Experimental Third Degree Frostbite in Hanford Miniature Swine

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Abstract:

Third degree frostbite was produced in five Hanford Miniature Swine exposed to chilled air. Biopsies were taken. The 200 slides were evaluated microscopically epithelial necrosis and regeneration were recorded as absent or present. Vascular degeneration, thrombosis, sweat gland injury, and subcutis injury were ranked. Epithelial necrosis andor regeneration were seen consistently, but not until 1-2 weeks after injury. Vascular injury was absent for the 1 minute freeze, but was seen by 48 hours for the 5, 10, and 20 minute freezes. Sweat gland injury was seen by 12 hours for all freezes except the 1 minute freeze. Subcutis changes were seen 1-2 weeks after injury.

Author(s):
Schoning, Polly ; Hamlet, Murray P.
Author Organization(s):
ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
Descriptive Note:
Technical rept.
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USARIEM-T-24-87
Project Number(s):
3E162777A879
Monitor Series:
USARIEM
 Subject Terms
Joint Capability Areas:
JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_5_Command and Control; JCA_1.2.5_Lessons Learned; JCA_1.2.7_Experimentation
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*FROSTBITE, VASCULAR DISEASES, NECROSIS, BIOPSY, THROMBOSIS, COLD WEATHER TESTS, VASCULAR CONGESTION, SWEAT GLANDS, FREEZING, SWINE
Field(s)/Group(s):
Medicine and Medical Research, Stress Physiology
Keyword(s):
THIRD DEGREE FROSTBITE, AS879, PE62777A, WU121
Report Date:
1987 Jul 06