An apparatus to measure pressure, flow and speech parameters in patients producing speech using the Groningen valve prosthesis.


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… (More)


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