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Management and Outcomes of Pathologic Upstaging of Clinical Stage I Rectal Cancers: An Exploratory Analysis.
Lussiez, Alisha; Rivard, Samantha J; Hollingsworth, Kamren; Abdel-Misih, Sherif R Z; Bauer, Philip S; Hrebinko, Katherine A; Balch, Glen C; Maguire, Lillias H.
Afiliação
  • Lussiez A; Department of Surgery, University of Michigan, Ann Arbor, Michigan.
  • Rivard SJ; Department of Surgery, University of Michigan, Ann Arbor, Michigan.
  • Hollingsworth K; Section of Colon & Rectal Surgery, Division of General Surgery, Vanderbilt University Medical Center, Nashville, Tennessee.
  • Abdel-Misih SRZ; Division of Surgical Oncology, Department of Surgery, The Ohio State University, Columbus, Ohio.
  • Bauer PS; Section of Colon & Rectal Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri.
  • Hrebinko KA; Division of Colon and Rectal Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
  • Balch GC; Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia.
  • Maguire LH; Division of Colon & Rectal Surgery, Department of Surgery, Emory University, Atlanta, Georgia.
Dis Colon Rectum ; 66(4): 543-548, 2023 04 01.
Article em En | MEDLINE | ID: mdl-35849821
ABSTRACT

BACKGROUND:

Preoperative staging of clinical stage I rectal cancer can fail to diagnose T3 or nodal disease. Adjuvant treatment of these upstaged patients remains controversial.

OBJECTIVE:

The objective was to identify predictors of clinical stage I rectal cancer upstaging and quantify rates of local and systemic recurrence.

DESIGN:

This was a retrospective cohort study. SETTINGS The study was conducted using data from the United States Rectal Cancer Consortium, a registry of 1881 rectal cancer resections performed at 6 academic medical centers. PATIENTS There were a total of 94 clinical stage I rectal cancer patients who underwent proctectomy without preoperative therapy. MAIN OUTCOME

MEASURES:

The primary measures were incidence of pathologic upstaging, recurrence (local and systemic), and overall survival.

RESULTS:

Among 94 clinical stage I patients who underwent proctectomy without preoperative therapy, 23 (24.5%) were upstaged by surgical pathology. There were 6 pT3N0 patients, 8 pT1-2N+ patients, and 9 pT3N+ patients. There were no significant differences in demographic or clinical characteristics between upstaged and nonupstaged patients. Of the 6 patients who were upstaged to T3N0 disease, none received adjuvant therapy and none developed recurrence. Of the 17 patients who were upstaged to N+ disease, 14 (82%) received adjuvant chemotherapy and 6 (35%) received adjuvant chemoradiation. None developed a local recurrence, but 4 (24%) developed systemic recurrence, and 2 (12%) died of disease over a mean of 36 months of follow-up. Among the 9 pT3N+ patients, the systemic recurrence rate was 33%, despite 8 of 9 patients receiving adjuvant fluorouracil, leucovorin, and oxaliplatin.

LIMITATIONS:

Small sample size hinders the ability to draw significant conclusions.

CONCLUSIONS:

One in 4 patients with stage I rectal cancer had unrecognized T3 or nodal disease found on operative pathology. Occult nodal disease was associated with worse outcomes, despite receiving adjuvant therapy. Systemic recurrence was more common than local recurrence. See Video Abstract at http//links.lww.com/DCR/B885 . MANEJO Y RESULTADOS DEL AUMENTO DEL ESTADIO PATOLGICO DE LOS CNCERES DE RECTO EN ESTADIO CLNICO I UN ANLISIS EXPLORATORIO ANTECEDENTESEl estadiaje pre-operatorio del cáncer de recto en fase clínica I puede ser erróneo en el diagnóstico T3 o en la diseminación ganglionar. El tratamiento adyuvante de estos pacientes sobre-estadificados ​​sigue siendo controvertido.

OBJETIVO:

El identificar los factores predictivos en fase clínica I del cáncer de recto y cuantificar las tasas de recurrencia local y sistémica.

DISEÑO:

Estudio de cohortes retrospectivo.AJUSTEEl estudio se realizó utilizando los datos del Consorcio del Cáncer de Recto de los Estados Unidos, con un registro de 1.881 resecciones oncológicas rectales realizadas en seis centros médicos académicos.PACIENTESUn total de 94 pacientes con cáncer de recto en fase clínica I fueron sometidos a proctectomía sin terapia preoperatoria.PRINCIPALES MEDIDAS DE

RESULTADO:

Las medidas primarias fueron la incidencia del sobre-estadiaje histopatológico, la recurrencia (local y sistémica) y la sobrevida general.

RESULTADOS:

De 94 pacientes en fase clínica I que se sometieron a una proctectomía sin terapia preoperatoria, 23 (24,5%) fueron sobre-estadiados ​​por la histopatología quirúrgica. Hubieron 6 pacientes pT3N0, 8 pT1-2N + y 9 pT3N +. No hubo diferencias significativas en las características demográficas o clínicas entre los pacientes sobre-estadiados ​​y los no sobre-estadiados. De los 6 pacientes que fueron sobre-estadiados en la enfermedad T3N0, ninguno de ellos recibió terapia adyuvante y ninguno recidivó. De los 17 pacientes que fueron sobre-estadiados a la enfermedad N +, 14 (82%) recibieron quimioterapia adyuvante y 6 (35%) recibieron quimio-radioterapia adyuvante. Ninguno desarrolló recidiva local, pero 4 (24%) desarrollaron recidiva sistémica y 2 (12%) murieron a causa de la enfermedad durante el seguimiento medio de 36 meses. Entre los 9 pacientes con pT3N +, la tasa de recidiva sistémica fue del 33%, a pesar de que 8 de 9 pacientes recibieron fluorouracilo, leucovorina y oxaliplatino como quimio-adyuvantes.LIMITACIONESEl tamaño pequeño de la muestra dificulta la capacidad de obtener conclusiones significativas.

CONCLUSIONES:

Uno de cada cuatro pacientes con cáncer de recto en estadío I presentaba enfermedad ganglionar o T3 no descrita en la histopatología operatoria. La enfermedad ganglionar oculta se asoció con peores resultados, a pesar de recibir terapia adyuvante. La recidiva sistémica fue más común que la recidiva local. Consulte Video Resumen en http//links.lww.com/DCR/B885 . (Traducción-Dr. Xavier Delgadillo ).
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Retais / Protectomia Tipo de estudo: Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Humans Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Retais / Protectomia Tipo de estudo: Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Humans Idioma: En Ano de publicação: 2023 Tipo de documento: Article