Key result
The highest quartile of visit-to-visit systolic blood pressure variability increased the risk of macrovascular complications compared to the lowest quartile.
Why the study?
The study evaluated the effects of visit-to-visit variability of systolic and diastolic blood pressure on macrovascular and microvascular complications among patients with type 2 diabetes.
Does high visit-to-visit blood pressure variability increase the risk of macrovascular and microvascular complications in patients with type 2 diabetes?
Cohort (n=11,043)
Yes
Does high visit-to-visit blood pressure variability increase the risk of macrovascular and microvascular complications in patients with type 2 diabetes?
High visit-to-visit blood pressure variability is a significant predictor of macrovascular and microvascular complications in patients with type 2 diabetes, suggesting a potential target of SD of SBP <6.45 mm Hg and SD of DBP <4.81 mm Hg.
Answers are grounded in this paper and cite their sources.
Visit-to-visit SBP variability was associated with macrovascular risk in T2D; extends observational data but leaves causal benefit open.
Background We evaluated the effects of visit‐to‐visit variability of systolic blood pressure (SBP) and diastolic blood pressure (DBP) on macrovascular and microvascular complications among patients with type 2 diabetes. Methods A total of 11 043 patients with type 2 diabetes from primary healthcare institutions between January 2010 and June 2020 were included. The visit‐to‐visit blood pressure variability was calculated using three metrics: SD, coefficient of variation (CV), and average real variability (ARV), obtained over a 12‐month measurement period. The associations of visit‐to‐visit blood pressure variability with macrovascular and microvascular complications were evaluated using multivariate‐adjusted Cox proportional hazards models, and hazard ratio (HR) with 95% confidence interval (CI) were reported. Results There were 330 macrovascular events and 542 microvascular events. Compared to those for participants with the lowest quartile of SD of SBP and DBP, increased risks were observed in patients with the highest quartile of SD of SBP and DBP for macrovascular complications (SD‐SBP: HR = 1.78, 95% CI: 1.24–2.57; SD‐DBP: HR = 2.20, 95% CI: 1.50–3.25) and microvascular complications (SD‐SBP: HR = 1.85, 95% CI: 1.39–2.46; SD‐DBP: HR = 1.82, 95% CI: 1.36–2.44). CV and ARV of SBP and DBP also had statistically significant associations with macrovascular and microvascular complications. The optimal variability of blood pressure target was SD of SBP <6.45 mm Hg and SD of DBP <4.81 mm Hg. Conclusions Visit‐to‐visit blood pressure variability may be a potential predictor for macrovascular and microvascular complications in patients with type 2 diabetes.
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Deng et al. (2022) conducted a cohort in Type 2 diabetes (n=11,043). Highest quartile of visit-to-visit blood pressure variability vs. Lowest quartile of visit-to-visit blood pressure variability was evaluated on Macrovascular complications (HR 1.78, 95% CI 1.24-2.57). The highest quartile of visit-to-visit systolic blood pressure variability increased the risk of macrovascular complications compared to the lowest quartile.
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