Résumé
In acupuncture practice of animals, preanesthetics sometimes are needed. The purpose of this study was to select the ideal chemical restraint at acupuncture for gastric motility. Nine healthy mixed breed dogs weighed 10-21 kg and aged 1-3 years old were used in this study. Two EMG surface electrodes were placed between the seromuscular and the mucosal layer of pylorus. Twenty minutes after feeding normal gastric motility was recorded for 60 minutes using physiograph (Narco-Biosystem). Then preanesthetic treated-gastric motility was observed for 30 minutes. Preanesthetics used were xylazine, diazepam, and acepromazine. Acupuncture needles were inserted to BL-21 (Wei-Yu) acupoint, and then changes of gastric motility were recorded for 60 minutes. The gastric motility following xylazine administration (1 mg/kg, IV) was markedly decreased. BL-21 (Wei-Yu) acupoints stimulation did not alter xylazine-induced depression of gastric motility. The diazepam (1 mg/kg IV) treated-gastric motility was increased mildly 20 minutes after drug administration. BL-21 (Wei-Yu) acupoint stimulation after diazepam administration enhanced gastric motility significantly. The gastric motility following acepromazine (0.3 mg/kg, IM) administration was not changed compared with normal gastric motility. Application of traditional acupuncture at BL-21 (Wei-Yu) significantly increased the gastric motility. Based on these results, acepromazine and diazepam could be acceptable chemical restraints for acupuncture therapy of gastric motility, but xylazine couldn't be.
Sujets)
Animaux , Acépromazine , Acupuncture/normes , Points d'acupuncture , Adjuvants des anesthésiques , Agonistes alpha-adrénergiques , Neuroleptiques , Atropine , Diazépam , Chiens/physiologie , Antagonistes de la dopamine , Électromyographie/médecine vétérinaire , Motilité gastrointestinale/effets des médicaments et des substances chimiques , Hypnotiques et sédatifs , Métoclopramide , Parasympatholytiques , Prémédication anesthésique/normes , XylazineRésumé
El midazolam una nueva benzodiazepina de accion corta con propiedad ansiolitica, sedante, inductiva, miorrelajante, se compara con el tiopental sodico y halotano en induccion anestesica pediatrica. Se analizaron 45 pacientes repartidos en tres grupos ASA I-II de ambos sexos, entre 0 y 15 anos. El midazolam a dosis de 0.4 mgr. Kgr-1 no fue un buen inductor anestesico pediatrico. El tiempo de induccion es mas lento que con tiopental sodico pero con menor incidencia de efectos secundarios. No hubo diferencias hemodinamicas entre los grupos estudiados