Description

45 patients undergoing total laryngectomy operation will be enrolled in this study. The patients will be divided into 3 equal groups, 15 patients in each group. Group (A), tranexamic acid will be given 1 hr preoperatively. Group (B), topical tranexamic acid will be given as an irrigation to the surgical site. Group (C), control group.One hour preoperatively, a wide bore cannula will be inserted to all patients. Tranexamic acid 1mg/kg will be given intravenously to patients in group (A). Normal saline will be given to Group (B) and group (C) .On arrival to the operating room, a pulse oximetry, continuous electrocardiogram (ECG), and non-invasive blood pressure measurement device will be connected to the patient. Pre-medications will be given; metoclopramide (10mg) and dexamethasone (8mg) preoperatively. Induction will be done by sevoflurane, propofol 1mg/ kg, succinyl choline 0.5mg/kg. After intubation, fentanyl 2mic/kg and atracurium 0.5mg/kg will be given , followed by 0.8 mg/kg Morphine sulphate . Anesthesia will be maintained by isoflurane 1.5% and atracurium 0.1mg/kg/ 30min. After flap elevation ( using local infiltraton of epinephrine 1/100000), the surgical site will be irrigated by 40 ml of tranexamic acid 2mg/kg dissolved in 200ml normal saline every 1 hour for the first 5 hours in group (B), and by normal saline in group (A) and group (C).