Ressecções colorretais laparoscópicas e laparotômicas no câncer colorretal

Abstract

-Background -Surgical resection is the mainstay of treatment for colorectal cancer with curative intent. Aim -To evaluate the postoperative results of laparoscopic and laparotomic colorectal resections for colorectal cancer. Methods -A retrospective study of a series of 189 patients. The descriptive variables were age and gender, and for outcome were type of resection, number of lymph nodes resected, free margins, the need for colostomy, complications, operative time and hospital stay. They were analyzed using the chi-square, In both pathways, the average number of removed lymph nodes was greater than 12, but laparotomy enabled, more frequently, the resection of 12 or more nodes (p = 0.012). No patient had surgical margins involved, but laparotomy allowed a greater number of patients with a margin greater than 5 cm from the tumor (p = 0.036). Increased number of patients treated by open surgery were hospitalized for more than seven days (p <0.001). There were no statistically significant differences regarding the need for ostomies, complications and mortality. Conclusions -The laparoscopic approach was as safe and effective as laparotomy in the treatment of colorectal cancer, and was associated with increased operative time, shorter hospital stay and less morbidity. ABCDDV/847RESUMO -Racional -A ressecção cirúrgica é o principal elemento do tratamento do câncer colorretal com intenção curativa. Objetivo -Analisar os resultados pós-operatórios de ressecções colorretais laparotômicas e videolaparoscópicas por câncer colorretal. Métodos -Estudo retrospectivo de uma série de 189 pacientes operados. As variáveis descritivas foram idade e gênero, e as de desfecho foram tipo de ressecção, número de linfonodos ressecados, margens, necessidade de ostomia, complicações, tempo operatório e tempo de internação. Elas foram analisadas por meio dos testes do Qui-quadrado, t de student e Mann-Whitney, com nível de significância <0,05. Resultados -Dos 189 pacientes operados, 110 preencheram os critérios de inclusão, sendo 75 (68,2%) operados por cirurgia aberta e 35 (31,8%) por via videolaparoscópica. O cólon sigmóide foi o local mais comum de apresentação da neoplasia e a retossigmoidectomia foi a ressecção colorretal mais realizada, e mais por via aberta (p=0,042). A taxa de conversão foi de 7,9% (3/38). Os pacientes operados por via aberta apresentaram em 81,5% tempo operatório inferior a 180 minutos (p<0,001). Em ambas as vias, o número médio de linfonodos ressecados foi maior que 12, porém a técnica laparotômica permitiu, com maior frequência, a ressecção de 12 ou mais linfonodos (p=0,012). Nenhum paciente apresentou margem cirúrgica comprometida, mas a laparotomia permitiu um maior número de pacientes com margem maior que 5 cm em relação ao tumor (p=0,036). Maior número de pacientes tratados por via aberta esteve internado por tempo superior a sete dias (p<0,001). Não foram encontradas diferenças estatisticamente significantes quanto à necessidade de ostomias, complicações e mortalidade hospitalar. Conclusões -A a...

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