With all the precautions in place to minimize the likelihood of fluid overload and ambient air embolism occurring, we surmised that products of combustion were the cause of the gas embolism. During endometrial ablation, gaseous products of combustion, mainly carbon dioxide, accumulate. The gases may then contribute to the rise in uterine pressure that occurs as irrigation fluid enters the uterus and this rise in pressure in turn encourages passage of gas into the open venous sinuses.

A case report is presented demonstrating the beneficial beta2 stimulating effect of halothane in a patient with status asthmaticus unresponsive to adequate conventional therapy. Twenty-four hours after the commencement of therapy, 0.5 per cent of 1.0 per cent halothane was administered for one hour with sustained reductions in peak inspiratory airway pressure and increases in dynamic and static effective compliances.