[Direct electric stimulation of the denervated posterior cricoarytenoid muscle triggered by subglottic temperature in the cat. Preliminary to a laryngeal pacemaker].

Using a temperature sensor to detect inspiratory fresh air flow in the subglottis, we triggered direct electrical stimulation of unilaterally denervated posterior cricoarytenoid muscle (PCA) in cats. Respiratory air flow temperature variations were recorded in awake animals and stimulation of the PCA resulting in vocal cord abduction was obtained several weeks after surgery. Difficulties related to chronic implantation and stimulation are discussed. Their solutions are required before laryngeal pacemaker is used.