Comparison of pharyngocutaneous fistula after total laryngectomy with thyroid gland flap and traditional strap muscle
Objective:Compare the difference of Pharyngocutaneous fistula after total laryngectomy using thy-roid gland flap and traditional strip muscle repair,find an effective way to reduce Pharyngocutaneous fistula after total laryngectomy.Methods:Sixty patients with locally advanced laryngeal malignancies were randomly divided into two groups with 30 cases in each group.After total laryngectomy,the experimental group was repaired with thyroid gland flap,and the control group was repaired with traditional strap muscle.Data of gender,age,intraop-erative blood loss,operation time,neck lymph node dissection,combined diabetes mellitus,postoperative hy-poproteinemia,tumor stage,repair mode and postoperative Pharyngocutaneous fistula were collected in the two groups.The incidence of Pharyngocutaneous fistula in the two groups was compared,and the independent risk factors of Pharyngocutaneous fistula after total laryngectomy were found by logistic regression analysis.Results:The incidence of Pharyngocutaneous fistula after total laryngectomy was 3.3％(1/30)in patients with thyroid gland flap repair and 26.7％(8/30)in patients with traditional strip muscle repair,with statistically significant difference(P＜0.05).There was no significant correlation between gender,age,maximum tumor diameter,blood loss,operation time and Pharyngocutaneous fistula.Hypoproteinemia and repair mode were correlated with pharyngocutaneous fistula.Repair mode is an independent risk factor for Pharyngocutaneous fistula after total lar-yngectomy.Conclusion:The occurrence of Pharyngocutaneous fistula after total laryngectomy was decreased sig-nificantly by using pedicle thyroid flap compare to traditional surgery.The Pedicle thyroid flap can be considered as an effective clinical repairment to reduce postoperative Pharyngocutaneous fistula.
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