Explanipedia

Under forty hours of laboratory training may be sufficient for teaching basic microsurgical skills to novices Open

A. Yousfi, Ville Vasankari, Anni Pohjola, Annamaria Auricchio, Francesco Calvanese , et al. · 2025

Background Structured laboratory-based microsurgical training is considered beneficial for junior residents before they begin to work in a neurosurgical operating room. The optimal duration of such training remains unclear. We studied the …

Video gaming facilitates adaptation to surgical exoscopes – a laboratory experiment Open

A. Yousfi, Anni Pohjola, Ville Vasankari, Ahmad Hafez, Martin Lehečka · 2025

Introduction Digital 3D exoscopes are novel alternatives for operating microscopes in microneurosurgery. We studied the potential benefits of a background in video gaming on adaptation to exoscopic microsurgery. Such effects have not been …

How I do it: exoscopic disconnection of anterior fossa dural arteriovenous fistulae Open

Sergio García-García, Hrvoje Barić, Anni Pohjola, Martin Lehečka · 2025

Selective Microsurgical Disconnection of Greater Sphenoid Wing Dural Arteriovenous Fistula Through the Subtemporal Approach Under Exoscope Magnification Open

Francesco Calvanese, Annamaria Auricchio, Rahul Raj, Martin Lehečka · 2025

Association between postoperative thromboembolic and hemorrhagic complications and clinical outcomes after surgery for chronic subdural hematoma in patients with anticoagulation therapy for atrial fibrillation Open

Pihla Tommiska, Oula Knuutinen, Kimmo Lönnrot, Riku Kivisaari, Rahul Raj , et al. · 2025

Purpose A substantial proportion of patients undergoing surgery for chronic subdural hematoma (CSDH) use anticoagulation medication due to atrial fibrillation (AF). We assessed the risk of postoperative thromboembolic and hemorrhagic compl…

Digital 3D exoscope is an effective tool for the surgery of falx and parasagittal meningiomas Open

Ville Vasankari, Sergio García-Sánchez, Hrvoje Barić, Mika Niemelä, Martin Lehečka · 2025

Exoscopic bypass learning curve: a one year prospective laboratory training study Open

Oriela Rustemi, João Silva, Camille Nether, Mika Niemelä, Martin Lehečka , et al. · 2025

3D exoscopic versus microscopic superficial temporal artery to middle cerebral artery bypass surgery for moyamoya disease – a comparative series Open

Michael Veldeman, Tobias Rossmann, Ville Nurminen, Justiina Huhtakangas, Roel Hubert Louis Haeren , et al. · 2024

Even short-term training improves the skills of novice exoscope users: a prospective laboratory experiment Open

Ville Vasankari, Ahmad Hafez, Anni Pohjola, Annamaria Auricchio, Francesco Calvanese , et al. · 2024

Long-term treatment outcomes and natural course of low-grade intracranial dural arteriovenous fistulas Open

Tobias Rossmann, Michael Veldeman, Elias Oulasvirta, Ville Nurminen, Philip-Rudolf Rauch , et al. · 2024

OBJECTIVE In contrast to high-grade dural arteriovenous fistula (dAVF), low-grade dAVF is mainly associated with tinnitus and carries a low risk of morbidity and mortality. It remains unclear whether the benefits of active interventions ou…

Digital exoscope versus surgical microscope in spinal dural arteriovenous fistula surgery: a comparative series Open

Annamaria Auricchio, Francesco Calvanese, Ville Vasankari, Rahul Raj, C. Galle , et al. · 2024

OBJECTIVE Surgical treatment of spinal dural arteriovenous fistulas (DAVFs) has been reported to be superior to endovascular treatment in terms of occlusion of the fistula. Despite the increased availability of digital 3D exoscopes, the po…

Digital 3D Exoscope is Safe and Effective in Surgery for Intradural Extramedullary Tumors: A Comparative Series Open

Francesco Calvanese, Annamaria Auricchio, Ville Vasankari, Rahul Raj, C. Galle , et al. · 2024

This study demonstrates that exoscope-assisted surgery for spinal intradural extramedullary tumors is comparable in safety and effectiveness to traditional microscopic surgery.

3D Exoscopic versus Microscopic Superficial Temporal Artery to Middle Cerebral Artery Bypass Surgery for Moyamoya Disease – a Comparative Series Open

Michael Veldeman, Tobias Rossmann, Ville Nurminen, Justiina Huhtakangas, Roel Haeren , et al. · 2024

Exploring Cytokeratin Profile Of Cerebellopontine Angle Epidermoid Cysts Open

Anselmi Kovalainen, Olli Tynninen, Justiina Huhtakangas, Martin Lehečka · 2024

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

Francesco Calvanese, Annamaria Auricchio, Anni Pohjola, Ahmad Hafez, Ville Nurminen , et al. · 2024

Recurrency And Morbidity In Cerebellopontine Angle Epidermoid Cysts Open

Anselmi Kovalainen, Justiina Huhtakangas, Martin Lehečka · 2024

Exoscopic resection of giant olfactory groove meningioma Open

Francesco Calvanese, Annamaria Auricchio, Martin Lehečka · 2023

Olfactory groove meningiomas represent 8%–13% of all intracranial meningiomas. Gross-total resection for large (4–6 cm) and giant (> 6 cm) cases remains challenging due to their relationship with critical neurovascular structures and exten…

Introduction. Use of the exoscope in neurosurgery Open

Constantinos G. Hadjipanayis, Libby Kosnik Infinger, Martin Lehečka, Gustavo Pradilla, Gabriel Zada · 2023

Optimal intraoperative visualization has been the cornerstone for successful completion of cranial, spinal, and peripheral nerve neurosurgery. The conventional operating microscope has been the most important advance in neurosurgery since …

Exoscopic extradural anterior clinoidectomy Open

Annamaria Auricchio, Francesco Calvanese, Martin Lehečka · 2023

Extradural anterior clinoidectomy is a resourceful technique to decompress the optic nerve as well as increase exposure of the parasellar region during extensive approaches. Despite requiring adjunctive epidural bone work, this technique a…

Taming the exoscope: a one-year prospective laboratory training study Open

João Silva, Oriela Rustemi, Donika Ivova Vezirska, Mika Niemelä, Martin Lehečka , et al. · 2023

Herpesviruses, polyomaviruses, parvoviruses, papillomaviruses, and anelloviruses in vestibular schwannoma Open

Maria K. Jauhiainen, Ushanandini Mohanraj, Martin Lehečka, Mika Niemelä, Timo Hirvonen , et al. · 2023

Etiology of vestibular schwannoma (VS) is unknown. Viruses can infect and reside in neural tissues for decades, and new viruses with unknown tumorigenic potential have been discovered. The presence of herpesvirus, polyomavirus, parvovirus,…

3D Exoscopes in Experimental Microanastomosis: A Comparison of Different Systems Open

Ahmad Hafez, Roel Haeren, Justiina Huhtakangas, Ville Nurminen, Mika Niemelä , et al. · 2023

Background: In recent years, three-dimensional exoscopes have been increasingly applied in neurosurgery. Multiple exoscopic systems are available, all offering specific features. In this study, we assessed practical and visualization perfo…

Small amount of alcohol did not deteriorate microsurgical dexterity: a prospective laboratory study Open

Ville Vasankari, Christian Eisenring, Tobias Rossmann, Michael Veldeman, Ville Nurminen , et al. · 2023

Outcomes and Complications for Treated and Untreated Low-Grade Intracranial Dural Arteriovenous Fistulas Open

Tobias Rossmann, Michael Veldeman, Elias Oulasvirta, Ville Nurminen, Jussi Numminen , et al. · 2023

How I do it—Helsinki style mini-pterional craniotomy for clipping of middle cerebral artery bifurcation aneurysms Open

Michael Veldeman, Tobias Rossmann, Mika Niemelä, Martin Lehečka · 2022

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

Michael Veldeman, Tobias Rossmann, Miikka Korja, Aki Laakso, Martin Lehečka , et al. · 2022

Brainstem intraparenchymal schwannoma: A case report and literature review Open

Anselmi Kovalainen, Roel Haeren, Anders Paetau, Martin Lehečka · 2021

Background: Intracranial intraparenchymal schwannomas (IS) are rare tumors that have mainly been described in case reports. Here, we report on a case of a brainstem IS and included a comprehensive literature review. Case Description: A 74-…

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

Sajjad Muhammad, Shafqat Rasul Chaudhry, Ulf D. Kahlert, Martin Lehečka, Miikka Korja , et al. · 2020

Aneurysmal subarachnoid hemorrhage (aSAH) is a complex and potentially deadly disease. Neurosurgical clipping or endovascular coiling can successfully obliterate ruptured aneurysms in almost every case. However, despite successful interven…

Microsurgical removal of a misplaced intraspinal venous stent in a patient with inferior vena cava atresia Open

Christoph Schwartz, Ahmad Hafez, Kimmo Lönnrot, Behnam Rezai Jahromi, Kimmo Lappalainen , et al. · 2020

Inferior vena cava atresia (IVCA) is a rare vascular condition that may be treated by venous stenting. The authors report on the microsurgical removal of an intraspinally misplaced stent causing nerve root compression and neurological defi…

Meditation music improved the quality of suturing in an experimental bypass procedure Open

Sajjad Muhammad, Martin Lehečka, Justiina Huhtakangas, Behnam Rezai Jahromi, Mika Niemelä , et al. · 2019

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