鼻咽癌放射治疗后鼻咽部出血血管管理研究进展

Recent advances in vascular management of nasopharyngeal hemorrhage following radiotherapy for nasopharyngeal carcinoma

  • 摘要: 放射治疗是鼻咽癌的重要治疗手段,但辐射不可避免地会损伤周围组织,引发相关并发症,尤其是假性动脉瘤的形成。准确掌握放射治疗后假性动脉瘤的进展情况,及时采取止血措施并减少出血量,是治疗成功的关键。文章聚焦于鼻咽癌放射治疗后鼻咽部出血的机制及临床治疗方法,探讨鼻咽癌放射治疗后鼻咽部出血的血管管理策略。研究显示,对于大出血患者,行气管切开或气管插管是积极有效的急救措施;而非大出血患者则可采用升阶梯止血法。血管重建治疗包括多种策略:血管栓塞是治疗颈外动脉出血的主要方法,而颈内动脉出血则更倾向于采用支架置入或动脉搭桥术。其中,血管搭桥术在提高远期生存率方面具有相对优势,而新型支架的应用在降低脑缺血和再出血风险方面表现出积极效果。对于临床工作者而言,选择最佳治疗策略并积极进行血管内管理或血管重建治疗,有助于提高鼻咽癌患者放射治疗后鼻咽部出血的治疗效果。

     

    Abstract: Research findings indicate that radiotherapy is a crucial treatment modality for nasopharyngeal carcinoma (NPC), however, irradiation inevitably damages surrounding tissues, leading to related complications, particularly the formation of pseudoaneurysms. Accurate monitoring of post-radiotherapy pseudoaneurysm progression, timely implementation of hemostatic measures, and reduction of bleeding volume are critical in management. This review focuses on the mechanisms and clinical management of nasopharyngeal hemorrhage following radiotherapy for NPC, aiming to explore vascular management strategies for post-radiotherapy bleeding in the nasopharyngeal region. For patients with massive hemorrhage, tracheotomy or endotracheal intubation serves as an active and effective emergency intervention; non-massive bleeding may be managed using the step-by-step hemostasis technique. Vascular re-construction encompasses multiple strategies: embolization is the primary approach for extracranial artery bleeding, while intracranial artery bleeding is more commonly managed with stenting or arterial bypass grafting. Arterial bypass grafting offers relative advantages in long-term survival rates, while novel stents demonstrate positive effects in reducing cerebral ischemia and rebleeding risks. For clinicians, selecting the ptimal treatment strategy and actively implementing endovascular management or vascular reconstruction can enhance treatment outcomes for nasopharyngeal hemorrhage following radiotherapy in NPC patients.

     

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