期刊
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
卷 173, 期 7, 页码 744-750出版社
AMER THORACIC SOC
DOI: 10.1164/rccm.200510-1545OC
关键词
chronic obstructive pulmonary disease; fibrosis; hypertension, pulmonary; natriuretic peptide, brain
Rationale:The detection of pulmonary hypertension in patients with chronic lung disease has prognostic implications. The brain natriuretic peptide (BNP) has been suggested as a noninvasive marker for the presence and severity of pulmonary hypertension. Objectives: We evaluated circulating BNP levels as a parameter for the presence and severity of pulmonary hypertension in patients with chronic lung disease. Methods: BNP levels were measured in 176 consecutive patients with various pulmonary diseases. Right heart catheterization, lung functional testing, and a 6-min walk test were performed. The mean follow-up time was nearly 1 yr. Measurements and Main Results: Significant pulmonary hypertension (mean pulmonary artery pressure > 35 mm Hg) was diagnosed in more than one-fourth of patients and led to decreased exercise tolerance and life expectancy. Elevated BNP concentrations identified significant pulmonary hypertension with a sensitivity of 0.85 and specificity of 0.88 and predicted mortality. Moreover, BNP served as a risk factor of death independent of lung functional impairment or hypoxemia in uni- and multivariate analysis. Conclusion:We suggest BNP as a prognostic marker and as screening parameter for significant pulmonary hypertension in chronic lung disease.
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