The Connection Between Sleep Apnoea and Cardiovascular Disease

Sleep Apnoea and Cardiovascular Disease: Understanding the Heart Health Connection

Sleep apnoea may quietly affect more than just sleep quality. According to an ET Healthworld report citing an AIIMS study, nearly 104 million Indians, around 11% of the population, may live with Obstructive Sleep Apnoea.

Sleep apnoea and cardiovascular disease are closely connected because repeated breathing interruptions lower oxygen levels and put extra strain on the heart. Over time, this may increase blood pressure, disturb heart rhythm, and raise risks of serious heart-related complications such as stroke or heart attack.

How Is Sleep Apnoea and Cardiovascular Disease Related?

Repeated oxygen drops during sleep apnoea tighten blood vessels and gradually increase blood pressure. High blood pressure negatively affects heart function over time.

Wondering what other sleep apnoea cardiovascular risks may affect long-term health?

Heart Attack Risk: Sleep apnoea may strain blood vessels and increase plaque buildup, which gradually raises heart attack risks.
Irregular Heartbeats: Low oxygen levels and disturbed sleep may affect heart rhythm and increase the risk of atrial fibrillation.
Heart Failure: Untreated sleep apnoea may worsen heart function by increasing pressure and making heart pumping more difficult.
Stroke Risk: High blood pressure, blood clots, and irregular heartbeat may significantly increase stroke risk over time.
Blood Vessel Damage: Repeated oxygen reduction may damage blood vessels, which causes inflammation and affects healthy circulation gradually.
Stress Hormone Release: Sleep apnoea activates stress hormones, which raise heart rate, blood pressure, and long-term cardiovascular strain.

What Are the Types of Sleep Apnoea?

Sleep apnoea mainly has 2 forms and depends on the reason behind breathing interruptions during sleep.

Obstructive Sleep Apnoea (OSA)

The most common type is caused by blocked upper airways during sleep because of relaxed throat muscles. The following factors may increase the chances of developing OSA.

Obesity, large tonsils, or tongue size may narrow airways and affect breathing.
Ageing may increase fatty tissue around the neck and raise the risk of blockage.
Smoking and alcohol may affect breathing by increasing airway inflammation or muscle relaxation.
Family history or hormonal conditions may increase the risk of obstructive sleep apnoea.

Central Sleep Apnoea (CSA)

A less common type where the brain temporarily fails to send proper breathing signals. Several health and lifestyle factors may raise the risk of CSA.

Heart failure, stroke, or nerve-related conditions may increase central sleep apnoea risks.
Long-term opioid medicine use may affect how the brain controls normal breathing.
Smoking, alcohol, ageing, or family history may increase breathing-related sleep difficulties.
Premature birth may sometimes increase the risk of breathing problems during sleep.

How Is Sleep Apnoea Diagnosed?

Loud snoring, breathing pauses during sleep, gasping, morning headaches, daytime tiredness, poor concentration, or irritability may indicate sleep apnoea.

To minimise sleep apnoea heart disease risk, timely diagnosis and medical evaluation become essential.

Sleep Study Test: Doctors may recommend polysomnography to monitor breathing, oxygen levels, heart rate, and sleep patterns.
Home Sleep Testing: A simplified home test may track breathing, oxygen levels, heart rate, and sleeping patterns.
Additional Tests: Doctors may also suggest oximetry, blood tests, or specialist consultation for further evaluation.

How Can Sleep Apnoea Be Treated?

Early treatment becomes important because sleep apnoea cardiovascular disease risks may gradually increase without proper care. Timely treatment may improve breathing, support better sleep quality, and stabilise heart health.

Lifestyle Changes: Weight control, regular exercise, side sleeping, and avoiding smoking or alcohol may improve symptoms.
CPAP Therapy: CPAP machines provide steady airflow during sleep and help keep airways open throughout the night.
Oral Devices: Special mouth guards may reposition the jaw slightly forward and reduce airway blockage during sleep.
Better Sleep Habits: Reducing caffeine, limiting screens, and following calming bedtime routines may support healthier sleep patterns.
Surgery Option: Doctors may sometimes recommend surgery to correct nasal or airway blockage in severe cases.

Final Word

Sleep apnoea and cardiovascular disease may become more manageable with timely care and evolving treatment options. According to NDTV, recent developments show a promising oral medicine for sleep apnoea that reportedly reduced breathing pauses by nearly 47%.

Reader information: This article is intended for informational and educational purposes only and should not be considered medical advice, diagnosis, or treatment. The information provided is based on publicly available medical sources and current evidence at the time of writing. Sleep apnoea and cardiovascular conditions can vary significantly between individuals. Always consult a qualified healthcare professional for an accurate diagnosis, personalized treatment recommendations, and guidance regarding your specific health concerns. Do not ignore professional medical advice or delay seeking treatment based on information contained in this article.

FAQ's

1. Can sleep apnoea be prevented naturally?

Certain lifestyle changes may help reduce sleep apnoea risks. Healthy eating, weight management, quitting smoking, and limiting alcohol support better breathing during sleep.

2. What complications can untreated sleep apnoea cause?

Sleep apnoea and cardiovascular diseases are closely related. Moreover, untreated sleep apnoea also increases fatigue, mood swings, diabetes, metabolic disorders, and more.