Table 4 Comparison of acute GI and GU toxicity rates 1 month following 5-fraction prostate SBRT. A perirectal spacer was not used in the earlier series shown below
Study | Â | Current series | Madsen (IJROBP 2006) | Loblaw (Rad Oncol 2013) | Katz (BMC Urol 2010) | Chen (BMC Rad Onc 2013) | Park (BMC Rad Onc 2018) | McBride (Cancer 2011) |
|---|---|---|---|---|---|---|---|---|
Dose (Gy) | Â | 36.25 | 33.5 | 35 | 35-36.25 | 35-36.25 | 35-36.25 | 36.25-37.5 |
Grade (GI) | n | 50 | 39 | 84 | 304 | 100 | 88 | 42 |
 0 |  | 88% | 61% | 23% | 21% | 60% | 58% | 62% |
 1 |  | 8% | 26% | 67% | 74% | 35% | 36% | 31% |
 2 |  | 4% | 13% | 10% | 5% | 5% | 6% | 7% |
Grade (GU) | ||||||||
 0 |  | 44% | 49% | 9% | 20% | 29% | 42% | 21% |
 1 |  | 26% | 28% | 71% | 75% | 36% | 49% | 60% |
 2 |  | 30% | 21% | 19% | 5% | 35% | 9% | 19% |
 3 |  | 0% | 2% | 1% | 0% | 0% | 0% | 0% |