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1.
Eur Heart J ; 25(14): 1214-20, 2004 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15246639

RESUMEN

AIMS: Due to a lack of clinical trials, scientific evidence regarding the management of patients with chronic heart failure and preserved left ventricular function (PLVF) is scarce. The EuroHeart Failure Survey provided information on the characteristics, treatment and outcomes of patients with PLVF as compared to patients with a left ventricular systolic dysfunction (LVSD). METHODS AND RESULTS: We performed a secondary analysis using data from the EuroHeart Failure Survey, only including patients with a measurement of LV function (n = 6806). We selected two groups: patients with LVSD (54%) and patients with a PLVF (46%). Patients with a PLVF were, on average, 4 years older and more often women (55% vs. 29%, respectively, p < 0.001) as compared to LVSD patients, and were more likely to have hypertension (59% vs. 50%, p < 0.001) and atrial fibrillation (25% vs. 23%, p = 0.01). PLVF patients received less cardiovascular medication compared to PLVF patients, with the exception of calcium antagonists. Multivariate analysis revealed that LVSD was an independent predictor for mortality, while no differences in treatment effect on mortality between the two groups was observed. A sensitivity analysis, using different thresholds to separate patients with and without LVSD revealed comparable findings. CONCLUSIONS: In the EuroHeart Failure Survey, a high percentage of heart failure patients had PLVF. Although major clinical differences were seen between the groups, morbidity and mortality was high in both groups.


Asunto(s)
Insuficiencia Cardíaca/mortalidad , Disfunción Ventricular Izquierda/mortalidad , Anciano , Femenino , Encuestas Epidemiológicas , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/fisiopatología , Hospitalización , Humanos , Masculino , Análisis Multivariante , Análisis de Supervivencia , Resultado del Tratamiento , Disfunción Ventricular Izquierda/tratamiento farmacológico , Disfunción Ventricular Izquierda/fisiopatología , Función Ventricular Izquierda/fisiología
2.
Neth Heart J ; 12(12): 548-554, 2004 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25696289
3.
Transplantation ; 75(10): 1704-10, 2003 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-12777860

RESUMEN

BACKGROUND: To define whether immunosuppressive agents that block the interleukin (IL)-2 pathway could prevent activation-induced cell death of activated T cells in the graft, we measured expression of IL-2, IL-2 receptor alpha chain (CD25), IL-15, Fas, and Fas ligand by real time reverse transcription-polymerase chain reaction in cardiac allografts. METHODS: We characterized the phenotype of the infiltrating cells (CD3, CD68, CD25) by immunohistochemistry. The proportion of apoptotic graft-infiltrating cells was determined by TUNEL (terminal deoxynucleotidyl transferase dUTP nick-end labeling) staining. We analyzed endomyocardial biopsy specimens from cardiac allograft recipients who were treated with anti-CD25 monoclonal antibody (mAb) induction therapy (daclizumab) or with matching placebo in combination with cyclosporine, steroids, and mycophenolate mofetil. RESULTS: Treatment with anti-CD25 mAb affected the number of infiltrating CD3 and CD68 cells and the IL-2-regulated apoptotic pathway. During anti-CD25 mAb treatment, significantly lower intragraft IL-2 and CD25 mRNA transcription levels and decreased numbers of CD25+ T cells were found compared with the levels measured in endomyocardial biopsy specimens from placebo-treated patients (5- to 10-fold, P=0.002 and P<0.0001, respectively). In these samples the intragraft mRNA expression levels of IL-15 were also lower (P=0.02). Inhibition of the IL-2 pathway by anti-CD25 mAb therapy was accompanied by reduced mRNA and protein of Fas ligand and not by reduced Fas expression (P=0.001 and P=0.03). TUNEL staining revealed that the proportion of graft-infiltrating cells was lower in the anti-CD25 mAb patient group than the proportion of apoptotic cells in patients receiving placebo (P=0.06). CONCLUSION: Our data suggest that immunosuppressive agents that affect the IL-2 pathway hinder the mechanism of activation-induced cell death by which the immune system eliminates alloreactive cells.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Trasplante de Corazón , Activación de Linfocitos/fisiología , Miocardio/metabolismo , Receptores de Interleucina-2/inmunología , Transducción de Señal/fisiología , Linfocitos T/fisiología , Anticuerpos Monoclonales Humanizados , Apoptosis , Muerte Celular/fisiología , Citocinas/metabolismo , Daclizumab , Proteína Ligando Fas , Citometría de Flujo , Humanos , Inmunoglobulina G/uso terapéutico , Inmunosupresores/uso terapéutico , Subunidad alfa del Receptor de Interleucina-2 , Glicoproteínas de Membrana/metabolismo , Miocardio/patología , Receptores de Citocinas/metabolismo , Receptores de Interleucina/metabolismo , Receptores de Interleucina-2/metabolismo , Linfocitos T/metabolismo , Linfocitos T/patología , Receptor fas/metabolismo
4.
Neth Heart J ; 11(7-8): 289-293, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25696233

RESUMEN

BACKGROUND: Heart transplantation is a unique and life-threatening event followed by role and lifestyle adjustments, feelings of dependency, and fears about infections and rejection of the donor heart. Generic quality of life measures are unlikely to cover aspects pertinent to transplant recipients. The disease-specific measures available are lengthy and not feasible for use in clinical practice. AIM: The purpose of the current study was to develop a brief and reliable disease-specific instrument to measure quality of life in heart transplant patients. STUDY DESIGN: Survey. METHODS: The Rotterdam Quality of Life Questionnaire for Heart Transplant Recipients was developed according to a series of steps that included in-depth interviews with heart transplant patients, transcription of interviews to form a comprehensive item pool, reduction of the item pool through submission to a panel of healthcare professionals and transplant patients, and further reduction of the item pool through construct formation and statistical analyses. From July to September 2000, all surviving patients (n=237) following heart transplantation at the Erasmus Medical Centre, Rotterdam were asked to fill in the 55-item questionnaire, 205 (86%) of whom replied. RESULTS: Twelve of the 55 original items were identified as contributing to overall quality of life in heart transplant patients based on four à priori selected constructs. Submission of the 12 items to a factor analysis confirmed that the four-factor structure accounted for 62% of the variance. The reliability of the four subscales was adequate. Mean scores on subscales reflected light to moderate impairment in quality of life. CONCLUSION: The Rotterdam Quality of Life Questionnaire for Heart Transplant Recipients is a brief disease-specific instrument that measures quality of life in heart transplant patients. Although further studies are required to elaborate on the psychometric properties of the scale, the preliminary reliability of the scale looks promising.

6.
Ned Tijdschr Geneeskd ; 146(8): 373-7, 2002 Feb 23.
Artículo en Holandés | MEDLINE | ID: mdl-11887625

RESUMEN

Left-ventricular assist devices have already gained an international place in the treatment of end-stage heart failure. It is expected that in future they will be increasingly used as a temporary bridging following the recovery from heart failure and to a lesser extent as a bridge to heart transplantation. Three patients with end-stage heart failure, men aged 68, 57 and 49 years, received a left-ventricular assist device (LVAD) as a bridge to transplantation. The device chosen was a Heartmate Vented Electric System (ThermoCardiosystems; Woburn, Massachusetts, US). In this system a pump is implanted under the diaphragm and connected to the apex of the left ventricle and the pars ascendens aortae. The first two patients reached the time of transplantation and used the LVAD for 367 and 416 days respectively. The third patient died after the pump had been implanted, due to progressive right-ventricle failure. The first patient died shortly after the heart transplantation.


Asunto(s)
Cardiopatías/terapia , Corazón Auxiliar , Anciano , Resultado Fatal , Insuficiencia Cardíaca/terapia , Trasplante de Corazón , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Listas de Espera
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