Borm, K.J.* ; Vennekate, J.K.* ; Vagedes, J.* ; Islam, M.O.A.* ; Duma, M.N.* ; Loos, M.* ; Combs, S.E. ; Schiller, K.* ; Klusen, S.* ; Paepke, S.* ; Kiechle, M.B.* ; Paepke, D.*
     
    
        
A comprehensive prospective comparison of acute skin toxicity after hypofractionated and normofractionated radiation therapy in breast cancer.
    
    
        
    
    
        
        Cancers 13:5826 (2021)
    
    
    
      
      
	
	    The current study aims to determine whether hypofractionated radiotherapy (HF) leads to lower rates of acute radiodermatitis compared to conventional normofractionated radiotherapy (CF). A total of 166 patients with invasive breast cancer or DCIS were included in a prospective cohort study. Evaluation of acute radiodermatitis was obtained before radiotherapy, at the end of the treatment (T1), and 6 weeks after the treatment (T2) using CTCAE (v5.0) scores, the Skindex-16 questionnaire, and ultrasound measurement of the skin. CTCAE and Skindex-16 scores in the CF-group were significantly higher compared to the HF group indicating more pronounced side effects at the end of the treatment (CTCAE: CF-RT 1.0 (IQR: 0.0) vs. HF-RT 0.0 (0.25); p = 0.03; Skindex-16: CF: 20.8 (IQR: 25.8); HF: 8.3 (27.1); p = 0.04). At 6 weeks after the treatment, no significant differences between the two fractionation schemes were observed. Ultrasound based assessment showed that the skin thickness in the treated breast was higher compared to the healthy breast at all time-points. However, no significant difference between HF and CF was seen either at T1 or T2. The current study complements and confirms pre-existing evidence that HF leads to a lower degree of acute radiodermatitis and better patient reported outcome compared to CF at the end of treatment. This should be considered whenever fractionation of adjuvant breast cancer treatment is being dis-cussed.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
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        Keywords
        Breast Cancer ; Hypofractionation ; Organ-sparing ; Radiodermatitis ; Radiotherapy; Quality-of-life; Irradiation
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2021
    
 
    
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        2021
    
 
    
    
        ISSN (print) / ISBN
        2072-6694
    
 
    
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	    Volume: 13,  
	    Issue: 22,  
	    Pages: ,  
	    Article Number: 5826 
	    Supplement: ,  
	
    
 
    
        
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            MDPI
        
 
        
            Publishing Place
            St Alban-anlage 66, Ch-4052 Basel, Switzerland
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
     
    
        POF-Topic(s)
        30203 - Molecular Targets and Therapies
    
 
    
        Research field(s)
        Radiation Sciences
    
 
    
        PSP Element(s)
        G-501300-001
    
 
    
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        Erfassungsdatum
        2021-12-21