Patients whom meet all eligibility criteria will be assigned random 1:1 to one of the following arms:
* ECPS group: Echelon Circular™ Powered Stapler (n=270) * MCS Group: manual circular staplers (n=270) Patients will be followed during 30 days in order to evaluate the primary endpoint.
Patient or its legal representative informed consent.
Age ≥ 18 years.
Patients who will undergo a colorectal anastomosis after left colectomy, sigmoidectomy or anterior rectal resection, for benign or malignant pathology (NOTE: Hartmann reversal cases also included).
Diverting stoma.
Emergency surgery.
American Society of Anaesthesiologists (ASA) score ≥ IV.
Transanal total mesorectal excision approach.