Publications by authors named "Dunselman P"

Aims: The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula estimates glomerular filtration rate (GFR) better than the simplified Modification of Diet in Renal Disease (sMDRD) formula in numerous populations. It has not previously been validated in heart failure patients.

Methods And Results: The GFR was measured in 120 patients with chronic systolic heart failure (CHF) using [(125)I]iothalamate clearance (GFR(IOTH)) and estimated using the sMDRD and CKD-EPI equations.

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Convulsions and loss of consciousness can be caused by, among other things, arrhythmias, conduction disorders or epilepsy. In clinical practice it can be difficult to distinguish between these causes of syncope, even for well-trained specialists. Patients with cardiac syncope have a substantial risk of subsequent sudden death.

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Renal insufficiency is common in patients with heart failure (HF), with both acute kidney injury and worsening renal function being associated with poor prognosis. The interplay between cardiac and renal failure has been termed the cardiorenal syndrome and is currently the subject of intense investigation. Urinary biochemistry has several advantages over blood or serum analyses, including lower costs, better patient comfort, and higher sensitivity to renal injury.

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We assessed the independent effects of beta blockers, calcium antagonists, lipid-lowering drugs, angiotensin converting enzyme inhibitors (ACEIs), angiotensin receptor blockers (ARBs), anti-platelet drugs, vitamin K antagonists, percutaneous coronary intervention (PCI) and coronary artery by-pass grafting (CABG) on mortality and on the composite endpoint of death, myocardial infarction, stroke or heart failure in patients with stable angina pectoris. We estimated the effects of the interventions used at baseline by multivariate Cox regression and during follow-up by G-estimation in 7,665 patients followed for a mean of 5 years in the ACTION trial. Adjusted hazard ratios (95% confidence intervals) comparing all cause mortality among users during follow-up to non-users were 1.

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Objectives: The purpose of this study was to determine whether coenzyme Q₁₀ is an independent predictor of prognosis in heart failure.

Background: Blood and tissue concentrations of the essential cofactor coenzyme Q₁₀ are decreased by statins, and this could be harmful in patients with heart failure.

Methods: We measured serum coenzyme Q₁₀ in 1,191 patients with ischemic systolic heart failure enrolled in CORONA (Controlled Rosuvastatin Multinational Study in Heart Failure) and related this to clinical outcomes.

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Aims: To examine the relationship between baseline intermittent claudication and outcomes in patients enrolled in the Controlled Rosuvastatin Multinational Trial in Heart Failure trial (CORONA). Intermittent claudication is an independent predictor of worse outcome in coronary heart disease, but its prognostic importance in heart failure (HF) is unknown. Patients aged >or=60 years with NYHA class II-IV, low ejection fraction HF of ischaemic aetiology were enrolled in CORONA.

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In patients with heart failure (HF), statin treatment might improve myocardial perfusion, but could also have detrimental effects on myocardial metabolism. A predefined substudy of the Controlled Rosuvastatin Multinational Trial in Heart Failure (CORONA) trial sought to determine the effects of statin treatment on myocardial blood flow reserve and cardiac metabolism. Sixteen patients with HF (New York Heart Association class II or III) were randomized to rosuvastatin 10 mg/day (n = 8) or placebo treatment (n = 8).

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Aims: To estimate the cost-effectiveness of 10 mg rosuvastatin daily for older patients with systolic heart failure in the Controlled Rosuvastatin Multinational Study in Heart Failure (CORONA) trial.

Methods And Results: This within trial analysis of CORONA used major cardiovascular (CV) events as the outcome measure. Resource use was valued and the costs of hospitalizations, procedures, and statin use compared.

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Background: We examined whether the antiinflammatory action of statins may be of benefit in heart failure, a state characterized by inflammation in which low cholesterol is associated with worse outcomes.

Methods And Results: We compared 10 mg rosuvastatin daily with placebo in patients with ischemic systolic heart failure according to baseline high sensitivity-C reactive protein (hs-CRP) <2.0 mg/L (placebo, n=779; rosuvastatin, n=777) or > or = 2.

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Objectives: We investigated whether plasma amino-terminal pro-brain natriuretic peptide (NT-proBNP), a marker of cardiac dysfunction and prognosis measured in CORONA (Controlled Rosuvastatin Multinational Trial in Heart Failure), could be used to identify the severity of heart failure at which statins become ineffective.

Background: Statins reduce cardiovascular morbidity and mortality in many patients with ischemic heart disease but not, overall, those with heart failure. There must be a transition point at which treatment with a statin becomes futile.

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Aims: Few prognostic models in heart failure have been developed in typically elderly patients treated with modern pharmacological therapy and even fewer included simple biochemical tests (such as creatinine), new biomarkers (such as natriuretic peptides), or, especially, both. In addition, most models have been developed for the single outcome of all-cause mortality.

Methods And Results: We built a series of models for nine different fatal and non-fatal outcomes.

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Spontaneous coronary artery dissection is a very uncommon cause of acute coronary syndrome. It occurs predominantly in young to middle-aged women during or after pregnancy. The aetiology remains uncertain.

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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.

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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.

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Objective: To assess the incremental low-density lipoprotein-cholesterol (LDL-C) lowering efficacy of doubling the statin dose or switching to the ezetimibe/simvastatin 10/20 mg combination tablet (EZE/SIMVA) in patients on simvastatin 20 mg or atorvastatin 10 mg not at LDL-C target < 2.5 mmol/L.

Study Design And Methods: Patients with documented coronary heart disease (CHD) and/or type 2 diabetes (DM2) with LDL-C > or = 2.

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Background: Patients with systolic heart failure have generally been excluded from statin trials. Acute coronary events are uncommon in this population, and statins have theoretical risks in these patients.

Methods: A total of 5011 patients at least 60 years of age with New York Heart Association class II, III, or IV ischemic, systolic heart failure were randomly assigned to receive 10 mg of rosuvastatin or placebo per day.

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Objective: Paraoxonase-1 (PON-1) is a high-density lipoprotein (HDL) associated enzyme involved in the protective mechanisms of HDL. Our aim was to compare the effect of treatment with rosuvastatin and atorvastatin on serum PON-1 activity.

Methods: We performed a prespecified prospective study in 68 patients, part of a larger, multicentre randomized study--RADAR (Rosuvastatin and Atorvastatin in different Dosages And Reverse cholesterol transport).

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Since the 1960s, calcium antagonists have been available for the treatment of angina pectoris and hypertension. The first of this class, nifedipine, was introduced and readily accepted as the third treatment option for angina, alongside beta-blockers and nitrates. However, the short-acting formulations of nifedipine had pharmacokinetic properties that were far from ideal and in 1995, several studies involving various dosing regimens reported possible dangerous effects in secondary prevention.

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Background And Objective: Published clinical trial data rarely allow assessment of the health care resource utilization implications of treatment. We give an example of how these can be assessed given appropriate tabulation of data.

Methods: Data from a trial comparing long-acting nifedipine gastrointestinal therapeutic system to placebo in 7,665 patients with stable angina pectoris was analyzed.

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Aims: To describe the clinical course of patients with stable angina due to coronary heart disease without a history of cardiovascular (CV) events or revascularization (isolated angina).

Methods And Results: Of 7,665 patients in a trial comparing long-acting nifedipine with placebo, 2170 (28%) had isolated angina. During a mean follow-up of 4.

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Objective: Few trials report event-adjudication procedures in detail. Using data from the ACTION (A Coronary disease Trial Investigating Outcome with Nifedipine GITS) study, we compared the impact on event-rates of an adjudication strategy based on systematic screening of all reported serious adverse events (SAEs) with a strategy based on investigator diagnoses. The final diagnosis was always made by a critical events committee (CEC) using standard criteria.

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Background/objective: To compare early invasive treatment with continued pharmacological treatment in patients with diabetes mellitus type 2, mild anginal symptoms and documented myocardial ischaemia.

Methods: Patients with type 2 diabetes mellitus and mild anginal symptoms underwent myocardial perfusion scintigraphy (MPS). Patients with myocardial ischaemia were randomly assigned to early invasive or continued pharmacological treatment.

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Background: Atrial fibrillation is common in heart failure, but data regarding beta-blockade in these patients and its ability to prevent new occurrence of atrial fibrillation are scarce.

Methods: Baseline ECGs in MERIT-HF were coded regarding baseline rhythm, and outcome was analyzed in relation to rhythm. Occurrence of atrial fibrillation during follow-up was also analyzed.

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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.

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