Acute asphyxia caused by Gerhardt's syndrome associated with asthma.

Vocal cord dysfunction (VCD) has been frequently discussed as confounding the diagnosis of asthma, and it is recommended to examine vocal cord function in cases of difficult asthma. However, there is also strong evidence that asthma may be associated with VCD, sometimes masquerading as exercise-induced asthma. Gerhardt's syndrome frequently induces severe acute respiratory distress requiring ventilatory support, and this condition might be mistaken for a severe acute asthma attack. Here, a case of bilateral paralysis of the vocal cords, which was associated with asthma, is described.