AimsThe long-term prognosis of patients with heart failure with preserved left ventricular ejection fraction (HFPEF) and coexistent chronic obstructive pulmonary disease (COPD) has not been previously investigated. The primary aim of this study was to determine whether the long-term prognosis of HFPEF patients with COPD differs from that of heart failure patients with reduced left ventricular ejection fraction (HFREF) and COPD. The secondary aim was to identify independent predictors of event-free survival in patients with HF and COPD.
Methods and resultsWe investigated 184 patients with coexistent HF and COPD. Heart failure with preserved left ventricular ejection fraction was present in 98 cases (53%) and HFREF in the remaining 86 cases (47%). Mean follow-up time was 731 + 369 days. Cardiovascular/pulmonary hospitalization or mortality occurred in 71 patients (39%). No significant difference was observed between the two study groups in terms of event-free survival (P ¼ 0.457), but event-free survival was found to be independently associated with New York Heart Association (NYHA) class [III vs. I, hazard ratio (HR) 2.92, 95% confidence interval (CI) 1.09-7.82], Global initiative for chronic Obstructive Lung Disease (GOLD) stage (III vs. I, HR 3.20, 95% CI 1.33-7.68), systemic hypertension (SHT; HR 2.99, 95% CI 1.41-6.33), and pulmonary hypertension (PH; HR 4.35, 95% CI 1.95-9.68).
ConclusionIn HF patients with coexisting COPD, cardiovascular and pulmonary event-free survival of HFPEF was found to be similar to that of HFREF over 3 years follow-up. Furthermore, severe NYHA class, severe GOLD stage, SHT, and PH were found to be independent predictors of event-free survival.--
SummaryEpicardial adipose tissue (EAT) is presumed to play an important role in the development of coronary artery disease (CAD). The purpose of our study was to examine the infl uence of EAT volume measured by cardiac CT on the severity and presence of CAD. A total of 209 subjects (114 normal subjects and 95 patients with CAD) underwent cardiac and abdominal computed tomography (CT) scan before diagnostic coronary angiography. Pixels with a threshold range of -190 to -30 Hounsfi eld units were identifi ed as EAT. CAGE ≥ 20, CAGE ≥ 50, and modifi ed Gensini index were used to define the extent and severity of CAD. While there was no significant difference in BMI and WC between the two groups, the mean EAT volume was higher in the CAD group than in the normal subjects (102.4 ± 41.87 cm 3 versus 125.36 ± 47.64 cm 3 , P < 0.001). EAT was signifi cantly associated with CAGE ≥ 20, CAGE ≥ 50, and Gensini score by linear regression analyses after adjusting for age, gender, smoking, and alcohol use. The severity of CAD increased linearly with each tertile increase in EAT volume (P for trend < 0.05). Similarly, the coronary artery calcium (CAC) score was also increased with each increase in EAT tertile (P = 0.002). In multivariate logistic regression models, EAT and VAT were signifi cantly associated with the presence of CAD and CAC in age, gender, smoking, alcohol use, and BMI adjusted models. In conclusion, EAT volume measured by CT is associated with the presence and severity of CAD. EAT may give important information for risk evaluation in CAD. (Int Heart J 2014; 55: 197-203)
Thiazide-type diuretics are the most commonly used blood pressure (BP)-lowering drug for patients with uncomplicated hypertension. However, it has remained unclear whether hydrochlorothiazide (HCTZ) or chlorthalidone (CTD) shows better improvement in central aortic pressure. We conducted an open-label, randomized, prospective cross-over study with an 8-week active treatment (HCTZ of 25 mg with candesartan of 8 mg or CTD of 12.5 mg with candesartan of 8 mg) with a 4-week washout period (only candesartan during this period). Twenty-eight treatment-naïve patients of hypertension were enrolled (mean age: 50±9 years, male: 44.4%). Central aortic pressure, pulse wave velocity (PWV), augmentation index (AIx) and other BP-derived parameters were measured. After 8 weeks of active treatment, there was no significant difference in changes of central aortic pressure between HCTZ and CTD treatments (Δ=-14±8 vs. -16±7 mm Hg, P=0.645). However, CTD treatment showed a significant reduction in PWV compared with baseline (1321±194 vs. 1439±190 cm s(-1), P=0.007) and HCTZ treatment (Δ=-118±82 vs. Δ=5±72 cm s(-1), P=0.033), whereas HCTZ treatment showed a marginal, but not a significant reduction in AIx compared with baseline. In conclusion, CTD of 12.5 mg is as potent as HCTZ of 25 mg, when combined with candesartan of 8 mg, in lowering central aortic pressure. In addition, CTD treatment resulted in a significant reduction of PWV.
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