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Table 2 Postoperative course

From: Midterm prognosis and surgical implication for clival chordomas after extended transsphenoidal tumor removal and gamma knife radiosurgery

Case

Removal rate (%)

Tumor volume at GK (ml)

Marginal dose (Gy)

Isodose (%)

PF period (months)

Overall survival (months)

Treatment and clinical course

1

100

6.6, 3.1,1.0, 1.1, 7.7, 3.2

14, 14, 15, 15, 14, 5 × 5

50, 50, 50, 50, 50, 50

12

186

TS - GK × 6 -

2

100

N/A

N/A

N/A

169

169

TS -

3

75

1.2

20

90

51

224

TS – GK – GK – GK - TS - GK – TC - CK died from disease progression to sarcoma

4

100

7.3, 17.6, 27.8

14, 14, 15

50, 50, 50

48

62

TS - GK - GK - TS - TS - GK died from epistaxis

5

90

2.7

16

50

6

165

TS – TS – GK

6

70

13.0, 3.2

13, 12

50

31

100

TS - FR(50Gy) - TS - GK - TS - GK died from brain stem invasion

7

100

N/A

N/A

N/A

69

150

TS -

8

100

N/A

N/A

N/A

152

152

TS -

9

100

N/A

N/A

N/A

138

138

TS -

10

100

1.0

18

52

95

130

TS – GK

11

100

2.3

16

55

30

127

TS – GK

12

95

4.5

17

50

38

38

TS – GK died from lung cancer

13

100

N/A

N/A

N/A

115

115

TS -

14

80

14.5

16

50

21

62

TS – GK

15

95

1.7

16

50

24

60

TS – GK

16

73

N/A

N/A

N/A

15

51

TS -

17

91

17.6

15

50

19

45

TS – GK

18

95

N/A

N/A

N/A

27

27

TS -

19

100

N/A

N/A

N/A

27

27

TS -

  1. PF progression free, GK gamma knife, TC transcranial surgery, TS transsphenoidal surgery, CK cyber knife
  2. N/A not applicable