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Relationship between natriuretic peptides and echocardiography parameters in patients with poorly regulated type 2 diabetes

Authors Dencker M, Stagmo M, Dorkhan M

Published 18 May 2010 Volume 2010:6 Pages 373—382


Review by Single anonymous peer review

Peer reviewer comments 4

Magnus Dencker1, Martin Stagmo2, Mozhgan Dorkhan3

1Unit of Clinical Physiology and Nuclear Medicine, Department of Clinical Sciences, 2Division of Cardiology, 3Division of Diabetes and Endocrinology, Malmö University Hospital, Malmö, Sweden

Abstract: This study evaluated the relationship between natriuretic peptide levels and a wide range of echocardiography parameters in a population of thirty-three patients with poorly regulated type 2 diabetes, and no known heart failure. Natriuretic peptides brain natriuretic peptide (BNP) and N-terminal prohormone BNP (NT-proBNP) were measured. Transthoracic echocardiography was performed and cardiac volumes and ejection fraction were measured. Doppler and tissue Doppler were measured and diastolic function was stratified according to recent guidelines. Very few echocardiography parameters were correlated with BNP or NT-proBNP levels. However, left atrial end-systolic volume indexed for body surface area was correlated with natural logarithm (ln) BNP and ln NT-proBNP (r = 0.62 and r = 0.60; P < 0.05). There were significant differences in ln BNP and ln NT-proBNP levels between those with normal and those with abnormal diastolic function (1.4 vs 3.1; P < 0.001 and 3.4 vs 5.8; P < 0.001). This study showed that very few echocardiography parameters were correlated with BNP or NT-proBNP levels in patients with poorly regulated type 2 diabetes, which in part contradicts previous studies in other diabetic populations. The exception was left atrial end-systolic volume that showed a moderate correlation with BNP or NT-proBNP levels. There were significant differences in BNP and NT-proBNP levels between the group with normal left ventricular diastolic function and the group with abnormal diastolic function.

Keywords: type 2 diabetes, natriuretic peptides, echocardiography

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