Effects of electrical stimulation on wound healing were studied in an extensive clinical study, which lead to routine use of electrical stimulation as a therapeutic tool for treatment of various types of chronic wounds at the Institute for Rehabilitation of the Republic of Slovenia (Fig. 1). To date, 262 patients with 390 chronic wounds participated in the controlled study involving four different treatment modalities (Fig. 2). The expected time to complete wound closure has to be estimated as soon as possible to help formulate appropriate management, reduce the cost and orient resources to the individuals with poor prognosis. We have shown that periodical assessments of wound extent can be combined with a mathematical model of healing dynamics and patient/wound characteristics to accurately predict time to wound closure in only three weeks. A web-based application for data collection and application for such prediction is now in regular use at the Institute for Rehabilitation.