525 Autologous Skin Cell Suspension May Enhance Healing of Burn Wounds and Skin Graft Donor Sites in Elderly Burn Patients

Abstract Introduction An autologous skin cell suspension (ASCS) spray containing keratinocytes, fibroblasts, and melanocytes can be processed from a small split thickness skin sample for use at the point-of-care in the operating room. ASCS have been shown to facilitate epidermal regeneration in large TBSA partial thickness burns with minimal donor site morbidity. We hypothesized that ASCS in conjunction with a 3:1 split thickness skin graft applied to burn wounds and ASCS alone applied to the donor site would facilitate healing in a 95 year-old burn patient with 12% TBSA deep partial and full thickness scald burns to the abdomen and bilateral thighs. To our knowledge, she is the oldest patient to undergo epidermal autografting with ASCS. Methods All burn wounds were tangentially excised in the standard fashion to healthy tissue. Split thickness (12/1000 inch) skin graft was harvested from the right lateral thigh, meshed 3:1, and applied to all wound beds. ASCS were prepared and sprayed on grafted sites and the donor site. All areas were dressed with Telfa clear and Xeroform with bacitracin. Dressings were initially changed every 2 days, and wounds were photographed on day 2, 4, 6, 8, 10, and 20. Results All burn wounds were deep partial thickness or full thickness. The right thigh donor site was completely healed by POD 10. 90% of the burn wounds had healed by POD 10. The area of deepest burn, an approximately 20 cm2area on the left medial thigh, was healed by POD 20. Conclusions We believe that ASCS enhanced the rate of re-epithelialization of burn wounds in a 95 year-old patient compared to our experience with skin grafting alone in this population. ASCS also promoted complete healing of the donor site by POD 10. This technology may have a role in decreasing healing time in the geriatric burn population. These findings are important for this population as longer lengths of stay are associated with delirium, hospital acquired infections, and deconditioning. This patient’s improved donor site healing also has broader implications as split thickness skin grafts are used widely for wound coverage in plastic surgery. Applicability of Research to Practice Demonstrates efficacy of ASCS in very elderly patients with moderate-sized deep burns and with skin graft donor sites.