PURPOSE: To show radiation dose-response relationships for recurrence of keloid and pterygium after radiotherapy following surgery. METHODS AND MATERIALS: Using PubMed, we performed a retrospective review of articles reporting incidences and/or dose-response relationships for recurrence of keloid and pterygium after radiotherapy following surgery. The irradiation regimens identified were normalized by use of the linear-quadratic model; biologically effective doses (BEDs) were calculated. RESULTS: For keloid recurrence after radiotherapy following keloid removal, with either teletherapy or brachytherapy, the recurrence rate after having delivered a BED greater than 30 Gy is less than 10%. For pterygium recurrence after bare sclera surgery and (90)Sr beta-irradiation, a BED of about 30 Gy seems to be sufficient also to reduce the recurrence rate to less than 10%. CONCLUSIONS: Most of the doses in the radiotherapy schemes used for prevention of keloid recurrence after surgery are too low. In contrast, the doses applied in most regimens to prevent pterygium recurrence are too high. A scheme with a BED of 30 to 40 Gy seems to be sufficient to prevent recurrences of keloid as well as pterygium.
PURPOSE: To show radiation dose-response relationships for recurrence of keloid and pterygium after radiotherapy following surgery. METHODS AND MATERIALS: Using PubMed, we performed a retrospective review of articles reporting incidences and/or dose-response relationships for recurrence of keloid and pterygium after radiotherapy following surgery. The irradiation regimens identified were normalized by use of the linear-quadratic model; biologically effective doses (BEDs) were calculated. RESULTS: For keloid recurrence after radiotherapy following keloid removal, with either teletherapy or brachytherapy, the recurrence rate after having delivered a BED greater than 30 Gy is less than 10%. For pterygium recurrence after bare sclera surgery and (90)Sr beta-irradiation, a BED of about 30 Gy seems to be sufficient also to reduce the recurrence rate to less than 10%. CONCLUSIONS: Most of the doses in the radiotherapy schemes used for prevention of keloid recurrence after surgery are too low. In contrast, the doses applied in most regimens to prevent pterygium recurrence are too high. A scheme with a BED of 30 to 40 Gy seems to be sufficient to prevent recurrences of keloid as well as pterygium.
Authors: Mark S Nestor; Brian Berman; David Goldberg; Armand B Cognetta; Michael Gold; William Roth; Clay J Cockerell; Brad Glick Journal: J Clin Aesthet Dermatol Date: 2019-02-01
Authors: Eveline Bijlard; Reinier Timman; Gerda M Verduijn; Frank B Niessen; Johan W van Neck; Jan J V Busschbach; Marc A M Mureau Journal: Trials Date: 2013-12-19 Impact factor: 2.279
Authors: Michiel C E van Leeuwen; Suzanne C Stokmans; Anne Eva J Bulstra; Otto W M Meijer; Martijn W Heymans; Johannes C F Ket; Marco J P F Ritt; Paul A M van Leeuwen; Frank B Niessen Journal: Plast Reconstr Surg Glob Open Date: 2015-08-10
Authors: Silvia Sancilio; Silvio Di Staso; Stefano Sebastiani; Lucia Centurione; Nick Di Girolamo; Marco Ciancaglini; Roberta Di Pietro Journal: Biomed Res Int Date: 2017-12-17 Impact factor: 3.411