This study is a multicenter, prospective, randomized, open-label, parallel-controlled clinical trial. The study participants are adult patients with hypertension who have been long-term residents (for \>6 months) in high-altitude regions (≥2500 m). They are randomly assigned to one of two groups: a conventional medication group and a remote ischemic conditioning (RIC) intervention group. The study aims to evaluate the effectiveness of a standardized 30-day RIC intervention, as an add-on to conventional antihypertensive medication, for reducing blood pressure in hypertensive immigrants living at high altitude.
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Parallel
RIC
DeviceParticipants will undergo a 7-day remote ischemic conditioning (RIC) intervention prior to ascending to high altitude. On the day following the completion of the RIC intervention, they will ascend to a high-altitude region (\>2500 m). Standardized RIC treatment will be administered using a dedicated RIC device. Each intervention session consists of 5 cycles. Every cycle includes 5 minutes of bilateral upper limb ischemia followed by 5 minutes of reperfusion. The cuff pressure for inducing ischemia is set at 200 mmHg. The intervention is administered twice daily for 30 consecutive days.
Percentage change in 24-hour mean systolic blood pressure from baseline.
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