BIOLOGICAL DRESSING
SKIN TEMPORARY SUBSTITUTE
Heterologous Graft
FROG'S SKIN
 

An alternative the burn treatment is the use of the skin of frog species Rana catesbiana Shaw that can be used with temporary covering.

It is Brazilian technology. The skin can be maintained fresh and conserved with antibiotics or dehydrated and sterilized with etileno oxide (Figure 1).

Figure 1: Frog's skin - dehydrated and sterilized with etileno oxide.

by Luiz Claudio Candido, MD

Autologous Graft: from the same person (autograft).

Homologous Graft: it is of the same species and temporary character (homograft).

Heterologous Graft (xenograft): from different species, as pig or frog. Is of temporary character.

It can be used as temporary covering in injuries, such as:
- burn of second degree, 
- area donor of skin graft, 
- wound with granulation tissue. 

- flog's protein hipersensibility.

- frozen skin: first to use defrost the skin with physiologic saline solution (0,9%) so that it reacquires its normal texture. 
- dehydrated skin: first to use rehydrated the skin with physiologic saline solution (0,9%) so that it reacquires its normal texture.