Obstructive Sleep Apnea Syndrome (OSAS) and Cardiovascular System

Area of Science:

• Cardiology
• Sleep Medicine
• Hypertension Research

Background:

• Obstructive Sleep Apnea (OSA) is increasingly recognized for its association with cardiovascular diseases.
• A significant link exists between OSA and arterial hypertension, particularly in resistant hypertension and non-dipping patterns.
• This relationship appears independent of confounders but can be influenced by factors like age and sex.

Purpose of the Study:

• To elucidate the pathophysiologic and clinical interactions between OSA and arterial hypertension.
• To optimize treatment strategies for patients with co-morbid OSA and hypertension.
• To identify key areas for future research, including gender differences and childhood sleep disorders.

Main Methods:

• Review of existing evidence on the relationship between OSA and cardiovascular diseases.
• Analysis of potential pathophysiologic mechanisms linking OSA and hypertension.
• Examination of bidirectional associations between OSA and cardiovascular conditions.

Main Results:

• Strong evidence supports the association between OSA and arterial hypertension, independent of confounders.
• Potential mechanisms include autonomic dysfunction, inflammation, endothelial dysfunction, and the renin-angiotensin-aldosterone system.
• A bidirectional link is observed between OSA and cardiovascular issues like heart failure, stroke, and arrhythmias.

Conclusions:

• Greater attention is required for identifying and treating sleep apnea in cardiovascular patients.
• Further investigation into gender-specific differences, childhood sleep disorders, and the impact of OSA treatment on cardiovascular risk is crucial.