Sequential use of PDT and imiquimod cream is of significant benefit for the treatment of AC. Further studies are needed in order to confirm the improved outcome using the combination treatment, to clarify the involved mechanisms and to optimize the therapeutic protocol.
According to our observations a fluence rate between 25 and 50 mW/cm2 is effective and better tolerated by patients treated with topical 5-ALA PDT for AKs.
Our results demonstrate that higher responses are achieved with fractionated PDT compared with single illumination PDT. The study data indicate that fewer treatment sessions may be needed with fractionated PDT increasing that way the comfort of the patient regarding number of visits, treatment cost and treatment-related downtime.
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