Works by Korja, Miikka

Results: 55

Symptomatic peritumoral edema is associated with surgical outcome: a consecutive series of 72 supratentorial meningioma patients ≥ 80 years of age.

Published in:

Journal of Neuro-Oncology, 2020, v. 148, n. 1, p. 109, doi. 10.1007/s11060-020-03501-z

By:

Schwartz, Christoph;
Rautalin, Ilari;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Disparities in glioblastoma survival by case volume: a nationwide observational study.

Published in:

Journal of Neuro-Oncology, 2020, v. 147, n. 2, p. 361, doi. 10.1007/s11060-020-03428-5

By:

Raj, Rahul;
Seppä, Karri;
Luostarinen, Tapio;
Malila, Nea;
Seppälä, Matti;
Pitkäniemi, Janne;
Korja, Miikka

Publication type:

Article

Amplification and overexpression of KIT, PDGFRA, and VEGFR2 in medulloblastomas and primitive neuroectodermal tumors.

Published in:

Journal of Neuro-Oncology, 2010, v. 97, n. 2, p. 217, doi. 10.1007/s11060-009-0014-2

By:

Blom, Tea;
Roselli, Annariikka;
Häyry, Valtteri;
Tynninen, Olli;
Wartiovaara, Kirmo;
Korja, Miikka;
Nordfors, Kristiina;
Haapasalo, Hannu;
Nupponen, Nina N.

Publication type:

Article

Has a fast treatment transition from surgical to endovascular operations improved the survival of aneurysmal subarachnoid hemorrhage?

Published in:

Acta Neurochirurgica, 2025, v. 167, n. 1, p. 1, doi. 10.1007/s00701-025-06447-1

By:

Asikainen, Aleksanteri;
Rautalin, Ilari;
Raj, Rahul;
Korja, Miikka;
Niemelä, Mika

Publication type:

Article

Changes in treatment of intracranial aneurysms during the last decade in a large European neurovascular center.

Published in:

Acta Neurochirurgica, 2024, v. 166, n. 1, p. 1, doi. 10.1007/s00701-024-06064-4

By:

Calvanese, Francesco;
Auricchio, Anna Maria;
Pohjola, Anni;
Hafez, Ahmad;
Nurminen, Ville;
Korja, Miikka;
Numminen, Jussi;
Lehecka, Martin;
Raj, Rahul;
Niemelä, Mika

Publication type:

Article

Changes in treatment of intracranial aneurysms during the last decade in a large European neurovascular center.

Published in:

Acta Neurochirurgica, 2024, v. 166, n. 1, p. 1, doi. 10.1007/s00701-024-06064-4

By:

Calvanese, Francesco;
Auricchio, Anna Maria;
Pohjola, Anni;
Hafez, Ahmad;
Nurminen, Ville;
Korja, Miikka;
Numminen, Jussi;
Lehecka, Martin;
Raj, Rahul;
Niemelä, Mika

Publication type:

Article

Defining activities in neurovascular microsurgery training: entrustable professional activities for vascular neurosurgery.

Published in:

Acta Neurochirurgica, 2023, v. 165, n. 1, p. 27, doi. 10.1007/s00701-022-05372-x

By:

van Lieshout, Jasper Hans;
Malzkorn, Bastian;
Steiger, Hans-Jakob;
Karadag, Cihat;
Kamp, Marcel A.;
Vajkoczy, Peter;
Beck, Jürgen;
Peschillo, Simone;
Rohde, Veit;
Walsh, Daniel;
Lukshin, Vasiliy;
Korja, Miikka;
Cenzato, Marco;
Raabe, Andreas;
Gruber, Andreas;
Hänggi, Daniel;
Boogaarts, H. D.

Publication type:

Article

A new home for the Helsinki Neurosurgical Department — closure of Töölö Hospital after 90 years of neurosurgical history.

Published in:

Acta Neurochirurgica, 2022, v. 164, n. 6, p. 1447, doi. 10.1007/s00701-022-05202-0

By:

Veldeman, Michael;
Rossmann, Tobias;
Korja, Miikka;
Laakso, Aki;
Lehecka, Martin;
Niemelä, Mika

Publication type:

Article

In-hospital postoperative opioid use and its trends in neurosurgery between 2007 and 2018.

Published in:

Acta Neurochirurgica, 2022, v. 164, n. 1, p. 107, doi. 10.1007/s00701-021-05021-9

By:

Rautalin, Ilari;
Kallio, Miia;
Korja, Miikka

Publication type:

Article

Aneurysmal Subarachnoid Hemorrhage in Hospitalized Patients on Anticoagulants—A Two Center Matched Case-Control Study.

Published in:

Journal of Clinical Medicine, 2023, v. 12, n. 4, p. 1476, doi. 10.3390/jcm12041476

By:

Veldeman, Michael;
Rossmann, Tobias;
Weiss, Miriam;
Conzen-Dilger, Catharina;
Korja, Miikka;
Hoellig, Anke;
Virta, Jyri J.;
Satopää, Jarno;
Luostarinen, Teemu;
Clusmann, Hans;
Niemelä, Mika;
Raj, Rahul

Publication type:

Article

Screening tools for early neuropsychological impairment after aneurysmal subarachnoid hemorrhage.

Published in:

2020

By:

Rautalin, Ilari M.;
Sebök, Martina;
Germans, Menno R.;
Korja, Miikka;
Dannecker, Noemi;
Zindel-Geisseler, Olivia;
Brugger, Peter;
Regli, Luca;
Stienen, Martin N.

Publication type:

journal article

Is surgery justified for 80-year-old or older intracranial meningioma patients? A systematic review.

Published in:

Neurosurgical Review, 2021, v. 44, n. 2, p. 1061, doi. 10.1007/s10143-020-01282-7

By:

Rautalin, Ilari;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Obesity paradox in subarachnoid hemorrhage: a systematic review.

Published in:

Neurosurgical Review, 2020, v. 43, n. 6, p. 1555, doi. 10.1007/s10143-019-01182-5

By:

Rautalin, Ilari;
Kaprio, Jaakko;
Korja, Miikka

Publication type:

Article

Chromogenic in situ hybridization-detected hotspot MYCN amplification associates with Ki-67 expression and inversely with nestin expression in neuroblastomas.

Published in:

2005

By:

Korja, Miikka;
Finne, Jukka;
Salmi, Toivo T.;
Kalimo, Hannu;
Karikoski, Riitta;
Tanner, Minna;
Isola, Jorma;
Haapasalo, Hannu

Publication type:

journal article

Risk of hospitalization with neurodegenerative disease after moderate-to-severe traumatic brain injury in the working-age population: A retrospective cohort study using the Finnish national health registries.

Published in:

2017

By:

Raj, Rahul;
Kaprio, Jaakko;
Korja, Miikka;
Mikkonen, Era D.;
Jousilahti, Pekka;
Siironen, Jari

Publication type:

journal article

Multiple meningiomas in two male-to-female transsexual patients with hormone replacement therapy: A report of two cases and a brief literature review.

Published in:

Surgical Neurology International, 2018, p. 1, doi. 10.4103/sni.sni_22_18

By:

Raj, Rahul;
Korja, Miikka;
Koroknay-Pál, Päivi;
Niemelä, Mika

Publication type:

Article

Cholesterol as a Risk Factor for Subarachnoid Hemorrhage: A Systematic Review.

Published in:

PLoS ONE, 2016, v. 11, n. 4, p. 1, doi. 10.1371/journal.pone.0152568

By:

Lindbohm, Joni Valdemar;
Kaprio, Jaakko;
Korja, Miikka

Publication type:

Article

Subarachnoid hemorrhage in type 1 diabetes: a prospective cohort study of 4,083 patients with diabetes.

Published in:

2013

By:

Korja, Miikka;
Thorn, Lena M;
Hägg, Stefanie;
Putaala, Jukka;
Liebkind, Ron;
Harjutsalo, Valma;
Forsblom, Carol M;
Gordin, Daniel;
Tatlisumak, Turgut;
Groop, Per-Henrik;
FinnDiane Study Group

Publication type:

journal article

Subarachnoid Hemorrhage in Type 1 Diabetes.

Published in:

Diabetes Care, 2013, v. 36, n. 11, p. 3754, doi. 10.2337/dc13-0260

By:

KORJA, MIIKKA;
THORN, LENA M.;
HÄGG, STEFANIE;
PUTAALA, JUKKA;
LIEBKIND, RON;
HARJUTSALO, VALMA;
FORSBLOM, CAROL M.;
GORDIN, DANIEL;
TATLISUMAK, TURGUT;
GROOP, PER-HENRIK

Publication type:

Article

Targeting High Mobility Group Box 1 in Subarachnoid Hemorrhage: A Systematic Review.

Published in:

International Journal of Molecular Sciences, 2020, v. 21, n. 8, p. 2709, doi. 10.3390/ijms21082709

By:

Muhammad, Sajjad;
Chaudhry, Shafqat Rasul;
Kahlert, Ulf Dietrich;
Lehecka, Martin;
Korja, Miikka;
Niemelä, Mika;
Hänggi, Daniel

Publication type:

Article

Unverricht-Lundborg disease.

Published in:

Epileptic Disorders, 2016, v. 18, p. S28, doi. 10.1684/epd.2016.0841

By:

Crespel, Arielle;
Ferlazzo, Edoardo;
Franceschetti, Silvana;
Genton, Pierre;
Gouider, Riadh;
Kälviäinen, Reetta;
Korja, Miikka;
Lehtinen, Maria K.;
Mervaala, Esa;
Simonato, Michele;
Vaarmann, Annika

Publication type:

Article

Peritumoral edema resolves infrequently in surgically treated patients with intracranial meningioma– a retrospective study of 279 meningioma patients.

Published in:

Journal of Neuro-Oncology, 2025, v. 173, n. 1, p. 83, doi. 10.1007/s11060-025-04964-8

By:

Laajava, Joonas;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Surgeon experience in glioblastoma surgery of the elderly—a multicenter, retrospective cohort study.

Published in:

Journal of Neuro-Oncology, 2023, v. 161, n. 3, p. 563, doi. 10.1007/s11060-023-04252-3

By:

Pöppe, Johannes P.;
Machegger, Lukas;
Steinbacher, Jürgen;
Stefanits, Harald;
Eisschiel, Sophie;
Gruber, Andreas;
Demetz, Matthias;
Ladisich, Barbara;
Kraus, Theo F.J.;
Weis, Serge;
Spiegl-Kreinecker, Sabine;
Romagna, Alexander;
Griessenauer, Christoph J.;
Jahromi, Behnam Rezai;
Rautalin, Ilari;
Niemelä, Mika;
Korja, Miikka;
Schwartz, Christoph

Publication type:

Article

Surgery on giant meningiomas in very old patients entails frequent postoperative intracranial hemorrhages and atypical histopathology.

Published in:

Journal of Neuro-Oncology, 2021, v. 152, n. 1, p. 195, doi. 10.1007/s11060-020-03693-4

By:

Haeren, Roel H.L.;
Rautalin, Ilari;
Schwartz, Christoph;
Korja, Miikka;
Niemelä, Mika

Publication type:

Article

Intensive care of traumatic brain injury and aneurysmal subarachnoid hemorrhage in Helsinki during the Covid-19 pandemic.

Published in:

Acta Neurochirurgica, 2020, v. 162, n. 11, p. 2715, doi. 10.1007/s00701-020-04583-4

By:

Luostarinen, Teemu;
Virta, Jyri;
Satopää, Jarno;
Bäcklund, Minna;
Kivisaari, Riku;
Korja, Miikka;
Raj, Rahul

Publication type:

Article

Microsurgical dissection of Sylvian fissure—short technical videos of third generation cerebrovascular neurosurgeons.

Published in:

Acta Neurochirurgica, 2019, v. 161, n. 9, p. 1743, doi. 10.1007/s00701-019-03999-x

By:

Muhammad, Sajjad;
Tanikawa, Rokuya;
Lawton, Michael;
Regli, Luca;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Sex Differences in Case Fatality of Aneurysmal Subarachnoid Hemorrhage: A Systematic Review.

Published in:

Neuroepidemiology, 2024, v. 58, n. 6, p. 412, doi. 10.1159/000538562

By:

Asikainen, Aleksanteri;
Korja, Miikka;
Kaprio, Jaakko;
Rautalin, Ilari

Publication type:

Article

Case Fatality Rates of Subarachnoid Hemorrhage Are Decreasing with Substantial between-Country Variation: A Systematic Review of Population-Based Studies between 1980 and 2020.

Published in:

Neuroepidemiology, 2022, v. 56, n. 6, p. 402, doi. 10.1159/000526983

By:

Mahlamäki, Kasper;
Rautalin, Ilari;
Korja, Miikka

Publication type:

Article

Hemorrhagic Stroke in Atrial Fibrillation: Trends in Incidence, Case Fatality, and Prior Oral Anticoagulation.

Published in:

Journal of the American Heart Association, 2025, v. 14, n. 12, p. 1, doi. 10.1161/JAHA.124.040360

By:

Tiili, Paula;
Lehto, Mika;
Halminen, Olli;
Haukka, Jari;
Lehtonen, Ossi;
Linna, Miika;
Satopää, Jarno;
Korja, Miikka;
Niemelä, Mika;
Kinnunen, Janne;
Aro, Aapo L.;
Mustonen, Pirjo;
Hartikainen, Juha;
Juhani Airaksinen, K. E.;
Putaala, Jukka

Publication type:

Article

Risk Factors for Delayed Cerebral Ischemia in Good-Grade Patients With Aneurysmal Subarachnoid Hemorrhage.

Published in:

2022

By:

Rautalin, Ilari;
Juvela, Seppo;
Martini, Michael L.;
Macdonald, Robert Loch;
Korja, Miikka

Publication type:

journal article

Machine learning-based dynamic mortality prediction after traumatic brain injury.

Published in:

Scientific Reports, 2019, v. 9, n. 1, p. 1, doi. 10.1038/s41598-019-53889-6

By:

Raj, Rahul;
Luostarinen, Teemu;
Pursiainen, Eetu;
Posti, Jussi P.;
Takala, Riikka S. K.;
Bendel, Stepani;
Konttila, Teijo;
Korja, Miikka

Publication type:

Article

Physical activity associates with subarachnoid hemorrhage risk– a population-based long-term cohort study.

Published in:

Scientific Reports, 2019, v. 9, n. 1, p. N.PAG, doi. 10.1038/s41598-019-45614-0

By:

Lindbohm, Joni V.;
Rautalin, Ilari;
Jousilahti, Pekka;
Salomaa, Veikko;
Kaprio, Jaakko;
Korja, Miikka

Publication type:

Article

Shunt catheter migration into pulmonary arteries.

Published in:

2008

By:

Korja, Miikka;
Karvonen, Matti K.;
Haapanen, Arto;
Marttila, Reijo J.

Publication type:

Case Study

Recovery Potential of Spinal Meningioma Patients With Preoperative Loss of Walking Ability Following Surgery – A Retrospective Single-Center Study.

Published in:

Neurospine, 2022, v. 19, n. 1, p. 77, doi. 10.14245/ns.2142956.478

By:

Vasankari, Ville;
Haeren, Roel;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Mortality of older patients with dementia after surgery for chronic subdural hematoma: a nationwide study.

Published in:

Age & Ageing, 2021, v. 50, n. 3, p. 815, doi. 10.1093/ageing/afaa193

By:

Tommiska, Pihla;
Korja, Miikka;
Siironen, Jari;
Kaprio, Jaakko;
Raj, Rahul

Publication type:

Article

Saccular intracranial aneurysm: pathology and mechanisms.

Published in:

Acta Neuropathologica, 2012, v. 123, n. 6, p. 773, doi. 10.1007/s00401-011-0939-3

By:

Frösen, Juhana;
Tulamo, Riikka;
Paetau, Anders;
Laaksamo, Elisa;
Korja, Miikka;
Laakso, Aki;
Niemelä, Mika;
Hernesniemi, Juha

Publication type:

Article

Ambulatory Care vs Overnight Hospitalization After Anterior Surgery for Cervical Radiculopathy: The FACADE Randomized Clinical Trial.

Published in:

JAMA Network Open, 2024, v. 7, n. 11, p. e2447459, doi. 10.1001/jamanetworkopen.2024.47459

By:

Lönnrot, Kimmo;
Taimela, Simo;
Satopää, Jarno;
Saarenpää, Ilkka;
Leinonen, Ville;
Kivelev, Juri;
Silvasti-Lundell, Marja;
Förster, Johannes;
Pitkänen, Mikko;
Raj, Rahul;
Kauppinen, Mikko;
Westermarck, Riitta;
Jahromi, Behnam Rezai;
Koski-Palkén, Anniina;
Seppälä, Matti;
Kivipelto, Leena;
Antinheimo, Jussi;
Korja, Miikka;
Czuba, Tomasz;
Järvinen, Teppo L. N.

Publication type:

Article

Incidence of surgery for chronic subdural hematoma in Finland during 1997-2014: a nationwide study.

Published in:

Journal of Neurosurgery, 2022, v. 136, n. 4, p. 1186, doi. 10.3171/2021.3.JNS21281

By:

Tommiska, Pihla;
Luostarinen, Teemu;
Kaprio, Jaakko;
Korja, Miikka;
Lönnrot, Kimmo;
Kivisaari, Riku;
Raj, Rahul

Publication type:

Article

Size and location of ruptured intracranial aneurysms: consecutive series of 1993 hospital-admitted patients.

Published in:

Journal of Neurosurgery, 2017, v. 127, n. 4, p. 748, doi. 10.3171/2016.9.JNS161085

By:

Korja, Miikka;
Kivisaari, Riku;
Jahromi, Behnam Rezai;
Lehto, Hanna

Publication type:

Article

Preoperative identification of neurosurgery patients with a high risk of in-hospital complications: a prospective cohort of 418 consecutive elective craniotomy patients.

Published in:

Journal of Neurosurgery, 2015, v. 123, n. 3, p. 594, doi. 10.3171/2014.11.JNS141970

By:

Reponen, Elina;
Korja, Miikka;
Niemi, Tomi;
Silvasti-Lundell, Marja;
Hernesniemi, Juha;
Tuominen, Hanna

Publication type:

Article

Polysialic acid is associated with better prognosis and IDH1-mutation in diffusely infiltrating astrocytomas.

Published in:

BMC Cancer, 2014, v. 14, p. 1, doi. 10.1186/1471-2407-14-623

By:

Mäkelä, Katri;
Nordfors, Kristiina;
Finne, Jukka;
Jokilammi, Anne;
Paavonen, Timo;
Haapasalo, Hannu;
Korja, Miikka;
Haapasalo, Joonas

Publication type:

Article

Polysialic acid is associated with better prognosis and IDH1-mutation in diffusely infiltrating astrocytomas.

Published in:

2014

By:

Mäkelä, Katri;
Nordfors, Kristiina;
Finne, Jukka;
Jokilammi, Anne;
Paavonen, Timo;
Haapasalo, Hannu;
Korja, Miikka;
Haapasalo, Joonas

Publication type:

journal article

Array-based gene expression, CGH and tissue datadefines a 12q24 gain in neuroblastic tumors withprognostic implication.

Published in:

BMC Cancer, 2010, v. 10, p. 181, doi. 10.1186/1471-2407-10-181

By:

Wolf, Maija;
Korja, Miikka;
Karhu, Ritva;
Edgren, Henrik;
Kilpinen, Sami;
Ojala, Kalle;
Mousses, Spyro;
Kallioniemi, Anne;
Haapasalo, Hannu

Publication type:

Article

The tumour-associated carbonic anhydrases CA II, CA IX and CA XII in a group of medulloblastomas and supratentorial primitive neuroectodermal tumours: an association of CA IX with poorprognosis.

Published in:

BMC Cancer, 2010, v. 10, p. 148, doi. 10.1186/1471-2407-10-148

By:

Nordfors, Kristiina;
Haapasalo, Joonas;
Korja, Miikka;
Niemelä, Anssi;
Laine, Jukka;
Parkkila, Anna-Kaisa;
Pastorekova, Silvia;
Pastorek, Jaromir;
Waheed, Abdul;
Sly, William S.;
Parkkila, Seppo;
Haapasalo, Hannu

Publication type:

Article

Absence of polysialylated NCAM is an unfavorable prognostic phenotype for advanced stage neuroblastoma.

Published in:

BMC Cancer, 2009, v. 9, p. 1, doi. 10.1186/1471-2407-9-57

By:

Korja, Miikka;
Jokilammi, Anne;
Salmi, Toivo T.;
Kalimo, Hannu;
Pelliniemi, Tarja-Terttu;
Isola, Jorma;
Rantala, Immo;
Haapasalo, Hannu;
Finne, Jukka

Publication type:

Article

Neuron navigator 3 alterations in nervous system tumors associate with tumor malignancy grade and prognosis.

Published in:

Genes, Chromosomes & Cancer, 2013, v. 52, n. 2, p. 191, doi. 10.1002/gcc.22019

By:

Carlsson, Emilia;
Krohn, Kai;
Ovaska, Kristian;
Lindberg, Pia;
Häyry, Valtteri;
Maliniemi, Pilvi;
Lintulahti, Anu;
Korja, Miikka;
Kivisaari, Riku;
Hussein, Samer;
Sarna, Seppo;
Niiranen, Kirsi;
Hautaniemi, Sampsa;
Haapasalo, Hannu;
Ranki, Annamari

Publication type:

Article

Peritumoral T2/FLAIR hyperintense MRI findings of meningiomas are not necessarily edema and may persist permanently: a systematic review.

Published in:

Lasers in Medical Science, 2023, v. 38, n. 1, p. 1, doi. 10.1007/s10143-023-02094-1

By:

Laajava, Joonas;
Korja, Miikka

Publication type:

Article

Mortality of surgically treated 80-year-old or older intracranial meningioma patients in comparison to matched general population.

Published in:

Scientific Reports, 2021, v. 11, n. 1, p. 1, doi. 10.1038/s41598-021-90842-y

By:

Rautalin, Ilari;
Schwartz, Christoph;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article

Risk Factors and Their Combined Effects on the Incidence Rate of Subarachnoid Hemorrhage – A Population-Based Cohort Study.

Published in:

PLoS ONE, 2013, v. 8, n. 9, p. 1, doi. 10.1371/journal.pone.0073760

By:

Korja, Miikka;
Silventoinen, Karri;
Laatikainen, Tiina;
Jousilahti, Pekka;
Salomaa, Veikko;
Hernesniemi, Juha;
Kaprio, Jaakko

Publication type:

Article

Screening of unruptured intracranial aneurysms in 50 to 60-year-old female smokers: a pilot study.

Published in:

Scientific Reports, 2021, v. 11, n. 1, p. 1, doi. 10.1038/s41598-021-02963-z

By:

Huhtakangas, Justiina;
Numminen, Jussi;
Pekkola, Johanna;
Niemelä, Mika;
Korja, Miikka

Publication type:

Article