Surgical treatment of deep pelvic endometriosis with colorectal involvement Introduction: In endometriosis, intestinal involvement affects up to 12% of patients, compromising the rectum and the rectosigmoid junction in 90% of cases. Aim: Describe the experience of the Coloproctolgy and Gynecology Team of the Clínica Alemana de Santiago in the surgical treatment of deep pelvic endometriosis with colorectal involvement. Materials and Methods: Retrospective study based on the database of patients with endometriosis treated between January 2015 and April 2018. The inclusion criteria were patients with deep pelvic endometriosis clinic, who had colorectal involvement and who had been treated with rectal shaving, discoid resection or segmental resection. Electronic clinical records, operative protocols and definitive biopsies were reviewed. Results: Twenty-five patients with a median age of 35 years were recruited. The main symptom of consultation was dysmenorrhoea and the most frequent digestive symptom was dyschezia. In 8 patients a rectal shaving was performed, in 7 a sigmoidectomy, in 9 a discoid resection and in 1 patient a tiflectomy. The only reported post-operative complication was low gastrointestinal bleeding in 4 of the 25 patients (Clavien-Dindo I and IIIa). A median follow-up of 13 months was achieved, to date 3 patients have been diagnosed with some type of recurrence. Conclusion: It is important that the surgery to be performed guarantees low morbidity and recurrence. The results in our center are encouraging, which makes us believe that surgical treatment could be a good alternative in deep pelvic endometriosis with colorectal involvement.
Response of the primary tumor to chemotherapy in stage IV colorectal cancer with synchronous liver metastases. Serie of cases Introduction: Colorectal cancer has become the third cancer worldwide in terms of incidence and fourth in mortality. At diagnosis approximately 25% of patients will have liver metastases. With adequate treatment, the prognosis of stage IV patients reaches a survival of 40% at 5 years. We want to evaluate the response of the primary tumor of the colon from imaging and anatomopathological point of view in patients with colorectal cancer with liver metastases treated with chemotherapy and who then went to colon resection. Materials and Method: It is a retrospective and descriptive study of patients with stage IV colorectal cancer. The inclusion criteria were that they had cancer of the colon or upper rectum, with synchronous liver metastases, who have received at least 4 cycles of neoadjuvant chemotherapy and that subsequently went to resection of the primary tumor. Results: We recruited 9 patients, 4 men and 5 women. All received 4 or more cycles of chemotherapy prior to primary surgery. Of these, 8 had imaging control after chemotherapy. According to RECIST criteria, 3 patients presented complete response, 1 patient partial response and 4 stable disease. The anatomopathological study of the resected colon showed a macroscopic tumor disappearance in 2 patients, and microscopic in 1 patient. Conclusions: The complete pathological regression in our cases treated with neoadjuvant chemotherapy is a rare occurrence. This allows us to indicate the resection of the colorectal tumor site in all these cases.
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