Niveles de péptido natriurético cerebral y su relación con capacidad funcional y hemodinamia pulmonar en pacientes con hipertensión pulmonar primaria: Correlation with functional capacity and hemodynamic parameters / Brain natriuretic peptide in primary pulmonary ypertension
Rev. méd. Chile
;
134(3): 299-304, mar. 2006. tab, graf
Artigo
em Espanhol
| LILACS
| ID: lil-426095
RESUMO
Background:
Primary pulmonary hipertension (PPH) is a progressive disease leading to right heart failure and death. Right heart catherization and maximal or submaximal tests are employed to assess the course of the disease. A neurohormonal parameter such as pro-brain natriuretic peptide (BNP) would be helpful in the assessment of these patients.Aim:
To study the correlation of BNP with functional status and non-invasive hemodynamic determinations in patients with PPH. Material andmethods:
Twelve patients (mean age 48 years; 58% female) were evaluated with 6 minutes walk distance test (6-min WT), plasma BNP, systolic pulmonary artery pressure (PAP), pulmonary vascular resistance (PVR) and cardiac output (CO) determined by echocardiogram. Plasma BNP levels were compared with normal subjects.Results:
BNP levels were increased in PPH patients (1270±547 vs 48±8 pg/ml, p-value <0.01). Mean PAPs was 82±27 mmHg and the mean distance walked in 6 minutes was 407±113 meters. BNP levels were positively correlated with PVR (r=0.58, p-value=0.006) and negatively correlated with 6-min WT (r=-0.83, p-value <0.001). No correlation was found between BNP levels, PAPs and CO.Conclusions:
In PPH patients, BNP levels are increased and correlate with functional class and PVR. Follow-up studies are needed to evaluate the role of BNP as a marker of progression and therapeutic response in PPH patients.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Fragmentos de Peptídeos
/
Peptídeo Natriurético Encefálico
/
Hipertensão Pulmonar
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Feminino
/
Humanos
/
Masculino
Idioma:
Espanhol
Revista:
Rev. méd. Chile
Assunto da revista:
Medicina
Ano de publicação:
2006
Tipo de documento:
Artigo
País de afiliação:
Chile
Instituição/País de afiliação:
Pontificia Universidad Católica de Chile/CL
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