Therapeutic laryngoscopy during exercise: A novel non‐surgical therapy for refractory EILO
2017
SummaryBackground
Exercise-induced laryngeal obstruction (EILO) may affect as many as 6% of the adolescent population, with some patients experiencing symptoms refractory to conservative interventions.
Objectives
This report describes therapeutic laryngoscopy during exercise, a novel, non-surgical intervention that harnesses real-time laryngoscopy video as biofeedback to control laryngeal aperture during high-intensity exercise. Additionally, we quantitate patient-reported perceptions of procedure safety, tolerability, learning value, and effectiveness.
Methods
Clinical EILO patients with symptoms refractory to conventional respiratory retraining and other therapies were referred for the procedure which features laryngoscopy video as biofeedback during serial physician-guided 1-min exercise sprints. We quantify perceptions of procedure safety, tolerability, learning value, and effectiveness through questionnaires offered to all patients as well as observers of the procedure.
Results
Forty-one patients and 37 parent observers were approached for feedback; 88% of patients and 95% of observers consented to participation. Patients and observers reported perceptions of safety and tolerability (81% and 86%, respectively), learning value (78% and 91%, respectively), and effectiveness (58% and 80%, respectively) with patient age predicting some responses. Seventy-five percent of patients noted that “Since the procedure, my breathing during exercise has improved,” and 85% of this group noted that therapeutic laryngoscopy during exercise was “the most important therapy leading to my breathing improvement.” The procedure also provided insight into the psychological experience of patients, a domain not clinically apparent prior to the procedure.
Conclusions
Our data support further study of therapeutic laryngoscopy during exercise as a possible intervention for patients with refractory EILO. Pediatr Pulmonol. 2017;52:813–819. © 2016 Wiley Periodicals, Inc.
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