Adrian Kielhorn
Amgen
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Publication
Featured researches published by Adrian Kielhorn.
Risk Management and Healthcare Policy | 2017
Meredith L. Kilgore; Harshali K. Patel; Adrian Kielhorn; Juan Maya; Pradeep Sharma
Objective The objective of this study was to assess the costs associated with the hospitalization and the cumulative 30-, 60-, and 90-day readmission rates in a cohort of Medicare beneficiaries with heart failure (HF). Methods This was a retrospective, observational study based on data from the national 5% sample of Medicare beneficiaries. Inpatient data were gathered for Medicare beneficiaries with at least one HF-related hospitalization between July 1, 2005, and December 31, 2011. The primary end point was the average per-patient cost of hospitalization for individuals with HF. Secondary end points included the cumulative rate of hospitalization, the average length of hospital stay, and the cumulative 30-, 60-, and 90-day readmission rates. Results Data from 63,678 patients with a mean age of 81.8 years were included in the analysis. All costs were inflated to
Pharmacotherapy | 2016
Adam P. Bress; Jordan B. King; Diana I. Brixner; Adrian Kielhorn; Harshali K. Patel; Juan Maya; Vinson C. Lee; Joseph Biskupiak; Mark A. Munger
2,015 based on the medical care component of the Consumer Price Index. The mean per-patient cost of an HF-related hospitalization was
American Journal of Cardiology | 2016
Adam D. DeVore; Phillip J. Schulte; Robert J. Mentz; N. Chantelle Hardy; Jacob P. Kelly; Eric J. Velazquez; Juan Maya; Adrian Kielhorn; Harshali K. Patel; Shelby D. Reed; Adrian F. Hernandez
14,631. The mean per-patient cost of a cardiovascular (CV)-related or all-cause hospitalization was
Current Medical Research and Opinion | 2015
Jennifer K. Rogers; Adrian Kielhorn; Jeffrey S. Borer; Ian Ford; Stuart J. Pocock
16,000 and
Journal of the American Heart Association | 2016
Anuraag R. Kansal; Martin R. Cowie; Adrian Kielhorn; Stanimira Krotneva; Ali Tafazzoli; Ying Zheng; Nicole Yurgin
15,924, respectively. The cumulative rate of all-cause hospitalization was 218.8 admissions per 100 person-years, and the median length of stay for HF-related, CV-related, and all-cause hospitalizations was 5 days. Also, 22.3% of patients were readmitted within 30 days, 33.3% were readmitted within 60 days, and 40.2% were readmitted within 90 days. Conclusion The costs associated with hospitalization for Medicare beneficiaries with HF are substantial and are compounded by a high rate of readmission.
Current Medical Research and Opinion | 2017
Anuraag R. Kansal; Stanimira Krotneva; Ali Tafazzoli; Harshali K. Patel; Jeffrey S. Borer; Michael Böhm; Michel Komajda; Juan Maya; Luigi Tavazzi; Ian Ford; Adrian Kielhorn
To assess clinical characteristics, pharmacotherapy treatment patterns, resource utilization and associated charges, and morbidity and mortality outcomes among a real‐world cohort of patients with heart failure with reduced ejection fraction (HFrEF) in an academic medical center setting.
Journal of Managed Care Pharmacy | 2016
Jeffrey S. Borer; Anuraag R. Kansal; Emily Dorman; Stanimira Krotneva; Ying Zheng; Harshali K. Patel; Luigi Tavazzi; Michel Komajda; Ian Ford; Michael Böhm; Adrian Kielhorn
There are limited data describing outcomes associated with an elevated heart rate in patients with heart failure with reduced ejection fraction (HFrEF) in routine clinical practice. We identified patients with HFrEF at Duke University Hospital undergoing echocardiograms and heart rate assessments without paced rhythms or atrial fibrillation. Outcomes (all-cause mortality or hospitalization and medical costs per day alive) were assessed using electronic medical records, hospital cost accounting data, and national death records. Patients were stratified by heart rate (<70 and ≥70 beats/min) and compared using generalized linear models specified with gamma error distributions and log links for costs and proportional hazard models for mortality/hospitalization. Of 722 eligible patients, 582 patients (81%) were treated with β blockers. The median heart rate was 81 beats/min (25th and 75th percentiles 69 to 96) and 527 patients (73%) had a heart rate ≥70 beats/min. After multivariate adjustment, a heart rate ≥70 beats/min was associated with increased 1-year all-cause mortality or hospitalization, hazard ratio 1.37 (95% CI 1.07 to 1.75) and increased medical costs per day alive, cost ratio 2.03 (95% CI 1.53 to 2.69). In conclusion, at a large tertiary care center, despite broad use of β blockers, a heart rate ≥70 beats/min was observed in 73% of patients with HFrEF and associated with worse 1-year outcomes and increased direct medical costs per day alive.
Journal of Cardiac Failure | 2016
John R. Teerlink; G. Michael Felker; John J.V. McMurray; Scott D. Solomon; Adrian Kielhorn; Fady Malik; Narimon Honarpour
Abstract Background: Ivabradine, a specific heart rate lowering agent, was shown in the SHIFT study to reduce time to first hospitalization for worsening heart failure (HF) in chronic systolic HF patients and also to reduce recurrent/total hospitalizations over the study interval. We assessed the effects of adding ivabradine in patients with systolic HF on the number needed to treat (NNT) to reduce recurrent hospitalizations. Methods: The SHIFT trial included 6505 patients with symptomatic HF (NYHA II–IV), left ventricular ejection fraction ≤35% and heart rate ≥70 bpm in sinus rhythm. Patients were randomized to either ivabradine or placebo in addition to guidelines-based drug therapy. The times to first hospitalization were analyzed using a univariate Cox proportional-hazards model; the associated NNT was calculated using Kaplan–Meier estimates of the time-to-event curves at 1 year in each treatment arm. Recurrent hospitalizations were analyzed using a negative binomial and the estimated annual event rates used to calculate the associated patient-time NNTs respectively. Results: The estimated NNT (number needed to initiate treatment with ivabradine to prevent one first HF hospitalization within 1 year) was 27 (estimated hazard ratio: 0.75, P < 0.0001). For recurrent HF hospitalizations, one event would be prevented on average per 14 patient-years for any year of follow-up over the course of SHIFT (estimated rate ratio: 0.71, P < 0.0001). A key limitation of this analysis is that it did not account for a relationship between recurrent HF hospitalizations and subsequent mortality. Conclusion: In chronic systolic HF the effect of ivabradine on reducing recurrent HF hospitalizations results in a lower NNT compared to the effect on the time for first hospitalization. The effect of ivabradine on recurrent hospitalizations, in addition to first events, may be a more appropriate measure when considering the impact of a treatment with ivabradine on healthcare resource utilization.
Circulation | 2016
Stanimira Krotneva; Anuraag R. Kansal; Ying Zheng; Harshali K. Patel; Adrian Kielhorn; Michael Böhm; Luigi Tavazzi; Ian Ford
Background Ivabradine is a heart rate–lowering agent approved to reduce the risk of hospitalization for worsening heart failure. This study assessed the cost‐effectiveness of adding ivabradine to background therapy in the United States from the perspective of a commercial or Medicare Advantage payer. Methods and Results A cost‐effectiveness, cohort‐based Markov model using a state transition approach tracked a cohort of heart failure patients with heart rate ≥70 beats per minute in sinus rhythm who were treated with ivabradine+background therapy or background therapy alone. Model inputs, including adjusted hazard ratios, rates of hospitalization and mortality, adverse events, and utility‐regression equations, were derived from a large US claims database and SHIFT (Systolic Heart failure treatment with the If inhibitor ivabradine Trial). In the commercial population, ivabradine+background therapy was associated with a cost savings of
Value in Health | 2015
Adrian Kielhorn; Juan Maya; R. Song; H.J. Henk; Harshali K. Patel
8594 versus the cost of background therapy alone over a 10‐year time horizon, primarily because of reduced hospitalization. Ivabradine was associated with an incremental benefit of 0.24 quality‐adjusted life years over a 10‐year time horizon. In the Medicare Advantage population, the incremental cost‐effectiveness ratio for ivabradine was estimated to be