Abstract Or109: Systemic Nicotinamide Mononucleotide Administration for Post-cardiac Arrest Brain Injury

Circulation, Volume 150, Issue Suppl_1, Page AOr109-AOr109, November 12, 2024. Background:Nicotinamide mononucleotide (NMN), a precursor of nicotinamide adenine dinucleotide (NAD+), has been shown to increase NAD+levels, reduce inflammation, and improve short-term survival in a rodent model of hemorrhagic shock. NAD+levels decrease after cardiac arrest (CA), but the effect of NMN on outcomes after CA remains undefined.Hypothesis:NMN administration increases NAD+content in the brain, reduces systemic inflammation, and improves outcomes after CA.Aims:This study aimed to investigate the effects of systemic NMN administration on neurological function, survival, and systemic inflammation after CA.Methods:In a murine model of CA, asystole was induced using potassium chloride. After 10 minutes of CA, mice were resuscitated with continuous epinephrine injections. Mice were randomly assigned to the NMN group (60 mg/kg body weight i.p.) or the control group (normal saline i.p.) 1.5 minutes after the return of spontaneous circulation (ROSC). The same treatment was repeated at 24 and 48 hours after CA. Neurological function score (on a scale from 0 to 12) at 48 hours post-CA and 7-day survival were compared between the NMN and control groups. Brain NAD+levels were measured 30 minutes post-ROSC. Plasma cytokine levels (IL-6 and TNF-α) were measured 2 hours post-ROSC.Results:Brain NAD+levels significantly increased 30 minutes post-ROSC in the NMN group compared to the control group (186 ± 15 pg/mg tissue and 131 ± 14 pg/mg tissue, respectively; P=0.02). NMN significantly improved neurological function score at 48 hours post-CA (NMN group median 12 [9–12] vs. control group 8 [4–11]; P=0.03). Moreover, NMN improved survival rate up to 7 days post-CA (NMN group 61.1% [11/18] vs. control group 22.2% [4/18]; P=0.03). Mean arterial pressure tended to be higher in the NMN group, although the difference was not significant (NMN group 113.8 ± 2.1 mmHg vs. control group 107.8 ± 2.9 mmHg; P=0.08). NMN showed a trend toward decreased IL-6 (NMN group 52.7 ± 14.3 pg/ml vs. control group 114.6 ± 33.3 pg/ml; P=0.15) and TNF-α (NMN group 6.9 ± 1.2 pg/ml vs. control group 11.7 ± 2.3 pg/ml; P=0.12).Conclusions:Systemic administration of NMN post-CA increased brain NAD+levels and improved neurological function and survival. NMN also showed a trend toward reduced systemic inflammation. NMN is a promising approach to improve outcomes after CA.

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Novembre 2024

Abstract 4144055: Adverse Physical Environment, Housing, and Economic Conditions: Their Impact on Maternal Cardiovascular Health during and Post-Pregnancy

Circulation, Volume 150, Issue Suppl_1, Page A4144055-A4144055, November 12, 2024. Background:Maternal cardiovascular health is a critical concern, particularly during and following pregnancy. Previous studies have highlighted the influence of social determinants on health outcomes, but the specific impact of adverse Physical Environment, Housing, and Economic Conditions on maternal cardiovascular health remains underexplored.Methods:Using the TriNetX global health research network within the US Collaborative Network, we explored how adverse Physical Environment, Housing, and Economic Conditions (ICD10CM: Z58 and ICD10CM: Z59) impact maternal cardiovascular health during pregnancy and within one year postpartum. Using, propensity score matching (PSM) analysis, our study compared two cohorts: women aged 15 to 60 who experienced issues related to Physical Environment, Housing, and Economic Conditions during or after pregnancy from 2008 to 2023, and women in the same age range who did not face such issues, thus representing a favorable physical environment, housing, and economic conditions.Results:Challenges related to the physical environment, housing, and economic conditions significantly increased the risk of all-cause mortality (OR: 3.237, 95% CI: 2.064 to 5.075, p

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Novembre 2024

Abstract 4144168: Five Years Post Heart Transplant Outcomes in Patients with Amyloidosis: A Single Center Experience

Circulation, Volume 150, Issue Suppl_1, Page A4144168-A4144168, November 12, 2024. Introduction:Many patients with amyloidosis can have advanced cardiac involvement, that drives mortality. Due to lack of definitive therapies that can reverse cardiac infiltration, cardiac replacement is the only hope for these patients. Durable left ventricular assist devices are not a good option; hence heart transplant remains mainstay. We present here long-term outcomes from a single center.Methods:Using EPIC Electronic Health Records’ database Clarity and UNOS center-specific report builder, we abstracted clinical information of patients who underwent a heart transplantation for cardiac amyloidosis at our center from 2004 to 2023.Results:Fifty-one patients underwent heart transplant for cardiac amyloidosis: 32 for Amyloid Light chain (AL) and 19 for Amyloidosis Transthyretin (TTR). Majority were males (Table 1). Of the AL transplants, 6 received concomitant kidney, 2 liver and 2 lung transplantation and of the TTR, 1 received concomitant kidney and 16 concomitant liver transplantation. There were more multi-organs in TTR compared to AL cardiac transplants (17 vs 10, p

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Novembre 2024

Abstract 4146071: Post Transcatheter Aortic Valve Replacement outcomes among patients with Cardiac Amyloidosis and Aortic Stenosis.

Circulation, Volume 150, Issue Suppl_1, Page A4146071-A4146071, November 12, 2024. Background:Aortic stenosis (AS) and cardiac amyloidosis (CA) frequently coexist. There is a paucity of data on whether the presence of CA impacts post-procedural and clinical outcomes after transcatheter aortic valve replacement (TAVR) among AS patients.Objective:In this analysis, we sought to leverage data from the TriNeTX Global Collaborative Network to determine the impact of CA on mortality and cardiovascular/ischemic outcomes at 1-month and 1-year post-TAVR.Methods:The TriNeTX Global Collaborative Network research database was used to identify patients aged ≥18 years from January 2012 to April 2023. Patients with AS were categorized into two groups: one with CA and having TAVR, and a control group with non CA group having TAVR. Patients were followed for 1 month and 1 year respectively. Propensity score-matched analysis (PSM) (1:1) was performed on age, gender, race, hypertension, diabetes mellitus, and chronic kidney disease. Primary outcome was all-cause mortality (ACM), while secondary outcomes were acute myocardial infarction (AMI), ischemic stroke, ventricular arrhythmias, and major adverse cardiovascular event (composite of ACM, ischemic stroke and AMI).Results:After 1:1 PSM, the study cohort comprised of 351 patients in the CA group and 351 patients in the non-CA group. The mean age of patients in CA and non-CA groups was 79.6 and 79.5 years. PSM analysis showed that ACM was comparable between CA and non-CA group after 1-month (RR, 1.00 (95%CI: 0.42-2.39),P=0.98), and after 1-year follow up (RR, 0.92 (95%CI: 0.59-1.44),P=0.736). AMI was also found comparable between the two cohorts, both after 1-month (RR, 1.189 (95%CI: 0.503-2.811),P=0.693), and after 1-year (RR, 1.288 (95%CI: 0.598-2.773),P=0.516). Similar trends were found for ischemic stroke, ventricular arrhythmias and MACE both after 1-month and 1-year follow up.Conclusion:This study shows that TAVR can be safe to be considered among cardiac amyloidosis patients with aortic stenosis

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Novembre 2024

Abstract 4139840: Impact of Sodium-Glucose Cotransporter 2 Inhibitors on Acute Kidney Injury Post Coronary Artery Bypass Grafting :A Retrospective Cohort Study and Meta-Analysis

Circulation, Volume 150, Issue Suppl_1, Page A4139840-A4139840, November 12, 2024. Background:sodium-glucose cotransporter 2 inhibitors (SGLT2i) , a new type of oral hypoglycemics agent used to treat type 2 diabetes, have a positive effect on the progression of heart failure, but there is a concern with the association between SGLT2i and acute kidney injury (AKI).Materials and Methods:We retrospectively evaluated consecutive patients undergoing CABG surgery from January 2018 to December 2021 in the hospital. A cohort of patients who had been prescribed SGLT2i was identified and matched by propensity score with a cohort of patients who had not been prescribed SGLT2i in a ratio of 1:3. The primary outcome was AKI following CABG. Furthermore, a meta-analysis was conducted on the relationship between SGLT2i and acute kidney injury (AKI). Four studies, comprising a total of 25,116 patients, were included in the analysis.Results:A total of 403 patients who had received SGLT2i and 1209 without SGLT2i were included in the analysis. AKI was observed in 54 patients (13.4%) in the SGLT2i group and 373 patients (30.9%) in the non-SGLT2i group following CABG. The SGLT2i exhibited a lower incidence of AKI compared with the non-SGLT2i (P < 0.001). The findings of the meta-analysis indicated that SGLT2i was associated with a decreased incidence of AKI (P < 0.001; OR= 0.525, [95% CI, (0.437-0.631]).Conclusion:The results of our prospective study indicated a reduced risk of AKI in patients undergoing CABG and were treated with SGLT2i.

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Novembre 2024

Abstract 4144823: Persistent Prothrombotic State in Post-Acute Sequelae of Mild SARS-CoV-2 Infection: Role of Extracellular Histones and Immune Complexes

Circulation, Volume 150, Issue Suppl_1, Page A4144823-A4144823, November 12, 2024. Post-Acute Sequelae of SARS-CoV-2 infection (PASC) have become a significant healthcare burden. Sustained increases in prothrombotic markers have been reported in hospitalized acute COVID-19 patients. However, whether patients with less severe acute infection also endure a persistent prothrombotic state remains uncertain. We tested for a prothrombotic state in this cohort and examined potential mediators. We enrolled 70 adult patients with prior mild acute SARS-CoV-2 infection and sustained PASC symptoms (per WHO criteria). A control healthy group matched for age and sex was also enrolled who were not previously diagnosed with COVID-19. Markers of platelet activation and platelet-neutrophil aggregates (PNA) were quantified using whole-blood flow cytometry. Markers of extracellular traps (citrullinated histones [H3Cit] and cell-free DNA [cfDNA]), anti-dsDNA IgG, and thrombin generation potential were measured in plasma. At recruitment (6 weeks to 3 years post infection), there was increased potential for thrombin generation in the plasma from PASC compared to control reflected by increased peak and velocity index (P

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Novembre 2024

Abstract 4146947: Obese adolescents supported with VADs have inferior post-transplant outcomes

Circulation, Volume 150, Issue Suppl_1, Page A4146947-A4146947, November 12, 2024. Background:The prevalence of both obesity and the use of left ventricular assist devices (LVAD) is increasing in pediatrics, but what impact obesity has on post-heart transplant (HT) outcomes when using an LVAD as a bridge to transplant (BTT) is unknown.Methods:Retrospective cohort study of patients 12-18 years old in the UNOS database with a durable LVAD and listed for heart transplant (HT) between 7/1/2004-12/31/2021. Demographic and clinical variables were assessed. Patients were classified as overweight (BMI≥85-

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Novembre 2024

Abstract Su1203: Temporal Trends in Post-Resuscitation Fever After In-Hospital Cardiac Arrest

Circulation, Volume 150, Issue Suppl_1, Page ASu1203-ASu1203, November 12, 2024. Background:A goal of post-resuscitation care among patients successfully resuscitated from in-hospital cardiac arrest (IHCA) is avoidance of fever. However, the incidence of post-resuscitation fever after the initial therapeutic hypothermia trials in 2002 and after the recent Targeted Temperature Management (TTM) trial in 2013 is unknown.Objective:Examine temporal trends in fever during the first 24 hours after return of spontaneous circulation (ROSC) from IHCA during 2005-2013 (after the initial hypothermia trials) and then during 2014-2022 (after the TTM trial).Methods:Within the Get With The Guidelines-Resuscitation registry for IHCA in the U.S., we identified adult patients with ROSC after an index IHCA from 127 hospitals that submitted data on IHCA during both time periods between 2005 and 2022. Patients with sepsis and COVID-19 infection were excluded. We evaluated temporal trends in post-resuscitation fever (defined as >100 °F) during 2005-2013 after the initial hypothermia trials, and then between 2014-2022 after the TTM trial.Results:Among 41,155 patients with ROSC after IHCA, the mean age was 64.8 years (±15.0); 60.0% were male, and 68.6% were of White race. Overall, 11,745 (28.5%) developed post-resuscitation fever (Figure 1). Following the therapeutic hypothermia trials in late 2002, the incidence of fever decreased from 39.1% in 2005 to 29.0% in 2013 (Pfor trend < 0.001) (Figure 2). After the publication of the TTM trial in late 2013, post-resuscitation fever in the years 2014-2022 did not go up but declined more modestly (Pfor trend = 0.003).Conclusions:Between 2005 and 2013, the incidence of post-resuscitation fever after IHCA decreased substantially. Since the publication of the TTM trial in late 2013, fever incidence has not increased; rather, it has remained relatively stable, even as reported use of therapeutic hypothermia has declined.

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Novembre 2024

Factors affecting the feasibility of post-authorisation RCTs for conditionally authorised anticancer medicines: a multistakeholder perspective from a qualitative focus group study

Objective
The collection of comprehensive data from post-authorisation trials for conditionally authorised anticancer medicines is frequently delayed. This raises questions about the feasibility of post-authorisation randomised controlled trials (RCTs) that aim to address remaining uncertainties. Therefore, this study explored factors that facilitate or impede the feasibility of post-authorisation RCTs from the perspective of stakeholders directly involved in the design, medical-ethical approval, and conduct of these RCTs.

Design
We conducted four qualitative focus groups (FGs).

Setting
FG discussions focused on the oncology setting in European context.

Participants
Twenty-eight European patients, physicians, medical ethicists and pharmaceutical industry representatives participated in the FGs.

Intervention
Respondents were informed about the topic and the purpose of the FGs before and at the start of FG discussions. An FG script was used to guide the discussion, which was informed by 14 semi-structured interviews with various stakeholders.

Results
We identified factors with the potential to impact feasibility related to trial design, trial conduct, factors external to a trial and post-authorisation interaction with regulators. Factors that may be particularly relevant for the post-authorisation setting include the choice of relevant endpoints and the inclusion of a fair comparator (trial design), strategies to increase patients’ and physicians’ willingness to participate (trial conduct), and external factors relating to a medicine’s commercial availability, the presence of competing medicines and trials and the perceptions about clinical equipoise. Post-authorisation interaction with regulators about how to obtain comprehensive data was deemed necessary in cases where a post-authorisation RCT seems infeasible.

Conclusions
Based on the identified factors, our findings suggest that patient recruitment and retention could be assessed more in-depth during regulatory feasibility assessments at the time of granting conditional marketing authorisation and that sponsors and regulators should better inform patients and physicians about the remaining uncertainties for conditionally authorised medicines and the necessity for post-authorisation RCTs. By enhancing the evaluation of trial feasibility, timely completion of post-authorisation RCTs may be facilitated to resolve the remaining uncertainties within a reasonable timeframe.

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Novembre 2024

Evaluation of occupational therapy in persons with COVID-19: a pre-post observational cohort study

Background
Persons with COVID-19 may experience limitations in daily functioning and can be referred to occupational therapy.

Objectives
To evaluate changes in daily functioning, cognitive complaints, fatigue and self-management of persons with COVID-19 who received occupational therapy in primary care.

To get insights in the volume and duration of occupational therapy.

Design
A pre-post observational cohort study from October 2020 until April 2021.

Setting
Fifty-eight occupational therapy practices in primary care throughout the Netherlands participated with 68 occupational therapists.

Participants
228 adults (≥18 years) with COVID-19, referred to occupational therapy, gave informed consent and participated in the pre-post evaluation. The mean age was 49 years (SD 13) and 79% of the patients was female. The most frequently reported complaints included fatigue and cognitive complaints.

Interventions
Occupational therapy using Dutch guidelines for occupational therapy in clients with COVID-19.

Outcome measures
Performance and satisfaction with performance using the Canadian Occupational Performance Measure (COPM); the impact of Cognitive Complaints on Participation (CoCo-P); and daily activities, self-management and perceived contribution of occupational therapy using the Patient Reported Outcome Measure for Occupational Therapy (PROM-OT).

Results
COPM-performance score improved with a mean difference of 2.9 points (95% CI 2.7 to 3.2), and COPM-satisfaction score improved with 3.2 points (95% CI 2.9 to 3.5). CoCo-P score improved with a mean difference of 20.9 points (95% CI from 14.4 to 27.4), and PROM-OT improved with 42.8 points (95% CI from 40.2 to 45.4). Participants received a median of seven sessions of occupational therapy (IQR 5–10) with a median duration of 18 weeks (IQR 12–25). They valued the contribution of occupational therapy to their improved functioning with a mean score of 8 (SD 1.4) and recommended this to others with a mean score of 9 (SD 1.2).

Conclusions
Persons with COVID-19 who received occupational therapy in primary care improved significantly in daily functioning and highly valued occupational therapy.

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Novembre 2024