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Background: The prognostic value of B-type natriuretic peptide (BNP) is unknown in low-flow, low-gradient aortic stenosis (AS). We sought to evaluate the relationship between AS and rest, stress hemodynamics, and clinical outcome.
Methods And Results: BNP was measured in 69 patients with low-flow AS (indexed effective orifice area < 0.6 cm2/m2, mean gradient < or = 40 mm Hg, left ventricular ejection fraction < or = 40%). All patients underwent dobutamine stress echocardiography and were classified as truly severe or pseudosevere AS by their projected effective orifice area at normal flow rate of 250 mL/s (effective orifice area < or = 1.0 cm2 or > 1.0 cm2). BNP was inversely related to ejection fraction at rest (Spearman correlation coefficient r(s)=-0.59, P<0.0001) and at peak stress (r(s)=-0.51, P<0.0001), effective orifice area at rest (r(s)=-0.50, P<0.0001) and at peak stress (r(s)=-0.46, P=0.0002), and mean transvalvular flow (r(s)=-0.31, P=0.01). BNP was directly related to valvular resistance (r(s)=0.42, P=0.0006) and wall motion score index (r(s)=0.36, P=0.004). BNP was higher in 29 patients with truly severe AS versus 40 with pseudosevere AS (median, 743 pg/mL [Q1, 471; Q3, 1356] versus 394 pg/mL [Q1, 191 to Q3, 906], P=0.012). BNP was a strong predictor of outcome. In the total cohort, cumulative 1-year survival of patients with BNP > or = 550 pg/mL was only 47+/-9% versus 97+/-3% with BNP < 550 (P<0.0001). In 29 patients who underwent valve replacement, postoperative 1-year survival was also markedly lower in patients with BNP > or = 550 pg/mL (53+/-13% versus 92+/-7%).
Conclusions: BNP is significantly higher in truly severe than pseudosevere low-gradient AS and predicts survival of the whole cohort and in patients undergoing valve replacement.
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http://dx.doi.org/10.1161/CIRCULATIONAHA.106.654210 | DOI Listing |
US Cardiol
August 2020
Leon H Charney Division of Cardiology, NYU Langone Health New York, NY.
Remarkable advances in the care and survival of congenital heart disease (CHD) patients have led to increasing numbers of young women with CHD who carry a pregnancy with significant risk. The profound hemodynamic changes that naturally occur during gestation may unmask CHD or exacerbate an existing condition and place both the woman and fetus in jeopardy. The caring cardiologist should be familiar with the specific lesion and anticipate complications.
View Article and Find Full Text PDFBackground: Aortic valve stenosis (AVS) is a progressive disease characterized by fibrosis, inflammation, calcification, and stiffening of the aortic valve leaflets, leading to disrupted blood flow. If untreated, AVS can progress to heart failure and death within 2 to 5 years. Uncovering the molecular mechanisms behind AVS is key for developing effective noninvasive therapies.
View Article and Find Full Text PDFCatheter Cardiovasc Interv
December 2024
Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
Background: Hypoattenuating leaflet thickening (HALT) following transcatheter aortic valve replacement (TAVR) may compromise valve durability, posing a significant barrier to the broader adoption of this technology among younger patients. Self-expanding valves (SEVs) are the most commonly used transcatheter heart valves (THVs) among Chinese patients with aortic stenosis. Understanding the potential mechanisms underlying HALT is, therefore, critical to guide future THV design and development.
View Article and Find Full Text PDFFront Cardiovasc Med
December 2024
Oxford Heart Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
In patients undergoing transcatheter aortic valve implantation (TAVI), multi-valve disease is common and associated with worse outcomes. Despite multiple emerging transcatheter valve treatment options, no guidelines exist for the transcatheter treatment of multi-valve disease. We present a case of a 76-year-old patient with concomitant severe aortic valve stenosis and severe mitral valve stenosis who underwent concurrent TAVI and transcatheter mitral valve replacement.
View Article and Find Full Text PDFFront Public Health
December 2024
Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
Introduction: The adverse health effects of sugar-sweetened beverage intake are well-established, but the implications of overall added sugar intake remain unclear. We investigated the associations between intake of added sugar and various sugar-sweetened foods and beverages and risk of 7 cardiovascular diseases in 69,705 participants aged 45-83 years (47.2% female) from the Swedish Mammography cohort and Cohort of Swedish men.
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