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Funding Acknowledgements Type of funding sources: None. Background The prevalence of young patients with cardiac implantable electronic devices (CIED) is continuously rising. Along with this development there is a concomitant increase in the incidence of CIED-related complications, such as device-related infections and lead failure. Transvenous lead extraction (TLE) has evolved into an indispensable therapeutic option for such cases. Aim The aim of this study was to analyze patient characteristics and procedural outcomes of young patients undergoing TLE and to identify independent risk factors for adverse events. Methods We performed a subgroup analysis of all patients in the GALLERY (GermAn Laser Lead Extraction RegistrY) who were 45 years or younger at the time of enrollment. Predictor variables for all-cause mortality, procedural complications and procedural failure were assessed via multivariate analyses. Results We identified 160 patients (6.3% of the GALLERY) aged 45 years or younger with a mean age of 35.3±7.6 years and 42.5% (n=68) female patients. Mean body mass index was 25.6±5.4 kg/m2 and the proportion of patient with highly reduced ejection fraction (LVEF Conclusion Transvenous lead extraction in young patients is safe and effective with a procedure-related mortality rate of 0.0%. All-cause mortality was mainly driven by patients succumbing to CIED-related sepsis, despite successful extraction. Chronic kidney disease and lead age ≥10 years are relevant risk factors in young patients undergoing TLE.

Funding Acknowledgements Type of funding sources: None. Background Both, the prevalence of obesity and incidence of cardiac implantable electronic device (CIED)-related complications are increasing worldwide. Transvenous laser lead extraction is a way to meet the rising complexity of cases, but knowledge about the impact of body-mass-index (BMI) on this procedure is limited. Methods and Results All patients in the GALLERY (GermAn Laser Lead Extraction RegistrY) database were stratified by BMI in accordance to the World Health Organization (WHO) definition. Patient characteristics, as well as procedural outcomes were analyzed. Within the group of obese patients (BMI ≥30kg/m2), predictors for adverse outcomes (procedural failure, complications, all-cause mortality) were assessed. A total of 2524 patients were divided into 5 groups (Underweight: BMI 35.0 kg/m2). Most patients (46.6%) were overweight (BMI 25.0-29.9kg/m2). The prevalence of metabolic comorbidities, such as arterial hypertension (84.2%; p Conclusion Laser lead extraction (LLE) in obese patients did not show higher rates of complications. Procedural time as well as duration of hospitalization was not prolonged. With considerate planning and in experienced centers, LLE is a safe and efficacious option for this patient collective. Systemic infection is the main driver of mortality in obese patients with BMI ≥ 30 kg/m2.

Funding Acknowledgements Type of funding sources: None. Background In an aging population with cardiac implantable electronic devices (CIED), an increasing number of octogenarians and even nonagenarians present for lead extraction procedures. Those patients are considered as having an increased risk for surgical procedures including lead extraction. Purpose We here investigated in a large patient cohort safety and efficacy of transvenous lead extraction with powered extraction sheaths in octo- and nonagenerians. Methods A subgroup analysis of the German Laser Lead Extraction Registry (GALLERY) registry was performed. 499 patients were aged ≥80 years and included in this analysis. Primary extraction method was Laser lead extraction, with additional use of mechanical rotational sheaths or femoral snares, if necessary. Predictors for complications and mortality were evaluated in multivariate analysis. Results Mean patients age was 84.3±3.7 years, 27.1% were female. 1196 leads were treated. The median lead dwell time was 118.0 (78;167) months. Clinical procedural success rate was achieved in 97.6% of the cases. Procedural failure was observed in 2.1%. Overall complication rate was 4.4%, including 1.8% major- and 2.6% minor complications. BMI Conclusion Laser lead extraction in octo- and nonagenarians, is safe and effective. BMI BMI≤20 kg/m2 was the only statistically significant predictor for procedural complications. According to our data, advanced age should not be considered as contraindication for laser lead extraction.

Funding Acknowledgements Type of funding sources: None. Background Implantable cardioverter defibrillators (ICDs) and cardiac resynchronization therapy (CRT) are widely used in patients with life-threatening cardiac arrhythmias or systolic heart failure. Real world data regarding gender impact on ICD and CRT implantation and outcome is scarce. Purpose To investigate the impact of gender-specific differences on cardiac devices implantation and outcomes. Methods The German DEVICE registry is a nationwide prospective multicentre database of ICD and CRT devices implantation. A total of 5451 patients were prospectively enrolled in 44 centres between March 2007 and February 2014 and were monitored for a median of 17 months. Results A minority of patients in this registry was female 1050 (19.3%; mean age 64.4 ± 14.6 years; median BMI 27.2) while men represented 80.7% (mean age 65.5 ± 12.4 years; median BMI 26.8). Female patients were less likely to have a LVEF 55% (13.3% vs. 6.6%; p Similar rates of primary and secondary prevention indication were noted for female and male patients (p=0.9717). There was no difference between the groups regarding the need of postprocedural system revision (p=0.7884), as well as in-hospital death, cardiac death, or sudden cardiac death. The non-fatal complications during follow-up were comparable for men and women. Moreover, similar rates and durations of all cause and cardiac rehospitalizations were found (p=0.1644 and p= 0.1816). Conclusion In this real-life patient cohort only a minority of female patients were enrolled. Female patients were more likely to undergo CRT implantation and had a higher risk for acute major periprocedural complications and in-hospital complications but a lower overall mortality in 1-year follow-up. However, the differences in baseline characteristics should be considered as potential confounders.

Funding Acknowledgements Type of funding sources: None. Background Permanent pacemaker implantation (PPI) for high degree atrio-ventricular block (AVB) is common in patients after transcatheter aortic valve replacement (TAVR). There is still no clear recommendation regarding the optimal timing of PPI and programming of the pacemakers (PM) in these patients. Methods Data of all 1363 patients who underwent TAVR in our center between July 2019 and September 2022 was included in this retrospective study. In patients with high degree AVB a PPI was performed either in the same procedure or at least within 24 h after TAVR. All patients underwent a PM-interrogation before discharge. Results A permanent PM was implanted in 122 of 1363 (9%) patients with a mean age of 82 years. AVB that required PPI occurred in 9.2% (100/1087) of the patients with a self-expandable (SE) valve and in 8% (22/276) of the patients with a balloon expandable (BE) valve. In 34 patients PPI was performed in the same TAVR procedure, and 88 patients were treated in an average of 3.5 days after TAVR. Right-sided PM was implanted in 27 out of the 34 (79.4%) intra-procedural cases and in 3 of the 88 (3.4%) post-procedural cases. No major complications were reported. Two revision procedures were performed due to lead dislodgements in both groups respectively [(2/34 (5.9%); 2/88 (2.3%)]. Two pneumothoraces (2/88, 2.3%) were reported in the post-procedural PPI patients. The overall complication rate was 4.9 % (6/122). The AV-conduction showed recovery in 37 Patients (37/122, 30%) during the first interrogation in an average of 2.1 days after TAVR [(9/34(26.5%); 28/88 (31.8%)]. The AV-hysteresis was programmed in 48 out of the 94 implanted dual chamber pacemakers during the first interrogation. The average length of stay in hospital in patients with intra-procedural PPI and in those who underwent PPI in a second procedure was 13.7 and 14 days respectively with no significant difference between both groups (p>0.05). Conclusion Intra-procedural PPI was not associated with significant reduction of in hospital stay. The percentage of AV-conduction recovery after TAVR was high, even in short term follow up. Patients could benefit from a longer monitoring to avoid PPI and programming of AV-hysteresis during the first interrogation in these population should be recommended. Randomized and long-term follow up data are needed.

ZusammenfassungEmpirische Befunde zeigen, dass die Unterrichtswahrnehmung von Schüler*innen individuell stark variiert. Solche Wahrnehmungsunterschiede werden dabei auch von dispositionalen motivational-affektiven Merkmalen der Lernenden erklärt. Die vorliegende Studie analysiert unter Verwendung eines personenzentrierten Ansatzes die Bedeutung des situationalen und dispositionalen Interesses von Schüler*innen für ihre Wahrnehmung der Unterrichtsqualität im Fach Mathematik. Basierend auf Daten einer Studie mit 940 Schüler*innen der 8. Jahrgangsstufe werden vier charakteristische Schüler*innenprofile identifiziert: Schüler*innen mit konsistent hohen bzw. konsistent niedrigen Ausprägungen im situationalen und dispositionalen Interesse sowie Schüler*innen mit Mischprofilen bestehend aus einem hohen situationalen und gleichzeitig niedrigem dispositionalen Interesse bzw. umgekehrt. Die Befunde zeigen, dass Schüler*innen, die über konsistent positive motivational-affektive Voraussetzungen oder über ein hohes situationales Interesse verfügen, die Unterrichtsqualität signifikant positiver einschätzen, als Schüler*innen mit weniger günstigen Profilen des situationalen und dispositionalen Interesses. Die Studie bekräftigt damit auch vor allem die Bedeutung des situationalen Interesses für die Analyse von Unterrichtsprozessen.

Background Pulsed field ablation (PFA) is a novel non-thermal energy source to conduct catheter ablation of atrial fibrillation (AF). However, real-world multi-center data regarding acute procedural efficacy and safety is sparse. Purpose To study acute procedural success and safety in patients undergoing PFA for catheter ablation of AF in a multicenter registry. Methods Consecutive paroxysmal and persistent AF patients undergoing PFA-based catheter ablation using a multispline catheter were enrolled. The cohort included first and repeat ablation procedures. Procedural parameters, acute success and in-hospital safety were evaluated. A follow-up of all patients was conducted. Results Five German centers enrolled a total of 154 patients undergoing PFA in this study. Mean age was 68±12 years, median CHA2DS2-VASc Score was 3 (Q1-Q3: 2–4). Patients suffered from paroxysmal AF (n=55; 36%), persistent AF (n=93; 60%) and consecutive atrial tachycardias (AT) due to previous CA (n=6; 4%). The median left atrial (LA) PFA and total procedure times were 33 (Q1-Q3: 24–53) and 90 (Q1-Q3: 73–116) minutes, respectively. Mean LA PFA fluoroscopy and total fluoroscopy times were 12.1±5.5 and 20.2±8.7 minutes. Of all 154 procedures, 130 (84%) were index ablation procedures with isolation of pulmonary veins (PVI) only and 24 (16%) were repeat procedures (including re-PVI and ablation of consecutive AT). Acute PV reconnection following primary PVI and the initial set of PFA-applications was found in 20/130 (15%) patients, necessitating additional PFA ablation. Finally, successful PFA-guided PVI was achieved in all patients. Additional PFA lesion sets (including LA posterior wall isolation, anterior ablation, mitral isthmus ablation) were applied in 17/154 (11%) patients. Complications occurred in a total of 6/154 (3.8%) patients (including three groin site complications, two pericardial tamponades, one transient coronary spasm without sequela). The follow up data is still being assessed and will be provided by the time of the ESC 2022 meeting. Conclusion PFA performed in patients with atrial fibrillation demonstrates high acute procedural success rates and a favorable safety profile in this first real-world multicenter registry. Funding Acknowledgement Type of funding sources: None.

Background The incidence and prevalence of atrial fibrillation (AF) increases with age. With an ageing general population, a 2.3-fold rise in AF prevalence is expected. Catheter ablation has emerged as an effective treatment option for rhythm control therapy. However, very elderly patients (≥80 years old) have been excluded in landmark clinical trials. Current data regarding the safety and efficacy of catheter ablation in the very elderly is therefore sparse. Purpose Due to the growing demand to manage AF in an increasingly ageing population, we investigated the safety and efficacy of catheter ablation in this particular patient population. Methods Patients with symptomatic paroxysmal, persistent and long-standing persistent AF aged ≥80 years undergoing catheter ablation, including first and re-ablation procedures in a single centre, were analysed retrospectively. Catheter ablation involved pulmonary vein isolation (PVI) using radiofrequency, cryoballoon and pulsed field ablation as energy sources. Re-ablation procedures included re-PVI and consecutive atrial tachycardia ablation including atrial lines and/or ablation of complex fractionated atrial electrograms (CFAE) in persistent AF. Endpoints included acute procedural success (complete isolation of pulmonary veins and/or non-inducibility in the case of atrial tachycardia), major complications and early arrhythmia-recurrence. Results A total of eighty-eight patients (mean age 83.1±1.9 years, mean CHA2DS2-VASc-Score 4.4±1, mean left ventricular ejection fraction 56.7±7%, direct oral anticoagulation 92.1%, vitamin-K antagonists 7.9%) were included from January 2021 to October 2021. Fifty cases (56.8%) involved PVI as an index procedure (radiofrequency 58%, n=29/50, cryoballoon 36%, n=18/50, pulsed field ablation 6%, n=3/50). Thirty-eight procedures (43.2%) involved re-ablation procedures (Re-PVI 60.5%, n=23/38, linear lesions 65.8%, n=25/38, atrial tachycardia ablation 26.3%, n=10/38 and ablation of CFAE 15.8%, n=6/38). Acute procedural success was achieved in 87/88 patients (98.9%). Major complications included stroke (n=1/88, 1.1%), pericardial tamponade (n=1/88, 1.1%) and bradycardia with subsequent pacemaker implantation (n=3/88, 3.4%). No further major complications were documented. In 13/88 patients (14.8%) early arrhythmia-recurrence occurred (38.5%, n=5/13 after the index procedure and 61.5%, n=8/13 after re-ablation) during the 90-day blanking period. Conclusions Catheter ablation for atrial fibrillation in the very elderly shows favourable acute success and low complication rates. Long term success of catheter ablation and superiority to rate control in this patient population is unknown and requires investigation in the future. Funding Acknowledgement Type of funding sources: None.

BACKGROUND: The prevalence of atrial fibrillation(AF) and diabetes mellitus is rising to epidemic proportions. We aimed to assess the impact of diabetes on the management and outcomes of patients with AF.METHODS: The EORP-AF General Long-Term Registry is a prospective, observational registry from 250 centres across 27 European countries. Outcomes of interest were as follows: i)rhythm control interventions; ii)quality of life; iii)healthcare resource utilisation; and iv)major adverse events.RESULTS: Of 11,028 patients with AF, the median age was 71 (63-77) years and 2537 (23.0%) had diabetes. Median follow-up was 24 months. Diabetes was related to increased use of anticoagulation but less rhythm control interventions. Using multivariable analysis, at 2-year follow-up, patients with diabetes were associated with greater levels of anxiety (p = 0.038) compared to those without diabetes. Overall, diabetes was associated with worse health during follow-up, as indicated by Health Utility Score and Visual Analogue Scale. Healthcare resource utilisation was greater with diabetes in terms of length of hospital stay (8.1 (±8.2) vs. 6.1 (±6.7) days); cardiology and internal medicine/general practitioner visits; and emergency room admissions. Diabetes was an independent risk factor of major adverse cardiovascular event (MACE; HR 1.26 [95% CI, 1.04-1.52]), all-cause mortality (HR 1.28 [95% CI, 1.08-1.52]), and cardiovascular mortality (HR 1.41 [95% CI, 1.09-1.83]).CONCLUSION: In this contemporary AF cohort, diabetes was present in 1 in 4 patients and it served as an independent risk factor for reduced quality of life, greater healthcare resource utilisation and excess MACE, all-cause mortality and cardiovascular mortality. There was increased use of anticoagulation therapy in diabetes but with less rhythm control interventions.

Objective: To assess the occurrence and associations of verbal and non-verbal care-resistant behaviour (CRB) during oral examination by a dental hygienist in nursing home residents with dementia. Background: CRB is a barrier to providing professional oral care and daily oral hygiene care. Understanding the predictors of CRB might help care professionals in learning to anticipate this behaviour. Methods: In this multicentre cross-sectional study signs of verbal and non-verbal CRB were reported during the oral examination. Data collection occurred in the psychogeriatrics wards of 14 different nursing homes in the Netherlands (N = 367). Results: A total of 367 residents were included. CRB was evident in 82 residents (22.3%), of whom 45 (55%) showed verbal and 37 (45%) non-verbal CRB. Associated with CRB were age >85 years, duration of residential stay longer than 2 years, and having Korsakov dementia. Other factors associated with CRB were duration of residential stay (categories “>2 and ≤4 years” or “>4 years”) and having a natural dentition (P =.043-.005, OR = 1.20-1.33, 95% CI = 1.00-8.48). Significant associations for verbal and non-verbal CRB were age between 76 and 85 years, vascular dementia and Korsakov dementia (P =.031-.006, OR =.020-1.49, 95% CI = 0.43-2.15). Conclusion: The occurrence of CRB was 22.3% and was associated with older age and longer duration of residential stay, Vascular and Korsakov dementia and natural dentition.

PURPOSE/OBJECTIVE(S): Precise segmentation of clinical target volumes (CTV) in breast cancer is indispensable for state-of-the art radiotherapy. Despite international guidelines, significant intra- and interobserver variability exists, negatively impacting treatment outcomes. The aim of this study is to evaluate the performance and efficiency of segmentation of CTVs in planning CT images of breast cancer patients using a 3D convolutional neural network (CNN) compared to the manual process. MATERIALS/METHODS: An expert radiation oncologist (RO) segmented all CTVs separately according to international guidelines in 150 breast cancer patients. This data was used to create, train and validate a 3D CNN. The network's performance was additionally evaluated in a test set of 20 patients. Primary endpoints are quantitative and qualitative analysis of the segmentation data generated by the CNN for each level specifically as well as for the total PTV to be irradiated. The secondary endpoint is the evaluation of time efficiency. RESULTS: In the test set, segmentation performance was best for the contralateral breast and the breast CTV and worst for Rotter's space and the internal mammary nodal (IMN) level. Analysis of impact on PTV resulted in non-significant over-segmentation of the primary PTV and significant under-segmentation of the nodal PTV, resulting in slight variations of overlap with OARs. Guideline consistency improved from 77.14% to 90.71% in favor of CNN segmentation while saving on average 24 minutes per patient with a median time of 35 minutes for pure manual segmentation. CONCLUSION: 3D CNN based delineation for breast cancer radiotherapy is feasible and performant, as scored by quantitative and qualitative metrics. ispartof: Radiotherapy And Oncology vol:171 pages:84-90 ispartof: location:Ireland status: published

Background/purpose Delineation of the lymph node levels of the neck for irradiation of the elective clinical target volume in head and neck cancer (HNC) patients is time consuming and prone to interobserver variability (IOV), although international consensus guidelines exist. The aim of this study was to develop and validate a 3D convolutional neural network (CNN) for semi-automated delineation of all nodal neck levels, focussing on delineation accuracy, efficiency and consistency compared to manual delineation. Material/methods The CNN was trained on a clinical dataset of 69 HNC patients. For validation, 17 lymph node levels were manually delineated in 16 new patients by two observers, independently, using international consensus guidelines. Automated delineations were generated by applying the CNN and were subsequently corrected by both observers separately as needed for clinical acceptance. Both delineations were performed two weeks apart and blinded to each other. IOV was quantified using Dice similarity coefficient (DSC), mean surface distance (MSD) and Hausdorff distance (HD). To assess automated delineation accuracy, agreement between automated and corrected delineations were evaluated using the same measures. To assess efficiency, the time taken for manual and corrected delineations were compared. In a second step, only the clinically relevant neck levels were selected and delineated, once again manually and by applying and correcting the network. Results When all lymph node levels were delineated, time taken for correcting automated delineations compared to manual delineations was significantly shorter for both observers (mean: 35 vs 52 min, p 85%). Manual corrections necessary for clinical acceptance were 1.4 mm MSD on average and were especially low ( 87%). Manual corrections necessary for clinical acceptance were 1.3 mm MSD on average. IOV was significantly smaller with automated compared to manual delineations (MSD: 0.8 mm vs 2.3 mm, p Conclusion The CNN developed for automated delineation of the elective lymph node levels in the neck in HNC was shown to be more efficient and consistent compared to manual delineation, which justifies its implementation in clinical practice.

Funding Acknowledgements Type of funding sources: Foundation. Main funding source(s): Stiftung Institut für Herzinfarktforschung Background The number of patients receiving cardiac resynchronization therapy (CRT) and implantable cardioverter-defibrillator (ICD) devices has been increasing in the last decades. Both CRT and ICD play an essential role in modern heart failure therapy. However, the implantation procedure might be ensued by serious complications. Therefore, knowledge about the prevalence of complications and identification of risk factors are key to improve patient care. Methods Between 2007-2014 the German DEVICE registry enrolled patients from 50 German centers undergoing ICD or CRT implantation. Patient characteristics, data on procedural outcome, adverse events and mortality during index hospitalization and follow-up at 1 year from discharge, were recorded. Patients who suffered from perioperative complications during or shortly after device implantation were identified for comparative analysis with patients without complications. Results Out of 4170 patients enrolled, 119 (2.9%) suffered from procedure related complications. The proportion of female patients suffering from perioperative complications was higher with 29.4%, compared to 18.5% of female patients without complications (p=0.003). There were neither any differences in age (66.3±13.6 vs. 65.4±12.5 years; p=0.13), nor in cardiac or non-cardiac comorbidities and in the indications for device implantation between groups. There was a trend towards a higher rate of complications with procedures on pre-existing devices (24,8 vs. 18.1%; p=0.064), than observed with de-novo implantations (75.2 vs. 81.9%; p=0.064). CRT implantations were more frequent among patients who suffered from complications (46.2 vs. 28.9%; p Conclusion The overall procedure-related complication rate following CRT or ICD implantation is low (2.9%). Among patients with complications female gender and patients receiving CRT devices were more prevalent. Perioperative device complications neither seem to translate into increased in-hospital mortality, nor in increased rates of further device-associated complications, rehospitalizations or death after 1-year follow-up.

Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): German Centre for Cardiovascular Research (DZHK) Background The sympathetic nervous system plays an integral role in cardiac physiology. Neuromodulation is emerging as a treatment option for ventricular arrhythmias, but selective intracardiac approaches are rare. Sympathetic nerve fibers innervating the left ventricle have been demonstrated to be amenable to transvenous catheter stimulation along the coronary sinus (CS). Purpose The aim of the present study was to modulate left ventricular control by selective sympathetic denervation using epicardial or standard catheter ablation for intracardiac axotomy at the level of the CS. Methods First, the impact of epicardial CS ablation on cardiac electrophysiology was studied in a Langendorff model of murine hearts (n=10 each, ablation and control). Second, the impact of transvenous, anatomically-driven axotomy by catheter-based radiofrequency ablation along the CS was evaluated in a healthy ovine in vivo model (n=8) before and during left stellate ganglion stimulation (LSGS). Results CS ablation for intracardiac sympathetic axotomy prolonged epicardial ventricular refractory period (VRP) without (41.8±8.4 ms vs. 53.0±13.5 ms; P=0.0487) and with beta1-2-adrenergic receptor blockade (47.8±2.8 ms vs. 73.1±5.0 ms; P=0.0009) and enhanced the increasing effect of beta1-2-adrenergic receptor blockade on epicardial VRP (∆VRP 6.3±7.0 ms vs. 20.0±7.5 ms; P=0.0045) in mice (Figure, A). Mean epicardial wave propagation velocity in the left ventricle was faster in ablated hearts than in controls (1.13±0.05 m/s vs. 1.00±0.02 m/s; P=0.0463), but did not differ in the right ventricle (1.15±0.05 m/s vs. 1.20±0.08 m/s; P=0.7938). Transvenous catheter ablation of the CS reduced systolic (SBP, 57.7±5.0 mmHg vs. 46.9±3.6 mmHg; P=0.0428) and diastolic blood pressure (DBP, 35.5±3.0 mmHg vs. 26.7±1.8 mmHg; P=0.0106) and diminished the blood pressure increase during LSGS in sheep (∆SBP 21.9±3.8 mmHg vs. 10.5±4.2 mmHg; P=0.0234; ∆DBP 9.0±1.9 mmHg vs. 3.0±1.2 mmHg; P=0.0391) (Figure, B, C). Cycle length remained unchanged by LSGS, both before (baseline 653.2±20.6 ms vs. LSGS 627.8±27.5 ms; P=0.2309) and after CS ablation (baseline 734.8±24.2 ms vs. LSGS 746.2±37.3 ms; P=0.7145). Conclusions Anatomically-driven axotomy targeting nerve fibers along the CS enables selective intracardiac sympathetic denervation resulting in acute modulation of left ventricular control.

Funding Acknowledgements Type of funding sources: None. Background Catheter ablation targeting isolation of the pulmonary veins (PVI) is the most effective treatment for atrial fibrillation (AF). Despite its high overall effectiveness, repeat AF ablations (re-do procedures, RDP) are often required to maintain sinus rhythm. Purpose Determine predictors for multiple and/or complex RDP, evaluate reference values for procedure duration and radiation exposure during index PVI (iPVI) and nth RDP in a large cohort. Methods and Results Data mining identified 934 (mean age 62.6 ± 12.3 years, 346 females) out of 6848 total AF ablation patients from a large German AF ablation center between 09/2008 and 09/2021 with an index PVI and at least one RDP. Analysis included 2152 procedures (out of 8750 total AF-related ablations). At iPVI, AF pattern was classified as paroxysmal AF (PAF) in 387 patients (41%). All others (59%) were classified as non-paroxysmal AF (Non-PAF). Non-PAF was significantly more frequent in males (64% vs. 49%, p iPVI was classified as PVI-only or PVI with additional substrate modification (SM). 724/934 patients (78%) received PVI-only as initial procedure. Of these, 572 (79%) had only 1 RDP, 116 (16%) had 2 RDP and 36 (5%) had 3 or more RDP. This distribution was 77%, 15% and 8% for 1, 2 and 3 or more RDP for patients with complex PVI as iPVI. An algorithm based on regular expressions classified all RDP as repeat PVI (Re-PVI) due to reconduction (PV reconduction), ablation of atrial tachycardia (AT) or SM, e. g. defragmentation of fractionated signals, or combinations. The results were manually quality-controlled. 798/934 (85%) patients required PV re-isolation due to PV reconduction, 298/934 (32%) required ablation for atrial tachycardia (AT) at least once during FU (Figure 1B). Comparing PVI-only iPVI patients with patients who received substrate modification during iPVI, significantly less patients with PVI-only iPVI had RDP for AT compared to those with SM during iPVI (27% vs. 50%, p Conclusion Redo AF ablations procedures are mainly required due to reconnected pulmonary veins or AT. Patients with PAF at iPVI are less likely to require more than one RDP which provides indirect support for early rhythm control in treatment of AF. SM at iPVI might be a predictor for occurrence of AT in the further course.

Funding Acknowledgements Type of funding sources: None. Background Device complications, such as infection or lead dysfunction necessitating transvenous lead extraction (TLE) are continuously rising amongst patients with indwelling transvenous implantable cardioverter-defibrillator (ICD). Objectives Aim of this study was to characterize the procedural outcome and risk factors of patients with indwelling 1- and 2-chamber ICD undergoing TLE. Methods We conducted a subgroup analysis of all 1- and 2-chamber ICD patients in the GALLERY (GermAn Laser Lead Extraction RegistrY) database. Predictors for procedural failure and all-cause mortality were assessed. Results A total of 854 patients with ICD undergoing TLE were identified, who were younger (62.9±13.8 vs. 70.7±13.0 years; p0.001), when compared to non-ICD patients. Leading extraction indication was lead dysfunction (48.0 vs. 21.9%; p Conclusions Transvenous lead extraction is safe and efficacious in patients with 1- and 2-chamber ICD. Although lead dysfunction is the leading indication for extraction, systemic device-related infection is the main driver of all-cause mortality for ICD patients undergoing TLE.

Funding Acknowledgements Type of funding sources: None. Background The implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy defibrillator (CRT-D) are well-established and essential therapeutic pillars for patients with heart failure and survivors of sudden cardiac death. The number of young patients receiving ICD or CRT-D has been increasing in the last decades. Understanding the key differences between the typically older ICD population and younger patients is paramount to optimized patient care. Methods The DEVICE registry prospectively enrolled patients undergoing ICD/CRT implantation or revision from 50 German centers between 2007–2014. Data on patient characteristics, procedural outcome, adverse events and mortality during the initial stay and follow-up was collected. All patients under the age of 45 years were identified and included into a comparative analysis with the remaining population. Results A total number of 4181 patients were enrolled into the registry, of which 236 patients (5.6%) were under the age of 45 years. Median age was 38.0 [31.0; 42.0] vs. 69.0 [60.0; 75.0] years, p Conclusion Rates for procedural complications and in-hospital mortality were very low and without differences between both age groups. However younger patients experienced a higher rate of postoperative complications requiring revision and had higher readmission rates for cardiac reasons, potentially due to a more active lifestyle.

Buildings’ indoor environmental quality (IEQ) affects people's comfort and well-being. However, even if comfort requirements for indoor environmental indicators are met, people are often not satisf...

BACKGROUND: Cardiac troponins (cTn) have been reported to be predictors for adverse outcomes in atrial fibrillation (AF), patients, but their actual use is still unclear.AIM: To assess the factors associated with cTn testing in routine practice and evaluate the association with outcomes.METHODS: Patients enrolled in the ESC-EHRA EORP-AF General Long-Term Registry were stratified into 3 groups according to cTn levels as (i) cTn not tested, (ii) cTn in range (≤99th percentile), (iii) cTn elevated (>99th percentile). The composite outcome of any thromboembolism /any acute coronary syndrome/cardiovascular (CV) death, defined as Major Adverse Cardiovascular Events (MACE) and all-cause death were the main endpoints.RESULTS: Among 10 445 AF patients (median age 71 years, 40.3% females) cTn were tested in 2834 (27.1%). cTn was elevated in 904/2834 (31.9%) and in-range in 1930/2834 (68.1%) patients. Female sex, in-hospital enrollment, first-detected AF, CV risk factors, history of coronary artery disease, and atypical AF symptoms were independently associated with cTn testing. Elevated cTn were independently associated with a higher risk for MACE (Model 1, hazard ratio [HR] 1.74, 95% confidence interval [CI] 1.40-2.16, Model 2, HR 1.62, 95% CI 1.28-2.05; Model 3 HR 1.76, 95% CI 1.37-2.26) and all-cause death (Model 1, HR 1.45, 95% CI 1.21-1.74; Model 2, HR 1.36, 95% CI 1.12-1.66; Model 3, HR 1.38, 95% CI 1.12-1.71).CONCLUSIONS: Elevated cTn levels were associated with an increased risk of all-cause mortality and adverse CV events. Clinical factors that might enhance the need to rule out CAD were associated with cTn testing.

Loss experience in children: a guideline for primary care Everyone gets confronted with severe loss experiences during life, such as bereavement of a significant other, loss of a loved one after a divorce or loss of one’s own capabilities due to illness. Health care providers need to be equipped with substantial knowledge about children’s experiences of grief and distress in order to support family members properly. Moreover, this can influence the next generation’s capabilities to cope with stressful life events. The current article describes the characteristics of loss experiences in children up to 11 years. Developmental phases, as well as the need to explain to children the 4 fundamental characteristics of death will be discussed (i.e. finality, irreversibility, universality and causality). While grief and distress in children can generally be managed by the immediate surrounding of the child, sometimes professional support is necessary, which is also discussed in this article. Finally, the authors present 4 key principles and concrete recommendations on how adults can respond to children who lost someone so that they can regain pleasure in life.

Hyperactive delirium in an 11-year-old boy with juvenile neuronal ceroid lipofuscinosis and a SARS-CoV-2 infection An 11-year-old boy with juvenile neuronal ceroid lipofuscinosis (JNCL) is admitted because of acute agitation and hallucinations. Upon admission, the patient takes lorazepam, which does not induce the expected rest. A PCR-test had a positive result for SARS-CoV-2. Juvenile neuronal ceroid lipofuscinosis (JNCL) is a rare neurodegenerative disease in children and adolescents. Hallucinations are a known symptom in the course of the disease. In the case discussed in this article, however, the pronounced hallucinations fit within a broader clinical picture of a hyperactive delirium. A delirium is by definition provoked by a physical cause. In the presented case, JNCL was an existing risk factor for a delirium, the SARS-CoV-2 infection and lorazepam were presumably the triggering factors. Recent literature shows that an asymptomatic or mildly symptomatic SARS-CoV-2 infection can also trigger a delirium. Treatment consists of treating the physical cause (if possible), supportive measures for the patient and context, as well as medication. The antipsychotics risperidone and haloperidol are recommended. Within the context of JNCL, cautious initiation of a second-generation antipsychotic, such as risperidone, along with great alertness to possible side effects, such as extrapyramidal symptoms and neuroleptic malignant syndrome, are advised. For the young patient in the discussed case risperidone was started, supplemented with olanzapine as rescue medication. The medication had a good effect and no side effects were observed.

Objective To describe ultrasonography as a diagnostic method of in vivo Descemet's membrane detachment (DMD) in horses. Animals studied: Seven horses (three Icelandic horses, two Dutch Warmblood horses, one Appaloosa, and one Welsh Pony), presenting with moderate‐to‐severe focal or diffuse corneal edema, in whom DMD was suspected on ultrasonographic examination and confirmed with histopathology, were studied. Procedure A retrospective analysis of case records of horses with suspected DMD was performed. Results Median age at presentation was 14 years (range 11‐24). Clinical signs in eyes with DMD were unilateral in all horses and included blepharospasm and epiphora (6/7), buphthalmos (5/7), moderate‐to‐severe focal or diffuse corneal edema (7/7), corneal epithelial bullae (4/7), corneal neovascularization (4/7), Haab's striae (2/7), corneal endothelial precipitates (1/7), fibrin in the anterior chamber (1/7), focal cataract (2/7), and pigment deposits on the anterior lens capsule (1/7). During transpalpebral ultrasonography, a distinct linear echogenic structure was noted in the anterior chamber, initially diverging from, and later running parallel to, the posterior lining of the cornea in all eyes studied. In all cases, the cornea was severely thickened and echogenic, consistent with edema, and DMD was suspected. In all horses, the clinical signs progressed and the affected eye was eventually enucleated. Histopathology revealed DMD (7/7), spindle cell proliferation (4/7), Descemet's membrane reformation (3/7), and inflammation of the anterior uvea (5/7). Overall incidence was 1.04%. Conclusions Ultrasonography is an adequate tool in diagnosing DMD in horses. Descemet's membrane detachment should be included in the differential diagnosis in horses with dense focal or diffuse corneal edema.

Anthropogenic noise and artificial night lighting have been shown to have substantial effects on animal behavior, physiology, and species interactions. Despite the large body of previous work, very few studies have studied the combined effects of light and noise pollution, especially experimentally in the field. Rodents are a highly diverse group that are predominantly nocturnal and occupy a wide range of habitats worldwide, frequently in close association with human development, placing them at a heightened risk from sensory disturbances. To test the singular and combined effects of various levels of anthropogenic light and noise exposure on pinyon mouse (Peromyscus truei) activity and body condition, we used standard trapping methods across a gradient of light and noise and the two combined and accounted for variation of moonlight, vegetation structure, and weather. We hypothesized that increased levels of artificial light would decrease trap success and lead to lower body condition due to an increase in perceived predation risk and that increased noise levels would increase trap success and body condition due to a reduction in predation risk and/or release from competition. Pinyon mouse trap success declined as light intensity increased, and the effect was comparable to that of moonlight, which is well known to influence rodent activity and perception of predation risk. Although noise pollution did not alter trap success of pinyon mice, individuals captured in noisier areas at the beginning of the season had lower body condition than those from quieter areas. Body condition was uninfluenced by noise and light later in the season. We also found no evidence of any additive or synergistic effects of the two stimuli. Our results provide evidence that alterations to the sensory environment from anthropogenic activity can affect wild rodents in several ways. As anthropogenic development increases to meet the demands of growing human populations, more ecosystems will be exposed to increased levels of sensory disturbance, making the understanding of how these changes affect wildlife critical to ongoing conservation efforts.

Artificial intelligence (AI) has recently become a very popular buzzword, as a consequence of disruptive technical advances and impressive experimental results, notably in the field of image analysis and processing. In medicine, specialties where images are central, like radiology, pathology or oncology, have seized the opportunity and considerable efforts in research and development have been deployed to transfer the potential of AI to clinical applications. With AI becoming a more mainstream tool for typical medical imaging analysis tasks, such as diagnosis, segmentation, or classification, the key for a safe and efficient use of clinical AI applications relies, in part, on informed practitioners. The aim of this review is to present the basic technological pillars of AI, together with the state-of-the-art machine learning methods and their application to medical imaging. In addition, we discuss the new trends and future research directions. This will help the reader to understand how AI methods are now becoming an ubiquitous tool in any medical image analysis workflow and pave the way for the clinical implementation of AI-based solutions. ispartof: PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS vol:83 pages:242-256 ispartof: location:Italy status: published

The present guidelines ( http://leitlinien.net ) focus exclusively on cardiogenic shock due to myocardial infarction (infarction-related cardiogenic shock, ICS). The cardiological/cardiac surgical and the intensive care medicine strategies dealt with in these guidelines are essential to the successful treatment and survival of patients with ICS; however, both European and American guidelines on myocardial infarction and heart failure and also position papers on cardiogenic shock focused mainly on cardiological aspects.Evidence on the diagnosis, monitoring and treatment of ICS was collected and recommendations compiled in a nominal group process by delegates of the German Cardiac Society (DGK), the German Society for Medical Intensive Care Medicine and Emergency Medicine (DGIIN), the German Society for Thoracic and Cardiovascular Surgery (DGTHG), the German Society for Anaesthesiology and Intensive Care Medicine (DGAI), the Austrian Society for Internal and General Intensive Care Medicine (ÖGIAIM), the Austrian Cardiology Society (ÖKG), the German Society for Prevention and Rehabilitation of Cardiovascular Diseases (DGPR) and the German Interdisciplinary Association for Intensive Care and Emergency Medicine (DIVI), under the auspices of the Working Group of the Association of Medical Scientific Societies in Germany (AWMF). If only poor evidence on ICS was available, general study results on intensive care patients were inspected and presented in order to enable analogue conclusions.A total of 95 recommendations, including 2 statements were compiled and based on these 7 algorithms with defined instructions on the course of treatment.HINTERGRUND: Diese Leitlinie ( http://leitlinien.net ) fokussiert ausschließlich auf den infarktbedingten kardiogenen Schock (IKS). Beide Strategien, sowohl die kardiologisch/herzchirurgische als auch die intensivmedizinische, sind zur erfolgreichen Behandlung und zum Überleben der Patienten mit IKS essenziell. Dennoch beschäftigen sich sowohl die europäischen als auch die amerikanischen Leitlinien zu Herzinfarkt und Herzinsuffizienz und auch die Positionspapiere zum kardiogenen Schock nahezu ausschließlich mit den kardiologischen Aspekten.In einem nominalen Gruppenprozess der Delegierten der Deutschen Gesellschaft für Kardiologie – Herz- und Kreislaufforschung (DGK), der Deutschen Gesellschaft für Internistische Intensiv- und Notfallmedizin (DGIIN), der Deutschen Gesellschaft für Thorax‑, Herz- und Gefäßchirurgie (DGTHG), der Deutschen Gesellschaft für Anästhesiologie und Intensivmedizin (DGAI), der Österreichischen Gesellschaft für Internistische und Allgemeine Intensivmedizin (ÖGIAIN), der Österreichischen Kardiologischen Gesellschaft (ÖKG), der Deutschen Gesellschaft für Prävention und Rehabilitation von Herz-Kreislauferkrankungen (DGPR) und der Deutschen Interdisziplinären Vereinigung für Intensivmedizin (DIVI) wurden unter Leitung der Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF) die Evidenzen zur Diagnose, zum Monitoring und zur Therapie des IKS systematisch gesammelt und – darauf aufbauend – Empfehlungen ausgearbeitet. Lag jeweils nur geringe Evidenz zum IKS vor, wurden auch Studienergebnisse generell zu Intensivpatienten gesichtet und dargestellt, um Analogieschlüsse zu erlauben.Es wurden 95 Empfehlungen – inklusive zweier Statements – erarbeitet und darauf basierend 7 Algorithmen mit konkreten Anweisungen zum Handlungsablauf.