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. 2020 Dec;38(12):2409-2415.
doi: 10.1097/HJH.0000000000002556.

Predictive value of admission blood pressure for 3-month mortality in patients undergoing revascularization for critical limb ischemia

Alexandra Yannoutsos  1   2 , Franck Lin  3 , Olivier Billuart  3 , Roxane Gaisset  1 , Emmanuelle Sacco  4 , Hélène Beaussier  4 , Anne Buronfosse  3 , Jean-Jacques Mourad  5 , Joseph Emmerich  1   2 , Isabelle Lazareth  1 , Pascal Priollet  1
Affiliations

Predictive value of admission blood pressure for 3-month mortality in patients undergoing revascularization for critical limb ischemia

Alexandra Yannoutsos et al. J Hypertens. 2020 Dec.

Abstract

Objective: In patients with critical limb ischemia (CLI), blood pressure (BP) impact on mortality is unknown. We analyzed the predictive value of SBP, DBP and pulse pressure (PP) at hospital admission on 3-month mortality in patients with CLI undergoing revascularization procedure.

Methods: From November 2013 to December 2018, 297 consecutive patients were retrospectively included. Admission BP was recorded using automated brachial sphygmomanometer, before revascularization procedure. A median of seven (IQR3-13) separate readings were recorded for each patient and the average represented patient's mean BP (mBP). Clinical and biological parameters were recorded at baseline.

Results: The cohort included 163 men (55%) and 134 women (45%) with a mean age of 77.7 ± 11.9 years. Treated hypertension and diabetes were present in, respectively, 62 and 48% of patients. Mean SBP, DBP and PP were 132 ± 18, 70 ± 8 and 62 ± 16 mmHg. Thirty-four patients (11.4%) died during 3-month follow-up, mostly from cardiovascular causes. In univariate analysis, age, female sex, brain natriuretic peptide and C-reactive protein were positively correlated with mortality. BMI, mSBP, mDBP, mPP, hemoglobin, serum albumin and statin treatment were negatively correlated with mortality. In single-pressure multivariate analyses, mSBP (P = 0.024) and mPP (P = 0.030) were negatively correlated with mortality. Association between mSBP and mortality had an asymptotic curve pattern and SBP level 135 mmHg or less was significantly correlated with mortality.

Conclusion: In patients undergoing revascularization for CLI, admission SBP is an independent predictor for short-term mortality with a negative relationship. SBP level 135 mmHg or less represents a warning sign to explore and correct associated comorbidities.

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