Arrhythmias are considered a prominent phenomenon in pulmonary hypertension (PH) as the disease progresses. According primarily to retrospective studies with up to 24 hours of monitoring, supraventricular tachycardias (SVT) can be found in 8-35% of patients, with significant impact on survival.
Furthermore, a few prospective studies to date deploying short-term monitoring (10 minutes-24 hours) have revealed lower heart rate variability (HRV) in patients with pulmonary arterial hypertension (PAH).
In ASPIRE arrhythmias and heart rate variability is being assessed via long term monitoring.
In general there is a lack of evidence of the arrhythmic burden in PH. The present study is the first to apply continuous long-term cardiac monitoring in patients with PH to describe the prevalence of arrhythmias in PH by continuous long-term cardiac monitoring. Furthermore, the correlation between heart rate variability and risk assessment parameters including WHO functional class (FC), NT-proBNP, 6MWT, cardiac parameters and cardiac function will be studies.
A few prospective studies have demonstrated lower HRV in PH than in healthy individuals, however only based on short-term monitoring (20 minutes to 24 hour) and only in a few patients. In retrospective studies, a higher mortality in children with PAH and low HRV has been shown with 24 hour Holter monitoring. Consequently, there is a lack of evidence regarding right heart failure and the prognostic value of HRV.
Risk assessment in PH is essential in the selection of treatment in PH and for prognosis in the study ASPIRE the investigators will assess the use of heart rate variability in pulmonary hypertension.
In conclusion the ASPIRE study will:
The study specifically seeks to investigate following:
| Condition | Pulmonary Hypertension, Arrhythmias, Cardiac, Heart Rate Variability |
|---|---|
| Treatment | Loop recorder implantation |
| Clinical Study Identifier | NCT04554160 |
| Sponsor | Rigshospitalet, Denmark |
| Last Modified on | 3 June 2023 |
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