Neurosurgery Blog

Icon

Daily bibliographic review of the Neurosurgery Department. La Fe University Hospital. Valencia, Spain

Bypass surgery for complex middle cerebral artery aneurysms: an algorithmic approach to revascularization

J Neurosurg 127:463–479, 2017

Management of complex aneurysms of the middle cerebral artery (MCA) can be challenging. Lesions not amenable to endovascular techniques or direct clipping might require a bypass procedure with aneurysm obliteration. Various bypass techniques are available, but an algorithmic approach to classifying these lesions and determining the optimal bypass strategy has not been developed. The objective of this study was to propose a comprehensive and flexible algorithm based on MCA aneurysm location for selecting the best of multiple bypass options.

METHODS Aneurysms of the MCA that required bypass as part of treatment were identified from a large prospectively maintained database of vascular neurosurgeries. According to its location relative to the bifurcation, each aneurysm was classified as a prebifurcation, bifurcation, or postbifurcation aneurysm.

RESULTS Between 1998 and 2015, 30 patients were treated for 30 complex MCA aneurysms in 8 (27%) prebifurcation, 5 (17%) bifurcation, and 17 (56%) postbifurcation locations. Bypasses included 8 superficial temporal artery–MCA bypasses, 4 high-flow extracranial-to-intracranial (EC-IC) bypasses, 13 IC-IC bypasses (6 reanastomoses, 3 reimplantations, 3 interpositional grafts, and 1 in situ bypass), and 5 combination bypasses. The bypass strategy for prebifurcation aneurysms was determined by the involvement of lenticulostriate arteries, whereas the bypass strategy for bifurcation aneurysms was determined by rupture status. The location of the MCA aneurysm in the candelabra (Sylvian, insular, or opercular) determined the bypass strategy for postbifurcation aneurysms. No deaths that resulted from surgery were found, bypass patency was 90%, and the condition of 90% of the patients was improved or unchanged at the most recent follow-up.

CONCLUSIONS The bypass strategy used for an MCA aneurysm depends on the aneurysm location, lenticulostriate anatomy, and rupture status. A uniform bypass strategy for all MCA aneurysms does not exist, but the algorithm proposed here might guide selection of the optimal EC-IC or IC-IC bypass technique.

Category: Vascular

Tagged: , , , , , ,

Comments are closed.

The Safety and Feasibility of Image-Guided BrainPath-Mediated Trans-Sulcal Hematoma Evacuation

Haptic Virtual Reality Aneurysm Clipping

Subtemporal Approach for AICA Aneurysm Clipping

MCA Aneurysm Anatomical Classification Scheme

Blister Aneurysms of the Internal Carotid Artery

Bypass for Complex Basilar Aneurysms

Basilar Invagination and Atlanto-Axial Dislocation Video 1

Indocyanine Green Videoangiography “In Negative” Video 2

Indocyanine Green Videoangiography “In Negative” Video 1

Management of a Recurrent Coiled Giant Posterior Cerebral Artery Aneurysm

Bypass for Complex Basilar Aneurysms

Expanded Endonasal Approach for 2012 MERC

Endoscopic Endonasal Middle Clinoidectomy Video 1

Endoscopic Endonasal Middle Clinoidectomy Video 2

Neurosurgery CNS: Flash Fluorescence for MCA Bypass Video 2

Neurosurgery CNS: Flash Fluorescence for MCA Bypass Video 1

Neurosurgery CNS: Endoscopic Transventricular Lamina Terminalis Fenestration Video 2

Neurosurgery CNS: Endoscopic Transventricular Lamina Terminalis Fenestration Video 1

Neurosurgery CNS: Surgery for Giant PCOM Aneurysms Video 2

Neurosurgery CNS: Surgery for Giant PCOM Aneurysms Video 1

NeurosurgeryCNS: Endovascular-Surgical Approach to Cavernous dAVF

Neurosurgery CNS: Lateral Supraorbital Approach Applied to Anterior Clinoidal Meningiomas Video 4

Neurosurgery CNS: Lateral Supraorbital Approach Applied to Anterior Clinoidal Meningiomas Video 3

Neurosurgery CNS: Lateral Supraorbital Approach Applied to Anterior Clinoidal Meningiomas Video 2

Neurosurgery CNS: Lateral Supraorbital Approach Applied to Anterior Clinoidal Meningiomas Video 1

NeurosurgeryCNS: Surgery of AVMs in Motor Areas

NeurosurgeryCNS: The Fenestrated Yaşargil T-Bar Clip

NeurosurgeryCNS: Cotton-Clipping Technique to Repair Intraoperative Aneurysm Neck Tear Video 3

NeurosurgeryCNS: Cotton-Clipping Technique to Repair Intraoperative Aneurysm Neck Tear Video 2

NeurosurgeryCNS: Cotton-Clipping Technique to Repair Intraoperative Aneurysm Neck Tear Video 1

NeurosurgeryCNS. ‘Double-Stick Tape’ Technique for Offending Vessel Transposition in Microvascular Decompression

NeurosurgeryCNS: Advances in the Treatment and Outcome of Brain Stem Cavernous Malformation Surgery: 300 Patients

3T MRI Integrated Neuro Suite

NeurosurgeryCNS: 3D In Vivo Modeling of Vestibular Schwannomas and Surrounding Cranial Nerves Using DIT

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 7

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 6

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 5

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 4

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 3

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 2

NeurosurgeryCNS: Microsurgery for Previously Coiled Aneurysms: Experience on 81 Patients: Video 1

NeurosurgeryCNS: Corticotomy Closure Avoids Subdural Collections After Hemispherotomy

NeurosurgeryCNS: Operative Nuances of Side-to-Side in Situ PICA-PICA Bypass Procedure

NeurosurgeryCNS. Waterjet Dissection in Neurosurgery: An Update After 208 Procedures: Video 3

NeurosurgeryCNS. Waterjet Dissection in Neurosurgery: An Update After 208 Procedures: Video 2

NeurosurgeryCNS. Waterjet Dissection in Neurosurgery: An Update After 208 Procedures: Video 1

NeurosurgeryCNS: Fusiform Aneurysms of the Anterior Communicating Artery

NeurosurgeryCNS. Initial Clinical Experience with a High Definition Exoscope System for Microneurosurgery

NeurosurgeryCNS: Endoscopic Treatment of Arachnoid Cysts Video 2

NeurosurgeryCNS: Endoscopic Treatment of Arachnoid Cysts Video 1

NeurosurgeryCNS: Typical colloid cyst at the foramen of Monro.

NeurosurgeryCNS: Neuronavigation for Neuroendoscopic Surgery

NeurosurgeryCNS:New Aneurysm Clip System for Particularly Complex Aneurysm Surgery

NeurosurgeryCNS: AICA/PICA Anatomical Variants Penetrating the Subarcuate Fossa Dura

Craniopharyngioma Supra-Orbital Removal

NeurosurgeryCNS: Use of Flexible Hollow-Core CO2 Laser in Microsurgical Resection of CNS Lesions

NeurosurgeryCNS: Ulnar Nerve Decompression

NeurosurgeryCNS: Microvascular decompression for hemifacial spasm

NeurosurgeryCNS: ICG Videoangiography

NeurosurgeryCNS: Inappropiate aneurysm clip applications


32,732
Unique
Visitors
Powered By Google Analytics

Total views

  • 0
%d bloggers like this: