INTRODUCTION: Split-thickness skin graft is one of the most commonly performed procedures in plastic and burn surgery, and effectively creates a secondary wound at risk for infection or delayed wound healing. The aim of this study was to assess the efficacy and safety of topical 0.1% timolol gel in promoting wound healing in split-thickness skin graft donor sites. METHODS: We designed a prospective case control study to evaluate the effects of 0.1% timolol gel in healing skin graft donor sites when compared to paraffin gauze. A total of 42 burn patients were treated with either daily dressings with 0.1% timolol gel (1 fingertip unit every 2 cm2) and paraffin gauzes (case group), or to dressings every 4 days with paraffin gauzes (control group). Healing time, infection rate and patient’s pain perception were assessed by a blinded physician. Costs were also evaluated in both groups. Vancouver Scar Scale (VSS) and patient satisfaction VAS were recorded at the 6 months follow up. RESULTS: A statistically significant improvement in terms of healing time was found in the timolol group (mean 6.4 days vs 12.7 days in the control group). The infection rate was the same. Significantly decreased pain perception was recorded in the case group. Total cost of the treatment was significantly higher in the case group. At the 6 months follow up VSS and patient VAS were significantly lower in the case group. CONCLUSION: The role of topical beta-blockers in promoting wound healing is currently emerging in the international literature.1,2 Various experimental approaches to optimize the healing of split-thickness skin graft donor sites have been described,3,4 including back-grafting,5 however, no clearly superior and easily applicable method has gained wide acceptance in daily practice. 0.1% timolol gel may represent a commercially available, safe and simple, painless and moderately expensive treatment for improving skin graft donor site healing. Reference Citations: 1. Ali A, Herndon DN, Mamachen A, et al. Propranolol attenuates hemorrhage and accelerates wound healing in severely burned adults. Crit Care. 2015; 19: 217. 2. Braun LR, Lamel SA, Richmond NA, Kirsner RS. Topical timolol for recalcitrant wounds. JAMA Dermatol. 2013; 149: 1400–1402. 3. Voineskos SH, Ayeni OA, McKnight L, Thoma A. Systematic review of skin graft donor-site dressings. Plast Reconstr Surg. 2009; 124: 298–306. 4. Dressings and Care of Skin Graft Sites: A Review of Clinical Evidence and Guidelines. Ottawa (ON): Canadian Agency for Drugs and Technologies in Health; 2013 Dec. 5. Goverman J, Kraft CT, Fagan S, Levi B. Back Grafting the Split-Thickness Skin Graft Donor Site. J Burn Care Res. 2017; 38: e443-e449.