The presence of adverse atherosclerotic coronary plaque features is associated with diabetes

Funding Acknowledgements

Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The grant was given to the Bioimaging field of Semmelweis University by the Excellence Program of the Ministry of Innovation and Technology in Hungary.

On Behalf of

Cardiovascular Imaging Research Group (CIRG)

Introduction

Diabetes mellitus (DM) is associated with increased cardiovascular morbidity and mortality. However, there is a lack of data about the prevalence of high-risk coronary artery plaques in patients with DM.

Purpose

In our study we aimed to compare the prevalence of adverse atherosclerotic coronary artery plaque features between patients with and without DM.

Methods

We have analyzed the data of patients who underwent coronary computed tomography angiography (CCTA) between October 2012 and December 2020. Our exclusion criteria were coronary anomaly, congenital or other structural heart disease, previous revascularization or heart transplantation, non-diagnostic image quality and no available data on the presence of DM. Patients were divided into two groups based on the presence of DM.

Results

In total, 11357 patients (47.6% men) were included in our study. Prevalence of DM was 14.5%. There were significant differences in age (63.2 ± 9.5 vs 58.1 ± 12.2 years, p < 0.001) and major cardiovascular risk factors such as hypertension, dyslipidemia and smoking between the two groups (all p < 0.05). We have measured higher coronary artery calcium score in patients with DM vs. without DM  (424.3 ± 744.0 vs 174.2 ± 794.6, p < 0.001). Luminal stenosis >70% was more frequent in the DM group (24.6% vs 10.5%, p < 0.001). While 29.6% of patients without DM had at least one high risk plaque, this rate was 38.9% in those with DM (positive remodeling: 19.6% vs 26.1%, low attenuation: 7.6% vs 10.2%, spotty calcium: 16.9% vs 21.6%, napkin-ring sign: 1.7% vs 2.6%, all p < 0.05).

Conclusions

The prevalence of severe coronary artery stenosis and coronary plaques with adverse characteristics was higher in patients with DM.

Orientation of the right superior pulmonary vein affects outcome after pulmonary vein isolation

Funding Acknowledgements

Type of funding sources: None.

Aims

Controversial results have been published regarding the influence of pulmonary vein (PV) anatomical variations on outcomes after pulmonary vein isolation (PVI). However, no data is available on the impact of PV orientation on the long-term success rates of point-by-point PVI. We sought to determine the impact of PV anatomy and orientation on atrial fibrillation (AF)-free survival in patients undergoing PVI using the radiofrequency point-by-point technique.

Methods and results

We retrospectively included 448 patients who underwent initial point-by-point radiofrequency ablation for AF at our department. Left atrial CT-angiography (CTA) was performed before each procedure. PV anatomical variations, ostial parameters (area, effective diameter and eccentricity), orientation and their associations with 24-month AF-free survival were analyzed. PV anatomical variations and ostial parameters were not predictive for AF-free survival (all p > 0.05). Univariate analysis showed that female sex (p = 0.025) was associated with higher rates of AF recurrence, ventral-caudal (p = 0.002), dorsal-cranial (p = 0.034) and dorsal-caudal (p = 0.042) orientation of the right superior PV (RSPV), on the other hand, showed an association with lower rates of AF recurrence, as compared to the reference ventral-cranial orientation. On multivariate analysis, both female sex [odds ratio(OR) 1.83, 95% CI 1.15-2.93, p = 0.011] and ventral-caudal RSPV orientation, compared with ventral-cranial orientation, proved to be independent predictors of 24-month AF recurrence (OR 0.37, 95% CI 0.19-0.71, p = 0.003).

Conclusion

  Female sex and ventral-caudal RSPV orientation have an impact on long-term arrhythmia-free survival. Assessment of PV orientation may be a useful tool in predicting AF-free survival and may contribute to a more personalized management of AF.

Abutting left atrial appendage and left superior pulmonary vein predicts recurrence of atrial fibrillation after point-by-point pulmonary vein isolation

Funding Acknowledgements

Type of funding sources: None.

Background

Catheter ablation is the cornerstone for rhythm control in patients with drug-refractory atrial fibrillation (AF). Baseline predictors of AF recurrence after catheter ablation are well established, such as female gender and left atrial enlargement. The role of the spatial relationship between the left superior pulmonary vein (LSPV) and left atrial appendage (LAA) is unknown.

Purpose

We sought to evaluate whether juxtaposed LSPV and LAA plays a role in AF recurrence after catheter ablation for paroxysmal AF.

Methods

Consecutive patients, who underwent point-by-point radiofrequency catheter ablation for paroxysmal AF at our hospital between January of 2014 and December of 2017, were enrolled in the study. All patients underwent pre-procedural cardiac CT-angiography (CTA) for the assessment of left atrial (LA) and pulmonary vein (PV) anatomy. Abutting LAA-LSPV was defined as cases when LSPV touched the posterior aspect of LAA (distance less than 2 mm).

Results

We included 428 patients (60.7 ± 10.8 years, 35.5% female). AF recurrence rate was 33.4% with a median recurrence-free time of 21.2 (IQR = 8.8-43.0) months. In the univariate analysis, female sex (HR = 1.45; 95%CI = 1.04-2.01; p = 0.028), LA volume (HR = 1.01; 95%CI = 1.00-1.01; p = 0.042), and cases when LSPV touched the posterior wall of LAA (HR = 1.53; 95%CI = 1.09-2.14; p = 0.013) were associated with AF recurrence. In the multivariate analysis, female sex (adjusted HR = 1.55; 95%CI = 1.06-2.28; p = 0.024), LA volume (adjusted HR = 1.01; 95%CI = 1.00-1.02; p = 0.028), and abutting LAA-LSPV (adjusted HR = 1.60; 95%CI = 1.13-2.50; p = 0.008) remained significant predictors of AF recurrence.

Conclusion

Female gender, higher LA volume, and abutting LSPV and LAA predispose patients to have a higher chance for arrhythmia recurrence after catheter ablation for paroxysmal AF.

(Pharmaco)economic evaluations for mental health related services: the PECUNIA project

Background

Mental health disorders affect large proportions of the general public resulting in serious cost consequences even beyond the health care sector. The PECUNIA project (EU H2020 grant agreement No 779292) aims to establish standardised costing and outcome assessment measures for optimised healthcare provision in the EU for multi-sectoral, multi-national and multi-person (pharmaco)economic evaluations using selected mental health disorders as illustrative examples.

Methods

Harmonised Identification, Definition, Measurement and Valuation of service costs in multiple sectors (health care, social care, criminal justice, education, productivity, patient, family). Reviews and surveys of mental health related services and other resource use in six European countries (AT, DE, ES, HU, NL, UK) to develop a new harmonised costing concept and related tools.

Results

We identified many taxonomical and conceptual discrepancies which currently hinder harmonized costing efforts and comparability of economic evaluations/HTAs across countries and sectors. The 'PECUNIA care atom', a new multi-sectoral costing concept forms the basis of resource item classification and international coding of mental health related services using the DESDE-PECUNIA system. Linked, harmonized tools such as the PECUNIA-European Resource Use Measurement instrument and the PECUNIA-European Reference Unit Costing Templates have been developed and are currently deployed in six countries to establish a PECUNIA-European Unit Cost Compendium alongside pan-European outcome evaluation methods.

Conclusions

The PECUNIA tools will lead to better understanding of the variations in costs and outcomes of mental health services/interventions within and across countries, and improve the feasibility, quality, comparability and transferability of (pharmaco)economic evaluations and HTAs in Europe. They also allow the harmonized measurement of broader economic and societal impacts of mental health services.

Key messages

The PECUNIA project developed compatible European multi-sectoral, multi-national and multi-person costing and outcome assessment tools. Methods & tools allow the harmonised measurement of broader economic & societal impacts of mental health related services, and improve the transferability & comparability of economic evaluations/HTAs.

Is the EU ready for a generic set of indicators for health system performance? A qualitative study

Background

As part of the EU funded BRIDGE Health project, 23 headline indicators for assessing and comparing the performance of public health systems were proposed. They were shortlisted out of the currently existing and often overlapping pool of over 2000 health system performance assessment (HSPA) indicators. In this qualitative study, we explored their validity and perceived national-level utility for policy making and factors affecting the potential uptake of an indicator hierarchy (headline, operational & explanatory levels) at Member States' and EU levels.

Methods

Semi-structured interviews with a purposive sample of 24 policy makers and senior policy advisors from 15 EU Member States and one candidate country were performed between July and November 2018. All interviews were transcribed and coded using summative and directed content analysis to generate thematic categories in MAXQDA.

Results

Preliminary results suggest that experts positively perceived the overall balance of the shortlist across performance domains reflecting most of the important policy areas. However, some further amendments to the generic set of indicators were recommended to increase their policy relevance and measurement validity while keeping the size manageable. The concept and usage of headline HSPA indicators is mostly viewed as a communication tool whereas more granular information at explanatory levels is perceived to be more appropriate for data driven policymaking and cross-country learning.

Conclusions

Interviews showed a considerable heterogeneity in the feasibility of applying a generic HSPA framework in an EU-wide health strategy as a compass for improvement through comparisons of health systems. Factors such as flexibility in adaptation to the national context, improvement in building knowledge capacity, potential misinterpretation in the 'European Semester' context, as well as lack of appropriately defined benchmarks were recurrent themes in hindering its uptake.

Key messages

Policy makers assess explanatory level indicators to be more actionable than headline level indicators. To facilitate the use of headline indicators at EU-level as a navigation tool for health systems, the list has to be stable to create trends and sufficiently flexible in adapting to new priorities.

Reducing the knowledge to action gap in hospital nutrition care - Developing and implementing nutritionDay 2.0

BACKGROUND & AIMS

In hospital nutrition care the difficulty of translating knowledge to action often leads to inadequate management of patients with malnutrition. nutritionDay, an annual cross-sectional survey has been assessing nutrition care in healthcare institutions in 66 countries since 2006. While initial efforts led to increased awareness of malnutrition, specific local remedial actions rarely followed. Thus, reducing the Knowledge-to-action (KTA) gap in nutrition care requires more robust and focused strategies. This study describes the strategy, methods, instruments and experience of developing and implementing nutritionDay 2.0, an audit and feedback intervention that uses quality and economic indicators, feedback, benchmarking and self-defined action strategies to reduce the KTA gap in hospital nutrition care.

METHODS

We used an evidence based multi-professional mixed-methods approach to develop and implement nutritionDay 2.0 This audit and feedback intervention is driven by a Knowledge-to-Action framework complemented with robust stakeholder analysis. Further evidence was synthesized from the literature, online surveys, a pilot study, World Cafés and individual expert feedback involving international health care professionals, nutrition care scientists and patients.

RESULTS

The process of developing and implementing nutritionDay 2.0 over three years resulted in a new audit questionnaire based on 36 nutrition care quality and economic indicators at hospital, unit and patient levels, a new action-oriented feedback and benchmarking report and a unit-level personalizable action plan template. The evaluation of nutritionDay 2.0 is ongoing and will include satisfaction and utility of nutritionDay 2.0 tools and short-, mid- and long-term effects on the KTA gap.

CONCLUSION

In clinical practice, nutritionDay 2.0 has the potential to promote behavioural and practice changes and improve hospital nutrition care outcomes. In research, the data generated advances knowledge about institutional malnutrition and quality of hospital nutrition care. The ongoing evaluation of the initiative will reveal how far the KTA gap in hospital nutrition care was addressed and facilitate the understanding of the mechanisms needed for successful audit and feedback.

TRIAL REGISTRATION

Registration in clinicaltrials.gov: Identifier: NCT02820246.

Implementing Cost-effective Co-treatment of Domestic and Food-industrial Wastewater by Novel Methods for Estimating Industrial Load

Detection and characterization of hidden industrial inflows causing high fluctuations of the inlet load, is a challenging issue pushing plant operators for a cost-effective solution at regional wastewater treatment plants (WWTPs). On the other hand, carbon source of food industrial origin may have a good use at WWTPs facing otherwise inlet carbon source deficiency.In a case study of a regional domestic WWTP receiving seasonally organic carbon-rich discharge from a fruit juice factory, a new method combining on-site measurements and mathematical modelling was developed and successfully applied for estimating the quality and quantity of both industrial influent load and incoming domestic wastewater streams properly. The originally un-staged bioreactor system operated at low dissolved oxygen (low DO) concentration was unable to meet effluent nitrogen requirements with an additional constant risk of encouraging filament growth. A novel screening method based on special sampling campaigns for estimating carbon availability and C:N ratios of influent wastewater streams coming separately from the large catchment area, was developed and applied. Staging of the previously low DO basins into a flexible system containing non-aerated selectors proved to be efficient for enhancing both biological nitrogen removal and sculpturing appropriately settling biomass.

Duplicate Prescriptions of Inhaled Medications for Obstructive Lung Diseases

INTRODUCTION

 Inhalative treatments with metered dose aerosols and dry powder inhalers are the backbone of the pharmacotherapy for asthma and COPD. In the last decade many new and generic inhalative bronchodilators were launched at the German market, both monotherapies and fixed dose double bronchodilator (LABA/LAMA, beta adrenergic and antimuscarinic) or LABA and inhaled corticosteroid (ICS) and triple (LABA/LAMA/ICS) combinations. According to two surveys in 2015 among respiratory physicians we expected a high proportion of patients receiving duplicate prescriptions, e. g. a fixed dose new LABA/LAMA combination in addition to an existing ICS/LABA fixed dose combination.

METHODOLOGY

 We searched the database of a large mail order pharmacy (DocMorris) to identify duplicate prescriptions of inhalative drugs for a patient by the same or by two or more different physicians during a 3 months period.

RESULTS

 Unexpectedly, we found as little as around 1 % duplicate prescriptions for the same patient. Duplicate prescriptions involving combination products were found to be much more common than duplicate prescriptions of different mono-products. Irrespective the low percentage number of all prescriptions we saw in just one large mail order pharmacy several thousands of erroneous prescriptions.

CONCLUSION

 At least in the setting of this mail order pharmacy duplicate (i. e. contraindicated and potentially dangerous) prescriptions are relatively rare. Prescribers and pharmacists should be aware of the issue of duplicates - especially when prescribing or filling prescriptions with combination products.

The emerging specialty of perioperative medicine: a UK survey of the attitudes and behaviours of anaesthetists

Background

In 2014, the Royal College of Anaesthetists (RCoA) launched the Perioperative Medicine Programme to facilitate the delivery of best preoperative, intraoperative and postoperative care through implementation of evidence-based medicine to reduce variation and improve postoperative outcomes. However, variation exists in the establishment of perioperative medicine services in the UK. This survey explored attitudes and behaviours of anaesthetists towards perioperative medicine, described current anaesthetic-led perioperative medicine services across the UK and explored barriers to anaesthetic involvement in perioperative medicine.

Methods

Survey content based on the RCoA vision document was refined and validated using an expert panel. An anonymous electronic survey was then sent by email to the members of the RCoA.

Results

Seven hundred fifty-eight UK anaesthetists (4.5% of the RCoA mailing list) responded to the survey. Of these, 64% considered themselves a perioperative doctor, with 65% having changed local services in response to the RCoA vision. Barriers to developing perioperative medicine included insufficient time (75%) and inadequate training (51%). Three quarters of respondents advocate anaesthetists leading the development of perioperative medicine.

Conclusions

Despite evidence of emerging services, this survey describes barriers to ongoing development of perioperative medicine. Facilitators may include increased clinical exposure, targeted education and training and collaborative working with other specialties.

P1831 Predictors and clinical consequences of silent ischaemic brain lesions following transcatheter aortic valve implantation

Funding Acknowledgements

This study was supported by the János Bolyai Scholarship of the Hungarian Academy of Sciences

Background

A number of studies aimed to identify the predictors of periprocedural cerebral embolizations related to transcatheter aortic valve implantation (TAVI). Much less investigated is the prevalence and determinants of subacute ischaemic brain lesions that develop following TAVI.

Purpose

We sought to identify predictors of subacute clinically silent ischaemic brain lesions in patients following TAVI.

Methods

Patients were included from the Rule out Transcatheter Aortic Valve Thrombosis with Post Implantation Computed Tomography (RETORIC) prospective trial. Echocardiography and brain MRI were performed after TAVI procedure, before hospital discharge. Cardiac CT was performed 6 months later to identify subclinical leaflet thrombosis (HALT), as well as repeat brain MRI, to identify any silent ischaemic lesions that appeared since the intervention. The cognitive trajectory of patients was assessed using the Addenbrookes cognitive test (ACE), performed shortly after TAVI and at 6-month follow-up (FU). All-cause mortality data was retrieved from the National Mortality Database.

Results

79 consecutive patients were included in the present analysis. 28% had known history of atrial fibrillation (AF). 33% of the cohort was treated with oral anticoagulant, of these 56% with single and 25% with dual antiplatelet therapy (DAPT). The mean CHA2DS2VASC score was 4. From discharge to the 6-month FU, 20 patients (25%) developed new silent ischaemic brain lesions on MRI. Clinically manifest stroke did not occur. On the 6-month CT, HALT was identified in 6 patients (8%). Clinical and imaging parameters, including age, body mass index, hypertension, dyslipidaemia, diabetes, smoking, statin-, OAC- and DAPT therapy, history of AF, history of stroke, echocardiographic metrics of left ventricular (ejection fraction, stroke volume index) and atrial (left atrial strain) function as well as HALT were analysed for association with ischaemic brain lesions. Of the above, only HALT showed significant association (OR:6,58; p = 0.04) with silent brain embolizations. The cognitive trajectory from discharge till 6-month FU did not differ between patients with or without ischaemic focuses (ΔACEscore: 1.0 vs. 0.1; p = NS). Over a median FU of 553 (IQR 453 – 665) days, 8 patients died; 2 with and 6 without ischaemic lesions. Kaplan-Meyer analysis showed no difference in outcome between the two groups (p = 0.68)

Conclusion

Subclinical leaflet thrombosis was identified as a significant predictor of subacute silent ischaemic brain lesions after TAVI. These lesions did not affect the overall cognitive performance or outcome of the patients.

Equivalence of Assurance® Gold Enzyme Immunoassay for Visual or Instrumental Detection of Motile and Nonmotile Salmonella in All Foods to AOAC Culture Method: Collaborative Study

Six foods representative of a wide variety of processed, dried powder processed, and raw food types were analyzed by the Assurance® Gold Salmonella Enzyme Immunoassay (EIA) and AOAC INTERNATIONAL culture method. Paired samples of each food type were simultaneously analyzed; one sample by the Assurance method and one by the AOAC culture method. The results for Assurance method were read visually and instrumentally with a microplate reader. A total of 24 laboratories representing federal government agencies and private industry, in the United States and Canada, participated in this collaborative study. Food types were inoculated with species of Salmonella with the exception of raw ground chicken, which was naturally contaminated. No statistical differences (p < 0.05) were observed between Assurance Gold Salmonella EIA with either visual or instrumental interpretation and the AOAC culture method for any inoculation level of any food type or naturally contaminated food. The Assurance visual and instrumental options of reading sample reactions produced the same results for 1277 of the 1296 sample and controls analyzed.