Sugarbaker Paul H
Program in Peritoneal Surface Malignancy, Washington Cancer Institute, Washington, DC 20007, USA.
J Clin Med. 2024 Apr 12;13(8):2238. doi: 10.3390/jcm13082238.
BACKGROUND: Patients with colon cancer may present at multiple different stages of the disease process. Many patients can be cured of colon cancer as a result of a simple surgical procedure usually performed by minimally invasive techniques. However, there are a variable number of patients, estimated at approximately 10%, who have a more advanced disease. If these patients are treated by the current conventional standard of care, the likelihood for treatment failure is extremely high. METHODS: These are not patients with known disseminated disease but patients who are at high risk of recurrent disease unless special treatments are initiated preoperatively and intraoperatively. The identification of these patients is by (1) a high-quality CT scan, (2) tumor markers found preoperatively, (3) colonoscopic findings, and (4) symptoms. RESULTS: Patients identified as being at high risk require special preoperative treatments which include neoadjuvant chemotherapy. Intraoperative chemotherapy with HIPEC should occur as part of the treatment if peritoneal metastases are documented by biopsy. In the operating room, a thorough exploration of all possible occult peritoneal spaces for metastatic disease needs to be performed. A modified cytoreductive surgical procedure along with a colon resection is performed in order to minimize sites of occult peritoneal metastases. This includes the greater omentum, ovaries, and tubes in postmenopausal women. Peritonectomy is used to create a shroud around the tumor so that all peritoneum that has been in direct contact with the tumor surface is resected and is used as a barrier against tumor cell dissemination in the process of colon cancer resection. If peritoneal metastases are visualized at any site, HIPEC should be included as part of the treatment package. CONCLUSIONS: I am convinced that patients at high risk of recurrence will have an improved outcome with proper preoperative evaluation, preoperative neoadjuvant chemotherapy, and a revised intraoperative management strategy.
背景:结肠癌患者可能处于疾病进程的多个不同阶段。许多患者可通过通常采用微创技术进行的简单外科手术治愈结肠癌。然而,有数量不等的患者,估计约为10%,患有更晚期的疾病。如果按照当前的传统标准治疗这些患者,治疗失败的可能性极高。 方法:这些患者并非已知有播散性疾病的患者,而是除非术前和术中开始特殊治疗否则有高复发风险的患者。通过以下方式识别这些患者:(1)高质量CT扫描,(2)术前发现的肿瘤标志物,(3)结肠镜检查结果,以及(4)症状。 结果:被确定为高风险的患者需要特殊的术前治疗,包括新辅助化疗。如果活检证实有腹膜转移,术中应进行腹腔内热灌注化疗(HIPEC)作为治疗的一部分。在手术室中,需要对所有可能存在隐匿性转移疾病的腹膜间隙进行彻底探查。进行改良的细胞减灭性手术并联合结肠切除术,以尽量减少隐匿性腹膜转移的部位。这包括绝经后女性的大网膜、卵巢和输卵管。腹膜切除术用于在肿瘤周围形成一个屏障,以便切除所有与肿瘤表面直接接触的腹膜,并在结肠癌切除过程中用作防止肿瘤细胞播散的屏障。如果在任何部位发现腹膜转移,应将HIPEC纳入治疗方案。 结论:我确信,通过适当的术前评估、术前新辅助化疗和修订的术中管理策略,复发高风险患者的预后将得到改善。
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