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[Hypertension during obstructive sleep apnea syndrome]
La Revue Du Praticien
|August 25, 2015
Summary
Hypertension is often linked to obstructive sleep apnea syndrome (OSAS). Treating OSAS with continuous positive airway pressure (CPAP) can significantly lower blood pressure, particularly in resistant hypertension cases.
Area of Science:
- Cardiology
- Sleep Medicine
- Nephrology
Context:
- Obstructive sleep apnea syndrome (OSAS) is a common but often overlooked cause of secondary hypertension.
- Hypertension in OSAS patients frequently presents as diastolic, nocturnal, and with a non-dipper profile.
- OSAS is highly prevalent in cases of resistant hypertension, necessitating systematic evaluation.
Purpose:
- To highlight the link between obstructive sleep apnea syndrome and hypertension.
- To explain the pathophysiological mechanisms connecting OSAS and HT, focusing on intermittent hypoxia and sympathetic activity.
- To discuss the diagnostic considerations and treatment implications of OSAS in hypertensive patients.
Summary:
- Hypertension related to OSAS is a secondary form of HT, often presenting with specific characteristics like diastolic and nocturnal patterns.
- The association between OSAS and hypertension is driven by mechanisms including intermittent hypoxia, leading to increased sympathetic activity.
- Diagnosis of OSAS is crucial in hypertensive patients, especially those with resistant hypertension. Treatment, including lifestyle changes and CPAP, can effectively reduce blood pressure.
Impact:
- Highlights the importance of diagnosing OSAS in hypertensive patients for effective management.
- Demonstrates that treating OSAS can lead to significant reductions in blood pressure, improving cardiovascular outcomes.
- Emphasizes the role of CPAP in managing resistant hypertension, especially when linked to OSAS.
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