Journal of hypertension · 2024
Relationship between systolic blood pressure and renal function on clinical outcomes in patients with atrial fibrillation: a report from the prospective AF-GEN-UK Registry.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Shantsila Alena, Lip Gregory Y H, Lane Deirdre A
Аннотация
BACKGROUND: Blood pressure (BP) extremes and renal (dys)function contribute to poor outcomes in patients with atrial fibrillation (AF). Using data from the prospective AF-GEN-UK study, we investigated the effect of systolic BP and interaction with renal function for prognostication.
METHODS: Baseline systolic BP (SBP) values were recorded for 1580 patients (mean [SD] age 71 [11] years, 60% male) and categorized as follows: 120-129 mmHg ( n = 289, reference group) <110 mmHg ( n = 165), 110-119 mmHg, ( n = 254), 130-139 mmHg ( n = 321), 140-159 mmHg ( n = 385) and ≥160 mmHg ( n = 166). Cox regression analysis, adjusted for age, oral anticoagulation (OAC) and CHA 2 DS 2 -VASc score established the impact of SBP, renal function and their interaction on 1-year outcomes. SBP groups were compared using ANOVA and chi-square tests.
RESULTS: OAC use was 84% and similar across SBP groups. Renal dysfunction [estimated baseline glomerular filtration rate (eGFR) < 60 ml/min] was present in 24%, with significantly lower eGFR values in the SBP 110-119 mmHg group. History of heart failure was significantly higher in those with SBP <110 mmHg. SBP <110 mmHg was predictive of all cause-death on univariate [hazard ratio (HR) 2.36, 95% confidence interval (CI) 1.20-4.64] and adjusted (aHR 9.71, 95% CI 1.73-54.5) regression. There was no statistically significant interaction between SBP and eGFR, no associations of SBP with haemorrhagic or thromboembolic events.
CONCLUSIONS: In people with AF, SBP <110 mmHg was independently predictive of all-cause death, with no significant interaction between SBP and renal (dys)function. This may reflect general poor health and/or excessive antihypertensive therapy, which should be avoided.
METHODS: Baseline systolic BP (SBP) values were recorded for 1580 patients (mean [SD] age 71 [11] years, 60% male) and categorized as follows: 120-129 mmHg ( n = 289, reference group) <110 mmHg ( n = 165), 110-119 mmHg, ( n = 254), 130-139 mmHg ( n = 321), 140-159 mmHg ( n = 385) and ≥160 mmHg ( n = 166). Cox regression analysis, adjusted for age, oral anticoagulation (OAC) and CHA 2 DS 2 -VASc score established the impact of SBP, renal function and their interaction on 1-year outcomes. SBP groups were compared using ANOVA and chi-square tests.
RESULTS: OAC use was 84% and similar across SBP groups. Renal dysfunction [estimated baseline glomerular filtration rate (eGFR) < 60 ml/min] was present in 24%, with significantly lower eGFR values in the SBP 110-119 mmHg group. History of heart failure was significantly higher in those with SBP <110 mmHg. SBP <110 mmHg was predictive of all cause-death on univariate [hazard ratio (HR) 2.36, 95% confidence interval (CI) 1.20-4.64] and adjusted (aHR 9.71, 95% CI 1.73-54.5) regression. There was no statistically significant interaction between SBP and eGFR, no associations of SBP with haemorrhagic or thromboembolic events.
CONCLUSIONS: In people with AF, SBP <110 mmHg was independently predictive of all-cause death, with no significant interaction between SBP and renal (dys)function. This may reflect general poor health and/or excessive antihypertensive therapy, which should be avoided.