Revista Brasileira de Anestesiologia
Print version ISSN 0034-7094
GARCIA, João Batista Santos; ISSY, Adriana Machado and SAKATA, Rioko Kimiko. Preemptive analgesia. Rev. Bras. Anestesiol. [online]. 2001, vol.51, n.5, pp. 448-463. ISSN 0034-7094. http://dx.doi.org/10.1590/S0034-70942001000500011.
BACKGROUND AND OBJECTIVES: Postoperative pain control started to be more investigated in the last decade, when it has been observed that postoperative analgesia was inadequate. The word preemptive implies a type of analgesia which, induced before pain stimulation, prevents or minimizes subsequent pain. This study is an update on preemptive analgesia and provides new alternatives for postoperative pain relief. CONTENTS: Preemptive analgesia is recommended to prevent pain caused by central nervous system changes during surgery in consequence of the non-suppression of painful stimuli conduction to the brain. Many experimental studies in animals and humans have been performed to show a preemptive effect, but results are still unclear. CONCLUSIONS: Although some clinical evidences of the effects of preemptive analgesia, more studies are needed to determine the real value of this type of analgesia in controlling postoperative pain.
Keywords : ANALGESIA, Preemptive.