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General Anesthetic Exposure in the Management of Pediatric Subglottic Stenosis
Kevin Koss1, Marvin S Lu2, Logan Massman3
1Department of Otolaryngology and Communication Sciences Medical College of Wisconsin Milwaukee Wisconsin USA.
Insights
Children with subglottic stenosis (SGS) undergoing laryngotracheal reconstruction (LTR) had more anesthesia and procedures than those treated with endoscopic balloon dilation (EBD). This highlights the importance of discussing anesthesia risks with parents.
Area of Science:
- Pediatric Otolaryngology
- Pediatric Anesthesiology
- Airway Reconstruction
Background:
- Subglottic stenosis (SGS) is a rare but serious condition in children.
- Treatment options for SGS include endoscopic balloon dilation (EBD) and laryngotracheal reconstruction (LTR).
- General anesthesia (GA) exposure in early childhood is a growing concern due to potential neurocognitive effects.
Purpose of the Study:
- To compare the total time spent under general anesthesia (GA) and the number of procedures required for treating pediatric subglottic stenosis (SGS).
- To evaluate the impact of different treatment modalities, specifically EBD versus LTR, on anesthesia exposure and procedural burden.
- To analyze the relationship between SGS severity and treatment-associated anesthesia and procedures.
Main Methods:
- Retrospective review of 31 children with SGS treated between November 2014 and August 2020.
- Inclusion criteria included a completed treatment course (12 months without airway intervention).
- Data collected included age at first procedure, treatment modality (EBD, LTR, or both), total GA hours, and number of procedures.
Main Results:
- Children undergoing LTR (n=13) received significantly more GA (17.1 ± 7.9 hours) and procedures (11.1 ± 4.9) compared to EBD alone (n=18; 6.2 ± 3.0 hours; 5.9 ± 3.5 procedures).
- Each EBD procedure added 0.96 hours of anesthesia, while each LTR procedure added 7.0 hours.
- Both GA exposure and procedure count increased with higher grades of SGS.
Conclusions:
- Laryngotracheal reconstruction (LTR) is associated with a substantial increase in general anesthesia (GA) exposure and procedural burden compared to endoscopic balloon dilation (EBD) for subglottic stenosis (SGS).
- While anesthesia exposure may not solely dictate treatment choice, it is a critical factor for parental counseling due to potential neurocognitive risks.
- SGS severity directly correlates with increased anesthesia exposure and the number of interventions required.
Objectives:
This study describes time spent under general anesthesia (GA) and number of procedures in children with subglottic stenosis (SGS) treated with endoscopic balloon dilation (EBD), laryngotracheal reconstruction (LTR), or both.
Methods:
Children treated for SGS surgically between November 2014 through August 2020 were included. Patients with completed treatment course, defined as not having an airway intervention for a 12-month period, were included. All procedures important to the overall management of SGS were included.
Results:
Thirty-one children met inclusion criteria. Median age at first procedure was < 1 year of age, with 80.6% of patients undergoing GA before age 3. Children who had an LTR (n = 13) received 17.1 ± 7.9 h of anesthesia and 11.1 ± 4.9 procedures associated with their treatment course. Children treated with EBD alone (n = 18) had 6.2 ± 3.0 h of anesthesia and 5.9 ± 3.5 procedures during their treatment course. The average duration of GA exposure and number of procedures increased with increasing SGS grade. Each EBD was associated with an additional 0.96 h of anesthesia while each LTR procedure was associated with 7.0 h of additional anesthesia.
Conclusions:
GA exposure and number of procedures increased with increasing degree of stenosis. Undergoing LTR predicted a significant increase in GA exposure and number of procedures compared to patients managed with EBDs alone. While anesthesia exposure may not be a decisive factor in selecting a treatment course, it remains an important topic to discuss with parents, especially given increasing awareness of its potential risks to neurocognitive development.
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