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胰腺癌转化治疗后手术治疗的进展

Advances in Surgical Treatment Following Conversion Therapy for Pancreatic Cancer

  • 摘要: 胰腺癌具有起病隐匿、侵袭性强和治疗反应差等特点,根治性切除仍是目前唯一可能治愈的方式,但约80%的患者初诊时已处于局部进展期或转移阶段,失去根治性手术机会。近年来,随着新型药物的研发和化疗方案的不断更新,转化治疗的效果取得显著进展。转化治疗旨在通过系统性治疗(包括化疗、靶向治疗、免疫治疗等)联合局部治疗(放疗、介入治疗等),通过缩小肿瘤体积、消除微转移灶,将局部进展期或转移性胰腺癌等初始不可切除的肿瘤转化为可切除的状态,从而提高手术切除率,使患者生存获益。胰腺癌转化治疗后手术治疗目前仍存在诸多争议,本文介绍了转化治疗方案和治疗周期,转化治疗后疗效评估手段,转化治疗后手术的切除率、治疗效果,重点总结了转化治疗后手术的技术要点(包括R0切除、静脉处理、动脉切除处理、动脉鞘剥离处理要点),动脉切除重建的学习曲线,并指出微创技术(如腹腔镜/机器人)的应用潜力,生物标志物、影像学与人工智能的整合前景有望优化个体化决策,多学科协作、手术团队的综合实力、手术技巧的掌握和提升也是影响转化治疗后的可切除性和疗效的关键因素。

     

    Abstract: Pancreatic cancer is characterized by an insidious onset, high invasiveness, and poor response to treatment. Radical resection remains the only potentially curative approach currently available. However, approximately 80% of patients are already in the locally advanced or metastatic stage at initial diagnosis and have missed the opportunity for radical surgery. In recent years, with the development of novel drugs and updates to chemotherapy regimens, significant progress has been made in improving the efficacy of conversion therapy. Conversion therapy aims to transform initially unresectable tumors, such as locally advanced or metastatic pancreatic cancer, into a resectable state through systemic therapies (including chemotherapy, targeted therapy, immunotherapy, etc.) combined with localized treatments (such as radiotherapy, interventional therapy, etc.). This approach reduces tumor volume and eliminates micrometastases, thereby improving surgical resection rates and patient survival outcomes. However, considerable controversy remains regarding surgical treatment after conversion therapy for pancreatic cancer. This article provides an overview of conversion therapy regimens and treatment cycles, methods for evaluating therapeutic efficacy post-conversion therapy, the resection rates, and treatment outcomes of surgery following conversion therapy. The key technical points of post-conversion therapy surgery, including R0 resection, venous management, arterial resection and reconstruction, and the management of periarterial divestment, are highlighted. The learning curve for arterial resection and reconstruction is also discussed. Additionally, the potential applications of minimally invasive techniques (such as laparoscopy and robotics) are highlighted. The integration of biomarkers, imaging, and artificial intelligence holds promise for optimizing individualized decision-making. Multidisciplinary collaboration, the comprehensive competence of the surgical team, and the mastery and refinement of surgical skills are also critical factors that influence resectability and therapeutic outcomes after conversion therapy.

     

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