Dental surgery in patients with severe factor XI deficiency without plasma replacement.
Bleeding following dental extraction is frequently the first manifestation of severe factor XI deficiency. Safe oral surgery has previously been performed in such patients by using plasma replacement therapy with or without concomitant administration of antifibrinolytic agents. The aim of this study was to determine whether such patients can undergo safe dental extractions using only an antifibrinolytic agent. The study group consisted of 19 patients with severe factor XI deficiency (factor XI:C level less than 14 U/dl) who had previously bled following dental extractions (14 patients) or other trauma (five patients). Tranexamic acid, 1 g q.i.d., was given from 12 h before surgery, until 7 days afterwards. No excessive bleeding was observed following dental extractions. One patient had slight oozing after 3 days which ceased spontaneously. Thus, plasma replacement no longer appears necessary for patients with severe factor XI deficiency requiring dental extractions.
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