Early Diagnosis of Compartment Syndrome by Multimodal Detection Technique (MMCS)

June 19, 2020 updated by: Second Affiliated Hospital, School of Medicine, Zhejiang University

The Value of Multimodal Monitoring in the Treatment of Compartment Syndrome: a Study Based on Healthy Volunteers

compartment syndrome has a high incidence in patients with a variety of diseases, including fractures, and delayed diagnosis or without intervention can lead to severe adverse prognosis, such as limb deformities, amputations and even death. Early diagnosis and early intervention are important, especially early diagnosis. Now, the diagnosis of compartment syndrome in clinical is based on medical history, clinical manifestations and measuring the compartment pressure by fine needle puncture. However, this diagnostic method is not easy to achieve early accurate diagnosis and non-invasive continuous monitoring. The study found that the increase of compartment pressure can lead to local changes of hemodynamic, tissue metabolism and nerve function. There are also studies and reports of near-infrared spectral tissue oxygen measurement technology, ultrasonic Doppler technology, near-infrared spectral pulse oxygen measurement technology and infrared thermal imaging technology can be used for noninvasive monitoring of acute compartment syndrome, but it is not clear that which is better above in early diagnosis of acute compartment syndrome.

The purpose of this study was to simulate the process of early pressure increase in the compartment by pressurizing the volunteers' calves by cuff, and then measured the tissue oxygen in the Anterior fascia compartment using a non-invasive monitor of the tissue oxygen parameters, the ultrasonic machine measured the blood flow signal of the upper and lower backbone blood vessels, and the blood oxygen meter to measure the blood saturation of the upper and lower ends of the limb. The infrared thermal imager measured the near and far limb temperature of the hemostatic belt and the two-point identification of the skin sensory nerve function at the far end of the fascia chamber. Then compare the correlation of these indicators with pressure changes.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The participants is health volunteers, age 18-60 years. When the participants agree to participate in the experiment, the experimenter first needs to explain the experimental process to the participants, and ask the participants to agree and sign the informed consent before they can conduct the experiment. The experiment was conducted in the emergency medicine department of a university-affiliated top three hospital.

When the participants are included in the experimental study, the general demographic information of the participants, such as name, gender, age, etc., is first collected. Ensure the experimental environment is comfortable, ambient temperature 20-24℃, ambient humidity 50-60%. Participants have loose clothing on their lower limbs to avoid pressure on their limbs. Take the supine position, keep the calf hanging, support the heel, make the calf level flush with the heart, rest for 5 minutes.

The monitor (M3002A, Philips Medizin Systeme Boeblingen GmbH, Germany) was used to continuously monitor the electrocardiogram, the left upper arm measured blood pressure (BP), and the right middle finger to monitor pulse oximetry (SpO2). The calf circumference was measured at the midpoint of the bilateral humerus with a soft ruler. The maximum thickness of anterior fascia compartment was measured at the midpoint of the tibia using an ultrasonic machine (Acclarix AX8, Shenzhen Libang Precision Instrument Co., Ltd., China).

The random number table method selects one side of the calf as the experimental side and the opposite side as the control side.

(8) The following parameters were recorded at baseline (pressure 0mmHg in the calf tourniquet on both sides): (1) heart rate, blood pressure; (2) right middle finger, lower limbs, middle toe finger vein oxygen SpO2; (3) bilateral Local blood tissue parameters (TOI, THI, ΔCHb, CHbO2, ΔCtHb) in the calf; (4) Near-infrared thermography temperature values (T-u1, T-u2) in the knee and thighs of the lower leg and the instep and toe Near-infrared thermography temperature values (T-d1, T-d2); (5) bilateral radial artery ultrasound Doppler measurement parameters (D-pa, S-pa, Vs-pa, Vd-pa, DRAF-pa) Ultrasound Doppler measurement parameters of bilateral iliac veins (D-pv, S-pv, Vs-pv, Vd-pv), bilateral posterior tibial artery and dorsal artery ultrasound Doppler measurement parameters (Vs-pta, Vd -pta, SFAF-pta, Vs-da, Vd-da, SFAF-da). (6) Two-point identification threshold TPD.

In turn, the experimental side calf tourniquet was inflated and pressurized to a pressure value of 20, 30, 40, 50, 60, 70, 80 mmHg, and the pressure inside the tourniquet was up to 10 s during pressurization, and maintained stable for 1 min, measured and the above indicators were recorded within 3 min. During the experiment, the subjects were closely monitored for adverse reactions. At the end of the study, the observation was continued for 30 minutes, and the drinking water was at least 500 ml, and the limb sensation, pain and urine color were continuously observed within 24 hours.

Study Type

Interventional

Enrollment (Actual)

25

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Hanzhou, Zhejiang, China, 310009
        • 2nd Affiliated Hospital, Zhejiang University School of Medicine Institute of Emergency Medicine, Zhejiang University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy adults, aged 18-60 years; No obvious cardiovascular diseases such as cardiovascular and cerebrovascular diseases; Complete limbs without deformity and no history of lower limb trauma; Informed consent

Exclusion Criteria:

  • pregnancy or use of oral contraceptives; History of diabetes; History of deep vein thrombosis; Peripheral neuropathy; peripheral vascular disease; History of rhabdomyolysis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: compartment syndrome model group(CSM group)
Procedure: acute compartment syndrome model of health volunteer
the acute compartment syndrome model of health volunteer is induced by pressurizing the calves by the cuff, and the cuff is inflated and pressurized to a pressure value of 20, 30, 40, 50, 60, 70, 80 mmHg. the pressure inside the cuff was up to 10 s during pressurization and maintained stable for 1 min, measured and the above indicators were recorded within 3 min.
Sham Comparator: sham group
Procedure: sham
surrounding the cuff but not inflate it.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Blood flow spectrum of the radial artery and dorsal artery by ultrasound Doppler examination
Time Frame: 40 minutes
During the cuff compression, the blood flow spectrum of the radial artery and dorsal artery was recorded by the ultrasound, and analyzed later for the blood direction and duration.
40 minutes
tissue oxygen of the compartment by Infrared oxygen saturation monitor
Time Frame: 40 minutes
The infrared oxygen saturation monitor probe is placed on the anterior surface of the anterior fascia, and the changes of tissue oxygen index are continuously monitored during the process of cuff compression.
40 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
temperture changes by near-infrared thermography
Time Frame: 40min
The temperature of the proximal and distal skin of the fascial compartment is continuously monitored by near-infrared thermography
40min
Pulse oxygen
Time Frame: 40 minutes
the pulse oxygen of right middle finger, lower limbs, middle toe finger is continuously monitored
40 minutes
Systemic hemodynamics
Time Frame: 40 minutes
heart rate, blood pressure is continuously monitored
40 minutes
Two-point identification check
Time Frame: 40 minutes
Two-point identification check of the back of foot is monitored during each pressure level
40 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University

Investigators

  • Study Chair: Mao Zhang, PHD, Second Affiliated Hospital, School of Medicine, Zhejiang University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2019

Primary Completion (Actual)

August 10, 2019

Study Completion (Actual)

August 10, 2019

Study Registration Dates

First Submitted

June 17, 2020

First Submitted That Met QC Criteria

June 19, 2020

First Posted (Actual)

June 22, 2020

Study Record Updates

Last Update Posted (Actual)

June 22, 2020

Last Update Submitted That Met QC Criteria

June 19, 2020

Last Verified

July 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • I2019001099

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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