Introduction
Anaemia is associated with increased morbidity, mortality, length of stay, requirement for blood transfusion. Early differential diagnosis of anaemia may expedite treatment and outcome in the perioperative setting. The aim of our study was to create simplified diagnostic algorithm for classification of anaemia based on complete blood count and test its applicability in elective gastrointestinal surgical population.
Material and methods
Selected red blood cell (RBC) parameters derived from CBC test performed by the Central Laboratory of the University Clinical Centre of Medical University of Silesia, Katowice, Poland were reviewed retrospectively for the group of 442 consecutive patients scheduled for elective, high-risk (according to) GI surgery between January 2016 and August 2018. Based on pathophysiologic data we created a simplified diagnostic algorithm for classification of preoperative anaemia and applied it to the study population.
Results
Using the cut-off value of 130 g L-1 for both sexes, anaemia was diagnosed in 166 patients (37.5%). As many as 29 (17.5%) anaemic patients had aetiology of anaemia accurately established by using our simplified diagnostic algorithm – either iron or vitamin B12/folate deficiency.
Discussion
Preoperative anaemia is common in elective gastrointestinal surgery. Simplified diagnostic algorithm based solely on complete blood count parameters might be helpful in the preliminary identification of patients with iron and vitamin B12/folic acid deficiencies so haematinic supplementation can be started early.
Introduction The aim of the study was to analyse prognostic value of laboratory markers of nutritional status in gastrointestinal surgery. Methods We performed a retrospective analysis of clinical and laboratory data of 102 patients admitted to an Intensive Care Unit following elective gastrointestinal surgery. The outcome measures included hospital mortality, infectious complications, surgical complications and length of stay. Results Forty-eight patients had all three laboratory markers of nutritional status determined before surgery and these patients constituted our study group. We found correlations between preoperative serum albumin and hospital mortality, risk of reoperation and urinary tract infection. Preoperative total serum protein correlated with urinary tract infection. Total lymphocyte count was predictive of bacteraemia. No statistically significant correlations were found between markers of nutritional status and length of stay. Conclusions Serum albumin concentration at the lower limit is associated with increased mortality, reoperation, urinary tract infection. Total serum protein predicts urinary tract infection, whereas total lymphocyte count predicts bacteraemia.
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