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Prevalence of Laryngeal Muscle Tension in Patients With Obstructive Sleep Apnea

Reviewed by Corinne Jarvis
Written by Corinne Jarvis Published 11/16/2020 Updated 08/12/2023

Introduction:

Obstructive sleep apnea (OSA) is a common sleep disorder characterized by repeated episodes of partial or complete upper airway obstruction during sleep. While the primary cause of OSA is often attributed to anatomical factors such as a narrow airway or obesity, recent research suggests that laryngeal muscle tension may also play a significant role. In this blog post, we will explore a recent article that investigates the prevalence of laryngeal muscle tension in patients with OSA and its implications for diagnosis and treatment.

Understanding Laryngeal Muscle Tension:

Laryngeal muscle tension refers to the excessive contraction or tightness of the muscles surrounding the larynx (voice box). This tension can contribute to airway obstruction by narrowing the upper airway and increasing the resistance to airflow during sleep. While the exact mechanisms underlying laryngeal muscle tension in OSA are not fully understood, it is believed to be related to increased sympathetic nervous system activity and abnormal muscle reflexes.

The Study:

The article focuses on a study conducted to determine the prevalence of laryngeal muscle tension in patients with OSA. The researchers recruited a group of individuals diagnosed with OSA and assessed them using laryngeal electromyography (LEMG), a diagnostic tool that measures the electrical activity of the laryngeal muscles. The study aimed to identify the presence and severity of laryngeal muscle tension in these patients.

Key Findings:

The study revealed a high prevalence of laryngeal muscle tension in patients with OSA. The majority of participants exhibited abnormal LEMG findings, indicating increased muscle activity and tension in the laryngeal region during sleep. The severity of laryngeal muscle tension was positively correlated with the severity of OSA, suggesting a potential link between the two conditions.

Implications for Diagnosis and Treatment:

The identification of laryngeal muscle tension in patients with OSA has important implications for diagnosis and treatment. Traditionally, OSA has been primarily attributed to anatomical factors, leading to treatments such as continuous positive airway pressure (CPAP) therapy or surgical interventions. However, the presence of laryngeal muscle tension suggests that a more comprehensive approach may be necessary.

Diagnosing laryngeal muscle tension in patients with OSA can be challenging as it requires specialized techniques such as LEMG. However, recognizing this condition is crucial as it may influence treatment decisions. For instance, individuals with laryngeal muscle tension may benefit from therapies that specifically target muscle relaxation, such as myofunctional therapy or certain medications.

Conclusion:

The prevalence of laryngeal muscle tension in patients with obstructive sleep apnea highlights the need for a comprehensive understanding of the underlying mechanisms contributing to this sleep disorder. Identifying and addressing laryngeal muscle tension can potentially enhance the effectiveness of treatment approaches and improve patient outcomes. Further research is necessary to explore the specific causes and mechanisms of laryngeal muscle tension in OSA and to develop targeted interventions to alleviate this condition.

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