CPAP, BPAP & ASV

We are experienced with CPAP (Continuous Positive Airway Pressure), which is the primary treatment for sleep apnea. We have very high success rates in treating patients with sleep apnea. We do have some occasional surgical options that are good for patients with sleep apnea, but Dr Pearson assesses and deals with that on an individual basis.

  • Continuous positive airway pressure (CPAP) – This method, also used in obstructive sleep apnea, involves wearing a pressurized mask over your nose while you sleep. The mask is attached to a small pump that forces air through your airway to keep it from collapsing. CPAP may eliminate snoring and prevent sleep apnea. As with obstructive sleep apnea, it’s important that you use the device as directed.
  • Bilevel positive airway pressure (BPAP) – Unlike CPAP, which supplies steady, constant pressure to your upper airway as you breathe in and out, BPAP builds to a higher pressure when you inhale and decreases to a lower pressure when you exhale. The goal of this treatment is to assist the weak breathing pattern of central sleep apnea. Some BPAP devices can be set to automatically deliver a breath if the device detects you haven’t taken one after so many seconds.
  • ASV Therapy – Adaptive Servo-Ventilation (ASV) is an evolution from conventional positive airway pressure therapy and was specifically designed to treat central and complex sleep apnea, periodic breathing and Cheyne-Stokes respiration. It comes with tubing and a mask. During therapy, the ASV device monitors your breathing constantly throughout the night. It uses a set of specially designed calculations, known as algorithms, to ensure your breathing is stable. These algorithms take into consideration your breathing rate and the amount of air you inhale and exhale with each breath. When the ASV device detects any changes in either of these factors, it provides support to maintain your breathing at the normal level and avoid hyperventilation. This support continues through any period of hypopnea or apnea. Once your breathing returns to normal, the ASV device reduces its support, thereby avoiding any side effects associated with over-ventilation (i.e., worsening or new CSA/CSR, bad hemodynamic tolerance).The support provided by adaptive servo-ventilation therapy stabilizes your breathing pattern throughout the night and helps to control the levels of O2 and CO2 in your blood, reducing the amount of strain placed on your heart.