EFFECT OF CONTINUOUS, REPEATED AND INTERMITTENT PRESSURE ON THE BIOMECHANICAL AND HISTOLOGICAL CHARACTERISTICS OF GUINEA PIG SKIN

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TORKAMAAN G.; FALAH A.; MOFID MAHMOUD; GHIASI S.; TALEBI GH.A.

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Journal: IRANIAN JOURNAL OF BIOMEDICAL ENGINEERING Year:2007 | Volume:1 | Issue:3 Page(s): 215-225

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Title

EFFECT OF CONTINUOUS, REPEATED AND INTERMITTENT PRESSURE ON THE BIOMECHANICAL AND HISTOLOGICAL CHARACTERISTICS OF GUINEA PIG SKIN

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Keywords

EXTERNAL PRESSUREQ3

ISCHEMIAQ2

SKINQ2

BIOMECHANICAL CHARACTERISTICSQ3

TENSILE STRENGTHQ3

Abstract

In this study 22 male Guinea Pigs, 4-6 months old, weighting 400-450 g were used. A computer controlled indentor system was used to apply a controlled pressure. The applied pressure was 291 mmHg for 3 hours over the trochanter region of animal hind limb. The animals were divided in three groups; in group 1, pressure was applied 3 hours continuously, in group 2, pressure was applied 90 minutes at two days and in group 3, Pressure was applied in two cycles of 90 minutes with 15 minutes rest between them. To study the biomechanical and histological changes, tissue was removed 7 days after pressure application. Uniaxial tensile test was performed at a deformation rate of 20 mm/min. In this test, the contralateral site on the experimental animal served as intra-animal control. Tissue biopsy was taken and stained with H&E and Trichorome for histological examination. Continuous pressure induced muscle necrosis. Also ultimate stress, stiffness, ultimate strain and area under the load-deformation curve decreased significantly. These results suggest that application of continuous pressure is the major cause of ISCHEMIA and necrosis of soft tissue.

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APA: Copy

TORKAMAAN, G., FALAH, A., MOFID, MAHMOUD, GHIASI, S., & TALEBI, GH.A.. (2007). EFFECT OF CONTINUOUS, REPEATED AND INTERMITTENT PRESSURE ON THE BIOMECHANICAL AND HISTOLOGICAL CHARACTERISTICS OF GUINEA PIG SKIN. IRANIAN JOURNAL OF BIOMEDICAL ENGINEERING, 1(3), 215-225. SID. https://sid.ir/paper/81642/en

Vancouver: Copy

TORKAMAAN G., FALAH A., MOFID MAHMOUD, GHIASI S., TALEBI GH.A.. EFFECT OF CONTINUOUS, REPEATED AND INTERMITTENT PRESSURE ON THE BIOMECHANICAL AND HISTOLOGICAL CHARACTERISTICS OF GUINEA PIG SKIN. IRANIAN JOURNAL OF BIOMEDICAL ENGINEERING[Internet]. 2007;1(3):215-225. Available from: https://sid.ir/paper/81642/en

IEEE: Copy

G. TORKAMAAN, A. FALAH, MAHMOUD MOFID, S. GHIASI, and GH.A. TALEBI, “EFFECT OF CONTINUOUS, REPEATED AND INTERMITTENT PRESSURE ON THE BIOMECHANICAL AND HISTOLOGICAL CHARACTERISTICS OF GUINEA PIG SKIN,” IRANIAN JOURNAL OF BIOMEDICAL ENGINEERING, vol. 1, no. 3, pp. 215–225, 2007, [Online]. Available: https://sid.ir/paper/81642/en

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