Sleep apnea is a serious sleep-related breathing disorder in which breathing repeatedly stops and starts during sleep, causing frequent sleep interruptions and reduced oxygen supply to the body. Common symptoms include loud snoring, choking or gasping during sleep, morning headaches, poor concentration, and excessive daytime sleepiness. If not treated early, sleep apnea can lead to complications such as high blood pressure, heart disease, stroke, obesity, and diabetes. SP Medifort Hospital, trusted as one of the best hospitals for sleep apnea in South India, provides advanced sleep apnea diagnosis, including overnight sleep studies (polysomnography). With expert pulmonologists, ENT specialists, and sleep medicine doctors, the hospital offers the best sleep apnea treatment in South India, including CPAP therapy, BiPAP therapy, oral appliances, lifestyle management, and surgical treatment for sleep apnea, helping patients achieve better sleep and long-term health.

The main types of sleep apnea include the following:

• Obstructive Sleep Apnea (OSA): Obstructive sleep apnea is the most common type of sleep apnea and occurs when the throat muscles relax and narrow during sleep, blocking the flow of air into the lungs. This condition is often associated with loud snoring, breathing pauses, and excessive daytime sleepiness. OSA is a major cause of sleep-related breathing disorders and requires timely sleep apnea diagnosis and treatment.
• Central Sleep Apnea (CSA): Central sleep apnea develops when the brain fails to send proper signals to the muscles that control breathing. Unlike obstructive sleep apnea, CSA is related to problems in the brain’s respiratory control center and may occur in people with heart disease, stroke, or neurological disorders.
• Treatment-Emergent Central Sleep Apnea (Complex Sleep Apnea): Also known as complex sleep apnea syndrome, this condition occurs when obstructive sleep apnea diagnosed through a sleep study test (polysomnography) converts into central sleep apnea after starting sleep apnea therapy such as CPAP. This type requires specialized evaluation and advanced sleep apnea treatment by experienced sleep medicine specialists.

Sleep apnea occurs when breathing is repeatedly interrupted during sleep due to airway blockage or faulty breathing control. The causes vary depending on the type of sleep apnea.

Causes of Obstructive Sleep Apnea (OSA)

Obstructive sleep apnea is caused by physical blockage of the upper airway during sleep. Common causes include:

• Relaxation of throat muscles during sleep, which narrows or blocks the airway
• Obesity or excess body weight, leading to fat deposits around the neck and throat
• Enlarged tonsils or adenoids, especially in children
• Structural abnormalities of the airway, such as a small jaw, large tongue, or narrow throat
• Nasal obstruction, chronic sinusitis, or deviated nasal septum
• Smoking, which increases airway inflammation and fluid retention
• Alcohol consumption and sedative medications, which relax the airway muscles
• Sleeping on the back, allowing the tongue and soft tissues to collapse backward

Causes of Central Sleep Apnea (CSA)

Central sleep apnea occurs when the brain fails to send proper signals to the breathing muscles. Causes include:

• Brain disorders or neurological conditions
• Stroke or brain injury
• Heart failure and other cardiac conditions
• Use of opioid pain medications
• Diseases affecting the brainstem, which controls breathing

Causes of Complex (Treatment-Emergent) Sleep Apnea

• Occurs when obstructive sleep apnea converts to central sleep apnea after starting CPAP or other sleep apnea therapy
• Usually identified during a sleep study test (polysomnography)

Sleep apnea treatment focuses on restoring normal breathing during sleep, improving sleep quality, and preventing long-term health complications. The best treatment for sleep apnea depends on the type—obstructive sleep apnea (OSA), central sleep apnea (CSA), or complex sleep apnea—and its severity.

Lifestyle modification for sleep apnea: Mild obstructive sleep apnea can be managed with weight loss, healthy diet, regular exercise, avoiding alcohol and smoking, and positional therapy. These changes help reduce airway obstruction and are an important part of natural treatment for sleep apnea.

CPAP therapy for sleep apnea: CPAP (Continuous Positive Airway Pressure) therapy is the gold-standard and most effective sleep apnea treatment for moderate to severe OSA. CPAP machines deliver constant air pressure to keep the airway open throughout sleep.

BiPAP and APAP therapy: BiPAP (Bilevel Positive Airway Pressure) and APAP (Auto-Adjusting Positive Airway Pressure) are advanced treatments for sleep apnea used when CPAP is not tolerated or in cases of central sleep apnea and complex sleep apnea.

Oral appliance therapy for sleep apnea: Custom-made oral appliances help reposition the jaw or tongue to maintain airway patency and are effective for mild to moderate obstructive sleep apnea.

Surgical treatment for sleep apnea: Sleep apnea surgery may be recommended when non-surgical treatments fail. Surgical options correct anatomical airway obstruction, such as enlarged tonsils, nasal blockage, deviated septum, or jaw abnormalities.

Treatment for central sleep apnea: Management includes treating underlying neurological or cardiac conditions, reducing opioid medications, and using specialised devices such as Adaptive Servo-Ventilation (ASV).

Long-term sleep apnea management: Regular follow-ups, sleep studies, and therapy adjustments are essential for successful sleep apnea care and symptom control.