This Study Has Been Designed to Support the Working Hypothesis That Emergency Surgery in a Colon Obstruction Neoplasm is Better Than Stent Bridge Due to Better Oncological Outcomes, Analyzing the Importance of ERAS Programs in Emergency Colon Obstruction Surgery.

Inclusion criteria

• All adult patients (aged >18 years) with a diagnosis of Malignant obstruction colorectal cancer. Informed consent will be obtained from all subjects who will participate in the study voluntarily.
• ASA I, II and III
• No more than 5 days from symptoms onset.
• Absence of proximal colon severe dilatation( no more than 8 centimeters), severe malnutrition.
• No Inmunocompromised patients
• Patients suffer from segmentary colectomy, with or without anastomosis with o witjhout lateral ileostomy
• Patients suffer from Hartmann procedure.

Exclusion criteria

• Patient refusal.
• Patients under 18 years of age.
• ASA IV
• Stent placement
• ICU stay more than 2 days
• Peritonitis
• Out of protocol if patient would need total parenteral nutrition(NPT) during postoperative or Clavien-Dindo more or equal than II.