Upper Extremity Blocks Flashcards
Peripheral Nerve Blocks
Peripheral Nerve Blocks
- Using the anatomy that we have learned to provide anesthesia and analgesia for surgical procedures.
- Must have knowledge of the anatomy
Preparation
Preparation
- Equipment
- Resuscitation equipment must be immediately available
- Ambu, intubating equipment
- Monitors
- Should be monitored the same regardless of anesthetic type
- What do you want during the block?
- Resuscitation equipment must be immediately available
Equipment
Equipment
- Block stuff
- Needles
- B-bevel, tubing, stimulating (insulated), echoic
- Insulated vs non insulated
- Local Anesthetic
- Nerve Stimulator
- patient, - needle
- Ultrasound
- Needles
- PPE
- Skin Marker
- Consent
- Sedation
- Assistant
- Prep
- Skin local
- Catheters
Prep
Prep
- Consent for anesthesia
- Know procedure, risks, benefits, alternatives
- ID area to block
- Placing a block on the wrong side is extremely bad form
- Prep, Drape, Be sterile
Superficial Cervical Block
Superficial Cervical Block
- Indications
- Superficial surgery of the neck and shoulder, thyroid, CEA
- Position
- Head relaxed turned to opposite side
- Landmarks
- Mastoid process
- Transverse process of C-6
- Should be easily palpable behind clavicular head of SCM just below level of cricoid
- Posterior border of SCM
- Draw line from mastoid to C-6, midpoint is point of needle insertion
Superficial Cervical Block: Technique
Superficial Cervical Block: Technique
- Field Block
- 10-15 mL
- Superior and Inferior redirections along posterior border of SCM
- Sub-q posterior and behind SCM no more than 1 cm deep
Superficial Cervical: Picture
Superficial Cervical: Picture
Superficial Cervical: Complications
Superficial Cervical: Complications
- Infection*
- Hematoma*
- Phrenic Nerve Block
- LA toxicity*
- Nerve injury*
- Inadvertant Subarachnoid or Epidural
- TIA
- Recurrent Laryngeal Nerve block
* = pertains to all blocks
Interscalene Block
Interscalene Block
- Indications
- Shoulder, Lateral 2/3 of clavical, proximal humerous, shoulder joint
- Arm and forearm, likely to miss ulnar distribution from inferior trunk
- Position
- Supine, slight elevation of head, head turned slightly away, shoulder relaxed and pushed down
- Landmarks
- Sternal head of SCM
- Clavicular head of SCM
- Upper border of cricoid cartilage
- Clavical
Interscalene: Picture
Interscalene Picture
Interscalene: Technique
Interscalene Technique
- Many different
- 20-30 mL
- Elevate head to ID SCM
- Palpate just behind SCM for Scalene groove
- Needle inserted at level of C6 perpendicular to skin
- Advance to stimulation or parasthesia below shoulder
- Stimulation at shoulder could be suprascapular nerve
Interscalene: Complications
Interscalene: Complications
- Spinal or Epidural
- Intervertebral injection
- Neuropathy*
- Mechanical plexus injury*
- Infection*
- Pneumo*
- LA toxicity*
- Phrenic nerve block
- Horner’s syndrome
Supraclavicular Block
Supraclavicular Block
- Indications
- Any surgery of UE not involving shoulder
- Excellent for elbow and hand
- Contraindications
- No bilateral block
- Possible Respiratory Emergency
- Bilateral Phrenic nerve blocks
- Possible Respiratory Emergency
- No bilateral block
- Anatomy
- Bracial Plexus runs with subclavian artery lower in interscalene triangle
- Landmarks
- Lateral insertion of SCM to clavicle
- Clavicle
- Patients midline
- Position
- Semi-sitting with head to opposite side
- Lower shoulder with elbow flexed and relaxed
- Palm supinated
- Monitor for stimulation
Supraclavicular: Technique
Supraclavicular: Technique
- 25-40 mL
- ID lateral border of SCM to clavicle (Mark)
- Midclavicular point (Mark)
- Approximately 1 inch lateral to SCM insertion
- Place finger above clavicle at midpoint
- Needle insertion superior to finger
- Angled caudally
- Parallel to midline (Do not angle medially)
- No Deeper than 1 inch with needle
- Endpoint is flexion or extension of fingers
- BEST TECHNIQUE IS ULTRASOUND
Supraclavicular Brachial Plexus Block: Picture
Supraclavicular Brachial Plexus Block: Picture