Michael Mazya
About me
I am neurologist specializing in cerebrovascular diseases and acute neurological care.
Brief résumé
- Docent (assoc. prof.), KI, 2020-
- Head of Stroke Service, Karolinska University Hospital, 2020-
- Specialist physician in neurology, Karolinska University Hospital, 2015
- PhD at Karolinska Institutet, 2014
- Swedish Medical License, 2009
- University Medical Degree, Linköping University, 2007
Awards
- The Golden Headset Award, Swedish Acute Neurology Society, 2023
- Diploma for Excellent Supervision, MD Program, Karolinska Institutet, 2020
- Young Investigator Award, European Stroke Organisation Conference, 2015
- Outstanding Young Research in Stroke Award, European Stroke Conference 2012
Research grants, main applicant
- Angeby Foundation, 2026
- Swedish Heart Lung Foundation, 2024-25
- Swedish Neurological Society, 2025
- Wallenius Foundation, 2024
- ALF Research Grants, Region Stockholm, several in 2018, -20-22, -24-25, -27-29
- Clinical Researcher Grant (Klinisk Forskare), Region Stockholm, 2023-26
- Research Grants, The Swedish Stroke Association, several 2017-2024
- Innovation Grant, Region Stockholm, 2020-21
- Clinical Postdoctoral Grant, Region Stockholm, 2016-19
- Research Fellowship Grant (Forskar-ST), Region Stockholm, 2013-15
Positions of trust
- Dissertation Committee (Disputationskommittén), KI, member, 2021 - ongoing
- ESO Conference 2021-22, Educational Committee chair, Conference Planning Group member, Program Committee member
- Faculty Opponent, Habilitation (Docent), Masaryk University, Brno, Czech Republic 2021
- Angeby Foundation for Medical Research, grant reviewer, 2020-24
- Educational Committee, European Stroke Organisation, member, 2016-2020
- Swedish Acute Neurology Society (ANS), founding cashier, 2011-15. Chairman 2015-19.
- PhD Defence Examination Boards at KI and Lund University
Research
Over 70 peer reviewed publications in international journals since 2012, within these research areas:
- Acute reperfusion treatment of ischemic stroke
- Prehospital stroke triage and management
- Acute management of intracerebral hemorrhage
- Secondary prevention in stroke and TIA
I have authored the Swedish textbook in Acute Neurology published by Liber in 2025, together with Jonatan Salzer, Umeå University.
Teaching
PhD student supervision - completed
- Main supervisor, Tove Almqvist, MD, defended Sept 2026
- Main supervisor, Boris Keselman, MD, defended 2021
PhD student supervision - ongoing
- Main supervisor, Hannes Frejd, MD, planned defense 2028
- Main supervisor, Cecilia Ronnevi, MD, planned defense 2030
- Main supervisor Jafeth Lizana, MD, planned defense 2029
- Co-supervisor, Håkan Almqvist, MD, planned defense 2027
- Co-supervisor, Sanna Hagelberg Eng, MD, planned defense 2029
- Co-supervisor, Francesca Gasparini, MD, planned defense 2030
Main supervisor, MD Program Degree Projects
- Fredrik de Wahl (2015)
- Niklas Almqvist (2018)
- Harald Löfberg (2019)
- Sebastian Sköldblom (2019)
- Tove Almqvist (2020)
- Elin Wiebert (2020)
- Mimmi Sjöö (2021)
- Jonny Nordström (2023)
- Fredrik Gabrielson (2024)
- Carl Näslund (2025)
- Sahand Khogasteh Zonoozy (2026)
- Lin-Lin Pei (2026)
In 2016-2020, I was elected to the European Stroke Organisation Educational Committee, working with the World Stroke Academy, a collaborative educational project between the World Stroke Organisation and the European Stroke Organisation. It can be found at https://world-stroke-academy.org/ ;
In 2011, I set up a Swedish patient information website on functional and dissociative neurological symptoms and maintained it until 2022, when the responsibility was transferred to psychiatrist and rehabilitation specialist Carl Sjöström, MD. The site can be found at https://neurosymptoms.org/sv_SE/ ; and has since its inception been viewed over 1 million times.
Articles
- Article: AMERICAN JOURNAL OF NEURORADIOLOGY. 2026;:ajnr.A9646Almqvist T; Delgado AF; Sjöstrand C; Mazya MV
- Article: INTERNATIONAL JOURNAL OF STROKE. 2026;:17474930261455992Keselman B; Mazya MV; Strbian D; Nunes AP; Naldi A; Toni D; Petruzzellis M; Frisullo G; Jatuzis D; Strumia S; Ahmed N; Moreira T
- Journal article: EUROPEAN STROKE JOURNAL. 2026;11(Supplement_1):i688-i689Gjordeni M; Pansell J; Thelin E; Mazya M; Pourhamidi K; Lindsberg PJ; Mattila O; Cooray C
- Journal article: EUROPEAN STROKE JOURNAL. 2026;11(Supplement_1):i97Frejd H; Keselman B; Mazya M
- Journal article: EUROPEAN STROKE JOURNAL. 2026;11(Supplement_1):i410Almqvist T; Delagado AF; Sjöstrand C; Mazya M
- Journal article: EUROPEAN STROKE JOURNAL. 2026;11(Supplement_1):i416-i417Almqvist T; Delagado AF; Sjöstrand C; Mazya M
- Article: BMC MEDICINE. 2026;24(1):215Vercalsteren E; Mazya MV; Nystrom T; Darsalia V; Patrone C
- Article: LAKARTIDNINGEN. 2026;123:26161Lundberg J; Mazya M; Arnberg-Sandor F
- Article: NEW ENGLAND JOURNAL OF MEDICINE. 2026;394(5):442-450Ryan SJ; Jorstad OK; Skjelland M; Pesonen M; Simonsen CZ; Bek T; Blauenfeldt RA; Ijas P; Laitinen A; Khanevski A; Krohn J; Rodahl E; Lemmens R; Demeestere J; Cassiman C; Nakstad I; Evensen K; Sandell T; Hamann S; Truelsen TC; Christensen LM; Rosenbaum S; Matijosaitis V; Zemaitiene R; Ellekjaer H; Almaas E; Austeng D; Mazya MV; Traisk F; Ylikotila P; Salmi U; Jenssen KN; Lisether H; Breivik C; Devik K; Honningsvag L-ME; Valaikiene J; Cimbalas A; Malmberg VN; Anderson E; Roy A; Skattor TH; Kraglund KL; Kefaloykos C; Olsen IC; Vanacker P; Strbian D; Moe MC; Aamodt AH
- Article: EUROPEAN STROKE JOURNAL. 2025;10(3):988-994Saflund M; Matusevicius M; Egido JA; Ferro JM; Korv J; Melis M; Peeters A; Petruzzellis M; Rand V-M; Vilionskis A; Melancia D; Aguiar de Sousa D; Mazya MV; Moreira T; Ahmed N
- Article: FRONTIERS IN NEUROLOGY. 2025;16:1620170Almqvist T; Delgado AF; Sjoestrand C; Mazya MV
- Journal article: NEUROLOGY. 2025;104(10):e213619Fladt J; Benali F; Jaroenngarmsamer T; Bala F; Singh N; Nogueira RG; McTaggart R; Demchuk A; Poppe A; Buck BH; Tymianski M; Hill MD; Goyal M; Ganesh A; ESCAPE-NA1 Investigators
- Article: CLINICAL NEURORADIOLOGY. 2024;34(4):929-937Stahl F; Almqvist H; Aspelin A; Kolloch J; Ghalamkari O; Gontu V; Schaefer D; van de Haar P; Engel K-J; van Nijnatten F; Holmberg A; Mazya MV; Soderman M; Delgado AF
- Article: NEURORADIOLOGY. 2024;66(5):737-747Kits A; Al-Saadi J; De Luca F; Janzon F; Mazya MV; Lundberg J; Sprenger T; Skare S; Delgado AF
- Journal article: JAMA NETWORK OPEN. 2024;7(1):e2349628Benali F; Singh N; Fladt J; Jaroenngarmsamer T; Bala F; Ospel JM; Buck BH; Dowlatshahi D; Field TS; Hanel RA; Peeling L; Tymianski M; Hill MD; Goyal M; Ganesh A; ESCAPE-NA1 Investigators
- Article: STROKE: VASCULAR AND INTERVENTIONAL NEUROLOGY. 2023;3(6):e000932Paydarfar DA; Holodinsky JK; Mazya MV; Hill M; Menon B; Jayaraman M; Kamal N
- Article: AMERICAN JOURNAL OF NEURORADIOLOGY. 2023;44(5):523-529Stahl F; Almqvist H; Kolloch J; Aspelin A; Gontu V; Hummel E; van Vlimmeren M; Simon M; Thran A; Holmberg A; Mazya MV; Soderman M; Delgado AF
- Article: EUROPEAN JOURNAL OF NEUROLOGY. 2023;30(5):1312-1319Schwarz G; Bonato S; Lanfranconi S; Matusevicius M; Ghione I; Valcamonica G; Tsivgoulis G; Paiva Nunes A; Mancuso M; Zini A; Candelaresi P; Rand V-M; Comi GP; Mazya MV; Ahmed N
- Article: JOURNAL OF CLINICAL MEDICINE. 2023;12(8):2771Reale G; Caliandro P; Moreira TTP; Almqvist H; Giovannini S; Grannas D; Kotopouli MI; Laurienzo A; Loefberg H; Moci M; Skoeldblom S; Valente I; Zauli A; Holmin S; Mazya MV
- Article: LANCET NEUROLOGY. 2023;22(2):117-126Roaldsen MB; Eltoft A; Wilsgaard T; Christensen H; Engelter ST; Indredavik B; Jatuzis D; Karelis G; Korv J; Lundstrom E; Petersson J; Putaala J; Soyland M-H; Tveiten A; Bivard A; Johnsen SH; Mazya MV; Werring DJ; Wu TY; De Marchis GM; Robinson TG; Mathiesen EB
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All other publications
- Review: INSIGHTS INTO IMAGING. 2026;17(1):230Delgado AF; Fallmar D; Martin H; Mazya MV; Arnberg F; Kits A
- Conference publication: 2026;:a43.1-a4a43Arnberg Sandor F; Lundberg J; Solich A; Kuntze Söderqvist Å; Eneling J; Gontu V; Mansouri F; Ahmed N; Mazya M
- Review: STROKE AND VASCULAR NEUROLOGY. 2026;11(4):389-395Gjordeni M; Pansell J; Thelin EP; Mazya MV; Pourhamidi K; Lindsberg PJ; Mattila OS; Cooray C
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION A PRACTICAL GUIDE TO DIAGNOSIS AND TREATMENT OF HEMOSTATIC DISORDERS. 2026;p. 122-124Cerebral venous thrombosisMazya MV; Ohm J
- Study protocol: EUROPEAN STROKE JOURNAL. 2025;10(4):1502-1510Ryan SJ; Jorstad OK; Skjelland M; Simonsen CZ; Bek T; Blauenfeldt RA; Ijas P; Laitinen A; Khanevski AN; Krohn J; Rodahl E; Lemmens R; Demeestere J; Cassiman C; Nakstad I; Evensen K; Sandell T; Hamann S; Christensen LM; Rosenbaum S; Matijosaitis V; Zemaitiene R; Ellekjaer H; Austeng D; Truelsen TC; Mazya MV; Traisk F; Ylikotila P; Salmi U; Jenssen KN; Lisether H; Breivik C; Devik K; Honningsvag L-MS; Valaikiene J; Cimbalas A; Malmberg VN; Anderson E; De Raedt S; Tusscher MT; Ligot N; Lipski D; Bjorck F; Hamrin A; Solbakken T; Tharaldsen AR; Farmen AH; Helgesen A; Johnsen SH; Bertelsen G; Morsund AH; Holen E; Tveiten A; Johannessen HB; Kelly P; O'Neill E; Roy A; Kefaloykos C; Skattor TH; Kraglund KL; Sanders L; Vanacker P; Strbian D; Moe MC; Aamodt AH; TenCRAOS I
- Review: CEREBROVASCULAR DISEASES. 2025;55(6):680-689Pensato U; Demchuk AM; Tanaka K; Busto G; Fainardi E; Ospel JM; Alshamrani MA; Lun R; Simonetti R; Rodriguez-Luna D; Gioia LC; Mazya MV; Dowlatshahi D; Goldstein JN; Morotti A
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION. 2025;p. 176-177Mazya MV; Simonsson M
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION. 2025;p. 153-156Mazya MV; Simonsson M
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION. 2025;p. 96-100Mazya MV; Nekludov M
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION. 2025;p. 168-172Mazya MV
- Book chapter: BLOMBÄCK'S ESSENTIAL GUIDE TO BLOOD COAGULATION. 2025;p. 107-127Ohm J; Mazya MV; Magnusson M; Stål P
- Conference publication: INTERNATIONAL JOURNAL OF STROKE. 2025;20(2_SUPPL)Ryan S; Jorstad O; Skjelland M; Pesonen M; Simonsen C; Bek T; Blauenfeld R; Iljas P; Laitinen A; Khanevski A; Krohn J; Rodahl E; Lemmens R; Demeestere J; Cassiman C; Nakstad I; Evensen K; Sandell T; Hamann S; Truelsen T; Christensen LM; Rosenbaum S; Matijosaitis V; Zemaitiene R; Ellekjaer H; Almaas E; Austeng D; Mazya M; Traisk F; Ylikotila P; Salmi U; Lisether H; Devik K; Honningsvag L-M; Valaikiene J; Malmberg V; Roy A; Skattor T; Kraglund K; Olsen IC; Vanacker P; Strbian D; Moe M; Aamodt A
- Conference publication: INTERNATIONAL JOURNAL OF STROKE. 2025;20(2_SUPPL)Ryan S; Jorstad O; Skjelland M; Simonsen C; Bek T; Lemmens R; Mazya M; Hamann S; Christensen LM; Truelsen T; Strbian D; Moe M; Aamodt A
- Conference publication: INTERNATIONAL JOURNAL OF STROKE. 2025;20:27-28Ryan S; Jorstad O; Skjelland M; Pesonen M; Simonsen C; Bek T; Blauenfeld R; Iljas P; Laitinen A; Khanevski A; Krohn J; Rodahl E; Lemmens R; Demeestere J; Cassiman C; Nakstad I; Evensen K; Sandell T; Hamann S; Truelsen T; Christensen LM; Rosenbaum S; Matijosaitis V; Zemaitiene R; Ellekjaer H; Almaas E; Austeng D; Mazya M; Traisk F; Ylikotila P; Salmi U; Lisether H; Devik K; Honningsvag L-M; Valaikiene J; Malmberg V; Roy A; Skattor T; Kraglund K; Olsen IC; Vanacker P; Strbian D; Moe M; Aamodt A
- Conference publication: INTERNATIONAL JOURNAL OF STROKE. 2025;20:16Ryan S; Jorstad O; Skjelland M; Simonsen C; Bek T; Lemmens R; Mazya M; Hamann S; Christensen LM; Truelsen T; Strbian D; Moe M; Aamodt A
- Preprint: MEDRXIV. 2025Keselman B; Mazya M; Strbian D; Nunes AP; Naldi A; Toni D; Petruzzellis M; Frisullo G; Jatuzis D; Strumia S; Ahmed N; Moreira T
- Conference publication: EUROPEAN JOURNAL OF NEUROLOGY. 2025;32Aamodt A; Ryan S; Jorstad O; Skjelland M; Simonsen C; Ijas P; Bek T; Strbian D; Khanevski; Lemmens R; Nakstad I; Christensen L; Ellekjaer H; Matijosaitis V; Truelsen T; Rodahl E; Krohn J; Mazya M; Kraglund K; Lisether H; Devik K; Malmberg V; Valaikiene J; Ylikotila P; Moe M
- Editorial: DIABETES OBESITY & METABOLISM. 2024;26(7):2527-2530Darsalia V; Vercalsteren E; Karampatsi D; Romanitan MO; Mazya MV; Nystrom T; Patrone C
- Review: LAKARTIDNINGEN. 2023;120:23056Mazya M; Bartek J; Hansen B
- Conference publication: EUROPEAN JOURNAL OF NEUROLOGY. 2023;30:666Ryan S; Jorstad O; Skjelland M; Ijas P; Nakstad I; Jenssen K; Truelsen T; Valaikiene J; Mazya M; Ylikotila P; Vanacker P; Slautaite I; Matijosaitis V; Strbian D; Devik K; Johansen S; Ellekjaer H; Khanevski A; Kurz M; Tveiten A; Malmberg V; Morsund A; Christensen L; Simonsen C; Aamodt A
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Grants
- Swedish Heart-Lung Foundation1 January 2025 - 31 December 2026Bakgrund: Patienter med förmaksflimmer som tar direktverkande orala antikoagulantia (DOAK), har en årlig risk för ischemisk stroke på 1 2,5 %. Över 150 000 patienter i Sverige tar DOAK för förmaksflimmer, och 1600 4000 årliga fall av ischemisk stroke inträffar hos dessa. Evidensläget är oklart: Hur bör man göra med fortsatt antikoagulation? Är det bäst att behålla preparatet man hade när stroken inträffade? Bör man byta till annat preparat? Om byte är lämpligast, vilket läkemedel ger bäst skydd framöver? Målsättning: Huvudfrågan att besvara är: Vilken fortsatt blodförtunnande behandling är associerad med bäst långtidsutfall hos patienter som drabbas av ischemisk stroke under pågående behandling med blodförtunnande (antikoagulerande) läkemedel? Arbetsplan: Vi planerar en rikstäckande studie via det nationella kvalitetsregistret Riksstroke, med data insamlade under 2016-2024. Primärt utfallsmått kommer vara ett kombinerat utfall av ischemisk stroke, hemorragisk stroke eller död. Sekundära utfall kommer vara separata komponenter av primärutfallet. Utfallen kommer följas under hela datainsamlingsperioden och därmed möjliggörs time to event-analyser och långtidsprognos. Studiegrupperna kommer utgöras av patienter som 1. byter från en klass av DOAK till en annan (t.ex. faktor Xa-hämmare mot trombinhämmare)2. byter från DOAK till vitamin K-antagonist3. fortsätter med samma preparat4. byter till annat preparat i samma DOAK-klass (t.ex. apixaban till rivaroxaban). Betydelse: I brist på randomiserade kontrollerade studier på området, har projektet förutsättningar att direkt bidra till bättre underbyggda kliniska beslut, genom att ge information om vilken behandlingsstrategi som är kopplad till bästa möjliga patientutfall. Förutsättningarna att besvara frågorna är mycket goda, utifrån att Riksstroke är ett av världens mest kompletta register inom stroke, både avseende relevanta variabler, validitet hos insamlade data och mycket hög täckningsgrad.
- Southern and Eastern Norway Regional Health Authority1 January 2020TENECTEPLASE IN CENTRAL RETINAL ARTERY OCCLUSION STUDY (TenCRAOS)<br/><br/>neiForskningsopphold i utlandetThis prospective, randomised-controlled, double-dummy, double-blind phase 3 international multi-centre trial of TNK 0.25 mg/kg + placebo vs. ASA + placebo (2 arms with 1:1 block randomisation) in CRAO is soon completing the inclusion phase.76 of 78 patients have been included. Centers in all parts of Helse Sør-Øst have participated in addition to the other 3 Norwegian health regions and 7 other contras inin Europe and Australia are participating. The main results will be presented in 2025, planned to be presented at the large clinical trials session at the European Stroke Organization Conference with simultaneous publication in high-impact journal.<br/>
- Swedish Research Council1 January 2017 - 31 December 2019
Employments
- Affiliated to Research, Department of Clinical Neuroscience, Karolinska Institutet, 2011-2029
Degrees and Education
- Docent, Karolinska Institutet, 2020
- Degree Of Doctor Of Philosophy, Department of Clinical Neuroscience, Karolinska Institutet, 2014