Association between lung ultrasound findings and invasive exercise haemodynamics in patients with undifferentiated dyspnoea.

ABSTRACT:

Aims

Dyspnoea is common in heart failure (HF) but non-specific. Lung ultrasound (LUS) could represent a non-invasive tool to detect subclinical pulmonary congestion in patients with undifferentiated dyspnoea.

Methods and results

We assessed the feasibility of an abbreviated LUS protocol (eight and two zones) in a prospective pilot study of 25 ambulatory patients with undifferentiated dyspnoea undergoing clinically indicated invasive cardiopulmonary exercise testing (iCPET) at rest (LUS 1) and after peak exercise (LUS 2). We also related LUS findings (B-lines) to invasive haemodynamics stratified by supine pulmonary capillary wedge pressure (PCWP) (Congestion, >15 mmHg; Control, ≤15 mmHg). All enrolled patients (median age 68, 60% women, 32% prior HF, median ejection fraction

SUBMITTER: Platz E 

PROVIDER: S-EPMC6352886 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature