What is GammaGraft?
GammaGraft is an irradiated human skin allograft that may be stored at
room temperature. Its main applications are as a temporary graft for treating
burns, chronic wounds, and partial and full thickness wounds.
GammaGraft is human skin allograft acquired from cadaveric donors.
Allograft skin is skin taken from the same species and is the ideal biological
skin graft when the patient’s own skin is not available for transplantation.
Allograft is self-adhering, renders the wound site pain free, and acts as a vapor
barrier that limits fluid and protein loss from the wound while preventing
infection. GammaGraft has both the epidermal and the dermal layers of human
skin which makes it more durable and effective as a vapor barrier than most
wound covers, especially some artificial skins, which lack a keratinocyte layer
(found in the epidermis).
The irradiation process that GammaGraft undergoes produces two key
advantages. The irradiation acts as a preservation and sterilization agent
significantly reducing any risk of viral transmission of disease and allowing it to
be stored at room temperature for up to two years. This is an added precaution
to eliminate viruses beyond the extensive serological testing done by the tissue
banks to ensure virus-free skin. In fact GammaGraft has been treated so as to
greatly reduce the threat of CMV (cytomegalovirus). It is therefore an ideal
dressing for transplant patients, HIV positive patients, and other people with
compromised immune systems who could be adversely affected by CMV.
The ability to store GammaGraft at room temperature for up to two
years makes GammaGraft readily available for use upon opening a foil pack.
Most biological dressings still require refrigeration and most human skin
allograft is cryogenically frozen and stored in liquid nitrogen. These dressings
require labor-intensive preparations such as thawing, cleansing, and rehydration
before applying to the patient. GammaGraft™ requires none of these time-
consuming processes before application. GammaGraft can be applied in a
clinical setting without incurring costly Operating Room time for application.
GammaGraft’s transportability, ease of storage and use, and its effective
coverage agents make it a cost-effective and efficient means by which to treat
many wounds.
