Sleep Apnea,Obstructive

ABC

Editorial

Correlation between Obstructive Sleep Apnea and Left Ventricular Diastolic Function Assessed by Echocardiography

Obstructive sleeP apnea (OSA) is a disease characterized by recurrent upper airway obstruction during sleeP , resulting from the repetitive collapse of these pathways, resulting in hypoxia and sleeP fragmentation. It is a very common disorder, being more common in men, but it can also affect women and children. Its prevalence has been estimated at approximately 14% among men and 5% among women and OSA has been defined in these studies as the presence of an apnea-hypopnea index > 5 events per hour of sleeP , associated with 4% of oxygen desaturation.

OSA is associated with a significant increase in sympathetic activity during sleeP , influencing heart rate and blood pressure. The increase in the sympathetic activity is induced by a number of mechanisms, including chemoreflex stimulation by hypoxia and hypercapnia, baroreflex, endothelial dysfunction, and venous return and cardiac output alterations.

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IJCS

Brief Communication

Risk Correlation between Obstructive Sleep Apnea and Heart Failure in Primary Care

Adson Renato Leite et al. Erica de Abreu Macedo Antonio José Lagoeiro Jorge Maria Luiza Garcia Rosa

Introduction

Obstructive sleep apnea syndrome (OSAS), a chronic, progressive disease, with high mortality and morbidity, which has been associated with cardiovascular diseases, including heart failure (HF).

The pathophysiological changes related to OSAS and its contribution to cardiovascular risk are consequences of increased sympathetic activity, increased oxidative stress, pro-inflammatory changes and endothelial dysfunction.

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Correlation between Obstructive Sleep Apnea and Left Ventricular Diastolic Function Assessed by Echocardiography

Risk Correlation between Obstructive Sleep Apnea and Heart Failure in Primary Care

Introduction

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Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)