[Anesthetic studies on trans-sphenoidal hypophysectomy: retrospective study].

This paper deals with the retrospective analysis of anaesthetic management of 31 cases of trans-sphenoidal hypophysectomy. Good management relies on the following points: (1) a precise diagnosis supported by thorough hormonal investigation, (2) adequate pre- and per-op. administration of steroids, (3) adequate monitoring, (4) a fail-safe airway. The authors recommend the combined use of Innovar and halothane under light hypocapnea for the maintenance of anaesthesia. The routine use of deliberate hypotension is not indicated. Diabetes insipidus usually results from this operation and consequently must be treated.