Use of regional transmural agreements to support the right care in the right place for patients with chronic heart failure-a qualitative study

BACKGROUND

Chronic heart failure (CHF) poses a major challenge for healthcare systems. As these patients' needs vary over time in intensity and complexity, the coordination of care between primary and secondary care is critical for them to receive the right care in the right place. To support the continuum of care needed, Dutch regional transmural agreements (RTAs) between healthcare providers have been developed. However, little is known about how the stakeholders have experienced the development and use of these RTAs. The aim of this study was to gain insight into how stakeholders have experienced the development and use of RTAs for CHF and explore which factors affected this.

METHODS

We interviewed 25 stakeholders from 9 Dutch regions based on the Measurement Instrument for Determinants of Innovations framework. Interview recordings were transcribed verbatim and analysed through open thematic coding.

RESULTS

In most cases, the RTA development was considered relatively easy. However, the participants noted that sustainable use of the RTAs faced different complexities and influencing factors. These barriers concerned the following themes: education of primary care providers, referral process, patients' willingness, relationships between healthcare providers, reimbursement by health insurance companies, electronic health record (EHR) systems and outcomes.

CONCLUSION

Some complexities, such as reimbursement and EHR systems, are likely to benefit from specialised support or a national approach. On a regional level, interregional learning can improve stakeholders' experiences. Future research should focus on quantitative effects of RTAs on outcomes and potential financing models for projects that aim to transition care from one setting to another.

Geriatric rehabilitation in older patients with cardiovascular disease: a feasibility study

PURPOSE

Cardiac rehabilitation in older patients after hospitalization because of cardiovascular disease is recommended. However, many older patients do not receive cardiac rehabilitation in daily practice, due to lack of referral and poor adherence. This can be related to impaired clinical and functional status of these patients, who are more likely to present with frailty, frequent comorbidities, and disability. Geriatric rehabilitation might be a possible solution to reduce barriers to cardiac rehabilitation attendance. We developed and implemented an inpatient geriatric rehabilitation programme that was provided immediately after discharge from the hospital, for older patients with a significant functional decline during hospital admission because of cardiovascular disease: 'the GR-cardio programme'. The primary aim of the present study is to investigate feasibility of the GR-cardio programme.

METHODS

This is a retrospective real-life feasibility study describing a consecutive series of older patients receiving the GR-cardio programme, with no control group. All patients had been hospitalized because of cardiovascular disease. Data on patient characteristics, functional status, health-related quality of life (HRQoL), readmissions, and mortality were collected from the patients file on admission, at discharge and 6 months after discharge from the GR-cardio programme. Feasibility of the programme was evaluated using the following outcomes: recruitment, resulting sample characteristics, safety, and preliminary evaluation of patients' responses to the GR-cardio programme.

RESULTS

In total, 58 patients [mean age 78.8 (± 9.8) years; 43% male] were included in the study. On admission, functional status and HRQoL were severely impaired but showed clinically relevant improvements. During the programme, three patients died. Eighty-three percent of all patients were discharged back home after completing the rehabilitation programme with a mean length of 38 days. Mortality rate during follow-up was the highest in patients with heart failure (32%).

CONCLUSIONS

This study indicates that geriatric rehabilitation for patients with cardiovascular disease is feasible. Furthermore, our results show that the GR-cardio programme can probably offer substantial benefits for patients in terms of improving functional status and HRQoL.

Two-year outcome after early or late Intervention in non-ST elevation acute coronary syndrome

OBJECTIVE

To compare long-term outcome of an early to a delayed invasive strategy in high-risk patients with non-ST elevation acute coronary syndrome (NSTE-ACS).

METHODS

This prospective, multicentre trial included patients with NSTE-ACS and at least two out of three of the following high-risk criteria: (1) evidence of extensive myocardial ischaemia on ECG, (2) elevated biomarkers for myocardial necrosis and (3) age above 65 years. Patients were randomised to either an early (angiography and revascularisation if appropriate <12 hours) or a delayed invasive strategy (>48 hours after randomisation). Endpoint for this prespecified long-term follow-up was the composite incidence of death or reinfarction after 2 years. Data collection was performed by telephone contact with the patients, their relatives or general practitioner and by review of hospital records.

RESULTS

Endpoint status after 2-year follow-up was collected in 521 of 542 initially enrolled patients. Incidence of death or reinfarction was 11.8% in the early and 13.1% in the delayed treatment group (relative risk (RR)=0.90, 95% CI 0.57 to 1.42). No significant differences were found in occurrence of the individual components of the primary endpoint: death 6.1% vs 8.9%, RR 0.69 (95% CI 0.37 to 1.27), reinfarction 6.5% vs 5.4%, RR 1.20 (95% CI 0.60 to 2.38). Post-hoc subgroup analysis showed statistical significant interaction between age and treatment strategy on outcome (p=0.02).

CONCLUSIONS

After 2 years follow-up, no difference in incidence of death or reinfarction was seen between early to late invasive strategy. These findings are in line with results of other studies with longer follow-up. Older patients seem to benefit more from early invasive treatment.

Timing of intervention in high-risk non-ST-elevation acute coronary syndromes in PCI versus non-PCI centres : Sub-group analysis of the ELISA-3 trial

AIMS

To compare the effect of timing of intervention in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) in percutaneous coronary intervention (PCI) versus non-PCI centres.

METHODS AND RESULTS

A post-hoc sub-analysis was performed of the ELISA III trial, a randomised multicentre trial investigating outcome of early (< 12 h) versus late (> 48 h) angiography and revascularisation in 542 patients with high-risk NSTE-ACS. 90 patients were randomised in non-PCI centres and tended to benefit more from an early invasive strategy than patients included in the PCI centre (relative risk 0.23 vs. 0.85 [p for interaction = 0.089] for incidence of the combined primary endpoint of death, reinfarction and recurrent ischaemia after 30 days of follow-up). This was largely driven by reduction in recurrent ischaemia. In non-PCI centres, patients randomised to the late group had a 4 and 7 day longer period until PCI or coronary artery bypass grafting, respectively. This difference was less pronounced in the PCI centre.

CONCLUSIONS

This post-hoc analysis from the ELISA-3 trial suggests that NSTE-ACS patients initially hospitalised in non-PCI centres show the largest benefit from early angiography and revascularisation, associated with a shorter waiting time to revascularisation. Improved patient logistics and transfer between non-PCI and PCI centres might therefore result in better clinical outcome.

Do Self-Management Interventions Work in Patients With Heart Failure? An Individual Patient Data Meta-Analysis

BACKGROUND

Self-management interventions are widely implemented in the care for patients with heart failure (HF). However, trials show inconsistent results, and whether specific patient groups respond differently is unknown. This individual patient data meta-analysis assessed the effectiveness of self-management interventions in patients with HF and whether subgroups of patients respond differently.

METHODS AND RESULTS

A systematic literature search identified randomized trials of self-management interventions. Data from 20 studies, representing 5624 patients, were included and analyzed with the use of mixed-effects models and Cox proportional-hazard models, including interaction terms. Self-management interventions reduced the risk of time to the combined end point of HF-related hospitalization or all-cause death (hazard ratio, 0.80; 95% confidence interval [CI], 0.71-0.89), time to HF-related hospitalization (hazard ratio, 0.80; 95% CI, 0.69-0.92), and improved 12-month HF-related quality of life (standardized mean difference, 0.15; 95% CI, 0.00-0.30). Subgroup analysis revealed a protective effect of self-management on the number of HF-related hospital days in patients <65 years of age (mean, 0.70 versus 5.35 days; interaction P=0.03). Patients without depression did not show an effect of self-management on survival (hazard ratio for all-cause mortality, 0.86; 95% CI, 0.69-1.06), whereas in patients with moderate/severe depression, self-management reduced survival (hazard ratio, 1.39; 95% CI, 1.06-1.83, interaction P=0.01).

CONCLUSIONS

This study shows that self-management interventions had a beneficial effect on time to HF-related hospitalization or all-cause death and HF-related hospitalization alone and elicited a small increase in HF-related quality of life. The findings do not endorse limiting self-management interventions to subgroups of patients with HF, but increased mortality in depressed patients warrants caution in applying self-management strategies in these patients.

Effect of a nurse-coordinated prevention programme on cardiovascular risk after an acute coronary syndrome: main results of the RESPONSE randomised trial

Objective

To quantify the impact of a practical, hospital-based nurse-coordinated prevention programme on cardiovascular risk, integrated into the routine clinical care of patients discharged after an acute coronary syndrome, as compared with usual care only.

Design

RESPONSE (Randomised Evaluation of Secondary Prevention by Outpatient Nurse SpEcialists) was a randomised clinical trial.

Setting

Multicentre trial in secondary and tertiary healthcare settings.

Participants

754 patients admitted for acute coronary syndrome.

Intervention

A nurse-coordinated prevention programme, consisting of four outpatient nurse clinic visits, focusing on healthy lifestyles, biometric risk factors and medication adherence, in addition to usual care.

Main outcome measures

The main outcome was 10-year cardiovascular mortality risk as estimated by Systematic Coronary Risk Evaluation at 12 months follow-up. Secondary outcomes included Framingham Coronary Risk Score at 12 months, in addition to changes in individual risk factors. Risk factor control was classified as ‘poor’ if 0 to 3 factors were on target, ‘fair’ if 4 to 6 factors were on target, and ‘good’ if 7 to 9 were on target.

Results

The mean Systematic Coronary Risk Evaluation at 12 months was 4.4 per cent (SD 4.5) in the intervention group and 5.4 per cent (SD 6.2) in the control group (p=0.021), representing a 17.4% relative risk reduction. At 12 months, risk factor control classified as ‘good’ was achieved in 35% of patients in the intervention group compared with 25% in the control group (p=0.003). Attendance to the nurse-coordinated prevention programme was 92%. In the intervention group, 86 rehospitalisations were observed against 132 in the control group (relative risk reduction 34.8%, p=0.023).

Conclusions

The nurse-coordinated hospital-based prevention programme in addition to usual care is a practical, yet effective method for reduction of cardiovascular risk in patients with coronary disease. Our data suggest that the counselling component of the programme may lead to a reduction in hospital readmissions.

Trial Registration trialregister.nl Identifier

TC1290.

Strategies to detect abnormal glucose metabolism in people at high risk of cardiovascular disease from the ORIGIN (Outcome Reduction with Initial Glargine Intervention) trial population

BACKGROUND

To investigate whether the combination of HbA1c and fasting plasma glucose (FPG) can be used for the diagnosis of diabetes and impaired glucose tolerance (IGT) in people at high risk of cardiovascular disease (CVD).

METHODS

A cross-sectional study was performed on 2907 people at high risk of cardiovascular events but without a previous diagnosis of diabetes. Optimal cut-off points and the diagnostic potential of FPG, HbA1c, and their combination were determined.

RESULTS

The sensitivity of the usually applied FPG cut-off point of 7.0 mmol/L to diagnose diabetes mellitus was low (59.0%). Receiver operating characteristic (ROC) curve analysis indicated that the optimal cut-off points for the diagnosis of diabetes using FPG and HbA1c were 6.4 mmol/L (sensitivity 75.7%; specificity 77.5%; likelihood ratio 3.37) and 5.9% (41 mmol/mol; sensitivity 68.7%; specificity 67.1%; likelihood ratio 2.09), respectively. To diagnose IGT, the optimal cut-off points for FPG and HbA1c were 6.1 mmol/L (sensitivity 57.1%; specificity 57.9%) and 5.7% (39 mmol/mol; sensitivity 63.8%; specificity 60.3%), respectively. For diabetes, combining cut-off points for FPG and HbA1c identified four categories with likelihood ratios ranging from 5.59 to 0.21, and post-test probabilities between 69.3% and 7.8%. For IGT, likelihood ratios varied between 2.05 and 0.56, whereas post-test probabilities ranged from 84.0% to 58.8%.

CONCLUSIONS

Using FPG alone results in the underdiagnosis of glucometabolic abnormalities in people at high risk of CVD. Using an algorithm with both HbA1c and FPG improves the detection of diabetes, but not IGT, and could be easily implemented in patient care.

RESPONSE study: Randomised Evaluation of Secondary Prevention by Outpatient Nurse SpEcialists: Study design, objectives and expected results

Background. Patients with coronary artery disease are at high risk of coronary events and death, but effective secondary prevention can reduce this risk. There is a gap between guidelines on secondary prevention and the implementation of these measures, which could potentially be reduced by nurse led prevention clinics (NLPC).Objectives. The aim of the current study is to quantify the impact of NLPC on the risk of cardiovascular events in patients with established coronary artery disease.Methods. A randomised, multicentre clinical trial of NLPC in addition to usual care or usual care alone in post-acute coronary syndrome patients. (Neth Heart J 2009;17:322-8.).

Management of chronic heart failure guided by individual N-terminal pro-B-type natriuretic peptide targets: results of the PRIMA (Can PRo-brain-natriuretic peptide guided therapy of chronic heart failure IMprove heart fAilure morbidity and mortality?) study

OBJECTIVES

The purpose of this study was to assess whether management of heart failure (HF) guided by an individualized N-terminal pro-B-type natriuretic peptide (NT-proBNP) target would lead to improved outcome compared with HF management guided by clinical assessment alone.

BACKGROUND

Natriuretic peptides may be attractive biomarkers to guide management of heart failure (HF) and help select patients in need of more aggressive therapy. The PRIMA (Can PRo-brain-natriuretic peptide guided therapy of chronic heart failure IMprove heart fAilure morbidity and mortality?) study is, to our knowledge, the first large, prospective randomized study to address whether management of HF guided by an individualized target NT-proBNP level improves outcome.

METHODS

A total of 345 patients hospitalized for decompensated, symptomatic HF with elevated NT-proBNP levels at admission were included. After discharge, patients were randomized to either clinically-guided outpatient management (n = 171), or management guided by an individually set NT-proBNP (n = 174) defined by the lowest level at discharge or 2 weeks thereafter. The primary end point was defined as number of days alive outside the hospital after index admission.

RESULTS

HF management guided by this individualized NT-proBNP target increased the use of HF medication (p = 0.006), and 64% of HF-related events were preceded by an increase in NT-proBNP. Nevertheless, HF management guided by this individualized NT-proBNP target did not significantly improve the primary end point (685 vs. 664 days, p = 0.49), nor did it significantly improve any of the secondary end points. In the NT-proBNP-guided group mortality was lower, as 46 patients died (26.5%) versus 57 (33.3%) in the clinically-guided group, but this was not statistically significant (p = 0.206).

CONCLUSIONS

Serial NT-proBNP measurement and targeting to an individual NT-proBNP value did result in advanced detection of HF-related events and importantly influenced HF-therapy, but failed to provide significant clinical improvement in terms of mortality and morbidity. (Effect of NT-proBNP Guided Treatment of Chronic Heart Failure [PRIMA]; NCT00149422).

Predictive value of plasma galectin-3 levels in heart failure with reduced and preserved ejection fraction

AIMS

galectin-3 is an emerging biomarker which has been studied in relatively small heart failure (HF) cohorts with predominantly systolic HF. We studied the prognostic value of base-line galectin-3 in a large HF cohort, with preserved and reduced left ventricular ejection fraction (LVEF), and compared this to other biomarkers.

METHODS

we studied 592 HF patients who had been hospitalized for HF and were followed for 18 months. The primary end-point was a composite of all-cause mortality and HF hospitalization.

RESULTS

a doubling of galectin-3 levels was associated with a hazard ratio (HR) of 1.97 (1.62-2.42) for the primary outcome (P < 0.001). After correction for age, gender, BNP, eGFR, and diabetes the HR was 1.38 (1.07-1.78; P = 0.015). Galectin-3 levels were correlated with higher IL-6 and CRP levels (P < 0.002). Changes of galectin-3 levels after 6 months did not add prognostic information to the base-line value (n = 291); however, combining plasma galectin-3 and BNP levels increased prognostic value over either biomarker alone (ROC analysis, P < 0.05). The predictive value of galectin-3 was stronger in patients with preserved LVEF (n = 114) compared to patients with reduced LVEF (P < 0.001).

CONCLUSIONS

galectin-3 is an independent marker for outcome in HF and appears to be particularly useful in HF patients with preserved LVEF.

Prognostic value of galectin-3, a novel marker of fibrosis, in patients with chronic heart failure: data from the DEAL-HF study

Aims

Biomarkers are increasingly being used in the management of patients with chronic heart failure (HF). Galectin-3 is a recently developed biomarker associated with fibrosis and inflammation, and it may play a role in cardiac remodeling in HF. We determined its prognostic value in patients with chronic HF.

Methods and results

Patients with chronic HF (New York Heart Association functional class III or IV) who participated in the Deventer–Alkmaar heart failure study were studied. Galectin-3 levels were determined at baseline using a novel optimized enzyme-linked immunosorbent assay. Univariate and multivariate analyses were used to determine the prognostic value of this biomarker. We studied 232 patients; their mean age was 71 ± 10 years, 72% were male, and 96% were in NYHA class III. During a follow-up period of 6.5 years, 98 patients died. Galectin-3 was a significant predictor of mortality risk after adjustment for age and sex, and severity of HF and renal dysfunction, as assessed by NT-proBNP and estimated glomerular filtration rate, respectively (hazard ratio per standard deviation 1.24, 95% CI 1.03–1.50, P = 0.026).

Conclusion

Plasma galectin-3 is a novel prognostic marker in patients with chronic HF. Its prognostic value is independent of severity of HF, as assessed by NT-proBNP levels, and it may potentially be used in the management of such patients.

Continuous vs episodic prophylactic treatment with amiodarone for the prevention of atrial fibrillation: a randomized trial

CONTEXT

Amiodarone effectively suppresses atrial fibrillation but causes many adverse events.

OBJECTIVE

To compare major events in patients randomized to receive episodic amiodarone treatment with those who received continuous amiodarone treatment while still aiming to prevent atrial fibrillation.

DESIGN, SETTING, AND PARTICIPANTS

A randomized trial of 209 ambulatory patients with recurrent symptomatic persistent atrial fibrillation, conducted from December 2002 through March 2007 at 7 Dutch medical centers.

INTERVENTION

Patients were randomly assigned to receive either episodic or continuous amiodarone treatment after electrical cardioversion following amiodarone loading. Episodic amiodarone treatment was discontinued after a month of sinus rhythm and reinitiated if atrial fibrillation relapsed (1 month peri-electrical cardioversion). In the continuous treatment group amiodarone was maintained throughout.

MAIN OUTCOME MEASURES

The primary end point was a composite of amiodarone and underlying heart disease-related major events. The secondary end points were all-cause mortality and cardiovascular hospitalizations.

RESULTS

After a median follow-up of 2.1 years (range, 0.4-2.5 years), 51 (48%) of those receiving episodic treatment vs 64 (62%) receiving continuous treatment had sinus rhythm (P = .05). There were 85 atrial fibrillation recurrences (80%) among the episodic treatment group vs 56 (54%) in the continuous treatment group (P < .001). No significant difference existed in the incidence of the primary composite end point between each group (37 [35%] episodic vs 34 [33%] continuous; incidence rate difference, 0.2; 95% confidence interval [CI], -10.2 to 10.6). However, there were nonstatistically significant differences in the incidence of amiodarone-related major events (20 [19%] episodic vs 25 [24%] continuous; incidence rate difference, -2.0; 95% CI, -8.7 to 4.6) and underlying heart disease-related major events (17 [16%] episodic vs 9 [9%] continuous; incidence rate difference, 3.6; 95% CI, -1.6 to 8.7). All-cause mortality and cardiovascular hospitalizations were higher among those receiving episodic treatment (56 [53%] vs 35 [34%], P = .02).

CONCLUSIONS

In this study population, there was no difference in the composite of amiodarone and cardiac major adverse events between groups. However, patients receiving episodic treatment had a significantly increased rate of atrial fibrillation recurrence and a significantly higher rate of all-cause mortality and cardiovascular hospitalizations.

TRIAL REGISTRATION

clinicaltrials.gov Identifier: NCT00392431.

[Value of basic and intensive management of patients with heart failure; results of a randomised controlled clinical trial]

OBJECTIVE

To determine the efficacy of 2 nurse-directed programmes of different intensity for the counselling and follow-up of patients hospitalised for heart failure, compared with standard care by a cardiologist.

DESIGN

Multicentre randomised clinical trial (www.trialregister.nl: NCT 98675639).

METHOD

A total of 1023 patients were randomized after hospitalisation for heart failure to 1 of 3 treatment strategies: standard care provided by a cardiologist, follow-up care from a cardiologist with basic counselling and support by a nurse specialising in heart failure, or follow-up care from a cardiologist with intensive counselling and support by a nurse specialising in heart failure. Primary end points were the time to rehospitalisation due to heart failure or death and the number of days lost to rehospitalisation or death during the 18-month study period. Data were analysed on an intent-to-treat basis.

RESULTS

Mean patient age was 71 years, 38% were women, 50% had mild heart failure and 50% had severe heart failure. During the study, 411 patients (40%) were rehospitalised due to heart failure or died from any cause: 42% in the control group, and 41% and 38% in the basic and intensive support groups, respectively (differences not significant). The time to rehospitalisation or death was similar in the 3 groups: hazard ratios for the basic and intensive support groups versus the control group were 0.96 (95% CI: 0.76-1.21; p = 0.73) and 0.93 (95% CI: 0.73-1.17; p = 0.53), respectively. The number of days lost to rehospitalisation or death was 39,960 in the control group; this number was 15% less in the intervention groups, but the difference was not significant. However, there was a trend toward lower mortality in the intervention groups. In all 3 groups, more visits occurred than planned, which may have had a considerable effect on care, notably in the control group.

CONCLUSION

The results of this study indicated that the provision of additional counselling and support by a nurse specialising in heart failure as an adjuvant to intensive follow-up care provided by a cardiologist does not always lead to a reduction in rehospitalisation frequency.

Effect of moderate or intensive disease management program on outcome in patients with heart failure: Coordinating Study Evaluating Outcomes of Advising and Counseling in Heart Failure (COACH)

BACKGROUND

Heart failure (HF) disease management programs are widely implemented, but data about their effect on outcome have been inconsistent.

METHODS

The Coordinating Study Evaluating Outcomes of Advising and Counseling in Heart Failure (COACH) was a multicenter, randomized, controlled trial in which 1023 patients were enrolled after hospitalization because of HF. Patients were assigned to 1 of 3 groups: a control group (follow-up by a cardiologist) and 2 intervention groups with additional basic or intensive support by a nurse specializing in management of patients with HF. Patients were studied for 18 months. Primary end points were time to death or rehospitalization because of HF and the number of days lost to death or hospitalization.

RESULTS

Mean patient age was 71 years; 38% were women; and 50% of patients had mild HF and 50% had moderate to severe HF. During the study, 411 patients (40%) were readmitted because of HF or died from any cause: 42% in the control group, and 41% and 38% in the basic and intensive support groups, respectively (hazard ratio, 0.96 and 0.93, respectively; P = .73 and P = .52, respectively). The number of days lost to death or hospitalization was 39 960 in the control group, 33 731 days for the basic intervention group (P = .81), and 34 268 for the intensive support group (P = .49). All-cause mortality occurred in 29% of patients in the control group, and there was a trend toward lower mortality in the intervention groups combined (hazard ratio, 0.85; 95% confidence interval, 0.66-1.08; P = .18). There were slightly more hospitalizations in the 2 intervention groups (basic intervention group, P = .89; and intensive support group, P = .60).

CONCLUSIONS

Neither moderate nor intensive disease management by a nurse specializing in management of patients with HF reduced the combined end points of death and hospitalization because of HF compared with standard follow-up. There was a nonsignificant, potentially relevant reduction in mortality, accompanied by a slight increase in the number of short hospitalizations in both intervention groups. Clinical Trial Registry http://trialregister.nl Identifier: NCT 98675639.

Randomized, double-blind, placebo-controlled study to evaluate the effect of two dosing regimens of darbepoetin alfa in patients with heart failure and anaemia

AIMS

Anaemia is common in chronic heart failure (CHF) and associated with worse outcome. This randomized, double-blind, placebo-controlled study evaluated the effect of two darbepoetin alfa dosing regimens on haemoglobin (Hb) rate of rise and clinical effects in patients with CHF and anaemia.

METHODS AND RESULTS

Patients with CHF (>or=3 months), left ventricular ejection fraction (LVEF) <or= 40%, and Hb 9.0 to 12.5 g/dL received darbepoetin alfa subcutaneously every 2 weeks for 26 weeks at a starting weight-adjusted dose of 0.75 mcg/kg (n = 56) or a fixed dose of 50 mcg (n = 54), or placebo (n = 55), to gradually achieve and maintain a target Hb of 14.0 +/- 1.0 g/dL. Endpoints included rate of Hb rise per week during titration, safety, and changes in 6 min walk distance, New York Heart Association (NYHA) class, LVEF, and quality of life. Most subjects were NYHA class II-III. Mean (SD) age was 71 (11) years, LVEF was 28 (9), and Hb 11.5 (0.7) g/dL. Rate of Hb rise was equivalent between darbepoetin alfa weight-based (+1.87 +/- 1.36 g/dL) and fixed dosing (+1.64 +/- 0.98 g/dL) groups, vs. + 0.07 +/- 1.08 g/dL in the placebo group. Mean Hb concentrations by week 27 were 13.4 and 13.2 g/dL, in the weight-based and fixed dosing groups, respectively. There were non-significant improvements in the combined darbepoetin alfa group vs. placebo for 6 min walk distance (P = 0.074) and Patient's Global Assessment score (P = 0.057). There was a significant improvement in Kansas City Cardiomyopathy Questionnaire total symptom score (8.2 vs. 1.5 points; P = 0.027) but no change in NYHA class, LVEF, and Minnesota Living With Heart Failure Questionnaire score. Six treatment-unrelated deaths occurred in the 110 darbepoetin alfa treated patients, and none in the 55 placebo treated patients. Other adverse events were similar between groups.

CONCLUSION

In this study of patients with CHF and anaemia, treatment with darbepoetin alfa raised Hb using different dosing regimens. Darbepoetin alfa improved some quality of life indices, but its safety requires further exploration. Larger trials are needed to determine the effects on long-term morbidity and mortality.

Added value of a physician-and-nurse-directed heart failure clinic: results from the Deventer-Alkmaar heart failure study

AIM

To determine whether an intensive intervention at a heart failure (HF) clinic by a combination of a clinician and a cardiovascular nurse, both trained in HF, reduces the incidence of hospitalisation for worsening HF and/or all-cause mortality (primary end point) and improves functional status (including left ventricular ejection fraction, New York Heart Association (NYHA) class and quality of life) in patients with NYHA class III or IV.

SETTING

Two regional teaching hospitals in The Netherlands.

METHODS

240 patients were randomly allocated to the 1-year intervention (n = 118) or usual care (n = 122). The intervention consisted of 9 scheduled patient contacts-at day 3 by telephone, and at weeks 1, 3, 5, 7 and at months 3, 6, 9 and 12 by a visit-to a combined, intensive physician-and-nurse-directed HF outpatient clinic, starting within a week after hospital discharge from the hospital or referral from the outpatient clinic. Verbal and written comprehensive education, optimisation of treatment, easy access to the clinic, recommendations for exercise and rest, and advice for symptom monitoring and self-care were provided. Usual care included outpatient visits initialized by individual cardiologists in the cardiology departments involved and applying the guidelines of the European Society of Cardiology.

RESULTS

During the 12-month study period, the number of admissions for worsening HF and/or all-cause deaths in the intervention group was lower than in the control group (23 vs 47; relative risk (RR) 0.49; 95% confidence interval (CI) 0.30 to 0.81; p = 0.001). There was an improvement in left ventricular ejection fraction (LVEF) in the intervention group (plus 2.6%) compared with the usual care group (minus 3.1%; p = 0.004). Patients in the intervention group were hospitalised for a total of 359 days compared with 644 days for those in the usual care group. Beneficial effects were also observed on NYHA classification, prescription of spironolactone, maximally reached dose of beta-blockers, quality of life, self-care behaviour and healthcare costs.

CONCLUSION

A heart failure clinic involving an intensive intervention by both a clinician and a cardiovascular nurse substantially reduces hospitalisations for worsening HF and/or all-cause mortality and improves functional status, while decreasing healthcare costs, even in a country with a primary-care-based healthcare system.

Determinants of increased angiotensin II levels in severe chronic heart failure patients despite ACE inhibition

INTRODUCTION

The beneficial effects of ACE inhibitors are generally ascribed to blockade of neurohormonal activation. However, especially in chronic heart failure (CHF) patients plasma angiotensin II and aldosterone levels can be elevated despite ACE inhibition, the so-called ACE escape. In the present study, we aimed to identify the frequency and determinants of ACE escape in CHF patients.

METHODS

We studied 99 stable chronic heart failure patients (NYHA class III and IV, 66% ischemic etiology) receiving long-term therapy with ACE inhibitors. In all patients, cardiac, renal, and neurohormonal parameters were measured. ACE escape was defined as plasma angiotensin level > or = 16 pmol/L.

RESULTS

Mean (+/- SD) left ventricular ejection fraction of our 99 patients (79 men and 20 women, age 69 +/- 12 years) was 28 +/- 10%. In addition to an ACE inhibitor, 93% of patients received diuretics, 71% a beta-blocker, and 49% spironolactone. None of the patients used an angiotensin receptor blocker. In our population, 45% of the patients had an angiotensin II plasma concentration higher than 16 pmol/L (median concentration was 14.1 pmol/L). Spironolactone use was an independent predictor of elevated plasma angiotensin II levels. Furthermore, spironolactone users had significantly higher plasma active renin protein and aldosterone levels. Plasma angiotensin II concentration was positively correlated to active renin, plasma angiotensin I and plasma aldosterone. No correlation was found between plasma angiotensin II levels and serum ACE activity, dose of ACE inhibitor, or duration of use.

CONCLUSION

In a group of severe chronic heart failure patients, 45% had elevated plasma angiotensin II levels independent of serum ACE activity despite long-term ACE inhibitor use. Although a causal link could not be proven, an association was found between spironolactone use and active renin protein, angiotensin II and aldosterone levels, suggesting that escape from ACE is mainly caused by a feedback mechanism.

LDL-C/HDL-C ratio in subjects with cardiovascular disease and a low HDL-C: results of the RADAR (Rosuvastatin and Atorvastatin in different Dosages And Reverse cholesterol transport) study

BACKGROUND

The ratio of low-density lipoprotein cholesterol and high-density lipoprotein cholesterol (LDL-C/HDL-C) is a reliable predictor of cardiovascular risk. Low HDL-C levels in patients with coronary artery disease are associated with a high risk for cardiovascular events.

OBJECTIVES

This study compared the effects of rosuvastatin and atorvastatin on the LDL-C/HDL-C.

METHODS

Patients aged 40-80 years with established cardiovascular disease and HDL-C < 1.0 mmol/L (< 40 mg/dL) entered as a 6-week dietary run-in period, before randomisation to open-label treatment with rosuvastatin 10 mg (n = 230) or atorvastatin 20 mg (n = 231) for 6 weeks. Doses were increased after 6 weeks to rosuvastatin 20 mg or atorvastatin 40 mg, and after 12 weeks to rosuvastatin 40 mg or atorvastatin 80 mg. Serum lipid parameters were measured at baseline and 6, 12 and 18 weeks.

RESULTS

After 6 weeks of treatment, mean percentage change from baseline in LDL-C/HDL-C ratio was -47.0% in the rosuvastatin group and -41.9% in the atorvastatin group (p < 0.05 for between-group comparison). After 12 and 18 weeks of treatment, change from baseline was -53.0% and -57.3%, respectively, for rosucastatin, compared with -47.9% and -49.6%, respectively, for atorvastatin (p < 0.01 and p < 0.001, respectively, for between-group comparison). Rosuvastatin also reduced LDL-C, total cholesterol/HDL-C significantly more than atorvastatin at all three time points, and significantly improved total cholesterol/HDL-C and apolipoprotein B/A-I ratios.

CONCLUSIONS

Rosuvastatin 10, 20 and 40 mg is significantly more effective than atorvastatin 20, 40 and 80 mg, respectively, in improving the LDL-C/HDL-C ratio in patients with cardiovascular disease and low HDL-C. Further studies are required to clarify the benefits of rosuvastatin for reduction of cardiovascular risk.

Heart failure programmes in countries with a primary care-based health care system. Are additional trials necessary? Design of the DEAL-HF study

BACKGROUND

Several randomised studies of heart failure (HF) management programmes in the United States, Australia and Europe have shown a considerable reduction in hospitalisation rates for HF. In this article, a comprehensive review of these studies will be provided and their applicability to countries, with a primary care-based healthcare system, will be discussed. In addition, the design of the Deventer-Alkmaar HF Project (DEAL-HF), a randomised study of the effect of a nurse and physician-directed intervention over 1 year in The Netherlands, will also be presented.

AIM

To discuss the applicability of the results of available studies on heart failure management programmes to countries with well-structured primary care facilities and to determine whether additional trials should be conducted in these countries.

METHODS

We performed a literature search in PubMed. In a review of the available studies, essential methodological aspects, in particular, the population involved, the sample size, follow-up period, setting, type of intervention, and the outcome parameters, are discussed critically. Also, the applicability of these studies to countries with a primary care-based healthcare system and easy access to medical care is evaluated.

CONCLUSION

Applicability of the results of the available studies on the efficacy of heart failure management programmes to countries with a primary care-based health care system is doubtful. An efficacy trial in a country with a well-established primary care-based healthcare system, such as The Netherlands, is due to report soon (DEAL-HF).

Molecular genetic analysis of six Dutch families with atrial fibrillation

BACKGROUND

Atrial fibrillation (AF), the most common cardiac arrhythmia, is characterised by rapid and irregular contraction of the atrium. The risk of AF increases with age and AF increases the risk of various heart disorders, stroke and mortality. AF can occur in a sporadic or familial form. The underlying mechanism leading to AF is not well known but genetic analysis can increase our insight into the molecular pathways in AF. Detailed information on the molecular mechanisms of a disorder increase options for diagnosis and treatment. Recently, a gain-of-function mutation in exon of the KCNQ1 gene located on chromosome 11 was identified in a large Chinese AF family. KCNQ1 associates with KCNE1 or KCNE2 (both located on chromosome 21) to form cardiac potassium channels. Subsequent analysis of Chinese families showed a KCNE2 mutation in two families. Other genetic studies show linkage to chromosome 6 and 10, indicating genetic heterogeneity. A number of studies have shown that altered expression of the atrial connexin40 protein is a risk factor for AF. Connexin genes encode gap-junction proteins that are important in cardiac conduction and for normal wave propagation.

OBJECTIVES/METHODS

In this study we analysed the role of KCNQ1, KCNE1 coding region and Cx40 promoter region in six Dutch AF families by sequence analysis.

CONCLUSION

No mutations were found in these genes. The absence of mutations indicates genetic heterogeneity in familial AF; however, further research is needed. Candidate genes are being sequenced, linkage analysis in a large family will be performed and additional AF families will be collected.

The relevance of heart failure severity for treatment with evidence-based pharmacotherapy in general practice

AIMS

Internationally, research indicates that pharmacotherapy for chronic heart failure (CHF) is sub-optimal. Traditionally, assessment of drug use in heart failure has focused on the use of individual agents irrespective of CHF severity. This study investigates drug use for CHF patients in general practice with respect to the available evidence, incorporating both disease severity and the use of combination drug regimes.

METHODS AND RESULTS

A cross-sectional survey of 769 Dutch CHF patients was performed as part of IMPROVEMENT of HF study. For each New York Heart Association severity classification the minimum treatment appropriate for the heart failure severity according to the scientific evidence available at the time of the study (1999) was defined. The proportion of patients treated with each drug increased with increasing severity, with the exception of the beta-blockers. Patients with less severe heart failure were approximately four to eight times more likely to receive evidence-based treatment than those with more severe heart failure.

DISCUSSION

To assess pharmacological treatment of heart failure, in relation to the available evidence, it is important to take severity into account. While the number of drugs prescribed increased with increasing severity, the use of evidence-based regimes was lower in patients with more severe heart failure.