Muscular compartment syndrome (MCS) is consecutive to an increase in intramuscular compartment pressures, and is a rare but serious postoperative complication. The INVOS (In Vivo Optical Spectroscopy) monitors tissular oxygenation continuously and non-invasively. The objective is to develop a model mimicking the physiopathology of MCS to assess the interest of the INVOS in this case.
After inflation of a tourniquet (pressure equal to the mean arterial pressure, we will obtain a model of slight venous congestion and arterial hypoperfusion. A comparison will be made between INVOS monitoring, sensory deficits, pain, electromyography and invasive pressure.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
10
Inflation of a tourniquet (pressure equal to the mean arterial pressure) obtaining a model of slight venous congestion and arterial hypoperfusion
Near Infraread spectroscopy, non invasive
Electromyography, non invasive
Cliniques universitaires Saint-Luc
Brussels, Belgium
Comparison Between INVOS Monitoring and Electromyography
A comparison will be made between the INVOS monitoring and non invasive (transcutaneous) EMG monitoring (AP Block), to determine the accuracy of the INVOS monitoring to predict AP block. Measures were: \[mean (SD)\] INVOS (in %) value at baseline and at the time of the block
Time frame: 45 minutes
Intracompartmental Pressure (ICP)
\[mean (SD)\] ICP (in mmHg), value at baseline and at the time of the block
Time frame: 45 minutes
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