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News
Blood pressure swings spell danger for vasculitis patients. A new study finds that visit-to-visit systolic blood pressure variability — not average blood pressure — independently predicts all-cause mortality in patients with ANCA-associated vasculitis on maintenance therapy. Each 5 mm Hg increase in variability was linked to roughly double the risk of death.
It's not just how high your blood pressure is — it's how much it fluctuates. A retrospective study of 95 patients with ANCA-associated vasculitis (AAV) on maintenance therapy found that greater visit-to-visit systolic blood pressure variability (SBPV) was a strong, independent predictor of all-cause mortality, even after adjusting for age, kidney function, and other key factors.
Notably, average systolic blood pressure over time showed no significant difference between those who died and those who survived — suggesting that BP variability captures a distinct and clinically meaningful risk signal that standard BP monitoring may miss.
Why it matters: AAV is a serious autoimmune condition affecting blood vessels and kidneys, and long-term cardiovascular risk management is critical. This study suggests that routinely tracking BP variability — not just average readings — could help clinicians better identify high-risk patients and tailor treatment strategies to reduce cardiovascular burden.
