answered question

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1) Are you a radiation oncologist who currently treats prostate cancer?

Answer Options Response

Percent Response Count

Yes 79.7% 1064

No 20.3% 271

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2) Where is your practice currently located?

Answer Options Response Percent Response

Count

United States 69.3% 729

Canada 4.8% 50

Europe 11.9% 125

Latin America 4.4% 46

Asia 9.0% 95

Africa 0.7% 7

answered question 1052 skipped question 283

3) In what type of facility do you practice? [SELECT ALL APPLICABLE]

University based health system 37.5% 395

Government health facility 12.6% 133

Private practice 56.7% 597

skipped question 283

4) How many years have you been in practice?

I am currently a resident 7.7% 81

1 - 5 15.7% 165

6 - 10 11.0% 116

> 10 65.6% 690

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5) Do you offer Salvage Radiotherapy for patients with a RISING PSA following prostatectomy?

Yes 99.3% 1045

No 0.7% 7

6) In the absence of high risk pathological features (e.g. negative margin, negative ECE, negative SV), at what LOWEST PSA value would you initiate Post-Prostatectomy Salvage RT?

Percent

Response Count

<= 0.4 ng/ml 62.6% 625

0.5 - 0.6 ng/ml 22.5% 225

0.7 - 0.8 ng/ml 2.8% 28

0.9 - 1.0 ng/ml 2.3% 23

I do not treat until PSA is >1.0 ng/ml 9.8% 98

7) At what UPPER PSA value do you NO LONGER recommend Post-Prostatectomy Salvage RT, despite a negative metastatic workup?

1.0 ng/ml 1.7% 17

1.1 - 2.0 ng/ml 2.7% 27

2.1 - 3.0 ng/ml 7.3% 73

3.1 - 5.0 ng/ml 7.6% 76

5.1 - 10 ng/ml 9.6% 96

10.1 - 20 ng/ml 15.3% 153

I have no upper threshold for withholding RT 55.8% 557

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8) Which of the following do you ROUTINELY REQUIRE to rule out metastatic disease before Post-Prostatectomy Salvage RT? [SELECT ALL APPLICABLE]

Ultrasound 3.5% 35

CT of pelvis 60.2% 601

MRI of pelvis 27.8% 278

Biopsy of anastamosis 3.3% 33

Bone scan 79.5% 794

Prostascint 7.2% 72

PET Scan 7.9% 79

I do not have any specific requirements 10.7% 107

Other (please specify) 11.5% 115

9) Which of the following techniques do you currently use for Post-Prostatectomy Salvage RT?

[SELECT ALL APPLICABLE]

2D planning 1.2% 12

3D planning 41.3% 413

IMRT (including Tomotherapy) 78.4% 783

IGRT 46.1% 461

Brachytherapy 1.2% 12

10) Which CONTRAST agents do you use when planning Post-Prostatectomy Salvage RT?

Urethral 28.7% 287

Rectal 12.2% 122

Small bowel 10.8% 108

Intravenous 16.5% 165

I rarely/never use any contrast for Post-Prostatectomy Salvage

RT planning 52.2% 521

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11) What CONTOURING guidelines have you referenced for Post-Prostatectomy Salvage RT planning? [SELECT ALL APPLICABLE]

RTOG 77.9% 778

EORTC 14.2% 142

Australia/New Zealand (Sidhom, et. al.) 6.3% 63

CARO (Wiltshire, et. al.) 5.4% 54

None of the above 12.4% 124

12) What is the HIGHEST dose you prescribe to the prostsate bed, in the ABSENCE of a gross relapse?

I never treat above 60 Gy 1.5% 15

60.1 - 64.5 Gy 3.7% 37

64.6 - 66.6 Gy 34.9% 349

66.7 - 68.4 Gy 19.0% 190

68.5 - 70.2 Gy 32.9% 329

>70.2 Gy 7.9% 79

13) Do you EVER prescribe >2 Gy per fraction for Post-Prostatectomy Salvage RT?

Yes 7.2% 72

No 92.8% 927

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14) How OFTEN do you treat the pelvic lymph nodes during Post-Prostatectomy Salvage RT?

Always 4.9% 49

Most of the time 10.4% 104

Only some of the time 59.0% 589

Never 25.7% 257

15) Do you use ANY of these factors when deciding to treat the lymph nodes (when not involved)?

Gross relapse 49.7% 342

Post-prostatectomy PSA relapse value 45.6% 314

Post-prostatectomy PSA kinetics 41.3% 284

Pre-Prostatectomy PSA value 40.6% 279

Gleason score 76.6% 527

Seminal vesicle involvement 60.0% 413

Extracapsular extension 42.4% 292

Surgical margins 29.4% 202

16) Do you use any of the following risk prediction tools to decide when to treat lymph nodes?

Roach Formula 38.2% 260

Stephenson nomogram 7.2% 49

D'Amico risk stratification 20.3% 138

MSKCC/Kattan postoperative nomogram 27.2% 185

I do not use any of the above 36.3% 247

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17) What is the HIGHEST anatomic level you target when treating PELVIC NODES?

Top of SI joint (common iliac bifurcation) 57.6% 423

Middle of SI joint (top of external/internal iliacs) 28.8% 212

Bottom of SI joint 13.6% 100

18) What is the HIGHEST dose you prescribe to the PELVIC NODES when NOT involved?

<45 Gy 8.8% 65

45 - 49 Gy 68.0% 500

50 - 53 Gy 20.3% 149

>53 Gy 2.9% 21

19) Do you ever use androgen deprivation with Post-Prostatectomy Salvage RT?

Yes 73.0% 724

No 27.0% 268

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20) Where is androgen deprivation usually administered to your patients? [SELECT ALL APPLICABLE]

Radiation oncology office 33.2% 240

Urology office 72.7% 525

Medical oncology office 24.2% 175

Primary care physician office 6.5% 47

21) What DURATION of androgen deprivation do you recommend when combined with Post- Prostatectomy Salvage RT? [SELECT ALL APPLICABLE]

1 - 5 months 17.9% 129

6 - 11 months 51.7% 373

1 - 2 years 43.5% 314

3 years 9.0% 65

Indefinite 4.7% 34