Signs and symptoms of laryngeal compromise from Ludwig's Angina with suggested clinical management

Image taken from article: Greenland KB, Acott C, Segal R, Riley RH, Merry AF.  Delayed airway compromise following extubation of adult patients who required surgical drainage of Ludwig’s angina: comment on three coronial cases.  Anaesthesia and Intensive Care, Vol. 39, No. 3, May 2011.  pp 506-508.