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How To: Novel Technique for Endoscopic Placement of Stent in Management of Anterior Glottic Webs

by Necati Enver, MD, Apoorva Ramaswamy, MD, and Michael J. Pitman, MD • March 16, 2021

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Fig. 1. Passing an intravenous catheter through a 1-cm skin incision over the cricothyroid membrane into the subglottis and retrieving the inferior suture end using the renal stone extractor

Fig. 1. Passing an intravenous catheter through a 1-cm skin incision over the cricothyroid membrane into the subglottis and retrieving the inferior suture end using the renal stone extractor

A second venous catheter is bent slightly and then passed through the thyrohyoid membrane, entering the airway at the petiole of the epiglottis in a technique similar to that used during in-office vocal fold injections. No skin incision is required at this site. Again, the needle is withdrawn, leaving the polymer sheath in place. The same stone extractor is then introduced into the endolarynx through this superior catheter and pulled-out laryngoscope. The superior end of the suture is secured by the stone extractor basket and pulled out of the anterior neck skin through the thyrohyoid membrane catheter site. The catheters are removed, and then the keel is grasped with alligator forceps and guided into the site of the incised web as both external suture ends are pulled away from the neck until tight. The superior end of the suture is then attached to a free needle. This needle carries the suture subcutaneously as it is passed from the superior puncture site to the inferior incision site. The suture is then tied down on the tissue beneath the skin incision site while ensuring proper placement of the keel in the airway. The 1-cm skin incision is then closed.

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March 2021

In the immediate postoperative period, patients are given no specific restriction or care needs beyond keeping the skin incision dry for three days. Voicing is allowed without any restriction beyond decreasing voice use with evidence of strain or fatigue.

Three weeks after the surgery, the keel can be removed. Instead of removing the keel in the operating room under general anesthesia, this can be done in the office with topical anesthesia. The airway is anesthetized with an injection of 2 cc of 4% lidocaine into the airway via the cricothyroid membrane. The previous skin incision at the level of cricothyroid membrane is opened, and the keel suture is identified. Using a channeled laryngoscope or esophagoscope, the keel is grasped with cupped forceps. The suture is released and removed. Simultaneously, the keel is removed as the scope is pulled back out of the nostril with the keel held by the cupped forceps. The skin incision is neatly sutured closed.

Instead of removing the keel in the operating room under general anesthesia, this can be done in the office with topical anesthesia. 

Results

Six patients on whom the renal basket technique was utilized between 2014 to 2019 were included. All patients had preoperative complaints of dysphonia, especially decreased projection and vocal strain. There were no complaints of dyspnea. All patients had better voice function with increased projection, decreased vocal strain, and fatigue after stent removal. Although the voices became less raspy, none returned to normal. One patient had a mild amount of granulation at the anterior aspect of the stent, which resulted in mild to moderate dysphonia while the stent was in place. This resolved soon after stent removal. No patients have reported significant complications or recurrence.

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Filed Under: How I Do It, Laryngology Tagged With: clinical careIssue: March 2021

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