Compartment pressure measurement

Revision as of 21:48, 20 July 2014 by Ostermayer (talk | contribs) (Procedure)

Indications

Compartment Syndrome Indications

Contraindications

  • Avoid areas of cellulitis.
  • No absolute contraindications

Equipment Needed

Procedure

  1. Contents of the pressure measurement kit
  2. Remove contents from wrapping
  3. Attach chamber to the pre-filled saline syringe
  4. Place the aforementioned into the monitor/unit
  5. Place needle onto chamber
  6. Eject excess air, if present, from syringe
  7. Zero the assembled unit at the angle you will be entering compartment
    1. Determine the appropriate site of injection to measure the desired compartment pressure
  8. Clean the area with alcohol prep or chlorhexidine.
  9. Insert, inject 2-3 drops of saline, and await measurement

Steps to measure compartment pressure using a striker needle

Pressure Interpretation

Interpretation of Compartment Pressure

  • Normal is <10 mm Hg
  • Pressures <20 mmHg can be tolerated w/o significant damage
  • Exact level of pressure elevation that causes cell death is unclear. It was previously thought pressure >30 mmHg was toxic although the "delta pressure" may be better predictor than absolute pressure

ΔPressure = [Diastolic Pressure] – [Compartment Pressure][1]

  • ΔPressure < 30 mm Hg is suggestive of compartment syndrome

Complications

See Also

Compartment Syndrome

External Links

Sources

  1. Elliott, KGB. Diagnosing acute compartment syndrome. J Bone Joint Surg Br. 2003 Jul;85(5):625-32. PDF