Real-Time Muscle Pressure Measurements in Patients at Risk for Acute Compartment Syndrome

Acute Compartment Syndrome

Acute compartment syndrome, minimally invasive, sensor, intracompartmental muscle pressure

The purpose of this trial is to conduct a pilot study that will aid in the design of an evaluation of the clinical benefit of MY01, an FDA cleared device, that allows continuous monitoring of intracompartmental muscle pressure in patients at risk for developing acute compartment syndrome. MY01 has previously been successfully tested on animal and Human cadaver Acute Compartment Syndrome models within the RI MUHC through Department of Defense research Grant (Combat Casualty Care Research Program (CCCRP). This trial is supported by the same grant, as the next phase of the overall project. This is a multi-center, non-randomized, historically controlled, prospective trial of the MY01 device. A cohort of 50 participants will be prospectively enrolled with two weeks follow up to document clinical benefit of the device. Results from this study will be used to inform the design of a larger study designed to demonstrate the clinical benefit of the MY01 device in the early diagnosis of ACS. The role of each organisation within the trial are detailed below: * Research Institute of McGill University Health Centre (RI MUHC): study coordination and data analysis (no recruitment activity will take place in the MUHC). * Hennepin Healthcare: participants recruitment * Vanderbilt University Medical Centre: participants recruitment

Research Plan The purpose of this trial is to conduct a pilot study that will inform the design of a trial to evaluate the clinical benefit of MY01, a FDA cleared device that allows continuous monitoring of intracompartmental muscle pressure in patients at risk for developing acute compartment syndrome. The MY01 device is a digitally connected device with a companion mobile app designed to continuously monitor intracompartmental pressure, outputting the results to the mobile app, where clinicians can track the pressure in real time. There are several goals of this study. Fifty patients with high-energy injuries to the proximal leg and tibial shaft will be prospectively studied and compared to a cohort of historical controls. We want to evaluate the feasibility of collecting data related to the diagnosis of ACS and the measurement of its associated complications. We will also use this data to attempt to assign a modified Boyers grade to a cohort of prospectively enrolled patients and historical controls. Clinical validation of the modified Boyers grade will represent a large step forward in compartment syndrome research, since it will bring an objective assessment of severity to the diagnosis of acute compartment syndrome. These control patients are to be obtained from several cohorts of patients: 1- Data collected for 3 Retrospective studies on tibial fractures and dislocations resulting in acute compartment syndrome completed in Montreal General Hospital, Vanderbilt University Health Centre and Hennepin Healthcare. The data received from those existing studies will be de-identified. 2 - Patients treated in the PACS study previously funded by DOD and run by METRC. 3- Trauma Quality Programs Participant Use File (TQP) data. Another goal is to assess the reoperation rates, for limb salvage or amputation among patients that undergo continuous monitoring of ICP using the MY01 monitor relative to a cohort of historical controls who did not receive continuous monitoring. Primary Research Outcome Assess the reoperation rate and number of operative procedures for all surgically managed acute compartment syndrome patients. Secondary Research Outcomes There are numerous outcomes that are related to the severity of ACS when it is diagnosed. This study will also assess our ability to identify the following secondary outcomes among a cohort of prospectively enrolled patients relative to a cohort of historical controls. 1. Comparison of grades of ACS to the historic controls. 2. Increased proportion of lower ACS outcome grades (Grades 1,2 as per grade) 3. Reduction in time to diagnosis of ACS 4. Improved short-term visual analog pain scores (VAS) for pain in affected limb 5. Reduction in inpatient days 6. Reduction in Skin Grafts 7. Reduction in Major Myectomy 8. Reduction in Anesthesia Time for patients undergoing fasciotomy 9. Clinical ease with which the new compartment pressure monitor was inserted into a muscle compartment, per satisfaction survey.

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