Background: Neoadjuvant chemoradiotherapy followed by radical surgery is the standard curative treatment for mid- to low-rectal cancer. However, the combination of these treatments may affect patients' GI and genitourinary functions and their quality of life. In the cases of good clinical response to neoadjuvant treatment, local excision is a rectal sparing strategy that would limit these side effects.

Objective: The aim of this study is to compare the effects of local excision or conventional laparoscopic total mesorectal excision after chemoradiotherapy in patients with rectal cancer.

Design: The design is a retrospective study.

Setting: The setting used is a single tertiary center.

Patients: Patients with mid- to low-rectal cancer treated with chemoradiotherapy and accessible via conservative surgery at our hospital between January 2010 and December 2018 were included. Patients undergoing local excision were matched 1 to 1 with the patients undergoing total mesorectal excision by age, sex, body mass index, tumor height, and year of surgery.

Main Outcome Measures: Quality of life and digestive and genitourinary functions were measured using validated questionnaires. The socioeconomic impact was also assessed.

Results: Forty-four patients undergoing local excision agreed to participate and were matched with 44 patients undergoing total mesorectal excision. Patients who underwent local excision reported a more favorable global health status ( p < 0.01), emotional function ( p = 0.035), social function ( p = 0.04), and body image ( p = 0.04). The low anterior resection syndrome score (rate of major syndrome, 23.8% vs 54.5%; p < 0.01) and the specific fecal incontinence subscale score ( p < 0.01) were more favorable in the local excision group. Sexual and urinary outcomes were comparable between the 2 groups. Local excision had a lower impact on the professional status (35.7% vs 76.5%; p = 0.03).

Limitations: The study limitations include its retrospective design and small sample size.

Conclusions: When indicated, local excision improves the bowel function and quality of life of patients undergoing surgery for rectal cancer after chemoradiotherapy compared with total mesorectal excision. See Video Abstract at http://links.lww.com/DCR/B997 .

Comparacin De Casos Emparejados De Los Resultados Funcionales Y De Calidad De Vida De La Escisin Local Y La Escisin Total De Mesorecto Despus De Quimiorradioterapia En Cncer De Recto: ANTECEDENTES:La quimiorradioterapia neoadyuvante seguida de cirugía radical es el tratamiento curativo estándar para el cáncer de recto medio-bajo. Sin embargo, la combinación de estos tratamientos puede afectar las funciones gastrointestinales y genitourinarias de los pacientes y su calidad de vida. En casos de buena respuesta clínica al tratamiento neoadyuvante, la escisión local es una estrategia conservadora del recto que limitaría estos efectos secundarios.OBJETIVO:Este estudio comparó los efectos de la escisión local o escisión total de mesorecto laparoscópica convencional después de quimiorradioterapia en pacientes con cáncer de recto.DISEÑO:Estudio retrospectivo.ENTORNO CLINICO:Centro terciario único.PACIENTES:Se incluyeron pacientes con cáncer de recto medio-bajo tratados con quimiorradioterapia y accesibles mediante cirugía conservadora en nuestro hospital entre enero del 2010 y diciembre del 2018. Los pacientes sometidos a escisión local se emparejaron uno a uno con los sometidos a escisión total de mesorecto por edad, sexo, índice de masa corporal, altura del tumor y año de cirugía.PRINCIPALES MEDIDAS DE RESULTADO:La calidad de vida, las funciones digestivas y genitourinarias se midieron mediante cuestionarios validados. También se evaluó el impacto socioeconómico.RESULTADOS:Cuarenta y cuatro pacientes sometidos a escisión local aceptaron participar y fueron emparejados con 44 pacientes sometidos a escisión mesorrectal total. Los pacientes que se sometieron a escisión local informaron un estado de salud global más favorable ( p <0,01), función emocional ( p = 0,035), función social ( p = 0,04) e imagen corporal ( p = 0,04). La puntuación baja del síndrome de resección anterior (tasa de síndrome mayor: 23,8 % frente a 54,5 %; p <0,01) y la puntuación de la subescala de incontinencia fecal específica ( p <0,01) fueron más favorables en el grupo de escisión local. Los resultados sexuales y urinarios fueron comparables entre los dos grupos. La escisión local tuvo un menor impacto en el estatus profesional (35,7% vs 76,5%; p = 0,03).LIMITACIONES:Diseño retrospectivo, tamaño de muestra pequeño.CONCLUSIONES:Cuando está indicada, la escisión local mejora la función intestinal y la calidad de vida de los pacientes sometidos a cirugía por cáncer de recto después de quimiorradioterapia en comparación con escisión total de mesorecto. Consulte Video Resumen en http://links.lww.com/DCR/B997 . (Traducción-Dr. Francisco M. Abarca-Rendon ).

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