Optical coherence tomography (OCT) is an evolving noninvasive imaging modality that has been used to image the human larynx during surgical endoscopy. The design of a long gradient-index lens-based probe capable of capturing images of the human larynx by use of spectral domain OCT during a typical office-based laryngoscopy examination is presented. An optical-ballast-based 4f optical relay system is proposed to realize variable working distance with a constant optical delay. In-vivo OCT imaging of the human larynx is demonstrated. Office-based OCT is a promising imaging modality for early laryngeal cancer diagnosis.
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http://dx.doi.org/10.1117/1.3076198 | DOI Listing |
Cureus
December 2024
Otolaryngology, Head and Neck Surgery, Ehime University Graduate School of Medicine, Toon, JPN.
Thermal burns of the larynx are uncommon but can lead to serious upper airway obstruction due to edema and bleeding, especially in children who may struggle to communicate their symptoms effectively. This report presents the case of a one-year-and-seven-month-old boy who developed stridor and respiratory distress after eating a heated potato, which ultimately required tracheal intubation. The initial evaluation suggested foreign body aspiration; however, laryngoscopy confirmed significant arytenoid swelling and airway narrowing due to thermal burns.
View Article and Find Full Text PDFInt J Surg Oncol
January 2025
Federal University of Espírito Santo (UFES), Vitória, Espírito Santo, Brazil.
As head and neck cancer (HNC) affects regions directly related to the digestive tract, it is consistently associated with nutritional impact symptoms (NISs), which further reduce food intake and affect nutritional status. Early identification of patients with NIS can assist therapy. This is a cross-sectional study with HNC patients from a cancer reference hospital.
View Article and Find Full Text PDFJ Voice
January 2025
ENT Department, Valencia University General Hospital, Valencia, Spain; Medicine School of Valencia, University of Valencia, Valencia, Spain.
Objetives: Montgomery medialization thyroplasty involves fitting a silicone prosthesis in the thyroid cartilage according to gender-based placement criteria. This standardized procedure can lead in some cases to suboptimal results. The aim of this study is to identify individual anatomical differences between same-gender patients that could explain the occasional failures.
View Article and Find Full Text PDFJ Acoust Soc Am
December 2024
Department of Head and Neck Surgery, University of California Los Angeles, Los Angeles, California 90095-1794, USA.
Previous studies of laryngeal and respiratory control of the voice source often focus on main effects of individual control parameters but not their interactions. The goal of this study is to systematically identify important interaction effects in laryngeal and respiratory control of the voice source and vocal fold contact pressure in a three-dimensional voice production model. Computational simulations were performed with parametric variations in vocal fold geometry, stiffness, prephonatory glottal gap, and subglottal pressure.
View Article and Find Full Text PDFCureus
November 2024
Anesthesiology and Critical Care, Kindai University Faculty of Medicine, Osaka, JPN.
Background: Epiglottic masses are often asymptomatic, making them difficult to detect during preoperative examinations. Consequently, anesthesiologists may face ventilation difficulties with no apparent cause. Epiglottic masses can sometimes obstruct laryngoscope insertion into the epiglottic vallecula, complicating general anesthesia induction.
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