{Reference Type}: Journal Article
{Title}: Secondary cytoreductive surgery and hyperthermic intraperitoneal chemotherapy for recurrent colorectal peritoneal metastases.
{Author}: Cashin PH;Asplund D;Bexe Lindskog E;Ghanipour L;Syk I;Graf W;Nilsson PJ;Jansson Palmer G;
{Journal}: Surg Open Sci
{Volume}: 20
{Issue}: 0
{Year}: 2024 Aug
暂无{DOI}: 10.1016/j.sopen.2024.05.018
{Abstract}: <B>UNASSIGNED: </B>Secondary treatment of recurrent colorectal peritoneal metastases after previous cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) is poorly investigated.<BR><B>UNASSIGNED: </B>To evaluate the overall survival outcome of secondary (repeat) CRS + HIPEC compared to palliative treatment in recurrent peritoneal disease.<BR><B>UNASSIGNED: </B>Patients with colorectal peritoneal metastases treated with an index CRS + HIPEC and subsequently having recurrent peritoneal disease were identified from the prospective Swedish national HIPEC registry. Patients were divided into interventional group (secondary CRS + HIPEC) or palliative group. Multivariable logistic regression, propensity-score matching, and survival outcomes were calculated.<BR><B>UNASSIGNED: </B>Among 575 patients who underwent complete CRS between 2010 and 2021, 208 (36 %) were diagnosed with a subsequent recurrent peritoneal disease. Forty-two patients (20 %) were offered secondary CRS + HIPEC. Propensity-score matching of secondary interventional cases with palliative cases succeeded in 88 % (n = 37) in which female sex, lower peritoneal cancer index at index surgery, longer disease-free interval, and absence of extra-peritoneal metastases were identified as the most relevant matching covariates. Median OS from date of recurrence was 38 months (95%CI 30-58) in the interventional group and 19 months (95%CI: 15-24) in the palliative group (HR 0.35 95%CI: 0.20-0.63, p = 0.0004). Sensitivity analyses confirmed the results. As reference, the median OS from index CRS + HIPEC in the whole colorectal registry (n = 575) was 41 months (95%CI: 38-45).<BR><B>UNASSIGNED: </B>After matching for relevant factors, the hazard ratio for death was significantly reduced in patients who were offered a secondary CRS + HIPEC procedure for recurrent peritoneal disease. Selection bias is inherent, but survival outcomes were comparable to those achieved after the initial procedure.