Plasma pro-B-type natriuretic peptide testing as a screening method for hypertrophic cardiomyopathy.

Abstract:

BACKGROUND:Clinical multistage risk assessment associated with electrocardiogram (ECG) and NT-proBNP may be a feasible strategy to screen hypertrophic cardiomyopathy (HCM). We investigated the effectiveness of a screening based on ECG and NT-proBNP in first-degree relatives of patients with HCM. METHODS AND RESULTS:A total of 106 first-degree relatives were included. All individuals were evaluated by echocardiography, ECG, NT-proBNP, and molecular screening (available for 65 individuals). From the 106 individuals, 36 (34%) had diagnosis confirmed by echocardiography. Using echocardiography as the gold standard, ECG criteria had a sensitivity of 0.71, 0.42, and 0.52 for the Romhilt-Estes, Sokolow-Lyon, and Cornell criteria, respectively. Mean values of NT-ProBNP were higher in affected as compared with nonaffected relatives (26.1 vs. 1290.5, P < .001). The AUC of NT-proBNP was 0.98. Using a cutoff value of 70 pg/mL, we observed a sensitivity of 0.92 and specificity of 0.96. Using molecular genetics as the gold standard, ECG criteria had a sensitivity of 0.67, 0.37, and 0.42 for the Romhilt-Estes, Sokolow-Lyon, and Cornell criteria, respectively. Using a cutoff value of 70 pg/mL, we observed a sensitivity of 0.83 and specificity of 0.98. CONCLUSION:Values of NT-proBNP above 70 pg/mL can be used to effectively select high-risk first-degree relatives for HCM screening.

journal_name

J Card Fail

authors

Fernandes F,Arteaga-Fernandez E,Antunes Mde O,Buck P,Marsiglia JD,Matsumoto A,Nastari L,Krieger JE,Pereira AC,Mady C

doi

10.1016/j.cardfail.2012.04.005

subject

Has Abstract

pub_date

2012-07-01 00:00:00

pages

564-8

issue

7

eissn

1071-9164

issn

1532-8414

pii

S1071-9164(12)00120-0

journal_volume

18

pub_type

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