• Longás Valién J J Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital Universitario Miguel Servet, Zaragoza. jalonva@terra.es, L M Guerrero Pardos, A Gonzalo González, M Infantes Morales, A Rodríguez Zazo, and J M Abengochea Beisty.
• Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital Universitario Miguel Servet, Zaragoza. jalonva@terra.es
• Rev Esp Anestesiol Reanim. 2004 Dec 1; 51 (10): 568-75.

Objective[corrected] To study the analgesia, hemodynamic stability and inflammatory response in patients undergoing carotid endarterectomy under different types of general anesthesia.Materials And MethodsA comparison of 80 patients randomized to 4 groups: group 1, maintenance with sevoflurane at a minimum alveolar concentration (MAC) of 1; group 2, sevoflurane at MAC 1.5; group 3, remifentanil; group 4, propofol. Variables studied were hemodynamic alterations during and after surgery, level of postoperative analgesia, differential white cell counts, levels of interleukin-6 (IL-6), and clinical signs and symptoms of systemic inflammatory response syndrome in the first 24 hours after surgery.ResultsThe incidences of episodes of intraoperative hypertension were 60% in group 1, 65% in group 2, 50% in group 3, and 60% in group 4. The incidences of episodes of intraoperative hypotension were 85% in group 1, 80% in group 2, 80% in group 3, and 75% in group 4. Patients in groups 3 and 4 had higher incidences of systemic inflammatory response syndrome (p<0.05) in the first 24 hours after surgery and higher levels of IL-6 (p<0.05). Postoperative analgesia was similar in all 4 groups.ConclusionsIncreased levels of IL-6 in peripheral blood and of systemic inflammatory response syndrome were found in the early postoperative period in groups that did not receive halogenated gases. Hemodynamic stability and analgesia were similar in all groups, however.

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