Long-term and short-term outcomes of laparoscopic versus open resection following tube decompression for obstructive colorectal cancer: a single-center retrospective study

Effect of the lymphocyte-to-monocyte ratio on the prognosis of patients with obstructive colorectal cancer with a colonic stent: a retrospective multicenter study in Japan

PURPOSE

The prognostic value of the lymphocyte-to-monocyte (LMR) ratio has been reported for various cancers, including colorectal cancer (CRC). The insertion of colonic stents is considered effective for patients with surgically indicated obstructive CRC, but their LMR can vary depending on factors such as inflammation associated with stent dilation and improvement of obstructive colitis. However, the usefulness of the LMR in patients with obstructive CRC and colonic stents and the optimal timing for its measurement remain unclear. We conducted this study to investigate the relationship between the pre-stent LMR and the mid-term prognosis of patients with obstructive CRC and stents as a bridge to surgery (BTS).

METHODS

The subjects of this retrospective multicenter study were 175 patients with pathological stage 2 or 3 CRC. Patients were divided into a low pre-stent LMR group (n = 87) and a high pre-stent LMR group (n = 83).

RESULTS

Only 3-year relapse-free survival differed significantly between the low and high pre-stent LMR groups (39.9% vs. 63.6%, respectively; p = 0.015). The pre-stent LMR represented a prognostic factor for relapse-free survival in multivariate analyses (hazard ratio 2.052, 95% confidence interval 1.242-3.389; p = 0.005), but not for overall survival.

CONCLUSIONS

A low pre-stent LMR is a prognostic factor for postoperative recurrence in patients with obstructive CRC and a colonic stent as a BTS.

LapEmerge trial: study protocol for a laparoscopic approach for emergency colon resection-a multicenter, open label, randomized controlled trial

BACKGROUND

Due to faster recovery and lower morbidity rates, laparoscopy has become the gold standard in elective colorectal surgery for both the benign and malignant forms of the disease. A substantial proportion of colorectal operations are, however, carried out in emergency settings, and most of the emergency resections are still performed open. The aim of this study is to compare the laparoscopic versus open approach for emergency colorectal surgery.

METHOD/DESIGN

This is a multicenter prospective randomized controlled trial including adult patients presenting with a condition requiring emergency colorectal resection.

DISCUSSION

Previous studies cautiously recommend wider use of laparoscopy in emergency colorectal resections, but all earlier reports are retrospective, are mostly single-center studies, and have limited numbers of patients. Laparoscopy may involve some unpredictable risks that have not yet been reported because of the infrequent use of the techniqueded to assess the safety of laparoscopy as well as the advantages and disadvantages of open compared with laparoscopic emergency surgery.

TRIAL REGISTRATION

Trial registration number:  ClinicalTrials.gov   NCT05005117 . Registered on August 12, 2021.