Laryngotracheal Reconstruction Care

Risk Factors

Risk factors for laryngotracheal stenosis:

• History of prolonged endotracheal intubation
• Prior tracheostomy
• Laryngeal trauma or caustic ingestion
• Systemic autoimmune disease
• Prior radiation to the neck

Who is at Risk

Adults who have undergone prolonged intubation, those with idiopathic subglottic stenosis (particularly women aged 30 to 50), and patients with post-traumatic or post-radiation laryngeal scarring are primary candidates for laryngotracheal reconstruction.

Diagnosis

Workup includes:

• Flexible laryngoscopy and rigid bronchoscopy for stenosis grading
• CT scan of the neck and chest for anatomy assessment
• Myer-Cotton grading of subglottic stenosis
• Pulmonary function tests with flow-volume loop
• Multidisciplinary respiratory function assessment

Treatment Options

Treatment includes endoscopic laser or balloon dilation for mild stenosis, open LTR with cartilage grafting for grade II-III stenosis, and cricotracheal resection for severe grade III-IV disease. Single-stage procedures are preferred to minimize tracheostomy duration.

The Procedure

Laryngotracheal reconstruction involves:

• General anesthesia with tracheostomy or jet ventilation
• Anterior cervical incision to expose the larynx and trachea
• Anterior and posterior midline incisions through the cricoid
• Costal cartilage graft harvest from the fifth or sixth rib
• Graft placement to expand the anterior and posterior subglottis
• Stenting with sialastic stent or Montgomery T-tube
• Closure and post-operative airway management

After the Surgery

Post-operative recovery includes:

• ICU care for 24 to 48 hours post-operatively
• Stent maintenance and airway humidification
• Speech and swallowing assessment
• Serial endoscopy at 6 weeks for stent removal assessment
• Tracheostomy capping trials for decannulation
• Follow-up at 3, 6, and 12 months post-operatively

Possible Complications of LTR Surgery

Potential complications include:

• Restenosis requiring repeat surgery or dilation
• Graft resorption or displacement
• Subglottic granulation tissue formation
• Voice changes from posterior commissure involvement
• Anastomotic leak or wound dehiscence
• Prolonged tracheostomy dependence in complex cases