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The long COVID-19 syndrome has been recently described and some reports have suggested that acute pericarditis represents important manifestation of long COVID-19 syndrome. The aim of this study was to identify the prevalence and clinical characteristics of patients with long COVID-19, presenting with acute pericarditis.We retrospectively included 180 patients (median age 47 years, 62% female) previously diagnosed with COVID-19, exhibiting persistence or new-onset symptoms ≥12 weeks from a negative naso-pharyngeal SARS CoV2 swamp test. The original diagnosis of COVID-19 infection was determined by a positive swab. All patients had undergone a thorough physical examination. Patients with suspected heart involvement were referred to a complete cardiovascular evaluation. Echocardiography was performed based on clinical need and diagnosis of acute pericarditis was achieved according to current guidelines.Among the study population, shortness of breath/fatigue was reported in 52%, chest pain/discomfort in 34% and heart palpitations/arrhythmias in 37%. Diagnosis of acute pericarditis was made in 39 patients (22%). Mild-to-moderate pericardial effusion was reported in 12, while thickened and bright pericardial layers with small effusions (5 mm) with or without comet tails arising from the pericardium (pericardial B-lines) in 27. Heart palpitations/arrhythmias (OR:3.748, p = 0.0030), and autoimmune disease and allergic disorders (OR:4.147, p = 0.0073) were independently related to the diagnosis of acute pericarditis, with a borderline contribution of less likelihood of hospitalization during COVID-19 (OR: 0.100, p = 0.0512).Our findings suggest a high prevalence of acute pericarditis in patients with long COVID-19 syndrome. Autoimmune and allergic disorders, and palpitations/arrhythmias were frequently associated with pericardial disease.

The emergence of the Coronavirus Disease 2019 (COVID-19) pandemic has brought forth various clinical manifestations and long-term complications, including a condition known as long COVID. Long COVID refers to a persistent set of symptoms that continue beyond the acute phase of the disease. This study investigated the risk factors and the utility of spiroergometry parameters for diagnosing patients with long COVID symptoms. The 146 patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with normal left ventricular ejection fraction and without respiratory diseases were included and divided into two groups: the group demonstrating long COVID symptoms [n = 44] and the group without long COVID symptoms [n = 102]. The clinical examinations, laboratory test results, echocardiography, non-invasive body mass analysis, and spiroergometry were evaluated. ClinicalTrials.gov Identifier: NCT04828629. Patients with long COVID symptoms had significantly higher age [58 (vs.) 44 years; p < 0.0001], metabolic age [53 vs. 45 years; p = 0.02)], left atrial diameter (LA) [37 vs. 35 mm; p = 0.04], left ventricular mass index (LVMI) [83 vs. 74 g/m2, p = 0.04], left diastolic filling velocity (A) [69 vs. 64 cm/s, p = 0.01], the ratio of peak velocity of early diastolic transmitral flow to peak velocity of early diastolic mitral annular motion (E/E’) [7.35 vs. 6.05; p = 0.01], and a lower ratio of early to late diastolic transmitral flow velocity (E/A) [1.05 vs. 1.31; p = 0.01] compared to the control group. In cardiopulmonary exercise testing (CPET), long COVID patients presented lower forced vital capacity (FVC) [3.6 vs. 4.3 L; p < 0.0001], maximal oxygen consumption measured during incremental exercise indexed per kilogram (VO2max) [21 vs. 23 mL/min/kg; p = 0.04], respiratory exchange ratio (RER) [1.0 vs. 1.1; p = 0.04], forced expiratory volume in one second (FEV1) [2.90 vs. 3.25 L; p = 0.04], and a higher ratio of forced expiratory volume in one second to forced vital capacity (FEV1/FVC%) [106 vs. 100%; p = 0.0002]. The laboratory results pointed out that patients with long COVID symptoms also had a lower rate of red blood cells (RBC) [4.4 vs. 4.6 × 106/uL; p = 0.01]; a higher level of glucose [92 vs. 90 mg/dL; p = 0.03]; a lower glomerular filtration rate (GFR) estimate by Modification of Diet in Renal Disease (MDRD) [88 vs. 95; p = 0.03]; and a higher level of hypersensitive cardiac Troponin T (hs-cTnT) [6.1 vs. 3.9 pg/mL; p = 0.04]. On the multivariate model, only FEV1/FVC% (OR 6.27, 95% CI: 2.64–14.86; p < 0.001) independently predicted the long COVID symptoms. Using the ROC analysis, the FEV1/FVC% ≥ 103 was the most powerful predictor of spiroergometry parameters (0.67 sensitive, 0.71 specific, AUC of 0.73; p < 0.001) in predicting the symptoms of long COVID. Spiroergometry parameters are useful in diagnosing long COVID and differentiating it from cardiovascular disease.

Aim. In patients with chronic heart failure (HF), the benefit of repeating the assessment of left ventricle (LV) systolic and diastolic function over time remains uncertain. We assessed the prognostic value of repeated echocardiographic assessment of LV filling pressure (LVFP) and its interaction with cardiac index (CI) in ambulatory patients with chronic HF and reduced ejection fraction (HFrEF)Methods and results. We enrolled 367 patients (age 68±11 years; 22% female) with chronic HFrEF. Patients underwent a clinical and echocardiographic examination at baseline and were re-evaluated after 6±3 months. The 2016 recommendations were used to estimate normal or increased LVFP. CI was evaluated as the product of LV outflow tract area and velocity-time integral multiplied by heart rate and divided by body surface area. After the second examination, patients were followed for a median of 30 months. The study endpoint included all-cause death and hospitalization for worsening HF. Patients who normalized LVFP or showed persistently normal LVFP at the follow-up examination had a significantly lower mortality rate than those with worsening or persistently raised LVFP. After further stratification by CI, patients with elevated LVFP and CI 2 had a further worse outcome than those with elevated LVFP and CI ≥ 2.0 L/min/m2. Multivariate survival analysis confirmed an independent prognostic impact of changes in LVFP, incremental to that of established clinical, laboratory and echocardiographic predictors. Conclusions. Repeated evaluation based on a full diastolic function assessment of LVFP and CI significantly improved risk stratification of stable HFrEF outpatients compared to baseline evaluation.

AIMS Inflammation plays a central role in the pathogenesis and clinical manifestations of atherosclerosis. Randomized controlled trials have investigated the potential benefit of colchicine in reducing cardiovascular (CV) events in patients with coronary artery disease (CAD) but produced conflicting results. The aim of this meta-analysis was to evaluate the efficacy and safety of colchicine in patients with CAD. METHODS We systematically searched selected electronic databases from inception until 10 December 2020. Primary clinical endpoints were: major adverse cardiac events; all-cause mortality; CV mortality; recurrent myocardial infarction; stroke; hospitalization; and adverse medication effects. Secondary endpoints were short-term effect of colchicine on inflammatory markers. RESULTS Twelve randomized controlled trials with a total of 13 073 patients with CAD (colchicine n = 6351 and placebo n = 6722) were included in the meta-analysis. At mean follow-up of 22.5 months, the colchicine group had lower risk of major adverse cardiac events (6.20 vs. 8.87%; P

Background and Aim: Dobutamine stress echocardiography (DSE) is a well-established noninvasive investigation for significant coronary artery disease (CAD). The aim of this study was to evaluate the accuracy of cardiac Doppler parameters in predicting CAD. Methods: We prospectively studied 103 consecutive patients with suspected CAD based on typical symptoms; 59 proved to have CAD, and 44 patients proved to have no-CAD (n = 44). All patients underwent a complete stress Doppler echocardiographic examination. Total isovolumic time (T-IVT) as a marker of cavity dyssynchrony and wall motion score index (WMSI) were also calculated. Results: At peak dobutamine stress, the compromised LV longitudinal excursion (MAPSE), systolic septal and lateral velocities (s’), and diastolic indices were more pronounced in the CAD patients compared with those without CAD, but LV dimension did not differ between groups (p > 0.05). The WMSI was higher and t-IVT more prolonged in patients with CAD (p < 0.01 for both). Similarly, the changes were more pronounced in patients with significant CAD compared with insignificant CAD. On multivariate model, Δ mean s’, OR 2.016 (1.610 to 3.190; p < 0.001), Δ E velocity OR 2.502 (1.179 to 1.108; p < 0.001), Δ t-IVT 2.206 (1.180 to 2.780; p < 0.001) and Δ WMSI OR 1.911 (1.401 to 3.001; p = 0.001) were the most powerful independent predictors of the presence of CAD, particularly when significant (>75%). Δ mean s’ < 5.0 was 85% sensitive, 89% specific with AUC 0.92. Respective values for Δ E velocity 4.5, 78%, 77% and 0.81 and for Δ FT ≥ 150 ms, 76%, 78% and 0.84 in predicating significant CAD. WMSI ≥ 0.7 was 75% sensitive, 77% specific with AUC of 0.81 in predicting significant CAD. The accuracy of DSE was higher in significant CAD compared to insignificant CAD (80% vs. 74%; p = 0.03). Conclusions: Compromised LV longitudinal systolic function, lower delta E wave, prolonged t-IVT, and increased WMSI were the most powerful independent predictors of the presence and significance of CAD. These finding strengthen the role of comprehensive DSE analysis in diagnosing ischemic disturbances secondary to significant CAD.

Background: In the absence of mitral valve disease, increased left atrial volume (LAV) is a marker of diastolic dysfunction and long-standing elevated left ventricle (LV) pressure. The aim of this study was to assess the role of increased baseline LAV in predicting clinical outcome of patients presenting with acute coronary syndrome (ACS). Methods: We systematically searched all electronic databases up to September 2020 in order to select clinical trials and observational studies, which assessed the predictive role of LAV indexed (LAVI) on clinical outcome in patients with ACS. Primary clinical endpoints were as follows: major adverse cardiac events (MACE), all-cause mortality and hospitalization. Secondary endpoints were in-hospital complications. Results: A total of 2,705 patients from 11 cohort studies with a mean follow-up 18.7 +/- 9.8 months were included in the meta-analysis. Patients with low LAVI had low risk for MACE (15.9% vs. 33.7%; p < .01), long-term all-cause mortality (9.14% vs. 18.1%; p < .01), short-term mortality (3.31% vs. 9.38%; p = .02) and lower hospitalization rate (11.6% vs. 25.5%; p < .01) compared to patients with increased LAVI. Atrial fibrillation and cardiogenic shock as in-hospital events were lower (p < .05 for all) in patients with low LAVI but ventricular fibrillation/tachycardia was not different between groups (p = .14). Conclusion: Increased LAVI is an independent predictor of outcome in patients with ACS. Thus, assessment of LA index in these patients is important for better risk stratification and guidance towards optimum clinical management.

Background and AimType 2 diabetes mellitus (T2DM) is a known risk factor in patients with heart failure (HF), but its impact on phenotypic presentations remains unclear. This study aimed to prospectively examine the relationship between T2DM and functional exercise capacity, assessed by the 6-min walk test (6-MWT) in chronic HF.MethodsWe studied 344 chronic patients with HF (mean age 61 ± 10 years, 54% female) in whom clinical, biochemical, and anthropometric data were available and all patients underwent an echo-Doppler study and a 6-MWT on the same day. The 6-MWT distance divided the cohort into; Group I: those who managed ≤ 300 m and Group II: those who managed >300 m. Additionally, left ventricular (LV) ejection fraction (EF), estimated using the modified Simpson's method, classified patients into HF with preserved EF (HFpEF) and HF with reduced EF (HFrEF).ResultsThe results showed that 111/344 (32%) patients had T2DM, who had a higher prevalence of arterial hypertension (p = 0.004), higher waist/hips ratio (p = 0.041), higher creatinine (p = 0.008) and urea (p = 0.003), lower hemoglobin (p = 0.001), and they achieved shorter 6-MWT distance (p < 0.001) compared with those with no T2DM. Patients with limited exercise (p < 0.001), arterial hypertension (p = 0.004), and atrial fibrillation (p = 0.001), higher waist/hips ratio (p = 0.041), higher glucose level (p < 0.001), lower hemoglobin (p < 0.001), larger left atrium (LA) (p = 0.002), lower lateral mitral annular plane systolic excursion (MAPSE) (p = 0.032), septal MAPSE (p < 0.001), and tricuspid annular plane systolic excursion (TAPSE) (p < 0.001), compared with those performing >300 m. In the cohort as a whole, multivariate analysis, T2DM (p < 0.001), low hemoglobin (p = 0.008), atrial fibrillation (p = 0.014), and reduced septal MAPSE (p = 0.021) independently predicted the limited 6-MWT distance.In patients with HFpEF, diabetes [6.083 (2.613–14.160), p < 0.001], atrial fibrillation [6.092 (1.769–20.979), p = 0.002], and septal MAPSE [0.063 (0.027–0.184), p = 0.002], independently predicted the reduced 6-MWT, whereas hemoglobin [0.786 (0.624–0.998), p = 0.049] and TAPSE [0.462 (0.214–0.988), p = 0.041] predicted it in patients with HFrEF.ConclusionPredictors of exercise intolerance in patients with chronic HF differ according to LV systolic function, demonstrated as EF. T2DM seems the most powerful predictor of limited exercise capacity in patients with HFpEF.

IntroductionIn responders, cardiac resynchronisation therapy (CRT) results in improved left ventricular (LV) function and reduced atrial arrhythmia. The aim of this meta-analysis was to assess the potential relationship between the left atrium (LA) volume and CRT response.Material and methodsWe systematically searched all electronic databases up to August 2018 in order to select clinical trials and observational studies that assessed the predictive value of LA volume index (LAVI) of CRT response. Left ventricular end-systolic volume (LVESV) reduction ≥ 15 ml and/or LV ejection fraction (EF) increase ≥ 10% were the documented criteria for positive CRT response.ResultsA total of 2191 patients recruited in 10 studies with mean follow-up duration of 10.5 months were included in this meta-analysis. The pooled analysis showed that CRT responders had lower baseline LAVI compared to non-responders, with a weighted mean difference (WMD) of –5.89% (95% CI: –9.47 to –3.22, p < 0.001). At follow-up, LAVI fell in the CRT responders (WMD –4.36%, 95% CI: –3.54 to –5.17, p < 0.001) compared to non-responders (WMD 1.45 %, 95% CI: –0.75 to 3.65, p = 0.20). The mean change of LAVI in the CRT responders was related to the fall in LVESV,  = –1.02 (–1.46 to –0.58), p < 0.001 and the increase in LVEF,  = 2.02 (1.86 to 4.58), p = 0.001. A baseline LAVI < 34 ml/m2 predicted CRT response with summary sensitivity 0.80% (0.53–0.95), specificity 0.74% (0.53–0.89), and odds ratio > 11.ConclusionsBaseline LAVI predicts CRT response, and its reduction reflects devise-related LA remodelling. These results emphasis the role of LAVI assessment as an integral part of cardiac function response to CRT.

(1) Background and Aim: Conflicting evidence exists regarding the benefits of percutaneous coronary intervention (PCI) on survival and symptomatic relief of patients with chronic coronary syndrome (CCS) compared with optimal medical therapy (OMT). This meta-analysis is to evaluate the short- and long-term clinical benefit of PCI over and above OMT in CCS. (2) Methods: Main endpoints were major adverse cardiac events (MACEs), all-cause mortality, cardiovascular (CV) mortality, myocardial infarction (MI), urgent revascularization, stroke hospitalization, and quality of life (QoL). Clinical endpoints at very short (≤3 months), short- (

The aim of this meta-analysis was to evaluate the safety of 1-month dual antiplatelet therapy (DAPT) followed by aspirin or a P2Y12 receptor inhibitor, after percutaneous coronary intervention (PCI) with drug-eluting stents (DES), based on the available evidence.PubMed, MEDLINE, Embase, Scopus, Google Scholar, CENTRAL, and ClinicalTrials.gov database search identified four RCTs of 26,431 patients who underwent PCI with DES and compared 1-monthCompared with1-month DAPT, the 1-month DAPT was associated with a similar rate of major bleeding (OR = 0.74, 95%CI: 0.51-1.07,This meta-analysis proved the non-inferiority of 1-month DAPT followed by aspirin or a P2Y12 receptor inhibitor compared with long-term DAPT in patients undergoing PCI with DES.

Background and aims The Coptic Clergy, due to their specific work involving interaction with many people, could be subjected to increased risk of infection from COVID-19. The aim of this study, a sub-study of the COVID-19-CVD international study of the impact of the pandemic on the cardiovascular system, was to assess the prevalence of COVID-19 among Coptic priests and identify predictors of clinical adverse events. Methods Participants were geographically divided into three groups: Group-I: Europe and USA, Group II: Northern Egypt and Group III: Southern Egypt. Participants' demographic indices, cardiovascular risk factors, possible source of infection, number of liturgies, infection management and major adverse events (MAEs), comprising death, re-infection or mechanical ventilation, were assessed. Results Out of the 1,570 clergy serving in 25 dioceses, 226 (14.39%) were infected. Their mean age was 49.5±12 years and mean weekly number of liturgies was 3.44±1.0. The overall prevalence rate was 14.7% and did not differ between Egypt as a whole and overseas (p=0.23). Disease prevalence was higher in Northern Egypt clergy compared to Europe and USA combined (18.4% vs 12.1%, p=0.03) and tended to be higher than in Southern Egypt (18.4% vs. 13.6%, p=0.09). Ten priests (4.42%) died of COVID-19 related complications, 2 (0.9%) had re-infection and 27 (11.9%) suffered a MAE. The clergy from Southern Egypt were more obese but the remaining risk factors were less prevalent compared to those in Europe and USA (p=0.01). In multivariate analysis, obesity OR 4.184 (2.483 to 12.14; p=0.01); age OR 1.070 (0.014 to 1.130; p=0.02), and systemic hypertension OR 0.932 (0.874 to 0.994; p=0.007) predicted MAEs. Obesity was the most powerful independent predictor of MAE in Southern Egypt and systemic hypertension in Northern Egypt (p Conclusion Obesity is very prevalent among Coptic clergy and seems to be the most powerful independent predictor of major COVID-19-related adverse events. Funding Acknowledgement Type of funding sources: None. Prevalence of SARS-CoV2 among Clergy

Background and Aim: The aim of this study was to assess the nature of myocardial dysfunction in the cardiac syndrome X (CSX) and insignificant coronary artery disease (ICAD) using dobutamine stress echocardiography (DSE) and coronary calcium scoring (CAC). Methods: We prospectively studied 35 consecutive patients who complained of exertional angina, had ≥1 mm ST shift on exercise stress test but normal or no obstructive CAD ( 0.05 for all). CAC correlated modestly with LV and RV systolic velocities: septal s' (r = −0.65, p

Catheter ablation (CA) has become a conventional treatment for atrial fibrillation (AF), but remains with high recurrence rate. The aim of this meta-analysis was to determine left atrial (LA) structure and function indices that predict recurrence of AF.We systematically searched PubMed-Medline, EMBASE, Scopus, Google Scholar and the Cochrane Central Registry, up to September 2017 in order to select clinical trials and observational studies which reported echocardiographic predictors of AF recurrence after CA. Eighty-five articles with a total of 16 126 patients were finally included.The pooled analysis showed that after a follow-up period of 21 ± 12 months, patients with AF recurrence had larger LA diameter with weighted mean difference (WMD: 2·99 ([95% CI 2·50-3·47], P0·001), larger LA volume index (LAVI) maximal and LAVI minimal (P0·0001 for both), larger LA area (P0·0001), lower LA strain (P0·0001) and lower LA total emptying fraction (LA EF) (P0·0001) compared with those without AF recurrence. The most powerful LA predictors (in accuracy order) of AF recurrence were as follows: LA strain19% (OR: 3·1[95% CI, -1.3-10·4], P0·0001), followed by LA diameter ≥50 mm (OR: 2·75, [95% CI 1·66-4·56,] P0·0001), and LAVmax150 ml (OR: 2·25, [95% CI, 1.1-5·6], P = 0·0002).Based on this meta-analysis results, a dilated left atrium with diameter more than 50 mm and volume above 150 ml or myocardial strain below 19% reflect an unstable LA that is unlikely to hold sinus rhythm after catheter ablation for atrial fibrillation.

This meta-analysis assesses left atrial (LA) cavity and myocardial function measurements that predict pulmonary capillary wedge pressure (PCWP).PubMed-MEDLINE, EMBASE, Scopus, Google Scholar and the Cochrane Central Registry were searched up to December 2018 for studies on the relationship of LA diameter, LA indexed volume (LAVI max, LAVI min), peak atrial longitudinal (PALS), peak atrial contraction (PACS) strain and total emptying fraction (LAEF) with PCWP. Eighteen studies with 1343 patients were included. Summary sensitivity and specificity (with 95% CI) for evaluation of diagnostic accuracy and the best cut-off values for different LA indices in predicting raised PCWP were estimated using summary receiver operating characteristic analysis.The pooled analysis showed association between PCWP and LA diameter: Cohen's d = 0·87, LAVI max: d = 0·92 and LAVI min: d = 1·0 (P0·001 for all). A stronger correlation was found between PCWP and PALS: d = 1·26, and PACS: d = 1·62, total EF d = 1·22 (P0·0001 for all). PALS ≤19% had a summary sensitivity of 80% (65-90) and summary specificity of 77% (52-92), positive likelihood ratio (LR+) 3·74, negative likelihood ratio (LR-)0·25 and DOR 15·1 whereas LAVI ≥34 ml mCompromised LA myocardial function and increased size predict raised cavity pressure. These results should assist in optimum follow-up of patients with fluctuating LA pressure.

Background: This meta-analysis aims to estimate the power of walking stride length as a predictor of adverse clinical events in older adults. Methods: We searched all electronic databases until April 2021 for studies reporting stride length and other spatial gait parameters, including stride velocity, stride width, step width and stride variability, and compared them with clinical outcomes in the elderly. Meta-analyses of odds ratios (ORs) of effects of stride length on clinical outcomes used the generic inverse variance method and random model effects. Clinical outcomes were major adverse events (MAEs), physical disability and mortality. Results: Eleven cohort studies with 14,167 patients (mean age 75.4 ± 5.6 years, 55.8% female) were included in the analysis. At 33.05 months follow up, 3839 (27%) patients had clinical adverse events. Baseline stride length was shorter, WMD −0.15 (−0.19 to −0.11, p < 0.001), and stride length variability was higher, WMD 0.67 (0.33 to 1.01, p < 0.001), in fallers compared to non-fallers. Other gait parameters were not different between the two groups (p > 0.05 for all). Short stride length predicted MAE OR 1.36 (95% CI; 1.19 to 1.55, p < 0.001), physical disability OR 1.26 (95% CI; 1.11 to 1.44, p = 0.004) and mortality OR 1.69 (95% CI; 1.41 to 2.02, p < 0.001). A baseline normalized stride length ≤ 0.64 m was more accurate in predicting adverse clinical events, with summary sensitivity 65% (58–71%), specificity 72% (69–75%) and accuracy 75.5% (74.2–76.7%) compared to stride length variability 5.7%, with summary sensitivity 66% (61–70%), specificity 56% (54–58%) and accuracy 57.1% (55.5–58.6%). Conclusion: The results of this meta-analyses support the significant value of stride length for predicting life-threatening clinical events in older adults. A short stride length of ≤0.64 m accurately predicted clinical events, over and above other gait measures.

Background and Aims: The clinical adverse events of COVID-19 among clergy worldwide have been found to be higher than among ordinary communities, probably because of the nature of their work. The aim of this study was to assess the impact of cardiac risk factors on COVID-19-related mortality and the need for mechanical ventilation in Coptic clergy. Methods: Of 1570 Coptic clergy participating in the COVID-19-Clergy study, serving in Egypt, USA and Europe, 213 had the infection and were included in this analysis. Based on the presence of systemic arterial hypertension (AH), participants were divided into two groups: Group-I, clergy with AH (n = 77) and Group-II, without AH (n = 136). Participants’ demographic indices, cardiovascular risk factors, COVID-19 management details and related mortality were assessed. Results: Clergy with AH were older (p &lt, 0.001), more obese (p = 0.04), had frequent type 2 diabetes (DM) (p = 0.001), dyslipidemia (p = 0.001) and coronary heart disease (CHD) (p = 0.04) compared to those without AH. COVID-19 treatment at home, hospital or in intensive care did not differ between the patient groups (p &gt, 0.05 for all). Clergy serving in Northern and Southern Egypt had a higher mortality rate compared to those from Europe and the USA combined (5.22%, 6.38%, 0%, p = 0.001). The impact of AH on mortality was significant only in Southern Egypt (10% vs. 3.7%, p = 0.01) but not in Northern Egypt (4.88% vs. 5.81%, p = 0.43). In multivariate analysis, CHD OR 1.607 ((0.982 to 3.051), p = 0.02) and obesity, OR 3.403 ((1.902 to 4.694), p = 0.04) predicted COVID-19 related mortality. A model combining cardiac risk factors (systolic blood pressure (SBP) ≥ 160 mmHg, DM, obesity and history of CHD) was the most powerful independent predictor of COVID-19-related mortality, OR 3.991 ((1.919 to 6.844), p = 0.002). Almost the same model also proved the best independent multivariate predictor of mechanical ventilation OR 1.501 ((0.809 to 6.108), p = 0.001). Conclusion: In Coptic clergy, the cumulative impact of risk factors was the most powerful predictor of mortality and the need for mechanical ventilation.

Agata Bielecka-Dabrowa, 1, 2 Paulina Gasiorek, 2 Andrzej Wittczak, 2 Agata Sakowicz, 3 Ibadete Bytyçi, 4, 5 Maciej Banach 1, 2 1Heart Failure Unit, Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), Lodz, Poland; 2Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Lodz, Poland; 3Department of Medical Biotechnology, Medical University of Lodz, Lodz, Poland; 4Clinic of Cardiology, University Clinical Centre of Kosovo, Prishtina, Kosovo; 5Institute of Public Health and Clinical Medicine, Umeå University, Umeå, SwedenCorrespondence: Agata Bielecka-DabrowaHeart Failure Unit¸ Department of Cardiology and Congenital Diseases of Adults, Polish Mother’s Memorial Hospital Research Institute (PMMHRI), Rzgowska 281/289, Lodz, 93-338, PolandTel +48 42 271 15 97Fax +48 42 271 15 91Email agatbiel7@poczta.onet.plObjective: Identification of echocardiographic, hemodynamic and biochemical predictors of unfavorable prognosis after embolic strokes of undetermined etiology (ESUS) in patients at age < 65.Patients and Methods: Out of 520 ischemic stroke patients we selected 64 diagnosed with ESUS and additional 36 without stroke but with similar risk profile. All patients underwent echocardiography, non-invasive assessment of hemodynamic parameters using SphygmoCor tonometer and measurements of selected biomarkers. Follow-up time was 12 months.Results: Nine percent of patients died, and recurrent ischemic stroke occurred in 9% of patients only in the ESUS group. Atrial fibrillation (AF) occurred in 10% of patients and the ESUS group had a significantly poorer outcome of AF in the first 2 months after hospitalization. The outcome of re-hospitalization was 28% in the ESUS group and 17% in the control group. In the multivariate analysis mean early diastolic (E’) mitral annular velocity (OR 0.75, 95% CI: 0.6– 0.94; p=0.01) was significantly associated with cardiovascular hospitalizations. The only independent predictor of recurrent stroke was the ratio of peak velocity of early diastolic transmitral flow to peak velocity of early diastolic mitral annular motion (E/E’) (OR 0.75, 95% CI: 0.6– 0.94; p=0.01). E/E’ was independently associated with composite endpoint (death, hospitalization and recurrent stroke) (OR 1.90, 95% CI 1.1– 3.2, p=0.01).Conclusion: The indices of diastolic dysfunction are significantly associated with unfavorable prognosis after ESUS. There is a robust role for outpatient cardiac monitoring especially during the first 2 months after ESUS to detect potential AF.Keywords: ischemic stroke of undetermined etiology, atrial fibrillation, diastolic heart failure, diastolic dysfunction

Objective: This meta-analysis aims to compare the relationship between phenotypic manifestation of coronary and carotid atherosclerosis using available imaging techniques. Approach and Results: We searched all electronic databases until October 2020 for studies which reported relationship between carotid and coronary atherosclerosis. The primary end point was correlation between carotid intima-media thickness (CIMT) and carotid plaque features (calcification and lipid-rich necrotic core) with coronary artery disease (CAD). Secondary end points included carotid pathology that predicts CAD. Eighty-nine papers with 22 683 patients comparing carotid and coronary atherosclerosis were included in the analysis. CIMT was increased linearly with severity of CAD irrespective of its significance ( P P =0.003), and 2 versus multivessel disease ( P P P =0.03, P r =0.60, P r =0.49, P r =0.53, P r =0.61, P Conclusions: These results support the concept that atherosclerosis affects both carotid and coronary systems, although not always in identical phenotypic manner. These findings highlight the beneficial examination of carotid arteries whenever CAD is suspected.

Aim:The aim of this meta-analysis is to assess the impact of wall shear stress (WSS) severity on arterial plaque vulnerability.Methods:We systematically searched electronic databases and selected studies which assessed the relationship between WSS measured by intravascular ultrasound and coronary artery plaque features. In 7 studies, a total of 615 patients with 28 276 arterial segments (median follow-up: 7.71 months) were identified. At follow-up, the pooled analysis showed high WSS to be associated with regression of plaque fibrous area, weighted mean difference (WMD) −0.11 (95% CI: −0.20 to −0.02, P = .02) and fibrofatty area, WMD −0.09 (95% CI: −0.17 to −0.01, P = .02), reduction in plaque total area, WMD −0.09 (95% CI: −0.14 to −0.04, P = .007) and increased necrotic core area, and WMD 0.04 (95% CI: 0.01-0.09, P = .03) compared with low WSS. Dense calcium deposits remained unchanged in high and low WSS (0.01 vs 0.02 mm2; P > .05). High WSS resulted in profound remodeling (40% vs 18%, P < .05) and with more constructive remodeling than low WSS (78% vs 40%, P < .01).Conclusions:High WSS in coronary arteries is associated with worsening plaque vulnerability and more profound arterial wall remodeling compared with low WSS.

Background and Aims: The Coptic clergy, due to their specific work involving interaction with many people, could be subjected to increased risk of infection from COVID-19. The aim of this study, a sub-study of the COVID-19-CVD international study of the impact of the pandemic on the cardiovascular system, was to assess the prevalence of COVID-19 among Coptic priests and to identify predictors of clinical adverse events. Methods: Participants were geographically divided into three groups: Group-I: Europe and USA, Group II: Northern Egypt, and Group III: Southern Egypt. Participants’ demographic indices, cardiovascular risk factors, possible source of infection, number of liturgies, infection management, and major adverse events (MAEs), comprising death, or mechanical ventilation, were assessed. Results: Out of the 1570 clergy serving in 25 dioceses, 255 (16.2%) were infected. Their mean age was 49.5 ± 12 years and mean weekly number of liturgies was 3.44 ± 1.0. The overall prevalence rate was 16.2% and did not differ between Egypt as a whole and overseas (p = 0.23). Disease prevalence was higher in Northern Egypt clergy compared with Europe and USA combined (18.4% vs. 12.1%, p = 0.03) and tended to be higher than in Southern Egypt (18.4% vs. 13.6%, p = 0.09). Ten priests (3.92%) died of COVID-19-related complications, and 26 (10.2) suffered a MAE. The clergy from Southern Egypt were more obese, but the remaining risk factors were less prevalent compared with those in Europe and USA (p = 0.01). In multivariate analysis, obesity (OR = 4.180, 2.479 to 12.15, p = 0.01), age (OR = 1.055, 0.024 to 1.141, p = 0.02), and systemic hypertension (OR = 1.931, 1.169 to 2.004, p = 0.007) predicted MAEs. Obesity was the most powerful independent predictor of MAE in Southern Egypt and systemic hypertension in Northern Egypt (p &lt, 0.05 for both). Conclusion: Obesity is very prevalent among Coptic clergy and seems to be the most powerful independent predictor of major COVID-19-related adverse events. Coptic clergy should be encouraged to follow the WHO recommendations for cardiovascular disease and COVID-19 prevention.

Background and aim: Heart failure (HF) is a clinical syndrome associated with poor quality of life and prognosis, and premature mortality. The aim of this study was to assess the prevalence of depression and its risk factors in HF patients. Methods: The study included 151 HF patients (mean age of 66.6 ± 11 years, 52.3% female). Based on ejection fraction (EF), the study cohort was divided into the following two groups: group-I: HFpEF patients (EF ≥ 50%, n = 47) and group-II: HFrEF patients (EF < 40%, n = 104). For the enrolled patients, demographic, clinic and echocardiographic indices, and depression scale results were collected. Results: The patients with HF and depression were older, mostly females, more obese, and had a higher glycemic level and higher NYHA functional class compared with the patients without depression (p < 0.05 for all). The left ventricle (LV) and left atrial (LA) dimensions were larger, and EF was lower, in patients with depression compared to those without depression (p < 0.05 for all), while the right ventricle (RV) measurements did not differ (p > 0.05). The same parameters remained significantly different when the patients were divided into HFpEF and HFrEF. The depression scale correlated with glycemic level (r = 0.51, p = 0.01), obesity (rpb = 0.53, p = 0.001), age (r = 0.47, p = 0.02), and severity of NYHA class (rpb = 0.54, p = 0.001). On a multivariate model, BMI ≥ 30 kg/m2, OR 1.890 (1.199 to 3.551; 0.02) glycemic level ≥ 8.5 mmol/L, OR 2.802 (1.709 to 5.077; p = 0.01), and NYHA class > 2, OR 2.103 (1.389 to 4.700; p = 0.01), proved to be the most powerful independent predictors of depression, in the group as a whole. Obesity and uncontrolled diabetes predicted depression, irrespective of EF. Conclusions: In this modest cohort of HF patients, obesity and uncontrolled diabetes were independent predictors of depression, irrespective of LV systolic function. This emphasizes the important role of medical education for better control of such risk factors.

COVID-19; Biomarkers; Creatinine COVID-19; Biomarcadores; Creatinina COVID-19; Biomarcadors; Creatinina Background: The COVID-19 pandemic carries a high burden of morbidity and mortality worldwide. We aimed to identify possible predictors of in-hospital major cardiovascular (CV) events in COVID-19. Methods: We retrospectively included patients hospitalized for COVID-19 from 10 centers. Clinical, biochemical, electrocardiographic, and imaging data at admission and medications were collected. Primary endpoint was a composite of in-hospital CV death, acute heart failure (AHF), acute myocarditis, arrhythmias, acute coronary syndromes (ACS), cardiocirculatory arrest, and pulmonary embolism (PE). Results: Of the 748 patients included, 141(19%) reached the set endpoint: 49 (7%) CV death, 15 (2%) acute myocarditis, 32 (4%) sustained-supraventricular or ventricular arrhythmias, 14 (2%) cardiocirculatory arrest, 8 (1%) ACS, 41 (5%) AHF, and 39 (5%) PE. Patients with CV events had higher age, body temperature, creatinine, high-sensitivity troponin, white blood cells, and platelet counts at admission and were more likely to have systemic hypertension, renal failure (creatinine ≥ 1.25 mg/dL), chronic obstructive pulmonary disease, atrial fibrillation, and cardiomyopathy. On univariate and multivariate analysis, troponin and renal failure were associated with the composite endpoint. Kaplan–Meier analysis showed a clear divergence of in-hospital composite event-free survival stratified according to median troponin value and the presence of renal failure (Log rank p < 0.001). Conclusions: Our findings, derived from a multicenter data collection study, suggest the routine use of biomarkers, such as cardiac troponin and serum creatinine, for in-hospital prediction of CV events in patients with COVID-19.

Background The recently published COMPLETE trial has demonstrated that patients with ST-segment elevation myocardial infarction (STEMI) and multivessel coronary artery disease (MVD), who underwent successful percutaneous coronary intervention (PCI) of both culprit and non-culprit (vs. culprit-only) lesion had a reduced risk of major adverse cardiac events (MACE: cardiovascular mortality, myocardial infarction, or ischemia-driven revascularization), but not of cardiovascular or total mortality. Aim To assess the efficacy of complete revascularization for cardiovascular or total mortality reduction by meta-analysis of all available randomized controlled trials (RCTs) including the COMPLETE trial. Methods PubMed, MEDLINE, Embase, Scopus, Google Scholar, CENTRAL and ClinicalTrials.gov databases search identified 10 RCTs of 7033 patients with STEMI and MVD which compared complete (n=3420) vs. only culprit lesion (n=3613) PCI for a median 28.7 months follow-up. Random effect risk ratios were used for efficacy and safety outcomes. Results Complete revascularization reduced the risk of MACE (10.4% vs. 16.6%; RR=0.59, 95% CI: 0.47 to 0.74, p Conclusion The findings of this meta-analysis suggest that in patients with STEMI and MVD, complete revascularization is superior to culprit-only PCI in reducing the risk of MACE outcomes, including cardiovascular mortality, without increasing the risk of adverse safety outcomes. Funding Acknowledgement Type of funding source: None

Background The two available interventional treatment of patients with hypertrophic obstructive cardiomyopathy aresurgical myectomy (SM) and Alcohol septal ablation (ASA). The aim of this meta-analysis was to assess the efficacity of these two invasive strategies in relieving symptoms and left ventricular outflow tract obstruction (LVOTO). Methods We searched PubMed, EMBASE, Scopus, Google Scholar and Cochrane Central until February 2020 for RCTs and cohorts comparing clinical outcomes with alcohol septal ablation (ASA) vs surgical myectomy (SM) in patients with HCM. The endpoints were relieving symptoms, reduced left ventricular outflow tract obstruction (LVOTO) and the need for reintervention. Results We included 20 studies (n=4547; 3 RCTs and 17 cohorts) comparing ASA vs MS for a mean follow-up 5.2±2.1 year. Baseline mean LVOT gradient was not different between the ASA and the MS patient groups with weighted mean difference (WMD) = 1.50 [−3.47 to 6.46, p=0.56]. During follow-up, SM patients showed greater reduction in the LVOT gradient compared to ASA WMD = −9.61 [CI, 4.71 to 14.50, p=0.0001]. In addition, SM group had greater resolution of clinical symptoms compared to ASA (NYHA class III/IV, 17% vs. 6.2% R: 2.76, CI, 1.64 to 4.64, p Conclusion Compared with alcohol septal ablation, septal myectomy treatment of hypertrophic obstructive cardiomyopathy is associated with greater resolution of clinical symptoms and less need for reintervention. Funding Acknowledgement Type of funding source: None

An amendment to this paper has been published and can be accessed via the original article.

Introduction: Although interventions combining patient education and post discharge management havedemonstrated benefits in patients with cardiovascular disease the benefit attributable to ambulatory nurseeducation (ANE) alone is uncertain.Material and Method: A quasi experimental study was conducted in Specialist Cardiology Ambulance D& D in Pristinaamong 98 patients. Ambulatory nurse education was implemented to assess the effectivenesson awareness on life style where pretest and posttest design without control group was used. A completeclinical and laboratory measurements before and after ANE (at 30, 60 and 90 days) were performed. Theclinical outcome were physical activity, body mass index, blood pressure, lipid and diabetic profile. Thepre-post tested (validity, reliability and pilot testing) structured questionnaire was used for data collection.Results: At follow up to 90 days, in patients that underwent ANE program, the following indices weredecreased: BMI (p

Background: The recently published COMPLETE trial has demonstrated that patients with ST-segment elevation myocardial infarction (STEMI) and multivessel coronary artery disease (MVD), who underwent successful percutaneous coronary intervention (PCI) of both culprit and non-culprit (vs. culprit-only) lesions had a reduced risk of major adverse cardiac events (MACE), but not of cardiovascular or total mortality. The aim of this meta-analysis was to assess the efficacy of complete revascularization on cardiovascular or total mortality reduction using available randomized controlled trials (RCTs) including the COMPLETE trial, in hemodynamically stable STEMI patients with MVD. Methods: PubMed, MEDLINE, Embase, Scopus, Google Scholar, CENTRAL and ClinicalTrials.gov databases search identified 10 RCTs of 7033 patients with STEMI and MVD which compared complete (n = 3420) vs. only culprit lesion (n = 3613) PCI for a median 27.7 months follow-up. Random effect risk ratios were used to estimate for efficacy and safety outcomes. Results: Complete revascularization reduced the risk of MACE (10.4% vs.16.6%; RR = 0.59, 95% CI: 0.47 to 0.74, p < 0.0001), CV mortality (2.87% vs. 3.72%; RR = 0.73, 95% CI: 0.56 to 0.95, p = 0.02), reinfarction (5.1% vs. 7.1%; RR = 0.67, 95% CI: 0.52 to 0.86, p = 0.002), urgent revascularization (7.92% vs.17.4%; RR = 0.47, 95% CI: 0.30 to 0.73, p < 0.001), and CV hospitalization (8.68% vs.11.4%; RR = 0.65, 95% CI: 0.44to 0.96, p = 0.03) compared with culprit only revascularization. All-cause mortality, stroke, major bleeding events, or contrast induced nephropathy were not affected by the revascularization strategy. Conclusion: The findings of this meta-analysis suggest that in patients with STEMI and MVD, complete revascularization is superior to culprit-only PCI in reducing the risk of MACE outcomes, including cardiovascular mortality, without increasing the risk of adverse safety outcomes.

Background and Aim Arterial wall strain has been proposed to impact the features of developed plaques. The aim of this meta-analysis is to assess the impact of different types of wall shear strain (WSS) on the changes of vulnerable plaque in coronary artery disease (CAD). Methods We systematically searched PubMed-Medline, EMBASE, Scopus, Google Scholar and the Cochrane Central Registry, from 1989 up to May 2019 in order to select clinical trials and observational studies, which assessed the relationship between WSS measured by intravascular ultrasound (IVUS) and morphology of plaque in CAD. Results In 7 studies, a total of 724 patients with 32,083 segments were recruited, with mean follow up 8.4 months. The pooled analysis showed that low WSS was associated with larger baseline lumen area WMD 2.55 [1.34 to 3.76, p At follow-up, the high WSS had regression of fibrous area, WMD -0.12 [-0.22 to -0.02, p = 0.02] and fibro-fatty area WMD -0.11 [-0.23 to -0.01, p = 0.04], reduction of plaque area WMD -0.09 [-0.17 to -0.02, p = 0.01] and increased dense calcium WMD 0.08 [0.02 to 0.14, p = 0.006] and necrotic core area WMD 0.07 [0.01 to 0.13, p = 0.03] compared to low WSS (Figure 1). The high WSS developed more profound remodeling compared to low WSS (40 vs. 18%, p Abstract 1178 Figure 1. Mean change of plaque morpholo

Background and Aim Diabetes mellitus (DM) affects left ventricular remodeling in patients with heart failure (HF), but its effect on left atrial (LA) remodeling and their combined effect on survival and other clinical events (CE) remain to be elucidated. We evaluated in this study the relationship between DM and left atrial (LA) remodeling in a group of HF patients with reduced ejection fraction (HFrEF), Methods This studied 136 consecutive HFrEF patients (65 ± 11 years), 36 diabetics, using conventional and tissue Doppler echocardiography. LA dimension and function were measured and cavity stiffness was calculated with the formula: LA stiffness = E/e’ratio/LA strain. Results The age, gender, LV end-systolic dimension, LV end-diastolic dimension, LV EF and BNP level did not differ between diabetic and non-diabetic patients. Diabetic patients with HFrEF had higher NYHA functional class (p = 0.02), reduced right ventricle (RV) systolic function (p = 0.01) and increased LA stiffness (p = 0.02) . At follow up of 55 ± 37 months, survival free from CE was 69% in non-diabetics compared with 44.4% in diabetics (X2 12.7; p< 0.0001). The CE free survival was lower in patients with increased LA stiffnes, irrespective of the presence of DM: 1) Patients with HFrEF without DM and normal LA stiffness (85%); 2) Patients with HFrEF without DM and with increased LA stiffness (50%); 3) Patients with HFrEF with DM and with normal LA stiffness (71%) and patients with HFrEF with DM and with increased LA stiffness (27%) (X2 29.6; p< 0.0001, Figure 1). Conclusion Compromised LA stiffness as surrogate of LA remodeling is associated with poor outcome in patients with heart failure and reduced EF. The presence of diabetes in patients with HFrEF and increased LA stiffness has incremental prognostic value. Abstract P791 Figure.

Background and Aim: Treatment of patients with left main coronary artery disease (LMCA) with percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) remains controversial. The aim of this meta-analysis was to compare the long-term clinical outcomes of patients with unprotected LMCA treated randomly by PCI or CABG. Methods: PubMed, MEDLINE, Embase, Scopus, Google Scholar, CENTRAL and ClinicalTrials.gov database searches identified five randomized trials (RCTs) including 4499 patients with unprotected LMCA comparing PCI (n = 2249) vs. CABG (n = 2250), with a minimum clinical follow-up of five years. Random effect risk ratios were used for efficacy and safety outcomes. The study was registered in PROSPERO. The primary outcome was major adverse cardiac events (MACE), defined as a composite of death from any cause, myocardial infarction or stroke. Results: Compared to CABG, patients assigned to PCI had a similar rate of MACE (risk ratio (RR): 1.13; 95% CI: 0.94 to 1.36; p = 0.19), myocardial infarction (RR: 1.48; 95% CI: 0.97 to 2.25; p = 0.07) and stroke (RR: 0.87; 95% CI: 0.62 to 1.23; p = 0.42). Additionally, all-cause mortality (RR: 1.07; 95% CI: 0.89 to 1.28; p = 0.48) and cardiovascular (CV) mortality (RR: 1.13; 95% CI: 0.89 to 1.43; p = 0.31) were not different. However, the risk of any repeat revascularization (RR: 1.70; 95% CI: 1.34 to 2.15; p < 0.00001) was higher in patients assigned to PCI. Conclusions: The findings of this meta-analysis suggest that the long-term survival and MACE of patients who underwent PCI for unprotected LMCA stenosis were comparable to those receiving CABG, despite a higher rate of repeat revascularization.

The aim of this study was to assess the accuracy of echocardiographic techniques in detecting the early recovery of left ventricular (LV) function after revascularization in acute coronary syndrome (ACS). In 80 consecutive patients with ACS (age 55.7 &plusmn, 9.4 years, 77% male, 15% with CCS Angina III), an echocardiographic examination of left ventricle regional wall motion abnormalities (LV RWMA), peak systolic strain rate (PSSR), peak systolic strain (PSS) and end systolic strain (ESS) was performed before and after percutaneous intervention (PCI). Of the 80 patients, one vessel stenosis (&gt, 70%) was present in 53 (66%), two vessel disease in 12 (15%) and multivessel disease in 15 patients (19%). In total, 51% of patients had hypertension, 40% diabetes and 23% dyslipidemia. After PCI, regional PSS, ESS and PSSR of their segments subtended by the culprit vessel improved, left anterior descending-LAD, circumflex-LCx and right coronary-RCA (p&lt, 0.05 for all) as well as global S and SR (p &lt, 0.05 for all). In univariate analysis, hypertension (HTN) (&beta, = &minus, 0.294 (&minus, 0.313&ndash, 0.047), p = 0.009, smoking &beta, 0.244 (&minus, 0.289&ndash, 0.015) =0.03, WMA &beta, 0.317 (&minus, 0.284&ndash, 0.014), p = 0.004 and the number of diseased vessels &beta, 0.256 (&minus, 0.188&ndash, 0.054) p=0.03 were predictors of delta global SR. In multivariate analysis, only HTN &beta, = 0.263 (0.005&ndash, 3.159) and the number of diseased vessels &beta, =0.263 (0.005 - 3.159), p=0.04) predicted delta global SR. In ACS, the echocardiographic regional myocardial deformation is accurate in detecting early recovery of LV myocardial function after culprit lesion revascularization. Also, the findings of this study support the current practice regarding the crucial importance of proximal epicardial vessel PCI treatment on LV function compared to more distal lesions.

Background and Aim Long standing hypothyroidism may impair myocardial relaxation, but its effect on systolic myocardial function is still controversial. The aim of this study was to investigate left ventricular (LV) systolic and diastolic function in patients with hypothyroidism. Methods This study included 81 (age 42 ± 13 years, 92% female) patients with hypothyroidism, and 22 age and gender matched controls. All subjects underwent a detailed clinical examination followed by a complete biochemical blood analysis including thyroid function assessment and anthropometric parameters measurements. LV function was assessed by 2 dimensional, M-mode and Tissue-Doppler Doppler echocardiographic examination performed in the same day. Results Patients had lower waist/hip ratio (p Conclusion In patients with hypothyroidism, in addition to compromised LV diastolic function, LV longitudinal systolic function is also impaired compared to healthy subjects of the same age and gender. These findings suggest significant subendocardial function impairment, reflecting potentially micro-circulation disease, that requires optimum management.

Background and Aim Left atrial (LA) stiffness is an important marker of cardiac pump function, especially in patients with heart failure (HF) and preserved ejection fraction (HFpEF). The aim of this study was to evaluate the relationship between LA stiffness and cardiac events (CE) in HF patients with reduced ejection fraction (HFrEF). Methods This study included 136 consecutive HFrEF outpatients (mean age: 65 ± 11 years). A complete conventional and tissue Doppler imaging study was performed. The LA dimension and function were measured. Non invasive LA stiffness was calculated with the following formula: LA stiffness = E/e’ratio/LA strain. The cardiac events were HF hospitalization and cardiac death. Results During a median follow up of 55 ± 37 months, 51 patients had CE, they had higher NYHA functional class (p = 0.001), higher LV end-diastolic dimension (p = 0.001), higher LV end-systolic dimension (p = 0.04), lower EF (p < 0.001), higher E/A ratio (p = 0.01) and reduced TAPSE (p = 0.001) compared with patients without CE. LA volume index was higher (p = 0.001), LA strain was reduced and LA stiffness was increased in patients with CE compared to those without CE (p = 0.0001, p < 0.0001, respectively). LA stiffness exhibited the closest relationship with E/e’ ratio (r = 0.67, p < 0.001). Survival analyses showed that LA stiffness [HR: 4.026 (1.300–12.468), p = 0.001] was the most powerful independent predictor of cardiac events[C1] . On ROC curve analysis, a LA stiffness < 0.82% was 81% sensitive and 73% specific (AUC 0.81, p < 0.001) in predicting clinical events (Figure 1). Conclusion In this cohort of outpatients with HFrEF, LA stiffness proved the most important predictor of clinical outcome. [C1] Abstract P1544 Figure.