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Gac. méd. Méx ; 142(1): 9-12, ene.-feb. 2006. graf, tab
Article in Spanish | LILACS | ID: lil-571158

ABSTRACT

Antecedentes: La analgesia preventiva es obtenida por antagonistas de aspartato y glutamato, neurotransmisores liberados por lesión tisular. Objetivo: Valorar analgesia preventiva con dexmedetomidina y consumo de analgésicos en postanestesia. Material y Métodos: Previa aceptación del protocolo y obtención de carta de consentimiento informado, se incluyeron pacientes, de sexo masculino, de 20 a 65 años aleatorizados a tres grupos para uso de dexmedetomidina como analgesia preventiva en hernioplastia inguinal. Resultados: Se obtuvo promedio de edad, 45.3 ± 13.2 años. De los pacientes a los que se administró dexmedetomidina, previo a la anestesia, tres tuvieron: frecuencia cardiaca inferior a 60 lpm y requerimiento de analgésicos de 3.14 hs. De los pacientes que se administró dexmedetomidina transanestésica, dos registraron frecuencia cardiaca inferior a 60 lpm., y requerimiento de analgésicos de 2.27 minutos. En el grupo control un paciente tuvo frecuencia cardiaca de 43 lpm, con promedio de aplicación de analgésico fue de 39 minutos. No hubo variaciones significativas de la presión arterial en los tres grupos. Para el análisis estadístico se usó ANOVA, y T Student de muestras pareada dependientes para valorar analgesia y consumo de analgésico con p< 0.001 Conclusiones: La dexmedetomidina aplicada vía intravenosa previo a la anestesia, disminuyó la intensidad del dolor y consumo de analgésicos en el periodo postoperatorio.


BACKGROUND: Preemptive analgesia, is obtained via aspartate antagonists and glutamate, neurotransmitters released during tissular injury. Objective Asses preemptive analgesia with dexmedetomidine and consumption of a postanesthesia analgesic. MATERIAL AND METHODS: Male patients, 20-65 years ago were recruited after protocol review and informed consent was obtained. Patients were randomized in three groups, using dexmedetomidine as preemptive analgesia in inguinal hernioplasty. RESULTS: Subjects had a mean age of 45.3 +/- 13.2 yrs. Among patients where dexmedetomidine was administered prior to anesthesia, three had, low heart frequency (60 bpm) and required that analgesia be given for 3.14 hrs. Among patients in whom dexmedetomidine was administered during transanesthesia, two registered low heart frequency (60 bpm.) and required analgesia for 2.27 hrs. In the control group, one patient had a heart frequency of 43 bpm; mean analgesic administration time was 39 minutes. There were no significant variations in arterial pressure. Statistical analysis included Anova, and Student's T-test to assess analgesia and initial time of analgesia consumption at p < 0.001. CONCLUSION: Intravenous dexmedetomidine administered prior to anesthesia decreases pain intensity and consumption of postoperative analgesia.


Subject(s)
Humans , Male , Adult , Middle Aged , Analgesics, Non-Narcotic/therapeutic use , Dexmedetomidine/therapeutic use , Pain, Postoperative/prevention & control , Hernia, Inguinal/surgery
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