L. U. Kamenskaya
I. I. Mechnikov Northern-Western Medical University, Russian Ministry of Health, St. Petersburg; Leningrad Regional Clinical Hospital, St. Petersburg
Russian Federation

Post Graduate Student of Vanevsky Anesthesiology and Intensive Care Faculty, Doctor of Anesthesiology Department of Leningrad Regional Clinical Hospital

I. S. Kurapeev
I. I. Mechnikov Northern-Western Medical University, Russian Ministry of Health, St. Petersburg
Russian Federation

Doctor of Medical Sciences, Professor of Vanevsky Anesthesiology and Intensive Care Faculty

V. I. Buravtsov
I. I. Mechnikov Northern-Western Medical University, Russian Ministry of Health, St. Petersburg
Russian Federation

Doctor of Medical Sciences, Professor of Vanevsky Anesthesiology and Intensive Care Faculty