Maverick - NDANA · Regional Anesthesia Education, LLC. The infraclavicularblock is a brachial...
Transcript of Maverick - NDANA · Regional Anesthesia Education, LLC. The infraclavicularblock is a brachial...
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Infraclavicular Nerve Block
MaverickRegional Anesthesia Education, LLC
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The infraclavicular block is a brachial plexus block below the level of the clavicle distal to the coracoid process.
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Indications for the infraclavicular block include:
Procedures on the upper arm, elbow, forearm, wrist and hand. Postop analgesia following any procedures on upper arm, elbow, wrist or hand.
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Comfortable positioning re: fractures, obese patients, etc.
Brachial plexus at the level of ICB is still enclosed in a rather uniform sheath leading to a more dense predictable block
Catheter location is in a relatively clean and easily secured (immobile) location
High success rate.
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Deep block: passes through two muscles and fascial planes. Can be painful if using 18g needles for catheter placement.
Vascular puncture of axillary artery can lead to bleeding unresponsive to external compression
Kyphosis or severe COPD will increase risk ofpneumothorax.
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Severe Kyphosis or COPD
Coagulopathy
Traumatic nerve injury
Patient refusal
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Syringes (10ml)
Surface Electrode(EKG pad)
Betadine/Chloroprep
Appropriate needle(2 inch is adequate)
Nerve stimulator
Doppler
Sterile gloves
EKG, pulse Ox, O2
Marking pen (not Sharpie)
Steri‐strips, Tegaderm,
Dermabond
Sterile towels
Second set of hands
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Triangular depressed area below the lateral half of clavicle
Bound superiorly by clavicle and coracoid process
Anteriorly by pectoralis minor and major muscles
Posteriorly by the subscapularis
Medially by the ribs
and Laterally by the humerus.
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Trunks of brachial Plexus
Three Cords of the Brachial Plexus
Axillary artery
Five terminal branches and seven misc. branches arising from the Cords.
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Musculocutaneous, Median and Ulnar nerves are located in an anterior plane to the axillary artery. These three nerves form a horizontal M shape with the Musculocutaneous forming the most cephaladlimb, the Median forming the middle limb and the Ulnar forming the lower most caudad limb.
Axillary and Radial nerves lie in a posterior plane to the axillary artery
Musculocutaneous nerve exits the brachial sheath at the level of the coracoid process.
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Supine with head and neck neutral
Arm beside the body with hand resting on abdomen.
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DistalClavicle
Coracoid processCoracoid process is identified by pressing index finger in infraclavicular fossa and moving laterally
The rounded bony prominence is the coracoid process.
Humeral head
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Coracoid:
Mark a point 2cm caudad from coracoid process OR 2cm caudad from junction of clavicle and humeral head
Needle insertion will be in a plum bob technique to the floor.
Plexus will usually be located at 4‐6cm depth.
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Needle insertion
Lung field
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Median Nerve Response:Flexion of fingers or wristMost desirable
Radial Nerve Response:Extension of fingers or wrist
Musculocutaneous Nerve Response: Flexion of elbow (if operative site is antecubital to axillary).
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Musculocutaneous (bicep): Flexion of elbow and supination of forearmNerve is out brachial sheath at the level. If operative site is below elbow…do not take. Needle is too cephalad. Withdraw needle to sub‐q level and redirect more caudad in a parasagital plane to locate median nerve.
Pectoral Muscle: Vigorous contraction of pectoralis muscles. Needle is oriented too Medial. Withdraw needle to sub‐q level and redirect in a more Lateral direction.
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Pneumothorax
Vascular puncture with hematoma
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Middle Fingers/wrist flexion is most desirable response
Adequate volume is needed to block all branches of brachial plexus
What if you do not get an appropriate hand twitch?
Re‐direct needle making very slight adjustments
If after redirecting an adequate twitch is not attained check equipment and ensure stimulator is working properly, re‐establish landmarks and begin again
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AVOID REDIRECTING MEDIALLY
Adjust cephalad or caudal… occasionally you may have to adjust laterally
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Cornish P, Nowitz M. A Magnetic Resonance Imaging Analysis of the Infraclavicular Region: Can Brachial Plexus Depth Be Estimated Before Needle Insertion? AnesthAnalg 2005; 100: 1184‐8 Fuzier R, et al. Interest of the Infraclavicular Block in an Emergency Department: Single or Double Injections? Anesthesiology 2002; 96: 896HadzicA (2005) Infraclavicular Brachial Plexus Block. Retrieved on March 6, 2007, from New York School of Regional Anesthesia Web site. http://www.nysora.com/techniques/infraclavicular_brachial_plexus_block/Mauer K, et al. Interscalene and Infraclavicular Block for Bilateral Distal Radius Fracture. AnesthAnalg 2002; 94: 450‐2MinvilleV, et al. The Optimal Motor Response for Infraclavicular Brachial Plexus Block. AnesthAnalg 2007; 104(2): 448‐451Khaladkar B. Course material provided on Peripheral nerve blocks 2008. Chelly JE, Peripheral Nerve Blocks; A Color Atlas. 3rd ed. Meier, G. Peripheral Regional Anesthesia; An Atlas of Anatomy and Techniques; 2nd ed. Brown David L. Atlas of Regional Anesthesia; 3rd ed. 2006
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