Sleep Diagnostics

Sleep fundamentally influences our metabolism, cardiovascular function and immune system. Sleep disorders are not just uncomfortable — they are also an independent risk factor for many diseases. In particular, obstructive sleep apnea (OSA) is associated with increased risk for type 2 diabetes, obesity and hypertension^[1,2]. For this reason, sleep diagnostics holds a high priority in our practice.

When is sleep diagnostics indicated?

A sleep medicine examination should be offered when the following symptoms are present:

• Sleep initiation and maintenance disorders lasting several weeks
• Excessive daytime somnolence and fatigue
• Snoring with observed breathing pauses or apneic episodes
• Morning headaches or dizziness
• Concentration and memory disturbances suspected to be sleep-related

It is particularly important to rule out sleep disorders when metabolic diseases (diabetes, overweight) or cardiovascular problems (hypertension, arrhythmias) are present simultaneously.

Diagnostic options

Ambulatory Polygraphy

Ambulatory polygraphy is a portable recording device that you can comfortably wear at home. Measurements include:

• Airflow and breathing effort
• Oxygen saturation (SpO2)
• Heart rate
• Snoring sounds and loudness
• Body position during sleep

AHI Assessment

The Apnea-Hypopnea Index (AHI) is calculated from the data — the number of breathing interruptions per hour. This enables precise classification and treatment planning:

• AHI < 5: No sleep apnea
• AHI 5-15: Mild OSA
• AHI 15-30: Moderate OSA
• AHI > 30: Severe OSA

Ambulatory Polysomnography

When a more differentiated sleep assessment is required — for example in cases of inconclusive polygraph findings, chronic insomnia or suspected periodic limb movements — I also offer ambulatory polysomnography with full sleep stage evaluation (EEG, EOG, EMG). This examination is available to private patients and self-pay and, in many cases, avoids the need for a sleep laboratory stay. Alternatively, referral to a specialized sleep center remains possible if needed.