When suspicion for compartment syndrome arises, at what intracompartmental pressure does your threshold elevate?

• A. 10 mm Hg
• B. 30 mm Hg
• C. 50 mm Hg
• D. 75 mm Hg

Answer: (B)

In cases where compartment syndrome is suspected, the threshold intracompartmental pressure for clinical intervention, such as fasciotomy, is typically around 30 mm Hg. This pressure level is significant because it is associated with increased risk of muscle and nerve ischemia.

At pressures exceeding this threshold, perfusion to the tissues within the affected compartment may be compromised, leading to irreversible damage. It is crucial to monitor these pressures closely, particularly in patients with fractures or other injuries that suggest potential compartment syndrome. Early recognition and intervention at or above this pressure level can help prevent serious complications, including muscle necrosis or permanent functional deficits.

The pressure thresholds below 30 mm Hg are generally considered normal physiological levels and are less likely to result in acute complications, while significantly higher pressures indicate more severe and urgent conditions. Thus, the established threshold of 30 mm Hg serves as a guideline for clinicians in making decisions regarding surgical intervention for suspected compartment syndrome.