Abstract:ObjectiveTo explore the application value and therapeutic effect of one-stage implantation of absorbable collagen membrane in the endoscopic laryngeal surgery of glottic carcinoma involving anterior commissure.MethodsA total of 19 patients with glottic carcinoma involving anterior commissure underwent endoscopic laryngeal tumor resection under general anesthesia. At the same time, the trimmed absorbable collagen membrane with an appropriate size was placed and fixed with cricothyroid membrane. One to two weeks after surgery, the external laryngeal fixation suture was removed according to the applied situation of collagen membrane. All patients were followed up for 6 months to 5 years. The contents of the follow-up included the state of vocal cord wound recovery, morphology of the anterior commissure, voice handicap index (VHI), maximum phonation time (MPT) and dysphonia severity index (DSI).Results① During the postoperative follow-up, except for residual tumor recurrence in one patient and adhesion of the anterior third of the vocal cords in 3, the remaining 15 patients did not have dyspnea and restored normal triangle-shaped anterior commissure anatomy. Compared with the previous 5 patients of the same stage without absorbable collagen membrane, satisfactory glottic shape was achieved in all cases. ②As for the postoperative pain, 17 cases (89.5%) were mild, 2 (10.5%) were moderate, and none of them were severe. ③The voice function assessments were performed when the mucosal function was stable at half one year after operation. The pre- and postoperative differences of VHI (60.63±12.93 vs 19.37±5.73), MPT (10.07±1.47 vs 14.40±1.48) and DSI (-1.52±4.20 vs 0.97±2.12) were all statistically significant (all P < 0.001).ConclusionThe first-stage implantation of absorbable collagen membrane can prevent vocal cord adhesion after resection of glottic laryngeal carcinoma involving anterior commissure, promote the recovery of postoperative laryngeal function with mild postoperative pain and without adverse reactions.