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1.
Cardiovasc Drugs Ther ; 33(3): 315-322, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30903545

RESUMEN

PURPOSE: PARADIGM-HF demonstrated the superiority of sacubitril/valsartan over enalapril in patients with heart failure and reduced ejection fraction (HF-REF). How widely applicable sacubitril/valsartan treatment is in unselected patients with HF-REF is not known. We examined eligibility of patients with HF-REF for treatment with sacubitril/valsartan, according to the criteria used in PARADIGM-HF, in the Swedish Heart Failure Registry (SwedeHF). METHODS: Patients were considered potentially eligible if they were not hospitalized, had symptoms (NYHA class II-IV) and a reduced LVEF (≤ 40%), and were prescribed an angiotensin-converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB) at a dose equivalent to enalapril ≥ 10 mg daily. In these patients, we evaluated further eligibility according to the main additional PARADIGM-HF inclusion criteria. RESULTS: Of 12,866 outpatients in NYHA functional class II-IV with an LVEF ≤ 40%, 9577 were prescribed at least 10 mg of enalapril (or equivalent) daily. Complete additional data were available for 3099 of these patients (32.4%) and of them 75.5% were potentially eligible for treatment with sacubitril/valsartan. The most common reason for ineligibility was a low natriuretic peptide level (n = 462, 14.9%). Only a small proportion of patients were ineligible due to low eGFR or serum potassium level. Because only 78% of patients were taking ≥ 10 mg enalapril or equivalent daily, only 58.9% of all patients (75.5% of 78%) were eligible for sacubitril/valsartan. CONCLUSIONS: Between 34 and 76% of symptomatic patients with HF-REF in a 'real world' population are eligible for treatment with sacubitril/valsartan, depending on background ACEI/ARB dose. The most common reason for ineligibility is a low natriuretic peptide level.


Asunto(s)
Aminobutiratos/uso terapéutico , Bloqueadores del Receptor Tipo 1 de Angiotensina II/uso terapéutico , Determinación de la Elegibilidad , Insuficiencia Cardíaca/tratamiento farmacológico , Inhibidores de Proteasas/uso terapéutico , Volumen Sistólico/efectos de los fármacos , Tetrazoles/uso terapéutico , Función Ventricular Izquierda/efectos de los fármacos , Anciano , Anciano de 80 o más Años , Aminobutiratos/efectos adversos , Bloqueadores del Receptor Tipo 1 de Angiotensina II/efectos adversos , Biomarcadores/sangre , Compuestos de Bifenilo , Toma de Decisiones Clínicas , Combinación de Medicamentos , Femenino , Insuficiencia Cardíaca/sangre , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Péptido Natriurético Encefálico/sangre , Neprilisina/antagonistas & inhibidores , Selección de Paciente , Fragmentos de Péptidos/sangre , Inhibidores de Proteasas/efectos adversos , Recuperación de la Función , Sistema de Registros , Suecia , Tetrazoles/efectos adversos , Resultado del Tratamiento , Valsartán
2.
Diabetes Obes Metab ; 18(2): 169-77, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26511599

RESUMEN

AIMS: To investigate whether the degree of albuminuria reduction observed in the ALTITUDE trial is associated with renal and cardiovascular protection, and secondly, whether the reduction in albuminuria was too small to afford clinical benefit. METHODS: In a post hoc analysis of the ALTITUDE trial in 8561 patients with type 2 diabetes and chronic kidney disease or cardiovascular disease we examined the effect of albuminuria changes at 6 months on renal and cardiovascular outcomes using Cox proportional hazard regression. RESULTS: The median change in albuminuria in the first 6 months in the aliskiren arm of the trial was -12% (25th to 75th percentile: -48.7_to_ +41.9%) and 0.0% (25th to 75th percentile: -40.2_to_55%) in the placebo arm. Changes in albuminuria in the first 6 months were linearly associated with renal and cardiovascular endpoints: a >30% reduction in albuminuria in the first 6 months was associated with a 62% reduction in renal risk and a 25% reduction in cardiovascular risk compared with an increase in albuminuria. The association between changes at 6 months in albuminuria and renal or cardiovascular endpoints was similar in the two treatment groups (p for interaction >0.1 for both endpoints). CONCLUSIONS: The addition of aliskiren to angiotensin-converting enzyme inhibitor/angiotensin receptor blocker therapy resulted in albuminuria changes that were associated with renal and cardiovascular risk changes. This did not translate into renal or cardiovascular protection because the overall reduction in albuminuria in the aliskiren arm was too small and nearly similar to that in the placebo arm.


Asunto(s)
Albuminuria/prevención & control , Antihipertensivos/uso terapéutico , Enfermedades Cardiovasculares/prevención & control , Diabetes Mellitus Tipo 2/complicaciones , Hipertensión/tratamiento farmacológico , Insuficiencia Renal Crónica/prevención & control , Renina/antagonistas & inhibidores , Anciano , Albuminuria/complicaciones , Albuminuria/epidemiología , Amidas/uso terapéutico , Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Biomarcadores/orina , Enfermedades Cardiovasculares/complicaciones , Enfermedades Cardiovasculares/epidemiología , Estudios de Cohortes , Método Doble Ciego , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Fumaratos/uso terapéutico , Humanos , Hipertensión/complicaciones , Hipertensión/orina , Masculino , Persona de Mediana Edad , Guías de Práctica Clínica como Asunto , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/epidemiología , Factores de Riesgo
3.
QJM ; 109(6): 377-382, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25979270

RESUMEN

BACKGROUND: Anaemia is common among patients with heart failure (HF) and is an important prognostic marker. AIM: We sought to determine the prognostic importance of anaemia in a large multinational pooled dataset of prospectively enrolled HF patients, with the specific aim to determine the prognostic role of anaemia in HF with preserved and reduced ejection fraction (HF-PEF and HF-REF, respectively). DESIGN: Individual person data meta-analysis. METHODS: Patients with haemoglobin (Hb) data from the MAGGIC dataset were used. Anaemia was defined as Hb < 120 g/l in women and <130 g/l in men. HF-PEF was defined as EF ≥ 50%; HF-REF was EF < 50%. Cox proportional hazard modelling, with adjustment for clinically relevant variables, was undertaken to investigate factors associated with 3-year all-cause mortality. RESULTS: Thirteen thousand two hundred and ninety-five patients with HF from 19 studies (9887 with HF-REF and 3408 with HF-PEF). The prevalence of anaemia was similar among those with HF-REF and HF-PEF (42.8 and 41.6% respectively). Compared with patients with normal Hb values, those with anaemia were older, were more likely to have diabetes, ischaemic aetiology, New York Heart Association class IV symptoms, lower estimated glomerular filtration rate and were more likely to be taking diuretic and less likely to be taking a beta-blocker. Patients with anaemia had higher all-cause mortality (adjusted hazard ratio [aHR] 1.38, 95% confidence interval [CI] 1.25-1.51), independent of EF group: aHR 1.67 (1.39-1.99) in HF-PEF and aHR 2.49 (2.13-2.90) in HF-REF. CONCLUSIONS: Anaemia is an adverse prognostic factor in HF irrespective of EF. The prognostic importance of anaemia was greatest in patients with HF-REF.


Asunto(s)
Anemia/complicaciones , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/diagnóstico , Volumen Sistólico/fisiología , Anciano , Anemia/mortalidad , Anemia/fisiopatología , Causas de Muerte , Femenino , Insuficiencia Cardíaca/mortalidad , Insuficiencia Cardíaca/fisiopatología , Humanos , Masculino , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Prospectivos
4.
Diabet Med ; 32(8): 1090-6, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25818859

RESUMEN

AIM: To investigate whether previous physical activity levels are associated with blood glucose levels in individuals with impaired glucose tolerance in the context of an international pharmaceutical trial. METHODS: Data were analysed from the NAVIGATOR trial, which involved 9306 individuals with impaired glucose tolerance and high cardiovascular risk from 40 different countries, recruited in the period 2002-2004. Fasting glucose, 2-h post-challenge glucose and physical activity (pedometer) were assessed annually. A longitudinal regression analysis was used to determine whether physical activity levels 2 years (t-2 ) and 1 year (t-1 ) previously were associated with levels of glucose, after adjusting for previous glucose levels and other patient characteristics. Those participants with four consecutive annual measures of glucose and two consecutive measures of physical activity were included in the analysis. RESULTS: The analysis included 3964 individuals. Change in physical activity from t-2 to t-1 and activity levels at t-2 were both associated with 2-h glucose levels after adjustment for previous glucose levels and baseline characteristics; however, the associations were weak: a 100% increase in physical activity was associated with a 0.9% reduction in 2-h glucose levels. In addition, previous physical activity only explained an additional 0.05% of the variance in 2-h glucose over the variance explained by the history of 2-h glucose alone (R(2)  = 0.3473 vs. 0.3468). There was no association with fasting glucose. CONCLUSIONS: In the context of a large international clinical trial, previous physical activity levels did not meaningfully influence glucose levels in those with a high risk of chronic disease, after taking into account participants' previous trajectory of glucose control.


Asunto(s)
Glucemia/metabolismo , Ayuno , Intolerancia a la Glucosa/metabolismo , Actividad Motora , Conducta de Reducción del Riesgo , Acelerometría , Actigrafía , Anciano , Bloqueadores del Receptor Tipo 1 de Angiotensina II/uso terapéutico , Enfermedades Cardiovasculares , Estudios de Cohortes , Ciclohexanos/uso terapéutico , Femenino , Intolerancia a la Glucosa/tratamiento farmacológico , Prueba de Tolerancia a la Glucosa , Humanos , Hipoglucemiantes/uso terapéutico , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Nateglinida , Fenilalanina/análogos & derivados , Fenilalanina/uso terapéutico , Estudios Prospectivos , Análisis de Regresión , Factores de Riesgo , Valsartán/uso terapéutico
5.
Eur J Neurol ; 22(1): 163-9, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25370204

RESUMEN

BACKGROUND AND PURPOSE: There are concerns that systemic thrombolysis might not achieve clinically important outcome amongst chronic heart failure (CHF) patients with acute ischaemic stroke. Our aim was to investigate the relevance of CHF on the outcome of acute stroke patients who received thrombolysis. METHODS: A non-randomized cohort analysis was conducted using data obtained from the Virtual International Stroke Trials Archive. The association of outcome amongst CHF patients with thrombolysis treatment was described using the modified Rankin scale (mRS) distribution at day 90, stratified by the presence of atrial fibrillation. Dichotomized outcomes were considered as a secondary end-point. RESULTS: 5677 patients were identified, of whom 2366 (41.7%) received thombolysis. Five hundred and three (8.9%) patients had CHF, of whom 209 (41.6%) received thrombolysis. The presence of CHF was associated with a negative impact on overall stroke outcome [odds ratio (OR) 0.73 (95% confidence interval (CI) 0.62-0.87), P < 0.001]. However, thrombolysis treatment was associated with favourable functional outcome using ordinal mRS, irrespective of CHF status, after adjustment for age and baseline National Institutes of Health Stroke Scale [OR 1.44 (95% CI 1.04-2.01, P = 0.029) for CHF patients versus OR 1.50 (95% CI 1.36-1.66, P < 0.001) for non-CHF patients]. CHF patients had higher mortality at day 90 than non-CHF patients. There was no significant difference for recurrent stroke or symptomatic intracerebral haemorrhage within 7 days of the initial stroke between CHF and thrombolysis groups. CONCLUSIONS: Chronic heart failure was associated with a worse outcome with or without thrombolysis. However, acute stroke patients who received thrombolysis had more favourable outcome regardless of CHF status, compared with their untreated peers. Our findings should reassure clinicians considering systemic thrombolysis treatment in hyperacute ischaemic stroke patients with CHF.


Asunto(s)
Isquemia Encefálica/tratamiento farmacológico , Comorbilidad , Insuficiencia Cardíaca , Evaluación de Resultado en la Atención de Salud , Accidente Cerebrovascular/tratamiento farmacológico , Terapia Trombolítica/métodos , Anciano , Anciano de 80 o más Años , Fibrilación Atrial/epidemiología , Isquemia Encefálica/epidemiología , Enfermedad Crónica/epidemiología , Estudios de Cohortes , Femenino , Insuficiencia Cardíaca/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Accidente Cerebrovascular/epidemiología , Estados Unidos
6.
Int J Obes (Lond) ; 38(8): 1110-4, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24173404

RESUMEN

BACKGROUND: In heart failure (HF), obesity, defined as body mass index (BMI) ≥30 kg m(-2), is paradoxically associated with higher survival rates compared with normal-weight patients (the 'obesity paradox'). We sought to determine if the obesity paradox differed by HF subtype (reduced ejection fraction (HF-REF) versus preserved ejection fraction (HF-PEF)). PATIENTS AND METHODS: A sub-analysis of the MAGGIC meta-analysis of patient-level data from 14 HF studies was performed. Subjects were divided into five BMI groups: <22.5, 22.5-24.9 (referent), 25-29.9, 30-34.9 and ≥35 kg m(-2). Cox proportional hazards models adjusted for age, sex, aetiology (ischaemic or non-ischaemic), hypertension, diabetes and baseline blood pressure, stratified by study, were used to examine the independent association between BMI and 3-year total mortality. Analyses were conducted for the overall group and within HF-REF and HF-PEF groups. RESULTS: BMI data were available for 23 967 subjects (mean age, 66.8 years; 32% women; 46% NYHA Class II; 50% Class III) and 5609 (23%) died by 3 years. Obese patients were younger, more likely to receive cardiovascular (CV) drug treatment, and had higher comorbidity burdens. Compared with BMI levels between 22.5 and 24.9 kg m(-2), the adjusted relative hazards for 3-year mortality in subjects with HF-REF were: hazard ratios (HR)=1.31 (95% confidence interval=1.15-1.50) for BMI <22.5, 0.85 (0.76-0.96) for BMI 25.0-29.9, 0.64 (0.55-0.74) for BMI 30.0-34.9 and 0.95 (0.78-1.15) for BMI ≥35. Corresponding adjusted HRs for those with HF-PEF were: 1.12 (95% confidence interval=0.80-1.57) for BMI <22.5, 0.74 (0.56-0.97) for BMI 25.0-29.9, 0.64 (0.46-0.88) for BMI 30.0-34.9 and 0.71 (0.49-1.05) for BMI ≥35. CONCLUSIONS: In patients with chronic HF, the obesity paradox was present in both those with reduced and preserved ventricular systolic function. Mortality in both HF subtypes was U-shaped, with a nadir at 30.0-34.9 kg m(-2).


Asunto(s)
Insuficiencia Cardíaca/mortalidad , Obesidad/mortalidad , Volumen Sistólico , Adulto , Índice de Masa Corporal , Comorbilidad , Femenino , Insuficiencia Cardíaca/fisiopatología , Humanos , Masculino , Obesidad/complicaciones , Pronóstico , Modelos de Riesgos Proporcionales , Factores de Riesgo , Análisis de Supervivencia
7.
J Intern Med ; 275(2): 134-43, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24118421

RESUMEN

AIMS: The four pivotal beta-blocker trials in heart failure (HF) had different inclusion criteria, making comparison difficult without patient stratifying. The aim of this study was to compare, in similar patients, the effects of bisoprolol, metoprolol controlled release/extended release (CR/XL), carvedilol and nebivolol on (i) total mortality, (ii) all-cause mortality or hospitalization due to cardiovascular causes (time to first event), (iii) all-cause mortality or hospitalization because of HF and (iv) tolerability, defined as discontinuation of randomized treatment. METHODS: We compared stratified (s ) subsets in MERIT-HF with patients in CIBIS-II [New York Heart Association (NYHA) class III/IV and ejection fraction (EF) ≤ 35%] and COPERNICUS (NYHA III/IV and EF <25%) and in patients with systolic HF in SENIORS-SHF (age ≥ 70 years and EF ≤ 35%). RESULTS: The annual mortality rates in the placebo and beta-blocker arms were: (i) CIBIS-II (n = 2647), 13.2% vs. 8.8% (relative risk reduction 34%, 95% CI: 19-46, P < 0.0001) and MERIT-HFs (n = 2002), 14.8% vs. 8.6% (relative risk reduction 42%, 95% CI: 24-56, P < 0.0001); (ii) COPERNICUS (n = 2289), 19.7% vs. 12.8% (relative risk reduction 35%, 95% CI: 19-48, P = 0.0014) and MERIT-HFs (n = 795), 19.1% vs. 11.7% (relative risk reduction 39%; 95% CI: 11-58, P = 0.0086); (iii) SENIORS-SHF (n = 1359), 11.3% vs. 9.7% (relative risk reduction 16%, NS) and MERIT-HFs (n = 985), 14.8% vs. 10.1% (relative risk reduction 32%, 95% CI: 2-53, P = 0.038). The effects on the other outcomes assessed were similar. Analyses indicated fewer discontinuations from randomized treatment on beta-blockers compared with placebo in COPERNICUS and the MERIT-HFs subsets. CONCLUSION: The efficacy and tolerability of bisoprolol, carvedilol and metoprolol CR/XL are similar in patients with systolic HF, irrespective of NYHA class or ejection fraction. Nebivolol is less effective and not better tolerated.


Asunto(s)
Antagonistas Adrenérgicos beta/uso terapéutico , Insuficiencia Cardíaca Sistólica/tratamiento farmacológico , Insuficiencia Cardíaca Sistólica/mortalidad , Hospitalización/estadística & datos numéricos , Antagonistas Adrenérgicos beta/administración & dosificación , Antagonistas Adrenérgicos beta/efectos adversos , Adulto , Anciano , Benzopiranos/uso terapéutico , Bisoprolol/uso terapéutico , Carbazoles/uso terapéutico , Carvedilol , Preparaciones de Acción Retardada , Etanolaminas/uso terapéutico , Femenino , Insuficiencia Cardíaca Sistólica/fisiopatología , Humanos , Masculino , Metoprolol/uso terapéutico , Persona de Mediana Edad , Nebivolol , Propanolaminas/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Riesgo , Índice de Severidad de la Enfermedad , Volumen Sistólico , Resultado del Tratamiento
8.
N Engl J Med ; 365(1): 32-43, 2011 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-21732835

RESUMEN

BACKGROUND: Nesiritide is approved in the United States for early relief of dyspnea in patients with acute heart failure. Previous meta-analyses have raised questions regarding renal toxicity and the mortality associated with this agent. METHODS: We randomly assigned 7141 patients who were hospitalized with acute heart failure to receive either nesiritide or placebo for 24 to 168 hours in addition to standard care. Coprimary end points were the change in dyspnea at 6 and 24 hours, as measured on a 7-point Likert scale, and the composite end point of rehospitalization for heart failure or death within 30 days. RESULTS: Patients randomly assigned to nesiritide, as compared with those assigned to placebo, more frequently reported markedly or moderately improved dyspnea at 6 hours (44.5% vs. 42.1%, P=0.03) and 24 hours (68.2% vs. 66.1%, P=0.007), but the prespecified level for significance (P≤0.005 for both assessments or P≤0.0025 for either) was not met. The rate of rehospitalization for heart failure or death from any cause within 30 days was 9.4% in the nesiritide group versus 10.1% in the placebo group (absolute difference, -0.7 percentage points; 95% confidence interval [CI], -2.1 to 0.7; P=0.31). There were no significant differences in rates of death from any cause at 30 days (3.6% with nesiritide vs. 4.0% with placebo; absolute difference, -0.4 percentage points; 95% CI, -1.3 to 0.5) or rates of worsening renal function, defined by more than a 25% decrease in the estimated glomerular filtration rate (31.4% vs. 29.5%; odds ratio, 1.09; 95% CI, 0.98 to 1.21; P=0.11). CONCLUSIONS: Nesiritide was not associated with an increase or a decrease in the rate of death and rehospitalization and had a small, nonsignificant effect on dyspnea when used in combination with other therapies. It was not associated with a worsening of renal function, but it was associated with an increase in rates of hypotension. On the basis of these results, nesiritide cannot be recommended for routine use in the broad population of patients with acute heart failure. (Funded by Scios; ClinicalTrials.gov number, NCT00475852.).


Asunto(s)
Disnea/tratamiento farmacológico , Insuficiencia Cardíaca/tratamiento farmacológico , Natriuréticos/uso terapéutico , Péptido Natriurético Encefálico/uso terapéutico , Readmisión del Paciente/estadística & datos numéricos , Enfermedad Aguda , Anciano , Método Doble Ciego , Disnea/etiología , Femenino , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/mortalidad , Humanos , Hipotensión/inducido químicamente , Análisis de Intención de Tratar , Enfermedades Renales/etiología , Masculino , Persona de Mediana Edad , Natriuréticos/efectos adversos , Péptido Natriurético Encefálico/efectos adversos , Recurrencia
9.
Heart ; 95(23): 1920-4, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19713201

RESUMEN

BACKGROUND: Aldosterone has a key role in the pathophysiology of heart failure. In around 50% of such patients, aldosterone "escapes" from inhibition by drugs that interrupt the renin-angiotensin axis; such patients have a worse clinical outcome. Insulin resistance is a risk factor in heart failure and cardiovascular disease. The relation between aldosterone status and insulin sensitivity was investigated in a cohort of heart failure patients. METHODS: 302 patients with New York Heart Association (NYHA) class II-IV heart failure on conventional therapy were randomised in the ALiskiren Observation of heart Failure Treatment study (ALOFT), designed to test the safety of a directly acting renin inhibitor. Plasma aldosterone and 24-hour urinary aldosterone excretion, as well as fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR) were measured. Subjects with aldosterone escape and high urinary aldosterone were identified according to previously accepted definitions. RESULTS: 20% of subjects demonstrated aldosterone escape and 34% had high urinary aldosterone levels. At baseline, there was a positive correlation between fasting insulin and plasma (r = 0.22 p<0.01) and urinary aldosterone(r = 0.19 p<0.03). Aldosterone escape and high urinary aldosterone subjects both demonstrated higher levels of fasting insulin (p<0.008, p<0.03), HOMA-IR (p<0.06, p<0.03) and insulin-glucose ratios (p<0.006, p<0.06) when compared to low aldosterone counterparts. All associations remained significant when adjusted for potential confounders. CONCLUSIONS: This study demonstrates a novel direct relation between aldosterone status and insulin resistance in heart failure. This observation merits further study and may identify an additional mechanism that contributes to the adverse clinical outcome associated with aldosterone escape.


Asunto(s)
Aldosterona/metabolismo , Insuficiencia Cardíaca/metabolismo , Resistencia a la Insulina/fisiología , Anciano , Diabetes Mellitus/metabolismo , Ayuno/sangre , Femenino , Insuficiencia Cardíaca/tratamiento farmacológico , Homeostasis , Humanos , Insulina/sangre , Masculino , Persona de Mediana Edad , Renina/antagonistas & inhibidores
11.
QJM ; 101(5): 345-9, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18281365

RESUMEN

BACKGROUND: Echocardiography is one of the cornerstones of cardiovascular investigation. The escalating demands on echocardiography services necessitate close examination of how we organize our departments on a day-to-day basis, in order to provide a consistent, high-quality service. AIM: To evaluate current transthoracic echocardiography practice in the UK. DESIGN: National postal survey. METHODS: A questionnaire was sent to the chief cardiac physiologist (CP) of every hospital in the UK with echocardiographic facilities. RESULTS: Three hundred and thirty six echocardiographic departments were identified. One hundred and twenty six (37.5%) completed questionnaires were returned. In 87% of hospitals, CPs both performed and reported over 80% of echocardiograms. Fifty-seven percent of CPs and 22% of doctors performing echocardiography held an accreditation in echocardiography. Only 60% of hospitals had formal criteria that had to be met prior to an operator being allowed to report echocardiograms unsupervised. Fewer than half of hospitals regularly audited their echocardiography service. Both outpatient and inpatient waiting times for echocardiography were highly variable and frequently excessive. Fewer than half of hospitals used modern techniques for assessing diastolic function, mechanical dyssynchrony or severity of mitral regurgitation. CONCLUSION: In the UK, many transthoracic echocardiograms are performed and reported by operators without formally assessed competence. Fewer than half of hospitals regularly audited their service or used modern echocardiographic techniques. Services are likely to be improved by developing and instituting mandatory national guidelines.


Asunto(s)
Cardiología/normas , Competencia Clínica/normas , Ecocardiografía/estadística & datos numéricos , Atención a la Salud/normas , Atención a la Salud/estadística & datos numéricos , Ecocardiografía/normas , Cardiopatías/diagnóstico , Hospitales , Humanos , Práctica Profesional/normas , Encuestas y Cuestionarios , Reino Unido
12.
Heart ; 94(3): 296-304, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17664189

RESUMEN

OBJECTIVE: To investigate the nature and importance of blood glucose abnormalities in an unselected heart failure (HF) population. DESIGN: Cohort study. SETTING: Urban University hospital. PATIENTS: All index emergency HF admissions to one University hospital during the year 2000 were studied. RESULTS: 454 consecutive index admissions had blood chemistry, diabetic status and follow-up information recorded. 390 (86%) patients had an echocardiogram, of whom 117 (30%) had preserved left ventricular systolic function and 110 (24%) had diabetes. Sixty (13%) patients had abnormal glucose tolerance (8.0-10.99 mmol/l), and 284 (63%) patients had a normal admission blood glucose (<8 mmol/l). 51 (11.2%) patients died in hospital. After adjustment for other prognostic attributes, abnormal glucose tolerance (Cox hazard ratio HR, 95% CI: 5.920, 1.03 to 34.00; p = 0.046) but not diabetes (HR 3.46, 0.75 to 16.02; p = 0.112) predicted in-hospital mortality. During follow-up (median 812 (range 632-978) days), 104 (36.6%), 30 (50.0%) and 55 (50%) patients with a normal admission blood glucose concentration, abnormal glucose tolerance and diabetes, respectively, died (log rank test p = 0.0037, adjusted p = 0.075). Compared with patients with normal admission blood glucose, abnormal glucose tolerance (adjusted HR: 1.41 (0.92 to 2.16); p = 0.12) and diabetes (adjusted HR: 2.02 (1.41 to 2.88); p = 0.0001) predicted mortality. Considering glucose on admission as a continuous covariate, a 2 mmol/l increase was associated with a HR of 1.08 (1.03 to 1.13), p = 0.0010, which after adjustment for the above covariates became 1.08 (1.03 to 1.13), p = 0.0023. CONCLUSIONS: Admission blood glucose concentration and diabetes are prognostically important in HF and could help target some patients for more intensive therapy.


Asunto(s)
Diabetes Mellitus/mortalidad , Angiopatías Diabéticas/mortalidad , Intolerancia a la Glucosa/mortalidad , Insuficiencia Cardíaca/mortalidad , Enfermedad Aguda , Anciano , Glucemia/metabolismo , Diabetes Mellitus/sangre , Angiopatías Diabéticas/sangre , Angiopatías Diabéticas/complicaciones , Ecocardiografía/métodos , Métodos Epidemiológicos , Femenino , Tasa de Filtración Glomerular/fisiología , Intolerancia a la Glucosa/sangre , Intolerancia a la Glucosa/complicaciones , Insuficiencia Cardíaca/sangre , Insuficiencia Cardíaca/complicaciones , Humanos , Masculino , Pronóstico , Volumen Sistólico/fisiología , Sístole/fisiología , Disfunción Ventricular Izquierda/diagnóstico por imagen
13.
Cardiovasc Drugs Ther ; 21(6): 459-65, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17992567

RESUMEN

The Clinical Trials described in this article were presented at the Hotline and Clinical Trial Update Sessions of the European Society of Cardiology Congress held in September 2007 in Vienna, Austria. The sessions chosen for this article represent the scope of interest of Cardiovascular Drugs and Therapy. The presentations should be considered preliminary, as further analyses could alter the final publication of the results of these studies. PROSPECT evaluated echocardiographic criteria for optimal selection of patients with moderate to severe heart failure who may benefit from cardiac resynchronisation therapy, however concluded that no single echocardiographic measure can be recommended. EVEREST found that tolvaptan, a vasopressin V(2) antagonist, resulted in early weight reduction and improvement of dyspnoea in patients with acute heart failure, but lacked long term improvement. In ARISE, the anti-oxidant succinobucal did not affect the primary outcome in high risk cardiovascular patients, but improved the combination of cardiovascular death, myocardial infarction and stroke, and diabetic control in diabetics. ALOFT showed that the addition of the renin inhibitor aliskiren to an ACE inhibitor or ARB and a beta-blocker leads to favourable effects on neurohormonal actions in heart failure. FINESSE markedly improved coronary patency before PCI with half-dose reteplase/abciximab in STEMI patients, however without significantly improving short-term outcome. The Prague-8 Study evaluated whether routine clopidogrel administered >6 h pre-angiography would be a safe way to achieve therapeutic drug levels in case a follow-up intervention would be considered immediately, but appeared not justified because of bleeding complications. CARESS in MI showed that high risk patients with evolving STEMI who undergo thrombolytic therapy should undergo PCI early after the thrombolysis. Finally, the ACUITY trial found that in moderate or high risk Non ST elevation ACS patients triaged to PCI, coronary artery bypass graft (CABG) surgery, or medical management, bivalirudin, with or without associated GPIIb/IIIa inhibitor therapy, resulted in a marked reduction of bleeding at 30 days whilst preserving the ischemic and mortality benefit at 1 year follow up.


Asunto(s)
Ensayos Clínicos como Asunto , Cardiopatías/tratamiento farmacológico , Abciximab , Síndrome Coronario Agudo/tratamiento farmacológico , Amidas/uso terapéutico , Anticuerpos Monoclonales/uso terapéutico , Benzazepinas/uso terapéutico , Clopidogrel , Electrocardiografía , Europa (Continente) , Fumaratos/uso terapéutico , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/fisiopatología , Hirudinas , Humanos , Fragmentos Fab de Inmunoglobulinas/uso terapéutico , Infarto del Miocardio/tratamiento farmacológico , Fragmentos de Péptidos/uso terapéutico , Probucol/análogos & derivados , Probucol/uso terapéutico , Proteínas Recombinantes/uso terapéutico , Ticlopidina/análogos & derivados , Ticlopidina/uso terapéutico , Tolvaptán
14.
Eur Respir J ; 30(1): 104-9, 2007 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17360728

RESUMEN

All hospitalisations for pulmonary arterial hypertension (PAH) in the Scottish population were examined to determine the epidemiological features of PAH. These data were compared with expert data from the Scottish Pulmonary Vascular Unit (SPVU). Using the linked Scottish Morbidity Record scheme, data from all adults aged 16-65 yrs admitted with PAH (idiopathic PAH, pulmonary hypertension associated with congenital heart abnormalities and pulmonary hypertension associated with connective tissue disorders) during the period 1986-2001 were identified. These data were compared with the most recent data in the SPVU database (2005). Overall, 374 Scottish males and females aged 16-65 yrs were hospitalised with incident PAH during 1986-2001. The annual incidence of PAH was 7.1 cases per million population. On December 31, 2002, there were 165 surviving cases, giving a prevalence of PAH of 52 cases per million population. Data from the SPVU were available for 1997-2006. In 2005, the last year with a complete data set, the incidence of PAH was 7.6 cases per million population and the corresponding prevalence was 26 cases per million population. Hospitalisation data from the Scottish Morbidity Record scheme gave higher prevalences of pulmonary arterial hypertension than data from the expert centres (Scotland and France). The hospitalisation data may overestimate the true frequency of pulmonary arterial hypertension in the population, but it is also possible that the expert centres underestimate the true frequency.


Asunto(s)
Hipertensión Pulmonar/diagnóstico , Hipertensión Pulmonar/epidemiología , Adolescente , Adulto , Anciano , Estudios de Cohortes , Estudios Epidemiológicos , Femenino , Hospitalización , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Prevalencia , Sistema de Registros , Escocia
15.
Heart ; 93(1): 59-64, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16952975

RESUMEN

BACKGROUND: Electrocardiographic left ventricular hypertrophy (ECG LVH) is a powerful independent predictor of cardiovascular morbidity and mortality in hypertension. OBJECTIVE: To determine the contemporary prevalence and prognostic implications of ECG LVH in a broad spectrum of patients with heart failure with and without reduced left ventricular ejection fraction (LVEF). METHODS AND OUTCOME: The Candesartan in Heart failure: Assessment of Reduction in Mortality and morbidity (CHARM) programme randomised 7599 patients with symptomatic heart failure to receive candesartan or placebo. The primary outcome comprised cardiovascular death or hospital admission for worsening heart failure. The relative risk (RR) conveyed by ECG LVH compared with a normal ECG was examined in a Cox model, adjusting for as many as 31 covariates of prognostic importance. RESULTS: The prevalence of ECG LVH was similar in all three CHARM trials (Alternative, 15.4%; Added, 17.1%; Preserved, 14.7%; Overall, 15.7%) despite a more frequent history of hypertension in CHARM-Preserved. ECG LVH was an independent predictor of worse prognosis in CHARM-Overall. RR for the primary outcome was 1.27 (95% confidence interval (CI) 1.04 to 1.55, p = 0.018). The risk of secondary end points was also increased: cardiovascular death, 1.50 (95% CI 1.13 to 1.99, p = 0.005); hospitalisation due to heart failure, 1.19 (95% CI 0.94 to 1.50, p = 0.148); and composite major cardiovascular events, 1.35 (95% CI 1.12 to 1.62, p = 0.002). CONCLUSION: ECG LVH is similarly prevalent in patients with symptomatic heart failure regardless of LVEF. The simple clinical finding of ECG LVH was an independent predictor of a worse clinical outcome in a broad spectrum of patients with heart failure receiving extensive contemporary treatment. Candesartan had similar benefits in patients with and without ECG LVH.


Asunto(s)
Insuficiencia Cardíaca/etiología , Hipertrofia Ventricular Izquierda/complicaciones , Anciano , Bloqueadores del Receptor Tipo 1 de Angiotensina II/uso terapéutico , Antihipertensivos/uso terapéutico , Bencimidazoles/uso terapéutico , Compuestos de Bifenilo , Electrocardiografía , Métodos Epidemiológicos , Femenino , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/epidemiología , Hospitalización/estadística & datos numéricos , Humanos , Hipertrofia Ventricular Izquierda/epidemiología , Hipertrofia Ventricular Izquierda/fisiopatología , Masculino , Persona de Mediana Edad , Pronóstico , Índice de Severidad de la Enfermedad , Volumen Sistólico , Tetrazoles/uso terapéutico , Resultado del Tratamiento , Disfunción Ventricular Izquierda/etiología
16.
Heart ; 92(12): 1739-46, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16807274

RESUMEN

OBJECTIVE: To examine the long-term cardiovascular consequences of angina in a large epidemiological study. DESIGN: Prospective cohort study conducted between 1972 and 1976 with 20 years of follow-up (the Renfrew-Paisley Study). SETTING: Renfrew and Paisley, West Scotland, UK. PARTICIPANTS: 7048 men and 8354 women aged 45-64 years who underwent comprehensive cardiovascular screening at baseline, including the Rose Angina Questionnaire and electrocardiography (ECG). MAIN OUTCOME MEASURES: All deaths and hospitalisations for cardiovascular reasons occurring over the subsequent 20 years, according to the baseline Rose angina score and baseline ECG. RESULTS: At baseline, 669 (9.5%) men and 799 (9.6%) women had angina on Rose Angina Questionnaire. All-cause mortality for those with Rose angina was 67.7% in men and 43.3% in women at 20 years compared with 45.4% and 30.4%, respectively, in those without angina (p<0.001). Values are expressed as hazards ratio (HR) (95% confidence interval (CI). In a multivariate analysis, men with Rose angina had an increased risk of cardiovascular death or hospitalisation (1.49 (1.33 to 1.66), myocardial infarction (1.63 (1.41 to 1.85)) or heart failure (1.54 (1.13 to 2.10)) compared with men without angina. The corresponding HR (95% CI) for women were 1.38 (1.23 to 1.55), 1.56 (1.31 to 1.85) and 1.92 (1.44 to 2.56). An abnormality on the electrocardiogram (ECG) increased risk further, and both angina and an abnormality on the ECG increased risk most of all compared with those with neither angina nor ischaemic changes on the ECG. Compared with men, women with Rose angina were less likely to have a cardiovascular event (0.54 (0.46 to 0.64)) or myocardial infarction (0.44 (0.35 to 0.56)), although there was no sex difference in the risk of stroke (1.11 (0.75 to 1.65)), atrial fibrillation (0.84 (0.38 to 1.87)) or heart failure (0.79 (0.51 to 1.21)). CONCLUSIONS: Angina in middle age substantially increases the risk of death, myocardial infarction, heart failure and other cardiovascular events.


Asunto(s)
Angina de Pecho/mortalidad , Distribución por Edad , Estudios de Cohortes , Electrocardiografía , Femenino , Insuficiencia Cardíaca/mortalidad , Hospitalización/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/mortalidad , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Escocia/epidemiología , Encuestas y Cuestionarios , Tasa de Supervivencia
17.
Heart ; 92(11): 1563-70, 2006 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16775090

RESUMEN

OBJECTIVE: To analyse short- and long-term outcomes and prognostic factors in a large population-based cohort of unselected patients with a first emergency admission for suspected acute coronary syndrome between 1990 and 2000 in Scotland. METHODS: All first emergency admissions for acute myocardial infarction (AMI) and all first emergency admissions for angina (the proxy for unstable angina) between 1990 and 2000 in Scotland (population 5.1 million) were identified. Survival to five years was examined by Cox multivariate modelling to examine the independent prognostic effects of diagnosis, age, sex, year of admission, socioeconomic deprivation and co-morbidity. RESULTS: In Scotland between 1990 and 2000, 133,429 individual patients had a first emergency admission for suspected acute coronary syndrome: 96 026 with AMI and 37,403 with angina. After exclusion of deaths within 30 days, crude five-year case fatality was similarly poor for patients with angina and those with AMI (23.9% v 21.6% in men and 23.5% v 26.0% in women). The longer-term risk of a subsequent fatal or non-fatal event in the five years after first hospital admission was high: 54% in men after AMI (53% in women) and 56% after angina (49% in women). Event rates increased threefold with increasing age and 20-60% with different co-morbidities, but were 11-34% lower in women. CONCLUSIONS: Longer-term case fatality was similarly high in patients with angina and in survivors of AMI, about 5% a year. Furthermore, half the patients experienced a fatal or non-fatal event within five years. These data may strengthen the case for aggressive secondary prevention in all patients presenting with acute coronary syndrome.


Asunto(s)
Angina de Pecho/mortalidad , Infarto del Miocardio/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Urgencias Médicas/epidemiología , Tratamiento de Urgencia/mortalidad , Métodos Epidemiológicos , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Revascularización Miocárdica/mortalidad , Pronóstico , Escocia , Distribución por Sexo
18.
Eur J Heart Fail ; 8(8): 856-63, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16713336

RESUMEN

BACKGROUND: There are few data describing the effect of socioeconomic deprivation on the risk of developing heart failure (HF). AIMS: To examine the relationship between socioeconomic deprivation and hospitalisation with HF over 20 years. METHODS: Between 1972 and 1976, 15,402 individuals, aged 45-64 years, residing in two towns in Scotland, underwent cardiovascular screening. We report hospitalisations with HF over the subsequent 20 years according to Carstairs deprivation category and Social Class. RESULTS: Following screening, 628 men and women (4.1%) were hospitalised with a primary diagnosis of HF. There was a gradient in the risk of HF hospitalisation with increasing socioeconomic deprivation (P=0.003). Of the most deprived individuals, 6.4% were hospitalised for HF compared to 3.5% of the most affluent group. Cox-proportional Hazard models showed that independent of age, sex and baseline risk factors for cardio-respiratory status, greater socioeconomic deprivation increased the risk of HF admission (P<0.001, overall). The adjusted risk of admission for HF was 39% greater in the most versus least deprived subjects (RR 1.39 95% CI 1.04-2.01; P=0.04). CONCLUSION: These data show a link between social deprivation and the risk of developing HF, irrespective of baseline cardio-respiratory status and cardiovascular risk factors.


Asunto(s)
Insuficiencia Cardíaca/epidemiología , Hospitalización , Población , Femenino , Salud , Humanos , Masculino , Factores de Riesgo , Clase Social
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