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Lokala kylskador

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Patofysiologi<br />

• Kyla ger initialt vasokonstriktion<br />

• Sedan 4-5 min vasodilatation<br />

• Blodet shuntas förbi distala kapillärer<br />

• Isbildning extracellulärt<br />

• Ökat osmotiskt tryck med dehydrering<br />

ic<br />

• Cellmembranskada<br />

• Försämrad mikrocirkulation

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