Terumo Cardiovascular Systems

Terumo’s Perfusion Clinical Specialist team is another demonstration of Terumo’s commitment to the perfusion community:

Fully-resourced team:

For a decade, Terumo has continued to increase the number of Clinical Specialists on its team—they can respond more quickly and focus more fully on the needs of each customer.

Years of experience:

The team has 150 years of combined clinical, technical and scientific expertise.

Hundreds of O.R.s visited annually:

Their knowledge is based on practical experience.

Full-time focus:

All Terumo Clinical Specialists are dedicated full-time to the clinical support of Terumo products. They provide clinical input during new product development, support clinical trials and laboratory studies, and design training programs.

No other manufacturer provides the same depth and breadth of clinical support. 1

Question of the Quarter

 

    • July 2009

      What is the maximum pressure generated by your centrifugal heads and what is your tested burst pressure for your XCoated tubing?

    • The maximum pressure generated by the Sarns™ Disposable Centrifugal Pump is 700 mmHg at the maximum flow of approximately 9.9LPM. This was determined according to the simplified Ohm’s law of P (pressure) = Q (flow) x R (resistance) by establishing a maximum speed of 3600 rpms and maximizing the line resistance of a primed circuit.

      Terumo does not actually test burst (rupture) pressure for the tubing with XCoating™ surface coating-- or any raw PVC tubing. However, all of Terumo’s tubing, whether coated or non-coated, will withstand the AAMI’s recommendation of 1.5 times the maximum circuit pressure, or 1500 mmHg.

      Terumo offers two comparable centrifugal pumps: the CAPIOX® Disposable Centrifugal Pump and the Sarns® Disposable Centrifugal Pump – both available with or without XCoating.

      A study by Morgan, et al, determined that the centrifugal pump results in less blood trauma, reduced platelet activation and less pronounced inflammatory response when compared to a roller pump. The authors also found an improved renal response during and after bypass. This is translated clinically into reduced requirement for ventilation, shorter intensive care and hospital stays. They concluded that these results strongly favor the use of centrifugal pump in routine pediatric cardiac surgery.1

      A more recent study by Murphy, et al, concluded that although there are theoretical advantages to centrifugal blood pumps over roller pumps, it is difficult to demonstrate that the use of centrifugal pumps improves clinical outcomes. The researchers said there is limited data to make a strong recommendation, and there is a need for randomized trials assessing clinically significant outcomes.2

      1. Morgan, I, et al. Superiority of centrifugal pump over roller pump in paediatric cardiac surgery: prospective randomised trial, Eur J Cardiothorac Surg, 1998;13:526-532.

      2. Murphy, G, et al. Optimal Perfusion During Cardiopulmonary Bypass: An Evidence-Based Approach. Anesth Analg, 2009:108 (5), 1394-417.

       

       

       

       

       

       

       

1. This describes the Terumo Perfusion Clinical Support Team in the United States.