Dynamic respiratory mechanics and exertional dyspnoea in pulmonary arterial hypertension
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چکیده
منابع مشابه
Dynamic respiratory mechanics and exertional dyspnoea in pulmonary arterial hypertension.
Patients with pulmonary arterial hypertension (PAH) may exhibit reduced expiratory flows at low lung volumes, which could promote exercise-induced dynamic hyperinflation (DH). This study aimed to examine the impact of a potential exercise-related DH on the intensity of dyspnoea in patients with PAH undergoing symptom-limited incremental cardiopulmonary cycle exercise testing (CPET). 25 young (a...
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Despite a preserved forced expiratory volume in 1 s (FEV1)/vital capacity (VC), patients with idiopathic or heritable pulmonary arterial hypertension (PAH) may dynamically decrease their inspiratory capacity (IC) during cycle exercise (i.e. dynamic hyperinflation) [1–3] and this could increase exertional dyspnoea [1, 3, 4]. Little information is currently available about whether the reduced IC ...
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inspiratory capacity is often decreased in PAH, and that this is associated with a decreased aerobic exercise capacity and a shorter life expectancy. Inspiratory capacity is the difference between total lung capacity and functional residual capacity, and as such increases in the presence of expiratory airflow limitation or dynamic hyperinflation. The authors measured in 50 patients with PAH an ...
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The purpose of cardiopulmonary exercise testing (CPET) in the obese person, as in any cardiopulmonary exercise test, is to determine the patient's exercise tolerance, and to help identify and/or distinguish between the various physiological factors that could contribute to exercise intolerance. Unexplained dyspnoea on exertion is a common reason for CPET, but it is an extremely complex symptom ...
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The purpose of this investigation was to assess the effect of captopril on both systemic (P.a) and pulmonary arterial pressures (PPA) in patients with high-altitude pulmonary hypertension (HAPH). Seventeen patients (mean age 44±6.8 years) with HAPH and mild to moderate systemic arterial hypertension were included in the study. All patients underwent right heart catheterization with measurem...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 2012
ISSN: 0903-1936,1399-3003
DOI: 10.1183/09031936.00223611