The system developed by the Moscow scientists with the financial assistance of the Russian Foundation for Basic Research and the Foundation for Assistance to Small Innovative Enterprises will instantly allow to detect and measure gas micro-bubbles being formed in blood inside the pump oxygenator. A small device which looks like some kind of a bracelet on the arterial line of the pump oxygenator and is connected to the computer will be recording all bubbles, searching for potentially dangerous ones and will ensure the timely opportunity to get rid of them.
A patient on the operating table is exposed to numerous risks, especially if the operation is so complex, that extracorporeal circulation is required. One of the dangers is a risk of embolism by a gas bubble, which may occur in the process of blood circulation in the pump oxygenator. It is not always clear why the gas bubbles originate, but they do almost in all the cases. The smaller ones, less than 10 microns in diameter are not particularly dangerous, as they quite rapidly dissolve by themselves. As for bigger bubbles, they may plug in a vessel like a cork, thus disrupting normal blood circulation and causing very bad problems for the organism.
In order to avoid such consequences, it is necessary to trace all the bubbles formed in a pump oxygenator, detect the biggest ones as the most dangerous and get rid of them. The matter is that it has only been possible so far to apply a qualitative approach to this problem, but the scientists have not had any clue to solving it at the quantitative level - to detect gas bubbles in blood and to determine their number and size. In other words, the scientists were unable to distribute the bubbles by size.
Sergey Komarov | alfa
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