VCD-EILO also know as Vocal Cord Dysfunction-Exercise Induced Laryngeal Obstruction is often being misdiagnosed as asthma. VCD-EILO is a type of vocal cord dysfunction that is triggered by exercise. Rather than opening, the vocal cord and laryngeal tissue close, affecting the athlete’s breathing pattern, stress level and performance. The apparent symptom is shortness of breath which may relate to asthma.

The best way to diagnosis VCD-EILO is to have an endoscopic study to monitor the vocal cords when they are in the height if exercises. If this can not be done then the physician will make the diagnosis if the athlete meets the parameters of vocal cord dysfunction. Early recognition or early suspicion can be helpful to refer to the appropriate expert. 

VCD-EILO Symptoms                Asthma Symptoms

Breathing sounds high pitched, grating        Breathing sounds like wheezing

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