Nerve block: Intrascalene: Difference between revisions

(expanded previous material, provided link with much more in depth instruction/videos/photos)
(Text replacement - "* " to "*")
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*Post operative analgesia for shoulder surgery
*Post operative analgesia for shoulder surgery
*[[Humerus fracture]]
*[[Humerus fracture]]
* Lacerations or abscesses of upper arm and deltoid
*Lacerations or abscesses of upper arm and deltoid


==Contraindications==
==Contraindications==
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**Specifically contralateral phrenic nerve dysfunction, due to the risk of unilateral paralysis
**Specifically contralateral phrenic nerve dysfunction, due to the risk of unilateral paralysis
==Equipment Needed==
==Equipment Needed==
* Linear Probe
*Linear Probe
* 25 g needle
*25 g needle
* 5-10cc local anesthetic
*5-10cc local anesthetic


==Procedure==
==Procedure==
* Always check for the transverse cervical artery using color Doppler.  
*Always check for the transverse cervical artery using color Doppler.  
* Keep needle tip as far from the nerve roots as possible.  
*Keep needle tip as far from the nerve roots as possible.  
* Assume phrenic paralysis and avoid in patients with tenuous respiratory status.
*Assume phrenic paralysis and avoid in patients with tenuous respiratory status.


==Complications==
==Complications==

Revision as of 18:02, 27 October 2016

Overview

An interscalene nerve block is a regional anesthesia technique, usually performed under ultrasound guidance to provide anesthesia to the shoulder and the upper arm.[1]

Indications

  • Post operative analgesia for shoulder surgery
  • Humerus fracture
  • Lacerations or abscesses of upper arm and deltoid

Contraindications

  • Severe lung disease
    • Due to risk of unilateral pneumothorax
  • Overlying infection
  • Allergy to anesthetics
  • Phrenic nerve dysfunction
    • Specifically contralateral phrenic nerve dysfunction, due to the risk of unilateral paralysis

Equipment Needed

  • Linear Probe
  • 25 g needle
  • 5-10cc local anesthetic

Procedure

  • Always check for the transverse cervical artery using color Doppler.
  • Keep needle tip as far from the nerve roots as possible.
  • Assume phrenic paralysis and avoid in patients with tenuous respiratory status.

Complications

  • Phrenic nerve dysfunction[2]
    • Causing unilateral diaphragmatic paralysis and respiratory distress.
  • Pneumothorax[3]
    • On the side of the nerve block

See Also

External Links

Great instructional page from Highland on the intrascalene nerve block http://highlandultrasound.com/interscalene-block/

References

  1. Ullah H. et al. Continuous interscalene brachial plexus block versus parenteral analgesia for postoperative pain relief after major shoulder surgery. Cochrane Database Syst Rev. 2014 CD007080
  2. Borgeat A et al. Acute and nonacute complications associated with interscalene block and shoulder surgery: a prospective study. Anesthesiology. 2001 Oct. 95(4):875-80
  3. Auroy Y. et al. Major complications of regional anesthesia in France: The SOS Regional Anesthesia Hotline Service. Anesthesiology. 2002 Nov. 97(5):1274-80.