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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04456543
Other study ID # HangangSHH-11
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date June 10, 2020
Est. completion date August 20, 2020

Study information

Verified date June 2020
Source Hangang Sacred Heart Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The investigators developed a portable pressure measuring device using silicon piezoresistive pressure sensors. As PicoPress® is the most accurate (i.e., lowest variation and error) manometric sensor for pressure measurement, the investigators used it to compare and examine the accuracy of the proposed device regarding in vitro pressure measurements. The purpose of this study was to determine the effectiveness of pressure garment therapy using proposed device with objective data obtained with a randomized within wound comparison. Pressure measurements were acquired through a readout circuit consisting of an analog-to-digital converter, a microprocessor, and a Bluetooth transmission module for wireless data transmission to an external device. The mean pressure values measured by the sensors were compared to those obtained from PicoPress®. This was a double-blinded, randomized, controlled trial of patients with hypertrophic scars. In the pressure monitoring group, garment pressures were monitored using the portable pressure measuring device, and the compression garment was adjusted so that the pressure was maintained at the therapeutic range of 15 - 25 mmHg. In the control group, non-surgical standard treatment of burn scars except for pressure monitoring was performed in the same manner.


Description:

The investigators developed a portable pressure measuring device using silicon piezoresistive pressure sensors. As PicoPress® is the most accurate (i.e., lowest variation and error) manometric sensor for pressure measurement, the investigators used it to compare and examine the accuracy of the proposed device regarding in vitro pressure measurements. The purpose of this study was to determine the effectiveness of pressure garment therapy using proposed device with objective data obtained with a randomized within wound comparison. Pressure measurements were acquired through a readout circuit consisting of an analog-to-digital converter, a microprocessor, and a Bluetooth transmission module for wireless data transmission to an external device. The mean pressure values measured by the sensors were compared to those obtained from PicoPress®. This was a double-blinded, randomized, controlled trial of patients with hypertrophic scars. In the pressure monitoring group, garment pressures were monitored using the portable pressure measuring device, and the compression garment was adjusted so that the pressure was maintained at the therapeutic range of 15 - 25 mmHg. In the control group, non-surgical standard treatment of burn scars except for pressure monitoring was performed in the same manner. To evaluate the effect of a pressure monitoring device, the investigators compared the skin test results (thickness, melanin, erythema, TEWL, and skin elasticity levels) between the two groups, from baseline measures immediately before the treatment and measures immediately after 2 months. The participants were made comfortable and acclimatized to room conditions. Room temperature was maintained at 20-25'C and relative humidity at 40-50 %. In the supine position, skin properties were measured. The thickness was measured with a ultrasonic wave equipment (128 BW1 Medison, Korea). Mexameter® (MX18, Courage-Khazaka Electronics GmbH, Germany) was used to measure melanin levels and the severity of erythema. The higher values indicating a darker and redder skin. Transepidermal water loss (TEWL) was measured with a Tewameter® (Courage-Khazaka Electronic GmbH, Germany), which is used for evaluating water evaporation. Elasticity was measured using Cutometer SEM 580® (Courage-Khazaka Electronic GmbH, Cologne, Germany), which applies negative pressure (450 mbar) on the skin. The numeric values (mm) of the skin's distortion is presented as the elasticity. Two seconds of negative pressure of 450 mbar is followed by 2 s of recess, and this consists of a complete cycle. Three measurement cycles were conducted, and the average values were obtained. The parameters consist of the following biomechanical skin properties: distenstibility, elasticity, and viscoelasticity. Distensibility means the length of total displacement from initial postion at maximum negative pressure. Gross elasticity means the ability of the skin to return to its initial position following displacement. Biologic elasticity means the ratio of immediate retraction to total displacement. Viscoelasticity means the ratio of delayed distension of immediate distension. Outcome measurements and data analyses were performed by a trained and blinded outcome assessor who was not involved in the intervention. Possible complications (pain, ecchymosis, pain, skin abrasion, and swelling) were observed.


Recruitment information / eligibility

Status Recruiting
Enrollment 48
Est. completion date August 20, 2020
Est. primary completion date August 10, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria:

- Adult over 18

- partial-/full-thickness burns

- fully epithelialization after spontaneously healed or required skin grafting

Exclusion Criteria:

- open wounds

- infection on the burn scars

- those taking steroids for the scars

- condition affecting wound healing (e.g., diabetes)

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
pressure monitoring
garment pressures were monitored using the portable pressure measuring device and the compression garment was adjusted so that the pressure was maintained at the therapeutic range of 15 - 25 mmHg.

Locations

Country Name City State
Korea, Republic of Hangang Sacred Heart Hospital Seoul Yeongdeungpo-Ku

Sponsors (2)

Lead Sponsor Collaborator
Hangang Sacred Heart Hospital Ministry of Health, Republic of Korea

Country where clinical trial is conducted

Korea, Republic of, 

References & Publications (3)

Harries CA, Pegg SP. Measuring pressure under burns pressure garments using the Oxford Pressure Monitor. Burns. 1989 Jun;15(3):187-9. — View Citation

Li-Tsang CW, Zheng YP, Lau JC. A randomized clinical trial to study the effect of silicone gel dressing and pressure therapy on posttraumatic hypertrophic scars. J Burn Care Res. 2010 May-Jun;31(3):448-57. doi: 10.1097/BCR.0b013e3181db52a7. — View Citation

Macintyre L, Baird M. Pressure garments for use in the treatment of hypertrophic scars--a review of the problems associated with their use. Burns. 2006 Feb;32(1):10-5. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change from baseline scar thickness at 8 weeks hypertrophic scar thickness. The thicker the measurement thickness, the larger the number. 8 weeks (before intervention and 8 weeks after intervention)
Secondary Change from baseline scar pigmentation at 8 weeks measurement of melanin level. The higher values indicating a darker 8 weeks (before intervention and 8 weeks after intervention)
Secondary Change from baseline scar erythema at 8 weeks The higher values indicating a redder skin. 8 weeks (before intervention and 8 weeks after intervention)
Secondary Change from baseline skin dryness at 8 weeks measurement of transepidermal water loss. The higher the measurement, the dryer the skin. 8 weeks (before intervention and 8 weeks after intervention)
Secondary Change from baseline skin elasticity at 8 weeks Biologic elasticity means the ratio of immediate retraction to total displacement using suction. The higher the measurement, the more elasticity 8 weeks (before intervention and 8 weeks after intervention)
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