星状神经节阻滞对家兔呼吸循环功能影响的初步观察

目的 :观察星状神经节阻滞对家兔呼吸循环功能的影响。方法 :选择健康成年家兔 5只 ,麻醉后暴露右侧星状神经节 ,用 1%利多卡因 1ml作局部浸润麻醉。观察阻滞前后呼吸频率、潮气量、动脉压、心率等的变化。结果 :与阻滞前相比 ,右侧星状神经节阻滞后呼吸频率及潮气量变化不显著 ;动脉压在阻滞后略有下降 ,但与阻滞前相比无显著差异 (P >0 .0 5 ) ;心率由阻滞前 141.8± 9.1次 /分下降到阻滞后 2min、5min、10min时的 12 9.8± 7.3次 /分、12 2 .4± 7.0次 /分、12 4.3± 7.4次 /分 ,且差异有显著性 (P <0 .0 5 )。结论 :右侧星状神经节阻滞对呼吸功能影响不明显 ,但对循环功能有一定的影响。

The Effect of Stellate Ganglion Block on Respiratory and Circulatory Function in Rabbits

Objective To Observe the effect of stellate ganglion block(SGB) on respiratory and circulatory function in rabbits.Methods Of 5 anesthetized healthy adult rabbits of either sex, the right stellate ganglion was exposed beside the trachea and blocked with 1% lidocaine (1ml). Before and after the ganglion blockade, recorded were the following changes: respiratory rate(RR),tidal volume(V T),systolic arterial pressure (SAP), diastolic arterial pressure (DAP), mean arterial pressure (MAP) and heart rate (HR).Results After the blockade , no significant changes occurred in V T and RR, SAP and DAP, with a slight decrease in MAP, but with no statistical differences in comparison( P >0.05);the HR change was significant: it decreased from 141.8± 9.1 bpm to 129.8±7.3bpm, 122.4±7.0bpm, 24.3±7.4bpm respectively after 2min, 5min, 10min of SGB( P <0.05).Conclusion This preliminary observation suggests that the right SGB may have some inhibitory effects on the circulatory function in rabbits.