OBJECTIVE To evaluate the long-term aerodynamic, acoustic, and electromyographic effects of serial botulinum toxin (BT) injections in patients with adductor spasmodic dysphonia. DESIGN Two-year, nonrandomized, controlled, before-after study. SETTING Ambulatory care clinic at a single academic medical center. PATIENTS A convenience sample of 91 patients with adductor spasmodic dysphonia ev...

Ventricular dysphonia, also known as dysphonia plicae ventricularis, is a disorder of speech in which the ventricular folds (false vocal folds, FVFs) participate pathologically in phonation. 1,2 Although the first anatomic illustrations of the false folds were done in 1775 by Santorini ,3 their role in phonation was not completely understood. In 1860, 6 years after the introduction of the laryn...

Introduction: People with speech disorders such as dysarthria and dysphonia have difficulty producing speech, which is often related to muscle dysfunction. Neuromuscular electrical stimulation (NMES) can activate motor units improve their tropism functionality. Therefore, this systematic review aimed evaluate the effects of NMES on phonation, voice quality, intelligibility, strength, quality li...

OBJECTIVE To evaluate clinician perception of voice quality, patient self-reported psychosocial impact of dysphonia, and glottic closure in patients who have undergone resection of the recurrent laryngeal nerve (RLN) and immediate operative reconstruction during thyroid surgery. STUDY DESIGN Prospective observational study. SETTING Single tertiary care hospital. SUBJECTS AND METHODS Nine ...

The study was performed to investigate the relationship between perceived muscle tension and electromyographic hyperactivity and to what extent electromyographic (EMG) hyperactivity relates to personality traits in fibromyalgics. Thirty-six females with fibromyalgia performed isokinetic maximal forward flexions of the shoulder combined with surface EMG recordings of the trapezius and infraspina...

in this study, effects of buthus eupeus venom on chick biventer cervices nerve-muscle preparation were investigated by twitch tension method. the venom, at 1.3 ?g/ml, increased contractile responses in indirect stimulations. these effects were milder in direct muscle stimulations. it also caused significant enhancement in postjunctional sensitivity as assessed by responses to exogenous acetylch...

1. Tension in a resting muscle increases when the muscle is stretched. If the stretch is maintained, the tension decays (stress relaxation). The time course of stress relaxation in the metathoracic second tergocoxal muscle (Tcx2) of the locust Schistocerca americana was found to be adequately described by a multiexponential function with four or more time constants. These constants were indepen...

BACKGROUND/AIM Spasmodic dysphonia (DS) is a disabling speech disturbance appearing as the consequence of dystonic vocal folds contraction. Its intermittent appearance in the laryngeal muscles causes vocal function discontinuation. The quality of life of these patients is significantly disturbed. Surgical and a medical therapy appear to be inadequate and unsuccessful ones of no steady improveme...

BACKGROUND AND OBJECTIVE Carnatic singing is a classical South Indian style of music that involves rigorous training to produce an "open throated" loud, predominantly low-pitched singing, embedded with vocal nuances in higher pitches. Voice problems in singers are not uncommon. The objective was to report the nature of voice problems and apply a routine protocol to assess the voice. METHODS F...