Sarcoidosis with cranial polyneuritis and mediastinal granulomatous compression as a cause of unilateral left vocal fold paralysis has been reported infrequently. No case of sarcoidosis causing bilateral vocal fold paralysis in the abducted position has been reported in the Otolaryngology/Voice literature. Vocal fold function can be impacted in sarcoidosis by direct laryngeal involvement or by ...

OBJECTIVES/HYPOTHESIS The diagnosis of paresis in patients with vocal fold motion impairment remains a challenge. More than 27 clinical parameters have been cited that may signify paresis. We hypothesize that some features are more significant than others. STUDY DESIGN Prospective case series. METHODS Two laryngologists rated laryngoscopy findings in 19 patients suspected of paresis. The di...

BACKGROUND Little information is available regarding the prevalence of laryngeal pathology in adults. PURPOSE To estimate the prevalence of occult laryngeal pathology in a community-based cohort of adults over 40 years of age. METHODS One hundred consecutive volunteers over age 40 with no history of voice disorders were enrolled. All completed a self-administered laryngeal symptom questionn...

In this paper we propose a combined scheme of linear prediction analysis for feature extraction along with linear projection methods for feature reduction followed by known pattern recognition methods on the purpose of discriminating between normal and pathological voice samples. Two different cases of speech under vocal fold pathology are examined: vocal fold paralysis and vocal fold edema. Th...

The recognition and training algorithms for autoregressive hidden Markov models were developed in order to solve the task of vocal fold pathology detection. Three databases were created and used for 3 vocal pathologies detection. During the experiments the proposed vocal tract pathology detection system based on autoregressive hidden Markov models and wide-range AFT mel-spectrum provides very h...

Voice pathologies are a growing social concern, due to the role that voice and speech play in the performance of certain professions, and in the general population quality of life. In these last years emphasis has been placed in the early detection of these pathologies, for which computer tools performing voice processing are used to evaluate certain time and spectrum domain parameters to infer...

This paper investigates the effectiveness of measures related to vocal tract characteristics in classifying normal and pathological speech. Unlike conventional approaches that mainly focus on features related to the vocal source, vocal tract characteristics are examined to determine if interaction effects between vocal folds and the vocal tract can be used to detect pathological speech. Especia...

Diagnosis and treatment of the immobile or hypomobile vocal fold are challenging for the otolaryngologist. True paralysis and paresis result from vocal fold denervation secondary to injury to the laryngeal or vagus nerve. Vocal fold paresis or paralysis may be unilateral or bilateral, central or peripheral, and it may involve the recurrent laryngeal nerve, superior laryngeal nerve, or both. The...