University Health Network, University of Toronto, Department of Urology. Toronto, ON.
Curr Oncol. 2010 Sep;17 Suppl 2(Suppl 2):S25-32. doi: 10.3747/co.v17i0.705.
Men with high-risk localized prostate cancer (PCa) remain a challenge for clinicians. Until recently, surgery was not the preferred approach, in part because risk of subclinical metastatic disease, elevated rates of positive surgical margins, absence of randomized studies, and suboptimal cancer control did not justify the morbidity of surgery. No randomized data comparing surgery with radiation therapy are yet available. Data for and comparisons between treatment options should therefore be analyzed with extreme caution.When selecting the best treatment for patients with clinically localized high-risk PCa, considerations should include the life expectancy of the patient, the natural history of PCa, the curability of the disease, and the morbidity of treatment. High-grade PCa managed with noncurative intent greatly reduces life expectancy, but overall, it must also be remembered that radical prostatectomy (RP) and radiotherapy (RT) appear to have similar effects on quality of life. In this population, RP necessitates an extended pelvic lymph node dissection (PLND), but in selected cases, nerve-sparing is a therapeutic possibility and may offer a significant advantage over rt in terms of local control and-although absolutely not yet proved-maybe even in survival. One clear advantage is the ease of administering adjuvant or salvage external-beam rt (EBRT) after rp; conversely, salvage rp after failed EBRT is an exceedingly difficult surgery, with major complications. Surgery therefore has its place, but must be considered in the context of multimodality treatment and the risk of micrometastatic disease. Awaited trial results will help to further refine management in this group of patients.
对于临床医生来说,患有高危局限性前列腺癌(PCa)的男性仍然是一个挑战。直到最近,手术都不是首选方法,部分原因是存在亚临床转移性疾病的风险、阳性手术切缘率升高、缺乏随机研究以及癌症控制效果不理想,这使得手术的发病率无法得到证明。目前尚无比较手术与放疗的随机数据。因此,在分析治疗选择的数据和比较时应格外谨慎。
在为患有临床局限性高危 PCa 的患者选择最佳治疗方法时,应考虑患者的预期寿命、PCa 的自然病史、疾病的可治愈性以及治疗的发病率。非治愈性意图治疗的高级别 PCa 会大大降低预期寿命,但总的来说,还必须记住,根治性前列腺切除术(RP)和放疗(RT)似乎对生活质量有相似的影响。在这种人群中,RP 需要进行广泛的盆腔淋巴结清扫术(PLND),但在某些情况下,神经保留是一种治疗可能性,并且在局部控制方面可能具有明显优势,尽管目前还没有得到绝对证实,但在生存方面可能也有优势。一个明显的优势是在 RP 后很容易进行辅助或挽救性外照射放疗(EBRT);相反,在 EBRT 失败后进行挽救性 RP 是一种极其困难的手术,并发症较多。因此,手术有其地位,但必须在多模式治疗和微转移疾病的风险背景下考虑。预期的试验结果将有助于进一步完善这组患者的治疗方法。