Bagshaw M A
Int J Radiat Oncol Biol Phys. 1986 Oct;12(10):1721-7. doi: 10.1016/0360-3016(86)90311-1.
In summary, 5-, 10-, and 15-year actuarial survival can be achieved in 81, 60, and 35% of patients with disease limited to the prostate and in 61, 36, and 18% of those with extracapsular extension. In various subgroups of patients with nodular disease who were selected by the same criteria applied in the selection for surgical resection, survival of 60% can be achieved. Conversely, local control may not be achieved following irradiation because of cell survival within the target volume. More sophisticated boost therapy using interstitial implants, high energy particles, radiosensitizers, and/or hyperthermia may improve local control and hence longer term survival. Local control may not be achieved following surgical resection because of transection of tumor at the surgical margin. Case selection for surgery might be improved by pre-operative transrectal ultrasonography or MRI examination. In situations in which pathologic examination demonstrates frank tumor transection, local control still may be achieved by prompt and judicious salvage by X-ray therapy.
总之,疾病局限于前列腺的患者中,5年、10年和15年精算生存率分别可达81%、60%和35%;有包膜外侵犯的患者中,这三个生存率分别为61%、36%和18%。在按照与手术切除选择相同标准选出的结节性疾病患者的各个亚组中,生存率可达60%。相反,由于靶区内细胞存活,放疗后可能无法实现局部控制。使用组织间植入、高能粒子、放射增敏剂和/或热疗等更复杂的强化治疗可能会改善局部控制,从而提高长期生存率。由于手术切缘肿瘤横断,手术切除后可能无法实现局部控制。术前经直肠超声检查或MRI检查可能会改善手术病例的选择。在病理检查显示有明显肿瘤横断的情况下,通过及时、明智地采用X线治疗进行挽救,仍可能实现局部控制。