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Table 1 Patients characteristics

From: Salvage robotic SBRT for local prostate cancer recurrence after radiotherapy: preliminary results of the Oscar Lambret Center

Median age at relapse (range)

70 (58-82)

Initial disease

 T-Stage

T1: 7 (30.4%) T2: 8 (34.8%) T3: 7 (30.4%) NA: 1 (4.3%)

 Median PSA

10.38 ng/mL (2.34–57)

 Gleason

5: 1 (4.3%). 6: 5 (21.7%). 7: 13 (56.5%). 9 :1 (4.3%) NA: 3 (13%)

Prior RT modality

 External beam radiotherapy

19 (83%)

 Brachytherapy

4 (17%)

 Median dose of EBRT (Gy) (range)

75.6 (70–75.6)

 Residual treatment urinary or rectal toxicities

Yes : 11 (Grade 1 : 7. Grade 2 : 4) No = 12

 Median interval from prior RT to salvage (range)

65 months (28 to 150)

Relapse

 Biopsy at relapse

Yes: 19 (83%). No: 4 (17%)

 Unilateral positive biopsies

9 (47%)

 Bilateral positive biopies

10 (53%)

 Number of positive biopsies : median (range)

4 (1–13)

MRI

Yes: 23 (100%). No 0 (0%)

 Involvment on MRI

Unilateral: 12 (52.2%) Bilateral: 10 (43%) None: 1 (4%)

 Extracapsular invasion on MRI

11 (47%)

Choline PET scan

Yes: 21 (91.3%) No: 2 (8.7%)

Androgen deprivation therapy

Yes: 14 (61%) No: 9 (39.1%)