[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.
Lacau St Guily
J
J
Service d'Oto-Rhino-Laryngologie et de Chirurgie Cervico-Faciale, Hôpital Tenon, Paris.
Sebille
A
A
Fontanges
P
P
D000818:Animals; D001831:Body Temperature; D002415:Cats; D004558:Electric Stimulation; D007817:Laryngeal Cartilages / Q000502:physiology*; D007831:Larynx, Artificial; D009121:Muscle Denervation; D009132:Muscles / Q000502:physiology*; D012123:Pulmonary Ventilation
Stimulation électrique directe du muscle crico-aryténoïdien postérieur dénervé, déclenchée par la température sous-glottique chez le chat. Préliminaires au pacemaker laryngé.