Department of Surgery, Division of General Surgery, Oregon Heath & Science University, Portland, Oregon, USA.
Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, Portland, Oregon, USA.
J Surg Oncol. 2023 May;127(6):956-965. doi: 10.1002/jso.27225. Epub 2023 Mar 11.
Primary resection and debulking of liver metastases have been associated with improved survival in pancreatic neuroendocrine tumors (PNETs). The treatment patterns and outcomes differences between low-volume (LV) institutions and high-volume (HV) institutions remains unstudied.
A statewide cancer registry was queried for patients with nonfunctional PNET from 1997 to 2018. LV institutions were defined as treating <5 newly diagnosed patients with PNET per year, while HV institutions treated ≥5.
We identified 647 patients: 393 with locoregional (n = 236 HV care, n = 157 LV care) and 254 with metastatic disease (n = 116 HV care, n = 138 LV care). Patients with HV care had improved disease-specific survival (DSS) compared to patients with LV care for both locoregional (median 63 vs. 32 months, p < 0.001) and metastatic disease (median 25 vs. 12 months, p < 0.001). In patients with metastatic disease, primary resection (hazard ratio [HR]: 0.55, p = 0.003) and HV institution (HR: 0.63, p = 0.002) were independently associated with improved DSS. Furthermore, diagnosis at a HV center was independently associated with higher odds of receiving primary site surgery (odds ratio [OR]: 2.59, p = 0.01) and metastasectomy (OR: 2.51, p = 0.03).
Care at HV centers is associated with improved DSS in PNET. We recommend referral of all patients with PNETs to HV centers.
原发肿瘤切除术和肿瘤减灭术与胰腺神经内分泌肿瘤(pancreatic neuroendocrine tumors,PNETs)患者的生存改善相关。低容量(low-volume,LV)机构和高容量(high-volume,HV)机构之间的治疗模式和结果差异尚未得到研究。
通过全州癌症登记处,从 1997 年至 2018 年检索非功能性 PNET 患者。低容量机构定义为每年治疗<5 例新诊断的 PNET 患者,而高容量机构则治疗≥5 例。
共纳入 647 例患者:局部区域疾病 393 例(236 例 HV 治疗,157 例 LV 治疗),转移性疾病 254 例(116 例 HV 治疗,138 例 LV 治疗)。与 LV 治疗相比,HV 治疗患者的疾病特异性生存率(disease-specific survival,DSS)更高,无论是局部区域疾病(中位 63 个月比 32 个月,p<0.001)还是转移性疾病(中位 25 个月比 12 个月,p<0.001)。在转移性疾病患者中,原发肿瘤切除术(风险比 [hazard ratio,HR]:0.55,p=0.003)和 HV 机构(HR:0.63,p=0.002)与改善 DSS 独立相关。此外,在 HV 中心诊断与接受原发灶手术(优势比 [odds ratio,OR]:2.59,p=0.01)和转移灶切除术(OR:2.51,p=0.03)的可能性更高独立相关。
在 PNET 中,HV 中心的治疗与改善 DSS 相关。我们建议将所有 PNET 患者转诊至 HV 中心。