TriGuard Cerebral Protection Device
Normal brain activity is the main key to human livelihoods, so its preservation is main task of medical staff during necessary medical procedures. The newest and by far the world’s only device which is able to provide protection of vessels in a brain during surgical intervention in cardiac vascular system was developed by the Israeli Company – Keystone, they named it Trigard.
The first tests of a new device were carried out by experts – researchers from Yale University (USA). 83 patients participated in the test. Test showed record increase (55% of total number of participants) of patients without ischemic brain damages which increase a risk of stroke and dementia on many times.
This unique device is being tested clinically in health centers and hospitals in Israel, as well as in European clinics. Ongoing research is needed to develop common standards of Trigard preset during operations on valves of a heart and its vessels.
During stenting operation the device is mounted at desired location of an aorta by a catheter with a diameter of 3 mm. Stenting is performed by accessing the femoral artery through only one port of the two. Thus a need for additional, third puncture is eliminated.
Studying the results, it was found that a scale of brain lesions when applying Trigard decreased on 90% compared with a modern conventional – unprotected procedure.
Even taking into account statistics of complications after surgery (about 2 to 5% of the total number of the operated), installation of this unique device reduces risks of stenting to a zero level!
However, the most impressive results of Trigarda have been achieved in the course of improving cognitive functions of patients participating in the research: they have observed improved memory, orientation, attention.
The device provides long-term protection of a brain, and practically reduces to a minimum a threat of cerebral damage in the postoperative period.
The degree of possible risk
The procedure for aortic valve replacement with its artificial analogue is extremely complicated cardiac surgery. During a replacement operation, when an exhaust valve is replaced be its new analogue, various foreign bacteria enter into vessels of an ascending aorta or an aortic valve which may cause infarction symptoms or cerebral embolism.
However, information on unfavorable state of a brain after surgery may not be immediately apparent. The risk of symptomatic brain injury (stroke, multiple cognitive disturbances) can be maintained for a long time in the postoperative period.
Use of Trigard today
Annually Israeli hospitals perform hundreds of operations for aortic valve replacement in closed session. The new development guarantees brain protection from possible penetration of clots, as established prior to stenting procedure or surgery for valve replacement.