Electrical impedance tomography in pulmonary arterial hypertension

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art_HOVNANIAN_Electrical_impedance_tomography_in_pulmonary_arterial_hypertension_2021.PDF (1.28 MB)
Citações na Scopus
5
Tipo de produção
article
Data de publicação
2021
DOI
Scopus
Web of Science
PubMed
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Título do Volume
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PUBLIC LIBRARY SCIENCE
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Citação
PLOS ONE, v.16, n.3, article ID e0248214, 13p, 2021
Projetos de Pesquisa
Unidades Organizacionais
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Resumo
The characterization of pulmonary arterial hypertension (PAH) relies mainly on right heart catheterization (RHC). Electrical impedance tomography (EIT) provides a non-invasive estimation of lung perfusion that could complement the hemodynamic information from RHC. To assess the association between impedance variation of lung perfusion (Delta Z(Q)) and hemodynamic profile, severity, and prognosis, suspected of PAH or worsening PAH patients were submitted simultaneously to RHC and EIT. Measurements of Delta Z(Q) were obtained. Based on the results of the RHC, 35 patients composed the PAH group, and eight patients, the normopressoric (NP) group. PAH patients showed a significantly reduced Delta Z(Q) compared to the NP group. There was a significant correlation between Delta Z(Q) and hemodynamic parameters, particularly with stroke volume (SV) (r = 0.76; P < 0.001). At 60 months, 15 patients died (43%) and 1 received lung transplantation; at baseline they had worse hemodynamics, and reduced Delta Z(Q) when compared to survivors. Patients with low Delta Z(Q) (<= 154.6%.Kg) presented significantly worse survival (P = 0.033). Delta Z(Q) is associated with hemodynamic status of PAH patients, with disease severity and survival, demonstrating EIT as a promising tool for monitoring patients with pulmonary vascular disease.
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https://observatorio.fm.usp.br/handle/OPI/40592
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCP
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - HU
Artigos e Materiais de Revistas Científicas - LIM/09
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