This critical review examines several studies to determine the effectiveness of sphincter pharyngoplasty (SP) compared to pharyngeal flap surgery (PF) in reducing hypernasality in individuals with velopharyngeal insufficiency (VPI). Overall, research indicates preliminary evidence that both surgeries produce similar results in reducing hypernasality. However, some questions arose as to the stre...

PURPOSE To investigate the postoperative outcomes of pharyngeal flap surgery (PF) and secondary palatoplasty with intravelar veloplasty (IV) in the velopharyngeal insufficiency management regarding nasalance scores and velopharyngeal area. METHODS Seventy-eight patients with cleft palate±lips submitted to surgical treatment for velopharyngeal insufficiency, for 14 months on an average, were e...

Vowel space area (VSA) refers to a two-dimensional area, which is bounded by lines joining F1and F2 coordinates of vowels. In the speech of individuals with cleft lip and palate (CLP), the effect of hypernasality introduces the pole-zero pairs in the speech spectrum, which will shift the formants of a target sound. As a result, vowel space in hypernasal speech gets affected. In this work, analy...

Automatic detection of hypernasality in voices of children with Cleft Lip and Palate (CLP) is made considering two charcaterization techniques, one based on acoustic, noise and cepstral analysis and other based on nonlinear dynamic features. Besides characterization, two automatic feature selection techniques are implemented in order to find optimal sub-spaces to better discriminate between hea...

Purpose: to investigate the effectiveness of a pharyngeal bulb prosthesis eliminate hypernasality in patients with operated cleft palate presenting diagnosis hypodynamic velopharynx. Methods: twenty palate, ages 11-40 years, velopharynx participated study. Patients had their speech audio recorded twice, and without prosthesis, simultaneously nasometry. Three speech-pathologists rated presence a...

In children with cleft lip and palate speech disorders appear often. One major disorder amongst them is hypernasality. This is the first study which shows that it is possible to automatically detect hypernasality in connected speech without any invasive means. Therefore, we investigated MFCCs and pronunciation features. The pronunciation features are computed from phoneme confusion probabilitie...

Action rules [6] have been applied so far in various domains, including banking, music, and medicine. In this paper, medical data are also taken into account, but we propose extraction of rules for data representing changes of medical parameters over time. The extracted rules are called object-driven action rules. The database used in experiments describes observations of hypernasality treatmen...

INTRODUCTION  The velopharyngeal sphincter (VPS) is a muscle belt located between the oropharynx and the nasopharynx. Investigations of velopharyngeal function should include an auditory-perceptual evaluation and at least 1 instrument-based evaluation such as videonasoendoscopy. AIM  To compare the findings of auditory-perceptual evaluation (hypernasality) and videonasoendoscopy (gap size) in...

Currently, there is no consensus regarding how to determine the optimal surgical procedure for a patient with velopharyngeal incompetence (VPI) post-primary palate repair. The purpose of the present study was to assess the effect of preoperative velar closing ratio (VCR) and lateral wall movement (LWM) on nasal emission and hypernasality after Furlow double-opposing Z-plasty. A retrospective an...