School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
Int J Surg. 2022 Nov;107:106969. doi: 10.1016/j.ijsu.2022.106969. Epub 2022 Oct 31.
BACKGROUND: Phyllodes tumor is rare but has a high recurrence rate. Treatment modalities and clinicopathological prognostic factors for recurrence remain unclear. The synthesis of real-world data can enable the integration of sufficient evidence on optimal treatment for this population. METHODS: We searched PubMed, Embase, and Cochrane Library databases for studies focusing on the management of phyllodes tumor including the surgical margin, different clinicopathological prognostic factors, and postoperative adjuvant radiotherapy versus no radiotherapy. RESULTS: Fifty-two studies were retrieved. The pooled estimated recurrence rates of benign, borderline, and malignant tumors were 7.1%, 16.7%, and 25.1%, respectively. Surgical margins of 1 mm (odds ratio [OR]: 0.4, 95% confidence interval [CI]: 0.27-0.61) and 1 cm (OR: 0.45, 95% CI: 0.15-0.85) resulted in significantly higher recurrence rates. Postoperative adjuvant radiotherapy significantly reduced the recurrence rate of malignant tumors relative to no radiotherapy (P = 0.034) but did not significantly reduce the recurrence rates of overall and borderline tumors. Regarding clinicopathological features, moderate or severe stromal atypia and hypercellularity, stromal overgrowth, mitotic number of 5, tumor necrosis, tumor border, and margin status were determined as independent prognostic factors for recurrence, except a tumor size of 5 cm. CONCLUSION: The ideal surgical margin for phyllodes tumor incision should be at least 1 cm in width. Adjuvant radiotherapy reduced the recurrence of malignant tumor. By identifying patients with poor clinicopathological risk factors, surgeons may reduce the recurrence rate of phyllodes tumor.
背景:叶状肿瘤虽罕见,但复发率高。治疗方式和与复发相关的临床病理预后因素仍不明确。真实世界数据的综合可以整合针对该人群的最佳治疗方法的充分证据。
方法:我们检索了 PubMed、Embase 和 Cochrane Library 数据库,以获取有关叶状肿瘤管理的研究,包括手术切缘、不同的临床病理预后因素以及术后辅助放疗与无放疗。
结果:共检索到 52 项研究。良性、交界性和恶性肿瘤的 pooled 估计复发率分别为 7.1%、16.7%和 25.1%。1mm(比值比 [OR]:0.4,95%置信区间 [CI]:0.27-0.61)和 1cm(OR:0.45,95%CI:0.15-0.85)的手术切缘导致显著更高的复发率。与无放疗相比,术后辅助放疗显著降低了恶性肿瘤的复发率(P=0.034),但并未显著降低总体和交界性肿瘤的复发率。关于临床病理特征,中度或重度间质异型性和细胞增多、间质过度生长、核分裂象数为 5、肿瘤坏死、肿瘤边界和切缘状态被确定为复发的独立预后因素,除肿瘤大小为 5cm 外。
结论:叶状肿瘤切口的理想手术切缘宽度应至少为 1cm。辅助放疗降低了恶性肿瘤的复发率。通过识别具有不良临床病理风险因素的患者,外科医生可以降低叶状肿瘤的复发率。
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