Witness to progress

Cardiac stereotactic ablative radiotherapy for control of refractory ventricular tachycardia: initial UK multicentre experience

Background

Options for patients with ventricular tachycardia (VT) refractory to antiarrhythmic drugs and/or catheter ablation remain limited. Stereotactic radiotherapy has been described as a novel treatment option.

Methods

Seven patients with recurrent refractory VT, deemed high risk for either first time or redo invasive catheter ablation, were treated across three UK centres with non-invasive cardiac stereotactic ablative radiotherapy (SABR). Prior catheter ablation data and non-invasive mapping were combined with cross-sectional imaging to generate radiotherapy plans with aim to deliver a single 25 Gy treatment. Shared planning and treatment guidelines and prospective peer review were used.

Results

Acute suppression of VT was seen in all seven patients. For five patients with at least 6 months follow-up, overall reduction in VT burden was 85%. No high-grade radiotherapy treatment-related side effects were documented. Three deaths (two early, one late) occurred due to heart failure.

Conclusions

Cardiac SABR showed reasonable VT suppression in a high-risk population where conventional treatment had failed.

Incidence and Clinical Significance of 30-Day and 90-Day Rehospitalization for Heart Failure Among Patients With Acute Decompensated Heart Failure in Japan - From the NARA-HF Study

BACKGROUND

Countermeasure development for early rehospitalization for heart failure (re-HHF) is an urgent and important issue in Western countries and Japan.

METHODS AND RESULTS

Of 1,074 consecutive NARA-HF study participants with acute decompensated HF admitted to hospital as an emergency between January 2007 and December 2016, we excluded 291 without follow-up data, who died in hospital, or who had previous HF-related hospitalizations, leaving 783 in the analysis. During the median follow-up period of 895 days, 241 patients were re-admitted for HF. The incidence of re-HHF was the highest within the first 30 days of discharge (3.3% [26 patients]) and remained high until 90 days, after which it decreased sharply. Within 90 days of discharge, 63 (8.0%) patients were re-admitted. Kaplan-Meier analysis revealed that patients with 90-day re-HHF had worse prognoses than those without 90-day re-HHF in terms of all-cause death (hazard ratio [HR] 2.321, 95% confidence interval [CI] 1.654-3.174; P<0.001) and cardiovascular death (HR 3.396, 95% CI 2.153-5.145; P<0.001). Multivariate analysis indicated that only male sex was an independent predictor of 90-day re-HHF.

CONCLUSIONS

The incidence of early re-HHF was lower in Japan than in Western countries. Its predictors are not related to the clinical factors of HF, indicating that a new comprehensive approach might be needed to prevent early re-HHF.

Effect of Pharmacist Clinic Visits on 30-Day Heart Failure Readmission Rates at a County Hospital

Purpose: This study evaluated the comparative effectiveness of different pharmacist visit types on reducing readmission rates. Method: A single-center, retrospective cohort study was conducted from January 2015 to July 2017. Patients were 18 years or older with an index heart failure (HF) exacerbation admission. Upon hospital discharge, patients were seen in clinic by a clinical pharmacy specialist (CPS) with collaborative practice agreement (CPA) (High Intensity Bundle), medication therapy management (MTM) pharmacist without CPA (Low Intensity Bundle), or no pharmacist (Standard of Care [SOC]). The primary outcome was 30-day all-cause readmission rate. Secondary outcomes included rate of 30-day HF readmissions and average number of days until readmission in those who were readmitted. Results: Totally, 98 patients were included in the final analysis (35 High Intensity Bundle, 28 Low Intensity Bundle, and 35 SOC). The primary outcome of all-cause readmissions was lower in both the pharmacist groups compared with SOC (CPS 8.6% [3/35] vs SOC 25.7% [9/35], P = 0.046 and MTM 7.1% [2/28] vs SOC 25.7% [9/35], P = 0.057). Incremental differences were seen between visit types for the secondary outcome of 30-day HF readmissions (CPS 2.9% vs MTM 7.1% vs SOC 17.1%, P = 0.039). The average number of days until readmission was longer in the CPS versus the MTM and SOC (26.7 days vs 12.5 days vs 14.1 days, respectively). Conclusion: Post-hospital discharge pharmacist visits were associated with lower 30-day all-cause readmission. In particular, clinic visits with a Higher Intensity Bundle may be more effective in reducing HF readmissions. These exploratory findings warrant further investigation.

Thirty-Day Readmission Rate in Acute Heart Failure Patients Discharged Against Medical Advice in a Matched Cohort Study

OBJECTIVE

To determine the readmission rate in patients with acute heart failure (AHF) discharged against medical advice (AMA).

METHODS

We performed a retrospective analysis using the 2014 National Readmission Database. Patients admitted with a primary diagnosis of AHF were selected. Only those discharged to home and who left AMA were included in the study. The primary outcome was 30-day readmission. We compared the readmission rates among those discharged AMA vs routinely discharged patients using propensity score matching (PSM) to address imbalance in variables between the 2 groups. We matched 3 routinely discharged patients to 1 patient who left AMA.

RESULTS

We identified 273,489 patients with AHF, of whom 116,869 qualified for further study analysis. A total of 2014 patients (1.7%) were in the AMA group and 114,855 (98.3%) were in the routinely discharged group. After PSM, 6042 routinely discharged patients were matched with 2014 patients from the AMA group. The standard mean difference for each variable was less than 10% postmatching. The 30-day readmission rate among those who left AMA was higher than among those routinely discharged (33% vs 20.1%; P<.001). Heart failure (44.8%) was the most common cause of readmission in the AMA group. Patients who left AMA were more likely to be readmitted to a different hospital compared with those routinely discharged (37.4 vs 23.1%; P<.001). They also had a high rate of leaving AMA during the readmission (18 vs 2%; P<.001).

CONCLUSION

Patients with AHF discharged AMA had a significantly higher 30-day readmission rate than did the routinely discharged group.

Pancreatic exocrine insufficiency in patients with chronic heart failure and its possible association with appetite loss

BACKGROUND

Appetite loss is one complication of chronic heart failure (CHF), and its association with pancreatic exocrine insufficiency (PEI) is not well investigated in CHF.

AIM

We attempted to detect the association between PEI and CHF-induced appetite.

METHODS

Patients with CHF were enrolled, and body mass index (BMI), left ventricular ejection fraction (LVEF), New York Heart Association (NYHA) cardiac function grading, B-type natriuretic peptide (BNP), serum albumin, pro-albumin and hemoglobin were evaluated. The pancreatic exocrine function was measured by fecal elastase-1 (FE-1) levels in the enrolled patients. Appetite assessment was tested by completing the simplified nutritional appetite questionnaire (SNAQ). The improvement of appetite loss by supplemented pancreatic enzymes was also researched in this study.

RESULTS

The decrease of FE-1 levels was found in patients with CHF, as well as SNAQ scores. A positive correlation was observed between SNAQ scores and FE-1 levels (r = 0.694, p < 0.001). Pancreatic enzymes supplement could attenuate the decrease of SNAQ scores in CHF patients with FE-1 levels <200 μg/g stool and SNAQ < 14.

CONCLUSIONS

Appetite loss is commonly seen in CHF, and is partially associated with pancreatic exocrine insufficiency. Oral pancreatic enzyme replacement therapy attenuates the chronic heart failure-induced appetite loss. These results suggest a possible pancreatic-cardiac relationship in chronic heart failure, and further experiment is needed for clarifying the possible mechanisms.

Dual Angiotensin Receptor and Neprilysin Inhibition with Sacubitril/Valsartan in Chronic Systolic Heart Failure: Understanding the New PARADIGM

OBJECTIVE

To evaluate the clinical role of sacubitril/valsartan, a novel angiotensin-neprilysin inhibitor, for the treatment of chronic heart failure with a reduced ejection fraction (HFrEF).

DATA SOURCES

A search of PubMed was conducted using a combination of the search terms sacubitril, valsartan, LCZ696, neprilysin inhibition, natriuretic peptide system, renin-angiotensin system, and heart failure with reduced ejection fraction. Bibliographies of all retrieved articles were reviewed for relevant literature. All references included were published between 1980 and May 2015.

STUDY SELECTION/DATA EXTRACTION

All studies and review articles that contained data describing the use of sacubitril/valsartan in HFrEF were reviewed.

DATA SYNTHESIS

HFrEF remains a disease of high morbidity and mortality. Natriuretic peptide (NP) augmentation has emerged as a most promising neurohormonal target in HFrEF. NPs provide vasodilatory, natriuretic, diuretic, and antiproliferative actions to help support the failing heart. Neprilysin, a neutral endopeptidase, is a primary pathway for NP metabolism. Combined inhibition of the renin angiotensin aldosterone system and neprilysin augments the beneficial natriuretic peptide pathway while providing direct antagonism to increases in angiotensin II. In the landmark PARADIGM HF trial, the neprilysin inhibitor sacubitril added to valsartan significantly improved morbidity and mortality over enalapril, a standard of care in HFrEF. Application of these results to clinical practice requires careful considerations of trial design, study patient population, and clinical monitoring.

CONCLUSIONS

Sacubitril/valsartan significantly improved morbidity and mortality in patients with chronic HFrEF but will require careful application to "real-world" populations of HFrEF.

Elevated plasma galectin-3 is associated with near-term rehospitalization in heart failure: a pooled analysis of 3 clinical trials

BACKGROUND

Rehospitalization is a major cause for heart failure (HF)-related morbidity and is associated with considerable loss of quality of life and costs. The rate of unplanned rehospitalization in patients with HF is unacceptably high; current risk stratification to identify patients at risk for rehospitalization is inadequate. We evaluated whether measurement of galectin-3 would be helpful in identifying patients at such risk.

METHODS

We analyzed pooled data from patients (n = 902) enrolled in 3 cohorts (COACH, n = 592; PRIDE, n = 181; and UMD H-23258, n = 129) originally admitted because of HF. Mean patient age was between 61.6 and 72.9 years across the cohorts, with a wide range of left ventricular ejection fraction. Galectin-3 levels were measured during index admission. We used fixed and random-effects models, as well as continuous and categorical reclassification statistics to assess the association of baseline galectin-3 levels with risk of postdischarge rehospitalization at different time points and the composite end point all-cause mortality and rehospitalization.

RESULTS

Compared with patients with galectin-3 concentrations less than 17.8 ng/mL, those with results exceeding this value were significantly more likely to be rehospitalized for HF at 30, 60, 90, and 120 days after discharge, with odds ratios (ORs) of 2.80 (95% CI 1.41-5.57), 2.61 (95% CI 1.46-4.65), 3.01 (95% CI 1.79-5.05), and 2.79 (95% CI 1.75-4.45), respectively. After adjustment for age, gender, New York Heart Association class, renal function (estimated glomerular filtration rate), left ventricular ejection fraction, and B-type natriuretic peptide, galectin-3 remained an independent predictor of HF rehospitalization. The addition of galectin-3 to risk models significantly reclassified patient risk of postdischarge rehospitalization and fatal event at each time point (continuous net reclassification improvement at 30 days of +42.6% [95% CI +19.9%-65.4%], P < .001).

CONCLUSIONS

Among patients hospitalized for HF, plasma galectin-3 concentration is useful for the prediction of near-term rehospitalization.

Incidence and Predictors of End-Stage Renal Disease in Outpatients With Systolic Heart Failure

Background—

Renal dysfunction is an important prognostic factor in heart failure (HF), but whether this dysfunction progresses to end-stage renal disease (ESRD) is unknown. Therefore, we examined incidence and predictors of ESRD in outpatients with HF.

Methods and Results—

Patients with systolic HF were identified in The Danish Heart Failure database and new-onset ESRD from the Danish Registry on Dialysis. Renal function was estimated by The Chronic Kidney Disease Epidemiology Collaboration equation and patients grouped by estimated glomerular filtration rate (eGFR)—group I: ≥60 mL/min per 1.73 m 2 , group II: 30 to 59 mL/min per 1.73 m 2 , group III: 15 to 29 mL/min per 1.73 m 2 , group IV: <15 mL/min per 1.73 m 2 . Cox hazard models for time to ESRD, to death, and the composite end point of ESRD or death were constructed and predictors of ESRD identified. A total of 8204 patients were included in the analyses. Median age was 70 years (Q, 61–77), 28% were women, median left ventricular ejection fraction was 30% (Q, 24–40), and median eGFR was 68 (Q, 51–85) mL/min per 1.73 m 2 . Forty-one patients developed ESRD (1.3/1000 patient-years). Baseline eGFR group II ( P <0.001), eGFR group III ( P <0.001), eGFR group IV ( P <0.001), uncontrolled hypertension ( P =0.049), need of diuretics, and age <60 years ( P =0.016) were associated with time to ESRD.

Conclusions—

ESRD is rare in outpatients with systolic HF and is mainly observed in patients with an eGFR <30 mL/min per 1.73 m 2 . A low eGFR, age <60 years, need of diuretics, and uncontrolled hypertension identify patients with an increased risk for ESRD.