Dr Lysak works as a hand and peripheral nerve surgeon in the department of “Microsurgery and reconstructive surgery of upper extremity”. In 2020 successfully passed the European Board of Hand Surgery Exam. Author of more than 50 scientific papers published in leading Ukrainian and foreign professional journals, co-author of guidelines “Compartment syndrome at gunshot wounds of the limbs”, multidisciplinary consensus on “Traumatic brachial plexus injuries. Main principles of diagnostics and treatment”. Since 2017, secretary of the Ukrainian Hand Surgery Society.