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Long-Term Recurrence of Nonmelanoma Skin Cancer after Topical Methylaminolevulinate Photodynamic Therapy in a Dermato-Oncology Department

dc.contributor.authorCabete, J
dc.contributor.authorRafael, M
dc.contributor.authorCravo, M
dc.contributor.authorMoura, C
dc.contributor.authorSachse, F
dc.contributor.authorPecegueiro, M
dc.date.accessioned2016-01-15T10:54:17Z
dc.date.available2016-01-15T10:54:17Z
dc.date.issued2015-12
dc.description.abstractBACKGROUND: Most available studies on the efficacy of topical photodynamic therapy focus on short-to medium-term results. Long-term data are scarce. OBJECTIVE: To evaluate the long-term efficacy of photodynamic therapy with topical methylaminolevulinate to treat Bowen's disease and basal cell carcinoma in the clinical practice setting of a dermato-oncology department. METHODS: The study included patients diagnosed with Bowen's disease or basal cell carcinoma, and who received photodynamic therapy from 2004 to 2008. Treatment protocol and clinical follow-up were standardized. The primary endpoint was clinically observed recurrence in a previous photodynamic therapy-treated area. Descriptive and survival analyses were performed. RESULTS: A total of 31 Bowen's disease lesions and 44 superficial basal cell carcinoma were treated, with a median follow-up of 43.5 months. Recurrence was observed in 14 Bowen's disease lesions (53.8%) and in 11 superficial basal cell carcinoma (33.3%). Significantly higher estimates for recurrence rates were found in patients with Bowen's disease (p=0.0036) or those aged under 58 years (p=0.039). The risk of recurrence was higher in patients with Bowen's disease than in those with superficial basal cell carcinoma and younger patients. CONCLUSIONS: Recurrence should be considered when choosing to treat non-melanoma skin cancer with photodynamic therapy. Younger age and Bowen's disease were independent predictors for long-term recurrence, suggesting the need to establish an extended period of follow-up for this subset of patients.pt_PT
dc.identifier.citationAn Bras Dermatol. 2015 Dec;90(6):846-50pt_PT
dc.identifier.doi10.1590/abd1806-4841.20154080pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/2357
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherScielopt_PT
dc.subjectHSAC DERpt_PT
dc.subjectAdministration, Cutaneouspt_PT
dc.subjectAge Factorspt_PT
dc.subjectAminolevulinic Acid/analogs & derivativespt_PT
dc.subjectAminolevulinic Acid/therapeutic use
dc.subjectBowen's Disease/drug therapy
dc.subjectCarcinoma, Basal Cell/drug therapy
dc.subjectFollow-Up Studies
dc.subjectNeoplasm Recurrence, Local
dc.subjectPhotochemotherapy/methods
dc.subjectPhotosensitizing Agents/therapeutic use
dc.subjectRetrospective Studies
dc.subjectRisk Assessment
dc.subjectSkin Neoplasms/drug therapy
dc.subjectStatistics, Nonparametric
dc.subjectTime Factors
dc.subjectTreatment Outcome
dc.titleLong-Term Recurrence of Nonmelanoma Skin Cancer after Topical Methylaminolevulinate Photodynamic Therapy in a Dermato-Oncology Departmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage850pt_PT
oaire.citation.startPage846pt_PT
oaire.citation.titleAnais Brasileiros de Dermatologiapt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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