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Sleep disordered breathing is very common in patients with chronic heart failure with reported prevalence rates of 50-75%. Adaptive Servo-Ventilation (ASV) can be used to treat sleep apnea in these patients. This is an observational study to document changes in respiratory parameters in HF patients using ASV for a period of 12 months.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Chronic Heart Failure patients using ASV | Patients with chronic heart failure who are using or willing to use adaptive servo ventilation (ASV) therapy will be enrolled. Respiratory data will be collected from this group every 3 months over a 12 month period |
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| Measure | Description | Time Frame |
|---|---|---|
| Correlation of hypoxemia, as measured by overnight pulse oximetery, with worsening heart failure | Hypoxemia, as measured by pulse oximetery will be compared with heart failure status to measure if a correlation exists between hypoxemia and deterioration of heart failure | 12 months |
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Inclusion Criteria:
More than 18 years old Chronic heart failure (at least 12 weeks since diagnosis) according to the currently applicable guidelines NYHA Class III or IV at the time of inclusion with at least one hospitalization for heart failure in the last 12 months Moderate to severe sleep apnea (AHI ≥ 15/hour). Already using or willing to use ASV-therapy and able to tolerate the mask treatment
Exclusion Criteria:
Planned or scheduled heart valve interventions and/or CABG Untreated or therapy refractory Restless Leg Syndrome Patients for whom the use of positive airway pressure therapy may be contra-indicated because of symptomatic hypotension or significant intravascular volume depletion or pneumothorax or pneumomediastinum Pregnancy
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Chronic Heart Failure patients using adaptive servo ventilation
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| Name | Affiliation | Role |
|---|---|---|
| Olaf Oldenburg, MD | Ruhr University of Bochum | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sleep Laboratory, Ruhr University of Bochum | Bad Oeynhausen | North Rhine-Westphalia | D-32545 | Germany |
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