POTD: Eye'm Scared!

Does anyone else get freaked out by stuff involving the eye? Well, not after this POTD you won’t.

Today I’m going to cover eyelid lacerations, probably one of the trickier ones we can encounter in the ED. First off, you must rule out corneal injury and globe rupture. Once that has been done, you can move on to considering the repair.

Repairing eyelid lacs are within the realm of the ED physician, but only under certain conditions. If any of the following findings are present, then you should involve an ophthalmologist for definitive repair.

·      Involvement of the lid margin >1mm

·      Within 6-8mm of the medial canthus (suggesting lacrimal duct/sac involvement) – can lead to poor drainage, excessive tearing and recurrent conjunctivitis or stye!

·      Through and through lacerations (involves the tarsal plate)

·      Ptosis (suggesting levator palpebrae muscle involvement)

To repair, considering using a supraorbital block or infraorbital block depending on location. Topical LET or EMLA may be considered if applied carefully to prevent leakage into eye. Then use very fine material such as 6-0 or even 7-0 sutures. These should be removed in 5-7 days and pt should follow up with an ophthalmologist ideally.

Some cool tricks tricks of the trade:

1)  To check for lacrimal duct involvement: can instill fluorescein carefully over cornea only and place a wood’s lamp over laceration. If fluorescence in wound, that means you have lacrimal duct involvement

2)  Use Tegaderm and cut a window into it using fine scissors to approximate the size/shape of wound you want to repair. Place over area of interest and can use tissue adhesive to glue together laceration; any glue run-off will get on Tegaderm instead!

3)  Use tetracaine and then place a Morgan Lens under the lids to act as an eye shield to prevent iatrogenic globe rupture while suturing.

References

https://lacerationrepair.com/techniques/anatomic-regions/lacerations-around-the-eye/

https://wikem.org/wiki/Eyelid_laceration

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NG Tube for SBO

Is a nasogastric (NG) tube really needed for management of small bowel obstruction (SBO)? NG tube placement is one of my least favorite ED procedures. I therefore find myself hesitating every time surgery requests one, but what is the evidence behind it?

 

Surprisingly, there is little data and no randomized control trials on the use of NG tubes in SBO. A chart review in 2013 looked at 290 patients admitted with SBO. 20% of those 290 patients had a NG tube placed. They found that ⅔ of these patients were managed non-operatively, irrespective of NG tube placement. In addition, decompression with an NG tube was not found to be associated with decreased bowel ischemia or need for surgery. Use of an NG tube was actually found to be associated with worse outcomes, such as increased length of hospital stay, higher complication rate, and longer time to resolution.

 

Part of the reason that I dislike this procedure is the apparent discomfort we cause when placing them. Patients routinely rate it as one of the most painful procedures performed in the ED. We attempt to decrease pain with anesthetics, even though many ED physicians do not believe them to be effective. A RCT was done assessing the use of surgical lubricant versus topical lidocaine and phenylephrine for the nose with tetracaine and benzocaine spray for the throat. Patients reported a significant decrease in discomfort when providers used vasoconstrictors and topical anesthetics compared to surgical lubricant. 

 

However, there are some cases where NG tubes may be indicated. Patients who are vomiting after antiemetics or have a significantly distended stomach may benefit. Rather than placing them on all patients diagnosed with an SBO, we should select patients for this procedure based on their symptoms.


Thanks for reading!

Ariella 

Resources:

Fonseca AL, Schuster KM, Maung AA, Kaplan LJ, Davis KA. Routine nasogastric decompression in small bowel obstruction: is it really necessary? Am Surg. 2013 Apr;79(4):422-8. PMID: 23574854

Paradis M. Towards evidence-based emergency medicine: Best BETs from the Manchester Royal Infirmary. BET 1: Is routine nasogastric decompression indicated in small bowel occlusion? Emerg Med J. 2014 Mar;31(3):248-9. doi: 10.1136/emermed-2014-203617.1. PMID: 24532357

Singer AJ, Konia N. Comparison of topical anesthetics and vasoconstrictors vs lubricants prior to nasogastric intubation: a randomized, controlled trial. Acad Emerg Med. 1999 Mar;6(3):184-90. doi: 10.1111/j.1553-2712.1999.tb00153.x. PMID: 10192668

Witting MD. "You wanna do what?!" Modern indications for nasogastric intubation. J Emerg Med. 2007 Jul;33(1):61-4. doi: 10.1016/j.jemermed.2007.02.017. Epub 2007 May 30. PMID: 17630077


Temporary Wayne Catheter Replacement Kits

I wanted to make you aware of the new *temporary* replacement pigtail kits that we have available right now. We have ordered the normal Wayne catheter replacements, but they will take a little more time to come. You can find the pigtail kits in the cabinets between Resus 51/52. I've attached the picture of the packet, and a quick video tutorial (https://tinyurl.com/578wnbve) that shows you how to use it.

Contents of the new kits:

- short needle
- guide wire
- 3-way stopcock
- Heimlich valve
- pigtail catheter
- dilator

This is a very basic kit, so I recommend that you grab the following supplies that are not included in the packet.

- 10cc syringe to attach to the needle
- Lidocaine supplies (lido, syringe, blunt needle, subQ needle)
- Chloraprep
- Sterile supplies: gown, sterile gloves, drape
- Gauze
- 11 blade scalpel
- Suture material, needle driver
- Occlusive dressing materials

Please note - there's no separate trocar! The kit requires you to use the guide wire as the trocar... so make sure you dilate well. If your patient has a higher BMI, talk to your attending about whether or not this is the appropriate kit for them.