Korean J Pediatr.  2010 Apr;53(4):519-524. 10.3345/kjp.2010.53.4.519.

NT-proBNP as a useful tool in diagnosing incomplete Kawasaki disease

• Lee DW
• Kim YH
• Hyun MC
• Kwon TC
• Lee SB

• KMID: 2073577
• DOI: http://doi.org/10.3345/kjp.2010.53.4.519

Abstract

PURPOSE
To determine the efficacy of the N-terminal fragment of B-type natriuretic peptide (NT-proBNP) as a useful diagnostic method in children with incomplete Kawasaki disease (KD).
METHODS
Ninety-six patients who were diagnosed as having KD between January 2008 and June 2009 were enrolled in the study. American Heart Association recommendations for diagnosis were used, and patients were divided into the complete KD and incomplete KD groups. Blood tests including NT-proBNP were performed on admission day. Nineteen patients who had other febrile diseases other than KD were enrolled as control.
RESULTS
Thirty-three patients (34%) had incomplete KD. Change in the lips and oral cavity and conjunctivitis were the most common clinical features, but their frequency was lower than complete KD (76% vs 98%, 76% vs 90%). Patients with incomplete KD exhibited significantly higher NT-proBNP level than that of control (1,407.7+/-1633.5 pg/mL vs 126.2+/-135.5 pg/mL, p<0.001). An NT-proBNP cutoff value of 158 pg/mL provided a sensitivity of 81% and a specificity of 74% for diagnosis of incomplete KD.
CONCLUSION
NT-proBNP assay can be clinically useful for the diagnosis of incomplete KD, if the patient has persistent fever, change in the lips and oral cavity, and conjunctivitis, and if the patient with those symptoms is suspected to have incomplete KD.

Keyword

Kawasaki disease; NT-proBNP

MeSH Terms

American Heart Association
Child
Conjunctivitis
Fever
Hematologic Tests
Humans
Lip
Mouth
Mucocutaneous Lymph Node Syndrome
Natriuretic Peptide, Brain
Peptide Fragments
Sensitivity and Specificity
Natriuretic Peptide, Brain
Peptide Fragments