Jean Athanase Sicard

Jean Athananase Sicard was born and educated in Marseille and began his medical study in his native city, but completed it in Paris, where he undertook serodiagnostic research studies in immunology with Georges-Fernand-Isidore Widal (1862-1929). As a student he worked closely with men like Henri-Alexandre Danlos (1844-1912), Charles Emile Troisier (1844-1919), Édouard Brissaud (1852-1909) and Fulgence Raymond (1844-1910), of whom he was most influenced and helped by Brissaud, who guided him toward neurology. He became an externe in 1894, interne 1895, M.D. in 1899.

Sicard became chef de clinique in 1901, médecin des hôpitaux in 1903 and agrégé in 1907. In 1910 he was made chef de service at the Hôpital Necker, and in 1923 was appointed professor of internal pathology at the Paris faculty. During World War I he directed the neurological centre of the 15th region. He was dubbed "The healer of pain" following his work on the mechanisms of pain and therapeutic strategies he evolved there from.

Already while a student Sicard had become familiar with serodiagnostic methods of investigations. He was very interested in diagnostic and therapeutic techniques involving direct injections. He introduced the injection of sclerosing solutions for varicose veins and alcohol injections for the relief of trigeminal neuralgia.

With his student Jacques Forestier (1890-1978) Sicard introduced the use of radio-opaque iodised oil (lipide). The use of this injection intro the cerebrospinal fluid was a brilliant advance in diagnostic and localisation techniques for intraspinal neoplasms. He recognised its possibilities in the use of other situations such as sinus tracts and urethral disorders, bronchography and even the demonstration of intra-arterial thromboses. He was also one of the first to become interested in the possibilities of pneumo-encephalography.

After a dinner that he hosted and in which he had been unusually effervescent he developed angina pectoris and suggested the injection of the sympathetic ganglion with Novocain. He died before this could be undertaken.

• Le liquide céphalo-rachidien. Paris, 1902.
• La névralgie faciale essentielle et son traitement par les injections locales neurologiques.
  Paris, 1911.
• Méthode radiographique d’exploration de la cavité épidurale par la lipiodol.
  Written with Jacques Forestier (1890-1978).
  Revue neurologique, Paris, 1921, 28: 1264-1266.
  Lipide (iodised oil) first used in radiology. Positive contrast myelography with iodised oil (lipiodol).
• Fou rire syncopal et bâillements au cours de l'encéphalite épidémique.
  Jean Athanase Sicard and Jean Paraf (1888-1960).
  Bulletins et mémoires de la Société médicale des hôpitaux de Paris, 1921, 45: 232.
• Traitement des varices par les injections phlébo-sclérosantes du salicylate de soude.
  Written with Jean Paraf and J. Lermoyez.
  Gazette des hôpitaux, Paris, 1922, 95: 1573-1575.
  Introduction of sodium salicylate injections for the treatment of varicose veins.
• L’exploration radiologique des cavités broncho-pulmonaires par les injections intra-trachéales d’huile iodée.
  With Jacques Forestier. J méd Franç, 1924, 13: 3-9.
• Le traitement des varices par la méthode sclérosante.
  With Louis Gaugier. Paris, 1927; 3rd edition, 1931.
• Diagnostic et thérapeutique par le lipiodol.
  With Jacques Forrestier. Paris, 1928.
• Liquide céphalorachidien. Nouveau traité de médecine, Paris, volume 18, 1928.