Dr. Shariati Hospital, North Kargar Ave. Tehran, Iran
Background- Because of simplicity of application, universal access and low cost, centrifugal pumps are commonly used for short-term mechanical cardiac assist. Indications and techniques for the application of this technology continue to evolve.
The study was undertaken to determine the advantages of the centrifugal pump over the roller pump, concerning effects on blood elements and some clinical outcomes.
Method and Result- A total of 149 patients undergoing cardiopulmonary bypass (CPB) were studied prospectively. They were divided into two groups; group A were perfused with a centrifugal pump during surgery, and group B were perfused with a roller pump. We compared blood elements (RBC, WBC, Hg and platelets) and renal function tests including BUN and creatinine, duration of cross clamp, bypass time and duration of hospital stay in these two groups.
Conclusion- The group that was perfused with a centrifugal pump had a statistically significant decrease in changes in their blood elements, and shorter duration of recovery and hospital stay.