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Serratus Anterior Plane Block

December 09, 2025
ID
13687

Transcript

  • 00:01Welcome to Yale emergency ultrasound
  • 00:03nerve block series.
  • 00:05Today, we're going to go
  • 00:06over serratus anterior plane block.
  • 00:08That way, you're ready to
  • 00:09block at your next shift.
  • 00:11The first step is to
  • 00:12go to the cart by
  • 00:13the ultrasound station near a
  • 00:15sixteen.
  • 00:16On the bottom drawer, you
  • 00:17will find premade kits to
  • 00:19use for nerve blocks.
  • 00:22The kits include a sterile
  • 00:24probe cover,
  • 00:25chloroprep,
  • 00:27a saline flush, an echogenic
  • 00:29needle,
  • 00:30a blunt needle, and a
  • 00:31ten cc syringe.
  • 00:35Because this is a large
  • 00:36volume block, make sure to
  • 00:37have the patient on the
  • 00:39telemonitor
  • 00:39before you start. Local anesthetic
  • 00:42systemic toxicity is rare but
  • 00:44life threatening.
  • 00:45Have the patient's weight updated
  • 00:47in the chart and use
  • 00:48MD Calc, local anesthetic dosing,
  • 00:51to calculate the maximum dose
  • 00:53allowed for this plain block.
  • 00:55Make sure to review with
  • 00:56the pharmacist.
  • 00:57For more information on LAST,
  • 00:59please review the material in
  • 01:01the email sent to you.
  • 01:04Now we will use our
  • 01:05ultrasound to identify the anatomy.
  • 01:10Identify the latissimus dorsi,
  • 01:13serratus anterior,
  • 01:15the ribs, and the pleura.
  • 01:17We have two options for
  • 01:18this plain block. We can
  • 01:19either inject anesthetic
  • 01:21under the latissimus dorsi
  • 01:23or under the serratus interior
  • 01:25on top of a rib.
  • 01:28Now let's review the anatomy
  • 01:30using our ultrasound.
  • 01:32Our indicator is in the
  • 01:33transverse orientation
  • 01:35towards the operator.
  • 01:37The first layer of muscle
  • 01:38we see is the latissimus
  • 01:40dorsi. Under it, we see
  • 01:42the serratus anterior.
  • 01:44The rib is seen with
  • 01:45a pleural line below it.
  • 01:46The two stars indicate our
  • 01:48possible locations for this block.
  • 01:51Stay sterile, and the assistant
  • 01:53should push the syringe.
  • 01:54Visualize the needle at all
  • 01:56times. Once your needle is
  • 01:57in the correct position, have
  • 01:59your assistant push saline slowly.
  • 02:01You should be seeing hydrodissection
  • 02:03of the fascial plane.
  • 02:04Now you can have the
  • 02:06assistant switch to anisone.