[An error too widely spread among the public, even among medical personnel: the risk of hypercoagulation caused by sclerosing solutions].

In Raynaud's syndrome surgery may have a place at the costo-clavicular level, in the thoracic sympathetic chain, in the carpal tunnel, and in necrotic lesions of the fingers. In the majority of cases sympathetic denervation of the forearm is required. Some typical cases are briefly presented. In 16 operations the author achieved a favourable result in 13 cases, with failures.