Both asthma and COPD can experience acute exacerbations. These exacerbations can lead to increased symptoms, including breathing difficulties, cough, and the characteristic wheezing associated with asthma, as well as a feeling of tightness in the chest. Experts refer to such worsening symptoms as an exacerbation, which can interfere with daily activities and can be dangerous without immediate medical care.
Study Investigates Voice Changes in Asthma and COPD
A study led by Dr. Sami Simons, an assistant professor at Maastricht University in the Netherlands, reveals that voice alterations occur during acute exacerbations of both conditions.
For the study, the research team collected data over a twelve-week period from 38 individuals with COPD and 35 individuals with asthma. Participants recorded their voices daily using a specially designed app, which analyzed their vocal data. Each person initially recorded a prolonged “A” sound, followed by reading a short text or answering a question. Additionally, they provided daily feedback through a questionnaire regarding any worsening symptoms.
How Voice Changes During an Exacerbation
The analysis indicated that at the onset of an acute exacerbation, several vocal characteristics change. These include alterations in pitch, increased pause frequency, and an overall decline in voice quality. As the condition of the individuals improved, these vocal measures returned to their normal state.
Dr. Simons explains the physiological reasons behind these changes: “During an exacerbation, the airways narrow, restricting airflow past the vocal cords. This hampers the usual vibration of the vocal cords and makes it difficult to maintain a stable voice. As a result, a person’s voice during an exacerbation may sound ‘wheezy’ and ‘rough.’
New App Could Early Detect Acute Exacerbations
In the long term, such an app may assist individuals with asthma or COPD by providing an early warning system based on vocal changes, allowing timely intervention. Building upon the current findings, researchers have already enhanced their algorithms to detect exacerbations up to three days before the onset of initial symptoms, based on voice changes. This technology is currently being tested in two additional studies: the VOCAL study in Brazil and the SPEAK study in the Netherlands.
In conclusion, understanding the relationship between voice changes and exacerbations in asthma and COPD is crucial. This research opens avenues for early intervention and customized patient care, potentially improving health outcomes for millions.
