Procedural Sedation
description
Transcript of Procedural Sedation
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Procedural SedationHesham YoussefPGY1, Anesthesia
+Procedural Sedation/Analgesia.
A technique of administering sedatives or dissociative agents with or without analgesics to induce a state that allows the patient to tolerate unpleasant procedures while maintaining cardiorespiratory function.
Godwin SA, Caro DA, Wolf SJ, et al. Clinical policy: procedural sedation and analgesia in the emergency department. Ann Emerg Med. 2005; 45(2):177-196.
+Goals of Sedation and Analgesia
Maintain patient safety and welfare.
Minimize physical discomfort and pain.
Control anxiety, minimize psychological trauma, maximize amnesia.
Control behaviour and/or movement to allow safe performance of procedures.
Return the patient to a state in which safe discharge from medical supervision is possible.
+Indications
Diagnostic Imaging (requiring sedation only)
a. CT
b. MRI
+Indications
Painful Diagnostic (requiring both sedation and analgesia), including:
a. Lumbar puncture
b. Sexual assault examination with forensic evidence collection
+Indications
Painful Therapeutic (requiring both sedation and analgesia), including:
a. Fracture/ dislocation reduction
b. Complex laceration repair
c. Foreign body removal
d. Abscess incision and drainage
+Patient Assessment
History:a. Concurrent medical illnesses.
b. Medications.
c. Allergies .
d. History of sleep disordered breathing or snoring .
e. Major medical illnesses
f. Previous adverse reactions to anesthetic/ sedative agents
g. Family history of an adverse reaction to sedation, analgesia, or GA
h. Last oral intake
+Patient Assessment
Fasting:
ER literature: No correlation found between fasting status and incidence
of aspiration in procedural sedation outside the OR
Analgesia, anesthesia, and procedural sedation. In: Tintinalli JE, Stapczynski JS, Cline DM, Ma OJ, Cydulka RK, Meckler GD, eds. Tintinalli's emergency medicine. Seventh ed. The McGraw-Hill Companies, Inc.; 2011.
+Patient Assessment
Fasting:
ACEP: procedural sedation may be safely administered to pediatric patients
in the ED who have had recent oral intake.
However, theoretical risk of aspiration should still be considered ASA Fasting Guidelines
Green SM, Roback MG, Miner JR, Burton JH, Krauss B. Fasting and emergency department procedural sedation and analgesia: a consensus-based clinical practice advisory. Ann Emerg Med. 2007; 49(4):454-461.
+Patient Assessment
Physical Exam:
a. Cardio-respiratory status & Neurological Status.
b. Airway Assessment. Features of difficult BMV/intubation Previous history of difficult airway
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+Exclusion criteria
Difficult airway – abnormal face, mouth, dentition or neck
Sleep apnea, stridor, airway obstruction, severe asthma
Tracheal abnormalities
Severe cardiorespiratory disease
Severe GERD
Severe obesity
Raised intracranial pressure
Severe neurological impairment and/ or bulbar dysfunction
+ASA
Coté CJ, Wilson S. Guidelines for monitoring and management of pediatric patients during and after sedation for diagnostic and therapeutic procedures: an update. Pediatrics. 2006; 118(6):2587-2602.
+Personnel
Physicians should be competent in:
a. Pediatric airway management and resuscitation
b. Patient assessment & preparation
c. Patient monitoring
d. Pharmacology of PSA
e. Recognition and treatment of the complications of PSA
+Personnel
Nurses & ancillary personnel (i.e. RT) should be :
a. Comfortable with basic airway management and resuscitation
b. Knowledgeable of patient preparation and monitoring procedures
c. Familiar with proper documentation of PSA technique
d. Able to prepare a time-based record of the treatment procedure
+Consent
Written consent.
proposed benefits (performing procedure effectively while minimizing pain/anxiety/psychological trauma).
possible risks (Air Way compromise, hypoxia, vomiting),
Drug: options - potential routes - Alternatives
+Equipment and Monitoring (SOAPME).
S (suction)
O (oxygen)
A (airway)
P (pharmacy)
M (monitors)
E (extra equipment) - (e.g., defibrillator)
Coté CJ, Wilson S. Guidelines for monitoring and management of pediatric patients during and after sedation for diagnostic and therapeutic procedures: an update. Pediatrics. 2006; 118(6):2587-2602.
+Pharmacology
+Ketamine
Ketamine is a dissociative anasthetic with sedative, analgesic and amnestic properties
Administration IV 1 mg/kg, repeat 0.5-1 mg/kg q10min prn Onset: 1-2 min Duration: 10-15 min Recovery: 60 min.
+Ketamine
Ketamine is a dissociative anasthetic with sedative, analgesic and amnestic properties
Advantages Anesthetic and Analgesic Short-acting Maintain airway protective reflexes, spontaneous
respirations, and cardiopulmonary stability
+Ketamine
Ketamine is a dissociative anasthetic with sedative, analgesic and amnestic properties
Disadvantages Emesis Laryngospasm Agitation/Emergence reaction Increases salivation Increase ICO & IOP
+Ketamine
Ketamine is a dissociative anasthetic with sedative, analgesic and amnestic properties
Contraindications: Age < 3 months Psychosis Intraocular trauma or glaucoma Systemic hypertension Thyrotoxicosis
+Propofol
Propofol is a short acting sedative hypnotic which, due to its potency, has been used for both painful and painless procedures
Administration IV 1-2 mg/kg, repeat 0.5 mg/kg q3-5 min IV Infusion: start at 25-50 mcg/kg/min Onset seconds Duration minutes
+Propofol
Propofol is a short acting sedative hypnotic which, due to its potency, has been used for both painful and painless procedures
Advantages Rapid onset, short recovery time, easy titratability. reliable potency to induce deep sedation Mild anti-emetic properties Decreases CMRO2 and CBF, as well as ICP
+Propofol
Propofol is a short acting sedative hypnotic which, due to its potency, has been used for both painful and painless procedures
Disadvantages Anesthetic, with NO analgesia Pain on IV Administration Respiratory and cardiovascular depressant
+Ketofol
Advantage:
a. Shorter recovery time
b. Decreases dose for both agents - minimize side
effects (resp + cardiac depression, emesis,
emergence reaction)
+Ketofol
Administration:
In 2010, Andolfatto and Willman published a series of 219 pediatric patients who received a 1:1 mixture of 10 mg/ml ketamine and 10 mg/ml propofol in a single syringe .
Another 2007 study by Sharieff et al described a different method of “ketofol” administration, ketamine 0.5 mg/kg followed 1 minute later by propofol 1 mg/kg. Additional doses of ketamine 0.25 mg/kg and/ or propofol 0.5 mg/kg were given as deemed necessary by the ED physician.
+Midazolam
Midazolam is a short-acting benzodiazepine that provides sedation, amnesia and anxiolysis.
Administration IV/IM 0.05-0.1 mg/kg (max single dose 2 mg), repeats q2-5
min Routes: PO, PR, IV, IM, IN Onset: IV 1-2min, IM 5-10 min Duration: IV 45-60min, IM 60-120min
+Midazolam
Midazolam is a short-acting benzodiazepine that provides sedation, amnesia and anxiolysis.
Advantages Rapid onset Anxiolytic, amnestic, sedative Many routes of administration Rare resp depression when used as sole agent Effective reversal agent (Flumazenil)
+Midazolam
Midazolam is a short-acting benzodiazepine that provides sedation, amnesia and anxiolysis.
Disadvantages No analgesia Respiratory depression/Apnea (Specially when combined
with opioids) Paradoxical reactions (hyperactivity, aggressive behaviour)
+Fentanyl
Fentanyl is a potent synthetic opioid.
Administration: IV: 1.0 mcg/kg, repeat dose every 3 minutes as needed Onset: IV: 3-5 minutes Duration: IV: 30-60 minutes
Advantage: Rapid onset, short duration, less N/V
Disadvantage: resp depression, chest wall rigidity, facial pruritus
Reversal: Naloxone
+Other Medications
Nitrous Oxide. 50-70 %.
Etomidate. 0.1-0.3 mg/kg.
Pentobarbital. (IV, IM, PO).
a. <4 years: 3-6 mg/kg PO
b. >4 years: 1.5-3 mg/kg PO.
Chloral Hydrate. 50-75 mg/kg/dose 30 to 60 minutes prior to procedure; may repeat 30 minutes after initial dose if needed.
+Emergency States During Sedation
Airway Obstruction (Pharyngeal)
Laryngospasm
Hypoventilation/Apnea
Aspiration
Cardiovascular instability
+Recovery & Discharge
Airway patency, Resp, cardiovascular function, and hydration are satisfactory.
The patient’s level of consciousness has returned to baseline .
The patient can sit unassisted.
The patient can take oral fluids without vomiting;
The patient, or a responsible person who will be with the patient, can understand the discharge instructions.
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Thank You