Postoperative Haematocrit and Outcome in Critically Ill Surgical Patients

Abstract

Haematocrit has been studied as an outcome predictor. The aim of this study was to evaluate the correlation between low haematocrit at surgical intensive care unit admission and high disease scoring system score and early outcomes. Material and Methods: This retrospective study included 4398 patients admitted to the surgical intensive care unit between January 2006 and July 2013. Acute physiology and chronic health evaluation and simplified acute physiology score II values were calculated and all variables entered as parameters were evaluated independently. Patients were classified as haematocrit if they had a haematocrit < 30% at surgical intensive care unit admission. The correlation between admission haematocrit and outcome was evaluated by univariate analysis and linear regression.Results: A total of 1126 (25.6%) patients had haematocrit. These patients had higher rates of major cardiac events (4% vs 1.9%, p < 0.001), acute renal failure (11.5% vs 4.7%, p < 0.001), and mortality during surgical intensive care unit stay (3% vs 0.8%, p < 0.001) and hospital stay (12% vs 5.9%, p < 0.001). Discussion: A haematocrit level < 30% at surgical intensive care unit admission was frequent and appears to be a predictor for poorer outcome in critical surgical patients. Conclusion:Patients with haematocrit had longer surgical intensive care unit and hospital stay lengths, more postoperative complications, and higher surgical intensive care unit and hospital mortality rates.

The Effect of Perioperative Iron Therapy in Acute Major Non‐cardiac Surgery on Allogenic Blood Transfusion and Postoperative Haemoglobin Levels: A Systematic Review and Meta‐analysis

“…Perioperative anaemia in relation to major surgery is associated with adverse outcomes in terms of increased risk of 30‐day mortality, increased postoperative length of stay (LOS), as well as a higher complication rate [1, 2]. To counteract perioperative anaemia, allogenic blood transfusion (ABT) is often used; however, this practice may lead to adverse outcomes and has been found to be a significant contributor to the increased morbidity in acute surgical patients [3, 4].…”