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Background: Sodium-glucose cotransporter 2 inhibitors reduce the risk of heart failure hospitalization and cardiovascular death in patients with heart failure and reduced ejection fraction (HFrEF). However, their effects on cardiac structure and function in HFrEF are uncertain. Methods: We designed a multicenter, randomized, double-blind, placebo-controlled trial (the SUGAR-DM-HF trial [Studies of Empagliflozin and Its Cardiovascular, Renal and Metabolic Effects in Patients With Diabetes Mellitus, or Prediabetes, and Heart Failure]) to investigate the cardiac effects of empagliflozin in patients in New York Heart Association functional class II to IV with a left ventricular (LV) ejection fraction ≤40% and type 2 diabetes or prediabetes. Patients were randomly assigned 1:1 to empagliflozin 10 mg once daily or placebo, stratified by age ( Results: From April 2018 to August 2019, 105 patients were randomly assigned: mean age 68.7 (SD, 11.1) years, 77 (73.3%) male, 82 (78.1%) diabetes and 23 (21.9%) prediabetes, mean LV ejection fraction 32.5% (9.8%), and 81 (77.1%) New York Heart Association II and 24 (22.9%) New York Heart Association III. Patients received standard treatment for HFrEF. In comparison with placebo, empagliflozin reduced LV end-systolic volume index by 6.0 (95% CI, –10.8 to –1.2) mL/m 2 ( P =0.015). There was no difference in LV global longitudinal strain. Empagliflozin reduced LV end-diastolic volume index by 8.2 (95% CI, –13.7 to –2.6) mL/m 2 ( P =0.0042) and reduced N-terminal pro-B-type natriuretic peptide by 28% (2%–47%), P =0.038. There were no between-group differences in other cardiovascular magnetic resonance measures, diuretic intensification, Kansas City Cardiomyopathy Questionnaire Total Symptom Score, 6-minute walk distance, or B-lines. Conclusions: The sodium-glucose cotransporter 2 inhibitor empagliflozin reduced LV volumes in patients with HFrEF and type 2 diabetes or prediabetes. Favorable reverse LV remodeling may be a mechanism by which sodium-glucose cotransporter 2 inhibitors reduce heart failure hospitalization and mortality in HFrEF. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT03485092.

Background Current guidelines do not recommend routine assessment of right atrial volume due to the lack of standardized data. Three-dimensional wall-motion tracking (3D-WMT) is a new technology that allows us to calculate volumes without any geometric assumptions. The aim of this study was to define the indexed reference values for two-dimensional echocardiography (2D-echo) and 3D-WMT in adult healthy population and to assess the intermethod, intra- and interobserver agreement. Methods Prospective study. Nonselected healthy subjects were enrolled. Every patient underwent a 2D-echo and a 3D-WMT examination. 2D-echo right atrial volume was obtained by using the area-length method (A-L) from four- and two-chamber view. 3D-echo volumes were assessed by 3D-WMT. Values were indexed by the patient's body surface area. Results Sixty consecutive healthy subjects were enrolled. Mean age was 57 ± 12-years old and 27 patients (45%) were male. Average indexed right atrial volume obtained by 2D-echo and 3D-echo was 16.76 ± 8.15 mL/m2 and 19.05 ± 6.87 mL/m2, respectively. Univariate linear regression analysis between 2D-echo and 3D-echo right atrial volumes shows a weak correlation between right atrial volume obtained with 2D-echo compared with 3D-WMT (r = 0.29, CI 95% 0.029–0.66, P = 0.033). The agreement analysis shows a similar result (intraclass correlation coefficient [ICC] = 0.28). The intra- and interobserver agreement analysis showed a better agreement when using 3D-WMT. Conclusions This is the first study that reports the reference indexed right atrial volume values by means of 2D-echo and 3D-echo in healthy population. 3D-WMT is a feasible and reproducible method to determine right atrial volume.

Background and Aim: Since the appearance of transesophageal echocardiography, the long-term prognosis of patients with negative blood culture infective endocarditis (NBCIE) has been found to be similar to that of patients with positive blood culture infective endocarditis (PBCIE). Nevertheless, the prognostic implications of NBCIE in the elderly (>65 years) has not, to date, been well documented. Our aim was to study the long-term prognosis of elderly patients with NBCIE and compare it with that of elderly patients with PBCIE. Methods: Our study group was composed of 60 consecutive patients >65 years old with a diagnosis of IE (confirmed by vegetation analysis or following Duke’s criteria). Every patient underwent transthoracic and transesophageal echocardiography. Fifty patients (83.3%) had PBCIE and 10 (16.7%) had NBCIE. All patients were followed up long-term, and the study end point was a composite one of death or need for valvular heart surgery. Results: Mean age was 72.9 ± 5 years (56.7% male). Similar clinical and echocardiographic characteristics were found in both groups. Global mortality, need for surgery, predisposing factors and infection location were also similar in both groups. In addition, no differences were found in the long-term prognosis (log rank p = 0.29). Conclusions: In our series, the long-term prognosis in elderly patients with IE is independent of the presence of a negative or positive blood culture. Thus, age cannot be considered an independent risk factor of negative outcome in elderly patients with NBCIE.

Objective: Pulmonary arterial hypertension (PAH) is a progressive, fatal disease with average survival of less than 3 years if left untreated. It is most common in patients infected with HIV. Although the pathogenesis in this population is not fully understood, it is thought that HIV infection, through the immune response and release of different inflammatory mediators such as endothelin-1, may contribute directly to endothelial damage. Our objective was to quantify endothelin-1 levels in HIV-infected patients and determine whether or not there is an association between this marker and PAH. Design: A case-control study in patients attending an infectious diseases clinic. Methods: The sample was composed of 79 patients divided into three groups: 23 HIV patients with PAH (HIV+/PAH+), 45 HIV patients without PAH (HIV+/PAH−) and a control group of 11 healthy individuals. The ratio between the HIV+/PAH− and HIV+/PAH+ groups was 2 : 1. Patients were matched by age, sex, risk group and viral load; the control group by age and sex. All patients had blood taken for endothelin-1 plasma quantification. Results: We found lower endothelin-1 levels in the controls than in the HIV+/PAH− group [0.71 pg/ml (interquartile range, IQR 0.54–0.94) vs. 1.13 pg/ml (IQR 0.87–1.38); P = 0.005] and the HIV+/PAH+ cohort [1.16 pg/ml (IQR 0.86–2.37); P = 0.003]. Patients with severe PAH had higher endothelin-1 levels [2.94 pg/ml (IQR 1.81–6.33)] than patients with mild and moderate PAH. Conclusion: Plasma endothelin-1 levels are higher in HIV patients with PAH than in the HIV-noninfected population and levels increase with the severity of the PAH.

SPONTANEOUS CORONARY ARTERY DISSECTION (SCAD) REPRESENTS A DIAGNOSTIC CHALLENGE [(1,2)][1]. In this study, we used a combined imaging strategy, intravascular ultrasound (IVUS) and optical coherence tomography (OCT), in 8 patients with SCAD. The diagnosis of SCAD required the visualization of an

Background Pulmonary arterial hypertension (PAH) is uncommon among HIV-positive patients. However, it is a potentially life-threatening condition. Transthoracic echocardiography (TTE) is a noninvasive tool validated for PAH screening. The aim of our study was to establish the prevalence and factors associated with PAH in HIV-infected patients. Methods Consecutive HIV-infected individuals attended at one HIV reference clinic in Madrid, Spain, during year 2011 were examined. Demographics and clinical data were recorded and a Doppler echocardiography was performed in all individuals. PAH was considered when right ventricular pressure was more than 35 mmHg (mild if 65 mmHg). Results Three hundred and ninety-two individuals were examined (83.4% men, median age 47 years, 53% were men who have sex with men and 53% former intravenous drug addicts). Overall, 84% were on HAART, 76% had undetectable HIV viral load and median CD4 cell counts were 577 cells/μl. Cardiovascular risk factors were smoking 50%, arterial hypertension 16% and diabetes mellitus 9%. A total of 28.5 and 4.8% had chronic hepatitis C (CHC) and 4.8% chronic hepatitis B, respectively. PAH was diagnosed in 9.9% of patients (6.4% mild, 2.8% moderate and 0.8% severe). Multivariate logistic regression analysis [odds ratio (OR), 95% confidence interval (CI)] showed that detectable plasma HIV-RNA [OR, 3.3; 95% CI, 1.04-10], CHC [OR, 3.1; 95% CI 1.2-8.2] and female sex [OR, 2.9; 95% CI, 1.04-8.3] were independently associated with PAH. Conclusion The prevalence of PAH HIV-infected patients on regular follow-up approaches 10%, being moderate-severe in nearly 4% of cases. Patients with CHC and/or uncontrolled HIV replication exhibit a higher risk of PAH.

This study sought to assess the long-term clinical outcome of patients with spontaneous coronary artery dissection (SCD) managed with a conservative strategy.SCD is a rare, but challenging, clinical entity.A prospective protocol, including a conservative management strategy, was followed. Revascularization was only considered in cases with ongoing/recurrent ischemia. Inflammatory/immunologic markers were systematically obtained.Forty-five consecutive patients (incidence 0.27%) were studied during a 6-year period. Of these, 27 patients (60%) had "isolated" SCD (I-SCD), and 18 had SCD associated with coronary artery disease (A-SCD). Age was 53 ± 11 years, and 26 patients were female. Most patients presented with an acute myocardial infarction. SCD had a diffuse angiographic pattern (length: 31 ± 23 mm). In 11 patients, the diagnosis was confirmed by intracoronary imaging techniques. Sixteen patients (35%) required revascularization during initial admission. One patient died after surgery, but no additional patient experienced recurrent myocardial infarction. No significant inflammatory/immunologic abnormalities were detected. At follow-up (median 730 days), only 3 patients presented with adverse events (1 died of congestive heart failure, and 2 required revascularization). No patient experienced a myocardial infarction or died suddenly. Event-free survival was similar (94% and 88%, respectively) in patients with I-SCD and A-SCD. Notably, at angiographic follow-up, spontaneous "disappearance" of the SCD image was found in 7 of 13 (54%) patients.In this large prospective series of consecutive patients with SCD, a "conservative" therapeutic strategy provided excellent long-term prognosis. Clinical outcome was similar in patients with I-SCD and A-SCD. The natural history of SCD includes spontaneous healing with complete resolution.

The echocardiographic technology known as three-dimensional wall motion tracking offers three-dimensional images of the myocardium and provides multiple measures of deformation, one of which is known as "area strain" (AS), which combines left ventricular longitudinal and circumferential deformations. Our aim was to describe the normal maximum systolic reference AS value in a sample of healthy subjects. Sixty consecutive subjects without known cardiovascular risk factors or diseases were enrolled, and left ventricular AS was measured. Overall mean AS was -38.87 ± 5.89%. Mean values at the level of the basal, middle, and apical segments were -38.42 ± 7.58%, -38.74 ± 6.34%, and -43.18 ± 12.81%, respectively. Thus, our results show for the first time the reference values for AS in healthy subjects.

Distortion of the terminal portion of the QRS in the initial electrocardiogram (ECG) is a strong predictor of adverse outcome in myocardial infarction. Our purpose is to assess the relationship of distortion of QRS and other ECG characteristics with older age.We analysed 634 consecutive patients (age 62.6 +/- 13.7, 77% male) admitted in the first 12 hours of ST-elevation myocardial infarction. Two groups of age were defined:75 years-old andor= 75 years-old. Additionally, we defined two ECG groups according to the presence of ST segment elevation with distortion of the terminal portion of the QRS in two or more adjacent leads (QRS+) or the absence of this pattern (QRS-). Older people had more often QRS+ (30% vs. 20%, p = 0.023). The older group with QRS+ had an in-hospital mortality of 18%, vs. 7% with QRS- (p = 0.04), and an incidence of major adverse events of 40% vs. 14% (p = 0.002). In the multivariate analysis, ageor= 75 years was an independent predictor of distortion of the QRS (odds ratio 2.1, 1.2-4.9, p = 0.016).The distortion of the terminal portion of the QRS in myocardial infarction is more frequent in elderly people, and is significantly related to adverse prognosis. This ECG finding can be helpful to promptly stratify the risk in elderly patients.

An asymptomatic 55-year-old man with a previous history of hypertension and dyslipidaemia was referred to our clinic as a result of the finding of an enlarged cardiac silhouette in a routine chest radiography. His physical examination and electrocardiogram was unremarkable. Transthoracic echocardiogram revealed …