Early Increased Physical Activity, Cardiac Rehabilitation, and Survival After Implantable Cardioverter-Defibrillator Implantation

Background: Increased physical activity (PA) through cardiac rehabilitation (CR) improves outcomes in patients with heart failure and coronary disease, but CR referral remains infrequent. Implantable cardioverter-defibrillators (ICDs) can provide daily PA measurements to patients that may motivate them to increase PA, but it remains unclear if increased ICD measured PA is associated with improved outcomes with and without CR. Methods: This is a retrospective observational study of 41 731 Medicare beneficiaries with ICD implantation between January 1, 2014 and December 31, 2016. We linked daily ICD PA measurements and Medicare claims data to determine if increased PA is associated with a reduction in the likelihood of death or heart failure hospitalization. To determine if CR participation altered the effect of PA on outcomes, we performed two additional analyses matching CR participants and nonparticipants using propensity scores. The first match included demographics, comorbidities, and baseline PA measurements. The second match also included the change in PA measured during CR or the same time frame after ICD implant among nonparticipants. Results: The mean age was 75 (SD, 10) years, 30 182 beneficiaries (72.3%) were male, and 1324 (3%) participated in CR. Increased ICD detected PA was associated with improved survival. CR participants had a mean PA change of +9.7 (SD, 57.8) min/d, whereas nonparticipants had a mean change of −1.0 (SD, 59.7) min/d ( P <0.001). After matching for demographics, comorbidities and baseline PA, CR participants had significantly lower 1- to 3-year mortality (hazard ratio, 0.76 [95% CI, 0.69–0.85], P =0.03). After additionally matching for the ICD measured change in PA during CR there were no differences in mortality with and without CR (hazard ratio, 1.00 [95% CI, 0.82–1.21], P =0.87). Every 10 minutes of increased daily PA was associated with a 1.1% reduction in all-cause mortality in both groups. Conclusions: Among Medicare beneficiaries with ICDs, small increases in PA were associated with significant reductions in all-cause mortality.

Download Full-text

Abstract 17212: 30-day All-cause Readmission is Associated With a Significantly Higher Subsequent All-cause Mortality and Costly Readmissions Among Older Medicare Beneficiaries Hospitalized for Heart Failure

Circulation ◽

10.1161/circ.132.suppl_3.17212 ◽

2015 ◽

Vol 132 (suppl_3) ◽

Author(s):

Cherinne Arundel ◽

Rahul Khosla ◽

Charles Faselis ◽

Charity J Morgan ◽

Sijian Zhang ◽

...

Keyword(s):

Heart Failure ◽

Length Of Stay ◽

Propensity Scores ◽

Matched Cohort ◽

Medicare Beneficiaries ◽

Post Discharge ◽

Patients With Heart Failure ◽

All Cause Mortality ◽

Cumulative Length

Background: Among ambulatory patients with heart failure (HF), hospital admission is associated with higher subsequent mortality. HF is the leading cause of 30-day all-cause readmission, reduction of which is a goal of the Affordable Care Act. We examined the association of 30-day all-cause readmission with subsequent all-cause mortality in a propensity-matched cohort of hospitalized HF patients. Methods: Of the 8049 Medicare beneficiaries hospitalized for HF and discharged alive from 106 U.S. hospitals (1998-2001), 7578 were alive 30-day post-discharge, of which 1519 had 30-day all-cause readmission. Using propensity scores for 30-day all-cause readmission, we assembled a matched cohort of 1516 pairs of patients with and without 30-day all-cause readmission, balanced on 34 baseline characteristics. Results: During 2-12 months of post-discharge follow-up, all-cause mortality occurred in 41% and 27% of matched patients with and without 30-day all-cause readmission, respectively (HR, 1.68; 95% CI, 1.48-1.90; p<0.001; Figure). During a mean post-index follow up of 3 (max 9) years, patients with 30-day all-cause readmissions (vs. without) had higher total of post-index readmissions (mean, 6.9 vs 5.1; p<0.001), longer cumulative length of stay (mean, 51 vs 43 days; p<0.001), and higher charges (mean, $129,175 vs. $114,787; p=0.012) and payments (mean, $38,972 vs. $34,025; p=0.001) from those readmissions. Conclusions: Among hospitalized patients with HF 30-day all-cause readmission is associated with higher subsequent mortality, number of readmissions and costs, and longer cumulative length of stay.

Download Full-text

Sex Differences in Physical Activity and Its Association With Cardiac Death and All-Cause Mortality in Patients With Implantable Cardioverter-Defibrillators

Frontiers in Cardiovascular Medicine ◽

10.3389/fcvm.2020.588622 ◽

2020 ◽

Vol 7 ◽

Author(s):

Xiaoyao Li ◽

Xiaodi Xue ◽

Xuerong Sun ◽

Shuang Zhao ◽

Keping Chen ◽

...

Keyword(s):

Physical Activity ◽

Cardiac Death ◽

Hazard Ratio ◽

Cardiac Resynchronization ◽

Implantable Cardioverter Defibrillators ◽

Device Implantation ◽

All Cause Mortality ◽

Males And Females ◽

The Impact ◽

Cardioverter Defibrillators

Objective: To clarify the impact of sex on physical activity (PA) levels among patients with implantable cardioverter-defibrillators/cardiac resynchronization therapy defibrillators (ICD/CRT-D) and its association with cardiac death and all-cause mortality.Methods: Overall, data of 820 patients with ICD/CRT-D from the SUMMIT registry were retrospectively analyzed. Baseline PA from 30 to 60 days after device implantation was measured using Biotronik accelerometer sensors. The primary and secondary endpoints were cardiac death and all-cause mortality, respectively.Results: Baseline PA levels were significantly higher in male patients than in female patients (11.40 ± 5.83% vs. 9.93 ± 5.49%, P = 0.001). Males had higher predictive PA cut-off values for cardiac death (11.16 vs. 7.15%) and all-cause mortality (11.33 vs. 7.17%). During the median follow-up time of 75.7 ± 29.1 months, patients with baseline PA<cut-off values had higher cumulative incidence of cardiac death and all-cause mortality in both males and females. At a PA level between the cut-off values of males and females, males had a higher risk of cardiac death (hazard ratio = 4.952; 95%CI = 1.055-23.245, P = 0.043) and all-cause mortality (hazard ratio = 2.432; 95%CI = 1.095-5.402, P = 0.029).Conclusions: Males had higher predictive PA cut-off values for cardiac death and all-cause mortality in patients with ICD/CRT-D. Sex should be considered as an important contributing factor when deciding for PA targets.

Download Full-text

P2627Diffuse coronary artery disease and effect of implantable cardioverter-defibrillators in patients with non-ischaemic systolic heart failure

European Heart Journal ◽

10.1093/eurheartj/ehz748.0950 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

C Byrne ◽

O Ahlehoff ◽

F Pedersen ◽

S Pehrson ◽

J C Nielsen ◽

...

Keyword(s):

Heart Failure ◽

Coronary Atherosclerosis ◽

Systolic Heart Failure ◽

Implantable Cardioverter Defibrillators ◽

Icd Implantation ◽

Hazard Ratios ◽

All Cause Mortality ◽

Artery Disease ◽

Cardioverter Defibrillators ◽

Danish Study

Abstract Background Implantable defibrillators reduce mortality in patients with ischaemic heart failure. The recent Danish Study to Assess the Efficacy of Implantable Cardioverter Defibrillators in Patients With Non-Ischaemic Systolic Heart Failure on Mortality (DANISH) found no overall effect on all-cause mortality with ICD implantation. Coronary artery disease (CAD) as the cause of heart failure had to be ruled out prior to inclusion into DANISH, but patients could have diffuse atherosclerosis, one- or two-vessel disease on the qualifying coronary angiogram if the investigator did not find that the degree of CAD could explain the severely reduced left ventricular ejection fraction. It is unknown if concomitant coronary atherosclerosis is related to outcome in patients with non-ischaemic cardiomyopathy and whether the effect of implanting an ICD is different in patients with non-ischaemic cardiomyopathy and coronary atherosclerosis. Purpose The aim of this study was to investigate the association between coronary atherosclerosis and all-cause mortality in patients with non-ischaemic systolic heart failure and the effect of ICD implantation in these patients. Methods Of the 1116 patients from the DANISH study, 838 patients with available coronary angiography data were included in this subgroup analysis. Patients were considered to have coronary atherosclerosis if the invasive cardiologist described diffuse atherosclerosis or coronary stenosis. We used cox regression to assess the relationship between coronary atherosclerosis and mortality and between ICD implantation and mortality in patients with and without coronary atherosclerosis. Data are presented as hazard ratios with 95% confidence intervals. Results Of the 838 patients, 266 (32%) had coronary atherosclerosis, 216 (81%) of whom were reported as having atherosclerosis without stenoses. Patients with coronary atherosclerosis were significantly older (median age 67 years vs 61 years), more often male (77% vs 70%) and had a higher prevalence of diabetes (30% vs 17%). In univariable analysis, coronary atherosclerosis was a significant predictor of all-cause mortality (HR, 1.41; 95% CI, 1.04–1.91; P=0.03). However, the association between coronary atherosclerosis and all-cause mortality disappeared when adjusting for age, gender and diabetes (HR 1.02, 0.75–1.41, P=0.88). Adjusted hazard ratios are shown in Figure 1. There was no association between ICD treatment and all-cause mortality in patients with or without coronary atherosclerosis (HR 0.94; 0.58–1.52; P=0.79 vs HR 0.82; 0.56–1.20; P=0.30), P for interaction=0.67. Figure 1 Conclusions In patients with non-ischaemic systolic heart failure, the concomitant presence of coronary atherosclerosis was associated with increased mortality. However, this association was not independent of other risk factors. ICD implantation was not associated with mortality risk in patients either with or without concomitant coronary atherosclerosis. Acknowledgement/Funding TrygFonden (Copenhagen, DK), Medtronic (US) and St. Jude Medical (US)

Download Full-text

Multidisciplinary Cardiac Rehabilitation and Long-Term Prognosis in Patients With Heart Failure

Circulation Heart Failure ◽

10.1161/circheartfailure.119.006798 ◽

2020 ◽

Vol 13 (10) ◽

Cited By ~ 1

Author(s):

Kentaro Kamiya ◽

Yukihito Sato ◽

Tetsuya Takahashi ◽

Miyuki Tsuchihashi-Makaya ◽

Norihiko Kotooka ◽

...

Keyword(s):

Heart Failure ◽

Ejection Fraction ◽

Cardiac Rehabilitation ◽

Preserved Ejection Fraction ◽

Composite Outcome ◽

Term Survival ◽

Patients With Heart Failure ◽

All Cause Mortality ◽

Related Quality

Background: Exercise-based cardiac rehabilitation (CR) improves health-related quality of life and exercise capacity in patients with heart failure (HF). However, CR efficacy in patients with HF who are elderly, frail, or have HF with preserved ejection fraction remains unclear. We examined whether participation in multidisciplinary outpatient CR is associated with long-term survival and rehospitalization in patients with HF, with subgroup analysis by age, sex, comorbidities, frailty, and HF with preserved ejection fraction. Methods: This multicenter retrospective cohort study was performed in patients hospitalized for acute HF at 15 hospitals in Japan, 2007 to 2016. The primary outcome (composite of all-cause mortality and HF rehospitalization after discharge) and secondary outcomes (all-cause mortality and HF rehospitalization) were analyzed in outpatient CR program participants versus nonparticipants. Results: Of the 3277 patients, 26% (862) participated in outpatient CR. After propensity matching for potential confounders, 1592 patients were included (n=796 pairs), of which 511 had composite outcomes (223 [14%] all-cause deaths and 392 [25%] HF rehospitalizations, median 2.4-year follow-up). Hazard ratios associated with CR participation were 0.77 (95% CI, 0.65–0.92) for composite outcome, 0.67 (95% CI, 0.51–0.87) for all-cause mortality, and 0.82 (95% CI, 0.67–0.99) for HF-related rehospitalization. CR participation was also associated with numerically lower rates of composite outcome in patients with HF with preserved ejection fraction or frail patients. Conclusions: Outpatient CR participation was associated with substantial prognostic benefit in a large HF cohort regardless of age, sex, comorbidities, frailty, and HF with preserved ejection fraction.

Download Full-text

“I Just Can't Do It Anymore”: Patterns of Physical Activity and Cardiac Rehabilitation Referral in African Americans with Heart Failure

Journal of Cardiac Failure ◽

10.1016/j.cardfail.2011.06.016 ◽

2011 ◽

Vol 17 (8) ◽

pp. S5

Author(s):

Margaret M. McCarthy ◽

Alexandra Howe ◽

Judith Schipper ◽

Jaime Gonzalez ◽

Stuart Katz ◽

...

Keyword(s):

Physical Activity ◽

Heart Failure ◽

African Americans ◽

Cardiac Rehabilitation

Download Full-text

Outcomes of Cardiac Resynchronization Therapy in Patients with Hypothyroidism and Heart Failure

10.21203/rs.3.rs-23073/v2 ◽

2020 ◽

Author(s):

MEI YANG ◽

Xuping Li ◽

John C. Morris III ◽

Jinjun Liang ◽

Abhishek J. Deshmukh ◽

...

Keyword(s):

Heart Failure ◽

Cardiac Resynchronization Therapy ◽

Implantable Cardioverter Defibrillator ◽

Hazard Ratio ◽

Cardiac Resynchronization ◽

Resynchronization Therapy ◽

Therapy Outcomes ◽

Implantable Cardioverter Defibrillator Therapy ◽

Cardioverter Defibrillator ◽

All Cause Mortality

Abstract Background Hypothyroidism is known to be associated with adverse clinical outcomes in heart failure. The association between hypothyroidism and cardiac resynchronization therapy outcomes in patients with severe heart failure is not clear. Methods The study included 1,316 patients who received cardiac resynchronization therapy between 2002 and 2015. Baseline demographics and cardiac resynchronization therapy outcomes, including left ventricular ejection fraction, New York Heart Association class, appropriate implantable cardioverter-defibrillator therapy, and all-cause mortality, were collected from the electronic health record. Results Of the study cohort, 350 patients (26.6%) were classified as the hypothyroidism group. The median duration of follow-up was 3.6 years (interquartile range, 1.7-6.2). Hypothyroidism was not associated with a higher risk of all-cause mortality in patients receiving CRT for heart failure. The risk of appropriate implantable cardioverter-defibrillator therapy significantly increased in association with increased baseline thyroid -stimulating hormone level in the entire cohort (hazard ratio, 1.23 per 5mIU/L increase; 95% CI, 1.01-1.5; P=0.04) as well as in the hypothyroid group (hazard ratio, 1.44 per 5mIU/L increase; 95% CI, 1.13-1.84; P=0.004). Conclusions CRT improves cardiac function in hypothyroid patients. The ventricular arrhythmic events requiring ICD therapies are associated with baseline TSH level, which might be considered as an important biomarker to stratify the risk of sudden death for patients with heart failure and hypothyroidism.

Download Full-text

Abstract 17143: Shorter Length of Stay is Associated With Significantly Lower 30-day All-cause Readmission and 30-day All-cause Mortality in Older Medicare Beneficiaries Hospitalized for Heart Failure

Circulation ◽

10.1161/circ.132.suppl_3.17143 ◽

2015 ◽

Vol 132 (suppl_3) ◽

Author(s):

Cherinne Arundel ◽

Ali Ahmed ◽

Rahul Khosla ◽

Charles Faselis ◽

Charity Morgan ◽

...

Keyword(s):

Heart Failure ◽

Length Of Stay ◽

Prospective Payment System ◽

Early Discharge ◽

Continuous Variable ◽

Hospital Length ◽

Hospital Length Of Stay ◽

Medicare Beneficiaries ◽

Post Discharge ◽

All Cause Mortality

Background: A shorter hospital length of stay, encouraged by Prospective Payment System Act, may result in suboptimal care and early discharge. Heart failure (HF) is the leading cause for 30-day all-cause readmission. However, it is unknown whether hospitalized HF patients with a shorter length of stay may have higher 30-day all-cause readmission, the reduction of which is a goal of the Affordable Care Act. Methods: The 8049 Medicare beneficiaries hospitalized for HF and discharged alive from 106 U.S. hospitals (1998-2001) had a median length of stay of 5 days (interquartile, 4-8 days), of which 4272 (53%) had length of stay ≤ 5 days. Using propensity scores for length of stay 1-5 days, we assembled a matched cohort of 2788 pairs of patients with length of stay 1-5 and ≥6 days, balanced on 32 baseline characteristics. Results: 30-day all-cause readmission occurred in 19% and 23% of matched patients with length of stay 1-5 and ≥6 days, respectively (HR, 0.79; 95% CI, 0.70-0.89; Figure, left panel). When the length of stay of the 8049 pre-match patients was used as a continuous variable and adjusted for the same 32 variables, each day longer hospital stay was associated with a 2% higher risk of 30-day all-cause readmission (HR, 1.02; 95% CI, 1.01-1.03; p<0.001). Among matched patients, HR for 30-day HF readmission associated with length of stay 1-5 days was 0.84 (95% CI, 0.69-1.01; p=0.063). 30-day all-cause mortality occurred in 4.6% and 6.2% of matched patients with length of stay 1-5 and ≥6 days, respectively (HR, 0.73; 95% CI, 0.58-0.91; Figure, right panel). These associations persisted throughout 12 months post-discharge. Conclusions: Among hospitalized patients with HF, length of stay 1-5 days (vs. longer) was associated with significantly lower 30-day all-cause readmissions and all-cause mortality that persisted throughout first year post-discharge.

Download Full-text

Abstract 16124: Implantable Cardioverter Defibrillators in Patients With Hereditary Transthyretin Cardiac Amyloidosis

Circulation ◽

10.1161/circ.142.suppl_3.16124 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

Sreeram Yalamanchili ◽

Matthew T Brown ◽

Evan A Blank ◽

Melissa A Lyle ◽

Kunal N Bhatt

Keyword(s):

Heart Failure ◽

Ventricular Tachycardia ◽

Cardiac Amyloidosis ◽

Clinical Decision Making ◽

Systolic Heart Failure ◽

Heart Association ◽

High Rate ◽

Implantable Cardioverter Defibrillators ◽

Antitachycardia Pacing ◽

Icd Implantation

Introduction: Implantable cardioverter defibrillator (ICD) implantation in patients with cardiac amyloidosis is controversial, with no clear guidelines for clinical decision-making.. The role of ICD implantation in hereditary Transthyretin Amyloid Cardiomyopathy (hATTR-CM) is unclear. We sought to establish the burden of ventricular arrhythmias and the outcomes of ICD implantation in a single center cohort of hATTR-CM patients. Methods: A total of 69 patients with a confirmed diagnosis of hATTR-CM from genetic testing, and technetium pyrophosphate (PYP) scanning, or endomyocardial biopsy underwent retrospective chart review for demographic, clinical, and arrhythmia data. Results: Seventy-four percent of the cohort was male, with a mean age at diagnosis of 68 (SD=18 years). Sixty-five patients (94.2%) patients were African-American; all of whom carried the Valine 122 Isoleucine mutation. Most had systolic heart failure (New York Heart Association Staging II [18, 26%] and III [40, 58.8%]); 37 (54%) patients had an LVEF ≤ 35%. Thirty-six (52.2%) patients had documented episodes of non-sustained ventricular tachycardia (NSVT), three (4.3%) with ventricular tachycardia (VT), and one (1.5%) with ventricular fibrillation (VF). A total of 15 (21.7%) patients had ICDs placed for prevention of sudden cardiac death in the setting of low LVEF (EF <35%). All recorded VT/VF episodes occurred in three patients with ICDs. Of these patients, one experienced two episodes of VT each successfully abated by antitachycardia pacing (ATP), another experienced a single episode of VT abated by ATP, while the final experienced VF with successful 36J shock as well as two episodes of VT each successfully treated with 36J shocks. No inappropriate ICD shocks were delivered, however, there were two instances of ATP for inappropriately detected atrial arrhythmias. Conclusions: In a cohort of patients with hATTR-CM, we observed a high incidence of NSVT, yet only 41% of patients with severe systolic heart failure had ICDs implanted. A high rate of successful defibrillation and no inappropriate ICD shocks were noted, suggesting that ICDs should be strongly considered, and may be underutilized, in patients with systolic heart failure and/or arrhythmias in the setting of hATTR-CM.

Download Full-text

P990Assessment of clinical risk factors for all-cause mortality among hypertrophic cardiomyopathy patients with ICDs

European Heart Journal ◽

10.1093/eurheartj/ehz747.0583 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

S Mielczarek ◽

P Syska ◽

M Lewandowski ◽

A Przybylski ◽

M Sterlinski ◽

...

Keyword(s):

Risk Factors ◽

Heart Failure ◽

Family History ◽

Secondary Prevention ◽

Positive Family History ◽

Left Ventricular ◽

Icd Implantation ◽

All Cause Mortality ◽

History Of ◽

End Stage

Abstract Introduction According to the literature, the annual mortality rate of hypertrophic cardiomyopathy (HCM) patients is estimated to 1–2%. Sudden cardiac death (SCD), heart failure and thromboembolism are the main causes of death among this population. Patients at high risk for SCD, identified using HCM risk score, are qualified for ICD implantation. Unfortunately for clinicians, there is no validated model or statistical tool for assessment of the risk of mortality within the HCM patients with ICDs. Purpose The aim of this study was to determine the main risk factors of all- cause mortality in HCM patients with ICDs. Methods The long-term follow-up of group of 104 consecutive patients with HCM, who had the ICD implanted between 1996 and 2006 in tertiary reference clinical unit was performed. Twenty patients who died during observation were the subject of the current analysis. ICD was implanted for primary (n=16) and secondary (n=4) prevention of SCD within this subpopulation. Analysis were performed for mentioned below potential risk factors: age at the time of implantation, syncopes, family history of SCD, atrial fibrillation/supraventricular tachycardia, decreased left ventricular ejection fraction (LVEF), non-sustained ventricular tachycardia (nsVT), maximum left ventricular wall thickness, abnormal exercise blood pressure response, left ventricular outflow tract obstruction. Results The average time of survival since ICD implantation was 8,5±4,6 years. Decreased LVEF (Wald chi2 4,57; p=0,033), secondary prevention (Wald chi2 8,57; p=0,003), family history of SCD (Wald chi2 4,93; p=0,026) and episodes of nsVT (Wald chi2 3,49; p=0,062) are the clinical risk factors that significantly affect the time of survival. The probability of death, expressed as Hazard Ratio, was 27-fold higher in secondary prevention group (HR=27,18), almost 10-fold higher in patients with positive family history of SCD (HR=9,74) and 3,7-fold higher when nsVT was detected. The cause of death was established in 16/20 patients. In 15 cases, these were deaths from cardiovascular causes: end-stage heart failure (8), complications of heart transplantation or circulatory support (4), SCD (1) and other cardiovascular (2). Conclusion Secondary prevention, positive family history of SCD, nsVT and decreased LVEF seem to be the most significant risk factors associated with all- cause mortality in HCM patients with ICDs. Despite the ICD implantation, subpopulation studied had poor prognosis with high incidence of progression to end-stage heart failure. Further studies to create validated model for assessment of death risk in long-term observation of patients with HCM after ICD implantation are required.

Download Full-text

Effect of Cardiac Rehabilitation Visits on Mortality among Elderly Medicare Beneficiaries with Heart Failure

Journal of Cardiac Failure ◽

10.1016/j.cardfail.2009.06.115 ◽

2009 ◽

Vol 15 (6) ◽

pp. S99

Author(s):

David J. Whellan ◽

Bradley G. Hammill ◽

Kevin A. Schulman ◽

Lesley H. Curtis

Keyword(s):

Heart Failure ◽

Cardiac Rehabilitation ◽

Medicare Beneficiaries

Download Full-text