• J Vilalta, E Rubio, C H Castaño, J M Guitart, and J Bosch.
• Servicio de Neurocirugía, Hospital Vall d'Hebrón, Barcelona.
• Rev Clin Esp. 1992 Feb 1; 190 (2): 57-9.

AbstractThe level of consciousness prior to surgery has been analyzed in a series of 64 patients suffering epidural hematoma (EDH) who underwent surgery during the period from July 1987 to June 1989. The percentage of cases which underwent surgery in coma after a lucid interval have been compared in different periods of time (1978-80, 1981-82, 1983-84 and July 1987 to June 1989). During the period from July 1987 to June 1989 surgery was performed on: 15 patients (23.5%) in coma from the moment of accident, 8 patients (12.5%) underwent surgery in coma but after a lucid interval and 41 patients (64.1%) were conscious. During the different periods of time the number of patients undergoing surgery in coma after a lucid interval were the following: 1979-80, 9 cases (26.5%); 1981-82, 17 cases (43.6%); 1983-84, 8 cases (20%) and during the last period, 1987-89, 7 cases (15.2%). The difference between the percentage of patients intervened in coma after a lucid interval in the previously referred periods of time was statistically significant (p 0.05).

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