The Russian town of Penza has become a high-tech hub within its rich heritage. It is also home to a unique heart valve factory, saving people's lives around the world every day. The factory's products have become so successful that they are now being exported to more than 20 countries around the world. RT's Igor Ogorodnev has been allowed to witness a life-saving operation in which doctors sewed in an artificial valve that will allow the patient's heart to function again. The surgeons in the video are putting in a Russian-made artificial valve, and sewing it in.
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