What causes and what is tracheal malacia?

Floppy airway: Tracheomalacia is a condition where the trachea (windpipe) collapses too easily, usually causing more trouble with expiration (or breathing out) it can have various causes including previous heart or chest surgery, prematurity, or can be a primary problem symptoms are noisy breathing, harsh brassy cough, sometimes "dying spells" should be diagnosed with a bronchoscopy.