Project description:Heart failure (HF) and chronic obstructive pulmonary disease (COPD) comorbidity poses substantial diagnostic and therapeutic challenges in acute care settings. The specific role of pulmonary comorbidity in the treatment and outcomes of cardiovascular disease patients was not addressed in any short- or long-term prospective study. Both HF and COPD can be interpreted as systemic disorders associated with low-grade inflammation, endothelial dysfunction, vascular remodelling and skeletal muscle atrophy. HF is regularly treated as a broader cardiopulmonary syndrome utilising acute respiratory therapy. Based on observational data and clinical expertise, a management strategy of concurrent HF and COPD in acute settings is suggested. Concomitant use of beta2-agonists and beta-blockers in a comorbid cardiopulmonary condition seems to be safe and effective.
Project description:AimsChronic obstructive pulmonary disease (COPD) and heart failure (HF) are prevalent comorbidities associated with significant morbidity/mortality. We assessed prevalence of, patient profiles and outcomes associated with COPD across the ejection fraction (EF) spectrum.MethodsHF patients enrolled in the Swedish HF registry between 2005 and 2021 were considered. Multivariable logistic regression models were fitted to assess patient characteristics independently associated with COPD and Cox regression models for investigating the associations between COPD and outcomes, that is, morbidity/mortality.ResultsAmong 97 904 HF patients, COPD prevalence was 13%, highest in HF with preserved EF [HFpEF: 16%, HF with mildly reduced EF (HFmrEF): 12%, HF with reduced EF (HFrEF): 11%]. Key patient characteristics independently associated with a diagnosis of COPD included higher EF, female sex, smoking, obstructive sleep disorder, peripheral artery disease, a lower educational level, more severe HF, more likely mineralocorticoid receptor antagonist and diuretic use but less likely use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers/angiotensin-receptor-neprilysin inhibitors (not in HFrEF), beta-blockers, HF device therapies, and follow-up in HF nurse-led clinics. COPD was independently associated with a 15% higher risk of cardiovascular (CV) death/HF hospitalization [hazard ratio: 1.15 (95% confidence interval: 1.11-1.18)], CV death, non-CV death, all-cause death and HF hospitalizations, regardless of EF.ConclusionsCOPD was present in every eight patient with HF, and more common with preserved EF. Patients with COPD had more severe HF, heavier comorbidity burden and worse morbidity/mortality regardless of EF. Our results call for improved diagnostic and management strategies in patients with HF and COPD.
Project description:AimsChronic obstructive pulmonary disease (COPD) and heart failure (HF) are increasingly frequent in Asia and commonly coexist in patients. However, the prevalence of COPD among Asian patients with HF and its impact on HF treatment are unclear.Methods and resultsWe compared clinical characteristics and treatment approaches between patients with or without a history of COPD, before and after 1:2 propensity matching (for age, sex, geographical region, income level, and ethnic group) in 5232 prospectively recruited patients with HF and reduced ejection fraction (HFrEF, <40%) from 11 Asian regions (Northeast Asia: South Korea, Japan, Taiwan, Hong Kong, and China; South Asia: India; Southeast Asia: Thailand, Malaysia, Philippines, Indonesia, and Singapore). Among the 5232 patients with HFrEF, a history of COPD was present in 8.3% (n = 434), with significant variation in geography (11.0% in Northeast Asia vs. 4.7% in South Asia), regional income level (9.7% in high income vs. 5.8% in low income), and ethnicity (17.0% in Filipinos vs. 5.2% in Indians) (all P < 0.05). Use of mineralocorticoid receptor antagonists and diuretics was similar between groups, while usage of all β-blockers was lower in the COPD group than in the non-COPD group in the overall (66.3% vs. 79.9%) and propensity-matched cohorts (66.3% vs. 81.7%) (all P < 0.05). A striking exception was the Japanese cohort in which β-blocker use was high in COPD and non-COPD patients (95.2% vs. 91.2%).ConclusionsThe prevalence of COPD in HFrEF varied across Asia and was related to underuse of β-blockers, except in Japan.
Project description:AimsThis study aims to explore possible associations between self-efficacy and healthcare and drug expenditures (i.e. direct costs) in patients with chronic heart failure (CHF) or chronic obstructive pulmonary disease (COPD) in a study investigating the effects of person-centred care delivered by telephone.Methods and resultsThis exploratory analysis uses data from an open randomized controlled trial conducted between January 2015 and November 2016, providing remote person-centred care by phone to patients with CHF, COPD, or both. Patients hospitalized due to worsening of CHF or COPD were eligible for the study. Randomization was based on a computer-generated list, stratified for age ≥ 75 and diagnosis. At a 6 month follow-up, 118 persons remained in a control group and 103 in an intervention group. The intervention group received person-centred care by phone as an addition to usual care. Trial data were linked to register data on healthcare and drug use. Group-based trajectory modelling was applied to identify trajectories for general self-efficacy and direct costs. Next, associations between self-efficacy trajectories and costs were assessed using regression analysis. Five trajectories were identified for general self-efficacy, of which three indicated different levels of increasing or stable self-efficacy, while two showed a decrease over time in self-efficacy. Three trajectories were identified for costs, indicating a gradient from lower to higher accumulated costs. Increasing or stable self-efficacy was associated with lower direct costs (P = 0.0013).ConclusionsThe findings show that an increased or sustained self-efficacy is associated with lower direct costs in patients with CHF or COPD. Person-centred phone contacts used as an add-on to usual care could result in lower direct costs for those with stable or increasing self-efficacy.
Project description:Objective. To detect chronic heart failure in elderly patients with a registered diagnosis of chronic obstructive pulmonary disease (COPD) treated in Swedish primary health care using natriuretic peptide NT-proBNP. Design. A cross-sectional study. Setting. Two primary health care centres in southeastern Sweden each with about 9000 listed patients. Subjects. Patients aged 65 years and older with a registered diagnosis of COPD. Main Outcome Measures. Percentage of patients with elevated NT-proBNP, percentage of patients with abnormal left ventricular function assessed by echocardiography, and association between elevated NT-proBNP and symptoms, signs, and electrocardiography. Results. Using NT-proBNP threshold of 1200 pg/mL, we could detect and confirm chronic heart failure in 5.6% of the study population with concurrent COPD. An elevated level of NT-proBNP was only associated with nocturia and abnormal electrocardiography. Conclusions. We found considerably fewer cases of heart failure in patients with COPD than could be expected from the results of previous studies. Our study shows the need for developing improved strategies to enhance the validity of a suspected heart failure diagnosis in patients with COPD.
Project description:ObjectivesThe purposes of this study were to determine why chronic obstructive pulmonary disease (COPD) is associated with heart failure (HF). Specific objectives included whether COPD is associated with myocardial fibrosis, whether myocardial fibrosis is associated with hospitalization for HF and death in COPD, and whether COPD and smoking are associated with myocardial inflammation.BackgroundCOPD is associated with HF independent of shared risk factors. The underlying pathophysiological mechanism is unknown.MethodsA prospective, multicenter, longitudinal cohort study of 572 patients undergoing cardiac magnetic resonance (CMR), including 450 patients with COPD and 122 age- and sex-matched patients with a median: 726 days (interquartile range: 492 to 1,160 days) follow-up. Multivariate analysis was used to examine the relationship between COPD and myocardial fibrosis, measured using cardiac magnetic resonance (CMR). Cox regression analysis was used to examine the relationship between myocardial fibrosis and outcomes; the primary endpoint was composite of hospitalizations for HF or all-cause mortality; secondary endpoints included hospitalizations for HF and all-cause mortality. Fifteen patients with COPD, 15 current smokers, and 15 healthy volunteers underwent evaluation for myocardial inflammation, including ultrasmall superparamagnetic particles of iron oxide CMR.ResultsCOPD was independently associated with myocardial fibrosis (p < 0.001). Myocardial fibrosis was independently associated with the primary outcome (hazard ratio [HR]: 1.14; 95% confidence interval [CI]: 1.08 to 1.20; p < 0.001), hospitalization for HF (HR: 1.25 [95% CI: 1.14 to 1.36]); p < 0.001), and all-cause mortality. Myocardial fibrosis was associated with outcome measurements more strongly than any other variable. Acute and stable COPD were associated with myocardial inflammation.ConclusionsThe associations between COPD, myocardial inflammation and myocardial fibrosis, and the independent prognostic value of myocardial fibrosis elucidate a potential pathophysiological link between COPD and HF.
Project description:Diaphragm muscles in Chronic Obstructive Pulmonary Disease (COPD) patients undergo an adaptive fast to slow transformation that includes cellular adaptations. This project studies the signaling mechanisms responsible for this transformation. Keywords: other
Project description:BackgroundDifferentiating heart failure from chronic obstructive pulmonary disease (COPD) in a patient presenting with breathlessness is difficult but may have implications for outcome. We investigated the prognostic impact of diagnoses of COPD and/or heart failure in consecutive patients presenting to a secondary care clinic with breathlessness.MethodsIn patients with left ventricular systolic dysfunction (LVSD) by visual estimation, N-terminal pro B-type natriuretic peptide (NTproBNP) levels and spirometry were evaluated (N = 4986). Heart failure was defined as either LVSD worse than mild (heart failure with reduced ejection fraction) or LVSD mild or better and raised NTproBNP levels (> 400 ng/L) (heart failure with normal ejection fraction). COPD was defined as forced expiratory volume in 1 s (FEV1) to forced vital capacity (FVC) ratio < 0.7. The primary outcome was all-cause mortality.Results1764 (35%) patients had heart failure alone, 585 (12%) had COPD alone, 1751 (35%) had heart failure and COPD, and 886 (18%) had neither. Compared to patients with neither diagnosis, those with COPD alone [hazard ratio (HR) = 1.84 95% confidence interval (CI) 1.40-2.43], heart failure alone [HR = 4.40 (95% CI 3.54-5.46)] or heart failure and COPD [HR = 5.44 (95% CI 4.39-6.75)] had a greater risk of death. COPD was not associated with increased risk of death in patients with heart failure on a multivariable analysis.ConclusionWhile COPD is associated with increased risk of death compared to patients with neither heart failure nor COPD, it has a negligible impact on prognosis amongst patients with heart failure.
Project description:BACKGROUND:The prognostic value of chronic obstructive pulmonary disease (COPD) as a comorbidity in heart failure has been well documented. However, the role of pulmonary function indices in patients with heart failure and preserved ejection fraction (HFpEF) remains to be elucidated. METHODS:Subjects with HFpEF received pulmonary function tests and echocardiogram. Total lung capacity (TLC), residual volume (RV), forced expiratory flow rate between 25% and 75% of vital capacity (FEF25-75), forced expiratory volume in the 1st second (FEV1), forced vital capacity (FVC), and vital capacity (VC) were measured. Echocardiographic indices, including pulmonary artery systolic pressure (PASP), the ratio of early ventricular filling flow velocity to the septal mitral annulus tissue velocity (E/e'), and left ventricular mass (LVM), were recorded. National Death Registry was linked for the identification of mortality. RESULTS:A total of 1194 patients (72.4±13.2 years, 59% men) were enrolled. PASP, E/e' and LVM were associated with either obstructive (RV/TLC, FEV1 and FEF25-75) or restrictive (VC and TLC) ventilatory indices. During a mean follow-up of 23.0±12.8 months, 182 patients died. Subjects with COPD had a lower survival rate than those without COPD. While VC, FVC, RV/TLC, and FEV1 were all independently associated with all-cause mortality in patients without COPD, only FEF25-75 was predictive of outcomes in those with COPD. CONCLUSIONS:The abnormalities of pulmonary function were related to the cardiac hemodynamics in patients with HFpEF. In addition, these ventilatory indices were independently associated with long-term mortality, especially in those without COPD.