CPAP vs surgery: which sleep apnoea treatment is right for me?
For those newly diagnosed with obstructive sleep apnoea, one of the most common questions is whether treatment will involve a CPAP machine, surgery, or something else entirely. The honest answer is that it depends: not on a single factor, but on the interplay of severity, anatomy, lifestyle and personal preference. Understanding where each option works best, and where it falls short, makes for a far more productive first consultation.
Understanding the options
The treatment of obstructive sleep apnoea has advanced considerably in recent years, and most patients now have access to a range of effective options. These broadly fall into three categories: device-based therapies, surgical interventions, and lifestyle modification. In practice, the best outcomes often involve a combination of approaches. An overview of our snoring and sleep wellness services sets out the full range available at Hillser Clinic.
CPAP: the established standard
CPAP (continuous positive airway pressure) remains the most widely prescribed treatment for moderate to severe OSA worldwide. The device delivers a carefully calibrated flow of pressurised air through a mask worn during sleep, preventing the airway from collapsing. For those who use it consistently, the results are often transformative: daytime sleepiness resolves, sleep quality improves markedly, and the cardiovascular risks associated with untreated apnoea are significantly reduced.
The principal challenge with CPAP is adherence. Some patients find the mask uncomfortable, particularly in the early weeks, and the presence of the device can feel intrusive. However, modern CPAP machines are considerably smaller, quieter and more sophisticated than their predecessors, and with appropriate support, including mask fitting, pressure optimisation and follow-up, most patients who persevere with the initial adjustment period find that CPAP becomes simply part of their nightly routine.
CPAP is a treatment rather than a cure. It controls the condition while in use but does not address the underlying anatomy. This is an important distinction: stopping CPAP typically means the apnoeas return.
Mandibular advancement devices
For patients with mild to moderate OSA, or those who cannot tolerate CPAP, a mandibular advancement device (MAD) offers a well-evidenced alternative. These custom-fitted dental appliances hold the lower jaw in a slightly forward position during sleep, preventing the tongue and soft tissues from falling back to obstruct the airway.
MADs are less effective than CPAP in severe disease, but they are compact, quiet and require no power source, making them particularly popular with those who travel frequently. They are most suitable for patients whose OSA is positional or anatomically driven, and who are willing to have them fitted and adjusted by a dental specialist.
When is surgery appropriate?
Surgery for sleep apnoea is not a universal solution, but for the right patient it can offer long-lasting benefit, and in some cases, effectively cure the condition.
The key to successful surgical treatment lies in accurate identification of the site or sites of obstruction. This is precisely where drug-induced sleep endoscopy (DISE) is invaluable. By administering mild sedation to reproduce the sleep state and using a fine endoscope to observe the airway directly, it is possible to determine whether collapse is occurring at the level of the nose, the soft palate, the tongue base or elsewhere, and to plan surgical intervention accordingly.
Common surgical approaches include:
Nasal surgery: correcting a deviated septum, reducing enlarged turbinates or addressing nasal polyps to improve nasal airflow. This does not directly treat OSA at the throat level, but improving nasal breathing improves CPAP tolerance and can reduce the severity of apnoea in some patients.
Palatal surgery: procedures to tighten or reposition the soft palate and reduce its tendency to collapse. These include minimally invasive techniques performed under local anaesthetic, through to more involved surgical reconstruction under general anaesthetic, depending on the degree and pattern of palatal collapse.
Tongue base procedures: addressing collapse at the level of the tongue base using techniques including coblation-assisted reduction or more complex surgical repositioning, typically guided by DISE findings.
Multilevel surgery: where obstruction occurs at more than one site, a staged or combined surgical approach may be recommended.
Surgery is generally most effective in patients with specific, identifiable anatomical contributors to their apnoea, without severe obesity, and where non-surgical treatments have either failed or are not tolerated.
Lifestyle measures: underestimated and underused
It would be a disservice to patients to discuss CPAP and surgery without acknowledging the significant impact that lifestyle changes can have. Weight loss is the single most effective lifestyle intervention for OSA: even a modest reduction in body weight can substantially reduce apnoea severity and, in some cases, resolve the condition entirely. Reducing alcohol intake (which relaxes the muscles of the throat), improving sleep position, and treating nasal congestion are all interventions that should be considered alongside, or before, more invasive treatment.
When treatments are combined
It is worth noting that CPAP and surgery are not mutually exclusive. A significant number of patients use CPAP as an initial treatment while they undergo further assessment, await surgery, or work towards weight loss targets that may affect their surgical suitability. In some cases, nasal surgery is performed specifically to improve CPAP tolerance, allowing patients who struggled with the device to use it comfortably and effectively.
Similarly, lifestyle changes are rarely a standalone treatment, but they can substantially reduce the burden of other interventions. A patient who loses weight may find that their CPAP pressure requirement drops, their surgical risk improves, or that a condition previously classified as severe becomes moderate and amenable to a wider range of options.
The framing of CPAP versus surgery can therefore be misleading. For many patients, the more useful question is not which treatment to choose, but how to build a management plan that is sustainable, responsive to change, and adapted to their individual circumstances over time.
How is the decision made?
There is no formula that determines the right treatment for an individual patient. The decision is a collaborative one, informed by the results of sleep studies and DISE, the patient's anatomy, their lifestyle, their tolerance for various interventions, and their goals.
At Hillser Clinic, our approach is always to complete a thorough assessment before recommending any treatment. We see our role not as advocates for a particular therapy, but as guides who help each patient understand their condition clearly and make an informed choice about how they wish to address it.
Frequently asked questions about sleep apnoea treatment
Is CPAP the best treatment for sleep apnoea?
CPAP is the most effective treatment for moderate to severe obstructive sleep apnoea in terms of symptom control, and it is the most widely prescribed therapy worldwide. However, it is a management tool rather than a cure, and its effectiveness depends on consistent use. For patients with milder disease, or those who cannot tolerate CPAP, other options including mandibular advancement devices and surgery can achieve excellent results.
What is the success rate of surgery for sleep apnoea?
Success rates vary considerably depending on the type of surgery, the site of obstruction and the severity of disease. Surgery is most effective when the anatomical cause of airway collapse has been precisely identified, typically through drug-induced sleep endoscopy. For well-selected patients, surgical outcomes can be highly effective and, in some cases, curative.
How do I know if I need CPAP or surgery?
The decision is based on a combination of factors: the results of your sleep study, the anatomy identified during clinical examination and DISE, your tolerance for the available treatments, and your personal preferences. There is no single right answer, and the best decisions are made following a thorough assessment rather than on the basis of the diagnosis alone.
Can I try CPAP and then switch to surgery?
Yes. Many patients use CPAP initially while completing further investigations or preparing for surgery. CPAP provides effective symptom control in the interim and does not affect surgical options. Equally, patients who have had surgery and require additional support may return to CPAP or a mandibular advancement device if residual apnoea remains.
What is drug-induced sleep endoscopy and why does it matter?
Drug-induced sleep endoscopy is a diagnostic procedure in which mild sedation is used to reproduce the sleep state, allowing a specialist to observe the airway directly and identify precisely where collapse is occurring. It is invaluable in planning surgical treatment, ensuring that any intervention targets the actual site of obstruction rather than a presumed one. Without this information, surgical outcomes are considerably less predictable.
Are there risks to leaving sleep apnoea untreated while deciding on treatment?
Untreated obstructive sleep apnoea carries real long-term health risks, including elevated blood pressure, increased cardiovascular risk and impaired metabolic function. Daytime sleepiness also carries practical risks, particularly for drivers. While taking time to make an informed treatment decision is entirely reasonable, it is important not to leave a confirmed diagnosis unaddressed indefinitely.
Book a consultation at Hillser Clinic
If you have been diagnosed with sleep apnoea, or suspect you may have it, the right starting point is a thorough specialist assessment. We offer expert evaluation of sleep-disordered breathing at Hillser Clinic, including home sleep studies, drug-induced sleep endoscopy and a full range of treatment options tailored to your individual circumstances. To arrange a consultation, please contact our team.