Universities of Florida and Colorado to Present Accuracy Comparison of Invasive Intra-Arterial Catheter with Non-Invasive Tensys® T-Line® at American Society of Anesthesiologists Annual Meeting

Non-Invasive, Continuous, Real-Time Blood Pressure Monitor Found Clinically Equivalent to A-line in Two Separate Studies

San Diego, CA | September 8, 2003 /PRNewswire/ -- Anesthesiologists from Shands Hospital at the University of Florida (Gainesville) and the University of Colorado (Denver) will present two promising studies comparing the accuracy of the traditional, invasive intra-arterial A-line with the Tensys® T-Line®, a non-invasive, continuous, real-time blood pressure monitor, at the American Society of Anesthesiologists Annual Meeting in San Francisco. The poster sessions will be in the Moscone Center, Room 307 from 9:00-10:00am PT on October 14, 2003.

Gregory Janelle, M.D. and Nikolaus Gravenstein, M.D. will present a 25-adult patient study on behalf of the University of Florida and Leslie Jameson, M.D. will represent the University of Colorado based on studies conducted on 16 adult patients. Data from both studies demonstrated that T-Line® had clinically equivalent accuracy to the A-line without the associated risks of invasive cannulation. In addition, the University of Florida's study showed that the T-Line® required less time to acquire a real-time, high-fidelity waveform.

"The Tensys® T-Line® is a novel, beat-to-beat, and non-invasive blood pressure (BP) monitoring device that requires less time to signal acquisition than the invasive A-line and yields data comparable to an A-line over a wide range of BPs without any of the complications related to placement and insertion of an indwelling arterial catheter," commented Gregory Janelle, M.D., Chief, Division of Cardiothoracic Anesthesiology, University of Florida, Gainesville.

Leslie Jameson, M.D., Vice Chair, Anesthesiology, University of Colorado, added, "Intra-arterial BP monitoring (IABP) is the standard method to provide continuous and accurate BP monitoring. Complications, time for placement and patient discomfort make an alternative method to obtain continuous and accurate BP values highly desirable. The results of our study comparing the T-Line® to a contra-lateral A-line reference, demonstrate the T-Line® as an accurate and viable new method of non-invasively monitoring blood pressure in real time."

Tensys® Medical (www.tensysmedical.com), the leader in real-time blood pressure management, began commercialization of the Tensys® T-Line® in March 2003. The T-Line is an FDA-cleared medical device that provides anesthesiologists better, more effective control over patient safety during surgery by allowing them to quickly monitor and manage blood pressure variations.

There are currently two primary methods used by anesthesiologists to monitor blood pressure during surgery. The T-Line®, via its continuous, real- time data, is far more effective than the traditional cuff method and has clinically equivalent accuracy to that of the arterial line (A-line). The Tensys® device uses a transdermal pressure sensor to continuously, yet non- invasively measure blood pressure at the radial artery. Tensys Medical will be demonstrating the Tensys® T-Line® at booth #808 at the ASA meeting.

The American Society of Anesthesiologists Annual Meeting is in San Francisco and runs from October 11-15, 2003. For more information on the meeting, please visit www.asahq.org.

About Tensys® Medical

Tensys® Medical, Inc. is the leader in real-time blood pressure management. The Tensys® T-Line®, the company's lead product, was cleared by the FDA in November 2002 as a medical device providing anesthesiologists with a non- invasive, continuous real-time blood pressure management tool.

The Tensys® T-Line® measures a patient's blood pressure at the radial artery. It offers anesthesiologists better, more effective control over patient safety during surgery by allowing them to quickly monitor and manage blood pressure variations. The T-Line®, via its continuous, real-time data, is far more effective than the traditional cuff method and has clinically equivalent accuracy to that of the arterial line (A-line). The device is based on Tensymetry®, the company's proprietary and patented technology, for non-invasively extracting the continuous, beat-to-beat pressure waveform from the radial artery without the use of any external calibration device. The science of Tensymetry® is broadly protected and is the result of over six years of research and development. Prior to its official product launch in March 2003, the Tensys® T-Line® was tested in approximately 500 surgical cases nationwide.

Tensys® Medical is based in San Diego, California and was founded in November 1995. For more information, please visit the company's Web site at www.tensysmedical.com.

Company Contacts:

Bill Markle
Vice President, Marketing & Business Development
Tensys® Medical, Inc.
858.522.1941 x211
bmarkle@tensysmedical.com

Media Contacts:

James Forte or Maureen O'Donnell
Townsend Inc.
858.457.4888
jforte@townsendinc.com
modonnell@townsendinc.com