Oxidized Cellulose Hemostatic Agent in Thyroid Surgery: a Prospective Randomized Controlled Study

• The primary endpoint of the study was the postoperative volume of wound drainage [ Time Frame: 1 WEEK ] [ Designated as safety issue: No ]
  

• The secondary endpoints were events of bleeding requiring wound exploration under anesthesia [ Time Frame: 48 HOURS ] [ Designated as safety issue: No ]
  
• duration of drain use [ Time Frame: 1 WEEK ] [ Designated as safety issue: No ]
  

• hospitalization time [ Time Frame: 1 WEEK ] [ Designated as safety issue: No ]
  

patients who require a thyroidectomy will be enrolled after informed consent will begiven. Prior to thyroidectomy, patients will be randomized to two groups: 1) use of conventional surgical procedures to achieve hemostasis,i.e., ligatures and bipolar electrocauterization alone, and 2) use of oxidized cellulose patch (Surgicel©) in addition to classical methods (ligature; bipolar electrocautery). All anticoagulants will be discontinued 10 days prior to the operation, if this will not be possible the patient will be excluded. The investigators will perform the specified procedure in accordance with accepted clinical practice standards. At the end of the thyroidectomy, a meticulous hemostasis will be achieved. Before wound closure, the sealed affiliation envelopes will be opened and 1-2×2 cm oxidized cellulose patch will be placed over the thyroid bed depending on patient randomization. Next, a suction drain will be placed. The drains will be removed when the secretion volume/day will be less than 20 cc.

All operations will be performed under general anesthesia by three head and neck surgeons who had experience in thyroid surgery. Outcome measures will include duration of operation, hemodynamic variables on emergence (blood pressure and heart rate), volume of secretion in the drain, time to removal of wound drain, length of postoperative hospital stay, and incidence of postoperative complications, i.e. hemorrhage, transient hypoparathyroidism, wound infection, seroma, and recurrent laryngeal nerve palsy. Evaluation of the postoperative course and recording of data will be done by one surgeons blinded to the intervention (MA). Follow-up for this study will be ended one month after the surgery.