PMID- 18031503 OWN - NLM STAT- MEDLINE DCOM- 20080506 LR - 20131121 IS - 1468-3083 (Electronic) IS - 0926-9959 (Linking) VI - 22 IP - 4 DP - 2008 Apr TI - Fractionated aminolevulinic acid-photodynamic therapy provides additional evidence for the use of PDT for non-melanoma skin cancer. PG - 426-30 AB - BACKGROUND: Photodynamic therapy (PDT) is an accepted treatment for superficial basal cel carcinoma (sBCC) and Bowens disease. In Rotterdam, extensive preclinical research has lead to an optimized twofold illumination scheme for aminolevulinic acid-PDT (ALA-PDT). OBJECTIVE: To provide additional evidence of ALA-PDT for sBCC, Bowens disease (BD), nodular BCC (nBCC) and actinic keratosis (AK) using a 2-fold illumination scheme after a single application of ALA. METHODS: Five hundred fifty-two lesions (430 sBCC, 20 nBCC, 32 BD, 70 AK) were treated with ALA-PDT using a twofold illumination scheme. ALA was applied topically for 4 h. Lesions were treated with two light fractions of 20 and 80 J/cm(2) separated by a 2-h dark interval. RESULTS: After a minimum follow-up of 12 months, in average follow-up of 2 years, an overall complete response of 95% was seen for all lesions. For sBCC, the complete response at 2 years was 97% (for AK 98%, for BD 84% and for nBCC 80% after 2 years). A sub-analysis of the results of lesions larger than 2 cm showed CR at 2 years of 89% for all lesions (n = 57). Cosmetic outcome was good to excellent in 95% of the treated lesions. CONCLUSION: ALA-PDT using a twofold illumination scheme of 20 plus 80 J/cm(2) separated by a 2-h dark interval leads to high complete response rates at 2 years and can be regarded as an evidence-based treatment modality for superficial growing non-melanoma skin cancer and the (pre)malignant AK. The Rotterdam fractionated approach should be included in future guidelines. FAU - de Haas, E R M AU - de Haas ER AD - Department of Dermatology, Erasmus MC, Rotterdam, The Netherlands. e.r.m.dehaas@erasmusmc.nl FAU - de Vijlder, H C AU - de Vijlder HC FAU - Sterenborg, H J C M AU - Sterenborg HJ FAU - Neumann, H A M AU - Neumann HA FAU - Robinson, D J AU - Robinson DJ LA - eng PT - Journal Article DEP - 20071119 PL - England TA - J Eur Acad Dermatol Venereol JT - Journal of the European Academy of Dermatology and Venereology : JEADV JID - 9216037 RN - 0 (Photosensitizing Agents) RN - 88755TAZ87 (Aminolevulinic Acid) SB - IM CIN - J Eur Acad Dermatol Venereol. 2009 May;23(5):571-2. PMID: 19415805 MH - Adult MH - Aged MH - Aged, 80 and over MH - Aminolevulinic Acid/*therapeutic use MH - Bowen's Disease/*drug therapy MH - Carcinoma, Basal Cell/*drug therapy MH - Female MH - Humans MH - Keratosis/*drug therapy MH - Male MH - Middle Aged MH - Photochemotherapy/*methods MH - Photosensitizing Agents/*therapeutic use MH - Skin Neoplasms/*drug therapy MH - Treatment Outcome EDAT- 2007/11/23 09:00 MHDA- 2008/05/07 09:00 CRDT- 2007/11/23 09:00 PHST- 2007/11/23 09:00 [pubmed] PHST- 2008/05/07 09:00 [medline] PHST- 2007/11/23 09:00 [entrez] AID - JDV2445 [pii] AID - 10.1111/j.1468-3083.2007.02445.x [doi] PST - ppublish SO - J Eur Acad Dermatol Venereol. 2008 Apr;22(4):426-30. doi: 10.1111/j.1468-3083.2007.02445.x. Epub 2007 Nov 19.