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Dolor ; 19(53): 30-32, jul. 2010. ilus
Article in Spanish | LILACS | ID: lil-682507

ABSTRACT

Esta segunda parte trata el tema de la hiperalgesia, siguiendo el modelo de la hiperalgesia postoperatoria. Se sabe que a pesar del conocimiento de la neurofisiología del dolor, sigue teniendo una alta incidencia de dolor postoperatorio, dolor crónico postoperatorio y dolor crónico postraumático. En todas estas situaciones, la nocicepción del dolor está aumentada, dada principalmente por la presencia de hiperalgesia. Se sabe que su diagnóstico es difícil, pero es necesario sospecharla para tratarla precozmente y evitar las repercusiones negativas en el individuo. En la hiperalgesia existe activación de los receptores NMDA,se postula que al ser bloqueado por la ketamina, principal antagonista de estos receptores, se tendría menor hiperalgesia y, por ende, menor dolor.


This second part addresses hyperalgesia following the postoperative hyperalgesia model. It is well known that in spite of the wide knowledge regarding pain neurophysiology, it still has a great impact on postoperative pain, postoperative chronic pain and post traumatic chronic pain. In all those situations, pain nociception is increased mainly due to the presence of hyperalgesia. Diagnosing it is difficult, however, one should suspect it so to start treatment at an early stage and avoid negative consequences for patients. Hyperalgesia is present in NMDA receivers which, as some think, if blocked by Ketamine, the main antagonist of these receivers, hyperalgesia will be lessened, hence pain reduced.


Subject(s)
Humans , Analgesics/therapeutic use , Pain/drug therapy , Hyperalgesia/drug therapy , Ketamine/therapeutic use , Analgesics/pharmacology , Pain, Postoperative/drug therapy , Hyperalgesia/etiology , Ketamine/pharmacology , Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors , Receptors, N-Methyl-D-Aspartate
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