Objective:To observe the influence of different concentration of chloral hydrate in electrocardiogram (ECG) on rabbit, establish a new model of rabbit ventricular arrhythmia suitable for undergraduate teaching. Methods: Rabbit electrocardiogram (ECG) trace method, healthy rabbit can be divided into 6 groups, Chloral hydrate low dose group(5%,0.4 ml/kg), Chloral hydrate middle dose group(10%,0.4 ml/kg), Chloral hydrate high dose group(15%,0.4 ml/kg), high dose of chloral hydrate and lidocaine(1%,1ml/kg), barium-chloride(0.5%,2ml/kg), barium- chloride and lidocaine group. The incidence of arrhythmia and duration of each group was compared.Results: High dose group of arrhythmia duration more than 30 minutes, Compared with barium chloride group mortality was lower (p < 0.001); To compared with barium chloride group,lidocaine can obviously shorten the duration of the chloral hydrate ventricular arrhythmia (p < 0.05), electrocardiogram (ECG) return to normal (p < 0.05). Conclusion: 15% chloral hydrate 0.4 ml/kg can cause stability on rabbit ventricular arrhythmia, Lidocaine against arrhythmia caused by chloral hydrate ventricular arrhythmia on rabbit. Compared with barium chloride model it is simple operation,low toxicity, Stability of electrocardiogram. The model is more suitable for undergraduate teaching.
rabbitchloral hydratebarium chloridearrhythmia model
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万方数据
