Pre-excitation and mitral valve prolapse.

Abstract

on their own.The treated group were given oxyphenbutazone 250 mg twice daily in a suppository and had their legs bandaged with Lohmann's Dauerbinde (strong, or krdftig) for 14 days after the operation.Both legs were bandaged from toe to knee immediately after operation.The bandages were 10-or 12-cm wide, depending on the size of the patient's feet and legs.They were changed twice daily, or more often if necessary, and were worn at night.The bandaging significantly increased the velocity of the venous blood.2Blood coagulation, blood in faeces, white cell count, packed cell volume, and electrolytes were recorded for 18 days postoperatively to detect any adverse reaction to treatment, especially to oxyphenbutazone.Ascending phlebography4 was performed 14 days or more postoperatively, or earlier when indicated clinically.The average was 19 days.Altogether 18 patients developed deep vein thrombosis.Of these, 5 were in the treated group (5127) and 13 were controls (13/23).The difference was significant (P<001) according to Fischer's exact statistical test.No thrombosis in the treated group advanced beyond the popliteal fossa.No pulmonary emboli appeared in either group.One patient developed a rash, which disappeared after the withdrawal of oxyphenbutazone.No other side effects were noted.No change in the coagulation time was found.