Perforated colorectal cancers; clinical outcomes of 18 patients who underwent emergency surgery

Introduction
Although colon cancer perforations are rare among acute abdominal syndromes, it is a clinical picture with high mortality that requires urgent treatment. Aim: In this study, the clinical results of patients who were operated in emergency conditions due to colorectal cancer perforation were evaluated.

Material and methods
The data of 18 patients treated for colorectal cancer perforation in our clinic between February 2014 and February 2017 were retrospectively reviewed. The following data were evaluated: demographic features of the patients, location of the tumour, metastasis, stage of the tumour, number of lymph nodes dissected, survival, type, and prognosis of the surgery.

Results
Eight (44%) of 18 patients with perforated colon cancers were female and 10 (56%) were male. The mean age was 65.2 (31–104) years. Four of the patients had liver metastasis only, and 5 had multiple metastases. All cases had sudden abdominal pain and acute abdominal clinical findings. Fourteen of the patients underwent full resection, and 4 of them underwent partial resection and trephine stoma (colostomy). Perioperative mortality was not observed. The long-term mortality rate in our study was 77.7% (n = 14), and the operative mortality rate was 44% (n = 8). Additional organ injuries occurred during resection in 2 patients.

Conclusions
Colorectal cancer perforation seen in advanced ages is one of the causes of acute abdominal syndrome, which can be fatal. The general condition of the patient and the size and localization of the perforation should be taken into consideration in the choice of treatment. Curative surgery can also be performed in perforated colorectal cancers. However, partial resection and trephine colostomy should be performed in patients with multiple metastases and poor general condition.