Clinical Neuroanesthesia and Neurophysiological Monitoring

Lesson 1 • Cerebral Anatomy and Functional Regions

Maps lobar organization, cortical areas, and subcortical structures to anesthetic vulnerability. Establishes the anatomical baseline for all subsequent monitoring interpretation.

Lesson 2 • Spinal Cord Architecture

Covers gray and white matter organization, ascending and descending tracts, and vascular supply. Provides the structural basis for spinal cord monitoring strategies.

Lesson 3 • Brainstem and Cranial Nerve Anatomy

Details midbrain, pons, and medullary nuclei controlling vital functions. Connects brainstem anatomy to intraoperative monitoring of cranial nerve integrity.

Lesson 4 • Cerebrospinal Fluid Dynamics

Explains CSF production, circulation, and reabsorption within ventricular and subarachnoid spaces. Links CSF physiology to intracranial pressure management covered in Chapter 2.

Lesson 1 • Cerebral Metabolic Rate and Oxygen Delivery

Quantifies CMRO2, glucose utilization, and the relationship between metabolism and blood flow. Connects metabolic concepts to anesthetic depth monitoring strategies.

Lesson 2 • Intracranial Pressure Physiology

Applies the Monro-Kellie doctrine to explain ICP dynamics and compensatory mechanisms. Prepares students to recognize and treat elevated ICP in neurosurgical patients.

Lesson 3 • Cerebral Edema Mechanisms and Management

Distinguishes vasogenic, cytotoxic, and osmotic edema types and their pathophysiology. Bridges physiology to pharmacological and ventilatory interventions used clinically.

Lesson 4 • Blood-Brain Barrier Physiology

Details tight junction function, transport mechanisms, and conditions causing barrier disruption. Informs drug selection and fluid management decisions in neuroanesthesia.

Lesson 1 • Opioids and Adjuvant Analgesics

Assesses opioid effects on ICP, CBF, and evoked potential amplitudes. Integrates analgesic strategies compatible with intraoperative neurophysiological monitoring.

Lesson 2 • Vasoactive Drugs and Cerebral Hemodynamics

Analyzes vasopressors, vasodilators, and antihypertensives for their cerebrovascular effects. Enables precise hemodynamic management to maintain cerebral perfusion pressure targets.

Lesson 3 • Intravenous Anesthetic Agents

Evaluates propofol, ketamine, etomidate, and barbiturates for neurophysiological effects. Guides agent selection based on monitoring modality and surgical requirements.

Lesson 4 • Inhalational Agents and the Brain

Compares volatile anesthetic effects on CBF, CMRO2, and EEG activity. Establishes dose-dependent relationships critical for intraoperative monitoring interpretation.

Lesson 1 • Processed EEG and Depth-of-Anesthesia Monitors

Evaluates BIS, entropy, and spectral edge frequency as surrogate anesthetic depth indices. Clarifies limitations of processed indices in neurological patients.

Lesson 2 • Normal and Anesthetic EEG Patterns

Identifies alpha, beta, theta, and delta rhythms and their anesthetic correlates. Establishes the baseline for detecting pathological deviations during surgery.

Lesson 3 • Pathological EEG Patterns and Ischemia

Distinguishes ischemic slowing, seizure activity, and suppression from anesthetic effects. Trains rapid pattern recognition to trigger timely surgical or hemodynamic intervention.

Lesson 4 • EEG Troubleshooting and Artifact Management

Addresses electrocautery, 60-Hz, and movement artifacts and their systematic elimination. Ensures monitoring continuity during critical surgical phases.

Lesson 1 • Multimodal Evoked Potential Strategies

Integrates SSEP, MEP, and BAEP into procedure-specific monitoring protocols. Demonstrates how combined modalities reduce false-negative rates for neurological injury.

Lesson 2 • Motor Evoked Potentials

Details transcranial electrical stimulation, multipulse trains, and muscle recording for corticospinal tract monitoring. Addresses safety precautions and contraindications for MEP use.

Lesson 3 • Somatosensory Evoked Potentials

Covers SSEP stimulus parameters, recording sites, and waveform components for upper and lower extremities. Connects dorsal column integrity to amplitude and latency alarm criteria.

Lesson 4 • Brainstem Auditory Evoked Potentials

Explains click stimulus delivery, wave I through V generation, and posterior fossa surgical applications. Identifies BAEP changes indicating auditory nerve or brainstem compromise.

Lesson 1 • Continuous EMG Monitoring in Spine Surgery

Differentiates spontaneous EMG activity patterns indicating nerve root irritation from benign signals. Trains recognition of neurotonic discharges requiring surgical pause.

Lesson 2 • SSEP and MEP Protocol for Spine Cases

Defines baseline acquisition, anesthetic optimization, and alarm criteria specific to spine surgery. Integrates pharmacological constraints of MEP monitoring into anesthetic planning.

Lesson 3 • Pedicle Screw Stimulation Techniques

Explains triggered EMG thresholds for detecting pedicle wall breach and nerve root proximity. Guides real-time feedback to surgeons during instrumentation placement.

Lesson 4 • Spinal Cord Monitoring Rationale

Establishes the evidence base for monitoring in deformity, tumor, and vascular spine surgery. Frames monitoring as a team-based safety intervention rather than a passive recording activity.

Lesson 1 • Induction and Airway Management

Applies hemodynamically stable induction techniques to prevent ICP spikes and cerebral ischemia. Addresses difficult airway management in patients with elevated ICP or cervical instability.

Lesson 2 • Emergence and Postoperative Neurological Assessment

Manages smooth emergence to enable early neurological examination while preventing hypertension and coughing. Defines criteria for ICU admission versus fast-track recovery.

Lesson 3 • Brain Relaxation Techniques

Combines osmotherapy, hyperventilation, CSF drainage, and positioning to achieve surgical brain relaxation. Balances ICP reduction against risks of cerebral ischemia and edema rebound.

Lesson 4 • Preoperative Neurological Assessment

Structures the neuroanesthetic preoperative evaluation including ICP status, seizure history, and imaging review. Identifies risk factors guiding intraoperative monitoring and drug selection.

Lesson 1 • Multimodal Monitoring Integration and Decision-Making

Synthesizes EEG, evoked potentials, NIRS, TCD, and ICP data into unified clinical decisions. Develops systematic alert response frameworks applicable across neurosurgical subspecialties.

Lesson 2 • Cerebral Oximetry and Near-Infrared Spectroscopy

Explains NIRS principles, regional oxygen saturation interpretation, and intervention thresholds. Integrates cerebral oximetry with EEG and evoked potentials for comprehensive monitoring.

Lesson 3 • Pharmacological Neuroprotection Evidence

Critically evaluates clinical evidence for hypothermia, barbiturates, magnesium, and volatile agents as neuroprotectants. Distinguishes proven interventions from experimental strategies.

Lesson 4 • Transcranial Doppler in Neuroanesthesia

Applies TCD to assess cerebral blood flow velocity, autoregulation, and embolic signals intraoperatively. Connects TCD findings to hemodynamic management and surgical technique adjustments.