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. 2023 Jun;30(6):1676-1685.
doi: 10.1111/ene.15759. Epub 2023 Mar 10.

Effect of small vessel disease severity on blood pressure management after endovascular therapy in the BP TARGET trial

Ran Brauner  1   2 , Benjamin Gory  3   4 , Bertrand Lapergue  5 , Igor Sibon  6 , Sebastien Richard  7 , Maeva Kyheng  8 , Julien Labreuche  8 , Jean-Philippe Desilles  2   9   10   11 , Raphael Blanc  2   10   11 , Michel Piotin  2   10   11 , Jean-Michel Halimi  12   13   14 , Mikael Mazighi  2   9   10   11   15 , Benjamin Maïer  2   9   10   11   16 ; BP TARGET Investigators
Collaborators, Affiliations

Effect of small vessel disease severity on blood pressure management after endovascular therapy in the BP TARGET trial

Ran Brauner et al. Eur J Neurol. 2023 Jun.

Abstract

Background and purpose: Acute ischaemic stroke patients with cerebral small vessel disease (CSVD), including cerebral microbleeds (CMBs) and white matter hyperintensities (WMHs), have worse outcomes. The effect was investigated of two blood pressure strategies (intensive vs. standard) and blood pressure variability (BPV) after reperfusion according to CSVD burden in the BP TARGET trial.

Methods: Patients with available magnetic resonance imaging at baseline were included. CMBs were described as absent or present and WMH severity was described according to the Fazekas classification (0-1, absent-mild; 2-3, moderate to severe). Outcomes consisted of any intracerebral hemorrhage (ICH) at 24 h and favorable outcome at 90 days (modified Rankin Scale score between 0 and 2).

Results: In all, 246 patients were included. The intensive systolic blood pressure target was not associated with lower rates of ICH or favorable outcome according to CSVD subgroups (all p values >0.35). Several BPV parameters were associated with increased odds of ICH in patients with CMBs but not in patients without CMBs (diastolic blood pressure coefficient of variation, odds ratio 2.06, 95% confidence interval [CI] 1.13-3.77, in patients with ≥1 CMB vs. 0.94, 95% CI 0.68-1.31, in patients without CMBs, phet = 0.026). Several diastolic BPV parameters were associated with worse outcomes in patients with severe WMHs but not in patients without WMHs (diastolic blood pressure coefficient of variation, odds ratio 0.32, 95% CI 0.17-0.61, in patients with severe WMHs vs. 1.09, 95% CI 0.67-1.79, in patients without WMHs; phet = 0.003).

Conclusion: No effect of the intensive systolic blood pressure management strategy was found on ICH occurrence or functional outcome according to CSVD burden. BPV was associated with higher odds of ICH in patients with CMBs and worse outcome in patients with moderate-to-severe WMHs.

Keywords: blood pressure; disability; endovascular therapy; stroke; thrombectomy.

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References

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