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M. Hellfritzsch · SciRah

Researcher profile · Semantic Scholar

M. Hellfritzsch

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M. Hellfritzsch — researcher profile on SciRah

h-index: 21
Works: 60
Citations: 1,181

Most-cited papers

Association of Antithrombotic Drug Use With Subdural Hematoma Risk
D. Gaist, L. A. García Rodríguez, M. Hellfritzsch, F. Poulsen +3 more
2017Journal of the American Medical Association (JAMA)193 citations Open access
Semantic Scholar
Interaction between warfarin and cannabis
P. Damkier, Dorte Lassen, M. M. Christensen, K. G. Madsen +2 more
2018Basic & Clinical Pharmacology & Toxicology99 citations Open access
Semantic Scholar
Antidepressant use in Denmark, Germany, Spain, and Sweden between 2009 and 2014: Incidence and comorbidities of antidepressant initiators.
J. Forns, A. Pottegård, Tammo Reinders, B. Poblador-Plou +15 more
2019Journal of Affective Disorders64 citations Open access
Semantic Scholar
Use of Non‐Vitamin K Antagonist Oral Anticoagulants 2008–2016: A Danish Nationwide Cohort Study
S. Haastrup, M. Hellfritzsch, L. Rasmussen, A. Pottegård +1 more
2018Basic & Clinical Pharmacology & Toxicology47 citations Open access
Semantic Scholar
Clinical events preceding switching and discontinuation of oral anticoagulant treatment in patients with atrial fibrillation
M. Hellfritzsch, E. Grove, S. Husted, L. Rasmussen +4 more
2016Europace47 citations Open access
Semantic Scholar
Venous thromboembolism and major bleeding in patients with COVID-19: A nationwide population-based cohort study.
M. Dalager-Pedersen, L. Lund, T. Mariager, R. Winther +13 more
2021Clinical Infectious Diseases43 citations Open access
Semantic Scholar
Treatment Changes among Users of Non‐Vitamin K Antagonist Oral Anticoagulants in Atrial Fibrillation
M. Hellfritzsch, S. Husted, E. Grove, L. Rasmussen +4 more
2017Basic & Clinical Pharmacology & Toxicology42 citations Open access
Semantic Scholar
Trends in Incidence of Intracerebral Hemorrhage and Association With Antithrombotic Drug Use in Denmark, 2005-2018
S. Hald, Sören Möller, L. A. García Rodríguez, R. Salman +6 more
2021JAMA Network Open37 citations Open access
Semantic Scholar
Heparin-induced thrombocytopenia: pathophysiology, diagnosis and treatment
A. Hvas, E. Favaloro, M. Hellfritzsch
2021Expert Review of Hematology35 citations
Semantic Scholar
Validation of algorithms in studies based on routinely collected health data: general principles.
V. Ehrenstein, M. Hellfritzsch, J. Kahlert, S. Langan +5 more
2024American Journal of Epidemiology34 citations Open access
Semantic Scholar
Persistence and adherence to non-vitamin K antagonist oral anticoagulant treatment in patients with atrial fibrillation across five Western European countries
J. Komen, A. Pottegård, A. Mantel-Teeuwisse, T. Forslund +14 more
2021Europace33 citations Open access
Semantic Scholar
Odense Pharmacoepidemiological Database: A Review of Use and Content.
J. Hallas, M. Hellfritzsch, M. Rix, M. Olesen +2 more
2017Basic & Clinical Pharmacology & Toxicology32 citations
Semantic Scholar
Trends in Off‐Label Prescribing of Sedatives, Hypnotics and Antidepressants among Children and Adolescents – A Danish, Nationwide Register‐Based Study
Eva Skovslund Nielsen, L. Rasmussen, M. Hellfritzsch, Per Hove Thomsen +2 more
2017Basic & Clinical Pharmacology & Toxicology31 citations
Semantic Scholar
Risk of Acute Liver Injury in Agomelatine and Other Antidepressant Users in Four European Countries: A Cohort and Nested Case–Control Study Using Automated Health Data Sources
M. Pladevall-Vila, A. Pottegård, T. Schink, J. Reutfors +20 more
2019CNS Drugs30 citations Open access
Semantic Scholar
Non-vitamin K antagonist oral anticoagulants, proton pump inhibitors and gastrointestinal bleeds
J. Komen, A. Pottegård, P. Hjemdahl, A. Mantel-Teeuwisse +7 more
2021Heart27 citations Open access
Semantic Scholar
Lifestyle, socioeconomic characteristics, and medical history of elderly persons who receive seasonal influenza vaccination in a tax-supported healthcare system.
M. Hellfritzsch, R. Thomsen, L. Baggesen, F. B. Larsen +2 more
2017Vaccine27 citations
Semantic Scholar
Statin-associated rhabdomyolysis triggered by drug–drug interaction with itraconazole
A. Dybro, P. Damkier, T. Rasmussen, M. Hellfritzsch
2016BMJ Case Reports27 citations Open access
Semantic Scholar
Change in International Normalized Ratio Among Patients Treated With Dicloxacillin and Vitamin K Antagonists.
A. Pottegård, D. Henriksen, K. G. Madsen, M. Hellfritzsch +2 more
2015Journal of the American Medical Association (JAMA)26 citations
Semantic Scholar
Comparison of international guideline recommendations for the diagnosis of pulmonary embolism.
C. Falster, M. Hellfritzsch, T. Gaist, Mikkel Brabrand +4 more
2023The Lancet Haematology25 citations Open access
Semantic Scholar
Validity of ICD‐9 and ICD‐10 codes used to identify acute liver injury: A study in three European data sources
J. Forns, M. Cainzos-Achirica, M. Hellfritzsch, R. Morros +11 more
2019Pharmacoepidemiology and Drug Safety25 citations Open access
Semantic Scholar
Use of direct oral anticoagulants in the first year after market entry of edoxaban: A Danish nationwide drug utilization study
A. Pottegård, E. Grove, M. Hellfritzsch
2018Pharmacoepidemiology and Drug Safety22 citations Open access
Semantic Scholar
Generic switching of warfarin and risk of excessive anticoagulation: a Danish nationwide cohort study
M. Hellfritzsch, J. Rathe, T. Stage, S. Thirstrup +3 more
2016Pharmacoepidemiology and Drug Safety21 citations
Semantic Scholar
Effectiveness and safety of direct oral anticoagulants in atrial fibrillation patients switched from vitamin K antagonists: A systematic review and meta‐analysis
M. Hellfritzsch, K. Adelborg, P. Damkier, Søren Paaske Johnsen +3 more
2019Basic & Clinical Pharmacology & Toxicology20 citations Open access
Semantic Scholar
Using the Symmetry Analysis Design to Screen for Adverse Effects of Non-vitamin K Antagonist Oral Anticoagulants
M. Hellfritzsch, L. Rasmussen, J. Hallas, A. Pottegård
2018Drug Safety19 citations
Semantic Scholar
Topical Antimycotics for Oral Candidiasis in Warfarin Users
M. Hellfritzsch, A. Pottegård, A. J. T. Pedersen, Alaa Burghle +4 more
2017Basic & Clinical Pharmacology & Toxicology19 citations
Semantic Scholar
Off-label prescribing of psychotropic drugs in a Danish child and adolescent psychiatric outpatient clinic
Eva Skovslund Nielsen, M. Hellfritzsch, M. J. Sørensen, Helle Rasmussen +2 more
2015European Child and Adolescent Psychiatry18 citations
Semantic Scholar
Real-world experience with reversal of dabigatran by idarucizumab.
S. Haastrup, M. Hellfritzsch, M. Nybo, A. Hvas +1 more
2020Thrombosis Research17 citations Open access
Semantic Scholar
Ischemic Stroke and Systemic Embolism in Warfarin Users With Atrial Fibrillation or Heart Valve Replacement Exposed to Dicloxacillin or Flucloxacillin
M. Hellfritzsch, Lars Christian Lund, Z. Ennis, T. Stage +10 more
2020Clinical pharmacology and therapy13 citations Open access
Semantic Scholar
Switching, Adverse Effects and Use of Over‐the‐Counter Analgesics among Users of Oral Anticoagulants: A Pharmacy‐based Survey
M. Hellfritzsch, Lea Maria Rønneberg Hyllested, L. Meegaard, Alexander Wiberg‐Hansen +2 more
2017Basic & Clinical Pharmacology & Toxicology13 citations
Semantic Scholar
Antidepressant drug use and subdural hematoma risk
D. Gaist, L. A. García Rodríguez, S. Hald, M. Hellfritzsch +4 more
2020Journal of Thrombosis and Haemostasis12 citations Open access
Semantic Scholar
Cohort selection in register‐based studies of direct oral anticoagulant users with atrial fibrillation: An inevitable trade‐off between selection bias and misclassification
M. Hellfritzsch, A. Pottegård, S. Haastrup, L. Rasmussen +1 more
2020Basic & Clinical Pharmacology & Toxicology11 citations
Semantic Scholar
Drug–Drug Interactions in the Treatment of Cancer-Associated Venous Thromboembolism with Direct Oral Anticoagulants
M. Hellfritzsch, J. Henriksen, M. Holt, E. Grove
2023Seminars in Thrombosis and Hemostasis10 citations
Semantic Scholar
Empirical validation of the reverse parametric waiting time distribution and standard methods to estimate prescription durations for warfarin
J. Thrane, H. Støvring, M. Hellfritzsch, J. Hallas +1 more
2018Pharmacoepidemiology and Drug Safety10 citations Open access
Semantic Scholar
Prophylaxis of Venous Thromboembolism in Children: A Systematic Review.
L. Pedersen, G.B. Villadsen, M. Hellfritzsch, A. Hvas
2022Seminars in Thrombosis and Hemostasis9 citations
Semantic Scholar
Antimycotic treatment of oral candidiasis in warfarin users.
D. B. Iversen, M. Hellfritzsch, T. Stage, R. Aabenhus +2 more
2020American Journal of Medicine6 citations Open access
Semantic Scholar
Methodological challenges when evaluating potential off‐label prescribing of drugs using electronic health care databases: A case study of dabigatran etexilate in Europe
M. Cainzos-Achirica, C. Varas-Lorenzo, A. Pottegård, J. Asmar +8 more
2018Pharmacoepidemiology and Drug Safety6 citations
Semantic Scholar
Inconsistencies in reporting of renal elimination among NOACs: the case of apixaban
M. Hellfritzsch, P. Damkier, A. Pottegård, T. Grønlykke +1 more
2016Pharmacoepidemiology and Drug Safety6 citations
Semantic Scholar
Apixaban or rivaroxaban in the treatment of acute venous thromboembolism?
M. Hellfritzsch, E. Grove, K. Adelborg
2019Annals of Translational Medicine5 citations Open access
Semantic Scholar
Use of dipeptidyl peptidase‐4 inhibitors and risk of splanchnic vein thrombosis: A Danish nationwide new‐user active comparator cohort study
A. Pottegård, L. Lund, D. Henriksen, L. Folkestad +3 more
2020Diabetes, obesity and metabolism4 citations Open access
Semantic Scholar
Using the Case-crossover Design to Assess Short-term Risks of Bleeding and Arterial Thromboembolism Following Switching Between Oral Anticoagulants in a Population-based Cohort of Atrial Fibrillation Patients.
M. Hellfritzsch, Shirley V. Wang, E. Grove, J. Gagne +2 more
2020American Journal of Epidemiology4 citations Open access
Semantic Scholar
[Severe dabigatran intoxication complicated by insufficient reversal by idarucizumab].
M. Hellfritzsch, A. Hvas
2020Ugeskrift for læger3 citations
Semantic Scholar
Use of beta-blockers and risk of serious upper gastrointestinal bleeding: a population-based case-control study
Mette Reilev, P. Damkier, L. Rasmussen, M. Olesen +9 more
2017Therapeutic Advances in Gastroenterology3 citations Open access
Semantic Scholar
Life-Threatening Contraceptive-Related Pulmonary Embolism in a 14-Year-Old Girl with Hereditary Thrombophilia
M. Hellfritzsch, E. Grove
2015The American journal of case reports3 citations Open access
Semantic Scholar
Drug-drug interactions between vitamin K antagonists and statins: a systematic review
A. Engell, A. Svendsen, B. Lind, T. Stage +2 more
2020European Journal of Clinical Pharmacology2 citations Open access
Semantic Scholar
Bisphosphonate use and risk of renal cell carcinoma: A population‐based case‐control study
Benjamin I. Chung, M. Hellfritzsch, S. P. Ulrichsen, H. Sørensen +1 more
2019Basic & Clinical Pharmacology & Toxicology1 citations Open access
Semantic Scholar
[Adverse events with oral anticoagulants].
A. Bovin, P. Knudsen, M. Hellfritzsch, E. Grove
2018Ugeskrift for læger1 citations
Semantic Scholar
[Venous thromboembolism in patients with COVID-19].
M. Hellfritzsch, T. Kümler, A. T. Hansen, Marianne Tang +5 more
20200 citations
Semantic Scholar
[Isoflavones have therapeutic efficacy inoestrogen deficiency].
M. Hellfritzsch, T. Kümler, A. T. Hansen, Marianne Tang +5 more
2020Ugeskrift for læger0 citations
Semantic Scholar
Venøs tromboembolisk sygdom ved COVID-19
M. Hellfritzsch, T. Kümler, A. T. Hansen, Marianne Tang +5 more
20200 citations
Semantic Scholar
Author response for "Use of dipeptidyl peptidase 4 inhibitors and risk of splanchnic vein thrombosis: A Danish nationwide new user active comparator cohort study"
A. Pottegård, L. Lund, D. Henriksen, L. Folkestad +3 more
20200 citations Open access
Semantic Scholar

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