Ability of Near Infrared Spectroscopy to Isolate Compartments of the Extremity

J&M Shuler

Status: Completed

Conditions: Acute Compartment Syndrome

Treatments: Behavioral: Muscle contraction

Study type: Observational

Funder types: Industry

Identifiers

NCT01283451

NIRS-01

Details and patient eligibility

About

Near infrared spectroscopy (NIRS) provides a non-invasive means of continuously monitoring tissue oxygenation, which may be useful for diagnosis of acute compartment syndrome (ACS). Placement of these sensor pads on the surface of the skin must be such that light penetrates the intended compartment without inadvertently obtaining measurements of an adjacent compartment. The objective of this study is to examine whether the NIRS measurements of each compartment truly represent the tissue perfusion of the intended compartment, as indicated by the predictable decrease in muscle oxygenation of a given compartment in response to muscle fatigue. The investigators hypothesize that the tissue oxygenation values of the stimulated compartment will significantly decrease following muscle stimulation, indicating that the intended muscle compartment was successfully isolated. Additionally, the investigators hypothesize that NIRS values of unstimulated muscle compartments will not change from baseline.

Enrollment: 63 patients

Sex: All

Ages: 18 to 75 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 18-75 years old
• no current extremity injuries
• willing to provide written informed consent

Exclusion criteria

• history of any anatomy-altering surgery to the extremity in question
• history of peripheral vascular disease
• history of pulmonary disease

Trial design

63 participants in 1 patient group

Exercise

Description:

NIRS values of all participants will be measured at baseline and following each 30-60 second exercise.

Treatment:

Behavioral: Muscle contraction