ArticleScientific reports2020
Evaluation of right ventricular performance and impact of continuous positive airway pressure therapy in patients with obstructive sleep apnea living at high altitude.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.
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Who cites it
10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 16 citations in OpenAlex.
- Impact of positive airway pressure therapy on pulmonary arterial pressures in obstructive sleep apnoea or obesity hypoventilation syndrome: a systematic review and meta-analysis.The European respiratory journal · 2026Pooled it
- Obstructive sleep apnea and right ventricular function: A meta-analysis of speckle tracking echocardiographic studies.Journal of clinical hypertension (Greenwich, Conn.) · 2022Pooled it
- The impact of continuous positive airway pressure on cardiac mechanics: Findings from a meta-analysis of echocardiographic studies.Journal of clinical hypertension (Greenwich, Conn.) · 2022Pooled it
- Emergence of central sleep apnea at high altitude in patients with mild obstructive sleep apnea: a case report.Journal of medical case reports · 2026Article
- Acute sleep deprivation: impairment of biventricular function assesed by speckle tracking echocardiography in healthy subjects.Sleep & breathing = Schlaf & Atmung · 2023Article
- Effect of Continuous Positive Airway Pressure Therapy on Pro-Brain Natriuretic Peptide, C-Reactive Protein, Homocysteine, and Cardiac Markers in Patients with Obstructive Sleep Apnea.Thoracic research and practice · 2023Article
- The role of 3D speckle tracking echocardiography in the diagnosis of obstructive sleep apnea and its severity.Scientific reports · 2022Article
- Speckle tracking echocardiography in heart failure development and progression in patients with apneas.Heart failure reviews · 2022Review
- Obstructive Sleep Apnea and Sleep Structure Assessed in Polysomnography and Right Ventricular Strain Parameters.Brain sciences · 2022Article
- Association of Pulmonary Artery Pulsatility Index With Adverse Cardiovascular Events Across a Hospital-Based Sample.Circulation. Heart failure · 2022Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Obstructive sleep apnea syndrome (OSAS) can lead to alterations in right ventricular (RV) performance and pulmonary vascular haemodynamics. Additionally, altitude-related hypoxia is associated with pulmonary vasoconstriction, and the effect of high-altitude on the pulmonary circulation in OSAS patients can be further altered. We sought to assess alterations in RV morphology and function in OSAS patients living at high altitude by way of 2-dimensional speckle tracking echocardiography (2D-STE), real-time 3- dimensional echocardiography (RT-3DE) and cardiac biomarkers. We also evaluate the impact of continuous positive airway pressure (CPAP) treatment on RV performance. Seventy-one patients with newly diagnosed OSAS and thirty-one controls were included in this study. All individuals were assessed for cardiac biomarkers as well as underwent 2D-STE and RT-3DE. Forty-five OSAS patients underwent CPAP therapy for at least 24 weeks and were studied before and after CPAP treatment. RT-3DE was used to measure RV volume, and calculate RV 3D ejection fraction (3D RVEF). Peak systolic strain was determined. Cardiac biomarkers, including C-reactive protein (CRP), N-terminal pro-B-type natriuretic peptide, and cardiac troponin T were also measured. Right atrium volume index, RV volume, RV volume index, systolic pulmonary artery pressure (sPAP), pulmonary vascular resistance (PVR) and level of serum CRP were significantly higher in OSAS group, while OSAS patients showed lower 3D RVEF and RV longitudinal strains. Compared to the patients with sPAP < 40 mmHg, RV longitudinal strains in patients with sPAP ≥ 40 mmHg were lower. Both RV global longitudinal strain and sPAP were associated with apnea-hypopnea index. Patients treated with 6 months of CPAP therapy had significant improvement in RV geometry and performance. RV structural abnormalities and RV function impairments were observed in OSAS patients living at moderate high altitude compared to control highlanders. The reversibility of these changes after application of CPAP were further confirmed.
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