Related Experiment Video
Updated: May 29, 2025
07:54
Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
19.6K
Community prevalence of positional obstructive sleep apnea.
Brett L Duce1,2, Antti E Kulkas3,4, Timo T Leppänen4,5,6
1Sleep Disorders Centre, Department of Respiratory & Sleep Medicine, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia.
Summary
Positional obstructive sleep apnea (POSA) is more common than nonpositional OSA in the general population. The supine predominant OSA subtype (spOSA) is more prevalent and linked to worse health outcomes than supine isolated OSA (siOSA).
Area of Science:
- Sleep Medicine
- Respiratory Medicine
- Cardiology
Background:
- Positional obstructive sleep apnea (POSA) prevalence and subtypes require further community-based research.
- Understanding the clinical characteristics of supine predominant OSA (spOSA) and supine isolated OSA (siOSA) is crucial.
Purpose of the Study:
- To investigate the prevalence of POSA compared to nonpositional OSA in a community sample.
- To explore the clinical features and subtypes of POSA, specifically spOSA and siOSA.
Main Methods:
- Cross-sectional analysis of 1,870 participants from the Sleep Heart Health Study.
- Obstructive Sleep Apnea (OSA) defined by apnea-hypopnea index (AHI) ≥ 5 events/h.
- POSA classified by supine AHI ≥ 2x nonsupine AHI; others classified as nonpositional OSA.
Main Results:
- POSA was more prevalent (62%) than nonpositional OSA (38%), with higher supine and total AHI.
- Participants with POSA were older, less obese, and had higher systolic blood pressure.
- Supine predominant OSA (spOSA) was more common than supine isolated OSA (siOSA) and associated with worse health outcomes, including hypertension and diabetes.
Conclusions:
- POSA is more prevalent than nonpositional OSA in the Sleep Heart Health Study population.
- The spOSA subtype is more common and associated with poorer health consequences compared to siOSA.
Related Concept Videos
01:21Sleep Apnea
123
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
The condition is more prevalent among...
123
01:17Other Pulmonary Disorders
799
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
799
01:22Chronic Obstructive Pulmonary Disease
1.1K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
1.1K
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
2.5K
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.7K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
2.7K
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
2.8K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
2.8K