The Operational Planning and Management System (HOPS) of the Republican Vilnius University Hospital collects data on the operations performed on patients. The set includes data that has been accumulated since August 2023 and is still up-to-date. The overall dataset consists of five tables: “Operations,” “Medics,” “Anesthesia,” “Firearms,” and “Patients.” The set specifies all times in the Central Europe (CET) time zone. Data providers shall mean the Public Enterprise Republican Vilnius University Hospital and the State Health Care Accreditation Service under the Ministry of Health Care (VASPVT).