EFFECT OF HALOTHANE ANAESTHESIA ON SURVIVAL OF DOGS SUBJECTED TO CONTROLLED POSTHAEMORRHAGIC HYPOTENSION FOLLOWED BY RETRANSFUSION

The results of our previous investigations (Vajs, Reberniacand Pantelic, 1965) suggest that halothane anaesthesia may adverselyaffect the survival of severely bled dogs. In order to examinefurther this effect of halothane fifteen dogs were subjectedto controlled posthaemorrhagic hypotension at a level of 40mm Hg for 2 hours and then retransfused. Halothane anaesthesiastarted at the 15th minute after initial haemorrhage and wasdiscontinued at the 15th minute after the end of retransfusion.Only four dogs died. In the control group of experiments withoutanaesthesia, six out of fifteen dogs died. It is concluded thathalothane anaesthesia probably does not influence the survivalof dogs subjected to controlled posthaemorrhagic hypotensionfollowed by retransfusion.