Sergei Korsakov

Korsakov in 1885

Sergei Sergeievich Korsakoff (Template:Lang-ru; January 22, 1854, Gus-Khrustalny – May 1, 1900, Moscow) was a Russian neuropsychiatrist.

Sergei Korsakoff was the first great Russian neuropsychiatrist. He studied medicine at the University of Moscow, graduated in 1875 and subsequently became a physician at the "Preobrazhenski" (Template:Lang-ru) mental hospital. From 1876 to 1879 he gained postgraduate experience in the clinic for nervous diseases under Aleksei Kozhevnikov. His thesis "Alcoholic Paralysis" gained him a medical doctorate in 1887. In 1892 he was appointed professor extraordinarius at a new university psychiatric clinic. During this time he visited Vienna where he was a pupil of Theodor Meynert. He was ordinarius of neurology and psychiatry from 1899 until his death the next year. He died from heart failure at the age of 46.

Korsakoff was one of the greatest neuropsychiatrists of the 19th century and published numerous works in neuropathology, psychiatry, and forensic medicine. Apart from his studies on alcoholic psychosis, he introduced the concept of paranoia and wrote an excellent textbook on psychiatry. Korsakoff studied the effects of alcoholism on the nervous system and drew attention to several cases of alcoholic polyneuropathy with distinctive mental symptoms. An able organiser, he was instrumental in founding the Moscow Society of Neuropathologists and Psychiatrists. The "Zhurnal nevropatologii i psikhiatrii imeni Korsakova" (Template:Lang-ru, Korsakoff's Journal of Neuropathology and Psychiatry) was named after him.

Associated eponyms

• Korsakoff's psychosis and syndrome: Amnestic-confabulatory syndrome with three salient features (1) severe memory defect, especially for recent events; (2) confabulation, i.e. falsification of memory in an alert, responsive individual; and (3) polyneuropathy (psychosis polyneuritica), usually associated with alcoholism and malnutrition.
• Wernicke-Korsakov syndrome or Polioencephalitis hemorrhagica superior associated with Korsakov's psychosis: A condition characterized by nystagmus, ocular and conjugate gaze palsies, ataxia and psychosis due to nutritional deficiency, more specifically of thiamine and observed mainly, though not exclusively, in alcoholics.

Further reading

• Firkin, Barry G.; Whitworth, J. A. (2002). Dictionary of Medical Eponyms (2nd ed.). Boca Raton: Parthenon. ISBN 1-85070-333-7.