On September 18–19, 2025, the Department of Neurology named after Academician S.N. Davidenkov of the I.I. Mechnikov North-Western State Medical University held the All-Russian Congress with international participation The XXVII Davidenkov Readings is one of the most important events for the neurological community of St. Petersburg and the North-West region of the Russian Federation. The congress was held with the support of the All-Russian Society of Neurologists, the Association of Neurologists of St. Petersburg and the Leningrad Region, and the neurological departments of St. Petersburg universities.