Introduction: Cardiovascular surgery is one of the specialties with the highest demand for allogeneic hemo-components, due to its complexity and type of pathologies, added to the exposure of the patient to the alteration of coagulation physiology with extracorporeal circulation, this influences the increase of bleeding and consequently increases the use of blood units and blood derivatives. The blood- saving techniques Acute Normovolemic Hemodilution (ANH), autologous retro purging (APR), and cell salvage (CS) are a set of multimodal techniques that allow the conservation of autologous blood intending to reduce the use of blood transfusions in the patient undergoing cardiovascular surgery. Objective: to analyze the results of intraoperative blood-saving techniques and their relationship with transfusion requirements in patients undergoing cardiovascular surgery in a high-complexity institution in the city of Bogota 2019-2021. Methodology: a quantitative, single-center, analytical observational cross-sectional study will be carried out. It will include 138 elderly patients operated on by the cardiovascular surgery service of Los Cobos Medical Center in the period from March 2019 to December 2021. Variables related to the clinical characteristics of the patients and the use of hemocomponents will be measured. Descriptive statistics will be applied, and hypothesis tests of comparison of proportions and confidence intervals for the estimators, the statistical significance value is 0.05. Results: Among the most relevant findings, it was identified that, in the center's experience, HNA was one of the most widely used blood-saving techniques, with an average recovery of between 300 and 1200 mL. Concerning re-interventions due to bleeding, the highest prevalence was found in patients who underwent CS. Discussion: Blood conservation in cardiac surgery using blood-saving techniques requires more effort and a team approach, which will allow the reduction of complications due to allogeneic transfusion, cost reduction, and better use of blood components available in the institution.