxicity in Europe: 12 months data collection from the European Drug Emergencies Network (Euro-DEN)
Clin Toxicol (Phila), 53 (9), 893-900
DOI 10.3109/15563650.2015.1088157, PubMed 26503789

Publications 2014

Gjelsvik B, Heyerdahl F, Lunn D, Hawton K (2014)
Change in access to prescribed medication following an episode of deliberate self-poisoning: a multilevel approach
PLoS One, 9 (5), e98086
DOI 10.1371/journal.pone.0098086, PubMed 24854351

Heyerdahl F, Hovda KE, Giraudon I, Yates C, Dines AM, Sedefov R, Wood DM, Dargan PI (2014)
Current European data collection on emergency department presentations with acute recreational drug toxicity: gaps and national variations
Clin Toxicol (Phila), 52 (10), 1005-12
DOI 10.3109/15563650.2014.976792, PubMed 25361166

Wood DM, Heyerdahl F, Yates CB, Dines AM, Giraudon I, Hovda KE, Dargan PI (2014)
The European Drug Emergencies Network (Euro-DEN)
Clin Toxicol (Phila), 52 (4), 239-41
DOI 10.3109/15563650.2014.898771, PubMed 24654801

Publications 2013

Gjelsvik B, Heyerdahl F, Hawton K (2013)
Deliberate self-poisoning with prescribed drugs is not related to medical severity of acts
J Clin Psychiatry, 74 (6), 630
DOI 10.4088/JCP.12l08298, PubMed 23842015

Publications 2012

Gjelsvik B, Heyerdahl F, Hawton K (2012)
Prescribed medication availability and deliberate self-poisoning: a longitudinal study
J Clin Psychiatry, 73 (4), e548-54
DOI 10.4088/JCP.11m07209, PubMed 22579161

Heyerdahl F, Lervåg SO, Skagestad M, Jacobsen D (2012)
[What is an intensive Department of Internal Medicine?]
Tidsskr Nor Laegeforen, 132 (6), 632-3
DOI 10.4045/tidsskr.12.0006, PubMed 22456140

Publications 2011

Kolvik HM, Heyerdahl F, Bjørnaas MA, Hovda KE, Jacobsen D, Ekeberg Ø (2011)
[Living conditions and pattern of acute poisonings in Oslo]
Tidsskr Nor Laegeforen, 131 (15), 1424-8
DOI 10.4045/tidsskr.10.0531, PubMed 21844943

Lenz H, Raeder J, Draegni T, Heyerdahl F, Schmelz M, Stubhaug A (2011)
Effects of COX inhibition on experimental pain and hyperalgesia during and after remifentanil infusion in humans
Pain, 152 (6), 1289-1297
DOI 10.1016/j.pain.2011.02.007, PubMed 21396775

Publications 2010

Bjornaas MA, Hovda KE, Heyerdahl F, Skog K, Drottning P, Opdahl A, Jacobsen D, Ekeberg O (2010)
Suicidal intention, psychosocial factors and referral to further treatment: a one-year cross-sectional study of self-poisoning
BMC Psychiatry, 10, 58
DOI 10.1186/1471-244X-10-58, PubMed 20653986

Bjornaas MA, Teige B, Hovda KE, Ekeberg O, Heyerdahl F, Jacobsen D (2010)
Fatal poisonings in Oslo: a one-year observational study
BMC Emerg Med, 10, 13
DOI 10.1186/1471-227X-10-13, PubMed 20525396

Muan B, Heyerdahl F, Lindås R, Prestmo A, Skjønsberg H, Berg KJ (2010)
[Coding practice in fatal poisonings]
Tidsskr Nor Laegeforen, 130 (16), 1601-5
DOI 10.4045/tidsskr.09.0571, PubMed 20805856

Publications 2009

Heyerdahl F (2009)
Acute poisonings in Oslo: levels of health care, clinical course and repetition pattern
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 724, 1 b. (flere pag.)
BIBSYS 090084055, ISBN 978-82-8072-916-3

Heyerdahl F, Bjornaas MA, Dahl R, Hovda KE, Nore AK, Ekeberg O, Jacobsen D (2009)
Repetition of acute poisoning in Oslo: 1-year prospective study
Br J Psychiatry, 194 (1), 73-9
DOI 10.1192/bjp.bp.107.048322, PubMed 19118331

Aas P, Myhrer T, Heyerdahl F (2009)
Legemidler i supplerende medisinsk behandling ved nervegassforgiftning: aktuelle legemidler i beskyttelse av hjernen
FFI, Kjeller, 39 s.
BIBSYS 100109101, ISBN 978-82-464-1682-3

Publications 2008

Heyerdahl F, Bjornas MA, Hovda KE, Skog K, Opdahl A, Wium C, Ekeberg O, Jacobsen D (2008)
Acute poisonings treated in hospitals in Oslo: a one-year prospective study (II): clinical outcome
Clin Toxicol (Phila), 46 (1), 42-9
DOI 10.1080/15563650701210048, PubMed 18167036

Heyerdahl F, Hovda KE, Bjornaas MA, Brørs O, Ekeberg O, Jacobsen D (2008)
Clinical assessment compared to laboratory screening in acutely poisoned patients
Hum Exp Toxicol, 27 (1), 73-9
DOI 10.1177/0960327107087800, PubMed 18480152

Heyerdahl F, Hovda KE, Bjornaas MA, Nore AK, Figueiredo JC, Ekeberg O, Jacobsen D (2008)
Pre-hospital treatment of acute poisonings in Oslo
BMC Emerg Med, 8, 15
DOI 10.1186/1471-227X-8-15, PubMed 19025643

Publications 2007

Rajka T, Heyerdahl F, Hovda KE, Stiksrud B, Jacobsen D (2007)
Acute child poisonings in Oslo: a 2-year prospective study
Acta Paediatr, 96 (9), 1355-9
DOI 10.1111/j.1651-2227.2007.00420.x, PubMed 17718791

Publications 1999

Heyerdahl F, Kildahl-Andersen O (1999)
[Myelomatosis and low level of vitamin B12]
Tidsskr Nor Laegeforen, 119 (29), 4321-2
PubMed 10667130