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Neurovascular Surgical Techniques
Pascal M Jabbour
1:
Basic Arterial Anatomy of the Brain
INTRODUCTION
SUPRATENTORIAL ARTERIAL ANATOMY
Internal Carotid Artery
Middle Cerebral Artery
Anterior Cerebral Artery
Posterior Cerebral Artery
INFRATENTORIAL ARTERIAL ANATOMY
Vertebral Artery
Posterior Inferior Cerebellar Artery
PICA Presents the Following Segments
Branches from Posterior Inferior Cerebellar Artery
Perforating Arteries
Choroidal Arteries
Cortical Arteries
Basilar Artery
Anterior Inferior Cerebellar Artery
Branches of the Anterior Inferior Cerebellar Artery
Superior Cerebellar Artery
2:
Basic Venous Anatomy of the Brain
INTRODUCTION
VENOUS CATEGORIES
Emissary Veins
Diploic Veins
Meningeal Veins
Dural Sinuses
CEREBRAL DIVISIONS
Superficial Venous Systems
Cortical and Anastomotic Veins
SUPRATENTORIAL SINUSES
Superior Sagittal Sinus
Inferior Sagittal Sinus
Straight Sinus
Sphenoparietal Sinus
Other Sinuses
Cavernous Sinus
Superior Petrosal Sinus
Deep Venous System
Ventricular Group
Cisternal Group
POSTERIOR FOSSA AND SINUSES
Sinuses
Transverse Sinus and Tentorial Sinus
Occipital Sinus and Marginal Sinus
Sigmoid Sinus
Jugular Bulb
Posterior Fossa Veins
Superficial Veins
Deep Veins and Veins of the Brainstem
Bridging Veins
ANGIOGRAMS
CONCLUSION
3:
A Review of Microsurgical Instruments
INTRODUCTION
OPERATING MICROSCOPE
Operating Microscope Chair
MECHANICS OF SURGICAL MICROINSTRUMENTS
Bayonetted Forceps
Microscissors
MONOPOLAR AND BIPOLAR ELECTROCAUTERY
SUCTION
NEEDLE DRIVERS AND SUTURING MATERIAL
DISSECTORS
VASCULAR CLIPS AND CLIP APPLIERS
CONCLUSION
4:
A Review of Endovascular Tools
HISTORY OF ENDOVASCULAR TREATMENTS
LIQUID EMBOLIC AGENTS
Ethylene-Vinyl Alcohol Copolymer
Cyanoacrylates
Ethyl Alcohol
Particulate Embolic Agents
Polyvinyl Alcohol and Embospheres
Catheter Selection
Preparation
Disadvantages
Detachable Balloons
Detachable Coils
Sizes
Shapes
Stiffness
Detachment Mechanism
Durability
Polyglycolic Polylactic Coils
Hydrocoil
Pushable or Injectable Coils
Pushable Coils
Stents
Balloon Expandable Stents
Small (2.5–4.0 mm) Stents
Drug Eluting Stents
Self-Expanding Stents
Large Self-Expanding Stents
Small Self-Expanding Stents
Enterprise
Wingspan
Solitaire
Covered Stent Grafts
Flow Diverters
Pipeline Embolization Device
Balloon Assisted Aneurysm Coiling
Nondetachable Hypercompliant Balloons
Embolic Protection and Retrieval Devices
Embolic Protection Devices
Filter Wires
Distal Occlusion
Proximal Occlusion
Retrieval Devices
Gooseneck Snare
Alligator Retrieval Device
Baskets
Acute Stroke Intervention
Mechanical Thrombectomy
MERCI Retrieval Device
Penumbra
Stent Assisted Revascularization
Closure Devices
5:
Imaging Advances in Neurovascular Disease
INTRODUCTION
ACUTE ARTERIAL INFARCTION
CERVICAL CAROTID STENOSIS
Carotid Dissection
Post Stent Follow-up
EVALUATION OF SUBARACHNOID HEMORRHAGE
Aneurysm Detection
Post-Treatment Evaluation: Coils, Clips and Stents
Perimesencephalic Subarachnoid Hemorrhage
Post-Subarachnoid Hemorrhage Vasospasm
Intracerebral Hemorrhage
ARTERIOVENOUS MALFORMATION AND DURAL ARTERIOVENOUS FISTULA
Dural Venous Sinus Thrombosis
Spinal Cord Arteriovenous Lesions
6:
Microsurgical and Endovascular Treatment of Anterior Circulation Aneurysms
NATURAL HISTORY, ANATOMY AND LITERATURE REGARDING ANTERIOR CIRCULATION ANEURYSMS
COMMON THEME—ENDOVASCULAR OCCLUSION OF ANTERIOR CIRCULATION ANEURYSMS
COMMON THEME—MICROSURGERY OF ANTERIOR CIRCULATION ANEURYSMS
Operative Procedure
Follow-Up
PARACLINOID AND OPHTHALMIC ARTERY ANEURYSMS
Treatment
Endovascular
Key-Points
Microsurgery
Key Points
POSTERIOR COMMUNICATING ARTERY ANEURYSMS
Treatment
Endovascular
Key Points
Microsurgery
ANTERIOR CHOROIDAL ARTERY ANEURYSMS
Treatment
Endovascular
Key Points
Microsurgery
Key Points
INTERNAL CAROTID ARTERY TERMINUS ANEURYSMS
Treatment
Endovascular
Key Point
Microsurgery
Key Points
MIDDLE CEREBRAL ARTERY ANEURYSMS
Treatment
Endovascular
Key Points
Microsurgical
Key Points
PROXIMAL ANTERIOR CEREBRAL ARTERY, ANTERIOR COMMUNICATING ARTERY AND DISTAL ANTERIOR CEREBRAL ARTERY ANEURYSMS
Treatment
Endovascular
Key Points
Microsurgery
7:
Microsurgical and Endovascular Treatment of Posterior Circulation Aneurysms
INTRODUCTION
OPEN SURGICAL MANAGEMENT
Surgical Management of the Upper Third: Basilar Apex/Posterior Cerebral Artery/Superior Cerebellar Artery Aneurysms
Anatomy
Basilar Apex, Posterior Cerebral Artery and Superior Cerebellar Artery Aneurysms
Surgical Approaches to Upper-Third Aneurysms
Subtemporal
Pterional
Orbitozygomatic
Combined Approaches and Additional Exposure
Surgical Management of the Middle Third: Anterior Inferior Cerebellar Artery and Mid-Basilar Trunk Aneurysms
Anatomy
Anterior Inferior Cerebellar Artery and Basilar Trunk Aneurysms
Surgical Approaches to Middle-Third Aneurysms
Surgical Management of the Lower Third: Posterior Inferior Cerebellar Artery/Vertebral Artery/Vertebrobasilar Junction Aneurysms
Vertebral Artery and Posterior Inferior Cerebellar Artery Anatomy
Posterior Inferior Cerebellar Artery, Vertebral Artery, and Vertebrobasilar Junction Aneurysms
Surgical Approaches to Lower-Third Aneurysms
Midline Suboccipital Approach
ANCILLARY TECHNIQUES
Bypass
Hypothermic Circulatory Arrest
Opening the Aneurysm
MICROSURGICAL VERSUS ENDOVASCULAR MANAGEMENT
Endovascular Management
Anatomical Challenges
Overview of Endovascular Options
Endovascular Approaches to Basilar Apex Aneurysms
Waffle-Cone Technique
Flow Diversion—Pipeline Embolization Device122
POSTERIOR CEREBRAL ARTERY ANEURYSMS
SUPERIOR CEREBELLAR ARTERY ANEURYSMS
ANTERIOR INFERIOR CEREBELLAR ARTERY ANEURYSMS
POSTERIOR INFERIOR CEREBELLAR ARTERY ANEURYSMS
VERTEBROBASILAR ANEURYSMS
CONCLUSION
8:
Microsurgical and Endovascular Treatment of Intracranial Giant Aneurysms
INTRODUCTION
EPIDEMIOLOGY AND NATURAL HISTORY
PATHOPHYSIOLOGY
Saccular Aneurysms
Fusiform Aneurysms
Serpentine Aneurysms
CLINICAL FINDINGS
IMAGING STUDIES
Balloon Test Occlusion
MANAGEMENT
Open Microsurgical Treatment
Proximal Ligation
Microsurgical Clipping
Aneurysmectomy
Surgical Approaches
ANTERIOR CIRCULATION GIANT ANEURYSMS
Posterior Circulation Approaches
Hypothermic Arrest
Revascularization
ENDOVASCULAR MANAGEMENT OF INTRACRANIAL ANEURYSMS
Endovascular Parent Artery Occlusion
Use of Liquid Embolic System (LES) for Treatment of Large/Giant Aneurysms
Flow Divertors for Treatment of Large and Giant Aneurysm
FOLLOW-UP OF GIANT ANEURYSMS AFTER TREATMENT
CONCLUSION
ACKNOWLEDGMENT
9:
Liquid Embolic Agents in the Treatment of Intracranial Aneurysms
INTRODUCTION
ONYX LIQUID EMBOLIC AGENT
OTHER LIQUID EMBOLIC AGENTS
PATIENT SELECTION
EMBOLIZATION TECHNIQUE
Postoperative Care
Case Illustrations
Case 1
Case 2
Case 3
Case 4
DISCUSSION
Advantages
Disadvantages
CONCLUSION
10:
Biomechanics of Cerebral Aneurysms
THE ROLE OF HEMODYNAMICS ON CEREBRAL ANEURYSM FORMATION, DEVELOPMENT, RUPTURE AND TREATMENT
Hemodynamic Factors
Aneurysmal Inflow
Intra-aneurysmal Pressure
Wall Shear Stress
Other Hemodynamic Metrics and Descriptors
TECHNIQUES FOR EVALUATING AND MEASURING ANEURYSM HEMODYNAMICS
In Vivo Techniques
Human In Vivo Techniques
Animal Models
In vitro Techniques
Computational (in-silico) Techniques
FACTORS THAT INFLUENCE CEREBRAL ANEURYSM HEMODYNAMICS
Aneurysm Geometric Features
Aneurysm Size Indices
Aneurysm Type: Sidewall and Bifurcating Aneurysms
Parent Vessel Geometry
ENDOVASCULAR TREATMENT OF CEREBRAL ANEURYSMS
Embolic Coils
Endovascular Stents
Flow Disturbances Induced by Stents
Effects of Different Stent Deployment Techniques on Aneurysmal Inflow
Effects of Low Porosity Stents on Aneurysm Hemodynamics
11:
Flow Diversion: New Paradigm for Cerebral Aneurysms
INTRODUCTION
PRELIMINARY EXPERIENCE WITH LOW POROSITY STENTS
FLOW DIVERSION BIOLOGY
Stent Design
Occlusion Rate with Flow Diverters
Pipeline
Silk
Complications
Technical Nuances
CONCLUSION
12:
Microsurgical and Endovascular Treatment of Brain Arteriovenous Malformations
INTRODUCTION
NATURAL HISTORY AND PRESENTATION
PATIENT FACTORS
PREOPERATIVE IMAGING
ARTERIOVENOUS MALFORMATION GRADING
NEUROANESTHESIA CONSIDERATIONS
POSITIONING AND CRANIOTOMY
SURGICAL TECHNIQUE
POSTOPERATIVE MANAGEMENT
SUPRATENTORIAL ARTERIOVENOUS MALFORMATIONS AND SURGICAL APPROACHES
INFRATENTORIAL ARTERIOVENOUS MALFORMATIONS AND SURGICAL APPROACHES
CONCLUSION
INTRODUCTION
TREATMENT STRATEGIES
Preoperative Evaluation
Anesthesia
Neurophysiological Monitoring
Anticoagulation Therapy
Angiographic Analysis of Arteriovenous Malformations
Embolization Strategy
Embolization before Resection
Embolization before Radiosurgery
High-Risk Features
Palliation
Curative Embolization
Selection of Arterial Pedicle
Liquid Embolic Administration
Dual-Catheter Technique
Staged Embolization
POSTEMBOLIZATION MANAGEMENT
TIME TO RESECTION
COMPLICATIONS
Ischemia and Infarction
Hemorrhage
Access-Related Complications
CONCLUSION
13:
Intracranial Occlusive Disease
INTRODUCTION
HISTORY
Atherosclerosis–Surgery
Atherosclerosis–Endovascular
CEREBRAL REVASCULARIZATION IN MOYAMOYA DISEASE
Direct Revascularization
Indirect Revascularization
Encephalomyosynangiosis
Encephaloarteriosynangiosis
Encephaloduroarteriosynangiosis
Encephaloduroarteriomyosynangiosis
Multiple Burr Holes
Omental Transposition or Transplantation
Endovascular Revascularization
Approach to the Patient with Moyamoya Disease
CONCLUSION
14:
Extracranial Atherosclerosis
INTRODUCTION
SURGICAL TECHNIQUE
Anesthesia
Positioning
Exposure
Endarterectomy
Closure
Complications
CONCLUSION
VERTEBRAL ARTERY DISEASE
Diagnosis of Vertebral Artery Stenosis
Vertebral Artery Anatomy
Surgical Treatments
Anesthetic and General Surgical Management
Surgical Technique for Proximal (V1) Disease: Vertebral Ostial Stenosis
Transposition
Bypass
Surgical Techniques for Distal (V2, V3) Extracranial Vertebral Atherosclerosis57–61
V3 Reconstruction
V2 Reconstruction
CONCLUSION
15:
Acute Stroke Interventions
BACKGROUND
CONCLUSION
CONCLUSION
ABBREVIATIONS
16:
Carotid-Cavernous Fistulas
INTRODUCTION
HISTORICAL OVERVIEW
PATHOPHYSIOLOGY AND CLINICAL FEATURES
Carotid-Cavernous Fistula Symptoms and Related Cavernous Sinus Anatomy
Cavernous Sinus Structures
Cavernous Sinus Venous Connections
Carotid-Cavernous Fistula Classification and Clinical Features
Direct Versus Indirect Fistulas
Direct Carotid-Cavernous Fistulas
Indirect Carotid-Cavernous Fistulas
Internal Carotid Artery Versus External Carotid Artery Supply
Venous Drainage
Diagnosis and Imaging
Computed Tomography and Magnetic Resonance Imaging
Angiographic Considerations
TREATMENT
RELEVANT VASCULAR ANATOMY
Cavernous Internal Carotid Artery
External Carotid Artery Supply
Surrounding Venous Space
CONCLUSION
ACKNOWLEDGMENT
17:
Cranial Arteriovenous Fistulae: Classifications, Endovascular and Surgical Techniques
INTRODUCTION
CLASSIFICATIONS OF CRANIAL DURAL ARTERIOVENOUS FISTULAE
TREATMENT OPTIONS
ENDOVASCULAR TECHNIQUES
Illustrative Cases of Different Endovascular Approaches
Transarterial Endovascular Embolization Using Glue (n-BCA)
Endovascular Embolization Using Liquid Polymer (Onyx)
Internal Jugular Vein/Sigmoid Sinus Sacrifice
Combined Transarterial Coiling and Onyx Embolization
Transvenous Embolization
SURGICAL TECHNIQUES
Illustrative Case: Surgical Disconnection of the Draining Vein
COMBINED SURGICAL AND ENDOVASCULAR TECHNIQUES
Illustrative Case: Combined Endovascular and Surgical Approach for Sinus Sacrifice
STEREOTACTIC RADIOSURGERY TECHNIQUES
18:
Traumatic Vascular Injuries
INTRODUCTION
TRAUMATIC CEREBROVASCULAR INJURY: DEFINITION AND NATURAL HISTORY
Traumatic Aneurysms and Arteriovenous Fistula
Traumatic Vasospasm
TRAUMATIC ANEURYSMS AND ARTERIOVENOUS FISTULA
TRAUMATIC VASOSPASM
Case 1
Case 2
19:
Spinal Arteriovenous Malformations
INTRODUCTION
CLASSIFICATION
Type I: Dural Arteriovenous Fistula
Epidemiology
Anatomy
Character
Symptoms
Diagnostic Pearl
Type II: Glomus Arteriovenous Malformation
Epidemiology
Anatomy
Character
Symptoms
Diagnostic Pearl
Type III: Juvenile Arteriovenous Malformation (Metameric Vascular Malformation)
Epidemiology
Anatomy
Character
Symptoms
Diagnostic Pearl
Type IV: Intradural/Perimedullary Arteriovenous Fistula
Epidemiology
Anatomy
Character
Symptoms
Foix-Alajouanine Syndrome
Newer Classifications
DIAGNOSTIC IMAGING
Magnetic Resonance Imaging
Conventional Spinal Digital Subtraction Angiography
Myelography
MANAGEMENT THERAPY
Type I: Dural Arteriovenous Fistula—Surgical Intervention either Microsurgical or Endovascular or Combined
Type II: Spinal Glomus Arteriovenous Malformation—Usually Amenable to Endovascular Treatment. Initial Embolization with Particulate Matter and if Recanalization Occur may surgically Resect the Lesion
Type III: Juvenile Spinal Arteriovenous Malformation—Only Palliative Treatment
Type IV: Perimedullary Arteriovenous Fistula—The Treatment Options are Dictated by the Location of and the Subtype of the Lesion4
Endovascular Agent for Arteriovenous Malformation—Liquid versus Particle
20:
Future Endovascular Technical Advances
INTRODUCTION
STROKE
CAROTID ARTERY STENTING
INTRACRANIAL ATHEROSCLEROSIS
ANEURYSMS
Flow-Diverting Stents
Glues
TUMORS
Embolization
Chemotherapeutics
NEUROLOGICAL DISORDERS
Multiple Sclerosis
Amyotrophic Lateral Sclerosis
Parkinson's Disease
NEUROINTERVENTIONAL TRAINING: SIMULATORS/ROBOTICS/IMAGING
Medical Simulation
Robotics
Imaging
CONCLUSION
21:
Future Microsurgical Technical Advances
REFLECTING ON HISTORY AND DIVINING THE FUTURE
IMAGING, IMAGE GUIDANCE AND IMAGE FUSION TO GUIDE MICROSURGERY
MINIMALLY INVASIVE AND ENDOSCOPICALLY ASSISTED NEUROSURGERY
ROBOTICS IN NEUROSURGERY
MICROINSTRUMENT DESIGN, ERGONOMICS AND THE OPERATING ROOM OF THE FUTURE
PROCEDURES THAT WILL DIE, THOSE THAT WILL HAVE ANOTHER LIFE AND NOVEL MICROSURGICAL TASKS FOR THE FUTURE
TRAINING CHALLENGES AND TEAM ASSEMBLY FOR FUTURE MICROSURGERY ADVANCES
22:
Getting out of Trouble and Complication Avoidance in the Endovascular Techniques
INTRODUCTION
GENERAL GUIDELINES FOR COMPLICATION AVOIDANCE
SELECTING THE ENDOVASCULAR PATIENT: RISK FACTORS AND PERIPROCEDURAL CARE
RECOGNIZED PATIENT-RELATED RISK FACTORS
Patient Age
Hydration and Renal Status
Cardiovascular Risk Factors
Transient Ischemic Attacks and Ongoing Ischemic Strokes
Type of the Lesion Studied
PROCEDURAL RISK FACTORS
Volume of Injected Contrast Material
Procedural and Fluoroscopy Times
Intraprocedural Catheter Exchange
Operator Experience
ENDOVASCULAR PROCEDURAL COMPLICATIONS
Complications Common to All Interventional Procedures
Arterial Access Site
Embolic Complications
Vascular Dissections
Intervention-Specific Complications
Intracranial Aneurysm Coiling
Carotid Artery Angioplasty and Stenting
Arteriovenous Malformation Embolization
Endovascular Treatment of Stroke
CONCLUSIONS: PEARLS FOR OPTIMAL PREPROCEDURAL PLANNING AND COMPLICATION AVOIDANCE
23:
Getting out of Trouble and Complication Avoidance in Microsurgery
INTRODUCTION
THREE-DIMENSIONAL NEUROSURGICAL ANATOMY
RESIDENCY AND FELLOWSHIP TRAINING
INTRAOPERATIVE JUDGMENT
CEREBRAL ANEURYSMS
CEREBRAL ARTERIOVENOUS MALFORMATIONS
INTRA-AXIAL TUMORS
SKULL BASE TUMORS
24:
Cavernous Malformation Surgery: Pearls and Pitfalls
INTRODUCTION
SUPRATENTORIAL SUPERFICIAL
SUPRATENTORIAL DEEP
BASAL GANGLIA
THALAMUS AND PINEAL REGION
CORPUS CALLOSUM, CINGULATE CORTEX AND VENTRICULAR SYSTEM
INSULAR CORTEX
INFRATENTORIAL
CEREBELLUM AND CEREBELLAR PEDUNCLES
Brainstem: Intraoperative Images/Magnetic Resonance Imaging
Cranial Nerves
Spinal Cord
25:
The Use of Intraoperative Cerebral Blood Flow Measurements in Neurosurgery: Past, Present, and Future
INTRODUCTION
TECHNIQUES FOR INTRAOPERATIVE QUANTIFICATION OF CEREBRAL BLOOD FLOW: THEORY, ADVANTAGES AND LIMITATIONS
RADIONUCLIDE CLEARANCE
Thermal Diffusion Flowmetry
Laser Doppler Flowmetry
Electromagnetic Flowmetry
Doppler Sonography
Ultrasonic Transit Time Flowmetry
PRESENT INTRAOPERATIVE APPLICATIONS: FLOW ASSISTED CEREBROVASCULAR SURGERY
Intraoperative Use for Primary Aneurysm Occlusion
Case Illustration
Intraoperative Use for Vessel Sacrifice and Cerebral Bypass
CONCLUSION
INDEX
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