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直肠癌根治术后环周切缘的预后价值:多中心倾向评分匹配分析。

Prognostic Value of the Circumferential Resection Margin After Curative Surgery for Rectal Cancer: A Multicenter Propensity Score-Matched Analysis.

机构信息

Colorectal Unit, Department of General and Digestive Surgery, Bellvitge University Hospital, University of Barcelona and IDIBELL, Barcelona, Spain.

Colorectal Unit, Department of General and Digestive Surgery, Vall d'Hebron University Hospital, Barcelona, Spain.

出版信息

Dis Colon Rectum. 2023 Jul 1;66(7):887-897. doi: 10.1097/DCR.0000000000002294. Epub 2022 Mar 29.


DOI:10.1097/DCR.0000000000002294
PMID:35348529
Abstract

BACKGROUND: Recently, positive circumferential resection margin has been found to be an indicator of advanced disease with a high risk of distant recurrence rather than local recurrence. OBJECTIVE: The study aimed to analyze the prognostic impact of the circumferential resection margin on long-term oncological outcomes in patients with rectal cancer. DESIGN: This was a multicenter, propensity score-matched (2:1) analysis comparing the positive and negative circumferential resection margins. SETTINGS: The study was conducted at 5 high-volume centers in Spain. PATIENTS: Patients who underwent total mesorectal excision with curative intent for middle-low rectal cancer between 2006 and 2014 were included. MAIN OUTCOME MEASURES: The main outcomes were local recurrence, distant recurrence, overall survival, and disease-free survival. RESULTS: The unmatched initial cohort consisted of 1599 patients, of whom 4.9% had a positive circumferential resection margin. After matching, 234 patients were included (156 with a negative circumferential margin and 78 with a positive circumferential margin). The median follow-up period was 52.5 (22.0-69.5) months. Local recurrence was significantly higher in patients with a positive circumferential margin (33.3% vs 11.5%; p < 0.001). Distant recurrence was similar in both groups (46.2% vs 42.3%; p = 0.651). There were no statistically significant differences in 5-year overall survival (48.6% vs 43.6%; p = 0.14). Disease-free survival was lower in patients with a positive circumferential margin (36.1% vs 52.3%; p = 0.026). LIMITATIONS: This study was limited by its retrospective design. The different neoadjuvant treatment options were not included in the propensity score. CONCLUSIONS: The positive circumferential resection margin was associated with a higher local recurrence rate and worse disease-free survival in comparison with the negative circumferential resection margin. However, the positive circumferential resection margin was not a prognostic indicator of distant recurrence and overall survival. See Video Abstract at http://links.lww.com/DCR/B950 . VALOR PRONSTICO DEL MARGEN DE RESECCIN CIRCUNFERENCIAL DESPUS DE LA CIRUGA CURATIVA PARA EL CNCER DE RECTO UN ANLISIS MULTICNTRICO EMPAREJADO POR PUNTAJE DE PROPENSIN: ANTECEDENTES:En los últimos años, se ha encontrado que el margen de resección circunferencial positivo es un indicador de enfermedad avanzada con alto riesgo de recurrencia a distancia más que de recurrencia local.OBJETIVO:El objetivo fue analizar el impacto pronóstico del margen de resección circunferencial sobre la recidiva local, a distancia y las tasas de supervivencia en pacientes con cáncer de recto.DISEÑO:Este fue un análisis multicéntrico emparejado por puntaje de propensión 2: 1 que comparó el margen de resección circunferencial positivo y negativo.AJUSTES:El estudio se realizó en 5 centros Españoles de alto volumen.PACIENTES:Se incluyeron pacientes sometidos a escisión total de mesorrecto con intención curativa por cáncer de recto medio-bajo entre 2006-2014. Las características clínicas e histológicas se utilizaron para el emparejamiento.PRINCIPALES MEDIDAS DE RESULTADO:Los resultadoes principales fueron la recurrencia local, la recurrencia a distancia, la supervivencia global y libre de enfermedad.RESULTADOS:La cohorte inicial no emparejada consistió en 1599 pacientes; El 4,9% tuvo un margen de resección circunferencial positivo. Tras el emparejamiento se incluyeron 234 pacientes (156 con margen circunferencial negativo y 78 con margen circunferencial positivo). La mediana del período de seguimiento fue de 52,5 meses (22,0-69,5). La recurrencia local fue significativamente mayor en pacientes con margen circunferencial positivo, 33,3% vs 11,5% [HR 3,2; IC 95%: 1,83-5,43; p < 0,001]. La recidiva a distancia fue similar en ambos grupos (46,2 % frente a 42,3 %) [HR 1,09, IC 95 %: 0,78-1,90; p = 0,651]. No hubo diferencias significativas en la supervivencia global a 5 años (48,6 % frente a 43,6 %) [HR 1,09, IC 95 %: 0,92-1,78; p = 0,14]; La supervivencia libre de enfermedad fue menor en pacientes con margen circunferencial positivo, 36,1% vs 52,3% [HR 1,5; IC 95%: 1,05-2,06; p = 0,026].LIMITACIONES:Este estudio estuvo limitado por el diseño retrospectivo. Las diferentes opciones de tratamientos neoadyuvantes no se han incluido en la puntuación de propensión.CONCLUSIONES:El margen de resección circunferencial positivo se asocia con una mayor tasa de recurrencia local y peor supervivencia libre de enfermedad en comparación con el margen de resección circunferencial negativo. Sin embargo, el margen de resección circunferencial positivo no fue un indicador pronóstico de recidiva a distancia ni de supervivencia global. Consulte el Video del Resumen en http://links.lww.com/DCR/B950 . (Traducción- Dr. Yesenia Rojas-Khalil ).

摘要

背景:最近,阳性环周切缘被发现是疾病进展的指标,具有远处复发的高风险,而不是局部复发。

目的:本研究旨在分析直肠癌患者环周切缘对长期肿瘤学结果的预后影响。

设计:这是一项多中心、倾向评分匹配(2:1)分析,比较了阳性和阴性环周切缘。

设置:该研究在西班牙的 5 个高容量中心进行。

患者:接受根治性中低位直肠全系膜切除术的患者。

主要观察指标:主要结局为局部复发、远处复发、总生存和无病生存。

结果:未匹配的初始队列包括 1599 例患者,其中 4.9%的患者环周切缘阳性。匹配后,共纳入 234 例患者(156 例环周切缘阴性,78 例环周切缘阳性)。中位随访时间为 52.5(22.0-69.5)个月。阳性环周切缘患者局部复发率显著较高(33.3%比 11.5%;p<0.001)。两组远处复发率相似(46.2%比 42.3%;p=0.651)。5 年总生存率无统计学差异(48.6%比 43.6%;p=0.14)。阳性环周切缘患者无病生存率较低(36.1%比 52.3%;p=0.026)。

局限性:本研究受限于回顾性设计。不同的新辅助治疗方案未纳入倾向评分。

结论:与阴性环周切缘相比,阳性环周切缘与更高的局部复发率和无病生存率较差相关。然而,阳性环周切缘不是远处复发和总生存的预后指标。详见原文视频摘要,可点击链接 http://links.lww.com/DCR/B950 观看。

相似文献

[1]
Prognostic Value of the Circumferential Resection Margin After Curative Surgery for Rectal Cancer: A Multicenter Propensity Score-Matched Analysis.

Dis Colon Rectum. 2023-7-1

[2]
Predictors of Positive Circumferential Resection Margin in Rectal Cancer: A Current Audit of the National Cancer Database.

Dis Colon Rectum. 2021-9-1

[3]
Circumferential Resection Margin as Predictor of Nonclinical Complete Response in Nonoperative Management of Rectal Cancer.

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[4]
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[5]
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[6]
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[7]
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[8]
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[9]
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[10]
Radiologic Factors and Areas of Local Recurrence in Locally Advanced Lower Rectal Cancer After Lateral Pelvic Lymph Node Dissection.

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引用本文的文献

[1]
Complete Mesocolic Excision for Colon Cancer: Insight into Potential Mechanisms of Oncologic Benefit.

Cancers (Basel). 2025-8-21

[2]
Tumor regression and safe distance of distal margin after neoadjuvant therapy for rectal cancer.

Front Oncol. 2024-4-4

[3]
Short-term results in a population based study indicate advantage for minimally invasive rectal cancer surgery versus open.

BMC Surg. 2024-2-10

[4]
Pathologic Implications of Radial Resection Margin and Perineural Invasion to Adjuvant Chemotherapy after Preoperative Chemoradiotherapy and Surgery for Rectal Cancer: A Multi-Institutional and Case-Matched Control Study.

Cancers (Basel). 2022-8-25

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