Inspire therapy is an implantable treatment for obstructive sleep apnea (OSA) designed for those who can’t tolerate CPAP. OSA causes repeated breathing interruptions, leading to poor sleep, fatigue, and health risks.

CPAP is the first-line treatment, but not everyone can use it. Inspire implant may be an option, but eligibility depends on a detailed evaluation. The Insomnia and Sleep Institute of Arizona offers expert assessments to determine if Inspire is right for you.

Who Qualifies for Inspire® Therapy?

Inspire therapy is a surgical alternative for those who cannot tolerate other treatments and meet strict medical guidelines. Determining eligibility requires a full sleep study, airway evaluation, and medical history review.

BMI and AHI Requirements

  • Apnea-Hypopnea Index (AHI): Inspire is FDA-approved for patients with an AHI between 15 and 100.
  • Body Mass Index (BMI): Inspire therapy is most effective in patients with a BMI of 40 or lower.
    • BMI above 40: Not eligible, as excess weight affects airway stability and implant effectiveness.

CPAP Intolerance

Patients must have tried and failed CPAP therapy before qualifying for Inspire. Common CPAP issues include:

  • Inability to adjust to the mask.
  • Consistent discomfort despite different mask styles and settings.
  • Pressure intolerance causing breathing difficulties.

If CPAP is ineffective or causes intolerable side effects, Inspire may be considered.

Airway Structure and Medical History

A drug-induced sleep endoscopy (DISE) is required to determine if Inspire will be effective. This camera-guided evaluation under anesthesia helps doctors assess:

  • Tongue-based airway collapse: Ideal candidates have a tongue that blocks the airway during sleep.
  • Soft palate or lateral wall collapse: If the airway closes completely at the soft palate, Inspire may not be effective.
  • Other anatomical issues: Enlarged tonsils, nasal blockages, or weak airway muscles may require different treatment.

Who is NOT a Candidate?

  • Patients with central sleep apnea (CSA).
  • Severe neuromuscular disorders affecting breathing.
  • Significant obesity (BMI over 40).
  • Pregnant

How Does the Inspire Evaluation Work?

A comprehensive assessment ensures Inspire is the right option. The process includes a medical review, sleep study, and airway exam.

Confirm Sleep Apnea Diagnosis

A recent sleep study (within the last two years) is required. This helps determine OSA severity, CPAP intolerance, and AHI levels. A new study will be conducted if a patient does not have a recent study.

Drug-Induced Sleep Endoscopy (DISE) – Camera Evaluation of Airway

A Drug-Induced Sleep Endoscopy (DISE) is a crucial test to evaluate how the airway collapses during sleep. This procedure helps determine if Inspire therapy will effectively prevent airway obstruction or if another treatment may be more suitable.

How DISE Works

Patients undergo light anesthesia. A thin, flexible camera is inserted through the nose to examine the throat and airway structures in real time. Doctors examine how the airway behaves during sleep, focusing on whether the tongue, soft palate, or other structures contribute to obstruction.

Why DISE Matters for Inspire Therapy

  • Identifies if tongue collapse is the primary issue—the key factor for Inspire to work.
  • Rules out complete soft palate collapse or multiple obstruction points, which may reduce Inspire’s effectiveness.
  • Detects other airway abnormalities, such as lateral wall collapse or epiglottis involvement, that may require alternative treatments.

This 20-minute procedure is quick, safe, and well-tolerated. Most patients experience no discomfort afterward, with only mild throat soreness in some cases. A thorough DISE evaluation ensures that Inspire therapy is the right fit, improving treatment success and long-term sleep quality.

Insurance Pre-Approval & Final Consultation

Most major insurance providers cover Inspire therapy. The approval process involves submitting medical records and sleep study results. Once approved, the patient meets with an ENT specialist to schedule surgery.

How Inspire® Therapy Works

Inspire therapy is an implanted device that treats obstructive sleep apnea (OSA) without requiring a CPAP mask or forced air. Instead of using continuous air pressure, it stimulates the airway muscles to keep the throat open and prevent obstruction during sleep.

Each night, the patient turns on Inspire using a handheld remote before sleep. Once activated, the system works automatically throughout the night. When the breathing sensor detects an inhalation, it sends a signal to the pulse generator, which then delivers an impulse to the hypoglossal nerve. This stimulation causes two key tongue muscles to contract, moving the base of the tongue and soft palate forward. This prevents airway collapse and ensures smooth, uninterrupted breathing during sleep.

The Inspire implant functions proactively rather than reactively, meaning it doesn’t wait for an apnea event to occur. Instead, it delivers stimulation in sync with each breath—typically four seconds on, one second off—to keep the airway open before obstruction can happen.

How It Works During Sleep

The Inspire system has three key components, each carefully placed in the body to ensure proper function:

  • Pulse Generator (Implant): Positioned under the pectoralis major muscle in the right chest, between the second and third ribs. This small device powers the system and delivers electrical signals to the nerve.
  • Breathing Sensor Lead: Located behind the pulse generator, against the superficial rib muscle. It monitors natural breathing patterns and detects inhalation in real-time.
  • Stimulation Lead: Wrapped around a specific portion of the hypoglossal nerve in the right anterior neck. It delivers mild electrical pulses that activate muscles controlling tongue movement.

Effectiveness and Success Rates

  • 94% of physicians observed significant improvement in patients after Inspire implantation.
  • 94% of patients said they would choose Inspire again based on their experience.
  • 96% of patients would recommend Inspire therapy to family and friends.
  • 94% of patients reported overall satisfaction with their treatment (1).

Daily Use and Adjustments

  • Remote control activation.
  • No masks, no hoses, and no forced air.
  • Minimal maintenance, with battery replacement every 10+ years.

Recovery Timeline

Mild swelling and bruising may occur in the first 48 hours, but pain is easily managed with over-the-counter medication. Within a week, most patients can resume daily activities while avoiding heavy lifting or intense exercise. By four weeks, Inspire is fully healed and ready for activation.

Activation and Adjustments

Inspire stays off for the first month to allow proper healing. During the four-week follow-up, the device is turned on for the first time, and stimulation levels are adjusted for comfort. Patients learn how to use the remote to activate Inspire before sleep.

Post-Surgery Follow-Ups

A follow-up sleep study ensures Inspire is functioning correctly and effectively treating sleep apnea. Doctors fine-tune the stimulation settings for better results based on patient feedback. Most patients experience noticeable improvements within weeks.

Find Out If Inspire® OSA Implant Is Right for You

Inspire provides another way to treat sleep apnea without masks or forced air. Dr. Ruchir P. Patel, a leading sleep medicine specialist, has helped countless patients regain control over their sleep with advanced treatments like Inspire.

The Insomnia and Sleep Institute of Arizona has three offices in Gilbert, Scottsdale, and Phoenix, making expert sleep care more accessible. Patients receive expert evaluation, precision treatment planning, and long-term follow-up to ensure the best results.

Better sleep starts with the right team. Schedule a consultation today and see if Inspire is right for you.


References

  1. Roy, S. (2019, May 28). Therapy Update: Implanted Neurostimulators for Sleep Apnea. Sleep Review. https://sleepreviewmag.com/sleep-treatments/therapy-devices/neurostimulators/neurostimulators-sleep-apnea/

Disclaimer: The information provided in this blog post is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a licensed healthcare provider for recommendations specific to your individual health needs.