Objective: Treatment of wounds difficult to heal concerns 50% of the elderly population in
Italy and is therefore a relevant social burden. The present study shows how the treatment with autologous
leuco-platelets reduces the healing time of wounds improving the functional recovery.
Patients and Methods: Patients (n=100) with ulcers of the legs were divided in two groups: 1) 50 patients
treated with conventional therapies; 2) 50 patients treated with autologous leuco-platelet concentrate
(LPC) and hyaluronic acid (HIAFF, Hyalofill-F® ) as a scaffold.
Results: After 2 months, a 49% reduction in wound area was observed in the second group and in
about 65% wound reduction was achieved in 15 days (4 LPC dressings). In contrast, patients treated by
conventional therapies, showed a longer healing time and a greater percentage of failures. Morphometric
analysis of biopsy samples obtained from the edge as well as from the bottom of the lesions obtained
from the LPC group, detected an abundant presence of neoformed capillaries, characterized by a
cubic, "reactive endothelium", close to the site of LPC infiltration.
Conclusion: These results suggest that healing was promoted not only by limiting bacterial infections
but also by the release of chemotactic and proangiogenic factors from leukocytes and platelets, improving
the neoformation of capillaries.