Prognostic Value of the Three-Dimensional Right Ventricular Ejection Fraction in Patients With Asymptomatic Aortic Stenosis

Background: The right ventricular (RV) function is an important prognostic marker of asymptomatic aortic stenosis (AS). However, previous publications have not addressed the additive value of conventional RV parameters over left heart parameters. Whether three-dimensional echocardiography (3DE)-derived RV ejection fraction (RVEF) has prognostic utility independent of 3DE derived left heart parameters is also unknown. We investigated the prognostic utility of 3DE RVEF in patients with asymptomatic AS.Methods: We retrospectively selected 392 asymptomatic AS patients. RVEF, left ventricular ejection fraction (LVEF) and left atrial volumes (LAVs) were measured using 3DE datasets. We determined the association of those parameters, as well as of aortic valve replacement (AVR), and Charlson's comorbidity index with cardiac events. We also analyzed whether RVEF has incremental value over two-dimensional echocardiography (2DE) RV parameters.Results: During a median follow-up of 27 months, 57 patients developed cardiac events, and 68 patients received AVR. Univariate Cox proportional hazard analysis revealed that RVEF was associated with cardiac events (p < 0.001). Multivariate analysis revealed that RVEF was significantly associated with cardiac events (p < 0.001) even after adjusting for AVR, Charlson's comorbidity index, LVEF, LAV, E/e', and indexed aortic valve area (iAVA). An incremental value of RVEF over left heart parameters was also demonstrated using a nested regression model. Classification and regression-tree analysis selected RVEF first with a cut-off value of 41%. RVEF had incremental value over iAVA, LVEF, and 2DE conventional RV parameters for its association with future outcomes.Conclusions: 3DE RVEF had significant prognostic value even after adjusting for comorbidities, left heart parameters, and conventional 2DE RV parameters in asymptomatic aortic stenosis.

Peak Apical Recoil Rate is a Simplified Index of Left Ventricular Untwist: Validation and Application for Assessment of Diastolic Function in Children

AimsTo simplify measurement of untwist by measuring the recoil rate of LV apex only, to validate and apply peak apical recoil rate (PARR) as an index of diastolic dysfunction (DD) in pediatric subjects during increased and decreased lusitropic states. Methods and ResultsWe recruited 153 healthy subjects (mean age 13.8+2.9 years), of whom 48 performed straight leg raising exercise and an additional 46 patients (mean 8.4+5.6 years) with documented pulmonary capillary wedge pressures (PCWP) (validation cohort). In addition, we studied 16 dilated cardiomyopathy patients (mean age 9.5+6.3years) (application cohort). PARR and isovolumic relaxation time (IVRT) were compared to PCWP. Both PARR and PARR normalized by heart rate (nPARR) were excellent in detecting patient with PCWP >12 mmHg and greatly superior to IVRT in this respect (AUC: 0.98, 95% CI [0.96, 1.0] vs. AUC: 0.7 95%CI [0.54,0.86]). In DCM patients, PARR and nPARR were greatly decreased compared to controls (-38.58+18.59º/s vs -63.07+16.35º /s, p< 0.001) and (-0.43+0.20 º/ s/min vs -0.83+0.28º/s/min, p<0.0001) but increased with straight leg raising exercise (-59.4+19.4º/s vs -97.82+39.0 º/s, p<0.01) and -0.85+0.36 vs -1.4+0.62 º/s/min (p< 0.0001). The intra-observer and inter-observer intraclass correlation (ICC) coefficients were 0.95 and 0.88, respectively.ConclusionPARR successfully detected increased and decreased lusitropic states and was not affected by age when normalized with heart rate. Both PARR and nPARR are superior to IVRT in their correlation with PCWP and offer incremental value over traditional indices of DD. This highly reproducible parameter may potentially serve as a useful index of elevated PCWP in children.

COVID-19 Modulates Inflammatory and Renal Markers That May Predict Hospital Outcomes among African American Males

Background and Objectives: African Americans and males have elevated risks of infection, hospitalization, and death from SARS-CoV-2 in comparison with other populations. We report immune responses and renal injury markers in African American male patients hospitalized for COVID-19. Methods: This was a single-center, retrospective study of 56 COVID-19 infected hospitalized African American males 50+ years of age selected from among non-intensive care unit (ICU) and ICU status patients. Demographics, hospitalization-related variables, and medical history were collected from electronic medical records. Plasma samples collected close to admission (≤2 days) were evaluated for cytokines and renal markers; results were compared to a control group (n = 31) and related to COVID-19 in-hospital mortality. Results: Among COVID-19 patients, eight (14.2%) suffered in-hospital mortality; seven (23.3%) in the ICU and one (3.8%) among non-ICU patients. Interleukin (IL)-18 and IL-33 were elevated at admission in COVID-19 patients in comparison with controls. IL-6, IL-18, MCP-1/CCL2, MIP-1α/CCL3, IL-33, GST, and osteopontin were upregulated at admission in ICU patients in comparison with controls. In addition to clinical factors, MCP-1 and GST may provide incremental value for risk prediction of COVID-19 in-hospital mortality. Conclusions: Qualitatively similar inflammatory responses were observed in comparison to other populations reported in the literature, suggesting non-immunologic factors may account for outcome differences. Further, we provide initial evidence for cytokine and renal toxicity markers as prognostic factors for COVID-19 in-hospital mortality among African American males.

799 Biventricular dysfunction and lung congestion in athletes on anabolic androgenic steroids: a speckle tracking and stress lung echocardiography analysis

Aims The real effects of the chronic consumption of anabolic–androgenic steroids (AAS) on cardiovascular structures are subjects of intense debate. Aim of the study was to detect by speckle tracking echocardiography (STE) right ventricular (RV) and left ventricular (LV) dysfunction at rest and during exercise stress echocardiography (ESE) in athletes abusing AAS. Methods and results 115 top-level competitive bodybuilders were selected (70 males), including 65 athletes misusing AAS for at least 5 years (users), 50 anabolic-free bodybuilders (non-users), compared to 50 age- and sex-matched healthy sedentary controls. Standard Doppler echocardiography, STE analysis, and lung ultrasound at rest and at peak supine-bicycle ESE were performed. Athletes showed increased LV mass index, wall thickness, and RV diameters compared with controls, whereas LV ejection fraction was comparable within the groups. LA volume index, LV and RV strain, and LV E/Em were significantly higher in AAS users. Users showed more B-lines during stress (median 4.4 vs. 1.25 in controls and 1.3 in non-users, P &lt; 0.01 vs. users). By multivariable analyses, LV E/Ea (beta coefficient = 0.35, P &lt; 0.01), PASP (beta = 0.43, P &lt; 0.001) at peak effort, and number of weeks of AAS use per year (beta = 0.45, P &lt; 0.001) emerged as the only independent determinants of resting RV lateral wall peak systolic two-dimensional strain. In addition, a close association between resting RV myocardial function and VO2 peak during ESE was evidenced (P &lt; 0.001), with a powerful incremental value with respect to clinical and standard echocardiographic data. Conclusions STE represents a promising technique to assess RV myocardial function in athletes abusing steroids. AAS users showed a more impaired RV deformation, closely associated with reduced functional capacity during physical effort, and—during exercise—more pulmonary congestion.

Incremental Value of Genotype Bins over the HAS-BLED Score for the Prediction of Bleeding Risk in Warfarin-Treated Patients with Atrial Fibrillation

Background. This study aimed to analyse the role of the HAS-BLED score with the addition of genotype bins for bleeding risk prediction in warfarin-treated patients with atrial fibrillation (AF). Methods and Results. Consecutive patients with AF on initial warfarin treatment were recruited. For each patient, CYP2C9 ∗ 3 and VKORC1-1639 A/G genotyping was performed to create 3 genotype functional bins. The predictive values of the HAS-BLED score with or without the addition of genotype bins were compared. According to the carrier status of the genotype bins, the numbers of normal, sensitive, and highly sensitive responders among 526 patients were 64 (12.17%), 422 (80.23%), and 40 (7.60%), respectively. A highly sensitive response was independently associated with clinically relevant bleeding (HR: 3.85, 95% CI: 1.88–7.91, P = 0.001 ) and major bleeding (HR:3.75, 95% CI: 1.17–11.97, P = 0.03 ). With the addition of genotype bins, the performance of the HAS-BLED score for bleeding risk prediction was significantly improved (c-statistic from 0.60 to 0.64 for clinically relevant bleeding and from 0.64 to 0.70 for major bleeding, P < 0.01 ). Using the integrated discriminatory, net reclassification improvement, and decision curve analysis, the HAS-BLED score plus genotype bins could perform better in predicting any clinically relevant bleeding than the HAS-BLED score alone. Conclusions. Genotypes have an incremental predictive value when combined with the HAS-BLED score for the prediction of clinically relevant bleeding in warfarin-treated patients with AF.

The Impostor Phenomenon: Toward a Better Understanding of the Nomological Network and Gender Differences

The impostor phenomenon (IP) refers to the tendency to perceive oneself as intellectually incompetent and to attribute one’s own success to effort-related or external factors, such as fortunate circumstances. The present study (N=209) aimed to contribute to open questions regarding gender differences in the IP and the nomological network of the IP. The results show that the consistently found key correlates of the IP, that is, lower self-esteem and higher neuroticism, could also play a role in explaining why women report higher impostor feelings than men in many studies. Moreover, the results suggest that IP is characterized by the more maladaptive, socially prescribed perfectionism, which is related to the belief that others expect perfection from oneself, whereas self-oriented perfectionism, which is characterized by a critical view on oneself, plays a smaller role in differences in the IP. Finally, a strong association with the sandbagging construct challenges the conceptualization of the IP as a genuine doubt about one’s own competence, because similarly to IP, sandbaggers present themselves negatively to others, but do so for very strategic reasons in order to create a low expectation base in other individuals. Regression analysis was used to assess the incremental value of the personality factors in explaining variance in the IP. It was found that sandbagging and IP are highly related but not interchangeable.