Circulation, Volume 150, Issue Suppl_1, Page A4143109-A4143109, November 12, 2024. Background:The use of cardiac resynchronization therapy (CRT) devices has significantly increased in usage in recent years. Identifying predictors of mortality in CRT patients remains an area of investigation.Objective:To establish a relationship between timed up-and-go test time (TUGT) and mortality in heart failure patients (HF) with CRT devices.Methods:This retrospective study included 506 patients with heart failure with reduced ejection fraction (HFrEF) who underwent CRT implantation at our institution between 2017-2022. All patients were followed up with a multidisciplinary team, including electrophysiology and HF physicians about 6 months after CRT implantation, where frailty was assessed. We used TUGT as a measure of frailty and divided patients into 2 groups: TUGT: >15 seconds (n=73) and ≤15 seconds (n=433). The primary endpoint was a composite of left ventricular assist device implantation, transplant, or death at 2 years post-CRT. Data was collected retrospectively from electronic medical records.Results:The study population was 65.6% male, with a mean age of 69.1 years, and 79.4% of devices being CRT-D.Response was defined as an improvement in LVEF >5% with reduction in LVESV >10%; anybody not meeting this definition was classified as a non-responder. Responder and non-responder rates among TUGT >15 and TUGT15s have worse outcomes (Figure 1).Conclusion:Frailty testing using TUGT post-CRT implantation is a strong predictor of mortality in HFrEF patients after CRT implantation.
Risultati per: Diagnosi, trattamento e follow-up dei pazienti con vescica iperattiva
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Abstract 4136210: Meta-Analysis of Efficacy and Safety in DAPT De-escalation: Transitioning from Ticagrelor to Clopidogrel in Acute Myocardial Infarction Following Percutaneous Coronary Intervention at twelve-Month Follow-Up
Circulation, Volume 150, Issue Suppl_1, Page A4136210-A4136210, November 12, 2024. Background:In the management of acute myocardial infarction (AMI) following percutaneous coronary intervention (PCI), dual antiplatelet therapy (DAPT) plays a crucial role in preventing recurrent ischemic events. Recent studies have explored the feasibility and safety of de-escalating DAPT from ticagrelor to clopidogrel.Methods:We conducted a systematic review and meta-analysis by searching several databases, including Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, MEDLINE (including MEDLINE InProcess) (OvidSP), Web of Science, Embase (OvidSP), and Scopus. We assessed the risk of bias using the ROB2 Cochrane tools for randomized controlled trials (RCTs). The analysis was performed using RevMan Cochrane software.Results:A total of ten studies including observational and clinical studies involving N=18,001patients (11,458 de-escalated from ticagrelor to clopidogrel after 12 months and 6,543 remained on ticagrelor after 12 months post-PCI) were included. There was no difference in the risk of all-cause death (RR 0.98; 95% CI 0.69 to 1.38; p=0.90), cardiovascular death (RR 1.09; 95% CI 0.68 to 1.74; p=0.73), myocardial infarction (RR 0.90; 95% CI 0.71 to 1.14; p=0.37) and stroke (RR 0.81; 95% CI 0.50 to 1.32; p=0.41) between the two groups.Conclusion:In conclusion, transitioning from ticagrelor to clopidogrel in acute myocardial infarction following percutaneous coronary intervention appears to be a feasible strategy for de-escalating dual antiplatelet therapy (DAPT). While maintaining efficacy in preventing adverse cardiovascular events, such as stent thrombosis, this approach may mitigate bleeding risks associated with prolonged ticagrelor use.
Abstract 4140097: Effect of Disclosing a Polygenic Risk Score for Coronary Heart Disease on Adverse Cardiovascular Events: 10-year Follow-up of the MI-GENES Randomized Clinical Trial
Circulation, Volume 150, Issue Suppl_1, Page A4140097-A4140097, November 12, 2024. Introduction:The MI-GENES randomized clinical trial (NCT01936675) assessed the effect of disclosing a polygenic risk score (PRS) for coronary heart disease (CHD), in addition to a clinical risk based on Framingham risk score (FRS), on LDL-C levels. The trial enrolled participants from Olmsted County, Minnesota, without cardiovascular disease, at intermediate CHD risk (10-y risk: 5-20%), and not on statins. There was a significant LDL-C reduction in the integrated risk score group (IRSg; received PRS information in addition to the FRS) compared to the FRS group (FRSg; received their risk based on FRS), due to more frequent statin initiation.Research Question:Does disclosure of an IRS for CHD lead to a lower rate of major adverse cardiovascular events (MACE)?Methods:Participants were followed from randomization beginning in October 2013 until September 2023 to ascertain cardiovascular events, testing for CHD, and risk factor changes, by blinded review of electronic health records. The primary outcome was time from randomization to the first MACE— defined as cardiovascular death, nonfatal MI, coronary revascularization, and nonfatal stroke. Analyses were done using Cox and linear mixed-effects models.Results:We followed all 203 participants, who completed the MI-GENES trial, 100 in FRSgand 103 in IRSg(mean age at the end of follow-up 68.2±5.2 years, 48% male). During a median follow-up of 9.5 years, 9 MACE occurred in FRSgand 2 in IRSg(HR, 0.20; 95% CI, 0.04 to 0.94;P=0.042, Figure 1A). In FRSg, 47 (47%) underwent at least one test for CHD, compared to 30 (29%) in IRSg(HR, 0.51; 95% CI, 0.32 to 0.81;P=0.004, Figure 1B). IRSgparticipants had a longer duration of statin therapy during the first four years post-randomization (Figure 1C) and a greater reduction in LDL-C for up to 3 years post-randomization (Figure 1D). No significant differences between the two groups were observed for hemoglobin A1C, blood pressure, weight, and smoking cessation rate during follow-up.Conclusion:The disclosure of 10-year CHD risk that included a PRS to those at intermediate risk was associated with lower incidence of MACE after a decade, likely due to more frequent and prolonged statin use, leading to lower LDL-C levels.
Abstract 4135852: Safety and Post-operative Complications of Endovascular Versus Surgical Versus Follow-up and Medical Treatment for Patients with Vertebrobasilar Artery Stenosis: Propensity Score Weighting and a Machine Learning Driven Analysis
Circulation, Volume 150, Issue Suppl_1, Page A4135852-A4135852, November 12, 2024. Background:Vertebrobasilar artery stenosis (VBAS) can cause posterior circulation strokes (PCS). Optimal management is controversial, with options including medical therapy (MT), endovascular stenting (ES), and surgical revascularization (SR). This study compares outcomes of these treatments and evaluates the correlation between clinical features and medical history with 30-day outcome.Methods:Patients with VBAS were identified from the 2017-2018 National Inpatient Sample (NIS). Propensity scores adjusted for baseline differences. Outcomes included mortality, neurological complications (NC), discharge destination (DD), length of stay (LOS), total charges (TC), and procedural complications (PC). Predictive ability of clinical variables was assessed using logistic regression (LR) and machine learning techniques (MLT).Results:Of 1,343 patients, 1,061 (79.0%) received NI, 234 (17.4%) underwent ES, and 24 (1.8%) had SR. Mean age was 69.45 years, with 64.1% male. Demographics: 69.8% White, 14.9% Black, 10.0% Hispanic, and 5.3% other races. Hypertension (HTN, 85.4%) and diabetes (DM, 18.9%) were prevalent. After propensity weighting, ES was associated with higher odds of mortality, surgical/medical complications (SMC), and device/graft complications (DGC) compared to NI. SR showed a non-significant trend toward higher non-home discharges (NHD). ES and SR groups had higher resource utilization with longer LOS and greater TC. Clinical variables alone were weak predictors, with AUC values ranging from 0.454 to 0.71 across different outcomes and models.Conclusion:ES of VBAS was associated with higher mortality and complication rates compared to MT alone, with inconsistent benefits for NC. SR also carried elevated risks without clear advantages over MT. These results support that current clinical independent variables from the NIS are weak predictors. This highlights the limitation of the database in relying solely on clinical and medical history, and suggests that future use of radiological and anatomical features can improve predictions of outcomes and determination of subgroups that can benefit from certain treatment. More studies should be conducted, including post hoc analyses based on radiological and anatomical features, to better inform treatment decisions and determine subgroups that can benefit from intervention or surgery. These findings suggest a need for judicious patient selection and reinforce the role of optimal MT.
Abstract 4146242: Superiority of Ultrahigh-Resolution Photon-Counting Computed Tomography in Follow-up In-Stent Restenosis
Circulation, Volume 150, Issue Suppl_1, Page A4146242-A4146242, November 12, 2024. Background:In 2021, the Food and Drug Administration approved the first Photon Counting Computed Tomography (PCCT) system, marking an extraordinary milestone in medical imaging. This advanced technology offers significant advantages in cardiac imaging, particularly in detecting severe calcification lesions and in-stent restenosis (ISR). Subsequently, in October 2023, our hospital became the first to implement a PCCT system. Leveraging the benefits of PCCT, we conducted a study to investigate ISR in patients who had undergone stenting over the course of a year.Methods:From October 2023 to January 2024, all high-risk stented patients, including those with multiple stents, bifurcation lesions, chronic total occlusions, and severe calcification lesions, were included in the study. The PCCT system (tube voltage 120 kV, collimation 120 x 0.2 mm, 50-70 ml Iohexol 300 mg/ml) was utilized to detect ISR. Intra-stent lesions with more than 50% narrowing were classified as ISR. Additionally, the quality of the PCCT images was assessed by two radiology experts using a five-point scale, where 1 indicated excellent quality (absence of artifacts) and 5 indicated non-diagnostic quality (severe artifacts).Results:Eighty patients (77.5% male) met the inclusion criteria, with a mean age of 64.7 ± 10.9 years. Among these patients, 56 had stents in the Left Anterior Descending (LAD) artery, while 27 and 34 had stents in the Left Circumflex Artery (LCx) and Right Coronary Artery (RCA), respectively. In total, 25 patients (31.2%) were identified with ISR. Specifically, ISR was most prevalent in the LCx at 25.9% (7/27), followed by the LAD at 21.4% (12/56), and the RCA at 17.7% (6/34). Nine patients underwent repeat percutaneous coronary intervention (PCI). The overall image quality was rated as excellent, with a median score of 1.5 [IQR, 1-2]. Additionally, 40 patients (50%) had a calcium score over 400.Conclusion:These findings represent the first results obtained using PCCT at our hospital. The results indicated a relatively high rate of ISR, particularly among high-risk patients. Given the excellent image quality, PCCT is a promising technique for the follow-up of patients post-PCI.
Abstract Sa308: Augmentation of Intraventricular Stroke Volume during Head Up Position CPR: Implications for Clinical Outcomes
Circulation, Volume 150, Issue Suppl_1, Page ASa308-ASa308, November 12, 2024. Background:Active compression-decompression (ACD) cardiopulmonary resuscitation (CPR), an impedance threshold device (ITD) and controlled, gradual, automated head and thorax elevation, collectively termed automated Head Up Position (AHUP) CPR, increases cerebral perfusion pressure (CerPP), brain blood flow, coronary perfusion pressure (CorPP), end tidal CO2 (ETCO2) and cerebral oximetry (rSO2) in animal models when compared with conventional (C) CPR. AHUP-CPR in patients is associated with increased neurologically favorable survival versus C-CPR. This study tested the hypothesis that AHUP CPR will increase cardiac stroke volume (SV) and other hemodynamics compared with C-CPR in a porcine model of cardiac arrest.Methods:Farm pigs (n=15) were sedated, anesthetized, and ventilated. Hemodynamics, including intracardiac conductance catheter based biventricular (BiV) pressure-volume (PV) loops, were continuously measured and recorded. After 10 minutes of untreated ventricular fibrillation, C-CPR was performed for 2 minutes in the supine position using an automated CPR device designed for pigs at a rate of 100 compressions/minute, depth of 21% of the chest antero-postero diameter, a 50% duty cycle, and no active decompression. ACD+ITD was then performed with 3 cm of active decompression for 2 minutes, followed by AHUP-CPR, where the head and thorax were initially raised to 10 cm and 8 cm for a 2-minute priming phase, followed by elevation over the next 2 minutes to 24 cm and 9 cm. A linear mixed-effects model with a random intercept for individual pigs was used for statistical analysis.Results:CerPP, CorPP, ETCO2, and rSO2, as well as BiV SV and cardiac output, increased progressively and significantly with implementation of AHUP-CPR (p
Abstract Sa303: Active Decompression during Automated Head-up Cardiopulmonary Resuscitation
Circulation, Volume 150, Issue Suppl_1, Page ASa303-ASa303, November 12, 2024. Background:Active compression-decompression cardiopulmonary resuscitation (ACD-CPR) combined with an impedance threshold device (ITD) and controlled head-up positioning, collectively termed AHUP-CPR, is associated with improved outcomes compared with conventional CPR (C-CPR). Active decompression (AD) forcibly lifts the anterior chest wall with suction after each compression, while the ITD simultaneously impedes airflow into the lungs. AD and ITD synergistically lower intrathoracic pressure during decompression, improving venous return, ventricular refilling and cardiac output. Concurrently, head-up positioning lowers intracranial pressures and improves cardiac preload. This pig study focused on the physiological role of AD during AHUP-CPR, simulating real clinical scenarios.Methods:Ten male and female farm pigs (~40 kg) were anesthetized, intubated and ventilated. Hemodynamic parameters, end-tidal CO2 (ETCO2), and biventricular pressure-volume loops were recorded continuously. Ventricular fibrillation was induced and left untreated for 10 mins. Then, after 2 min of automated C-CPR in the flat position, AHUP-CPR with a 3 cm lift above the neutral position of the chest was performed for 13 min. AD was then abruptly discontinued, restarted 1 min later, and increased incrementally every min to up to 4 cm of active lift. Data were analyzed with a linear mixed-effects model, using random intercepts for individual pigs.Results:Upon cessation of AD, coronary and cerebral perfusion pressures, compression and decompression aortic pressures, compression right atrial pressure, ETCO2, right and left ventricular preload, compliance, stroke volume and cardiac output all decreased immediately and significantly (p3 cm of AD, was needed to maintain and optimize hemodynamics during AHUP-CPR in pigs. After pausing AD, incremental restoration of AD resulted in nearly complete restoration of peripheral and central hemodynamic measures. These observations support the benefit of and need for ≥3 cm of AD to optimize AHUP-CPR. Effective means to generate ≥3 cm of AD should be considered when implementing and developing AHUP-CPR devices to optimize outcomes.
Abstract 4137805: Loss to Follow-Up Among Adults with Congenital Heart Defects: A Report from Congenital Heart Disease Project to Understand Lifelong Survivor Experience (CHD PULSE)
Circulation, Volume 150, Issue Suppl_1, Page A4137805-A4137805, November 12, 2024. Background:Many of the 1.4 million adults with congenital heart disease (CHD) are lost to follow up (LTF). We aimed to identify factors associated with LTF and compare to those who remained in care.Methods:In the Congenital Heart Disease Project to Understand Lifelong Survivor Experience (CHD PULSE), we performed a cross-sectional survey in 2021-2023 of CHD survivors with a history of intervention at 11 centers in the Pediatric Cardiac Care Consortium, a large US-based registry of CHD procedures. Participants reported their cardiac history, general health, education, income, health insurance, healthcare utilization, and marital status. LTF was defined as having seen a cardiologist three or more years ago.Results:Among the 3109 respondents with CHD (median age 33) there were 1157 (37%) LTF and 1952 (63%) in care. Age, sex, marital status, and household income were not risk factors for LTF; but lack of health insurance, lower severity of CHD, and increasing time since last heart surgery were. Notably, respondents who reported being told in adolescence about the lifelong need for a cardiologist were almost three times as likely to report being in care (79% vs 28%, p
Abstract 4146563: Physician follow up and cardiac testing after a first diagnosis with secondary vs. primary atrial fibrillation in-hospital
Circulation, Volume 150, Issue Suppl_1, Page A4146563-A4146563, November 12, 2024. Background:Secondary atrial fibrillation (AF) is triggered by acute illness and associated with adverse outcomes. Timely follow-up is recommended by the American Heart Association statement on acute AF.Hypotheses:Patients with secondary AF receive less follow-up and cardiac testing than those primarily hospitalized for AF (primary AF).Follow-up is lower for secondary AF patients hospitalized for noncardiac diagnoses.Methods:Population-based cohort study using linked administrative datasets of patients aged ≥66 yrs discharged alive after a new diagnosis of AF while hospitalized in Ontario between Apr 2013 – Mar 2019. Patients were classified as secondary or primary AF using a validated approach based on discharge diagnosis type and followed for 1yr. Outcomes included physician visits (family physicians [FP], internists, cardiologists), and cardiac testing (electrocardiograms [ECG], echocardiograms, ambulatory ECG monitoring). The cumulative incidence function was used to quantify the incidence of outcomes. Cause-specific hazards regression was used to estimate hazard ratios (HR) associated with hospitalization type in secondary AF patients. Regression analyses accounted for competing risks.Results:We studied 13,011 secondary AF (35.2% cardiac surgery, 9.6% cardiac medical, 17% noncardiac surgery, 38.1% noncardiac medical) and 11,065 primary AF patients. Secondary AF was associated with lower age, male sex, less heart failure, and greater prevalence of other comorbidities. Less than 50% of secondary AF patients had visits to internists, cardiologists, echocardiograms or ambulatory ECG monitoring (see Figure). The incidence of all outcomes was significantly lower for secondary than primary AF. Among secondary AF patients, specialist follow-up and cardiac testing rates were lowest after noncardiac diagnoses (see Table).Conclusion:Patients with secondary AF have less specialist follow-up and cardiac testing than primary AF, especially if hospitalized for noncardiac diagnoses.
Abstract 4138374: Coronary Endothelial Dysfunction Plays Important Roles on Development of Acute Coronary Syndrome and Fatal Cardiovascular Events During Long-Term Follow-up Over 10 Years
Circulation, Volume 150, Issue Suppl_1, Page A4138374-A4138374, November 12, 2024. Introduction:Although coronary endothelial dysfunction is thought to affect coronary atherothrombogenic processes, there has been little practical evidence for the relationship between clinical evolution of fatal or non-fatal acute coronary syndrome and coronary endothelial dysfunction.Hypothesis:We assessed hypothesis that coronary endothelial dysfunction has clinical impacts on development of acute coronary syndrome and fatal cardiovascular events.Methods:Coronary endothelial dysfunction was practically graded by the flow-mediated endothelium-dependent reactive changes in coronary artery diameter (CFMD) to infusion of adenosine triphosphate (ATP ; 50μg) into the normal left coronary artery using quantitative coronary arteriography in 150 patients with stable coronary artery disease. The enrolled patients were categorized into tertile groups according to the values of CFMD, and we prospectively followed-up major adverse clinical cardiac events including acute coronary syndrome and cardiovascular death.Results:For a mean follow-up period of 132 months (range; 120 to 144) with complete follow-up, the patients in the lower third with severe coronary endothelial dysfunction (Group-L) more frequently developed acute coronary syndrome than those in the middle third with mild coronary endothelial dysfunction (Group-M) plus those in the higher third without coronary endothelial dysfunction (Group-H) [Group-L versus Group-M plus Group-H: 15(30%) versus 5(10%) plus 0(0%), p
Abstract 4144037: Association Between Imaging Follow Up and 1-Year Reintervention Risk After Peripheral Vascular Intervention for Claudicatio
Circulation, Volume 150, Issue Suppl_1, Page A4144037-A4144037, November 12, 2024. Background:One-third of patients undergoing peripheral vascular intervention (PVI) for refractory claudication undergo a reintervention within 1 year. It is unknown whether receiving follow up imaging after PVI for claudication is associated with 1-year reintervention risk.Aim:To assess the association between receiving imaging follow-up within 3 months after PVI for claudication and 1-year reintervention risk before occurrence of major amputation.Method:We studied patients with claudication undergoing PVI who were alive and without reintervention at 3 months (2015-2018) in the Vascular Quality registry. Reintervention and imaging data were defined from Medicare data. Imaging follow-up included ankle brachial index (ABI), duplex ultrasound (DU), computed tomography angiography (CTA), and magnetic resonance angiogram (MRA) within 3 months post-PVI. We propensity-matched 1:1 for imaging follow-up status (No vs. Yes). The Aalen-Johansen method and Fine-Gray model assessed the 1-year cumulative incidence and reintervention risk (sub-hazard ratio, sHR) in patients without vs. with imaging follow-up, accounting for the competing mortality risk. Sensitivity analysis excluded ABI from imaging follow-up.Results:Each imaging follow-up status included 2,208 patients. Mean age was 71.3±8.4 years and 39.0% female. In patients with imaging, 47.1% received 1 imaging test, of which 75.1% were ABIs. Over 50% received ≥2 imaging tests within 3 months post-PVI, with 5% receiving ≥1 per month. The 1-year cumulative incidence and reintervention risk was similar in patients without vs. with imaging (17.5% 95%CI 15.9-19.2 vs. 18.8% 95%CI 17.1-19.2 and sHR 0.92 95%CI 0.80-1.06,P=0.259). When excluding ABI, the 1-year cumulative incidence and reintervention risk was lower in those without vs. with imaging (18.3% 95%CI 16.6-20.2 vs. 21.1% 95%CI 19.2-23.0 and sHR 0.86 95%CI 0.74-0.99,P=0.039) (Figure).Conclusion:Although over half of patients received multiple imaging tests within 3 months post-PVI for claudication, extensive imaging beyond ABI follow-up, was not associated with reintervention risk, which remained high with 1-year rates around 20%. Future efforts should study optimal imaging strategies and cost-benefit ratios.
Abstract 4144360: Neurohormonal therapies at baseline and follow-up and survival in patients with wild-type transthyretin cardiac amyloidosis
Circulation, Volume 150, Issue Suppl_1, Page A4144360-A4144360, November 12, 2024. Background:Transthyretin cardiac amyloidosis (ATTR-CA) typically manifests with heart failure (HF). Discontinuing beta-blockers and avoiding angiotensin converting enzyme inhibitors/angiotensin receptor blockers (ACEi/ARB) in patients with ATTR-CA has been recommended.Methods:We investigated the prescription of neurohormonal therapies and their relationship with all-cause mortality in a multicenter cohort.Results:Patients (n=926) had a median age of 79 years (interquartile range 74-83), 90% were men, 17% had a left ventricular ejection fraction (LVEF) ≤40%, and 27% were in New York Heart Association (NYHA) class III/IV. At diagnosis, 60% of patients were on beta-blockers, 58% on ACEi/ARB/ARNI, and 35% on MRA. Patients on beta-blockers had more often NYHA class III/IV, a greater burden of comorbidities, and lower LVEF, and those on ACEi/ARB/ARNI had more comorbidities. Nonetheless, the survival of patients on beta-blockers or ACEi/ARB/ARNI was not significantly shorter over a 2.5-year follow-up (1.6-3.8) (p=0.577 and p=0.977, respectively), and patients on both drugs had not a worse outcome than those not receiving any neurohormonal drug (p=0.575). During the entire follow-up, the number of neurohormonal drugs remained unchanged in 54%, decreased in 27%, and increased in 19%. Patients with a number of neurohormonal drugs either unchanged or increased had a lower risk of mortality (odds ratio 0.71, 95% confidence interval 0.53-0.95, p=0.023).Conclusions:ATTRwt-CA patients on beta-blockers or ACEi/ARB/ARNI at diagnosis did not have a shorter survival. Beta-blockers were discontinued less often than ACEi/ARB/ARNI. There was no sign of better outcomes in patients discontinuing these therapies, or worse outcomes in those starting them.
Abstract 4120246: PFO Device Complications: Literature Review and Possible Implications for Echocardiographic Follow-up
Circulation, Volume 150, Issue Suppl_1, Page A4120246-A4120246, November 12, 2024. Introduction:Transthoracic (TTE) guidelines after PFO device closure are vague.Goal:To perform a literature search to characterize the type, frequency, and timing of complications that occur after PFO device placement to determine the utility of routine TTE in post-device patients.Methods:A search was performed in Medline (PubMed) with English language and publication date (2000-2023) filters applied. Studies were included if they reported on PFO device closures. If a study included both PFO and ASD device closures with no distinction between the groups, it was included. Studies were excluded if it only reported on ASD device closures, were meta-analysis/review papers, or did not report any outcomes for the PFO device procedure.Results:Total of 305 articles met criteria. Incidence of complications was 6.9% (3358/48348). Maximum range of follow-up was 0 – 17 years. Types and timing of complications presented in Tables 1 and 2. Majority of complications occurred 5 years post-device. All patients with complications > 5 years device placement presented with clinical symptoms related to their complications.Conclusion:Incidence of complications after PFO device placement appeared to significantly decrease 5 years post-procedure. Late complications were all preceded by clinical symptoms. Routine use of TTE < 5 years post-device may be reasonable, but > 5 years, TTE may only be needed if clinical symptoms occur.
Abstract 4134668: Title: Mandibular advancement device versus CPAP on cardiovascular health and quality of life in OSA a pre-specified 12 months follow up of outcomes
Circulation, Volume 150, Issue Suppl_1, Page A4134668-A4134668, November 12, 2024. Background:Obstructive sleep apnoea (OSA) is a significant cause of hypertension. ACC/AHA Guidelines recommended screening and treatment of OSA in patients with hypertension; however, evidence comparing mandibular advancement devices (MAD) to continuous positive airway pressure (CPAP) on cardiovascular health is lacking. We present the complete 12 months follow-up data on the comparative effectiveness of MAD versus CPAP in ambulatory BP reduction, QoL, cardiac arrhythmia, and myocardial remodelling.Method:In a randomized, non-inferiority trial (margin 1.5 mmHg), 321 participants, aged over 40, with hypertension and high cardiovascular risk were recruited. Of these, 220 participants with OSA (apnoea–hypopnea index ≥15 events/h) were randomized to either MAD or CPAP (1:1). Pre-specified secondary outcomes include: ambulatory BP, quality of life (QoL) (sleep-specific: ESS, SAQLI, FOSQ; non-sleep-specific: SF-36, EQ-5D), ambulatory ECG monitoring, and cardiac MRI.Results:A total of 89 (80.9% of 110) participants from MAD, and 91 (82.7% of 110) participants from CPAP completed 12 months follow-up. The median daily usage was 5.5 hours for MAD and 4.9 hours for CPAP. The between-group difference in 24h mean BP from baseline to 12 months was – 0.57 mmHg (95% confidence interval: (-2.53 to 1.39, non-inferiority P < 0.001). Compared with the CPAP group, MAD group demonstrated a larger reduction in all the 24h with the most pronounced differences observed in the asleep BP parameters (Table 1). Both the MAD and CPAP improved QoL (Table 2). CPAP had greater improvement in FOSQ from sleep-specific questionnaires (P=0.038), and social QoL in SF-36 from non-sleep-specificl questionnaires (P=0.013). The ambulatory ECG monitoring (MAD: 2.8 ± 1.0 days, CPAP: 2.3 ± 1.1 days) showed no between-group differences in % atrial fibrillation(P=0.209), % ventricular ectopic isolated count (P=0.790) and % supraventricular ectopic isolated count (P= 0.333). The cardiac MRI sub-study (101 participants : MAD= 45, CPAP= 56) showed CPAP had greater improvement in right ventricular stroke volume (P=0.023) and MAD had greater improvement in circumferential strain favours the MAD group (P=0.015) (Table 3).Conclusion:At 12 months , MAD was non-inferior to CPAP for reducing 24h mean arterial BP. MAD showed greater reduction in 24h BPs, especially during asleep. While both the MAD and CPAP are effective in improving QoL, CPAP is more effective in improving FOSQ and social QoL (SF-36).
Abstract 4143001: Rapid Diuresis Protocol in Decompensated Heart Failure: Improving Guideline-Directed Medical Therapy Titration and Timely Outpatient Follow-up
Circulation, Volume 150, Issue Suppl_1, Page A4143001-A4143001, November 12, 2024. Current guidelines for treating acute decompensated heart failure (ADHF) recommend inpatient intravenous diuresis until congestion relief, as well as the initiation and advancement of guideline-directed medical therapy (GDMT). Our institution has developed a rapid diuresis team (RDT) to expedite decongestion in hospitalized ADHF patients with the goal of safely reducing length of stay. This study examines the RDT’s potential impact on GDMT titration as well as outpatient follow up timing.Does the RDT protocol improve GDMT titration and time to outpatient follow-up after discharge in patients with ADHF?This retrospective single-center study includes patients undergoing inpatient treatment for ADHF from March 2022 to November 2023 at a tertiary referral center. Demographic, clinical, and laboratory data were obtained. Standard parametric and non-parametric analyses were conducted, along with Kaplan-Meier curve analysis, with statistical significance set at p
Abstract 4133654: External Validation of the Guha-Stabellini CVD Prostate Cancer-Specific Calculator in Short-Term Follow-Up
Circulation, Volume 150, Issue Suppl_1, Page A4133654-A4133654, November 12, 2024. Introduction:Conventional cardiovascular disease (CVD) risk scores are inaccurate for prostate cancer patients (PC); the Guha-Stabellini machine learning (GS-ML) score shows promise but lacks external validation.Hypothesis:The GS-ML score is superior to conventional CVD scores in patients with PC.Aim(s):To conduct external validation of the GS-ML score in patients diagnosed with PC.Methods:The validation used holdout data from Seidman Cancer Center’s CAISIS platform (internal validation cohort) and RADICAL PC1 (external validation cohort; a prospective study of men diagnosed with PC within 1 year or starting ADT within 1 month of enrollment), matching covariates with the GS-ML score. With limited follow-up, short-term CVD (2,000 days from PC diagnosis) was the outcome. Performance was assessed via area under the receiver operating characteristic curve (AUC) with assistance from Youden statistic cutoff, comparing metrics with ACC/AHA pooled cohort equations (PCE), SCORE-2, and AHA-PREVENT scores. Atherosclerotic cardiovascular disease (ASCVD) included non-fatal ischemic stroke and myocardial infarction. CVD included ASCVD and heart failure.Results:We included 2,495 patients from RADICAL PC1 and 1,506 from the internal validation cohort (Table 1). In the internal validation cohort, the CVD AUCs were 0.58, 0.49, 0.65, 0,73, and 0.75 for PCE, SCORE2, PREVENT simple, PREVENT enhanced, and GS-ML score, respectively. In RADICAL PC1, the AUCs for CVD were 0.60, 0.43, 0.67, and 0.64 for PCE, SCORE2, PREVENT simple and GS-ML score, respectively. For ASCVD, internal validation cohorts’ AUCs were 0.63, 0.62, 0.66, 0.73, and 0.67 for PCE, SCORE2, PREVENT simple, PREVENT enhanced, and Guha-Stabellini, respectively. The RADICAL PC1 ASCVD AUCs were 0.64, 0.46, 0.65, and 0.61, for PCE, SCORE2, PREVENT simple and GS-ML scores, respectively,Conclusion(s):The GS-ML score was validated for PC patients, showing superior performance to PCE and SCORE2, and similar performance to AHA-PREVENT in predicting CVD. The European Cardio-Oncology guidelines should reconsider using SCORE2 for PC patients. Further improvement and validation with nationally representative datasets are needed to corroborate these findings and enhance the generalizability of the GS-ML score.