title: An apparatus to measure pressure, flow and speech parameters in patients producing speech using the Groningen valve prosthesis.
abstract: We present a validated method of determining in vivo pressure, flow and voice parameters from patients using tracheo-oesophageal voice prostheses post laryngectomy. This apparatus was constructed simply using equipment which should be available in most large Otolaryngology Departments. There was good agreement between measurements made over two separate sessions of in vivo opening pressure, maximum flow through the device and maximum voice amplitude and these were significant. These measurements may be useful in monitoring patient progress and also in elucidating the mechanics of prosthesis failure.
authors: Department of Otolaryngology, Head and Neck Surgery, Royal Hallamshire Hospital, Sheffield.
authors: A J
authors: AJ
authors: Parker
authors: J C
authors: JC
authors: Stevens
authors: R T
authors: RT
authors: Clegg
mesh_terms: D000403:Airway Resistance / Q000502:physiology; D004867:Equipment Design; D006801:Humans; D007831:Larynx, Artificial; D008397:Masks; D010699:Phonation / Q000502:physiology; D011312:Pressure; D012212:Rheology; D013071:Speech, Alaryngeal; D014132:Trachea / Q000502:physiology