Active clinical trials for "Vocal Cord Paralysis"

Larynx performs important functions of the aero-digestive tract, it has vital role in control of breathing, phonation, deglutition and protection of lower respiratory tract from aspiration. Vocal cord paralysis is a common and at times debilitating laryngeal dysfunction that has great social and economic impact on patients life. Medialization thyroplasty (MT), if done accurately and up to the expectations of the patient is very rewarding. However different materials with some modifications in the technique of the classical Isshiki type 1 thyroplasty is in practice, each with its own profile of benefits and disadvantages. Most of them are costly and out of reach of general population. In this regard, we aim to test a prolene mesh implant, which is easily available and can be placed with relative ease.

Total arytenoidectomy is claimed to increase risk of aspiration and cause more voice loss than other operations performed for bilateral vocal fold paralysis (BVFP). However, objective evidence for such conclusion is lacking. There is no study comparing swallowing and voice after total and partial arytenoidectomy.

Bilateral laryngeal reinnervation induces a rise in laryngeal resistance and speech alteration. The aim of this study is to propose laryngeal reinnervation by a phrenic nerve root to patients with bilateral laryngeal paralysis.

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.

The purpose of this study is to determine how often heart or chest surgery in children leads to problems with the movement of the vocal folds.

The primary study goal is to evaluate the histological characteristic of Silk Voice to evaluate the potential for Silk Voice to deliver long-term results to patients.

The study tries to see the effect of using a combination of platelet-rich fibrin (PRF) and autologous fat as a filler for injection laryngoplasty procedures to treat unilateral adductor vocal cord paralysis.

People who had paralysis of the vocal cords are often prevented from breathing by this problem because the cords will not open, and the patients have to wear a tracheostomy (neck breathing tube) to bypass this airway obstruction. This study examines the effects of vocal cord opening triggered by a pacemaker implanted over the chest wall. The device is connected to a nerve taken from a muscle close to the larynx (voice box) and implanted into the paralysed laryngeal muscle so it can reinnervate it. When this process is complete after a few weeks, the stimulator is turned on and the level of vocal cord opening is assessed. Airway improvement is checked by pulmonary function tests and measurements of vocal cord opening. The ultimate goal of the study is to lead to situations where patients with bilateral vocal fold paralyses could get rid of the neck breathing tube to have less complications, be more comfortable and socially acceptable.

Thyroidectomy is a common surgical procedure in France. Recurrent paralysis is one of the main complications. Oral corticosteroid therapy are frequently used at a dosage of 1mg/kg for seven days, in case of recurrent paralysis to obtain remobilization as early as possible. The main objective is to evaluate the efficacy of oral corticosteroid therapy in remobilization of vocal cords at seven days in patients with unilateral recurrent paralysis after thyroidectomy.

The purpose of this study is to see how the brain re-learns to control the larynx in speaking and swallowing when undergoing surgical rehabilitation in the form of either thyroplasty or vocal fold augmentation for unilateral vocal cord paralysis. What is needed is information on how the brain re-learns to control speaking and swallowing so that we can eventually learn how to help patients re-learn faster after their procedure. Functional Magnetic Resonance Imaging (or fMRI) will allow us to image your brain as you speak and swallow. We will produce "brain maps" for speaking, swallowing and hand movements.