LARYNGOSTASIS AND THE LARYNGOSTAT

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Abstract
One of the greatest difficulties to be overcome in operative direct laryngoscopy is the tendency of the ventricular bands to close partially and sometimes completely the supraglottic larynx, so that the cords are not visible (Fig. 1). A second difficulty is the great difference in the appearance of the cords as compared with mirror laryngoscopy, in which, on inspiration especially, the ventricular bands remain well back to their respective sides, and the cords look thin and flat and often almost white.Fig. 1.—Pencil sketches, illustrating laryngostasis as contrasted with ordinary direct laryngoscopy. At 2 is shown schematically the broad, general view of the larynx afforded by the standard laryngoscope; the cords are rounded, the ventricular bands overhang the cords; moreover, in this procedure the cords move spasmodically and accurate work is impossible until the operator has learned the knack of laryngostasis. At 1 is shown schematically the view in the

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