About this trial
This study aims to evaluate the clinical efficacy of non-invasive ventilation (NIV) in treating patients with high-altitude polycythemia (HAPC).
Participants will be enrolled according to the international diagnostic criteria for high-altitude polycythemia. The study will use both retrospective cohort and prospective study methods.
All participants will receive standard basic care. In addition, the intervention group will receive non-invasive ventilation treatment using either BiPAP or CPAP mode.
Key measurements, including routine blood tests, liver function, renal function, uric acid, blood lipid profile, electrocardiogram and echocardiography, will be collected as primary and secondary outcome measures to assess the effects of the treatment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Diagnosed with high-altitude polycythemia (HAPC).
Aged 18 years or older, with no gender restriction.
Voluntarily participate in the study and sign the informed consent form.
Disqualifiers
Disturbance of consciousness.
Inability to independently clear airway secretions, with the risk of aspiration.
Severe upper gastrointestinal bleeding.
Hemodynamic instability.
Trial design
Parallel
Treatments tested in this trial
Non-invasive ventilator
Other interventionTreatment with non-invasive ventilator (CPAP, BiPAP) in the intervention group.
Treatment groups
Trial outcomes
Primary outcomes
Change in Hemoglobin (Hb) Concentration
The primary endpoint is the absolute change in blood hemoglobin concentration (g/dL) from baseline to 3-month and 6-month follow-up. A reduction in hemoglobin level is defined as a clinically significant improvement in high altitude polycythemia status.
Secondary outcomes
Change in Serum uric acid and blood lipid levels
Changes in serum uric acid, total cholesterol, triglycerides, high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) will be measured.
Sponsors and contacts
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