RESUMEN
BACKGROUND/AIMS: Despite availability of a broad spectrum of blood pressure (BP)-lowering drugs many hypertensive patients do not attain BP goals. We aimed to evaluate the influence of home blood pressure monitoring (HBPM) on patient's awareness and attainment of BP goals under antihypertensive treatment with irbesartan alone or in combination with hydro-chlorothiazide. METHODS: In total, 1,268 patients with arterial hypertension were enrolled in the Factors Influencing Results in anti-hypertenSive Treatment (FIRST) study by 348 general practitioners and internal medicine specialists across Switzerland. Patients selected for HBPM received detailed information and training on BP self-management. The study endpoints included patient's awareness and attainment of BP goals, and the efficacy and tolerability of antihypertensive treatment at 3 months. RESULTS: Overall, the mean age was 61±13 years and 616 (49%) were women. The mean systolic/diastolic BP was 161±17/96±11 mmHg, and 239 (19%) patients had diabetes mellitus. 758 (60%) patients were instructed to use HBPM. Both the proportion of patients aware of their BP goals (81% vs. 70%; p< 0.001) and the percentage of patients reaching their BP goal (64% vs. 57%; p=0.028) were higher in those with vs. without HBPM. The mean reduction in systolic/diastolic BP was 23.8/13.2 mmHg. Only 35 (3.0%) patients discontinued antihypertensive therapy. CONCLUSION: In a large Swiss cohort of patients with arterial hypertension, information and training on BP self-measurement and direct involvement of patients by using HBPM led to improvement in BP control. Treatment with irbesartan alone or in combination with hydrochlorothiazide was well tolerated and markedly reduced BP.
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Antihipertensivos/uso terapéutico , Concienciación , Monitoreo Ambulatorio de la Presión Arterial/métodos , Autocuidado/normas , Anciano , Compuestos de Bifenilo/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Quimioterapia Combinada/métodos , Femenino , Objetivos , Humanos , Hidroclorotiazida/uso terapéutico , Irbesartán , Masculino , Persona de Mediana Edad , Suiza , Tetrazoles/uso terapéutico , Resultado del TratamientoAsunto(s)
Insuficiencia de la Válvula Tricúspide , Anciano , Diagnóstico Diferencial , Ecocardiografía , Femenino , Frente/irrigación sanguínea , Frente/patología , Humanos , Venas Yugulares/patología , Postura/fisiología , Flujo Pulsátil/fisiología , Insuficiencia de la Válvula Tricúspide/diagnóstico , Insuficiencia de la Válvula Tricúspide/patología , Insuficiencia de la Válvula Tricúspide/fisiopatologíaRESUMEN
AIMS: Catheter-based renal nerve ablation (RNA) using radiofrequency energy is a novel treatment for drug-resistant essential hypertension. However, the local endothelial and vascular injury induced by RNA has not been characterized, although this importantly determines the long-term safety of the procedure. Optical coherence tomography (OCT) enables in vivo visualization of morphologic features with a high resolution of 10-15 µm. The objective of this study was to assess the morphological features of the endothelial and vascular injury induced by RNA using OCT. METHODS AND RESULTS: In a prospective observational study, 32 renal arteries of patients with treatment-resistant hypertension underwent OCT before and after RNA. All pre- and post-procedural OCT pullbacks were evaluated regarding vascular changes such as vasospasm, oedema (notches), dissection, and thrombus formation. Thirty-two renal arteries were evaluated, in which automatic pullbacks were obtained before and after RNA. Vasospasm was observed more often after RNA then before the procedure (0 vs. 42%, P < 0.001). A significant decrease in mean renal artery diameter after RNA was documented both with the EnligHTN (4.69 ± 0.73 vs. 4.21 ± 0.87 mm; P < 0.001) and with the Simplicity catheter (5.04 ± 0.66 vs. 4.57 ± 0.88 mm; P < 0.001). Endothelial-intimal oedema was noted in 96% of cases after RNA. The presence of thrombus formations was significantly higher after the RNA then before ablation (67 vs. 18%, P < 0.001). There was one evidence of arterial dissection after RNA with the Simplicity catheter, while endothelial and intimal disruptions were noted in two patients with the EnligHTN catheter. CONCLUSION: Here we show that diffuse renal artery constriction and local tissue damage at the ablation site with oedema and thrombus formation occur after RNA and that OCT visualizes vascular lesions not apparent on angiography. This suggests that dual antiplatelet therapy may be required during RNA.
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Ablación por Catéter/efectos adversos , Hipertensión/cirugía , Arteria Renal/lesiones , Simpatectomía/efectos adversos , Antihipertensivos/uso terapéutico , Ablación por Catéter/instrumentación , Resistencia a Medicamentos , Edema/etiología , Electrodos/efectos adversos , Femenino , Humanos , Hipertensión/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Espasmo/etiología , Simpatectomía/instrumentación , Trombosis/etiología , Tomografía de Coherencia Óptica , Resultado del Tratamiento , Enfermedades Vasculares/etiologíaRESUMEN
AIMS: Pericardial effusion (PE) is a common finding in cardiac patients with chronic heart failure. The prognostic relevance of a small, haemodynamically non-compromising PE in such patients, however, remains to be determined. METHODS AND RESULTS: All patients referred to our heart failure clinic and having a baseline echocardiography and follow-up clinical visits were included. Patients with a haemodynamically relevant PE, acute myo-/pericarditis, systemic sclerosis, rheumatoid arthritis, heart transplantation, heart surgery within the last 6 months or malignancies within the last 3 years were excluded. Patients with or without a haemodynamically irrelevant PE were compared regarding all-cause mortality as the primary and cardiovascular death or need for heart transplantation as secondary outcomes. A total of 897 patients (824 patients in the control vs. 73 patients in the PE group) were included. In the PE group, left ventricular ejection fraction (LVEF) was lower [31%, interquartile range (IQR): 18.0-45.0] than in controls (34%, IQR: 25.0-47.0; P = 0.04), while the end-systolic diameters of the left ventricle and the left atrium were larger (P = 0.01 and P = 0.001, respectively). Similarly, in patients with PE, the right ventricle (RV) systolic function was lower (P < 0.005 for both the fractional area change and the tricuspid annulus movement), the dimensions of RV and right atrium (RA) were larger (P < 0.05 for RV and P < 0.01 for RA), and the degree of tricuspid regurgitation was higher (P < 0.0001). Furthermore, in the PE group, the heart rate was higher (P < 0.001) and the leukocyte count as well as CRP values were increased (P = 0.004 and P < 0.0001, respectively); beta-blocker use was less frequent (P = 0.04), while spironolactone use was more frequent (P = 0.03). The overall survival was reduced in the PE group compared with controls (P = 0.02). Patients with PE were more likely to suffer cardiovascular death (1-year estimated event-free survival: 86 ± 5 vs. 95 ± 1%; P = 0.01) and to require heart transplantation (1-year estimated event-free survival: 88 ± 4 vs. 95 ± 1%; P = 0.009). A multivariate Cox proportional hazard model revealed the following independent predictors of mortality: (a) PE (P = 0.04, hazard ratio (HR): 1.95, 95% confidence interval (CI): 1.0-3.7), (b) age (P = 0.04, HR: 1.02, 95% CI: 1.0-1.04) and (c) LVEF <35% (P = 0.03, HR: 1.7, 95% CI: 1.1-2.8). CONCLUSION: In chronic heart failure, even minor PEs are associated with an increased risk of all-cause mortality, cardiac death, and need for transplantation.
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Insuficiencia Cardíaca/mortalidad , Derrame Pericárdico/mortalidad , Estudios de Casos y Controles , Enfermedad Crónica , Ecocardiografía , Femenino , Insuficiencia Cardíaca/fisiopatología , Frecuencia Cardíaca/fisiología , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Miocarditis/mortalidad , Miocarditis/fisiopatología , Derrame Pericárdico/fisiopatología , Pronóstico , Modelos de Riesgos Proporcionales , Volumen Sistólico/fisiología , Disfunción Ventricular Izquierda/mortalidad , Disfunción Ventricular Izquierda/fisiopatología , Disfunción Ventricular Derecha/mortalidad , Disfunción Ventricular Derecha/fisiopatologíaRESUMEN
BACKGROUND: MicroRNAs are key regulators of angiogenic processes. Administration of angiogenic early outgrowth cells (EOCs) or CD34(+) cells has been suggested to improve cardiac function after ischemic injury, in particular by promoting neovascularization. The present study therefore examines regulation of angiomiRs, microRNAs involved in angiogenesis, in angiogenic EOCs and circulating CD34(+) cells from patients with chronic heart failure (CHF) and the role for their cardiac repair capacity. METHODS AND RESULTS: Angiogenic EOCs and CD34(+) cells were isolated from patients with CHF caused by ischemic cardiomyopathy (n=45) and healthy subjects (n=35). In flow cytometry analyses, angiogenic EOCs were largely myeloid and positive for alternatively activated M2 macrophage markers. In vivo cardiac neovascularization and functional repair capacity were examined after transplantation into nude mice with myocardial infarction. Cardiac transplantation of angiogenic EOCs from healthy subjects markedly increased neovascularization and improved cardiac function, whereas no such effect was observed after transplantation of angiogenic EOCs from patients with CHF. Real-time polymerase chain reaction analysis of 14 candidate angiomiRs, expressed in angiogenic EOCs, revealed a pronounced loss of angiomiR-126 and -130a in angiogenic EOCs from patients with CHF that was also observed in circulating CD34(+) cells. Anti-miR-126 transfection markedly impaired the capacity of angiogenic EOCs from healthy subjects to improve cardiac function. miR-126 mimic transfection increased the capacity of angiogenic EOCs from patients with CHF to improve cardiac neovascularization and function. CONCLUSIONS: The present study reveals a loss of angiomiR-126 and -130a in angiogenic EOCs and circulating CD34(+) cells from patients with CHF. Reduced miR-126 expression was identified as a novel mechanism limiting their capacity to improve cardiac neovascularization and function that can be targeted by miR-126 mimic transfection.
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Insuficiencia Cardíaca/fisiopatología , Corazón/fisiopatología , MicroARNs/fisiología , Neovascularización Fisiológica , Proteínas Adaptadoras Transductoras de Señales , Animales , Antígenos CD34/análisis , Enfermedad Crónica , Femenino , Proteínas de Homeodominio/fisiología , Humanos , Péptidos y Proteínas de Señalización Intracelular/fisiología , Masculino , Proteínas de la Membrana/fisiología , Ratones , MicroARNs/análisis , Persona de Mediana Edad , Isquemia Miocárdica/complicaciones , Isquemia Miocárdica/fisiopatologíaRESUMEN
BACKGROUND: Although newer immunosuppressive agents, such as mTOR (mammalian target of rapamycin) inhibitors, have lowered the occurrence of malignancies after transplantation, cancer is still a leading cause of death late after heart transplantation. Statins may have an impact on clinical outcomes beyond their lipid-lowering effects. The aim of the present study was to delineate whether statin therapy has an impact on cancer risk and total mortality after heart transplantation. METHODS AND RESULTS: A total of 255 patients who underwent heart transplantation at the University Hospital Zurich between 1985 and 2007 and survived the first year were included in the present study. The primary outcome measure was the occurrence of any malignancy; the secondary end point was overall survival. During follow-up, a malignancy was diagnosed in 108 patients (42%). The cumulative incidence of tumors 8 years after transplantation was reduced in patients receiving a statin (34% versus 13%; 95% confidence interval, 0.25-0.43 versus 0.07-0.18; P<0.003). Statin use was associated with improved cancer-free and overall survival (both P<0.0001). A Cox regression model that analyzed the time to tumor formation with or without statin therapy, adjusted for age, male sex, type of cardiomyopathy, and immunosuppressive therapy (including switch to mTOR inhibitors or tacrolimus), demonstrated a superior survival in the statin group. Statins reduced the hazard of occurrence of any malignancy by 67% (hazard ratio, 0.33; 95% confidence interval, 0.21-0.51; P<0.0001). CONCLUSIONS: Although it is not possible to adjust for all potential confounders because of the very long follow-up period, this registry suggests that statin use is associated with improved cancer-free and overall survival after cardiac transplantation. These data will need to be confirmed in a prospective trial.
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Trasplante de Corazón , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Neoplasias/epidemiología , Complicaciones Posoperatorias/epidemiología , Adulto , Femenino , Estudios de Seguimiento , Rechazo de Injerto/inmunología , Rechazo de Injerto/prevención & control , Trasplante de Corazón/inmunología , Trasplante de Corazón/mortalidad , Humanos , Inmunosupresores/uso terapéutico , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Tacrolimus/uso terapéuticoRESUMEN
In heart transplantation, the clinical significance of pretransplant donor-specific antibodies (DSA) detected by solid phase assay (SPA), which is more sensitive than the conventional complement-dependent cytotoxicity (CDC) assays, is unclear. The aim was to evaluate SPA performed on pretransplant sera for survival after heart transplantation. Pretransplant sera of 272 heart transplant recipients were screened for anti-HLA antibodies using CDC and SPA. For determination of pretransplant DSA, a single-antigen bead assay was performed. The presence of anti-HLA antibodies was correlated with survival. Secondary outcome parameters were acute cellular rejection, graft coronary vasculopathy and ejection fraction. In Kaplan-Meier analysis, SPA-screening did not predict survival (P = 0.494), this in contrast to CDC screening (P = 0.002). However, the presence of pretransplant DSA against HLA class I was associated with decreased short-term survival compared to non-DSA (P = 0.038). ROC curve analysis showed a sensitivity of 76% and specificity of 73% at a cutoff of 2000 MFI. In contrast, the presence of anti-HLA antibodies had no influence on long-term survival, rejection incidence, and graft function. Thus, detection of DSA class I in pretransplant serum is a strong predictor of short-term, but not long-term survival and may help in the early management of heart transplant patients.
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Trasplante de Corazón , Antígenos de Histocompatibilidad Clase I/inmunología , Isoanticuerpos/inmunología , Donantes de Tejidos , Inmunología del Trasplante , Supervivencia de Injerto/inmunología , Humanos , Isoanticuerpos/análisis , Estimación de Kaplan-Meier , Sensibilidad y EspecificidadRESUMEN
BACKGROUND: There is little knowledge about the effect of dyslipidaemia on the outcome after lung transplantation. Thus, the aim of this retrospective single centre study was to analyse the impact of the plasma lipid profile on mortality in lung transplant recipients. From January 2000 to December 2008 the charts of 172 consecutive lung transplantation recipients were analysed. At baseline and after one year lipid profiles were routinely collected. During the follow-up major cardiovascular events (MCE; beginning of dialysis, cerebrovascular insult or myocardial infarction) were recorded. The follow-up period ended December 2010. FINDINGS: Over all total cholesterol (4.3 ± 1.6 vs. 5.4 ± 1.3 mmol/l, p < 0.0001), triglycerides (1.2 ± 0.7 vs. 2.4 ± 1.3 mmol/l, p < 0.0001), HDL (1.5 ± 0.6 vs. 1.7 ± 0.6 mmol/l, p = 0.003) and TC/HDL ratio (3.0 ± 1.0 vs. 3.6 ± 1.2, p = 0.002) increased significantly after 1 year.During the observational period 6.9% (10 patients) suffered a major cardiac event. In univariate analysis MCE was associated with baseline TC: on average the event-group had a 33% higher baseline TC (5.6 vs. 4.2 mmol/l, OR 1.6, CI 1.1 - 2.2, p = 0.02). The total mortality in the observational period was 25% (36 patients overall). In univariate analysis mortality was associated with increased TC/HDL ratio. The non-survivors had on average a 22% higher baseline TC/HDL ratio (3.6 vs. 2.8, HR 2.8, CI 1.2 - 3.5, p = 0.001). There was no association between mortality and TC (p = 0.33), triglycerides (p = 0.34), HDL (p = 0.78) and creatinine (p = 0.73). In a multivariate model the hazard ratio was 1.5 (1.2 - 1.9, p = 0.001) per increase of 0.4 TC/HDL ratio. CONCLUSIONS: This study shows that the total cholesterol before transplantation is associated with the incidence of MCE and the cholesterol/HDL ratio with mortality in lung transplanted recipients.
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Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/mortalidad , Colesterol/sangre , Dislipidemias/sangre , Trasplante de Pulmón/mortalidad , Adulto , Anciano , Enfermedades Cardiovasculares/etiología , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Creatinina/sangre , Dislipidemias/complicaciones , Femenino , Estudios de Seguimiento , Humanos , Lipoproteínas HDL/sangre , Trasplante de Pulmón/efectos adversos , Masculino , Persona de Mediana Edad , Triglicéridos/sangreRESUMEN
The prevalence of complicated hypertension is increasing in America and Europe. This survey was undertaken to assess the status quo of primary care management of hypertension in patients with the high-risk comorbid diseases metabolic syndrome (MetS) and/or type 2 diabetes mellitus (non-insulin depending diabetes mellitus (NIDDM)). Data of anti-hypertensive treatment of 4594 Swiss patients were collected over 1 week. We identified patients with exclusively NIDDM (N = 95), MetS (N = 168), and both (N = 768). Target blood pressure (TBP) attainment, frequency of prescribed substance-classes, and correlations to comorbidities/end-organ damages were assessed. In addition, we analyzed the prescription of unfavorable beta-blockers (BB) and high-dose diuretics (Ds). In NIDDM, Ds (61%), angiotensin receptor blockers (ARBs) (40%), and angiotensin converting enzyme inhibitors (ACEIs) (31%) were mostly prescribed, while in MetS, drugs prevalence was Ds (68%), ARBs (48%), and BB (41%). Polypharmacy in patients with MetS correlated with body mass index; older patients (>65 years) were more likely to receive dual-free combinations. TBP was attained in 25.2% of NIDDM and in 28.7% of MetS patients. In general, low-dose Ds use was more prevalent in NIDDM and MetS, however, overall, Ds were used excessively (NIDDM: 61%, MetS: 68%), especially in single-pill combination. Patients with MetS were more likely to receive ARBs, ACEIs, CCBs, and low-dose Ds than BBs and/or high-dose Ds. Physicians recognize DM and MetS as high-risk patients, but select inappropriate drugs. Because the majority of patients may have both, MetS and NIDDM, there is an unmet need to define TBP for this specific population considering the increased risk in comparison to patients with MetS or NIDDM alone.
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Diabetes Mellitus Tipo 2/tratamiento farmacológico , Hipertensión/tratamiento farmacológico , Síndrome Metabólico/tratamiento farmacológico , Antagonistas Adrenérgicos beta/administración & dosificación , Anciano , Anciano de 80 o más Años , Antihipertensivos/administración & dosificación , Antihipertensivos/clasificación , Antihipertensivos/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Estudios de Casos y Controles , Comorbilidad , Recolección de Datos , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/fisiopatología , Diuréticos/administración & dosificación , Quimioterapia Combinada , Femenino , Humanos , Hipertensión/epidemiología , Hipertensión/fisiopatología , Masculino , Síndrome Metabólico/epidemiología , Síndrome Metabólico/fisiopatología , Persona de Mediana Edad , Atención Primaria de Salud , Suiza/epidemiologíaRESUMEN
AIMS: Flavanol-rich chocolate (FRC) is beneficial for vascular and platelet function by increasing nitric oxide bioavailability and decreasing oxidative stress. Congestive heart failure (CHF) is characterized by impaired endothelial and increased platelet reactivity. As statins are ineffective in CHF, alternative therapies are a clinical need. We therefore investigated whether FRC might improve cardiovascular function in patients with CHF. METHODS AND RESULTS: Twenty patients with CHF were enrolled in a double-blind, randomized placebo-controlled trial, comparing the effect of commercially available FRC with cocoa-liquor-free control chocolate (CC) on endothelial and platelet function in the short term (2 h after ingestion of a chocolate bar) and long term (4 weeks, two chocolate bars/day). Endothelial function was assessed non-invasively by flow-mediated vasodilatation of the brachial artery. Flow-mediated vasodilatation significantly improved from 4.98 ± 1.95 to 5.98 ± 2.32% (P = 0.045 and 0.02 for between-group changes) 2h after intake of FRC to 6.86 ± 1.76% after 4 weeks of daily intake (P = 0.03 and 0.004 for between groups). No effect on endothelial-independent vasodilatation was observed. Platelet adhesion significantly decreased from 3.9 ± 1.3 to 3.0 ± 1.3% (P = 0.03 and 0.05 for between groups) 2 h after FRC, an effect that was not sustained at 2 and 4 weeks. Cocoa-liquor-free CC had no effect, either on endothelial function or on platelet function. Blood pressure and heart rate did not change in either group. CONCLUSION: Flavanol-rich chocolate acutely improves vascular function in patients with CHF. A sustained effect was seen after daily consumption over a 4-week period, even after 12 h abstinence. These beneficial effects were paralleled by an inhibition of platelet function in the presence of FRC only.
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Cacao/fisiología , Dulces , Flavonoles/farmacología , Insuficiencia Cardíaca/fisiopatología , Índice Tobillo Braquial , Barorreflejo/efectos de los fármacos , Biomarcadores/metabolismo , Presión Sanguínea/efectos de los fármacos , Método Doble Ciego , Endotelio Vascular/fisiología , Femenino , Flavonoles/sangre , Frecuencia Cardíaca/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Estrés Oxidativo/efectos de los fármacos , Adhesividad Plaquetaria/efectos de los fármacos , Polifenoles/sangre , Vasodilatación/efectos de los fármacosRESUMEN
AIMS: Extracts from pine tree bark containing a variety of flavonoids have been used in traditional medicine. Pycnogenol is a proprietary bark extract of the French maritime pine tree (Pinus pinaster ssp. atlantica) that exerts antioxidative, anti-inflammatory, and anti-platelet effects. However, the effects of Pycnogenol on endothelial dysfunction, a precursor of atherosclerosis and cardiovascular events, remain still elusive. METHODS AND RESULTS: Twenty-three patients with coronary artery disease (CAD) completed this randomized, double-blind, placebo-controlled cross-over study. Patients received Pycnogenol (200 mg/day) for 8 weeks followed by placebo or vice versa on top of standard cardiovascular therapy. Between the two treatment periods, a 2-week washout period was scheduled. At baseline and after each treatment period, endothelial function, non-invasively assessed by flow-mediated dilatation (FMD) of the brachial artery using high-resolution ultrasound, biomarkers of oxidative stress and inflammation, platelet adhesion, and 24 h blood pressure monitoring were evaluated. In CAD patients, Pycnogenol treatment was associated with an improvement of FMD from 5.3 ± 2.6 to 7.0 ± 3.1 (P < 0.0001), while no change was observed with placebo (5.4 ± 2.4 to 4.7 ± 2.0; P = 0.051). This difference between study groups was significant [estimated treatment effect 2.75; 95% confidence interval (CI): 1.75, 3.75, P < 0.0001]. 15-F(2t)-Isoprostane, an index of oxidative stress, significantly decreased from 0.71 ± 0.09 to 0.66 ± 0.13 after Pycnogenol treatment, while no change was observed in the placebo group (mean difference 0.06 pg/mL with an associated 95% CI (0.01, 0.11), P = 0.012]. Inflammation markers, platelet adhesion, and blood pressure did not change after treatment with Pycnogenol or placebo. CONCLUSION: This study provides the first evidence that the antioxidant Pycnogenol improves endothelial function in patients with CAD by reducing oxidative stress.
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Antioxidantes/administración & dosificación , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Endotelio Vascular/efectos de los fármacos , Flavonoides/administración & dosificación , Vasodilatación/efectos de los fármacos , Adulto , Anciano , Antiinflamatorios/administración & dosificación , Antihipertensivos/administración & dosificación , Arginina/análogos & derivados , Arginina/metabolismo , Biomarcadores/metabolismo , Plaquetas/efectos de los fármacos , Presión Sanguínea/efectos de los fármacos , Proteína C-Reactiva/metabolismo , Enfermedad de la Arteria Coronaria/fisiopatología , Estudios Cruzados , Método Doble Ciego , Endotelina-1/efectos de los fármacos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estrés Oxidativo/efectos de los fármacos , Extractos Vegetales , Estudios Prospectivos , Resistencia al Corte , Resultado del Tratamiento , Vasodilatadores/administración & dosificaciónRESUMEN
BACKGROUND: Martorell hypertensive ischemic leg ulcer (Martorell ulcer) is characterized by distinct alterations in the arteriolar wall of subcutaneous vessels, leading to progressive narrowing of the vascular lumen and increase of vascular resistance. These changes are similar to the alterations observed in pulmonary arterioles in patients with chronic pulmonary hypertension (PH). This study was aimed to assess an association between the two disorders. METHODS: In this case-control study, 14 patients with Martorell ulcer were clinically assessed for the presence of pulmonary hypertension using transthoracic Doppler echocardiography. Data from patients were compared to 28 matched hypertensive controls. RESULTS: Systolic pulmonary arterial pressure (sPAP) in patients with Martorell ulcer was significantly higher than in the control group (33.8 ± 16.9 vs 25.3 ± 6.5 mmHg, p = 0.023); the prevalence of pulmonary hypertension was 31% (5/14) in patients and 7% (2/28) in controls (p = 0.031). No differences were seen in left heart size and function between patients and controls. CONCLUSION: This study provides first evidence that subcutaneous arteriolosclerosis, the hallmark of Martorell ulcer, is associated with PH. These findings suggest that patients with Martorell leg ulcer might be at significant risk to develop elevated pulmonary arterial pressure. Patients with leg ulcers who present with dyspnea should be evaluated by echocardiography for the presence of pulmonary hypertension.
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Aterosclerosis/epidemiología , Hipertensión Pulmonar/epidemiología , Úlcera de la Pierna/epidemiología , Anciano , Anciano de 80 o más Años , Aterosclerosis/complicaciones , Aterosclerosis/diagnóstico por imagen , Estudios de Casos y Controles , Ecocardiografía Doppler , Femenino , Humanos , Hipertensión Pulmonar/complicaciones , Hipertensión Pulmonar/diagnóstico por imagen , Úlcera de la Pierna/complicaciones , Úlcera de la Pierna/diagnóstico por imagen , Úlcera de la Pierna/patología , Masculino , Estudios RetrospectivosRESUMEN
The consumption of a high amount of fruits and vegetables was found to be associated with a lower risk of coronary heart disease and stroke. Epidemiologically, a similar relationship has been found with cocoa, a naturally polyphenol-rich food. Obviously, double blind randomized studies are difficult to perform with cocoa and chocolate, respectively. However, intervention studies strongly suggest that cocoa has several beneficial effects on cardiovascular health, including the lowering of blood pressure, the improvement of vascular function and glucose metabolism, and the reduction of platelet aggregation and adhesion. Several potential mechanisms through which cocoa might exert its positive effects have been proposed, among them activation of nitric oxide synthase, increased bioavailability of nitric oxide as well as antioxidant, and anti-inflammatory properties. It is the aim of this review to summarize the findings of cocoa and chocolate on blood pressure and vascular function.
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Presión Sanguínea/efectos de los fármacos , Cacao , Sistema Cardiovascular/efectos de los fármacos , Endotelio Vascular/efectos de los fármacos , Antioxidantes/farmacología , Enfermedad de la Arteria Coronaria/prevención & control , Flavonoides/farmacología , Humanos , Óxido Nítrico , Polifenoles/farmacología , Accidente Cerebrovascular/prevención & controlRESUMEN
Selective and non-selective non-steroidal anti-inflammatory drugs (NSAIDs) as well as acetaminophen belong to the most widely prescribed therapeutic agents worldwide. Their efficacy in pain relief notwithstanding, the use of NSAIDs is associated with an increased cardiovascular risk, which can be partly attributed to their blood pressure raising potential. Adequately powered placebo-controlled trials specifically evaluating the cardiovascular safety of NSAIDs vs. selective COX inhibitors are currently underway. This review summarizes the current knowledge on the cardiovascular effects of NSAIDs and acetaminophen, and their potential clinical consequences.
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Acetaminofén/efectos adversos , Antiinflamatorios no Esteroideos/efectos adversos , Hipertensión/patología , Acetaminofén/farmacología , Analgésicos/efectos adversos , Analgésicos/farmacología , Antiinflamatorios no Esteroideos/farmacología , Aspirina/efectos adversos , Aspirina/farmacología , Presión Sanguínea/efectos de los fármacos , Inhibidores de la Ciclooxigenasa 2/efectos adversos , Inhibidores de la Ciclooxigenasa 2/farmacología , Humanos , Dolor/tratamiento farmacológico , RiesgoRESUMEN
BACKGROUND: There are only a few trials for the very elderly population (>79 years). No consensus, which blood pressure (BP) goals and substances should be applied, has been found yet. This survey was undertaken to investigate how octogenarians are treated and attain BP targets in the Swiss primary care. METHODS: Data from 4594 hypertensive patients were collected within 7 days. Eight hundred and seventy-seven patients met the requirement to be >79 years. We assessed substances/combinations and investigated pulse pressure and target blood pressure attainment (TBPA) using three different recommendations [Canadian Hypertension Education Program (CHEP), Swiss Society of Hypertension (SSH), European Society of Hypertension-European Society of Cardiology (ESH-ESC)]. Secondarily, we compared TBPA attained by angiotensin-converting enzyme inhibitor (ACEI)/diuretic (D), angiotensin receptor blocker (ARB)/D and calcium channel blocker (CCB)/D with any other dual therapy and investigated whether Ds/beta-blockers (BBs) or Ds/renin angiotensin-converting enzyme inhibitors (RAAS-Is) lead to higher TBPA. Finally, we assessed the impact of drug administration, practical work experience, location and specialization of GPs on TBPA. RESULTS: Octogenarians attained target blood pressure (TBP) between 44% (ESH-ESC) and 74% (SSH). Optimal/normal BP was reached in 22.8% of patients. Pulse pressure <65 mmHg was shown in 66.4% of patients. Monotherapy was most commonly applied followed by dual single-pill combination with ARB/D (46.5%) or ACEI/D (36.0%). No benefit in TBPA was found comparing a RAASI/D and CCB/D treatment with any other dual combination. There was also no difference between BB/D and RAAS-I/D combination therapy and between single-pill combination and dual free combinations. CONCLUSIONS: GPs adhere to the use of substances proven in outcome trials and attain high TBP. No difference in meeting BP goals could be found using different drug classes. There is an unmet need to harmonize recommendations and to add additional information for the treatment of octogenarians.
Asunto(s)
Objetivos , Hipertensión/tratamiento farmacológico , Guías de Práctica Clínica como Asunto , Anciano de 80 o más Años , Determinación de la Presión Sanguínea , Femenino , Adhesión a Directriz , Encuestas de Atención de la Salud , Humanos , Masculino , Atención Primaria de Salud , Valores de Referencia , Suiza , Resultado del TratamientoRESUMEN
INTRODUCTION: The control of high blood pressure (BP) remains insufficient in developed as well as in developing countries. We conducted a cross-sectional survey to investigate the management of hypertension and the achievement of target BPs in a large population of hypertensive patients treated by Swiss primary care physicians. METHODS: Data from 4594 hypertensive patients were collected and assessed for demographic data, mode of treatment and BP achievements for the overall population and for high-risk patients such as diabetics and patients with impaired renal function (CKD patients). Furthermore, we analysed the achieved BP in patients receiving single pill combinations or dual free combinations for the three most commonly prescribed substances. RESULTS: In this large patient population, 84% of patients were receiving an antihypertensive treatment of which 54% showed BP control (< 140/90 mmHg or < 130/80 mmHg for diabetics and patients with CKD). Considering the higher BP target in the elderly, 60.6% of treated patients were on target. In contrast, 28.8% of treated diabetics and 29.7% of patients with impaired renal function met BP goals. Diuretics and blockers of the renin-angiotensin system were the most commonly prescribed substances. High-risk patients and patients at advanced age (≥ 80 years) received dual free combination more frequently than younger patients. The use of diuretics was particularly high because of the prescription of single pill formulations. Differences in the pattern of drug prescription were found according to the linguistic areas. CONCLUSION: The control of hypertension in the Swiss hypertensive population is relatively high but still insufficient particularly among high cardiovascular risk patients such as diabetics and patients with impaired renal function. A further improvement of BP control could perhaps be achieved with a greater use of single pill combinations particularly in patients with complicated hypertension.
Asunto(s)
Antihipertensivos/uso terapéutico , Hipertensión/tratamiento farmacológico , Pautas de la Práctica en Medicina/estadística & datos numéricos , Atención Primaria de Salud/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Presión Sanguínea/efectos de los fármacos , Presión Sanguínea/fisiología , Estudios Transversales , Combinación de Medicamentos , Quimioterapia Combinada , Utilización de Medicamentos , Femenino , Humanos , Hipertensión/epidemiología , Hipertensión/fisiopatología , Masculino , Persona de Mediana Edad , Factores de Riesgo , Estadísticas no Paramétricas , Suiza/epidemiologíaRESUMEN
BACKGROUND: Because traditional nonsteroidal antiinflammatory drugs are associated with increased risk for acute cardiovascular events, current guidelines recommend acetaminophen as the first-line analgesic of choice on the assumption of its greater cardiovascular safety. Data from randomized clinical trials prospectively addressing cardiovascular safety of acetaminophen, however, are still lacking, particularly in patients at increased cardiovascular risk. Hence, the aim of this study was to evaluate the safety of acetaminophen in patients with coronary artery disease. METHODS AND RESULTS: The 33 patients with coronary artery disease included in this randomized, double-blind, placebo-controlled, crossover study received acetaminophen (1 g TID) on top of standard cardiovascular therapy for 2 weeks. Ambulatory blood pressure, heart rate, endothelium-dependent and -independent vasodilatation, platelet function, endothelial progenitor cells, markers of the renin-angiotensin system, inflammation, and oxidative stress were determined at baseline and after each treatment period. Treatment with acetaminophen resulted in a significant increase in mean systolic (from 122.4±11.9 to 125.3±12.0 mm Hg P=0.02 versus placebo) and diastolic (from 73.2±6.9 to 75.4±7.9 mm Hg P=0.02 versus placebo) ambulatory blood pressures. On the other hand, heart rate, endothelial function, early endothelial progenitor cells, and platelet function did not change. CONCLUSIONS: This study demonstrates for the first time that acetaminophen induces a significant increase in ambulatory blood pressure in patients with coronary artery disease. Thus, the use of acetaminophen should be evaluated as rigorously as traditional nonsteroidal antiinflammatory drugs and cyclooxygenase-2 inhibitors, particularly in patients at increased cardiovascular risk. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00534651.
Asunto(s)
Acetaminofén/efectos adversos , Acetaminofén/farmacología , Antiinflamatorios no Esteroideos/efectos adversos , Antiinflamatorios no Esteroideos/farmacología , Presión Sanguínea/efectos de los fármacos , Enfermedad de la Arteria Coronaria/fisiopatología , Hipertensión/inducido químicamente , Anciano , Presión Sanguínea/fisiología , Ritmo Circadiano/efectos de los fármacos , Ritmo Circadiano/fisiología , Estudios Cruzados , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Endotelio Vascular/efectos de los fármacos , Endotelio Vascular/fisiopatología , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Frecuencia Cardíaca/fisiología , Humanos , Hipertensión/epidemiología , Hipertensión/fisiopatología , Masculino , Persona de Mediana Edad , Adhesividad Plaquetaria/efectos de los fármacos , Adhesividad Plaquetaria/fisiología , Estudios Prospectivos , Factores de Riesgo , Vasodilatación/efectos de los fármacos , Vasodilatación/fisiologíaRESUMEN
Two heart transplant patients aged 80 and 83 years with recurrent heart failure due to severe tricuspid regurgitation are reported. In view of their high perioperative risk, both patients underwent percutaneous transcatheter edge-to-edge tricuspid valve repair, and both experienced excellent technical success, with favorable 2-year clinical outcome. (Level of Difficulty: Advanced.).
RESUMEN
BACKGROUND: There may be a considerable gap between LDL cholesterol (LDL-C) and blood pressure (BP) goal values recommended by the guidelines and results achieved in daily practice. DESIGN: Prospective cross-sectional survey of cardiovascular disease risk profiles and management with focus on lipid lowering and BP lowering in clinical practice. METHODS: In phase 1, the cardiovascular risk of patients with known lipid profile visiting their general practitioner was anonymously assessed in accordance to the PROCAM-score. In phase 2, high-risk patients who did not achieve LDL-C goal less than 2.6 mmol/l in phase 1 could be further documented. RESULTS: Six hundred thirty-five general practitioners collected the data of 23 892 patients with known lipid profile. Forty percent were high-risk patients (diabetes mellitus or coronary heart disease or PROCAM-score >20%), compared with 27% estimated by the physicians. Goal attainment rate was almost double for BP than for LDL-C in high-risk patients (62 vs. 37%). Both goals were attained by 25%. LDL-C values in phase 1 and 2 were available for 3097 high-risk patients not at LDL-C goal in phase 1; 32% of patients achieved LDL-C goal of less than 2.6 mmol/l after a mean of 17 weeks. The most successful strategies for LDL-C reduction were implemented in only 22% of the high-risk patients. CONCLUSION: Although patients at high cardiovascular risk were treated more intensively than low or medium risk patients, the majority remained insufficiently controlled, which is an incentive for intensified medical education. Adequate implementation of Swiss and International guidelines would expectedly contribute to improved achievement of LDL-C and BP goal values in daily practice.
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Enfermedades Cardiovasculares/prevención & control , LDL-Colesterol/sangre , Dislipidemias/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Pautas de la Práctica en Medicina , Anciano , Antihipertensivos/uso terapéutico , Biomarcadores/sangre , Presión Sanguínea , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/fisiopatología , Estudios Transversales , Regulación hacia Abajo , Utilización de Medicamentos , Dislipidemias/sangre , Dislipidemias/complicaciones , Dislipidemias/fisiopatología , Medicina Familiar y Comunitaria , Femenino , Adhesión a Directriz , Encuestas de Atención de la Salud , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina/estadística & datos numéricos , Práctica Privada , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo , Suiza , Resultado del TratamientoRESUMEN
Cardiovascular risk assessment might be improved with the addition of emerging, new tests derived from atherosclerosis imaging, laboratory tests or functional tests. This article reviews relative risk, odds ratios, receiver-operating curves, posttest risk calculations based on likelihood ratios, the net reclassification improvement and integrated discrimination. This serves to determine whether a new test has an added clinical value on top of conventional risk testing and how this can be verified statistically. Two clinically meaningful examples serve to illustrate novel approaches. This work serves as a review and basic work for the development of new guidelines on cardiovascular risk prediction, taking into account emerging tests, to be proposed by members of the 'Taskforce on Vascular Risk Prediction' under the auspices of the Working Group 'Swiss Atherosclerosis' of the Swiss Society of Cardiology in the future.