Faculty Bibliography

BACKGROUND:Among older adults (age≥75) hospitalized for acute myocardial infarction, acute kidney injury after coronary angiography is common. Aging-related conditions may independently predict acute kidney injury, but have not yet been analyzed in large acute myocardial infarction cohorts. METHODS:We analyzed data from 2212 participants age≥75 in the SILVER-AMI study who underwent coronary angiography. Acute kidney injury was defined using KDIGO criteria (serum Cr increase ≥0.3mg/dL from baseline or≥1.5 times baseline). We analyzed the associations of traditional acute kidney injury risk factors and aging-related conditions (ADL impairment, prior falls, cachexia, low physical activity) with acute kidney injury, and then performed logistic regression to identify independent predictors. RESULTS:Participants' mean age was 81.3years, 45.2% were female, and 9.5% were nonwhite; 421 (19.0%) experienced acute kidney injury. Comorbid diseases and aging-related conditions were both more common among individuals experiencing acute kidney injury. However, after multivariable adjustment, no aging-related conditions were retained. There were 11 risk factors in the final model; the strongest were heart failure on presentation (OR 1.91, 95% CI 1.41-2.59), BMI >30 (vs. BMI 18-25: OR 1.75, 95% CI 1.27-2.42), and nonwhite race (OR 1.65, 95% CI 1.16-2.33). The final model achieved an AUC of 0.72 and was well calibrated (Hosmer-Lemeshow P=0.50). Acute kidney injury was independently associated with 6month mortality (OR 1.98, 95% CI 1.36-2.88) but not readmission (OR 1.26, 95% CI 0.98-1.61). CONCLUSIONS:Acute kidney injury is common among older adults with acute myocardial infarction undergoing coronary angiography. Predictors largely mirrored those in previous studies of younger individuals, which suggests that geriatric conditions mediate their influence through other risk factors.

Background: Among older adults with cardiovascular disease (CVD), cardiac rehabilitation (CR) has multiple benefits including improved quality of life and reduced mortality. Despite the known benefits of CR, early termination (ET) by patients (attending <12/36 recommended sessions) may attenuate these benefits. Our aim was to determine the incidence of ET in our older adult patient population, as well as risk factors associated with this outcome.
Method(s): We reviewed records from 792 consecutive older adult patients (>= 65 years old) enrolled in the NYU Langone Rusk CR program (2013-2017). Sessions attended, demographics, comor-bidities, and primary referral diagnosis were abstracted. We analyzed the overall rate of ET (defined as attending <12 sessions). Categorical variables were described with percentages and continuous variables with mean values. Multivariable logistic regression was subsequently used to analyze predictors of ET, considering age, race, ethnicity, sex, body mass index, diabetes, chronic lung disease, coronary artery disease, heart failure, and stroke.
Result(s): In our total study population, mean age was 74 +/- 7 years, mean BMI was 26 +/- 5, 38% were female, and 18% were nonwhite. Most patients (65%) were referred to CR due to ischemic heart disease (chronic stable angina, post-myocardial infarction, CABG, or elective PCI), with an additional 23% referred for valvular heart disease, 9% for systolic heart failure, and 3% for congenital heart disease. Early termination occurred in 129 patients (16.3%). Patients who terminated early were significantly older (75.6 vs. 73.9, p=0.005) and less likely to have coronary artery disease (13.6% vs. 19.5%, p=0.03). After multivariable logistic regression, the independent risk factors for ET were age (adjusted OR 1.04, 95% CI 1.01-1.07) and Hispanic ethnicity (adjusted OR 2.32, 95% CI 1.01-5.33).
Conclusion(s): Nearly 1 in 6 older adults terminated CR within 1 month (<12/36 sessions), potentially limiting the benefits of CR within this subgroup. Among factors we analyzed, age and Hispanic ethnicity were risk factors for ET, but the overall strength of associ-ation was weak. Further research is necessary to identify novel risk factors for ET in order to better target prevention efforts

BACKGROUND:Early readmissions among older adults hospitalized for acute myocardial infarction (AMI) are costly and difficult to predict. Aging-related functional impairments may inform risk prediction but are unavailable in most studies. Our objective was to, therefore, develop and validate an AMI readmission risk model for older patients who considered functional impairments and was suitable for use before hospital discharge. METHODS AND RESULTS/RESULTS:SILVER-AMI (Comprehensive Evaluation of Risk in Older Adults with AMI) is a prospective cohort study of 3006 patients of age ≥75 years hospitalized with AMI at 94 US hospitals. Participants underwent in-hospital assessment of functional impairments including cognition, vision, hearing, and mobility. Other variables plausibly associated with readmissions were also collected. The outcome was all-cause readmission at 30 days. We used backward selection and Bayesian model averaging to derive (N=2004) a risk model that was subsequently validated (N=1002). Mean age was 81.5 years, 44.4% were women, and 10.5% were nonwhite. Within 30 days, 547 participants (18.2%) were readmitted. Readmitted participants were older, had more comorbidities, and had a higher prevalence of functional impairments, including activities of daily living disability (17.0% versus 13.0%; P=0.013) and impaired functional mobility (72.5% versus 53.6%; P<0.001). The final risk model included 8 variables: functional mobility, ejection fraction, chronic obstructive pulmonary disease, arrhythmia, acute kidney injury, first diastolic blood pressure, P2Y12 inhibitor use, and general health status. Functional mobility was the only functional impairment variable retained but was the strongest predictor. The model was well calibrated (Hosmer-Lemeshow P value >0.05) with moderate discrimination (C statistics: 0.65 derivation cohort and 0.63 validation cohort). Functional mobility significantly improved performance of the risk model (net reclassification improvement index =20%; P<0.001). CONCLUSIONS:In our final risk model, functional mobility, previously not included in readmission risk models, was the strongest predictor of 30-day readmission among older adults after AMI. The modest discrimination indicates that much of the variability in readmission risk among this population remains unexplained by patient-level factors. CLINICAL TRIAL REGISTRATION/BACKGROUND:URL: https://www.clinicaltrials.gov. Unique identifier: NCT01755052.

BACKGROUND:The need for mentorship in aging research among postdoctoral trainees and junior faculty across medical disciplines and subspecialties is increasing, yet senior personnel with expertise in aging are lacking to fulfill the traditional dyadic mentorship role. Facilitated peer mentorship is grounded in collaborative work among peers with the guidance of a senior mentor. METHODS AND RESULTS/RESULTS:We evaluated the Columbia University Mentor Peer Aging Research (CoMPAdRE) program, an interprofessional facilitated peer mentorship program for early stage investigators, using the Reach Effectiveness Adoption Implementation and Maintenance framework (RE-AIM). Reach: A total of 15 participants, of which 20% were women, from five states and across six medical specialties participated. Effectiveness: Participants published 183 papers, of which more than 20% were collaborative papers between CoMPAdRE mentees or mentees-mentor. Participants reported developing skills in negotiation, navigating the academic role, organizing a seminar, management, and leadership over the course of the program. According to the qualitative findings, the most important components of the program included alignment around the aging, learning from national leaders, developing leadership skills and career networking. Adoption: Individual-level factors included selecting participants with a research track record, willingness to sign a compact of commitment and involvement in shaping the program. An institutional-level factor that facilitated program adoption included strong commitment from department leaders. IMPLEMENTATION/METHODS:The program cost $3,259 per participant. Maintenance: CoMPAdRE is being maintained and currently incorporating a second cohort of mentees. CONCLUSION/CONCLUSIONS:This RE-AIM evaluation provides lessons learned and strategies for future adoption, implementation, and maintenance of an aging-focused facilitated peer mentorship program.

Caring for older adults with multiple chronic conditions (MCCs) is challenging. The American Geriatrics Society (AGS) previously developed The AGS Guiding Principles for the Care of Older Adults with Multimorbidity using a systematic review of the literature and consensus (Table 1). The objective of the current work was to translate these principles into a framework of Actions and accompanying Action Steps for decision-making for clinicians who provide both primary and specialty care to older people with MCCs. A workgroup of geriatricians, cardiologists, and generalists: 1) articulated the core MCC Actions and the Action Steps needed to carry out the Actions; 2) provided decisional tips and communication scripts for implementing the Actions and Action Steps, using commonly encountered situations: 3) performed a scoping review to identify evidence-based, validated tools for carrying out the MCC Actions and Action Steps; and 4) identified potential barriers to, and mitigating factors for, implementing the MCC Actions. The recommended MCC Actions include: 1) Identify and communicate patients' health priorities and health trajectory; 2) Stop, start, or continue care based on health priorities, potential benefit versus harm and burden, and health trajectory; and 3) align decisions and care among patients, caregivers, and other clinicians with patients' health priorities and health trajectory. The tips and scripts for carrying out these Actions are included in the full MCC Action Framework available in the supplement (www.GeriatricsCareOnline.org).

Real-world outcomes in patients with chronic stable angina treated with ranolazine and other antianginal medications as second- or third-line therapy are limited. In a historical cohort study of veterans with chronic stable angina, we compared time with coronary revascularization procedures, hospitalizations, and 1-year healthcare costs between new-users of ranolazine versus conventional antianginals (i.e., calcium channel blockers, β blockers, or long-acting nitrates) as second- or third-line. Weighted regression models calculated adjusted hazard ratios (HR) at up to 8-year follow-up, and adjusted incremental costs in the first year. Weighted groups comprised 4,699 ranolazine users and 31,815 conventional antianginal users. Percutaneous coronary intervention (PCI) occurred more often in ranolazine users compared with conventional antianginal users (HR 1.16; 95% confidence intervals [CI] 1.08 to 1.25, p <0.001), and coronary artery bypass grafting occurred less often (HR 0.82; 95% CI 0.68 to 1.00, p <0.046). All-cause and atrial fibrillation (AF) hospitalizations were less common with ranolazine users compared with conventional users (all-cause: HR 0.94; 95% CI 0.90 to 0.99, p <0.010; AF:HR 0.74; 95% CI 0.67 to 0.82, p <0.001), and acute coronary syndrome was more common (HR 1.13; 95% CI 1.00 to 1.27, p <0.042). Adjusted 1-year costs were $24,517 in ranolazine users and $24,798 in conventional users (difference, $-280; 95% CI $-1,742 to $1,181, p = 0.71). In conclusion, ranolazine users had lower rates of coronary artery bypass grafting and all-cause and AF hospitalizations, but higher rates of percutaneous coronary intervention and hospitalizations due to acute coronary syndrome compared with conventional antianginal users. Healthcare costs were similar between ranolazine and conventional antianginal users.

OBJECTIVES/OBJECTIVE:The aim of this study was to determine whether frailty is associated with increased bleeding risk in the setting of acute myocardial infarction (AMI). BACKGROUND:Frailty is a common syndrome in older adults. METHODS:Frailty was examined among AMI patients ≥65 years of age treated at 775 U.S. hospitals participating in the ACTION (Acute Coronary Treatment and Intervention Outcomes Network) Registry from January 2015 to December 2016. Frailty was classified on the basis of impairments in 3 domains: walking (unassisted, assisted, wheelchair/nonambulatory), cognition (normal, mildly impaired, moderately/severely impaired), and activities of daily living. Impairment in each domain was scored as 0, 1, or 2, and a summary variable consisting of 3 categories was then created: 0 (fit/well), 1 to 2 (vulnerable/mild frailty), and 3 to 6 (moderate-to-severe frailty). Multivariable logistic regression was used to examine the independent association between frailty and bleeding. RESULTS:Among 129,330 AMI patients, 16.4% had any frailty. Frail patients were older, more often female, and were less likely to undergo cardiac catheterization. Major bleeding increased across categories of frailty (fit/well 6.5%; vulnerable/mild frailty 9.4%; moderate-to-severe frailty 9.9%; p < 0.001). Among patients who underwent catheterization, both frailty categories were independently associated with bleeding risk compared with the non-frail group (vulnerable/mild frailty adjusted odds ratio [OR]: 1.33, 95% confidence interval [CI]: 1.23 to 1.44; moderate-to-severe frailty adjusted OR: 1.40, 95% CI: 1.24 to 1.58). Among patients managed conservatively, there was no association of frailty with bleeding (vulnerable/mild frailty adjusted OR: 1.01, 95% CI: 0.86 to 1.19; moderate-to-severe frailty adjusted OR: 0.96, 95% CI: 0.81 to 1.14). CONCLUSIONS:Frail patients had lower use of cardiac catheterization and higher risk of major bleeding (when catheterization was performed) than nonfrail patients, making attention to clinical strategies to avoid bleeding imperative in this population.

BACKGROUND:Studies have demonstrated the value of transthoracic echocardiogram (TTE) diastolic parameters in predicting left atrial appendage (LAA) thrombus; however, these studies have been small. We aim to clarify the relationship between TTE diastolic parameters, in particular average e', and LAA thrombus or sludge. METHODS:A case-control review was conducted of subjects with non-valvular atrial fibrillation (n = 2263) who had undergone TEE (transesophageal echocardiogram) and had a TTE within 1 year of TEE. Cases of LAA sludge or thrombus were matched to controls by age, sex, left ventricular ejection fraction (LVEF), and anticoagulation status. RESULTS:Forty-three subjects (mean age 73 ± 12, 65% male, LVEF 47%, 44% on anticoagulation) with LAA sludge or thrombus were identified. Compared to matched controls, average TTE e' (7.3 ± 2.1 cm/s vs 8.7 ± 2.1 cm/s, P < 0.001) and the E:e' ratio (15 ± 7 cm/s vs 12 ± 5 cm/s; P = 0.005) were significant predictors of LAA sludge or thrombus. Average TTE e' value of >11 cm/s had 100% sensitivity for ruling out LAA sludge or thrombus. CONCLUSION/CONCLUSIONS:In individuals with atrial fibrillation, average e' >11 cm/s on TTE is a promising independent predictor of the absence of LAA sludge or thrombus on TEE.

Background/Introduction: The 2016 ESC Guideline on the Diagnosis and Treatment of Acute and Chronic Heart Failure endorsed sacubitril/valsartan (S/V) as class I-B treatment for heart failure with reduced ejection fraction(HFrEF) based on the PARADIGM-HF trial. Data on characteristics of S/V initiators and S/V adherence among renin-angiotensin aldosterone system inhibitor (RAASi)-nai ve patients treated in the community are limited. Purpose: Determine associated baseline patient and healthcare facility characteristics and medication adherence of S/V vs angiotensin converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB) in RAASi-naive HFrEF patients. Methods: Retrospective cohort study of U.S. Veterans Affairs (VA) data including HFrEF ( = 1 record of left ventricular ejection fraction (LVEF) = 40%) patients with = 1 in/outpatient visit for HF within 1-year pre-index (baseline period) treated with S/V, ACEI, or ARB from July 2015-June 2017. The index date was first S/V pharmacy fill and if none, first ACEI or ARB fill. RAASi-naive defined as no S/V, ACEI, or ARB fills during the baseline period. Poisson regression models with robust errors were used to compare baseline characteristics and 4-month medication adherence (i.e. follow-up fills, proportion of days covered [PDC], and discontinuation) for S/V vs ACEI or ARB. Medication adherence comparisons were adjusted for baseline characteristics using matching weights. Results: Among RAASi-naive HFrEF Veterans (N = 10,743),most (97.5%)weremale and 371 (3.5%) had an S/V pharmacy fill and 10,372 (96.5%) had an ACEI or ARB fill on the index date. Mean (standard deviation) baseline age, estimated glomerular filtration rate, and LVEF in S/V vs ACEI or ARB initiators were 73.6 (10.7) vs 70.3 (11.4) years, 61.3 (19.1) vs 66.4 (25.2) mL/min/1.73 m2, and 27.9% (8.3%) vs 34.4% (12.0%), respectively. History of ischemic cardiomyopathy was associated with S/V vs ACEI or ARB initiation. Veterans with lower systolic blood pressure, history of stroke, hypertension, myocardial infarction, or a visit with a Cardiologist on the index date were less likely to initiate S/V. In Veterans with a 30 day-supply index fill (N = 251 S/V and N = 3,101 ACEI or ARB) the adjusted risk ratio for 4-month PDC >80% was 0.78, 95% (confidence interval: 0.66-0.93) for S/V vs ACEI or ARB. Follow-up fills and discontinuation were similar for S/V vs ACEI or ARB. Adherence was similar for S/V vs ACEI or ARB among Veterans with a 90 day-supply. Conclusions: In a large, integrated healthcare system, 3.5% RAASi-naive HFrEF patients initiated S/V during the first 2-years post U.S. FDA approval. Overall, our findings suggest that S/V adherence is similar to ACEI or ARB in community-treated RAASi-naive HFrEF patients. The low numbers of S/V initiation may reflect a lag in formulary availability; S/V was added to the VA Formulary in October 2016. The reasons for lack of guideline-directed S/V initiation needs further elucidation