Oncological outcomes of open, laparoscopic and robotic colectomy in patients with transverse colon cancer.

BACKGROUND: Literature concerning surgical management of transverse colon cancer is scarce, since many key trials excluded transverse colon cancer. The aim of this study was to evaluate clinical and oncological outcomes comparing open, laparoscopic and robotic transverse colon cancer resection. METHODS: Consecutive patients who underwent elective surgery for transverse colon cancer between December 2005 and July 2021 were included. Data were kept in a prospective database approved by the institutional ethics committee. Primary outcome was overall and disease-free survival. Secondary outcomes included complications, operative time, length of stay and lymph node harvest. Statistical analysis was corrected for age and tumour localisation. RESULTS: Two hundred and forty-six (38 robotic, 71 open and 137 laparoscopic resections) were recruited in this study. There were five conversions during laparoscopic procedures. Operative time was significantly shorter in robotic vs laparoscopic procedures (195 vs 238 min, p = 0.005) and length of stay was shorter in robotic vs laparoscopic and open group (7 vs 9 vs 15 days, p < 0.001). There was no difference in overall complications. R0 resections were similar. Lymph node harvest was highest in the robotic group vs. laparoscopic or open (32 vs. 29 vs. 21, p < 0.001). Overall survival was 97%, 85% and 60% (p < 0.001) and disease-free survival was 91%, 78% and 56% (p < 0.001) for the robotic, laparoscopic and open groups, respectively. CONCLUSIONS: Minimally invasive surgery for transverse colon cancer is safe and offers good clinical and oncological outcomes. Robotic resection is associated with significantly shorter operating times, higher lymph node harvest, lower conversion rate and does not increase morbidity. Differences in disease-free and overall survival should be further explored in randomised controlled trials.

Cirugía robótica colorectal, en un hospital de comunidad cerrada: experiencia inicial leído en sesión SACP, 11 de octubre de 2019 / Colorectal robotic surgery in a closed community hospital: initial experience read in SACP session, october 11, 2019

Introducción: La introducción del sistema Da Vinci, ha revolucionado el campo de la cirugía mínima invasiva en el cual el cirujano tiene control de la cámara 3D y los instrumentos son de gran destreza y confort ergonómico, acortando la curva de aprendizaje quirúrgica. Objetivo: Describir nuestra experiencia inicial de cirugía robótica colorectal en un hospital de comunidad cerrada de la Ciudad Autónoma de Buenos Aires. Materiales y Método: Estudio retrospectivo descriptivo sobre una base prospectiva de cirugías colorectales robóticas realizadas por el mismo equipo quirúrgico desde mayo de 2016 a abril de 2019. Resultados: Se operaron 41 pacientes. Trece de ellos fueron colectomías derechas, 17 colectomías izquierdas y 11 cirugías de recto. El tiempo quirúrgico promedio fue de 170 minutos (90-330), la estadía hospitalaria de 4 días (3-30), la tasa de conversión de 7,31% (3/41 pacientes) y la tasa de dehiscencia anastomótica del 9,75% (4/41 pacientes). Morbilidad global del 19.5% (8/41 pacientes). Conclusión: Hemos repasado los resultados iniciales de nuestra experiencia en cirugía robótica colorectal en un número reducido de casos, pero suficiente para evaluar la seguridad y reproducibilidad del método al comienzo de una curva de aprendizaje.

Introduction: The introduction of the Da Vinci System, has revolved the field of invasive minimal surgery in which the surgeon has control of the 3d camera and the instruments are of great strength and ergonomic comfort by cutting the surgical learning curve. Objective: Of this preliminary presentation is to describe our initial experience of colorectal robotic surgery in a closed community hospital of the Autonomous City of Buenos Aires. Materials and Method: Retrospective descriptive study on a prospective basis of robotic colorectal surgeries performed by the same surgical team from May 2016 to April 2019.Results: 41 patients were operated. 13 of them were right colectomies, 17 left colectomies and 11 rectum surgeries. The average surgical time was 170 minutes (90-330), the average hospital stay of 4 days (3-30), the conversion rate of 7.31% (3/41 patients) and the anastomotic dehiscence rate of 9 , 75% (4/41 patients). Overall morbidity of 19.5% (8/41 patients).Conclusion: We have reviewed the initial results of our experience in colorectal robotic surgery in a reduced number of cases but sufficient to evaluate the security and reproducibility of the methodic learning of a learning curve.

Colorectal robotic surgery: INCA's experience / Cirurgia robótica colorretal: experiência do INCA

ABSTRACT Introduction: Minimally invasive surgery has revolutionized surgical management in the treatment of colorectal neoplasms, reducing morbidity and mortality, hospitalization, inactivity time and minimizing cost, as well as providing adequate oncological results when compared to the conventional approach. Robotic surgery, with Da Vinci Platform, emerges as a step ahead for its potentials. The objective of this article is to report the single institutional experience with the use of Da Vinci Platform in robotic colorectal surgeries performed at a reference center in oncological surgery in Brazil. Materials and methods: A retrospective cohort study was conducted based on the prospective database of patients from the institution submitted to robotic surgery for treatment of colorectal cancer from July 2012 to September 2017. Clinical and surgical variables were analyzed as predictors of morbidity and mortality. Results: A total of 117 patients underwent robotic surgery. The complications related to surgery occurred in 33 patients (28%), the most frequent being anastomotic fistula and surgical wound infection, which corresponded to 11% and 3%, respectively. Conversion rate was 1.7%. Median length of stay was 5 days. The only variable associated with increase of complications and death risk was BMI >30, with p-value of 0.038 and 0.027, respectively. Conclusion: Robotic surgery is safe and feasible for approaching colorectal cancer surgeries, presenting satisfactory results regarding length of hospital stay and rate of operative complications, as well as presenting a low rate of conversion. Obesity has been shown to be a risk factor for surgical complication in robotic colorectal surgery.

RESUMO Introdução: A cirurgia minimamente invasiva revolucionou o tratamento cirúrgico no manejo das neoplasias colorretais, reduzindo a morbidade e mortalidade, a hospitalização, o tempo de inatividade e minimizando os custos, além de fornecer resultados oncológicos adequados quando comparada à abordagem convencional. A cirurgia robótica, com a Plataforma Da Vinci, surge como um passo à frente por seus potenciais. O objetivo deste artigo é relatar a experiência institucional única com o uso da Plataforma Da Vinci em cirurgias robóticas colorretais realizadas em um centro de referência em cirurgia oncológica no Brasil. Materiais e métodos: Foi realizado um estudo de coorte retrospectivo, baseado na base de dados prospectiva de pacientes da instituição que foram submetidos à cirurgia robótica para tratamento de câncer colorretal, de julho de 2012 a setembro de 2017. As variáveis clínicas e cirúrgicas foram analisadas como preditores de morbidade e mortalidade. Resultados: Um total de 117 pacientes foram submetidos à cirurgia robótica. As complicações relacionadas à cirurgia ocorreram em 33 pacientes (28%), sendo as mais frequentes fístula anastomótica e infecção da ferida cirúrgica, correspondendo a 11% e 3%, respectivamente. A taxa de conversão foi de 1,7%. O tempo mediano de permanência foi de 5 dias. A única variável associada ao aumento de complicações e risco de óbito foi o IMC >30, com p-valor de 0,038 e 0,027, respectivamente. Conclusão: A cirurgia robótica é segura e viável para a abordagem de cirurgias de câncer colorretal, apresentando resultados satisfatórios quanto ao tempo de internação hospitalar e taxa de complicações operatórias, além de apresentar baixo índice de conversão. A obesidade tem se mostrado um fator de risco para complicações cirúrgicas na cirurgia colorretal robótica.