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- W1969707978 abstract "Purpose We examined the rate of acute skin toxicity within a prospectively managed database of patients treated for early-stage non–small-cell lung cancer (NSCLC) and investigated factors that might predict skin toxicity. Methods From May 2006 through January 2008, 50 patients with Stage I NSCLC were treated at Memorial Sloan-Kettering Cancer Center with 60 Gy in three fractions or 44–48 Gy in four fractions. Patients were treated with multiple coplanar beams (3–7, median 4) with a 6 MV linac using intensity-modulated radiotherapy (IMRT) and dynamic multileaf collimation. Toxicity grading was performed and based on the National Cancer Institute Common Terminology Criteria for Adverse Effects. Factors associated with Grade 2 or higher acute skin reactions were calculated by Fisher's exact test. Results After a minimum 3 months of follow-up, 19 patients (38%) developed Grade 1, 4 patients (8%) Grade 2, 2 patients (4%) Grade 3, and 1 patient Grade 4 acute skin toxicity. Factors associated with Grade 2 or higher acute skin toxicity included using only 3 beams (p = 0.0007), distance from the tumor to the posterior chest wall skin of less than 5 cm (p = 0.006), and a maximum skin dose of 50% or higher of the prescribed dose (p = 0.02). Conclusions SBRT can be associated with significant skin toxicity. One must consider the skin dose when evaluating the treatment plan and consider the bolus effect of immobilization devices. We examined the rate of acute skin toxicity within a prospectively managed database of patients treated for early-stage non–small-cell lung cancer (NSCLC) and investigated factors that might predict skin toxicity. From May 2006 through January 2008, 50 patients with Stage I NSCLC were treated at Memorial Sloan-Kettering Cancer Center with 60 Gy in three fractions or 44–48 Gy in four fractions. Patients were treated with multiple coplanar beams (3–7, median 4) with a 6 MV linac using intensity-modulated radiotherapy (IMRT) and dynamic multileaf collimation. Toxicity grading was performed and based on the National Cancer Institute Common Terminology Criteria for Adverse Effects. Factors associated with Grade 2 or higher acute skin reactions were calculated by Fisher's exact test. After a minimum 3 months of follow-up, 19 patients (38%) developed Grade 1, 4 patients (8%) Grade 2, 2 patients (4%) Grade 3, and 1 patient Grade 4 acute skin toxicity. Factors associated with Grade 2 or higher acute skin toxicity included using only 3 beams (p = 0.0007), distance from the tumor to the posterior chest wall skin of less than 5 cm (p = 0.006), and a maximum skin dose of 50% or higher of the prescribed dose (p = 0.02). SBRT can be associated with significant skin toxicity. One must consider the skin dose when evaluating the treatment plan and consider the bolus effect of immobilization devices." @default.
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- W1969707978 date "2008-12-01" @default.
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- W1969707978 title "Acute Skin Toxicity Following Stereotactic Body Radiation Therapy for Stage I Non–Small-Cell Lung Cancer: Who's at Risk?" @default.
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- W1969707978 doi "https://doi.org/10.1016/j.ijrobp.2008.08.036" @default.
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