Neuroanesthesia Flashcards
Dan Hladky, CAA
Normal ICP and Brain Volumes

Cerebral Physiology

Cerebral Perfusion Pressure

Cerebral Blood Flow

Perfusion to Ischemic and Non-ischemic Regions of the Brain


Carbon Dioxide and Oxygen

Cerebral Metabolism (CMRO2)


Cerebral Metabolism (CMRO2) Metabolic Mediators

What increases/decreases Cerebral Metabolism?

Temperature

Cerebral Metabolism

Relationship between CBF and PaC02

Relationship Between CBF and Pa02


Autoregulation


Limits of Autoregulation

Impairment of Autoregulation

Radius of Cerebral Blood Vessels


Radius of Cerebral Blood Vessels - Autonomic Nervous System

Idiopathic Intracranial Hypertension (IIH)

Signs and Symptoms of Increased ICP


Papilledema

Grade 4 has definite increased ICP
Consequences of Raised ICP

Symptoms Related to Increased ICP and Papilledema

Lowering ICP
First tier treatment


Lowering ICP Supratentorial Intracranial Tumors
First tier treatment


Lowering ICP
Second tier treatment


Clinical Advantage of Propofol Compared with Barbiturate for the Coma Therapy in the Patients with Severe Traumatic Brain Injury


Drug choices
IDEAL NEUROANESTHETIC AGENTS


Drug choices

IV Anesthetics


Ketamine

Propofol

Inhalation Agents

Intracranial Tumors


Tumor Grades

Astrocytoma

Meningioma

Oligodendroglioma

Types of Primary Brain Tumors
Children


Pathophysiologic Considerations

Lacunar Skull
“Beaten Silver” Skull Sign

CT-Edema

Fluid and Electrolyte Balance

Management of Fluid and Electrolyte Balance

http://medind.nic.in/icf/t05/i1/icft05i1p1.pdf (Fluid and Electrolyte Balance IV Fluids in Head Injury)

Intracranial Aneurysm Rupture

Fluid and Electrolyte Balance
Cerebral Tumor


Implications of Surgical Position

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2899644/ (The use of the three-pronged Mayfield head clamp resulting in an intracranial epidural hematoma in an adult patient)

Anesthetic Management


Anesthetic Technique


Intraoperative ICP Reduction


Ventriculostomy Drain

Emergence Goals

Emergence from Anesthesia


Rapid Loss of Brain Function

Acute Ischemic Stroke

Acute Hemorrhagic Stroke


HHH


Intracranial Aneurysm

Preop

Intracranial Aneurysm Anesthetic Management

Monitors and Induction

Intracranial Aneurysm Anesthetic Management

Maintenance

Aneurysm Clipping Goals

Intracranial Aneurysm Anesthetic Management
Fluids

Intracranial Aneurysm Anesthetic Management
Emergence

Venous Air Embolism (VAE)


Venous Air Embolism (VAE)

Treatment

Neurological Disorders and Diseases
Depression

Acute Spine Injury

Spinal Shock


Acute Spine Injury

Acute C-spine Injuries

Poikilothermia

Preop Evaluation
Chronic Spine Injury


Spinal Surgery


Scoliosis Surgery

Airway Control


Manual In-line Stabilization (MILS)


Nasotracheal intubation

Awake Nasal Fiberoptic Intubation

Evaluation of the GlideScope for tracheal intubation in patients with cervical spine immobilization by a semi-rigid collar.

Autonomic Hyperreflexia


Flexed Prone Position


Eye Injuries

Postoperative Vision Loss-
Risk Factors

Ischemic Optic Neuropathy

Injuries: Vocal Cord
