QUAD #20: Endoscopic Repair of Minor Laryngeal Clefts with Dr. Catherine Hart

A type 1 laryngeal cleft can appear normal on flexible bronchoscopy but be visible on rigid bronchoscopy using less sophisticated identification techniques.

Combined flexible and rigid bronchoscopy evaluations are complementary and necessary to avoid missing laryngeal clefts.

Surgical indications for laryngeal cleft repair include ongoing respiratory symptoms, aspiration, failure to thrive, recurrent pulmonary infections, and failure of conservative measures (or in some instances before trying conservative measures).

Mass closure or layered closure technique can be used for laryngeal cleft repair, but the key requirement is that edges must be inverted when finished.

Cold steel is preferred over laser for minor cleft resection because it is simpler to set up, faster, and eliminates the risk of laser fire.

Closure is performed using interrupted sutures, typically PDS on an RB1 or P3 needle depending on child size.

Postoperatively, children are observed overnight on the airway unit and resume their preoperative diet, which is continued until postoperative evaluation.

Postoperative evaluation is typically performed 6 to 8 weeks after surgery and includes repeat video swallow study and repeat endoscopy to ensure healing.

Failure of endoscopic cleft repair is not super common.

Incomplete demucosalization at the apex can result in healing at the top but a gap remaining at the back.

Layered closure technique (closing anterior and posterior portions separately) seems like more effort in minor clefts but is a more reasonable option for type 2 or 3 clefts to ensure good closure.

Conservative management (not surgery) achieves resolution over time in 51% of children with laryngeal clefts.

Injection laryngoplasty achieves improvement in symptoms in two-thirds of children and resolution in one-third.

Complications of surgical cleft repair are often not terrible but include reports of laryngeal scarring, supraglottic infections, and lacerations.