Comparison of Tranexamic acid, Remifentanil, and Hydralazine on the bleeding volume during Dacryocystorhinostomy surgery.

Background: Bleeding in Dacryocystorhinostomy (DRC) limits the surgeon's sight and access. Tranexamic acid, Remifentanil, and Hydralazine reduce intraoperative blood loss. However, no study has been carried out to compare the efficacy of the latter drugs during DCR surgery.