Central Sleep Apnea vs. Obstructive Sleep Apnea: Distinguishing Between Types
Millions of people rely on a continuous positive airway pressure (CPAP) machine to sleep safely through the night. If you are one of them,...
Posted on October 21, 2026
SleepRoughly half of patients prescribed CPAP are no longer using it consistently a year later, and many stop within the first few weeks. That does not mean the apnea went away. If the mask has landed in a closet drawer, Providence ENT can discuss real CPAP alternatives for sleep apnea treatment in Glen Mills, ranging from a custom oral appliance to nasal surgery and implantable nerve stimulation.
CPAP works beautifully when it is worn. The problem is tolerance, and the reasons patients cite are consistent across sleep clinics:
Insurance compliance rules add pressure of their own, since most plans require at least four hours a night on 70 percent of nights over a 30-day window to keep covering supplies.
Abandoning therapy is not a neutral decision. Untreated obstructive sleep apnea is linked to hypertension that resists medication, atrial fibrillation, type 2 diabetes, stroke, and a measurably higher risk of drowsy driving crashes. The National Heart, Lung, and Blood Institute notes that repeated nighttime oxygen drops strain the cardiovascular system over years, not days. For patients who cannot use CPAP, the goal is to find a therapy they will actually use every night, even if it reduces the apnea-hypopnea index (AHI) somewhat less than a perfectly worn mask would.
A mandibular advancement device (MAD) looks like a two-piece sports guard. It clips over the upper and lower teeth and holds the lower jaw a few millimeters forward, which pulls the tongue base and soft palate away from the back of the throat. Most devices are titratable, so the jaw position is advanced in small increments over four to eight weeks until snoring and apneas settle.
Expect a 50 to 60 percent reduction in AHI for suitable candidates, with the best results in patients under a BMI of about 32. Side effects are usually mild and include morning jaw soreness, extra salivation and small bite changes over several years, which is why annual dental follow up matters. Over the counter boil and bite guards are a poor substitute; they rarely hold jaw position and often loosen teeth.
Surgical treatment for obstructive sleep apnea usually starts with the nose, because airflow resistance at the nasal valve raises the pressure everything downstream has to fight. A septoplasty straightens a deviated septum, and inferior turbinate reduction shrinks chronically swollen tissue; both are typically outpatient procedures with three to seven days of congestion during healing.
Nasal surgery alone rarely cures moderate or severe apnea. What it reliably does is lower the CPAP pressure needed, cut mask leak, and make an oral appliance or nerve stimulator work better by letting patients breathe through the nose with the mouth closed. Several published series show patients who could not tolerate CPAP returning to successful use after their nasal obstruction was corrected.
When the collapse happens at the level of the soft palate or tonsils, targeted throat surgery can widen the airway.
Options an ENT may discuss include:
Recovery from palatal surgery involves 10 to 14 days of significant sore throat in most adults. Success is defined in the literature as at least a 50 percent drop in AHI to below 20, and careful patient selection based on where the airway actually collapses drives most of the difference between good and disappointing outcomes.
Hypoglossal nerve stimulation is the newest of the widely available non-mask options. A small pulse generator is implanted below the collarbone with a lead to the hypoglossal nerve, which controls tongue protrusion. The device senses each breath and delivers a gentle pulse that stiffens and advances the tongue as you inhale, keeping the airway from collapsing. Patients turn it on with a handheld remote at bedtime and off in the morning.
The key STAR trial published in the New England Journal of Medicine reported a 68 percent median reduction in AHI at 12 months, and long term follow up has shown durable results with adherence generally exceeding that of CPAP. Surgery takes about two hours, most patients go home the same day, and the device is activated roughly a month later.
Documented moderate to severe OSA, generally an AHI between 15 and 100 events per hour with predominantly obstructive events.
DISE is a short procedure under light sedation that lets the surgeon watch the airway collapse in real time and map exactly which levels are involved. That map often changes the recommendation, steering one patient toward tonsillectomy and another toward an implant.
Few patients get a single procedure and nothing else. A common sequence is nasal surgery to restore nasal breathing, then an oral appliance or stimulator as the primary therapy, with weight management and positional training alongside. A repeat sleep study three to six months after treatment confirms whether the AHI actually fell, since symptom improvement alone can be misleading.
Bring your sleep study results and your CPAP download to a consultation at Providence ENT, and we will examine the nose, palate and tongue base to identify where your airway is actually failing. From there, we can lay out which alternatives fit your anatomy, your AHI and your insurance coverage. Call to schedule an evaluation.
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