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Aim To evaluate the burden and predictors of throm - boembolic complications in a large real-life cohort of hos - pitalized patients with established coronavirus disease 2019 (COVID-19). Methods We retrospectively reviewed the records of 4014 consecutive adult patients admitted to a tertiary-level insti - tution because of COVID-19 from March 2020 to March 2021 for the presence of venous and arterial thrombotic events. Results Venous-thromboembolic (VTE) events were pres - ent in 5.3% and arterial thrombotic events in 5.8% patients. The majority of arterial thromboses occurred before or on the day of admission, while the majority of VTE events oc - curred during hospitalization. The majority of both types of events occurred before intensive care unit (ICU) admis - sion, although both types of events were associated with a higher need for ICU use and prolonged immobilization. In multivariate logistic regression, VTE events were inde - pendently associated with metastatic malignancy, known thrombophilia, lower mean corpuscular hemoglobin con - centration, higher D-dimer, lower lactate dehydrogenase, longer duration of disease on admission, bilateral pneu - monia, longer duration of hospitalization, and immobiliza - tion for at least one day. Arterial thromboses were inde - pendently associated with less severe COVID-19, higher Charlson comorbidity index, coronary artery disease, pe - ripheral artery disease, history of cerebrovascular insult, as - pirin use, lower C reactive protein, better functional status on admission, ICU use, immobilization for at least one day, absence of hyperlipoproteinemia, and absence of meta - static malignancy. Conclusion Among hospitalized COVID-19 patients, ve - nous and arterial thromboses differ in timing of presenta - tion, association with COVID-19 severity, and other clinical characteristics.

Coronavirus disease 2019 (COVID-19) pandemic resulted in global healthcare crises and strained health resources, both in the acute and chronic phase of the disease. Similarly to post-acute viral syndromes described in survivors of other virulent coronavirus epidemics, there are increasing reports of persistent and prolonged symptoms after acute COVID-19. These reports and studies have helped contribute to the recognition of post-COVID-19, a syndrome characterized by persistent symptoms and/or delayed or long-term complications beyond 4 weeks from the onset of symptoms. Here, we provide a comprehensive review of different manifestations of post-COVID conditions and propose a framework for the identification of patients at higher risk for post- COVID and their coordinated management through dedicated COVID-19 outpatient clinics.

Objective: To investigate differences in clinical presentation, anticoagulation pattern and outcomes in patients with dementia and atrial fibrillation (AF).Methods: A total of 1217 hospitalized patients with non-valvular AF from two institutions were retrospectively evaluated. Diagnosis of dementia was established by a psychiatrist or a neurologist prior to or during hospitalization. Adequacy of warfarin anticoagulation was assessed during follow-up using at least 10 standardized international ratio values. In addition to unmatched comparison, nested case-control study was performed to further evaluate differences in clinical outcomes between patients with and without dementia.Results: A total of 162/1217 (13.3%) patients were diagnosed with dementia. Among other associations, patients with dementia were significantly older with higher number of comorbidities, had lower estimated glomerular filtration rate (eGFR) and lower left ventricular ejection fraction (LVEF), (P < 0.05 for all analyses). Patients with dementia were significantly less likely to receive direct oral anticoagulants (DOACs ; 27.2% vs 40.3% ; P = 0.001) and were significantly more likely to be inadequately anticoagulated with warfarin (38.9% vs 28.6% ; P = 0.008) than patients without dementia. After matching based on age, eGFR, LVEF, and CHA2DS2-VASC patients with dementia were significantly more likely to experience inferior overall survival (HR = 1.8 ; P = 0.001) and shorter time to thrombosis (HR = 2.3 ; P = 0.019).Conclusion: Our findings speak in support of increased thrombotic and mortality risks in patients with dementia, possibly due to inadequate anticoagulation and higher number of comorbidities.

Objective: Our objective was to investigate the predictors of falls requiring a visit to the emergency department in patients with nonvalvular atrial fibrillation (AF) receiving different types of anticoagulants and to investigate the clinical consequences of falling in the same population. ----- Methods: A total of 1217 patients with nonvalvular AF from two institutions were retrospectively evaluated. Each patient underwent a physical examination, and clinical histories and medication profiles were taken from each patient at baseline. ----- Results: The median age of our cohort was 71 years; 52.3% were males, and 86.1% of patients were receiving anticoagulation at study baseline. The 5-year freedom-from-falling rate was 81.6%. The use and type of anticoagulation was not significantly associated with the risk of falling (P = 0.222), whereas higher Morse Fall Scale (MFS), CHA2DS2-VASC (congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, stroke or transient ischemic attack, vascular disease, age 65-74 years, sex category), and HAS-BLED (hypertension, abnormal renal/liver function, stroke, bleeding history or predisposition, labile international normalized ratio, elderly [> 65 years], drugs/alcohol concomitantly) scores were significantly associated with a higher hazard of the first fall in univariate analyses. In the multivariate Cox regression model, MFS, older age, osteoporosis, higher levels of high-density lipoprotein cholesterol, higher diastolic blood pressure, and use of amiodarone, diuretics, or short- and medium-acting benzodiazepines were mutually independent predictors of the first fall. Of 163 patients, 93 (57%) had a bone fracture during the fall. Type of anticoagulation significantly affected survival after the first fall (P < 0.001): patients inadequately anticoagulated with warfarin had worse survival rates, and patients receiving apixaban and dabigatran had the best survival rates after the first fall. ----- Conclusion: Older patients who had comorbidities and were taking amiodarone, diuretics, or short- or medium-acting benzodiazepines had the highest risk of falls. The type and quality of anticoagulation did not seem to affect the risk of falling but did significantly affect survival after the first fall.

Background The epidemiology and outcome after out-of-hospital cardiac arrest (OHCA) varies across Europe. Following on from EuReCa ONE, the aim of this study was to further explore the incidence of and outcomes from OHCA in Europe and to improve understanding of the role of the bystander. Methods This prospective, multicentre study involved the collection of registry-based data over a three-month period (1st October 2017 to 31st December 2017). The core study dataset complied with the Utstein-style. Primary outcomes were return of spontaneous circulation (ROSC) and survival to hospital admission. Secondary outcome was survival to hospital discharge. Results All 28 countries provided data, covering a total population of 178,879,118. A total of 37,054 OHCA were confirmed, with CPR being started in 25,171 cases. The bystander cardiopulmonary resuscitation (CPR) rate ranged from 13% to 82% between countries (average: 58%). In one third of cases (33%) ROSC was achieved and 8% of patients were discharged from hospital alive. Survival to hospital discharge was higher in patients when a bystander performed CPR with ventilations, compared to compression-only CPR (14% vs. 8% respectively). Conclusion In addition to increasing our understanding of the role of bystander CPR within Europe, EuReCa TWO has confirmed large variation in OHCA incidence, characteristics and outcome, and highlighted the extent to which OHCA is a public health burden across Europe. Unexplained variation remains and the EuReCa network has a continuing role to play in improving the quality management of resuscitation. info:eu-repo/semantics/publishedVersion

The essential role of immunoglobulin G (IgG) in immune system regulation and combatting infectious diseases cannot be fully recognized without an understanding of the changes in its N-glycans attached to the asparagine 297 of the Fc domain that occur under such circumstances. These glycans impact the antibody stability, half-life, secretion, immunogenicity, and effector functions. Therefore, in this study, we analyzed and compared the total IgG glycome—at the level of individual glycan structures and derived glycosylation traits (sialylation, galactosylation, fucosylation, and bisecting N-acetylglucosamine (GlcNAc))—of 64 patients with influenza, 77 patients with coronavirus disease 2019 (COVID- 19), and 56 healthy controls. Our study revealed a significant decrease in IgG galactosylation, sialylation, and bisecting GlcNAc (where the latter shows the most significant decrease) in deceased COVID-19 patients, whereas IgG fucosylation was increased. On the other hand, IgG galactosylation remained stable in influenza patients and COVID-19 survivors. IgG glycosylation in influenza patients was more time-dependent: In the first seven days of the disease, sialylation increased and fucosylation and bisecting GlcNAc decreased ; in the next 21 days, sialylation decreased and fucosylation increased (while bisecting GlcNAc remained stable). The similarity of IgG glycosylation changes in COVID-19 survivors and influenza patients may be the consequence of an adequate immune response to enveloped viruses, while the observed changes in deceased COVID-19 patients may indicate its deviation.

Aim To investigate clinical and prognostic associations of red cell distribution width (RDW) in hospitalized coronavi - rus disease 2019 (COVID-19) patients. Methods We retrospectively analyzed the records of 3941 consecutive COVID-19 patients admitted to a tertiary-level institution from March 2020 to March 2021 who had avail - able RDW on admission. Results The median age was 74 years. The median Charl - son comorbidity index (CCI) was 4. The majority of pa - tients (84.1%) on admission presented with severe or criti - cal COVID-19. Patients with higher RDW were significantly more likely to be older and female, to present earlier dur - ing infection, and to have higher comorbidity burden, worse functional status, and critical presentation of COVID-19 on admission. RDW was not significantly associated with C-re - active protein, occurrence of pneumonia, or need for oxy - gen supplementation on admission. During hospital stay, patients with higher RDW were significantly more likely to require high-flow oxygen therapy, mechanical ventilation, intensive care unit, and to experience prolonged immobi - lization, venous thromboembolism, bleeding, and bacte - rial sepsis. Thirty-day and post-hospital discharge mortality gradually increased with each rising RDW percent-point. In a series of multivariate Cox-regression models, RDW demon - strated robust prognostic properties at >14% cut-off level. This cut-off was associated with inferior 30-day and postdischarge survival independently of COVID-19 severity, age, and CCI; and with 30-day survival independently of COVID severity and established prognostic scores (CURB-65, 4Cmortality, COVID-gram and VACO-index). Conclusion RDW has a complex relationship with COVID19-associated inflammatory state and is affected by prior comorbidities. RDW can improve the prognostication in hospitalized COVID-19 patients.

Background Survival after out-of-hospital cardiac arrest (OHCA) is still low. For every minute without resuscitation the likelihood of survival decreases. One critical step is initiation of immediate, high quality cardiopulmonary resuscitation (CPR). The aim of this subgroup analysis of data collected for the European Registry of Cardiac Arrest Study number 2 (EuReCa TWO) was to investigate the association between OHCA survival and two types of bystander CPR namely: chest compression only CPR (CConly) and CPR with chest compressions and ventilations (FullCPR). Method In this subgroup analysis of EuReCa TWO, all patients who received bystander CPR were included. Outcomes were return of spontaneous circulation and survival to 30-days or hospital discharge. A multilevel binary logistic regression analysis with survival as the dependent variable was performed. Results A total of 5884 patients were included in the analysis, varying between countries from 21 to 1444. Survival was 320 (8%) in the CConly group and 174 (13%) in the FullCPR group. After adjustment for age, sex, location, rhythm, cause, time to scene, witnessed collapse and country, patients who received FullCPR had a significantly higher survival rate when compared to those who received CConly (adjusted odds ration 1.46, 95% confidence interval 1.17–1.83). Conclusion In this analysis, FullCPR was associated with higher survival compared to CConly. Guidelines should continue to emphasise the importance of compressions and ventilations during resuscitation for patients who suffer OHCA and CPR courses should continue to teach both.

Aim : To investigate changes of anticoagulation therapy in patients with atrial fibrillation (AF) and high thrombotic risk.Methods : We retrospectively analyzed 1061 patients with non- valvular AF and indication for anticoagulation therapy referred in a period from 2013 to 2018 and followed-up for a median time of 38 months.Results : Therapy change occurred in 206 (19.5%) patients (195 switches and 11 permanent discontinuations). Only 37% of patients on warfarin had optimal dosing and their duration of therapy was significantly shorter compared to direct oral anticoagulants (DOACs ; (adjusted HR 1.21, 95% CI 1.09-1.37). Therapy change occurred in only 33% of patients with poorly controlled warfarin, and in only 24% of patients that experienced a thrombotic event while taking warfarin. Optimal dosing was an independent factor for any therapy change during follow-up, irrespective of type of anticoagulant drug at baseline. DOAC swapping occurred in 39% of all DOAC to DOAC switches, with one bleeding event and no thrombotic events documented after a DOAC swap.Conclusion : High risk patients with AF rarely discontinue anticoagulation therapy. The need for therapy change should be emphasized in patients with non-optimal dosing, and in patients that experience thrombotic events while taking warfarin.

Purpose To validate red cell distribution width (RDW) as an improvement in 30-day mortality risk stratification based on the Pulmonary Embolism Severity Index (PESI) in acute pulmonary embolism (PE). Patients and Methods Prospective observational analysis of consecutive adult acute PE patients. Results Among 731 patients, 30-day mortality was 11.9%. With adjustment for the PESI score and number of covariates, higher RDW was associated with higher mortality (RDW continuous: OR 1.21, 95% CI 1.06– 1.38 ; Bayesian OR 1.22, 1.07–1.40 ; RDW ‘high’ [>14.5% in men >16.1% in women] vs normal: OR 3.83, 1.98–7.46 ; Bayesian OR 3.98, 2.04–7.68]. Crude mortality was 3.6% if PESI 86–105 (intermediate risk), but 1.2% if RDW normal and 7.1% if RDW high ; 11.8% if PESI 106–125 (high risk), but 3.6% if RDW normal and 18.8% if RDW high. Adjusted probabilities showed higher mortality (ORs between 3.5–5.8) if RDW was high in any PESI risk subgroup. Crude mortality rates in two random-split subsets (n=365 and n=366) again showed the same patterns. Conclusions On-admission RDW above the normal range improves 30-day mortality risk stratification based on PESI score in acute PE. Particularly, it corrects PESI- based intermediate-risk or high-risk allocation by reclassification into very low-risk (11.0%).

OBJECTIVE: Stratifying patients with paroxysmal or short- term persistent atrial fibrillation (AF) who are at greater risk of developing permanent AF is challenging. Aim of our prospective study was to evaluate association of laboratory parameters (biochemistry and complete blood count (CBC)) together with standard demographic, clinical and echocardiography parameters, with AF progression. METHODS: We prospectively recruited 579 patients with AF and divided them into two groups at index hospitalization: paroxysmal or persistent (non- permanent AF), and long-term persistent or permanent AF patients (permanent AF). Clinical, echocardiographic, and relevant CBC parameters were collected. Non-permanent AF patients were selected for follow-up, with a median follow-up time of 21 months. Endpoint was progression to permanent AF. RESULTS: Out of 409 patients with non-permanent AF, 109 (26.6%) progressed within follow-up. In a multivariate Cox regression model only increased left atrium (LA) diameter (HR 2.16, 95% CI 1.20- 3.87, p = 0.010), and increased red cell distribution width (RDW ; HR 1.19, 95% CI 1.03- 1.39, p = 0.022) showed significant independent association with progression. There were 221/409 patients with both LA ≤45 mm and RDW level ≤14.5% who progressed at a rate of only 17.6%, and showed relative risk of AF progression of 0.47 (95% CI 0.34-0.67 ; p < 0, 001). CONCLUSION: Together with LA size, RDW was independently associated with AF progression. Patients with both LA size ≤45 mm and RDW level ≤14.5% are most probably the best candidates for rhythm control strategies.

Aim: To investigate the differences in the characteristics and clinical outcomes of recently diagnosed patients with atrial fibrillation (AF) receiving different types of anticoagulants in a real-life setting. ----- Methods: We retrospectively analyzed the charts of 1000 consecutive patients with non-valvular AF diagnosed at our institution or referred it to from 2013 to 2018. ----- Results: Over the observed period, the frequency of direct oral anticoagulation (DOAC) therapy use significantly increased (P = 0.002). Patients receiving warfarin had more unfavorable thromboembolic and bleeding risk factors than patients receiving DOAC. Predetermined stroke and major bleeding risks were similarly distributed among the dabigatran, rivaroxaban, and apixaban groups. Patients receiving warfarin had shorter time-to-major bleeding (TTB), time to thrombosis (TTT), and overall survival (OS) than patients receiving DOACs. After adjustment for factors unbalanced at baseline, the warfarin group showed significantly shorter OS (hazard ratio 2.27, 95% confidence interval 1.44-3.57, P

Background: Pulmonary embolism (PE) severity index (PESI) well predicts 30-day mortality in acute PE patients, yet improvements have been advocated. ----- Objectives: To evaluate predictivity of the red cell distribution width (RDW) through a comparison with PESI and to explore their interaction as a potential improvement in this respect. ----- Methods: Retrospective analysis of consecutive adult PE patients. ----- Results: Of the 299 patients, 19 severely unstable died within 48 h. Among the stabilized patients, 30-day mortality was 12.1% (34/280). With PESI ≤125, mortality was 4.9% (9/185), but it was 0.7% (1/140) if RDW ≤15.0% and 17.8% (8/45) if RDW >15.0%; with PESI >125, mortality was 26.3% (25/95), but it was 15.9% (7/44) if RDW ≤15.0% and 35.3% (18/51) if RDW >15.0%. Adjusted relative risk with PESI >125 vs. ≤125 was 17.5 (95%CI 2.37-129) at RDW ≤15.0% and 1.60 (0.76-3.36) at RDW >15.0%. ----- Conclusions: Thirty-day mortality predictions based on the PESI score may be improved by accounting for RDW.