Background: The location of colonic tumors has been linked to different clinical and oncologic outcomes. Transverse colon cancers are generally included as right colon cancers. Furthermore, hepatic and splenic flexure tumors are usually included as components of the transverse colon.
Objective: This study was aimed at comparing the clinicopathologic characteristics and long-term outcomes between mid-transverse and right and left colon cancers and determining the prognostic impact of the primary tumor location in the mid-transverse colon.
Design: This was a retrospective study.
Settings: Two specialized colorectal centers were included.
Patients: Patients who underwent curative surgery for colon cancer were analyzed. Tumors located in the transverse colon, excluding the flexures, were defined as mid-transverse colon cancers.
Main Outcome Measures: Demographic characteristics, operative outcomes, pathologic results, and long-term outcomes were the primary outcome measures.
Results: Of the 487 patients, 41 (8.4%) had mid-transverse, 191 (39.2%) had right, and 255 (52.4%) had left colon cancers. For mid-transverse colon cancers, the mean length of hospital stay, mean length of the resected specimen, and the mean number of harvested lymph nodes were significantly higher. For patients with stage I to III cancer, the 5-year overall and disease-free survival rates were significantly worse in the mid-transverse colon cancers than in the right and left colon cancers (overall survival: 55.5% vs 82.8% vs 85.9%, p = 0.004, and disease-free survival; 47.7% vs 72.4% vs 79.5%, p = 0.003). After adjustment for other clinicopathologic factors, mid-transverse colon cancers were significantly associated with a poor prognosis (HR = 2.19 [95% CI, 1.25-3.83]; p = 0.006).
Limitations: Molecular and genetic information were unavailable in this retrospective study.
Conclusions: In our case series, colon cancers located in the mid-transverse colon showed poorer prognosis than cancers in other locations. The impact of tumor location in the mid-transverse colon on prognosis, including molecular and genetic markers, should be investigated further in prospective studies. See Video Abstract at http://links.lww.com/DCR/B631.
Localizacin Transversa Media En El Tumor De Colon Primario Un Factor De Mal Pronstico: ANTECEDENTES:La ubicación de los tumores de colon se ha relacionado con diferentes resultados clínicos y oncológicos. Los cánceres de colon transverso se incluyen generalmente como cánceres de colon derecho. Además, los tumores del ángulo hepático y esplénico suelen incluirse como un componente del colon transverso.OBJETIVO:Este estudio tuvo como objetivo comparar las características clínico-patológicas y los resultados a largo plazo entre los cánceres de colon transverso medio y derecho e izquierdo y determinar el impacto pronóstico de la ubicación del tumor primario en el colon transverso medio.DISEÑO:Este fue un estudio retrospectivo.AJUSTE ENTORNO CLINICO:Se incluyeron dos centros colorrectales especializados.PACIENTES:Se analizaron los pacientes que fueron sometidos a cirugía curativa por cáncer de colon. Los tumores ubicados en el colon transverso, excluidos los ángulos, se definieron como "cánceres de colon transverso medio".PRINCIPALES MEDIDAS DE RESULTADO VOLARACION:Las características demográficas, los resultados quirúrgicos, los resultados patológicos y los resultados a largo plazo fueron las principales medidas de resultado valoracion.RESULTADOS:De los 487 pacientes, 41 (8,4%) tenían cáncer de colon transverso medio, 191 (39,2%) derecho y 255 (52,4%) cáncer de colon izquierdo. Para los cánceres de colon transverso medio, la duración media de la estancia hospitalaria, la duración de la muestra resecada y el número medio de ganglios linfáticos extraídos fueron significativamente mayores. Para los pacientes en estadio I-III, las tasas de supervivencia general y sin enfermedad a 5 años fueron significativamente peores en los cánceres de colon transverso medio que en los cánceres de colon derecho e izquierdo (supervivencia general: 55,5% frente versus a 82,8% frente versus a 85,9%, p = 0,004 y supervivencia libre de enfermedad; 47,7% frente a 72,4% frente a 79,5%, p = 0,003, respectivamente). Después del ajuste por otros factores clínico-patológicos, los cánceres de colon transverso medio se asociaron significativamente con un pronóstico desfavorable (Razón de riesgo: 2,19; intervalo de confianza del 95%: 1,25-3,83; p = 0,006).LIMITACIONES:La información molecular y genética no estuvo disponible en este estudio retrospectivo.CONCLUSIONES:En nuestra serie de casos, los cánceres de colon localizados en el colon transverso medio mostraron un peor pronóstico que los cánceres en otras localizaciones. El impacto de la ubicación del tumor en el colon transverso medio sobre el pronóstico, incluidos los marcadores moleculares y genéticos, debe investigarse más a fondo en estudios prospectivos. Consulte Video Resumen en http://links.lww.com/DCR/B631. (Traducción-Dr Adrián Ortega).
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http://dx.doi.org/10.1097/DCR.0000000000002083 | DOI Listing |
Gastroenterol Hepatol
November 2024
Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitari Arnau de Vilanova, Lleida, España.
Dis Colon Rectum
January 2024
Department of Anatomy, Tokyo Medical University, Tokyo, Japan.
Background: Complete mesocolic excision with central vascular ligation is a standard method for managing colon cancer. However, there is no consensus on its procedure, especially for cancer in the splenic flexure of the transverse colon. This is because various types of variational arteries are distributed to the region, and their running course below and near the pancreas leads to difficulty in ligating the artery.
View Article and Find Full Text PDFDis Colon Rectum
August 2023
Department of Surgery, Tulane University, New Orleans, Louisiana.
Background: Combined endoscopic robotic surgery is a surgical technique that modifies traditional endoscopic laparoscopic surgery with robotic assistance to aid in the removal of complex colonic polyps. This technique has been described in the literature but lacks patient follow-up data.
Objective: This study aimed to evaluate the safety and outcomes of combined endoscopic robotic surgery.
Dis Colon Rectum
June 2023
Department of General Surgery, School of Medicine; Ankara University, Ankara, Turkey.
Background: Surgical management of splenic flexure carcinoma remains controversial.
Objective: This study aimed to establish an expert international consensus on splenic flexure carcinoma management.
Design: A 3-round online-based Delphi study was conducted between September 2020 and April 2021.
Dis Colon Rectum
February 2023
Department of Colon and Rectal Surgery, Ochsner Clinic Foundation, New Orleans, Louisiana.
Background: Transversus abdominis plane blocks improve postoperative pain after colon and rectal resections, but the benefits of liposomal bupivacaine use for these blocks have not been clearly demonstrated.
Objective: This study aimed to determine whether using liposomal bupivacaine in transversus abdominis plane blocks improves postoperative pain and reduces opioid use after colorectal surgery compared to standard bupivacaine.
Design: This study was a single-blinded, single-institution, prospective randomized controlled trial comparing liposomal bupivacaine to standard bupivacaine in transversus abdominis plane blocks in patients undergoing elective colon and rectal resections.
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