Long-term Oncologic Outcomes of Laparoscopic Anterior Resections for Cancer with Natural Orifice Versus Conventional Specimen Extraction: A Case-Control Study
Autor: | William Tzu-Liang Chen, Sheng-Chi Chang, Hwei-Ming Wang, Yi-Chang Chen, Hung-Chang Chen, Yuan-Yao Tsai, Abe Fingerhut, Tao-Wei Ke |
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Rok vydání: | 2020 |
Předmět: |
Male
Natural Orifice Endoscopic Surgery medicine.medical_specialty Natural orifice Disease-Free Survival 03 medical and health sciences 0302 clinical medicine Outcome Assessment Health Care medicine Humans Propensity Score Aged Neoplasm Staging Retrospective Studies Gynecology business.industry Rectal Neoplasms Gastroenterology Cancer General Medicine Middle Aged medicine.disease Sigmoid Neoplasms 030220 oncology & carcinogenesis Case-Control Studies 030211 gastroenterology & hepatology Female Laparoscopy Neoplasm Recurrence Local business Colorectal Neoplasms Follow-Up Studies |
Zdroj: | Diseases of the colon and rectum. 63(8) |
ISSN: | 1530-0358 |
Popis: | BACKGROUND Although the short-term advantages of natural orifice specimen extraction are widely recognized, controversy exists concerning oncologic safety after laparoscopic surgery for colorectal cancer. OBJECTIVE This study aimed to investigate the impact of natural orifice specimen extraction on local recurrence and long-term survival of patients undergoing colorectal cancer surgery. DESIGN This is a propensity score-matched comparative study. SETTING This study presents a single-center experience. PATIENTS We retrospectively analyzed the records of patients who underwent curative laparoscopic anterior resection for American Joint Committee on Cancer stage I to III sigmoid or upper rectal cancer in 2011 to 2014, based on prospectively collected data. INTERVENTIONS Oncologic outcomes were compared between patients undergoing natural orifice or conventional specimen extraction by minilaparotomy. Patients were matched 1:1 according to propensity scores calculated by logistic regression analysis with the following covariates: American Joint Committee on Cancer stage, tumor diameter, age, sex, BMI, and T stage. Cox proportional hazards regression analysis was performed to determine the impact on oncologic outcome. MAIN OUTCOME MEASURES The primary outcomes measured were local recurrence and disease-free survival rates at 5 years. RESULTS Of 392 eligible patients, 188 were matched (94 undergoing natural orifice specimen extraction and 94 undergoing conventional extraction by minilaparotomy). Median follow-up was 50.3 months. The cumulative local recurrence risk at 5 years was 2.3% and 3.5% (p = 0.632), whereas 5-year disease-free survival for all tumor stages combined was 87.3% and 82.0% (p = 0.383) in laparoscopic anterior resection with natural orifice specimen extraction and conventional extraction groups. T3 and T4 stages were the only variables independently associated with disease-free survival. LIMITATIONS This study was limited because it focused on a single center, was a retrospective analysis, contained no long-term anorectal function testing, and had a small sample size. CONCLUSION Long-term oncologic outcomes of patients undergoing laparoscopic anterior resection with natural orifice specimen extraction for sigmoid and upper rectal cancer do not differ from those undergoing conventional extraction. Thus, natural orifice specimen extraction could be a viable alternative to reduce abdominal wall insult in laparoscopic colorectal operations for malignancy in selected patients. See Video Abstract at http://links.lww.com/DCR/B241. RESULTADOS ONCOLOGICOS A LARGO PLAZO DE RESECCIONES ANTERIORES LAPAROSCOPICAS PARA CANCER A TRAVES DE ORIFICIO NATURAL FRENTE A EXTRACCION CONVENCIONAL DEL ESPECIMEN: UN ESTUDIO DE CASOS Y CONTROLES: Si bien las ventajas a corto plazo de la extraccion de especimenes por orificio natural son ampliamente reconocidas, existe controversia con respecto a la seguridad oncologica despues de la cirugia laparoscopica para el cancer colorrectal.Investigar el impacto de la extraccion de especimenes por orificio natural en la recurrencia local y la supervivencia a largo plazo de pacientes sometidos a cirugia de cancer colorrectal.Estudio comparativo con emparejamiento por puntuacion de propension.Experiencia en un centro unico.Analizamos retrospectivamente los registros de pacientes que se sometieron a reseccion anterior laparoscopica curativa para cancer sigmoideo o rectal superior AJCC en estadio I-III en 2011-2014, con base en datos recolectados prospectivamente.Los resultados oncologicos se compararon entre pacientes sometidos a extraccion por orificio natural o convencional mediante minilaparotomia de especimenes. Los pacientes fueron emparejados 1:1 de acuerdo con los puntajes de propension calculados por analisis de regresion logistica con las siguientes covariables: estadio AJCC, diametro del tumor, edad, sexo, indice de masa corporal y estadio T. Se realizo un analisis de regresion de riesgos proporcionales de Cox para determinar el impacto en el resultado oncologico.Recurrencia local y tasas de supervivencia libre de enfermedad a los 5 anos.De 392 pacientes elegibles, 188 fueron emparejados (94 sometidos a extraccion de especimen por orificio natural y 94 a extraccion convencional por minilaparotomia). La mediana de seguimiento fue de 50.3 meses. El riesgo cumulativo de recurrencia local a 5 anos fue de 2.3% y 3.5% (p = 0.632), mientras que la supervivencia libre de enfermedad a 5 anos para todas las etapas tumorales combinadas fue de 87.3% y 82.0% (p = 0.383) en los grupos de reseccion anterior laparoscopica con extraccion de especimen por orificio natural y extraccion convencional, respectivamente. Las etapas T3 y T4 fueron las unicas variables asociadas independientemente con la supervivencia libre de enfermedad.Centro unico, analisis retrospectivo, ausencia de pruebas de funcion anorrectal a largo plazo y tamano de muestra pequeno.Los resultados oncologicos a largo plazo de los pacientes sometidos a reseccion anterior laparoscopica con extraccion de especimen por orificio natural para cancer sigmoideo y rectal superior no difieren de los de aquellos sometidos a extraccion convencional. Por lo tanto, la extraccion de especimenes por orificio natural podria ser una alternativa viable para reducir el insulto a la pared abdominal en operaciones colorrectales laparoscopicas por malignidad en pacientes selectos. Consulte Video Resumen en http://links.lww.com/DCR/B241. |
Databáze: | OpenAIRE |
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