Summary Although rare, guttural pouch mycosis is a potentially life‐threatening disease in the horse. The disease is most commonly treated surgically. One surgical option is occlusion of the internal carotid artery with a combination of ligation and use of a balloon tipped venous thrombectomy catheter. Complications of such treatment are rarely reported. This case series of five individuals describes the appearance, diagnosis and management of medium (>2 weeks) and long‐term (>10 years) complications (including abscess formation, draining sinuses and wound dehiscence) of internal carotid artery occlusion with a venous thrombectomy catheter and management of these surgical site infections. The clinical presentations included swelling and/or discharging tracts in the parotid region. In one horse, an osseous reaction of the basisphenoid bone and penetration of the contralateral guttural pouch by the implant were identified by computed tomography. In all five horses, the surgical site infections were successfully resolved following removal of the venous thrombectomy catheter.

459tory. One way which is being used with very good results in several shops is simply t o weigh a given volume of the enamel. By keeping the weight the same they keep the enamel of about the right consistency. Probably the surest way of knowing whether the enamel :is of the right thickness is to fire a couple of samples dipped at various times during the day: The use of setting up chemicals in the dipping tank should not be necessary as the enamel should be set u p in the mill all right. By adding them in the dip tank it tends to increase the danger of varied results.In the firing of ground coat the time and temperature should be watched. Poor ware will often result if the fire is raised and the ware is fired too fast. Sometimes troubles may be corrected by hanging the ware or by placing it on special tools.A good inspection of the ground coat will save much trouble later on. All underfired pieces should be refired and the overfired pieces redipped.In summarizing this paper, we suggest that you analyze your own management of your shop to see if you do the following things in controlling your ground coat: Do you run your shop as it ought to be run? Do you keep the mill room clean? Do you look at the linings of your mills? Do you keep your mills half full of pebbles? Do you accurately measure the water that is put in your mills? Do you run a screen test of each mill of enamel? Do you test the pickling acid daily? Do you sieve the enamel in the dip tank daily? Do you watch the dippers? Do you watch the temperature of the furnaces? Or in other words, Is your shop under control?The proper application of the ground coat in enamel work is the most important part of all of the enameling processes, because i t is the foundation upon which rests the success and efficiency of the rest of the enameling operation.T o emphasize the above statement, let me call your attention to the old saying that "a structure is no stronger than the foundation upon which i t is built"-and so the foundation for enameling is even more

Analgesic effect of intravenous ketamine in cancer patients on morphine therapy: a randomised, controlled, double-blind, crossover, double-dose study.

No abstract

A case of cardiovascular collapse during halothane anaesthesia raised the question of the halothane concentration delivered by vaporizers after refilling. The rise in halothane concentration following replenishment has been measured in three commonly used vaporizers; the calibrated Boyle bottle was found capable of delivering a dangerous concentration in certain circumstances.