Ultrasound lung comets for the differential diagnosis of acute cardiogenic dyspnoea: a comparison with natriuretic peptides.

Abstract:

BACKGROUND:Acute dyspnoea as a presenting symptom is a frequent diagnostic challenge for physicians. The main differential diagnosis is between dyspnoea of cardiac and non-cardiac origin. Natriuretic peptides have been shown to be useful in this setting. Ultrasound lung comets (ULCs) are a simple, echographic method which can be used to assess pulmonary congestion. AIM:To evaluate the accuracy of ULCs for predicting dyspnoea of cardiac origin compared to natriuretic peptides. METHODS:We evaluated 149 patients admitted with acute dyspnoea. Chest sonography and NT-proBNP assessments were performed a maximum of 4 h apart and independently analyzed. ULCs were evaluated via cardiac probes placed on the anterior and lateral chest. Two independent physicians, blinded to ULCs and NT-proBNP findings, reviewed all the medical records to establish the aetiologic diagnosis of dyspnoea. RESULTS:Cardiogenic dyspnoea was confirmed in 122 patients and ruled-out in 27 patients. The number of ULCs was significantly correlated to NT-proBNP values (r=.69, p<.0001). Receiver operating characteristic analysis, showed an area under the curve of .893 for ULCs and .978 (p=.001) for NT-proBNP, in predicting the cardiac origin of dyspnoea. CONCLUSIONS:In patients admitted with acute dyspnoea, pulmonary congestion, sonographically imaged as ULCs, is significantly correlated to NT-proBNP values. The accuracy of ULCs in predicting the cardiac origin of dyspnoea is high.

journal_name

Eur J Heart Fail

authors

Gargani L,Frassi F,Soldati G,Tesorio P,Gheorghiade M,Picano E

doi

10.1016/j.ejheart.2007.10.009

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

70-7

issue

1

eissn

1388-9842

issn

1879-0844

pii

S1388-9842(07)00430-8

journal_volume

10

pub_type

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