View clinical trials related to Vocal Cord Paralysis.
Filter by:The objective of this study is to evaluate pre- and intraoperative voice quality, the degree of vocal fold closure and the Maximum Phonation Time (MPT), first determined after temporary APrevent® VOIS implantation and then after permanent existing product implantation.
This study will investigate the safety and efficacy of a silk protein microparticle-based filler for vocal fold injection augmentation to treat dysphonia/dysphagia secondary to vocal fold paralysis. Participants will receive one injection and follow-up for a planned period of 12 months.
Thyroid and parathyroid surgery concerns around 50 000 patients a year in France. One of its main complications is paralysis of vocal cords, and the consequences can be serious. In this study, the main gold is to evaluate diagnostic performances of ultrasound for an early diagnosis (as soon as awakening of the patient) of vocal cords paralysis in the post-operative period in order to prevent at best complications.
Population-based single centre, blinded, prospective cohort study of the impact of recurrent laryngeal nerve (RLN) injury on Thoracic Surgery patients. The principal outcome of interest is the effect of RLN injury on respiratory complications. Voice, swallowing, cardiac and mortality outcomes will also be determined.
The purpose of this study is to help determine the most effective treatment for participants with Unilateral Vocal Fold Paralysis. There are currently two types of operations used to treat this condition. One operation is called thyroplasty. Doctors place a small piece of safe plastic into the side of the participant's voice box to push the weak vocal cord into a position to enable better speech and swallowing. In the other operation called laryngeal reinnervation, doctors repair the neck nerve supply to the vocal cord using parts of other unaffected nerves to enable better speech and swallowing. The investigators do not know which of these methods is better and are conducting this study to start comparing the two operations so that a larger clinical trial can be conducted in the future to tell us which operation is best.
Long term assesment of voice outcome after Montgomery Thyroplastie by performing a Survey of operated patients using the voice handicap index scale
This is the first Development Safety Update Report prepared for Phase I-IIA Clinical Trial- FIBHGM-ECNC007-2010 (PHASE I / IIA CLINICAL TRIAL, UNICENTRIC, RANDOMIZED, CONTROLLED, TWO PARALLEL-GROUPS, TO EVALUATE THE SAFETY OF A NEW THERAPY WITH STEM CELLS DERIVED FROM ADIPOSE TISSUE FOR GLOTTAL GAP(GG) IN THE UNILATERAL PARALYSIS OF THE VOCAL CORD(VC) ) in the International Conference on Harmonization (ICH). Patients are randomized to receive one of the following therapeutic strategies: Group A: Autologous Fat processed by centrifugation to fill a paralyzed vocal cord. Group B: Autologous Fat enriched with stem cells from adipose tissue to treat vocal cord paralysis. Active control: Autologous fat tissue processed by centrifugation. Route of administration: Injection into a paralyzed vocal cord. Experimental drug: Stem cells from autologous adipose tissue in which autologous tissue is enriched or in suspension to fill the paralyzed vocal cord. The aim is to induce the overexpression and production of microvessels at local level. Route of administration: injection into the thickness of a paralyzed vocal cord.
The purpose of the study is to compare results of the treatment of tumorous and non-tumorous laryngotracheal stenosis using thulium contact laser versus carbon dioxide laser used in the past.
This project is a first attempt to assess cough airflow dynamics and true vocal fold (TVF) adduction and abduction angles during voluntary cough to examine the effects of changes in glottal closure due to reduced mobility of one true vocal fold. The hypothesis of this study is that the incomplete glottal closure due to reduced vocal fold mobility will result in changes in true vocal fold adductory and abductory angles during cough and will result in changes to voluntary cough airflow parameters. This study results will contribute to the existing knowledge of the laryngeal contribution to cough airflow dynamics.
Backgrounds: Unilateral vocal cord paralysis caused from recurrent laryngeal nerve (RLN) injury is not an unusual disease and may deteriorate patients'voice and swallowing outcomes. Although the long term treatment effect is encouraged, the point when to perform surgical treatment is not conclusive. Previous reports suggested late treatment principle because patients may spontaneous reinnervation to some degree within 4-5 months after injury. The vocal cord position and tone may change during reinnervation. Others delineated laryngeal synkinesis by misdirected reinnervation is common and suggested early temporary injection laryngoplasty. They implied early injection laryngoplasty may improve patients'not only short term voice outcomes but also decrease the incidence of transcervical laryngeal framework surgery as a determined surgery. However, lacking of prospective study and objective data makes the treatment-time policy still controversial. Purposes: 1. To find incidence of spontaneous reinnervation or synkinetic regeneration. 2. To detect the relationship between changing of glottal gap and laryngeal synkinesis. 3. To detect the impaction of early intracordal hyaluronic acid injection on vocal cord position change in patients with laryngeal synkinesis. Study design: Forty patients is planned to be enrolled in the study. Twenty of them will undergo hyaluronate intracordal injection at three-six month from RLN damage. The other 20 patients will follow the watch-and wait policy. Laryngoscope, laryngeal EMG (electromyography), voice analysis and voice outcome survey will be done at 3-6 month and 12-month after RLN injury. At the end of follow up, the glottal gap, voice laboratory data and quality of life will be compared. The outcomes will also be correlated with laryngeal electromyography (LEMG) data and the impact of synkinetic reinnervation.