Collection: ASV DEVICES

Understanding ASV Therapy: Advanced, Adaptive Breathing Support

When standard CPAP or auto-adjusting APAP therapies are not enough to manage complex sleep-disordered breathing, sleep specialists turn to Adaptive Servo-Ventilation (ASV). ASV is one of the most sophisticated forms of non-invasive positive airway pressure therapy available today.

While a standard CPAP machine provides a fixed level of pressure to keep a physically blocked airway open, an ASV device continuously maps and monitors your unique breathing pattern in real time. By analyzing your normal breathing volume and rate, the machine calculates a personalized "target ventilation." If your breathing fluctuates, slows down, or stops entirely, the ASV machine rapidly adapts on a breath-by-breath basis, instantly delivering the precise pressure support needed to stabilize your respiration. Once your natural breathing pattern returns, the machine smoothly steps back.

Who is ASV Therapy For?

ASV therapy is a highly specialized treatment. It is primarily prescribed by respiratory and sleep physicians to treat complex cases where the brain's respiratory drive is unstable, including:

• Central Sleep Apnea (CSA): A condition where the airway is open, but the brain temporarily fails to signal the muscles to take a breath.
• Complex Sleep Apnea: Also known as Treatment-Emergent Central Sleep Apnea, this occurs when a patient being treated for standard obstructive sleep apnea begins developing central apneas as a reaction to standard CPAP pressure.
• Cheyne-Stokes Respiration (CSR): A specific, periodic breathing pattern characterized by a gradual waxing and waning of breathing depth, often associated with neurological or specific medical conditions.
• Opioid-Induced Sleep Apnea: Chronic use of certain pain medications can suppress the central nervous system's respiratory drive, leading to central apneas that respond well to ASV technology.

At Air Liquide Healthcare, we offer premium, clinically validated ASV devices, such as the Löwenstein Medical PrismaCR and ResMed AirCurve™ ASV. These systems are equipped with advanced algorithms, integrated climate control, and digital connectivity to ensure precise care monitoring by your medical team.

Compliance & Critical Safety Disclaimers:

• Strict Contraindication (Heart Failure Warning): In accordance with international clinical safety guidelines and Therapeutic Goods Administration (TGA) safety data, ASV therapy is strictly contraindicated in patients with chronic, symptomatic heart failure (NYHA class II-IV) with a reduced left ventricular ejection fraction (LVEF of 45% or less). A thorough cardiovascular assessment is required before initiating ASV therapy.
• Prescription Mandatory: ASV devices are highly advanced medical instruments. They require a valid clinical prescription and must be set up under the direct supervision of a qualified sleep specialist or respiratory physician.
• Directions for Use: Always read the label. Follow the exact instructions for use provided by the manufacturer and your clinical support team. This educational summary does not replace professional medical advice. If you have questions about whether ASV is appropriate for your condition, please consult your specialist.