[Hemolysis in blood samples. Assessment in 3 extraction systems]

Area of Science:

• Clinical Pathology
• Laboratory Medicine
• Phlebotomy Techniques

Background:

• Vacuum-assisted blood collection systems offer enhanced safety over traditional syringes.
• The Holdex de Vacuette system combines features of both syringe and vacuum methods.
• Concerns exist regarding potential increased hemolysis with the Holdex system due to its design.

Purpose of the Study:

• To evaluate if the Holdex de Vacuette system causes a higher incidence of hemolysis compared to conventional vacuum systems and syringes.
• To assess the safety and efficacy of the Holdex de Vacuette for routine blood sample collection.

Main Methods:

• A comparative study involving 512 patients undergoing routine biochemical analysis.
• Patients were randomly assigned to three blood collection groups: Holdex de Vacuette (n=171), Vacutainer (vacuum system, n=168), and traditional syringe (n=173).
• Hemolysis rates for each method were recorded and statistically compared to each other and to the overall study period's rates.

Main Results:

• No statistically significant difference in hemolysis rates was observed among the three blood collection methods.
• Hemolysis rates were: Holdex de Vacuette (2.1% or 16 cases), Vacutainer (2.1% or 15 cases), and syringe (4.2% or 23 cases).
• The overall study group's hemolysis rate (1.56%) was not significantly different from the total samples analyzed (2.02%).

Conclusions:

• The Holdex de Vacuette blood collection system does not lead to a higher incidence of hemolysis.
• This system is a viable and safe alternative to conventional vacuum systems for blood sample collection.
• Proper blood collection techniques are crucial for minimizing pre-analytical errors and ensuring sample integrity.