Obstructive Sleep Apnea (OSA)
Why in news?
Recent studies highlight a strong link between untreated Obstructive Sleep Apnea (OSA) and increased risk of Parkinson's disease, with early continuous positive airway pressure (CPAP) treatment potentially reducing this risk.
Parkinson's Disease Connection
- A large veteran study found that individuals with untreated OSA face a higher likelihood of developing Parkinson's,
- But consistent use of CPAP therapy mitigates this association.
- Multiple reports from late November 2025 confirm this trend, emphasizing early intervention's protective effects.
About Obstructive Sleep Apnea
- Obstructive Sleep Apnea (OSA) is a sleep disorder involving repeated episodes of complete or partial upper airway collapse during sleep.
- This causes airflow reduction or cessation despite ongoing breathing effort, leading to oxygen desaturation and sleep disruption.
Causes and Mechanism
- OSA occurs due to relaxation and collapse of throat muscles during sleep, blocking the airway.
- Anatomical factors (e.g., narrow airway, obesity), reduced muscle tone, and changes in airway pressure dynamics contribute to airway obstruction.
Symptoms and Health Risks
- Loud, habitual snoring with periods of silence followed by gasps or choking sounds.
- Excessive daytime sleepiness, morning headaches, restless sleep, frequent awakenings.
- Cognitive difficulties, mood changes, irritability, and concentration problems can occur.
- Increases risk for hypertension, heart disease, stroke, arrhythmias, and metabolic disorders.
Treatment
- Continuous Positive Airway Pressure (CPAP) therapy is the most common and effective treatment.
- Lifestyle changes including weight loss, avoiding alcohol, and positional therapy help.
- Oral appliances and surgery may be options for some patients depending on severity and anatomy.
Around 104 million Indians, or 11% of the population, may suffer from OSA, often undiagnosed due to cultural views on snoring. Rural prevalence stands at about 3.7%, underscoring the need for accessible screening like Level III studies by health workers. Climate change could worsen OSA severity amid rising temperatures.
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