The aim of this study was to conduct a comprehensive review of the predictive significance of PNI in HNSCC survival outcomes. A systematic search was conducted across multiple databases, and all studies published in the last decade were screened (Research Registry ID: reviewregistry1853). The included studies were assessed using the Quality in Prognosis Studies tool. Survival outcome data were extracted, combined, and presented as hazard ratios (HR) with a 95% confidence interval (CI). Totally, 74 studies encompassing 27,559 patients were analyzed and revealed a cumulative occurrent rate of 30% for PNI in HNSCC. PNI+ HNSCC patients had a worse overall survival (HR: 1.91, 95% CI: 1.71–2.13), disease-specific survival (HR: 1.79, 95% CI: 1.55–2.07), disease-free survival (HR: 1.82, 95% CI: 1.69–1.96), local recurrence (HR: 2.54, 95% CI: 1.93–3.33), locoregional recurrence (HR: 2.27, 95% CI: 1.82–2.82), locoregional relapse free survival (HR: 1.77, 95% CI: 1.28–2.45), distant metastasis (HR: 1.82, 95% CI: 1.34–2.48), and distant metastasis-free survival (HR: 2.97, 95% CI: 1.82–4.85) compared to those PNI– patients. The available evidence unequivocally establishes PNI as a critical prognostic factor for worse survival in HNSCC patients.
本研究旨在系统评估神经周围侵犯(PNI)对头颈部鳞状细胞癌(HNSCC)患者生存结局的预测价值。通过多数据库系统性检索,筛选了近十年发表的所有相关研究(研究注册号:reviewregistry1853),并采用预后研究质量评估工具对纳入文献进行质量评价。提取并整合生存结局数据,以风险比(HR)及95%置信区间(CI)呈现分析结果。共纳入74项研究,涵盖27,559例患者,分析显示HNSCC中PNI的总体发生率为30%。与PNI阴性患者相比,PNI阳性患者的总体生存率(HR: 1.91, 95% CI: 1.71–2.13)、疾病特异性生存率(HR: 1.79, 95% CI: 1.55–2.07)、无病生存率(HR: 1.82, 95% CI: 1.69–1.96)更差,局部复发(HR: 2.54, 95% CI: 1.93–3.33)、区域复发(HR: 2.27, 95% CI: 1.82–2.82)、区域无复发生存率(HR: 1.77, 95% CI: 1.28–2.45)、远处转移风险(HR: 1.82, 95% CI: 1.34–2.48)及无远处转移生存率(HR: 2.97, 95% CI: 1.82–4.85)均显著恶化。现有证据明确表明,PNI是HNSCC患者不良预后的关键预测因子。