Impact of perioperative transfusion in patients undergoing resection of colorectal cancer liver metastases: A population-based study.

Background: Perioperative allogeneic blood transfusion is associated with poorer outcomes.

Aim: To identify the factors that were associated with perioperative transfusion and to examine the impact of perioperative transfusion in patients undergoing resection of colorectal cancer (CRC) liver metastases.

Methods: The United States National Inpatient Sample (NIS) database was searched for patients with CRC who received surgery for liver metastasis.