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Background <p>Advanced colorectal cancer (CRC) predisposes to peritoneal metastases (PM), leading to a decreased survival rate. Advanced CRC includes CRC with PM (CRC-PM) and locally advanced high-risk CRC without PM. The effectiveness of hyperthermic intraperitoneal chemotherapy (HIPEC) in prolonging survival and in treating or preventing PM after surgery for advanced CRC is still uncertain.</p> Methods <p>A search of PubMed, Cochrane, Embase, and Web of science databases for relevant studies prior to April 2024 was performed. Data were analyzed using Stata/MP 17.0 software. The primary outcomes included overall survival (OS) and disease-free survival (DFS). Secondary outcomes were overall recurrence rate (ORR), PM rate, and complications. The quality of evidence was assessed using Grading of Recommendations, Assessment, Development, and Evaluations (GRADE).</p> Results <p>A total of ten high-quality cohort studies and four randomized controlled trials (RCTs) were included, encompassing 2851 patients. HIPEC improved 1-year DFS (odds ratio (OR) = 1.64, 95%Cl: 1.09–2.46) and 5-year OS (OR = 1.49, 95%Cl: 1.10–2.03) in advanced CRC. HIPEC also reduced the overall PM rate (OR = 0.66, 95%Cl: 0.49–0.90). For advanced high-risk CRC without prior PM, HIPEC reduced the PM rate and had a preventive effect (OR = 0.71, 95%Cl: 0.52–0.97). In terms of complications, HIPEC increased the incidence of thrombopenia (OR = 5.77, 95%Cl: 1.65–20.09) and neutropenia (OR = 3.21, 95%Cl: 1.74–5.90). The quality of evidence ranged from high to very low.</p> Conclusion <p>The use of HIPEC in treating advanced CRC may result in improved survival rates and a reduction in peritoneal recurrence or metastasis, although complications should be considered. Further investigation is required to clarify the role of HIPEC in more high-quality RCTs.</p>

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Effect of hyperthermic intraperitoneal chemotherapy on patients with advanced colorectal cancer: a systematic review and meta-analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月29日

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  • Ziying Su,
  • Yong Guo,
  • Xiaosong Ru,
  • Xiao Wang,
  • Qiaoran Mao,
  • Nuo Zhou,
  • Zhili Xu,
  • Luyi Huang,
  • Chenyu Ge,
  • Yaonan Hong,
  • Fule He,
  • Meilan Hu

摘要

Background

Advanced colorectal cancer (CRC) predisposes to peritoneal metastases (PM), leading to a decreased survival rate. Advanced CRC includes CRC with PM (CRC-PM) and locally advanced high-risk CRC without PM. The effectiveness of hyperthermic intraperitoneal chemotherapy (HIPEC) in prolonging survival and in treating or preventing PM after surgery for advanced CRC is still uncertain.

Methods

A search of PubMed, Cochrane, Embase, and Web of science databases for relevant studies prior to April 2024 was performed. Data were analyzed using Stata/MP 17.0 software. The primary outcomes included overall survival (OS) and disease-free survival (DFS). Secondary outcomes were overall recurrence rate (ORR), PM rate, and complications. The quality of evidence was assessed using Grading of Recommendations, Assessment, Development, and Evaluations (GRADE).

Results

A total of ten high-quality cohort studies and four randomized controlled trials (RCTs) were included, encompassing 2851 patients. HIPEC improved 1-year DFS (odds ratio (OR) = 1.64, 95%Cl: 1.09–2.46) and 5-year OS (OR = 1.49, 95%Cl: 1.10–2.03) in advanced CRC. HIPEC also reduced the overall PM rate (OR = 0.66, 95%Cl: 0.49–0.90). For advanced high-risk CRC without prior PM, HIPEC reduced the PM rate and had a preventive effect (OR = 0.71, 95%Cl: 0.52–0.97). In terms of complications, HIPEC increased the incidence of thrombopenia (OR = 5.77, 95%Cl: 1.65–20.09) and neutropenia (OR = 3.21, 95%Cl: 1.74–5.90). The quality of evidence ranged from high to very low.

Conclusion

The use of HIPEC in treating advanced CRC may result in improved survival rates and a reduction in peritoneal recurrence or metastasis, although complications should be considered. Further investigation is required to clarify the role of HIPEC in more high-quality RCTs.