Korean J Pediatr.
2011 Aug;54(8):340-344. 10.3345/kjp.2011.54.8.340.
Log-transformed plasma level of brain natriuretic peptide during the acute phase of Kawasaki disease is quantitatively associated with myocardial dysfunction
- Affiliations
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- 1Division of Pediatric Cardiology, Department of Pediatrics, University of Ulsan College of Medicine, Seoul, Korea. pediatrist@medimail.co.kr
- 2Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea.
- 3Department of Pediatrics, Kosin University College of Medicine, Busan, Korea.
- KMID: 2284329
- DOI: http://doi.org/10.3345/kjp.2011.54.8.340
Abstract
- PURPOSE
Brain natriuretic peptide (BNP) has been considered a biochemical marker for myocarditis in Kawasaki disease. We performed this study to determine its quantitative significance.
METHODS
We attempted to correlate log-transformed BNP concentrations (log-BNP) and clinical, laboratory, and echocardiographic variables in 81 children with Kawasaki disease. Stepwise multiple linear regression analysis was used to determine the variables independently associated with log-BNP concentration.
RESULTS
Serum C-reactive protein level (P<0.0001), serum alanine aminotransferase concentration (P=0.0032), white blood cell count (P=0.0030), and left ventricular mass index (P=0.0024) were positively related with log-BNP, and hemoglobin level (P<0.0001), serum albumin level (P<0.0001), Na+ concentrations (P<0.0001), left ventricular fractional shortening (P=0.0080), and peak early diastolic tissue velocity of the left ventricular basal lateral segment (P=0.0045) were negatively related to the log-BNP concentration. Multiple regression analysis showed that serum albumin concentration (R2=0.31, P=0.0098) and left ventricular mass index (R2=0.09, P=0.0004) were significantly associated with the log-BNP concentration.
CONCLUSION
Elevated BNP levels during the acute phase of Kawasaki disease may be attributable to cardiac dysfunction associated with the increase in left ventricular mass, and log-BNP concentration may be a quantitative biochemical marker of myocarditis in Kawasaki disease.
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