Skip to main content

Table 1 Characteristics of patients treated by stereotactic reirradiation using single and multiple fractions and for local failures of nasopharyngeal carcinoma

From: Comparison of single versus fractionated dose of stereotactic radiotherapy for salvaging local failures of nasopharyngeal carcinoma: a matched-cohort analysis

  Stereotactic radiotherapy with single fraction
(n = 43)
Stereotactic radiotherapy with multiple fractions
(n = 43)
All
(n = 86)
Gender    
   Male 32 (74%) 35 (81%) 67 (78%)
   Female 11 (26%) 8 (19%) 19 (22%)
Age    
   ≤ 45 21 (49%) 21 (49%) 42 (49%)
   > 45 22 (51%) 22 (51%) 44 (51%)
   median (range)/years 46 (32–84) 46 (18–69) 46 (18–84)
Type of failure    
   Persistent disease 19 (44%) 19 (44%) 38 (44%)
   Recurrent disease 24 (56%) 24 (56%) 48 (56%)
Retreatment T stage    
   rT1 25 (58%) 23 (54%) 48 (56%)
   rT2 5 (12%) 7 (16%) 12 (14%)
   rT3 9 (21%) 6 (14%) 15 (17%)
   rT4 4 (9%) 7 (16%) 11 (13%)
Time from 1st course of radiotherapy to reirradiation    
   ≤ 12 months 23 (53%) 24 (56%) 47 (55%)
   > 12 – 24 monhts 3 (7%) 8 (18%) 11 (13%)
   > 24 – 48 months 6 (14%) 6 (14%) 12 (14%)
   > 48 months 11 (26%) 5 (12%) 16 (18%)
   median (range)/months 10 (3 – 197) 10 (3 – 107) 10 (3 – 197)
Tumor volume    
   ≤ 5 cc 21 (49%) 21 (49%) 42 (49%)
   > 5 – 10 cc 13 (30%) 13 (30%) 26 (30%)
   > 10 cc 9 (21%) 9 (21%) 18 (21%)
   median (range)/cc 5.1 (1.3 – 30.7) 5.6 (0.8 – 24.7) 5.2 (0.8 – 30.7)