TY - CHAP M1 - Book, Section TI - Chapter 105. Spinal Surgery and Neurophysiologic Monitoring A1 - Gaudet, John G. A1 - Lysakowski, Christopher A2 - Atchabahian, Arthur A2 - Gupta, Ruchir PY - 2013 T2 - The Anesthesia Guide AB - Evaluation of risk depends on several factors:Elective versus emergent versus staged surgeryOne versus several vertebral levelsPrimary versus repeat procedureALL cases of spine surgery associated with:Risk of medullary injuryRisk of significant blood lossRare occurrence of significant venous emboli (beware if PFO)Higher prevalence of chronic pain and drug dependenceProne positioning associated with:Cardiovascular instabilityPositioning injuries: pressure points and nerve damage, rarely rhabdomyolysisVisual lossDifficult access to airwayPatients with previous high (above T5) spinal cord injury (See Chapter 32)Abnormal autonomic responses (hypertensive crisis or hypotension and bradycardia)Vasoplegia (relative hypovolemia)Atelectasis from inefficient cough and/or hypoventilationBladder spasticityCreatinine does not correlate with renal functionIntramuscular injections may have delayed absorption SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/19 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=57262121 ER -