1. Combined Optical Coherence Tomography and Endobronchial Ultrasonography for Laser-Assisted Treatment of Postintubation Laryngotracheal Stenosis

    Combined Optical Coherence Tomography and Endobronchial Ultrasonography for Laser-Assisted Treatment of Postintubation Laryngotracheal Stenosis

    We describe the use of combined optical coherence tomography (OCT) and endobronchial ultrasonography (EBUS) to identify the residual hypertrophic tissues and persistent inflammation that are known contributors to stricture recurrence after laser-assisted mechanical dilation (LAMD) of laryngotracheal stenosis (LTS). Methods : Commercially available high-frequency EBUS (approximately 100-μm resolution) and time-domain OCT (approximately 10- to 20-μm resolution) systems were used to visualize airway wall microstructures in the area of hypertrophic tissue formation before and after LAMD in 2 patients with complex circumferential postintubation LTS. Results : Before LAMD, EBUS revealed a homogeneous layer consistent with hypertrophic tissue overlying a hyperechogenic layer ...

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