Study Confirms that the VirtuoSaph® Endoscopic Vein Harvesting System Minimizes Thermal Spread in Harvested Conduits

Ann Arbor, Michigan — August 16, 2011 — A recent clinical study entitled "Quantification of Thermal Spread and Burst Pressure After Endoscopic Vessel Harvesting: A Comparison of Two Commercially Available Devices” was published in the July 2011 edition of The Journal of Thoracic and Cardiovascular Surgery, Volume 142, Number 1. JCTVS is the official publication of the American Association for Thoracic Surgery. JCTVS presents original, peer-reviewed articles on conditions of the chest, heart, lungs, and great vessels where surgical intervention is indicated. Alvaro Rojas-Pena, MD, Research Investigator with the Section of General Surgery and the Division of Transplantation at University of Michigan Health Systems led the study.


About the Study

This study investigated the extent of thermal injury caused by two commercially available endoscopic vessel harvesting (EVH) systems in a porcine (pig) model. It has been proposed that EVH negatively affects graft quality due to irreversible thermal trauma to the endothelium. The two systems used in the study were the VirtuoSaph® Endoscopic Vein Harvesting System (Terumo Cardiovascular, Ann Arbor, MI) and the VASOVIEW 6 Endoscopic Vessel Harvesting System (MAQUET, Inc, Wayne, NJ).

Study highlights included:

  • When the VirtuoSaph system was used to harvest the saphenous vein, 21 of 83 samples had no endothelial injury compared with only 3 of 79 samples in the VASOVIEW 6 group. Additionally, the average length of thermal spread was significantly shorter (P<.05) in the VirtuoSaph system group (0.49±0.05mm) than in the VASOVIEW 6 group (0.94±0.19 mm).



"As discussed above, the VirtuoSaph system resulted in a significantly smaller amount of thermal spread than the VASOVIEW 6 system” stated Dr. Rojas-Pena. "We found that the length of thermal injury was significantly lower for arterial and venous conduits when the VirtuoSaph device was used”. Additionally, the author went on to note that no significant differences were found in burst pressure.


About Terumo Cardiovascular Systems

Terumo Cardiovascular Systems Corporation manufactures and markets medical devices for the global cardiac surgery market. The company is headquartered in Ann Arbor, Michigan with manufacturing operations in Ann Arbor; Elkton, Maryland; and Ashland, Massachusetts. It is one of several subsidiaries of Terumo Corporation of Japan that is focused exclusively on cardiac and vascular specialties. Terumo CVS entered into consent decree with FDA regarding improvements to the Quality System at its Ann Arbor manufacturing facility. For more information, visit www.terumo-cvs.com.


About Terumo Corporation

Terumo Corporation is a premier global medical device company with annual sales of more than 3.4 billion dollars for the fiscal year ending March 31, 2010. Founded in 1921, the company develops, manufactures and distributes world-class medical devices, such as syringes, blood bags and IV solutions. Terumo has the biggest share of the world markets for angiography guide wires and perfusion products and is a leading developer of interventional products, such as catheters and stents. For more information, visit www.terumo.com.

Media Contact:

Rohini Rebello-D'Souza Global Sr. Product Manager Terumo Cardiovascular Systems Corp. (734) 741-6054