Mika R. Niemela

Topeliuksenkatu 5, PL 266
Helsinki, 00029, Finland

Last Updated: 09/26/2026

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Found 294 publications

Declining age-adjusted surgical incidence of intracranial meningiomas: a 19-year retrospective analysis from an academic hospital.

Declining age-adjusted surgical incidence of intracranial meningiomas: a 19-year retrospective analysis from an academic hospital.

Journal: Journal of neuro-oncology

Published: June 07, 2026

Surgery for Elderly Patients with Nonfunctional Pituitary Adenomas Appears to Be Safe.

Surgery for Elderly Patients with Nonfunctional Pituitary Adenomas Appears to Be Safe.

Journal: World neurosurgery

Published: May 24, 2026

Longitudinal volume evolution of large and giant intracranial aneurysms following endovascular flow diversion.

Longitudinal volume evolution of large and giant intracranial aneurysms following endovascular flow diversion.

Journal: Brain & spine

Published: March 15, 2026

Detection of Ruptured and Unruptured Brain Arteriovenous Malformations Has Decreased: A Population-Based Study.

Detection of Ruptured and Unruptured Brain Arteriovenous Malformations Has Decreased: A Population-Based Study.

Journal: Neurology

Published: February 26, 2026

Prevalence of Adolescents' Persistent High Utilization of Outpatient Healthcare Services and ICD-10 Diagnoses: A Retrospective 4-Year Population-Based Register Study.

Prevalence of Adolescents' Persistent High Utilization of Outpatient Healthcare Services and ICD-10 Diagnoses: A Retrospective 4-Year Population-Based Register Study.

Journal: Journal of primary care & community health

Published: February 21, 2026

Risk factors for postoperative epidural hematoma after microsurgical decompression of lumbar spinal stenosis.

Risk factors for postoperative epidural hematoma after microsurgical decompression of lumbar spinal stenosis.

Journal: Brain & spine

Published: February 14, 2026

Technique and device specific diffusion-weighted imaging detected ischemic lesions and occlusion outcomes in endovascular treatment of unruptured aneurysms.

Technique and device specific diffusion-weighted imaging detected ischemic lesions and occlusion outcomes in endovascular treatment of unruptured aneurysms.

Journal: Acta neurochirurgica

Published: January 17, 2026

Clinical outcomes of conservative, endovascular and microsurgical management of unruptured giant intracranial aneurysms: 3-year follow-up of the prospective, multinational Giant Intracranial Aneurysm Registry.

Clinical outcomes of conservative, endovascular and microsurgical management of unruptured giant intracranial aneurysms: 3-year follow-up of the prospective, multinational Giant Intracranial Aneurysm Registry.

Journal: Journal of neurology, neurosurgery, and psychiatry

Published: January 17, 2026

Selective brain cooling via cerebrospinal fluid exchange: Proof of concept in a porcine model.

Selective brain cooling via cerebrospinal fluid exchange: Proof of concept in a porcine model.

Journal: Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

Published: January 16, 2026

Intracranial Aneurysm Wall Phenotypes: Clinical, Morphological, and Hemodynamic Influences.

Intracranial Aneurysm Wall Phenotypes: Clinical, Morphological, and Hemodynamic Influences.

Journal: Stroke (Hoboken, N.J.)

Published: December 01, 2025

Association between persisting peritumoral brain edema and seizures as well as worse functional outcome after meningioma surgery: a retrospective study of 218 patients.

Association between persisting peritumoral brain edema and seizures as well as worse functional outcome after meningioma surgery: a retrospective study of 218 patients.

Journal: Journal of neurosurgery

Published: November 26, 2025

Intracavernous Aneurysms, Their Characteristics, and Rate of Growth: An Analysis of 104 Aneurysms.

Intracavernous Aneurysms, Their Characteristics, and Rate of Growth: An Analysis of 104 Aneurysms.

Journal: World neurosurgery

Published: November 25, 2025

Showing 1-12 of 294

Last Updated: 09/26/2026