Diastolic blood pressure predicts coronary plaque volume in patients with coronary artery disease.
Atherosclerosis
; 277: 34-41, 2018 10.
Article
em En
| MEDLINE
| ID: mdl-30170222
ABSTRACT
BACKGROUND AND AIMS:
Hypertension is associated with increased clinical and subclinical coronary artery disease (CAD); however, the relationship between blood pressure and coronary plaque volume is unclear. We examined the effect of systolic blood pressure (SBP) and diastolic blood pressure (DBP) on coronary artery plaque volume.METHODS:
285 subjects with stable CAD on statin therapy underwent coronary computed tomographic angiography to measure volume of fatty, fibrous, noncalcified, calcified and total coronary plaque.RESULTS:
Mean (SD) age was 63.1 (7.7); mean (SD) LDL-C, 78.7â¯mg/dL (28.5). Compared to the highest DBP tertile (>76â¯mmHg), those in the lowest DBP tertile (≤68â¯mmHg) had lower volumes of fatty 10.0 vs. 7.7â¯mm3/mm, (p trendâ¯=â¯0.042), fibrous 19.6 vs. 13.8â¯mm3/mm (p trendâ¯=â¯0.011), non-calcified 29.7 vs. 22.5â¯mm3/mm (p trendâ¯=â¯0.017) and total plaque 37.8 vs. 25.1â¯mm3/mm (p trendâ¯=â¯0.010) whereas there was no relationship with SBP tertiles. Similarly, when examined as a continuous variable, higher DBP was a significant independent predictor of higher plaque volume after multivariate adjustment for every 1â¯mmHg increase in DBP, fibrous plaque increased 0.128â¯mm3/mm (pâ¯=â¯0.022), noncalcified plaque increased 0.176â¯mm3/mm (pâ¯=â¯0.045), calcified plaque increased 0.096â¯mm3/mm (pâ¯=â¯0.001) and total plaque increased 0.249â¯mm3/mm (pâ¯=â¯0.019) whereas SBP ranging from 95 to 154â¯mmHg did not predict plaque volume.CONCLUSIONS:
Level of DBP predicts coronary plaque with a DBP tertile ≤68â¯mmHg associated with the least amount of coronary plaque in subjects with LDL-C < 80â¯mg/dL.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Pressão Sanguínea
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Doença da Artéria Coronariana
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Angiografia Coronária
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Vasos Coronários
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Placa Aterosclerótica
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Angiografia por Tomografia Computadorizada
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Hipertensão
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article