Objective target of the registry is to investigate the prevalence of SDB as well as the clinical characteristics of patients with and without SDB as well as the predominant type of sdb.
For this purpose data from patients suffering from chronic, symptomatic heart failure with impaired left ventricular ejection fraction will be collected prospectively.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patients must be over 18
* Chronic heart failure (at least 12 weeks since diagnosis) according to the current applicable guidelines
* Left ventricular systolic dysfunction (LVEF ≤ 45% by imaging method such as echocardiography, radionuclide angiography, left ventriculography, or cardiac magnetic resonance imaging) documented less than 12 weeks
* NYHA class III or IV at the time of inclusion or NYHA class II with at least one hospitalisation for HF in the last 24 months
* Patient is able to fully understand study information and signed informed consent
Exclusion Criteria:
* Life expectancy \< 1 year for diseases unrelated to chronic HF
* Cardiac surgery, Percutaneous coronary intervention (PCI), Myocardial Infarction (MI) or unstable angina within 6 months
* CRT-implantation (either CRT-D or CRT-P) scheduled or within 6 months
* Transient ischemic attack (TIA) or Stroke within 3 months
* Hemodynamically significant uncorrected primary valvular heart disease, obstructive or regurgitant, or any valvular disease expected to lead to surgery
* Acute myocarditis/pericarditis within 6 months
* Current CPAP or bilevel therapy
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Prevalence of SDB in Chronic HF Patients
Timeframe: 1 night: Patients fulfilling the inclusion and exclusion criteria were examined for sleep-disordered breathing during 1 night in a sleep facility