during his work , academician mishalkin himself. performed 33 operations that no one in the world hadin center that he received treatment. this is no longer only cardiac surgery, eight scientific centers for children and adults, oncology and oncosurgery, neurosurgery and, of course, supercardiac surgery with its own production of prostheses, valves great science at heart, everyone here is ready to help, siberia. they call and ask questions related to the life and death of their loved ones, questions related to serious illnesses, these are the questions you will ask us today, and the doctors of the research and medical center named after academician mishalkin will answer them. and we do this only so that you understand that it is not only in moscow that they rescue and work. according to the highest medical standards, but there are technologies that are not in moscow; they are in the center of mishalkin. let's start with questions. and you know, my child once lived and suddenly began to choke. the examination showed that he had a cardiac threshold. what could this mean, because this ha