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1.
Herzschrittmacherther Elektrophysiol ; 30(3): 298-305, 2019 Sep.
Article in German | MEDLINE | ID: mdl-31410560

ABSTRACT

The specification of standard operating procedures (SOPs) is a basic requirement for a successful implementation of telemonitoring with implanted cardiac devices and with external measuring devices in patients with heart failure, cardiac arrhytmia or increased risk of sudden cardiac death. The following article summarizes the possibilities of telemonitoring from a technical and organizational point of view and descibes basic requirements on SOPs. these basic requirements should be further specified and anchored in the organizational structure of the individual telemonitoring concept. Moreover, they should de understood as a basic guideline fpr the actions of telemonitoring center (TMC) employees.


Subject(s)
Arrhythmias, Cardiac , Heart Failure , Telemedicine , Death, Sudden, Cardiac , Humans
2.
Herzschrittmacherther Elektrophysiol ; 30(3): 287-297, 2019 Sep.
Article in German | MEDLINE | ID: mdl-31278607

ABSTRACT

The position paper of the working group 33/Telemonitoring in the German Society for Cardiology e. V. (DGK) discusses the importance of digital solutions in the German health care system and highlights the application possibilities and potentials of telemonitoring in the treatment of patients with cardiac diseases. In addition to telemonitoring of acute ischaemic diseases, acute coronary syndrome and acute cardiac arrhythmias, telemonitoring of chronic cardiac diseases is discussed. Chronic diseases, such as chronic heart failure, are age-associated and present society with the great challenge of providing high-quality, yet cost-efficient care to an increasing number of patients in the future. Telemonitoring offers an opportunity to meet this challenge. However, the introduction of telemonitoring and the associated changes for patients, doctors and other service providers must be accompanied by measures to ensure the acceptance of telemonitoring and the secure handling of sensitive data as well as the quality of telemonitoring services.


Subject(s)
Cardiology , Heart Failure , Telemedicine , Arrhythmias, Cardiac , Chronic Disease , Humans
3.
Int J Cardiol ; 240: 258-264, 2017 Aug 01.
Article in English | MEDLINE | ID: mdl-28408104

ABSTRACT

BACKGROUND: Ivabradine is indicated to control heart rate in otherwise optimally treated patients with chronic heart failure (CHF) and reduced ejection fraction. However, data on its effectiveness outside clinical trials and longer-term effects are scarce. METHODS: We performed a prospective cohort study involving 249 German resident cardiologists and analyzed the 1-year effectiveness and safety of ivabradine used in CHF outpatients. Data on symptoms, quality of life, and hospitalizations were collected. RESULTS: In total, 767 CHF patients were enrolled to receive ivabradine twice daily, of whom 684 (90%) were still on ivabradine at study end (mean treatment duration 11.2months). The cohort was representative of CHF patients seen in clinical practice in terms of age, risk factor profile, and comorbidities. Concomitant beta-blocker therapy was prescribed in 497 patients (65%). After one year, compared to baseline, heart rate in ivabradine-treated patients was 16bpm lower. This reduction was associated with a significant improvement in NYHA class, and less frequent signs of decompensation (36% to 8%). The proportion of hospitalized patients within 1year decreased from 23% before treatment, to 5% with ivabradine therapy. These improvements in clinical status were accompanied by a reduction in BNP and an increase in LVEF (+5.1% at 1year). Quality of life was significantly improved in all measured dimensions. Adverse drug reactions were noted in 26 patients (3%), and were in line with the known safety profile of ivabradine. CONCLUSIONS: Ivabradine was effective and well-tolerated in CHF patients seen in clinical practice throughout 1year of treatment.


Subject(s)
Benzazepines/administration & dosage , Cardiovascular Agents/administration & dosage , Heart Failure/diagnosis , Heart Failure/drug therapy , Hospitalization/trends , Quality of Life , Aged , Chronic Disease , Cohort Studies , Drug Administration Schedule , Female , Follow-Up Studies , Heart Failure/physiopathology , Humans , Ivabradine , Male , Middle Aged , Prospective Studies , Time Factors , Treatment Outcome
4.
Herzschrittmacherther Elektrophysiol ; 26(2): 129-33, 2015 Jun.
Article in German | MEDLINE | ID: mdl-25939989

ABSTRACT

While the implantable cardioverter-defibrillator (ICD) has been proven to be the best choice for patients with long-term risk for sudden cardiac arrest/sudden cardiac death (SCA/SCD), the question is how to manage patients with only temporary risk, e.g., during the guidelines-recommended waiting period until the decision for an ICD can be made. These patient groups should be monitored around the clock to guarantee a lifesaving shock within a few minutes, if necessary.These conditions can be accomplished by the wearable cardioverter-defibrillator (WCD) in the outpatient sector. The WCD is worn on the skin and consists of four nonadhesive ECG electrodes as well as three defibrillation electrodes-two at the back and one at the front-embedded in a garment. The defibrillation unit is connected via a cord and can be worn over the shoulder or on a belt. Cardiac events can be recorded and retrospectively analyzed by the treating physician.The WCD is a safe and effective measure to terminate potentially lethal ventricular tachycardia and ventricular fibrillation. It may be used early after myocardial infarction with reduced left ventricular ejection fraction (LVEF), as well as for patients with acute heart failure in nonischemic cardiomyopathy with uncertain cause and prognosis. In addition, it may be used for patients waiting for heart transplantation, for patients who cannot be implanted an ICD due to comorbidities, and for patients after explantation of their ICD, e.g., because of infection until reimplantation.One may expect that risk stratification of patients with the WCD will lead to even better selection for ICD use.


Subject(s)
Arrhythmias, Cardiac/diagnosis , Arrhythmias, Cardiac/prevention & control , Death, Sudden, Cardiac/prevention & control , Defibrillators , Electric Countershock/instrumentation , Electrocardiography, Ambulatory/instrumentation , Equipment Design , Equipment Failure Analysis , Evidence-Based Medicine , Humans , Treatment Outcome
5.
Dtsch Med Wochenschr ; 140(5): e48-55, 2015 Mar.
Article in German | MEDLINE | ID: mdl-25734683

ABSTRACT

BACKGROUND: Elevated resting heart rate is associated with increased morbidity and mortality in patients with chronic systolic heart failure (CHF). Lowering of heart rate improves cardiovascular outcome in these patients. Therefore, heart rate reduction is an important element of therapeutic management and consistently reflected in current European guidelines for heart failure. Methods: The INDICATE study was initiated as a multicenter nationwide cross-sectional survey aiming to analyze the current quality of care in outpatients with CHF (documented left ventricular systolic dysfunction) in Germany. 20 consecutive patients were to be included in the survey from February until June 2012 by 793 cardiologic private practices. Detailed documentation of each patient was performed using a standardized questionnaire. RESULTS: CHF was known for more than 6 months in 88 % of the 15 148 included patients. Mean heart rate in the study population was 73 ± 13 min⁻¹. In 42 % of patients the heart rate was ≥ 75 min⁻¹. 86 % were treated with betablockers. However, higher doses of betablockers were not associated with lower resting heart rate. 27 % of patients remained on heart rates ≥ 75 min⁻¹ although receiving at least 50 % of betablocker target dose. CONCLUSION: INDICATE reveals a considerable proportion of outpatients with CHF showing an elevated heart rate despite beta blockade - irrespective of applied dose. These results emphasize the importance of optimizing the pharmacological management of resting heart rate according to guidelines in these patients.


Subject(s)
Angiotensin II Type 1 Receptor Blockers/therapeutic use , Heart Failure, Systolic/diagnosis , Heart Failure, Systolic/drug therapy , Heart Rate/drug effects , Heart Rate/physiology , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/drug therapy , Adolescent , Adrenergic beta-Antagonists/therapeutic use , Adult , Aged , Aged, 80 and over , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Cross-Sectional Studies , Diuretics/therapeutic use , Dose-Response Relationship, Drug , Drug Therapy, Combination , Female , Guideline Adherence , Heart Failure, Systolic/physiopathology , Humans , Male , Middle Aged , Quality Assurance, Health Care , Ventricular Dysfunction, Left/physiopathology , Young Adult
6.
Clin Res Cardiol ; 103(12): 1006-14, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25052361

ABSTRACT

BACKGROUND: Limited data exist regarding baseline characteristics and management of heart failure with reduced ejection fraction (EF) in tertiary care facilities. METHODS: EVITA-HF comprises web-based case report data on demography, comorbidities, diagnostic and therapy measures, quality of life, adverse events and 1-year follow-up of patients hospitalized for chronic heart failure and an ejection fraction of less than 40%. RESULTS: Between February 2009 and June 2011, a total of 1,853 consecutive, hospitalized patients (pts) were included in 16 centers in Germany. Mean age was 70 years, 76% were male. Median EF was 30%, and 63% were in NYHA III/IV. Ischemic cardiomyopathy was present in 56%, history of hypertension in 76%, diabetes in 39%, impaired renal function in 33%, thyroid dysfunction in 12%, and malignoma in 7%. Sixty-eight percent of pts had a non-elective admission. Rhythm was sinus/atrial fibrillation or flutter/pacemaker in 64, 28 and 11%, respectively. Median heart rate amounted to 80 bpm, median blood pressure to 122/74 mmHg. LBBB was present in 26% of non-pacemaker pts. Eighteen percent had an ICD or CRT-D. Medication (admission vs. discharge) consisted of ACEI or ARB in 73 vs. 88%, ß-blocker in 71 vs. 89%, mineral corticosteroid receptor antagonist (MRA) in 32 vs. 57%, diuretics in 68 vs. 83% (p < 0.001 for each). Forty-two percent of pts received a specific treatment procedure beyond pharmacotherapy, of these 48% revascularization, 39% device therapy, 14% electrical cardioversion, 5% ablation procedures, 9 % valvular procedures, 6% iv inotropes, 1.8% IABP or LVAD implantation. At discharge, 33% of survivors had ICD- or CRT-D implants. One-year mortality amounted to 16.8%, and death or rehospitalization to 56%. NYHA class III/IV was found in 30% (p < 0.001 vs. index admission), general health status was improved in 45% and unchanged in 36% of patients. Eighty-five percent of pts took ACEI or ARB, 86% ß-blockers, 47% MRA, and 78% diuretics (p < 0.001 vs. index discharge for all). CONCLUSION: Patients with chronic heart failure and low ejection fraction represent an elderly and multimorbid population. While hospitalized, they experience a significant optimization of prognosis-relevant medication, revascularization and device therapy. After 1 year, mortality is moderate; drug adherence is high and NYHA status favourable. The EVITA-HF registry is able to reflect coherently the real-world management, efforts and follow-up in heart failure pts managed in tertiary care facilities.


Subject(s)
Cardiac Resynchronization Therapy/methods , Heart Failure, Systolic/therapy , Registries , Tertiary Care Centers , Aged , Female , Follow-Up Studies , Germany/epidemiology , Heart Failure, Systolic/mortality , Heart Failure, Systolic/physiopathology , Hospital Mortality/trends , Humans , Male , Middle Aged , Quality of Life , Retrospective Studies , Stroke Volume , Survival Rate/trends , Time Factors , Treatment Outcome
7.
Dtsch Med Wochenschr ; 139(4): 152-8, 2014 Jan.
Article in German | MEDLINE | ID: mdl-24430955

ABSTRACT

Dual antiplatelet therapy is the cornerstone of maintenance medication following invasive treatment of patients with acute coronary syndromes (ST elevation myocardial infarction, non-ST elevation myocardial infarction, unstable angina). Over the last decade, P2Y12 inhibition in addition to low-dose acetylsalicylic acid has been intensively debated. The debate was enriched by the results of the large phase III clinical trials for prasugrel (TRITON) and ticagrelor (PLATO) compared to clopidogrel in patients with acute coronary syndromes. This article summarizes the critical details und subanalyses of both study programmes and highlights on clinical decision making when using the three P2Y12 blockers in acute coronary syndromes. A special focus is on higher risk patients such as those with ST elevation myocardial infarction and those with coexisting diabetes, but also on minimizing relevant bleedings, which are common during more intense platelet inhibition.


Subject(s)
Acute Coronary Syndrome/drug therapy , Platelet Aggregation Inhibitors/therapeutic use , Adenosine/adverse effects , Adenosine/analogs & derivatives , Adenosine/therapeutic use , Angina, Unstable/drug therapy , Aspirin/adverse effects , Aspirin/therapeutic use , Blood Platelets/drug effects , Clopidogrel , Hemorrhage/blood , Hemorrhage/chemically induced , Humans , Myocardial Infarction/drug therapy , Piperazines/adverse effects , Piperazines/therapeutic use , Platelet Aggregation Inhibitors/adverse effects , Platelet Transfusion , Prasugrel Hydrochloride , Purinergic P2Y Receptor Antagonists/adverse effects , Purinergic P2Y Receptor Antagonists/therapeutic use , Thiophenes/adverse effects , Thiophenes/therapeutic use , Ticagrelor , Ticlopidine/adverse effects , Ticlopidine/analogs & derivatives , Ticlopidine/therapeutic use
8.
Eur J Clin Pharmacol ; 69(10): 1747-55, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23743778

ABSTRACT

PURPOSE: Heart failure (CHF) guidelines recommend mineralocorticoid receptor antagonists for all symptomatic patients treated with a combination of ACE inhibitors/angiotensin receptor blockers (ARBs) and beta-blockers. As opposed to both eplerenone trials, patients in RALES (spironolactone) received almost no beta-blockers. Since pharmacological properties differ between eplerenone and spironolactone, the prognostic benefit of spironolactone added to this baseline combination therapy needs clarification. METHODS: We included 4,832 CHF patients with chronic systolic dysfunction from the Norwegian Heart Failure Registry and the heart failure outpatients' clinic of the University of Heidelberg. Propensity scores for spironolactone receipt were calculated for each patient and used for matching to patients without spironolactone. RESULTS: During a total follow-up of 17,869 patient-years, 881 patients (27.0 %) died in the non-spironolactone group and 445 (28.4 %) in the spironolactone group. Spironolactone was not associated with improved survival, neither in the complete sample (HR 0.82; 95 % CI 0.64-1.07; HR 1.03; 95 % CI 0.88-1.20; multivariate and propensity score adjusted respectively), nor in the propensity-matched cohort (HR 0.98; 95 % CI 0.82-1.18). CONCLUSION: In CHF outpatients we were unable to observe an association between the use of spironolactone and improved survival when administered in addition to a combination of ACE/ARB and beta-blockers.


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Heart Failure/drug therapy , Spironolactone/therapeutic use , Stroke Volume/drug effects , Adrenergic beta-Antagonists/administration & dosage , Angiotensin-Converting Enzyme Inhibitors/administration & dosage , Clinical Trials as Topic , Cohort Studies , Databases, Factual , Drug Therapy, Combination , Female , Heart Failure/mortality , Heart Failure/physiopathology , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Norway , Propensity Score , Proportional Hazards Models , Spironolactone/administration & dosage , Treatment Outcome
9.
Clin Res Cardiol ; 101(6): 427-35, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22231645

ABSTRACT

BACKGROUND: High-Mobility-Group Box 1 (HMGB1) has been established as an important mediator of myocardial inflammation and associated with progression of heart failure (HF). The aim of this study was to analyze the prognostic value of systemic HMGB1 levels in HF patients with ischemic and non-ischemic cardiomyopathy. METHODS AND RESULTS: We conducted an analysis (median follow-up time 2.5 years) of HMGB1 plasma concentration in 154 patients with systolic HF and correlated the results with disease severity and prognosis. HMGB1 in HF patients with severe symptoms (NYHA III/IV; 5.35 ng/ml; interquartile range (IQR) = 3.48-8.42 ng/ml) was significantly elevated compared with that in patients with mild symptoms (NYHA I/II; 3.37 ng/ml, IQR = 2.31-5.22 ng/ml, p < 0.0001) and with controls (3.25 ng/ml, IQR = 3.04-3.67 ng/ml, p < 0.0001). HMGB1 levels correlated with other markers of heart failure indicating an association of HMGB1 with disease severity in HF. In a univariate cox regression model for the combined endpoint of death and heart transplantation, HMGB1 proved to be a predictor at cut-off values based on HMGB1 terciles of either 3.4 or 6.1 ng/ml (p = 0.001 and p < 0.0001, respectively). In a multivariate cox regression model, which included NT-proBNP, creatinine, age, NYHA class, white blood cell count, anemia, and age, HMGB1 remained an independent predictor of the combined endpoint (hazard ratio (HR) = 2.48, 95% confidence interval (CI) = 1.06-5.83, p = 0.037 and HR = 2.48, 95% CI = 1.31-4.71, p = 0.005, respectively). CONCLUSION: Our findings demonstrate that HMGB1 plasma concentration is elevated in HF and correlates with disease severity and that is an independent predictor of the combined endpoint death and heart transplantation in HF patients.


Subject(s)
Cardiomyopathies/physiopathology , HMGB1 Protein/blood , Heart Failure, Systolic/physiopathology , Heart Transplantation , Aged , Disease Progression , Female , Follow-Up Studies , Heart Failure, Systolic/mortality , Heart Failure, Systolic/surgery , Humans , Male , Middle Aged , Multivariate Analysis , Myocardial Ischemia/physiopathology , Prognosis , Proportional Hazards Models , Regression Analysis , Retrospective Studies , Risk Factors , Severity of Illness Index
10.
Clin Res Cardiol ; 101(4): 263-72, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22139085

ABSTRACT

AIM: To evaluate the implementation of current pharmacotherapy guidelines of heart failure and to identify factors associated with high pharmacotherapy guideline adherence in heart failure patients. METHODS AND RESULTS: We pooled data from seven studies performed in the context of the German Competence Network Heart Failure selecting patients with chronic systolic heart failure and left ventricular ejection fraction (LVEF) <45% (n = 2,682). The quality of pharmacotherapy was evaluated by calculating the guideline adherence indicator (GAI), which considers three (GAI-3) or five (GAI-5) of the recommended heart failure substance classes and accounts for respective contraindications. GAI-3 was categorized as perfect (GAI = 100%: 71% of the cohort), medium (GAI = 50-99%: 22%), and poor adherence (GAI <50%: 7%). In ordinal regression, the following factors were positively associated with perfect adherence: history of revascularization (odds ratio 1.59, 95% confidence interval 1.27-1.98), prior ICD implantation (2.29, 1.76-2.98), and LV ejection fraction <30% (1.45, 1.19-1.76), whereas age (per 10 years; 0.82, 0.77-0.89), NYHA III/IV (0.15, 0.12-0.18), unknown duration of heart failure (0.69, 0.53-0.89), and antidepressant medication (0.61, 0.42-0.88) were negatively associated with perfect adherence. Better GAI-3 at baseline predicted favorable changes of LV ejection fraction and end-diastolic diameter after 1 year. One-year mortality risk was closely related to GAI-3 in both groups of NYHA functional class I/II (excellent vs. poor GAI-3: 7.2 vs. 14.5%, log rank = 0.004) and class III/IV (13.5 vs. 21.5%, log rank = 0.005). CONCLUSIONS: This large pooled analysis showed that a high level of guideline adherence is achievable in the context of clinical studies. Those receiving and tolerating optimal pharmacotherapy experience a better prognosis. Nevertheless, the implementation of heart failure medication needs further improvement in female and elderly patients, especially those in NYHA functional class >II and patients with LVEF ≥30%.


Subject(s)
Guideline Adherence , Heart Failure, Systolic/drug therapy , Practice Guidelines as Topic , Adult , Age Factors , Aged , Aged, 80 and over , Chronic Disease , Clinical Trials as Topic/methods , Female , Germany , Heart Failure, Systolic/mortality , Heart Failure, Systolic/physiopathology , Humans , Male , Middle Aged , Prognosis , Regression Analysis , Sex Factors , Ventricular Dysfunction, Left/drug therapy , Ventricular Dysfunction, Left/physiopathology , Young Adult
11.
Herz ; 36(7): 608-13, 2011 Oct.
Article in German | MEDLINE | ID: mdl-21912909

ABSTRACT

Heart failure represents a significant clinical and health economic problem. The implementation of new therapeutic strategies favorably affecting the course of the disease remains insufficient in day to day practice. Thus, the use telemedicine offers a central service and information instrument, such that optimized therapy can be achieved by consistent patient surveillance. Predefined vital parameters are automatically transmitted to the telemedicine center; if individually predefined limits are exceeded, therapeutic means are immediately initiated. The service is available to patients 24 h/day throughout the year in case cardio-pulmonary symptoms are experienced. This patient-oriented use of technology should not replace the physician-patient relationship, but improves and supports the participation and self-management of patients.


Subject(s)
Heart Failure, Systolic/therapy , Signal Processing, Computer-Assisted/instrumentation , Telemedicine/trends , Telemetry/instrumentation , Telemetry/trends , Combined Modality Therapy , Heart Failure, Systolic/diagnosis , Heart Failure, Systolic/mortality , Heart Failure, Systolic/physiopathology , Humans , Long-Term Care , Medication Adherence , Monitoring, Physiologic/instrumentation , Monitoring, Physiologic/methods , Patient Readmission/statistics & numerical data , Practice Guidelines as Topic , Self Care , Survival Rate , Treatment Outcome
13.
Eur Respir J ; 37(2): 342-8, 2011 Feb.
Article in English | MEDLINE | ID: mdl-20525718

ABSTRACT

When ventilating large volumes of air during exercise, airway fluid secretion is essential for airway function. Since these are impaired in cystic fibrosis and exercise-induced asthma, it was the aim of this study to determine how exercise affects airway Na(+) and Cl(-) transport and whether changes depend on exercise intensity. Nasal potential was measured in Ringer's solution, with amiloride to block Na(+) transport, and in low chloride-containing isoproterenol to assess Cl(-) channels. Nasal potential was measured at rest and during submaximal and maximal bicycle ergometer exercise in individuals with cystic fibrosis, exercise-induced asthma and controls. At rest, nasal potential was significantly higher in cystic fibroses than in the others. Maximal exercise decreased nasal potentials in cystic fibrosis and controls but not in exercise asthma. Submaximal exercise decreased nasal potentials only in cystic fibrosis. Cl(-) transport was not affected. Our results indicate that nasal potentials and Na(+) transport were decreased by maximal exercise in healthy and cystic fibrosis, whereas submaximal exercise decreased potentials in cystic fibrosis only. Exercise did not affect nasal potentials in asthmatics. Decreased reabsorption during exercise might favour airway fluid secretion during hyperpnoea. This protective effect appears blunted in patients with exercise-induced asthma.


Subject(s)
Asthma, Exercise-Induced/metabolism , Asthma, Exercise-Induced/physiopathology , Cystic Fibrosis/metabolism , Cystic Fibrosis/physiopathology , Exercise/physiology , Sodium/metabolism , Adult , Amiloride/pharmacology , Asthma, Exercise-Induced/drug therapy , Chloride Channels/antagonists & inhibitors , Cystic Fibrosis/drug therapy , Exercise Test/methods , Female , Humans , Ion Transport/drug effects , Ion Transport/physiology , Isoproterenol/pharmacology , Male , Membrane Potentials/drug effects , Nose/drug effects , Nose/physiopathology , Sodium Channel Blockers/pharmacology , Treatment Outcome , Young Adult
14.
Int J Cardiol ; 147(1): 74-8, 2011 Feb 17.
Article in English | MEDLINE | ID: mdl-19765836

ABSTRACT

BACKGROUND: It is unclear whether risk prediction strategies in chronic heart failure (CHF) need to be specific for sex or beta-blockers. We examined this problem and developed and validated the consequent risk models based on 6-minute-walk-test and NT-proBNP. METHODS: The derivation cohort comprised 636 German patients with systolic dysfunction. They were validated against 676 British patients with similar aetiology. ROC-curves for 1-year mortality identified cut-off values separately for specificity (none, sex, beta-blocker, both). Patients were grouped according to number of cut-offs met (group I/II/III - 0/1/2 cut-offs). RESULTS: Widest separation between groups was achieved with sex- and beta-blocker-specific cut offs. In the derivation population, 1-year mortality was 0%, 8%, 31% for group I, II and III, respectively. In the validation population, 1-year rates in the three risk groups were 2%, 7%, 14%, respectively, after application of the same cut-offs. CONCLUSION: Risk stratification for CHF should perhaps take sex and beta-blocker usage into account. We derived and independently validated relevant risk models based on 6-minute-walk-tests and NT-proBNP. Specifying sex and use of beta-blockers identified three distinct sub-groups with widely differing prognosis. In clinical practice, it may be appropriate to tailor the intensity of follow-up and/or the treatment strategy according to the risk-group.


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Exercise Test/standards , Heart Failure/blood , Heart Failure/diagnosis , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Protein Precursors/blood , Sex Characteristics , Adult , Aged , Aged, 80 and over , Cohort Studies , Female , Follow-Up Studies , Heart Failure/drug therapy , Humans , Male , Middle Aged , Proportional Hazards Models , Psychomotor Performance/physiology , Risk Factors , Time Factors , Walking/physiology
15.
Transplant Proc ; 42(10): 4238-42, 2010 Dec.
Article in English | MEDLINE | ID: mdl-21168673

ABSTRACT

BACKGROUND: Modified release tacrolimus (TAC) is a new, once-daily oral formulation of the established immunosuppressive agent TAC. Simplification of regimen has been associated with better adherence. This study evaluated patient adherence, as well as safety and efficacy among chronic stable heart transplantation (HT) patients switched from a conventional twice daily calcineurin inhibitor-based regimen (TAC or cyclosporine A [CsA]) to (once daily) modified release TAC. METHODS: We switched 54 chronic stable patients (41 males and 13 females) from twice daily dosing with conventional TAC or CsA to once daily dosing with modified release TAC. Self-reported adherence was assessed at baseline and at 4 months after the switch using the Basel Assessment of Adherence with Immunosuppressive Medication Scale [BAASIS]), a 4-item validated questionnaire including also a Visual Analogue Scale (VAS). Nonadherence was defined as any self-reported nonadherence on any item. RESULTS: Modified release TAC was discontinued in 4 patients because of diarrhea (n = 1) or gastrointestinal discomfort (n = 3) leaving 50 evaluable patients. Overall nonadherence at baseline for any of the 4 items was 74% versus 38% after 4 months (P = .0001). Thereafter, adherence improved in 28 patients (56.0%), was unchanged in 18 (36.0%), and decreased in 4 subjects (8.0%). The VAS score improved from 82.3% ± 2.6% to 97.5% ± 4.8% (P < .0001). No significant changes were observed after 4 months regarding hematologic, renal, or liver function parameters (all P = NS). CONCLUSIONS: Therapeutic regimens for transplant recipients are often complex, contributing to a high incidence of medication nonadherence. This study in chronic, stable, heart transplantation patients demonstrated a significant improvement in patient adherence after a switch to modified release TAC, which was generally well tolerated.


Subject(s)
Calcineurin Inhibitors , Cyclosporine/administration & dosage , Heart Transplantation , Immunosuppressive Agents/administration & dosage , Patient Compliance , Tacrolimus/administration & dosage , Adult , Cyclosporine/adverse effects , Cyclosporine/pharmacology , Drug Administration Schedule , Female , Humans , Immunosuppressive Agents/adverse effects , Male , Middle Aged , Tacrolimus/adverse effects
16.
Transplant Proc ; 42(10): 4243-6, 2010 Dec.
Article in English | MEDLINE | ID: mdl-21168674

ABSTRACT

BACKGROUND: Proton pump inhibitors (PPIs) are often prescribed for gastrointestinal discomfort after heart transplantation. This study investigated the impact of PPI use on mycophenolic acid (MPA) pharmacokinetics in heart transplant recipients receiving mycophenolate mofetil (MMF) in combination with a calcineurin inhibitor (tacrolimus [TAC]/cyclosporine [CsA]) or mammalian target of rapamycin inhibitor (sirolimus/everolimus). METHODS: Abbreviated MPA areas under the curve (AUCs; 0, 30, and 120 minutes after morning intake) were obtained in 19 patients on a PPI (initial examination) and 1 month after PPI discontinuation (follow-up). Mean patient age was 58.2 ± 8.8 years, and mean time after transplantation was 2.3 ± 4.0 years (range, 0.2-13.0 years). RESULTS: At initial examination mean daily MMF dose was 2.2 ± 0.8 g. MMF dose was kept unchanged for the duration of study (P = ns). Mean predose (C0) MPA serum concentrations were insignificantly lower with PPI comedication (2.5 ± 2.2 mg/L vs 2.8 ± 1.7 mg/L; P = .15). Dose-adjusted abbreviated MPA AUCs (adjusted to morning dose) were significantly lower during PPI therapy (45.2 ± 20.3 vs 65.2 ± 38.8 mg·h/L·g [MMF]; P = .02). CONCLUSIONS: Patients with PPI comedication during MMF therapy show significantly lower exposure to mycophenolic acid determined by dose-adjusted abbreviated MPA AUCs. Although the clinical relevance of this pharmacokinetic interaction was not determined in this study, MPA drug monitoring by limited sampling strategies might be helpful during changes in antacid comedication in patients on MMF.


Subject(s)
Heart Transplantation , Immunosuppressive Agents/administration & dosage , Mycophenolic Acid/analogs & derivatives , Proton Pump Inhibitors/administration & dosage , Aged , Area Under Curve , Drug Therapy, Combination , Female , Humans , Immunosuppressive Agents/pharmacokinetics , Male , Middle Aged , Mycophenolic Acid/administration & dosage , Mycophenolic Acid/pharmacokinetics
17.
Dtsch Med Wochenschr ; 135(13): 633-8, 2010 Apr.
Article in German | MEDLINE | ID: mdl-20333603

ABSTRACT

BACKGROUND AND AIMS: Patients with congestive heart failure represent a significant amount of the total annual cost of the health care system. Because of a lack of studies on the economic health cost of the related health care, including all cost generating factors, we analysed in detail characteristics of these patients and the costs created by their care. METHOD: Data were retrieved from the German Bureau of Health Statistics for the year 2002 relating to congestive heart failure (Code I50) including other factors (e. g. co-morbidities, ambulatory and hospital care and choice of the doctor). The data were from more than 2 million patients, from 350 insurance companies, the Federal Employees Insurance and the German Institute for Medical Informatics and Documentation. A total of 86 193 patients with congestive heart failure had been recorded. RESULTS: More women than men were recorded as having congestive heart failure (66 vs. 34 %). The various health insurance companies paid 2.3 times more for patients with than without congestive heart failure. Nearly three quarters of the cost for these patients (72 %) resulted from in-patient care. Moreover, costs for drugs were three times higher (1073 Euro vs. 366 Euro). CONCLUSIONS: This analysis clearly demonstrates the increased costs incurred for patients with congestive heart failure. It should serve as a reference base for better assessing future innovations, such as telemedicine, for their effects in different sectors of health care.


Subject(s)
Health Care Costs/statistics & numerical data , Heart Failure/economics , National Health Programs/economics , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Ambulatory Care/economics , Comorbidity , Costs and Cost Analysis , Cross-Sectional Studies , Databases, Factual , Drug Costs/statistics & numerical data , Female , Germany , Heart Failure/mortality , Humans , Length of Stay/economics , Male , Middle Aged , Referral and Consultation/economics , Sex Factors , Young Adult
19.
Heart ; 95(10): 825-9, 2009 May.
Article in English | MEDLINE | ID: mdl-19147626

ABSTRACT

BACKGROUND: It is unclear whether age-related increases in N-terminal pro-brain natriuretic peptide (NT-proBNP) represent a normal physiological process-possibly affecting the prognostic power-of NT-proBNP-or reflect age-related subclinical pathological changes. OBJECTIVE: To determine the effect of age on the short-term prognostic value of NT-proBNP in patients with chronic heart failure (CHF). DESIGN: Prospective observational study with inclusion and matching of consecutive patients aged >65 years (mean (SD) 73.1 (6.0) years) to patients <65 years (53.7 (8.6) years) with respect to NT-proBNP, New York Heart Association stage, sex and aetiology of CHF (final n = 443). SETTING: University hospital outpatient departments in the UK and Germany. PATIENTS: Chronic stable heart failure due to systolic left ventricular dysfunction. INTERVENTION: None. OUTCOME MEASURE: All-cause mortality. RESULTS: In both age groups, NT-proBNP was a significant univariate predictor of mortality, and independent of age, sex and other established risk markers. The prognostic information given by NT-proBNP was comparable between the two groups, as reflected by the 1-year mortality of 9% in both groups. The prognostic accuracy of NT-proBNP as judged by the area under the receiver operating characteristics curve for the prediction of 1-year mortality was comparable for elderly and younger patients (0.67 vs 0.71; p = 0.09). CONCLUSION: NT-proBNP reflects disease severity in elderly and younger patients alike. In patients with chronic stable heart failure, the NT-proBNP value carries the same 1-year prognostic information regardless of the age of the patient.


Subject(s)
Heart Failure/mortality , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Ventricular Dysfunction, Left/mortality , Age Factors , Aged , Biomarkers/blood , Chronic Disease , Epidemiologic Methods , Female , Germany , Heart Failure/blood , Humans , Male , Middle Aged , Patient Selection , Prognosis , United Kingdom , Ventricular Dysfunction, Left/blood
20.
Dtsch Med Wochenschr ; 133(40): 2039-44, 2008 Oct.
Article in German | MEDLINE | ID: mdl-18819052

ABSTRACT

The changes in the demographic structure, the increasing multi-morbidity in connection with a rise in the number of chronic illnesses and the absence of an effective coordination of the different levels of health care services with its discontinuous processes and redundancies will increase the economic burdens in the health care system. The latest developments and appropriate logistic premises nowadays offer a realistic basis for implementing telemonitoring as a central service and information tool as well as an instrument controlling the information- and data-flow between patient, hospital and medical practitioner.


Subject(s)
Cardiology/methods , Cardiology/trends , Telemedicine , Arrhythmias, Cardiac/diagnosis , Arrhythmias, Cardiac/therapy , Coronary Disease/diagnosis , Coronary Disease/therapy , Defibrillators, Implantable/standards , Heart Failure/diagnosis , Heart Failure/therapy , Humans , Monitoring, Ambulatory/methods , Monitoring, Ambulatory/standards , Pacemaker, Artificial/standards , Telemedicine/standards , Telemedicine/trends , Telemetry/methods , Telemetry/standards
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