Related Experiment Video
Updated: May 27, 2025

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
Postoperative anaemia is associated with poor long term postoperative outcomes after elective colorectal oncologic
J Ripollés-Melchor1, A Abad-Motos2, M L Fuenmayor-Valera3
1Infanta Leonor University Hospital, Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain; Fluid Therapy and Hemodynamic Monitoring Group of the Spanish Society of Anesthesiology and Critical Care (SEDAR), Madrid, Spain.
Background:
Anaemia is an independent risk factor for poor perioperative outcomes after major abdominal surgery, and is associated with an increased risk of 30-day postoperative mortality after noncardiac surgery.
Objective:
To investigate the frequency of postoperative anaemia and short- and long-term survival after colorectal oncologic surgery at a centre with a well-established Enhanced Recovery After Surgery (ERAS) program.
Methods:
We conducted a retrospective cohort study of all patients undergoing elective colorectal oncologic surgery within an ERAS pathway at our institution between 2013 and 2017. Overall survival was calculated with the Kaplan-Meier log rank method and Cox proportional hazard regression based on anaemia at hospital discharge.
Results:
A total of 680 patients were included. Patients with anaemia at discharge showed a lower overall survival at 5 years (53.9% vs. 44%, p 0.05). Patients who were anaemic at discharge had a lower 5-year overall survival (hazard ratio [HR] 95% CI 2.663 [1.619-4.379], p < 0.001). Kaplan-Meier survival and Cox regression proportional hazard survival for overall survival in the combined preoperative, postoperative, and RBC transfusion model were 1.55 (1.038 2.318) p = 0.032.
Conclusions:
The combined prognostic value of preoperative anaemia, postoperative anaemia, and blood transfusion created a 40.7% higher risk of not surviving 5 years.
Related Concept Videos
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Endoscopic Procedures II: Colonoscopy
Appendicitis-II: Diagnostic Studies and Management
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD:

