Serratus Anterior Plane Block
December 09, 2025Information
- ID
- 13687
- To Cite
- DCA Citation Guide
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.