CBS 2019
CBSMD教育中心
中 文

Other Relevant Articles

Abstract

Recommended Article

Effect of Systolic and Diastolic Blood Pressure on Cardiovascular Outcomes Derivation and Validation of a Chronic Total Coronary Occlusion Intervention Procedural Success Score From the 20,000-Patient EuroCTO Registry:The EuroCTO (CASTLE) Score Radionuclide Image-Guided Repair of the Heart Pediatric Post–Cardiac Arrest Care: A Scientific Statement From the American Heart Association Association of Coronary Anatomical Complexity With Clinical Outcomes After Percutaneous or Surgical Revascularization in the Veterans Affairs Clinical Assessment Reporting and Tracking Program Know Diabetes by Heart: A Partnership to Improve Cardiovascular Outcomes in Type 2 Diabetes Mellitus Coronary Plaque Features on CTA Can Identify Patients at Increased Risk of Cardiovascular Events Long-Term Outcomes in Women and Men Following Percutaneous Coronary Intervention

Original Research2019; 381:243-251

JOURNAL:N Engl J Med. Article Link

Effect of Systolic and Diastolic Blood Pressure on Cardiovascular Outcomes

AC Flint, C Conell, DL Bhatt et al. Keywords: hypertension; systolic blood pressure; diastolic blood pressure; multivariable Cox survival analysis; MACE

ABSTRACT

BACKGROUND - The relationship between outpatient systolic and diastolic blood pressure and cardiovascular outcomes remains unclear and has been complicated by recently revised guidelines with two different thresholds (140/90 mm Hg and 130/80 mm Hg) for treating hypertension.


METHODS - Using data from 1.3 million adults in a general outpatient population, we performed a multivariable Cox survival analysis to determine the effect of the burden of systolic and diastolic hypertension on a composite outcome of myocardial infarction, ischemic stroke, or hemorrhagic stroke over a period of 8 years. The analysis controlled for demographic characteristics and coexisting conditions.


RESULTS - The burdens of systolic and diastolic hypertension each independently predicted adverse outcomes. In survival models, a continuous burden of systolic hypertension (140 mm Hg; hazard ratio per unit increase in z score, 1.18; 95% confidence interval [CI], 1.17 to 1.18) and diastolic hypertension (90 mm Hg; hazard ratio per unit increase in z score, 1.06; 95% CI, 1.06 to 1.07) independently predicted the composite outcome. Similar results were observed with the lower threshold of hypertension (130/80 mm Hg) and with systolic and diastolic blood pressures used as predictors without hypertension thresholds. A J-curve relation between diastolic blood pressure and outcomes was seen that was explained at least in part by age and other covariates and by a higher effect of systolic hypertension among persons in the lowest quartile of diastolic blood pressure.