Clinical parameters in obstructive sleep apnea: are there any correlations?

Area of Science:

• Otorhinolaryngology
• Sleep Medicine
• Pulmonology

Background:

• Obstructive sleep apnea (OSA) is a common condition characterized by repeated upper airway collapse during sleep.
• Accurate assessment of OSA severity is crucial for effective management and treatment.

Purpose of the Study:

• To evaluate the relationship between clinical symptoms and physical examination findings and the severity of obstructive sleep apnea (OSA).

Main Methods:

• Prospective observational study conducted in a tertiary referral sleep clinic.
• Included 80 consecutive patients suspected of having OSA.
• Assessed clinical parameters such as BMI, Epworth Sleepiness Scale (ESS), tonsil size, Mallampati index (MMP), Müller manoeuvre, and polysomnographic data (AHI, lowest oxygen saturation).

Main Results:

• A significant correlation was observed between ESS scores and pharyngeal wall collapse during the Müller manoeuvre.
• Body Mass Index (BMI) was associated with hypertension, MMP, and lateral wall collapse.
• OSA severity showed significant correlations with male gender, hypertension, BMI, MMP, and upper airway collapse during the Müller manoeuvre.

Conclusions:

• Clinical findings and examination maneuvers, particularly the Müller manoeuvre, correlate with OSA severity.
• Accurate prediction of OSA presence and severity can enhance the cost-effectiveness of screening patients prior to polysomnography.