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Table 2 Frequency of adverse event by recommended dose category

From: High dose-rate tandem and ovoid brachytherapy in cervical cancer: dosimetric predictors of adverse events

 

Bladder total EQD2 D2cc

All

0 to 80

80 to 90

>  90

n

%

n

%

n

%

n

%

GU Toxicity Grade

24

85.7

5

62.5

14

70.0

43

76.8

 0

 1

2

7.1

1

12.5

1

5.0

4

7.1

 2

1

3.6

1

12.5

3

15.0

5

8.9

 3

0

0.0

1

12.5

2

10.0

3

5.4

 4

1

3.6

0

0.0

0

0.0

1

1.8

All

28

100.0

8

100.0

20

100.0

56

100.0

 

Rectal total EQD2 D2cc

All

0 to 65

65 to 75

>  75

n

%

n

%

n

%

n

%

GI Toxicity Grade

8

72.7

17

85.0

16

64.0

41

73.2

 0

 1

0

0.0

0

0.0

4

16.0

4

7.1

 2

1

9.1

0

0.0

2

8.0

3

5.4

 3

1

9.1

3

15.0

3

12.0

7

12.5

 4

1

9.1

0

0.0

0

0.0

1

1.8

All

11

100.0

20

100.0

25

100.0

56

100.0

 

Sigmoid total EQD2 D2cc

All

0 to 65

65 to 75

>  75

n

%

n

%

n

%

n

%

GI Toxicity Grade

20

90.9

11

57.9

10

66.7

41

73.2

 0

 1

1

4.5

1

5.3

2

13.3

4

7.1

 2

0

0.0

2

10.5

1

6.7

3

5.4

 3

1

4.5

5

26.3

1

6.7

7

12.5

 4

0

0.0

0

0.0

1

6.7

1

1.8

All

22

100.0

19

100.0

15

100.0

56

100.0

  1. GU Genitorinary, GI Gastrointestinal, EQD2 Equivalent dose in 2 Gy fractions assuming α/β = 3 Gy, D2cc the most irradiated 2 cm3 of normal tissue volume