Systemic lupus erythematosus (SLE) is a chronic inflammatory disease encompassing a broadened spectrum of clinical manifestations. Vocal cords involvement in SLE is not a frequent entity but can be life threatening if not treated. We hereby report the case of a patient presenting with cricoarytenoiditis and vocal cord dysfunction revealing SLE.

INTRODUCTION Dysphonias due to primary neurogenic disorders are a group of voice disorders that can be caused by both central and peripheral disorders of the larynx innervation. There are numerous causes leading to paralysis of superior and/or inferior laryngeal nerves, particularly of the inferior laryngeal or recurrent nerve. VOICE THERAPY IN UNILATERAL VOCAL CORD PARESIS: Vocal therapy is an...

background:speech is the most important communication tool and is the smooth product of four systems: respiratory, phonatory, resonatory, and articulatory. currently, a variety of voice disorder occurred because of life style and environmental pollutants. vocal nodule is one of the most prevalent disorders in this category. considering the point that the air required for vocal cords vibration i...

The human speech production system is composed of the lungs, trachea, larynx, nasal cavity and oral cavity as shown in Fig. 1. Speech is simply a sound wave originating from the lungs. Air coming out of the lungs first passes through the trachea and then through the vocal tract. The shape of the vocal tract determines the speech sound produced. The position of the lips, tongue, velum, teeth and...

Pneumatic actuators afford advantages such as flexibility, low weight, and explosion-proofness. However, increasing the number of pressure supply tubes using solenoid valves in a multi-degree-of-freedom system may negate these advantages. Therefore, this study proposes soft actuator that uses self-excited vibrations realized by an airflow between two flexible plates to open close valve manner s...