Kugelberg-Welander syndrome (English: Kugelberg-Welander syndrome) is a progressive multisystem disease characterized by severe pain in the lumbosacral region, weakness of the muscles of the lower extremities and paresis of the diaphragm, the development of which is associated with a violation of the neuromuscular regulation of the bioelectric activity of muscles during prolonged disruption of the blood supply. spinal cord. E. G. Kugelberg-Welaner was a professor of medicine at the University of Krakow in Poland.