The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study

Background: Surgical treatment of middle cerebral artery (MCA) giant aneurysms is a challenging task. The information on its current principles is rather limited, with the publications based on isolated case reports and small series. Aim: To identify the types of procedures and evaluate the resul...

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Main Authors: Yuri V. Pilipenko, Shalva S. Eliava, Anton N. Konovalov, Fyodor V. Grebenev, Boris V. Barchunov
Format: Article
Language:Russian
Published: MONIKI 2023-05-01
Series:Alʹmanah Kliničeskoj Mediciny
Subjects:
Online Access:https://almclinmed.ru/jour/article/viewFile/1722/1550
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author Yuri V. Pilipenko
Shalva S. Eliava
Anton N. Konovalov
Fyodor V. Grebenev
Boris V. Barchunov
author_facet Yuri V. Pilipenko
Shalva S. Eliava
Anton N. Konovalov
Fyodor V. Grebenev
Boris V. Barchunov
author_sort Yuri V. Pilipenko
collection DOAJ
description Background: Surgical treatment of middle cerebral artery (MCA) giant aneurysms is a challenging task. The information on its current principles is rather limited, with the publications based on isolated case reports and small series. Aim: To identify the types of procedures and evaluate the results of surgery in patients with giant MCA aneurysms. Materials and methods: We retrospectively analyzed the data on 55 patients who had undergone surgery for MCA giant aneurysms in the Burdenko Neurosurgery Center from 2010 to 2021. Thereafter 52 patients were followed up for 6 to 120 months (for 53.1 33.7 months on average). Results: The giant MCA aneurysms were located at the M1 segment bifurcation in 33 (60%) patients, within the M1 segment, in 11 (20%), M2 in 7 (12.7%), and M3 and M4 in 4 (7.3%) patients. There were 32 (58.2%) saccular and 23 (41.8%) fusiform aneurysms. Surgical interventions for MCA giant aneurysms included their neck clipping (50.9%, n = 28), clipping with formation of the arterial lumen (3.6%, n = 2), bypass procedures (34.5%, n = 19), wrapping (3.6%, n = 2), and endovascular procedures (7.3%, n = 4). Perioperative worsening of the neurologic status (The Modified Rankin Scale, mRS) was observed in 50.9% (n = 28) of the patients, and the death rate was 1.8% (n = 1). The complete closure of giant aneurysms was achieved in 78.2% (n = 43) of the cases. The long-term outcome was favorable in 76.9% of the patients (40 from 52 available for the follow up). Conclusion: Microsurgical clipping and bypass types of surgery were the most common surgical procedures for the treatment of MCA giant aneurysms. These procedures are technically complex and are associated with a relatively high number of complications. The main directions of future studies could be in the search for new and more precise diagnostic assessment of the collateral circulation in the cortical MCA branches, improvement of the algorithm for the bypass selection, as well as an investigation of the long-term results of endovascular and combined treatments. A thorough long-term postoperative patient follow-up and the possibility of high quality control angiography are of major importance.
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spelling doaj.art-700b544744fa4e1094dcd77f170ef01d2023-05-12T10:29:47ZrusMONIKIAlʹmanah Kliničeskoj Mediciny2072-05052587-92942023-05-01511324410.18786/2072-0505-2023-51-005923The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective studyYuri V. Pilipenko0https://orcid.org/0000-0003-4001-3212Shalva S. Eliava1https://orcid.org/0000-0001-6103-9329Anton N. Konovalov2https://orcid.org/0000-0002-0932-4752Fyodor V. Grebenev3https://orcid.org/0000-0003-2622-7804Boris V. Barchunov4National Medical Research Center for Neurosurgery named after Academician N.N. BurdenkoNational Medical Research Center for Neurosurgery named after Academician N.N. BurdenkoNational Medical Research Center for Neurosurgery named after Academician N.N. BurdenkoNational Medical Research Center for Neurosurgery named after Academician N.N. BurdenkoCenter for Physical Instrumentation of Prokhorov General Physics InstituteBackground: Surgical treatment of middle cerebral artery (MCA) giant aneurysms is a challenging task. The information on its current principles is rather limited, with the publications based on isolated case reports and small series. Aim: To identify the types of procedures and evaluate the results of surgery in patients with giant MCA aneurysms. Materials and methods: We retrospectively analyzed the data on 55 patients who had undergone surgery for MCA giant aneurysms in the Burdenko Neurosurgery Center from 2010 to 2021. Thereafter 52 patients were followed up for 6 to 120 months (for 53.1 33.7 months on average). Results: The giant MCA aneurysms were located at the M1 segment bifurcation in 33 (60%) patients, within the M1 segment, in 11 (20%), M2 in 7 (12.7%), and M3 and M4 in 4 (7.3%) patients. There were 32 (58.2%) saccular and 23 (41.8%) fusiform aneurysms. Surgical interventions for MCA giant aneurysms included their neck clipping (50.9%, n = 28), clipping with formation of the arterial lumen (3.6%, n = 2), bypass procedures (34.5%, n = 19), wrapping (3.6%, n = 2), and endovascular procedures (7.3%, n = 4). Perioperative worsening of the neurologic status (The Modified Rankin Scale, mRS) was observed in 50.9% (n = 28) of the patients, and the death rate was 1.8% (n = 1). The complete closure of giant aneurysms was achieved in 78.2% (n = 43) of the cases. The long-term outcome was favorable in 76.9% of the patients (40 from 52 available for the follow up). Conclusion: Microsurgical clipping and bypass types of surgery were the most common surgical procedures for the treatment of MCA giant aneurysms. These procedures are technically complex and are associated with a relatively high number of complications. The main directions of future studies could be in the search for new and more precise diagnostic assessment of the collateral circulation in the cortical MCA branches, improvement of the algorithm for the bypass selection, as well as an investigation of the long-term results of endovascular and combined treatments. A thorough long-term postoperative patient follow-up and the possibility of high quality control angiography are of major importance.https://almclinmed.ru/jour/article/viewFile/1722/1550bypassclippingcomplex aneurysmsgiant aneurysmmiddle cerebral artery aneurysmssurgical treatment
spellingShingle Yuri V. Pilipenko
Shalva S. Eliava
Anton N. Konovalov
Fyodor V. Grebenev
Boris V. Barchunov
The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
Alʹmanah Kliničeskoj Mediciny
bypass
clipping
complex aneurysms
giant aneurysm
middle cerebral artery aneurysms
surgical treatment
title The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
title_full The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
title_fullStr The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
title_full_unstemmed The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
title_short The results of surgery for giant aneurysms of the middle cerebral arteries: a retrospective study
title_sort results of surgery for giant aneurysms of the middle cerebral arteries a retrospective study
topic bypass
clipping
complex aneurysms
giant aneurysm
middle cerebral artery aneurysms
surgical treatment
url https://almclinmed.ru/jour/article/viewFile/1722/1550
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