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The Impact of Bronchodilator Therapy on Systolic Heart Failure with Concomitant Mild to Moderate COPD.
Diseases (Basel) 2017 December 29
In older adults, chronic obstructive pulmonary disease (COPD) is commonly associated with heart failure with reduced ejection fraction (HFrEF), and the high prevalence of this combination suggests that customized treatment is highly necessary in patients with COPD and HFrEF. To investigate whether the treatment of COPD with tiotropium, an anticholinergic bronchodilator, reduces the severity of heart failure in patients with HFrEF complicated by mild to moderate COPD, forty consecutive participants were randomly divided into two groups and enrolled in a crossover design study. Group A inhaled 18 μg tiotropium daily for 28 days and underwent observation for another 28 days. Group B completed the 28-day observation period first and then received tiotropium inhalation therapy for 28 days. Pulmonary and cardiac functions were measured on days 1, 29, and 56. In both groups, 28 days of tiotropium inhalation therapy substantially improved the left ventricular ejection fraction (from 36.3 ± 2.4% to 41.8 ± 5.9%, p < 0.01, in group A; from 35.7 ± 3.8% to 41.6 ± 3.8%, p < 0.01, in group B) and plasma brain natriuretic peptide levels (from 374 ± 94 to 263 ± 92 pg/mL, p < 0.01, in group A; from 358 ± 110 to 246 ± 101 pg/mL, p < 0.01, in group B). Tiotropium inhalation therapy improves pulmonary function as well as cardiac function, and reduces the severity of heart failure in patients with compensated HFrEF with concomitant mild to moderate COPD.
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