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Dive into the research topics where Yevgeniy Khariton is active.

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Featured researches published by Yevgeniy Khariton.


JAMA Cardiology | 2017

Association of Serial Kansas City Cardiomyopathy Questionnaire Assessments With Death and Hospitalization in Patients With Heart Failure With Preserved and Reduced Ejection Fraction: A Secondary Analysis of 2 Randomized Clinical Trials

Yashashwi Pokharel; Yevgeniy Khariton; Yuanyuan Tang; Michael E. Nassif; Paul S. Chan; Suzanne V. Arnold; Philip G. Jones; John A. Spertus

Importance While there is increasing emphasis on incorporating patient-reported outcome measures in routine care for patients with heart failure (HF), how best to interpret longitudinally collected patient-reported outcome measures is unknown. Objective To examine the strength of association between prior, current, or a change in Kansas City Cardiomyopathy Questionnaire (KCCQ) scores with death and hospitalization in patients with HF with preserved (HFpEF) and reduced (HFrEF) ejection fractions. Design, Setting, and Participants Secondary analyses of the Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist (TOPCAT) trial of 1372 patients with HFpEF, conducted between August 2006 and January 2012, and the HF-ACTION trial that included 1669 patients with HFrEF, conducted between April 2003 and February 2007. Exposures Prior, current, and change in KCCQ Overall Summary scores (KCCQ-os) in 5-point increments (higher scores indicate better health status). Main Outcomes and Measures Time to cardiovascular death/first HF hospitalization (primary outcome) and all-cause death (secondary outcome). Results Of 1767 eligible TOPCAT participants, 882 were women (49.9%), and the mean (SD) age was 71.5 (9.7) years. Of 2130 eligible HF-ACTION participants, 599 were women (28.1%), and the mean age was 58.6 (12.7) years. Each 5-point difference in prior or current KCCQ-os scores was associated with a 6% (95% CI, 4%-8%; P < .001) to 9% (95% CI, 7%-11%; P < .001) lower risk for subsequent cardiovascular death/first HF hospitalization in patients with HFpEF and 6% (95% CI, 4%-9%; P < .001) to 8% (95% CI, 5%-10%; P < .001) lower risk for subsequent cardiovascular death/first HF hospitalization in patients with HRpEF and HFrEF in unadjusted analyses. Results were similar for change in KCCQ-os. In models with the prior and current KCCQ-os, only the current KCCQ-os was significantly associated with 10% (95% CI, 7%-12%; P < .001) and 7% (95% CI, 3%-11%; P < .001) lower risk for subsequent cardiovascular death/first HF hospitalization in patients with HFpEF and HFrEF, respectively. Similar results were observed when the current and &Dgr; KCCQ-os were considered together, when adjusted for important patient and treatment characteristics, when including 3 sequential KCCQ-os scores, and when examining all-cause death as the outcome. Conclusions and Relevance In serial health status evaluations of patients with HF, the most recent KCCQ score was most strongly associated with subsequent death and cardiovascular hospitalization in HFpEF and HFrEF. Measuring serial patient-reported outcome measures in the clinical care of patients with HF can provide an updated assessment of prognosis. Trial Registration clinicaltrials.gov Identifier: NCT00094302 (TOPCAT) and NCT00047437 (HF-ACTION)


Circulation | 2017

Association Between Prompt Defibrillation and Epinephrine Treatment With Long-Term Survival After In-Hospital Cardiac Arrest

Krishna K. Patel; John A. Spertus; Yevgeniy Khariton; Yuanyuan Tang; Lesley H. Curtis; Paul S. Chan; Anne V. Grossestreuer; Ari Moskowitz; Dana P. Edelson; Joseph P. Ornato; Mary Ann Peberdy; Matthew M. Churpek; Michael C. Kurz; Monique A. Starks; Patricia Kunz Howard; Saket Girotra; Sarah M. Perman; Zachary D. Goldberger

Background: Prior studies have reported higher in-hospital survival with prompt defibrillation and epinephrine treatment in patients with in-hospital cardiac arrest (IHCA). Whether this survival benefit persists after discharge is unknown. Methods: We linked data from a national IHCA registry with Medicare files and identified 36 961 patients ≥65 years of age with an IHCA at 517 hospitals between 2000 and 2011. Patients with IHCA caused by pulseless ventricular tachycardia or ventricular fibrillation were stratified by prompt (⩽2 minutes) versus delayed (>2 minutes) defibrillation, whereas patients with IHCA caused by asystole or pulseless electric activity were stratified by prompt (⩽5 minutes) versus delayed (>5 minutes) epinephrine treatment. The association between prompt treatment and long-term survival for each rhythm type was assessed with multivariable hierarchical modified Poisson regression models. Results: Of 8119 patients with an IHCA caused by ventricular tachycardia or ventricular fibrillation, the rate of 1-year survival was higher in those treated with prompt defibrillation than with delayed defibrillation (25.7% [1466 of 5714] versus 15.5% [373 of 2405]; adjusted relative risk [RR], 1.49; 95% confidence interval [CI] 1.32–1.69; P<0.0001). This survival advantage persisted at 3 years (19.1% versus 11.0%; adjusted RR, 1.45; 95% CI, 1.23–1.69; P<0.0001) and at 5 years (14.7% versus 7.9%; adjusted RR, 1.50; 95% CI, 1.22–1.83; P<0.0001). Of 28 842 patients with an IHCA caused by asystole/pulseless electric activity, the rate of 1-year survival with prompt epinephrine treatment was higher than with delayed treatment (5.4% [1341 of 24 885] versus 4.3% [168 of 3957]; adjusted RR, 1.20; 95% CI, 1.02–1.41; P=0.02), but this survival benefit was no longer present at 3 years (3.5% versus 2.9%; adjusted RR, 1.17; 95% CI, 0.95–1.45; P=0.15) and at 5 years (2.3% versus 1.9%; adjusted RR, 1.18; 95% CI, 0.88–1.58; P=0.27). Conclusions: Prompt defibrillation for IHCA caused by ventricular tachycardia or ventricular fibrillation was associated with higher rates of long-term survival throughout 5 years of follow-up, whereas prompt epinephrine treatment for asystole/pulseless electric activity was associated with greater survival at 1 year but not at 3 or 5 years. By quantifying the greater survival associated with timely defibrillation and epinephrine administration, these findings provide important insights into the durability of survival benefits for 2 process-of-care measures in current resuscitation guidelines.


Jacc-Heart Failure | 2018

Health Status Disparities by Sex, Race/Ethnicity, and Socioeconomic Status in Outpatients With Heart Failure

Yevgeniy Khariton; Michael E. Nassif; Laine Thomas; Gregg C. Fonarow; Xiaojuan Mi; Adam D. DeVore; Carol I. Duffy; Puza P. Sharma; Nancy M. Albert; J. Herbert Patterson; Javed Butler; Adrian F. Hernandez; Fredonia B. Williams; Kevin McCague; John A. Spertus

OBJECTIVES This study sought to describe the health status of outpatients with heart failure and reduced ejection fraction (HFrEF) by sex, race/ethnicity, and socioeconomic status (SES). BACKGROUND Although a primary goal in treating patients with HFrEF is to optimize health status, whether disparities by sex, race/ethnicity, and SES exist is unknown. METHODS In the CHAMP-HF (Change the Management of Patients with Heart Failure) registry, the associations among sex, race, and SES and health status, as measured by the Kansas City Cardiomyopathy Questionnaire-overall summary (KCCQ-os) score (range 0 to 100; higher scores indicate better health status) was compared among 3,494 patients from 140 U.S. clinics. SES was categorized by total household income. Hierarchical multivariate linear regression estimated differences in KCCQ-os score after adjusting for 31 patient characteristics and 10 medications. RESULTS Overall mean KCCQ-os scores were 64.2 ± 24.0 but lower for women (29% of sample; 60.3 ± 24.0 vs. 65.9 ± 24.0, respectively; p < 0.001), for blacks (60.5 ± 25.0 vs. 64.9 ± 23.0, respectively; p < 0.001), for Hispanics (59.1 ± 21.0 vs. 64.9 ± 23.0, respectively; p < 0.001), and for those with the lowest income (<


Circulation-cardiovascular Quality and Outcomes | 2018

Health Status Variation Across Practices in Outpatients With Heart Failure: Insights From the CHAMP-HF (Change the Management of Patients With Heart Failure) Registry

Yevgeniy Khariton; Adrian F. Hernandez; Gregg Fonarow; Puza P. Sharma; Carol I. Duffy; Laine Thomas; Xiaojuan Mi; Nancy Albert; Javed Butler; Kevin McCague; Michael E. Nassif; Fredonia B. Williams; Adam D. DeVore; J. Herbert Patterson; John A. Spertus

25,000; mean: 57.1 vs. 63.1 to 74.7 for other income categories; p < 0.001). Fully adjusted KCCQ-os scores were 2.2 points lower for women (95% confidence interval [CI]: −3.8 to −0.6; p = 0.007), no different for blacks (p = 0.74), 4.0 points lower for Hispanics (95% CI: −6.6 to −1.3; p = 0.003), and lowest in the poorest patients (4.7 points lower than those with the highest income (95% CI: 0.1 to 9.2; p = 0.045; p for trend = 0.003). CONCLUSIONS Among outpatients with HFrEF, women, blacks, Hispanics, and poorer patients had worse health status, which remained significant for women, Hispanics, and poorer patients in fully adjusted analyses. This suggests an opportunity to further optimize treatment to reduce these observed disparities.


Clinical Cardiology | 2018

Guideline-directed statin intensification in patients with new or worsening symptoms of peripheral artery disease

Yevgeniy Khariton; Krishna K. Patel; Paul S. Chan; Yashashwi Pokharel; Jingyan Wang; John A. Spertus; David M. Safley; William R. Hiatt; Kim G. Smolderen

Background: Although a key treatment goal for patients with heart failure with reduced ejection fraction is to optimize their health status (their symptoms, function, and quality of life), the variability across outpatient practices in achieving this goal is unknown. Methods and Results: In the CHAMP-HF (Change the Management of Patients With Heart Failure) registry, associations between baseline practice characteristics and Kansas City Cardiomyopathy Questionnaire (KCCQ) Overall Summary (OS) and Symptom Frequency (SF) scores were assessed in 3494 patients across 140 US practices using hierarchical regression after accounting for 23 patient and 11 treatment characteristics. We then calculated an adjusted median odds ratio to quantify the average difference in likelihood that a patient would have excellent (KCCQ-OS, ≥75) health status or minimal (monthly or fewer) symptoms (KCCQ-SF, ≥75) when treated at one practice versus another, at random. The mean (±SD) KCCQ-OS and KCCQ-SF were 64.2±24 and 68.9±25.6, with 40% (n=1380) and 50% (n=1760) having KCCQ scores ≥75, respectively. The adjusted median odds ratio across practices, for KCCQ-OS ≥75, was 1.70 (95% confidence interval, 1.54–1.99; P<0.001) indicating a median 70% higher odds of a patient having good-to-excellent health status when treated at one random practice versus another. In regard to KCCQ-SF, the adjusted median odds ratio for KCCQ-SF ≥75 was 1.54 (95% confidence interval, 1.41–1.76; P=0.001). Conclusions: In a large, contemporary registry of outpatients with chronic heart failure with reduced ejection fraction, we observed significant practice-level variability in patients’ health status. Quantifying patients’ health status as a measure of quality should be explored as a foundation for improving care. Clinical Trial Registration: URL: https://www.centerwatch.com. Unique identifier: TX144901.Background While a key treatment goal for patients with heart failure and reduced ejection fraction (HFrEF) is to optimize their health status (their symptoms, function, and quality of life), the variability across outpatient practices in achieving this goal is unknown.


Journal of the American College of Cardiology | 2017

CURRENT MORE IMPORTANT THAN PAST: INTERPRETING SERIAL HEART FAILURE SPECIFIC HEALTH STATUS IN HEART FAILURE PATIENTS WITH REDUCED EJECTION FRACTION

Yashashwi Pokharel; Yevgeniy Khariton; Michael E. Nassif; Yuanyuan Tang; Philip H. Jones; Suzanne V. Arnold; John A. Spertus

The ACC/AHA cholesterol guidelines recommend patients with peripheral artery disease (PAD) be treated with a moderate to high‐intensity statin. The extent to which patients with new or worsening PAD symptoms are offered guideline therapy is unknown.


Circulation-cardiovascular Quality and Outcomes | 2017

Impact of Telemonitoring on Health Status

Natalie Jayaram; Yevgeniy Khariton; Harlan M. Krumholz; Sarwat I. Chaudhry; Jennifer A. Mattera; Fengming Tang; Jeph Herrin; Beth Hodshon; John A. Spertus

Background: Heart failure-specific health status, as measured by the KCCQ, is prognostic of death or hospitalization in patients with HFrEF, both cross-sectionally and longitudinally. However, how best to interpret serial KCCQ data—which is occurring more frequently in clinical practice—is


Jacc-Heart Failure | 2018

Vaccination Trends in Patients With Heart Failure: Insights From Get With The Guidelines–Heart Failure

Ankeet S. Bhatt; Li Liang; Adam D. DeVore; Gregg C. Fonarow; Scott D. Solomon; Orly Vardeny; Clyde W. Yancy; Robert J. Mentz; Yevgeniy Khariton; Paul S. Chan; Roland Matsouaka; Barbara L. Lytle; Ileana L. Piña; Adrian F. Hernandez

Background— Although noninvasive telemonitoring in patients with heart failure does not reduce mortality or hospitalizations, less is known about its effect on health status. This study reports the results of a randomized clinical trial of telemonitoring on health status in patients with heart failure. Methods and Results— Among 1521 patients with recent heart failure hospitalization randomized in the Tele-HF trial (Telemonitoring to Improve Heart Failure Outcomes), 756 received telephonic monitoring and 765 usual care. Disease-specific health status was measured with the Kansas City Cardiomyopathy Questionnaire (KCCQ) within 2 weeks of discharge and at 3 and 6 months. Repeated measures linear regression models were used to assess differences in KCCQ scores between patients assigned to telemonitoring and usual care over 6 months. The baseline characteristics of the 2 treatment arms were similar (mean age, 61 years; 43% female and 39% black). Over the 6-month follow-up period, there was a statistically significant, but clinically small, difference between the 2 groups in their KCCQ overall summary and subscale scores. The average KCCQ overall summary score for those receiving telemonitoring was 2.5 points (95% confidence interval, 0.38–4.67; P=0.02) higher than usual care, driven primarily by improvements in symptoms (3.5 points; 95% confidence interval, 1.18–5.82; P=0.003) and social function (3.1 points; 95% confidence interval, 0.30–6.00; P=0.03). Conclusions— Telemonitoring results in statistically significant, but clinically small, improvements in health status when compared with usual care. Given that the KCCQ was a secondary outcome, the benefits should be confirmed in future studies. Clinical Trial Registration— URL: https://www.clinicaltrials.gov/. Unique identifier: NCT00303212.


Journal of the American College of Cardiology | 2017

IMPACT OF SERIAL HEART FAILURE HEALTH STATUS ON CLINICAL OUTCOMES IN HFPEF: A STATIC OR DYNAMIC PHENOMENON?

Yevgeniy Khariton; Yashashwi Pokharel; Michael E. Nassif; Yuanyuan Tang; Philip H. Jones; Suzanne V. Arnold; John A. Spertus


Journal of Cardiac Failure | 2018

Use of Target Doses of Guideline Directed Medical Therapy in Heart Failure by Systolic Blood Pressure: Insights from the CHAMP-HF Registry

Poghni Peri-Okonny; Yevgeniy Khariton; Krishna K. Patel; Adrian F. Hernandez; Gregg C. Fonarow; Puza P. Sharma; Laine Thomas; Xiaojuan Mi; Nancy M. Albert; Carol I. Duffy; Javed Butler; Kevin McCague; Fredonia B. Williams; Adam D. DeVore; J. Herbert Patterson; John A. Spertus

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John A. Spertus

University of Missouri–Kansas City

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Michael E. Nassif

Washington University in St. Louis

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Yuanyuan Tang

University of Missouri–Kansas City

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