Procedural Sedation & Analgesia

Author: Demian Szyld, MD
Updated: 8/6/2010

Procedural Sedation and Analgesia

Airway Assessment: Predicting difficulty

Difficult Airway (LEMON) Difficult Ventilation (MOANS)
L ook externally: syndromic, obese, gestalt M ask seal (beard, trauma, prone)
E valuate 3-3-2 rule
(mouth opening, thyromental, hyomental)
O besity
(redundant upper airway, OSA, poor reserve)
M allampati
  • I: Uvula, tonsils, palate
  • II: Upper uvula, tonsils
  • III Base of uvula
  • IV: Hard palate only
A ge > 55 (Loss of airway tone)
O bstruction: OSA, PTA, epiglottis, mass N o teeth
N eck mobility: Rheum. arthritis, c-collar S tiffness (asthma, COPD, pregnant)

Preparation

Assemble appropriate staffing and equipment (SOAPME):

  • S uction
  • O xygen
  • A irway adjuncts
  • P ersonnel
  • M edications
  • E quipment

Select sedative AND analgesic if both are required. Match duration of procedure to duration of drug.

Medications

SEDATION medications

Medication / Initial IV dose Advantage Side Effects
Midazolam 0.05 mg/kg Shortest benzodiazepine
Lorazepam 0.05 mg/kg Short benzodiazepine
Diazepam 0.1 mg/kg Muscle relaxation
Etomidate 0.15 mg/kg Short duration Myoclonus
Propofol 1-2 mg/kg Short duration Transient hypotension
Ketofol 0.5 mg/kg
1:1 ratio of
ketamine:propofol
CV stable, amnesia, analgesia

ANALGESIC medications

Medication / Initial IV dose Advantage Side Effects
Fentanyl 1-2 mcg/kg Short duration Decreased respiratory rate
Hydromorphone 0.02 mg/kg | Decreased respiratory rate and blood pressure
Morphine 0.1-0.2 mg/kg | Decreased respiratory rate and blood pressure

DISSOCIATIVE medications

Medication / Initial IV dose Advantage
Ketamine 1-2 mg/kg
Dexamedetomidine 0.5-1 mcg/kg
over 10 min
No respiratory depression

References

  • Cravero JP, Beach ML, Blike GT, Gallagher SM, Hertzog JH; Pediatric Sedation Research Consortium.The incidence and nature of adverse events during pediatric sedation/anesthesia with propofol for procedures outside the operating room: a report from the Pediatric Sedation Research Consortium. Anesth Analg. 2009 Mar;108(3):795-804. doi: 10.1213/ane.0b013e31818fc334. [PubMed]
  • Shah A, Mosdossy G, McLeod S, Lehnhardt K, Peddle M, Rieder M .A blinded, randomized controlled trial to evaluate ketamine/propofol versus ketamine alone for procedural sedation in children. Ann Emerg Med. 2011 May;57(5):425-33.e2. doi: 10.1016/j.annemergmed.2010.08.032. Epub 2010 Oct 13. [PubMed]
  • Andolfatto G, Abu-Laban RB, Zed PJ, Staniforth SM, Stackhouse S, Moadebi S, Willman E.,Ketamine-propofol combination (ketofol) versus propofol alone for emergency department procedural sedation and analgesia: a randomized double-blind trial.Ann Emerg Med. 2012 Jun;59(6):504-12.e1-2. doi: 10.1016/j.annemergmed.2012.01.017. Epub 2012 Mar 7. [PubMed]
  • Drayna PC, Estrada C, Wang W, Saville BR, Arnold DH, Ketamine sedation is not associated with clinically meaningful elevation of intraocular pressure. Am J Emerg Med. 2012 Sep;30(7):1215-8. doi: 10.1016/j.ajem.2011.06.001. Epub 2011 Dec 12. [PubMed]
  • Green SM, Roback MG, Kennedy RM, Krauss B. Clinical Practice Guideline for Emergency Department Ketamine Dissociative Sedation: 2011 Update. Annals of emergency medicine. 2011 [PubMed]