Edema de la mucosa y de la submucosa de la laringe producido gerneralmente por una reacción alérgica y que puede provocar una disnea grave.

   <(F.): Oedème aigu du larynx: est une inflammation aiguë du larynx provoquée par une infection (virale ou bactérienne) ou éventuellement une allergie. La laryngite et l’œdème provoquent un rétrécissement du passage de l’air et une gêne respiratoire pouvant évoluer vers une quasi-asphyxie dans les formes graves.

   <(In.): Edema of the larynx, laryngoedema, Laryngeal edema, Laryngeal Oedema: edema of any region of the larynx from a variety of causes. In the earliest stages it may be difficult to differentiate from infection, although mucosal injection and erythema are found more often in the latter. Allergic edema may result as a response from provocation induced by foods, inhalants, and drugs. The entire respiratory tract or only an isolated portion of the larynx may be affected. Laryngeal edema may also be hereditary. Other possible causes of laryngeal edema include increased capillary pressure due to superior vena cava syndrome, internal jugular vein ligation, lowered plasma osmotic failure induced by renal failure, impaired lymphatic flow, and increased capillary permeability to proteins.

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