Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 90
Filtrar
1.
J Hum Hypertens ; 27(7): 412-6, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23235366

RESUMEN

The Global Cardiometabolic Risk Profile in Patients with hypertension disease (GOOD) survey investigated the global cardiometabolic risk profile in 3464 adult outpatients with hypertension across 289 sites in 12 European countries. The pulse pressure and heart rate profile of the survey population was evaluated according to the presence or absence of metabolic syndrome and/or type 2 diabetes mellitus. History and treatment of hypertension were not counted as criteria for metabolic syndrome as they applied to all patients. Out of the 3370 recruited patients, 1033 had metabolic syndrome and 1177 had neither metabolic syndrome nor diabetes. When compared with patients with no metabolic syndrome or diabetes, patients with metabolic syndrome had higher pulse pressure (59±14 vs. 55±14 mm Hg) and heart rate (75.2±11.0 vs. 72.5±10.0 beats per min) (P<0.001 for both), independent of the concomitant presence or absence of diabetes, despite a more prevalent use of ß-blockers. In conclusion, in hypertensive outpatients the presence of metabolic syndrome is associated with increased heart rate and pulse pressure, which may at least in part reflect increased arterial stiffness and increased sympathetic tone. This may contribute, to some extent, to explaining the increased cardiovascular risk attributed to the presence of metabolic syndrome.


Asunto(s)
Presión Sanguínea , Frecuencia Cardíaca , Hipertensión/fisiopatología , Síndrome Metabólico/fisiopatología , Anciano , Análisis de Varianza , Antihipertensivos/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Estudios de Casos y Controles , Distribución de Chi-Cuadrado , Estudios Transversales , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/fisiopatología , Europa (Continente)/epidemiología , Femenino , Encuestas Epidemiológicas , Humanos , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Masculino , Síndrome Metabólico/diagnóstico , Síndrome Metabólico/epidemiología , Persona de Mediana Edad , Pacientes Ambulatorios , Pronóstico , Medición de Riesgo , Factores de Riesgo
2.
Int J Cardiol ; 142(3): 257-64, 2010 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-19217176

RESUMEN

BACKGROUND: Elevated C-reactive protein (CRP) concentration is a risk factor for cardiovascular events that may add prognostic information. Statin treatment is associated with significant reductions in CRP concentrations, which appear to be unrelated to the magnitude of LDL-cholesterol reduction. We investigated the effect of atorvastatin, across its dose range, on high sensitivity (hs)CRP in subjects at high cardiovascular risk. METHODS: ACTFAST was a 12 week, prospective, multicenter, open-label trial in which high-risk subjects were assigned a starting dose of atorvastatin (10, 20, 40 or 80 mg/d) based on LDL-C and status of statin use at screening (1345 statin-free [SF] and 772 previously statin-treated [ST]). RESULTS: At baseline, ST subjects had significantly lower hsCRP levels than SF subjects (ST group 2.31, 95% CI 2.15, 2.48 mg/L vs. SF group 3.16, 95% CI 2.98, 3.34 mg/L, p<0.05). In the SF group, atorvastatin 10 to 80 mg significantly (p<0.01) reduced hsCRP levels in a dose dependent-manner. In ST group, additional hsCRP reductions were observed over the statin used at baseline, which were not dose-dependent. Atorvastatin significantly decreased hsCRP concentrations in subjects with or without diabetes or the metabolic syndrome. CONCLUSIONS: Atorvastatin treatment at different doses, particularly 80 mg, significantly reduced hsCRP serum concentrations. This reduction was observed in both SF and ST groups and was independent of the presence of metabolic syndrome and/or diabetes. The beneficial effect of atorvastatin was evident at 6 weeks, supporting the practice of early introduction of higher doses of atorvastatin in high-risk patients.


Asunto(s)
Anticolesterolemiantes/administración & dosificación , Proteína C-Reactiva/metabolismo , Enfermedad de la Arteria Coronaria/prevención & control , Dislipidemias/tratamiento farmacológico , Ácidos Heptanoicos/administración & dosificación , Pirroles/administración & dosificación , Anciano , Atorvastatina , Colesterol/sangre , Enfermedad de la Arteria Coronaria/epidemiología , Diabetes Mellitus Tipo 2/epidemiología , Relación Dosis-Respuesta a Droga , Dislipidemias/epidemiología , Femenino , Humanos , Masculino , Síndrome Metabólico/epidemiología , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo
3.
J Hum Hypertens ; 23(5): 316-24, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19005476

RESUMEN

The GOOD survey investigated the global cardiometabolic risk profile in adult patients with hypertension across 289 sites in four European regions (Northwest, Mediterranean, Atlantic European Mainland and Central Europe). Demographic, lifestyle, clinical and laboratory data were collected from eligible patients (n=3370) during a single clinic visit. In Central Europe, represented by Hungary, 44% of the participants had type II diabetes compared with 33% in the Atlantic European Mainland, and 26% in the Northwest and the Mediterranean regions. The prevalence of metabolic syndrome was also significantly higher in Central Europe (68%) and the Atlantic European Mainland (60%) than in the Northwest and the Mediterranean regions (50 and 52%, respectively). Fasting blood glucose, total cholesterol and triglyceride levels were all highest in Central Europe compared with the other three regions (P<0.001). In the Atlantic European Mainland, more patients had uncontrolled blood pressure (80%) compared with the other three regions (70-71%). Declared alcohol consumption was highest in the Atlantic European Mainland and exercise lowest in Central Europe. The prevalence of congestive heart failure, left ventricular hypertrophy, coronary artery disease and stable/unstable angina was higher in Central Europe compared with the other regions, whereas a family history of premature stroke or myocardial infarction, stroke, coronary revascularization and transient ischaemic attacks was all highest in the Atlantic European Mainland. These data indicate that many hypertensive patients across Europe have multiple cardiometabolic risk factors with the prevalence higher in Central Europe and the Atlantic European Mainland compared with Northwest and Mediterranean regions.


Asunto(s)
Geografía , Hipertensión/epidemiología , Anciano , Consumo de Bebidas Alcohólicas/sangre , Consumo de Bebidas Alcohólicas/epidemiología , Consumo de Bebidas Alcohólicas/genética , Angina de Pecho/sangre , Angina de Pecho/epidemiología , Angina de Pecho/genética , Glucemia , Colesterol/sangre , Comorbilidad , Enfermedad de la Arteria Coronaria/sangre , Enfermedad de la Arteria Coronaria/epidemiología , Enfermedad de la Arteria Coronaria/genética , Estudios Transversales , Europa (Continente)/epidemiología , Femenino , Encuestas Epidemiológicas , Insuficiencia Cardíaca/sangre , Insuficiencia Cardíaca/epidemiología , Insuficiencia Cardíaca/genética , Humanos , Hipertensión/sangre , Hipertensión/genética , Hipertrofia Ventricular Izquierda/sangre , Hipertrofia Ventricular Izquierda/epidemiología , Hipertrofia Ventricular Izquierda/genética , Masculino , Síndrome Metabólico/sangre , Síndrome Metabólico/epidemiología , Síndrome Metabólico/genética , Persona de Mediana Edad , Linaje , Prevalencia , Factores de Riesgo , Triglicéridos/sangre
4.
Curr Med Res Opin ; 23(8): 1945-56, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17626713

RESUMEN

OBJECTIVES: ACTFAST-2 was designed to match the starting dose of a statin to the baseline low density lipoprotein-cholesterol (LDL-C) value, to allow high-risk European subjects to achieve LDL-C targets within 12 weeks with the initial dose or one up-titration. RESEARCH DESIGN AND METHODS: This was a 12-week, prospective, open-label trial that enrolled 610 high-risk subjects from 8 European countries. Subjects with LDL-C > 2.6 mmol/L (> 100 mg/dL), but < or = 5.7 mmol/L (< or = 220 mg/dL) were assigned a starting dose of atorvastatin (10, 20, 40, 80 mg/day) according to LDL-C level and status of statin use at baseline (either statin-free or statin-treated), with a single up-titration at 6 weeks if needed. RESULTS: At 12 weeks, 68.0% of subjects overall, including 73.5% of statin-free and 60.5% of statin-treated subjects, achieved LDL-C target (< 2.6 mmol/L (< 100 mg/dL). The total cholesterol/high density lipoprotein-cholesterol (TC/HDL-C) ratio target was achieved by 75.2% of subjects overall, including 78.1% of statin-free and 71.2% of statin-treated subjects. In the statin-free group, LDL-C decreased by a mean of 42%. In the statin-treated group, atorvastatin led to an additional 31% reduction in LDL-C over the statin used at baseline. Mean decreases in TC/HDL-C ratio were 30% and 20% in the statin-free and statin-treated groups, respectively. The incidence of AST/ALT greater than 3 times of upper limit of normal range in all patients was 0.8% and no rhabdomyolysis was reported. CONCLUSION: This study confirms that use of a flexible starting dose of atorvastatin allows the large majority of high-risk subjects to achieve their LDL-C target safely within 12 weeks with an initial dose or just a single up-titration.


Asunto(s)
Anticolesterolemiantes/uso terapéutico , LDL-Colesterol/sangre , Dislipidemias/tratamiento farmacológico , Ácidos Heptanoicos/uso terapéutico , Hipercolesterolemia/tratamiento farmacológico , Pirroles/uso terapéutico , Anciano , Anticolesterolemiantes/administración & dosificación , Anticolesterolemiantes/efectos adversos , Atorvastatina , Relación Dosis-Respuesta a Droga , Femenino , Ácidos Heptanoicos/administración & dosificación , Ácidos Heptanoicos/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Pirroles/administración & dosificación , Pirroles/efectos adversos
5.
J Hum Hypertens ; 21(10): 780-7, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17541390

RESUMEN

Patients with severe hypertension (>180/110 mm Hg) require large blood pressure (BP) reductions to reach recommended treatment goals (<140/90 mm Hg) and usually require combination therapy to do so. This 8-week, multicenter, randomized, double-blind, parallel-group study compared the tolerability and antihypertensive efficacy of the novel direct renin inhibitor aliskiren with the angiotensin converting enzyme inhibitor lisinopril in patients with severe hypertension (mean sitting diastolic blood pressure (msDBP)>or=105 mm Hg and <120 mm Hg). In all, 183 patients were randomized (2:1) to aliskiren 150 mg (n=125) or lisinopril 20 mg (n=58) with dose titration (to aliskiren 300 mg or lisinopril 40 mg) and subsequent addition of hydrochlorothiazide (HCTZ) if additional BP control was required. Aliskiren-based treatment (ALI) was similar to lisinopril-based treatment (LIS) with respect to the proportion of patients reporting an adverse event (AE; ALI 32.8%; LIS 29.3%) or discontinuing treatment due to AEs (ALI 3.2%; LIS 3.4%). The most frequently reported AEs in both groups were headache, nasopharyngitis and dizziness. At end point, ALI showed similar mean reductions from baseline to LIS in msDBP (ALI -18.5 mm Hg vs LIS -20.1 mm Hg; mean treatment difference 1.7 mm Hg (95% confidence interval (CI) -1.0, 4.4)) and mean sitting systolic blood pressure (ALI -20.0 mm Hg vs LIS -22.3 mm Hg; mean treatment difference 2.8 mm Hg (95% CI -1.7, 7.4)). Responder rates (msDBP<90 mm Hg and/or reduction from baseline>or=10 mm Hg) were 81.5% with ALI and 87.9% with LIS. Approximately half of patients required the addition of HCTZ to achieve BP control (ALI 53.6%; LIS 44.8%). In conclusion, ALI alone, or in combination with HCTZ, exhibits similar tolerability and antihypertensive efficacy to LIS alone, or in combination with HCTZ, in patients with severe hypertension.


Asunto(s)
Amidas/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Antihipertensivos/uso terapéutico , Fumaratos/uso terapéutico , Hipertensión/tratamiento farmacológico , Lisinopril/uso terapéutico , Sistema Renina-Angiotensina/efectos de los fármacos , Renina/antagonistas & inhibidores , Anciano , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
6.
Atherosclerosis ; 191(1): 135-46, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16643923

RESUMEN

AIMS: To investigate whether selecting the starting dose of atorvastatin according to baseline and target (<2.6 mmol/L) LDL-cholesterol (LDL-C) values would allow high-risk subjects to achieve target LDL-C concentration within 12 weeks, with the initial dose or a single uptitration. METHODS AND RESULTS: Twelve-week, prospective, open-label trial that enrolled 2117 high-risk subjects (statin-free [SF] or statin-treated [ST]). Subjects with LDL-C >2.6 mmol/L (100mg/dL) but

Asunto(s)
Anticolesterolemiantes/administración & dosificación , LDL-Colesterol/sangre , Ácidos Heptanoicos/administración & dosificación , Hipercolesterolemia/tratamiento farmacológico , Pirroles/administración & dosificación , Anciano , Atorvastatina , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Resultado del Tratamiento
7.
Int Angiol ; 24(2): 202-5, 2005 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15997226

RESUMEN

A 76-year-old man was admitted to our hospital with vertigo. Previously he had been extensively examined because of an increased erythrocyte sedimentation rate without any clinical symptoms. Physical examination revealed 60 mmHg blood pressure difference between the two arms. Color duplex ultrasound examination revealed bilateral extreme narrowing of the external carotid and axillobrachial artery with a dark, hypo-echoic halo around the lumen. This condition was recognized as a specific sign for giant cell arteritis (GCA), described originally in cases of temporal arteritis. The diagnosis was confirmed by biopsy of the temporal artery. In contrast to the typical cranial form of GCA -- our patient showed an unusual, bilateral large-vessel manifestation. The diagnosis was based on ultrasound images rather than on symptoms that characterize the well-known temporal form. This observation emphasizes the role of color duplex ultrasonography in the diagnosis and follow-up of GCA.


Asunto(s)
Arteria Braquial , Enfermedades de las Arterias Carótidas/diagnóstico por imagen , Enfermedades de las Arterias Carótidas/etiología , Arteria Carótida Externa , Arteritis de Células Gigantes/complicaciones , Arteritis de Células Gigantes/diagnóstico por imagen , Ultrasonografía Doppler en Color , Anciano , Humanos , Masculino
8.
J Hum Hypertens ; 18(8): 591-4, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15002002

RESUMEN

The aim of the project is to assess the quality and improve the preventive and curative practices at the primary care level in Hungary. A total of 50 general practitionaires were selected on a voluntary basis in Budapest, Hungary, and from them, 30 were randomized to the intervention (I) group and 20 to the reference (R) group. The members in the I group have been trained for the official hypertension guideline and their everyday work is monitored. Those in the R group have only been monitored to measure the efficacy of the training. In all, 10% from the known hypertensive persons (N=10,799) and 5% of the remaining (nonhypertensive) patients (N=60,341) were selected randomly from the GP's computer files and invited for screening investigation performed by trained medical students. They measured the blood pressure of patients, assessed the cardiovascular risk status and the quality of education of patients by standardized questionnaires. In total, 4083 patients were invited, but only 39.2% attended the screening visit. The prevalence of undetected hypertension was 34.6%. This prevalence was significantly higher in the older (>60 years: 46.8%) than in the younger (<50 years: 20.8%, P<0.0001) age group and it was higher in men (41.5%) than in women (30.1%, P<0.001). The proportion of H patients on drug treatment was 85.3% and the frequency of patients under effective blood pressure control (eg<140/90 mmHg) was 27.8%. Counselling to patients for a healthier lifestyle (exercise, smoking, alcohol consumption, diet) was very rare. In conclusion, our data represent the primary care of Budapest and may not be relevant to the whole country. As a consequence of this study, education of primary care physicians and patients is a must for further improvement of hypertension care.


Asunto(s)
Hipertensión/prevención & control , Adulto , Factores de Edad , Anciano , Antihipertensivos/uso terapéutico , Distribución de Chi-Cuadrado , Femenino , Guías como Asunto , Humanos , Hungría/epidemiología , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Objetivos Organizacionales , Médicos de Familia/educación , Prevalencia , Factores de Riesgo , Sociedades Médicas
10.
Eur Heart J ; 24(10): 946-55, 2003 May.
Artículo en Inglés | MEDLINE | ID: mdl-12714026

RESUMEN

AIMS: To investigate the safety and efficacy of bupropion sustained release (bupropion SR) in promoting abstinence from smoking in subjects with cardiovascular disease (CVD). METHODS: Six hundred twenty-nine subjects with CVD who smoked >/=10 cigarettes/day were randomised in a double-blind, multicentre study to receive bupropion SR (150 mg twice daily) or placebo for 7 weeks, with a follow-up of 52 weeks. Primary efficacy endpoint: continuous abstinence from smoking from weeks 4 to 7. Secondary endpoints: continuous abstinence (weeks 4-12, 4-26 and 4-52) and weekly point prevalence abstinence. All participants received brief motivational support. Safety was evaluated throughout the study. RESULTS: Continuous smoking abstinence rates from weeks 4 to 7 were significantly higher in subjects receiving bupropion SR compared with placebo (43 vs. 19%, odds ratio [OR]=3.27, 95% confidence interval [CI] 2.24-4.84; P<0.001). Continuous abstinence rates from weeks 4 to 26 and 4 to 52 continued to be more than double for bupropion SR compared with placebo (27 vs. 11%; 22 vs. 9%, P<0.001). Weekly point prevalence abstinence was significantly higher for participants who received bupropion SR compared with placebo at weeks 3, 7, 26 and 52 (P<0.001). In both groups, there were no clinically significant changes in blood pressure and heart rate throughout the treatment phase. Overall, 6% of the participants (n=36) discontinued study medication due to an adverse event (bupropion SR, n=17; placebo, n=19). CONCLUSIONS: After 7 weeks of bupropion SR treatment, more than twice as many smokers with CVD had quit smoking at 1 year compared with placebo. The safety profile of bupropion SR was similar to that previously observed in general smoking populations.


Asunto(s)
Bupropión/uso terapéutico , Enfermedades Cardiovasculares/complicaciones , Inhibidores de Captación de Dopamina/uso terapéutico , Cese del Hábito de Fumar/métodos , Prevención del Hábito de Fumar , Adulto , Anciano , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Fumar/efectos adversos , Resultado del Tratamiento
11.
J Int Med Res ; 31(6): 561-74, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-14708422

RESUMEN

This open-label, multicentre, multinational trial evaluated the efficacy and safety of telmisartan used alone or as add-on therapy in 2121 adults with mild-to-moderate essential hypertension. Patients received telmisartan 40-80 mg once daily for 12 weeks and could participate in the study for up to 96 weeks, or until a marketed supply of telmisartan became available. Mean change from baseline in mean seated trough diastolic blood pressure (DBP) after 12 weeks' treatment, the primary endpoint, was -11.8 mmHg in the intent-to-treat population. The corresponding mean change in mean seated trough systolic blood pressure (SBP) was -20.2 mmHg. Both changes were statistically significant. Mean DBP and SBP reductions were apparent from week 4 and maintained throughout the treatment period. Telmisartan was well tolerated; the most common adverse events were headache (6%) and dizziness (3%), and 10% of adverse events were considered drug-related. In conclusion, telmisartan is an effective and well-tolerated drug when used as monotherapy or add-on treatment in this broad population of patients.


Asunto(s)
Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Bencimidazoles/uso terapéutico , Benzoatos/uso terapéutico , Hipertensión/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Inhibidores de la Enzima Convertidora de Angiotensina/efectos adversos , Bencimidazoles/efectos adversos , Benzoatos/efectos adversos , Presión Sanguínea/efectos de los fármacos , Mareo/inducido químicamente , Femenino , Cefalea/inducido químicamente , Humanos , Masculino , Persona de Mediana Edad , Cooperación del Paciente , Telmisartán
15.
J Hypertens ; 18(6): 795-801, 2000 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10872566

RESUMEN

OBJECTIVE: To compare the efficacy and tolerability of angiotensin II (Ang II) antagonist losartan and the beta-blocker atenolol in the treatment of patients with isolated systolic hypertension (ISH) after 16 weeks of treatment. METHODS: A double-blind, randomized, multi-country study was carried out in 273 patients with ISH. Patients with a sitting systolic blood pressure (SiSBP) of 160-205 mmHg, and a sitting diastolic blood pressure (SiDBP) < 90 mmHg at screening and at placebo baseline were subjected to a 4-week placebo period and then randomly grouped to receive 50 mg losartan or 50 mg atenolol once daily for 16 weeks. At 8 and 12 weeks, patients not controlled (SiDBP > or = 160 mmHg) were given additional treatment of 12.5 mg hydrochlorothiazide (HCTZ) once daily. RESULTS: Similar significant reductions in SiSBPs (mean +/- SD) were obtained with 50 mg losartan and 50 mg atenolol, from 173.7 +/- 10.3 and 173.5 +/- 10.7 mmHg at baseline to 149.0 +/- 15.5 and 148.2 +/- 15.3 mmHg after 16 weeks of losartan or atenolol treatment respectively. Sixty-seven percent of the losartan-treated and 64% of the atenolol-treated patients remained on monotherapy throughout the study. Only 1.5% of the losartan-treated patients withdrew because of a clinical adverse event (CAE) compared with 7.2% in the atenolol-treatment group (P= 0.035). Drug-related CAEs were observed significantly more frequently with atenolol than with losartan treatment (20.3 versus 10.4%; P = 0.029). CONCLUSION: It is concluded that 50 mg losartan and 50 mg atenolol produced comparable reductions in SiSBP in patients with ISH but losartan was better tolerated. This is the first demonstration of the therapeutic value of selective Ang II receptor blockade with losartan in the treatment of ISH.


Asunto(s)
Antagonistas Adrenérgicos beta/uso terapéutico , Angiotensina II/antagonistas & inhibidores , Antihipertensivos/uso terapéutico , Atenolol/uso terapéutico , Hipertensión/tratamiento farmacológico , Losartán/uso terapéutico , Antagonistas Adrenérgicos beta/efectos adversos , Anciano , Antihipertensivos/efectos adversos , Atenolol/efectos adversos , Presión Sanguínea , Método Doble Ciego , Quimioterapia Combinada , Femenino , Humanos , Hidroclorotiazida/uso terapéutico , Hipertensión/fisiopatología , Losartán/efectos adversos , Masculino , Persona de Mediana Edad , Sístole , Resultado del Tratamiento
16.
Blood Press ; 9(2-3): 146-51, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-10855739

RESUMEN

The Study on COgnition and Prognosis in the Elderly (SCOPE) is a multi-centre, prospective, randomized, double-blind, parallel-group study. The primary objective of SCOPE is to assess the effect of the angiotensin II type 1 (AT1) receptor blocker, candesartan cilexetil 8-16 mg once daily, on major cardiovascular events in elderly patients (70-89 years of age) with mild hypertension (DBP 90-99 and/or SBP 160-179 mmHg). The secondary objectives of the study are to test the hypothesis that antihypertensive therapy can prevent cognitive decline (as measured by the Mini Mental State Examination, MMSE) and dementia, and to assess the effect of therapy on total mortality, myocardial infarction (MI), stroke, renal function, and hospitalization. A total of 4964 patients from 15 participating countries were recruited during the randomization phase of SCOPE, exceeding the target population of 4000. The mean age of the patients at enrolment was 76 years, the ratio of male to female patients was approximately 1:2, and 52% of patients were already being treated with an antihypertensive agent at enrolment. The majority of patients (88%) were educated to at least primary school level. At randomization, mean sitting blood pressure values were SBP 166 mmHg and DBP 90 mmHg, and the mean MMSE score was 28. Previous cardiovascular disease in the study population included myocardial infarction (4%), stroke (4%) and atrial fibrillation (4%). Men, more often than women, had a history of previous MI, stroke and atrial fibrillation. A greater percentage of men were smokers (13% vs 6% in women) and had attended university (11% vs 3% of women). Of the randomized patients, 21% were 80 years of age. In this age group smoking was less common (4% vs 10% for 70-79-year-olds) and fewer had attended university (4% vs 7% for 70-79-year-olds). The incidence of MI was similar in both age groups. However, stroke and atrial fibrillation had occurred approximately twice as frequently in the older patients. The patients' mean age at baseline was similar in the participating countries, and most countries showed the approximate 1:2 ratio for male to female patients. There was also little inter-country variation in terms of mean SBP, DBP or MMSE score. However, there was considerable regional variation in the percentage of patients on therapy prior to enrolment.


Asunto(s)
Envejecimiento/psicología , Antagonistas de Receptores de Angiotensina , Antihipertensivos/uso terapéutico , Bencimidazoles/uso terapéutico , Compuestos de Bifenilo/uso terapéutico , Enfermedades Cardiovasculares/prevención & control , Cognición/fisiología , Tetrazoles , Anciano , Anciano de 80 o más Años , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Trastornos del Conocimiento/prevención & control , Demencia/prevención & control , Método Doble Ciego , Femenino , Humanos , Incidencia , Masculino , Pronóstico , Receptor de Angiotensina Tipo 1 , Receptor de Angiotensina Tipo 2 , Factores de Riesgo , Caracteres Sexuales
18.
Blood Press ; 8(3): 177-83, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10595696

RESUMEN

The Study on COgnition and Prognosis in the Elderly (SCOPE) is a multicentre, prospective, randomized, double-blind, parallel-group study designed to compare the effects of candesartan cilexetil and placebo in elderly patients with mild hypertension. The primary objective of the study is to assess the effect of candesartan cilexetil on major cardiovascular events. The secondary objectives of the study are to assess the effect of candesartan cilexetil on cognitive function and on total mortality, cardiovascular mortality, myocardial infarction, stroke, renal function, hospitalization, quality of life and health economics. Male and female patients aged between 70 and 89 years, with a sitting systolic blood pressure (SBP) of 160-179 mmHg and/or diastolic blood pressure (DBP) of 90-99 mmHg, and a Mini-Mental State Examination (MMSE) score of 24 or above, are eligible for the study. The overall target study population is 4000 patients, at least 1000 of whom are also to be assessed for quality of life and health economics data. After an open run-in period lasting 1-3 months, during which patients are assessed for eligibility and those who are already on antihypertensive therapy at enrolment are switched to hydrochlorothiazide 12.5 mg o.d., patients are randomized to receive either candesartan cilexetil 8 mg once daily (o.d.) or matching placebo o.d. At subsequent study visits, if SBP remains >160 mmHg, or has decreased by <10 mmHg since the randomization visit, or DBP is >85 mmHg, study treatment is doubled to candesartan cilexetil 16 mg o.d. or two placebo tablets o.d. Recruitment was completed in January 1999. At that time 4964 patients had been randomized. All randomized patients will be followed for an additional 2 years. If the event rate is lower than anticipated, the follow-up will be prolonged.


Asunto(s)
Antagonistas de Receptores de Angiotensina , Antihipertensivos/uso terapéutico , Bencimidazoles/uso terapéutico , Compuestos de Bifenilo/uso terapéutico , Enfermedades Cardiovasculares/prevención & control , Cognición/efectos de los fármacos , Hipertensión/tratamiento farmacológico , Hipertensión/psicología , Tetrazoles , Anciano , Anciano de 80 o más Años , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/mortalidad , Método Doble Ciego , Femenino , Servicios de Salud/economía , Servicios de Salud/estadística & datos numéricos , Humanos , Hipertensión/complicaciones , Masculino , Pronóstico , Estudios Prospectivos , Calidad de Vida , Factores de Riesgo
19.
Brain Res Bull ; 49(5): 317-31, 1999 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-10452352

RESUMEN

The hypothesis and indirect evidence of imidazoline receptors has been promoted since some 15 years ago and it gave a substantial impetus for research in this field, resulting in a better understanding of neuronal and cardiovascular regulatory processes. The nomenclature of the imidazoline receptors has been accepted by international forums but no direct proof for the existence of these receptors has been published. Authors summarise the most important available data, including facts and doubts as far as the discovery, characterisation, and function of imidazoline receptors and their subtypes, the differences between imidazoline receptors and alpha-2 adrenoceptors, and also on their participation in regulatory processes.


Asunto(s)
Antihipertensivos/uso terapéutico , Neurología/tendencias , Receptores de Droga/metabolismo , Animales , Humanos , Receptores de Imidazolina , Ligandos , Transducción de Señal/fisiología
20.
Acta Pharm Hung ; 68(5): 294-306, 1998 Sep.
Artículo en Húngaro | MEDLINE | ID: mdl-9805816

RESUMEN

Due to several mechanism, meals may modify the pharmacokinetics of drug products, thereby eliciting to clinically significant food interaction. Food interactions with the drug substance and with the drug formulation should be distinguished. Food interaction of different drug products containing the same active ingredient can be various depending on the pharmaceutical formulation technology. Particularly, in the case of modified release products, the food/formulation interaction can play an important role in the development of food interaction. Well known example, that bioavailability of theophylline can be influenced in different way (either increased, decreased or unchanged) by concomitant intake of food in the case of different sustained release products. The role and methods of food interaction studies in the different kinds of drug development (new chemical entity, modified release products, generics) are reviewed. Prediction of food effect response on the basis of the physicochemical and pharmacokinetic characteristics of the drug molecule or formulations is discussed. The results of three food interaction studies carried out the products of EGIS Pharmaceuticals Ltd. are also reviewed. The pharmacokinetic parameters of theophyllin 400 mg retard tablet were practically the same in both fasting condition and administration after consumption of a high fat containing standard breakfast. The ingestion of a high fat containing breakfast, increased the AUC of nifedipine from 259.0 +/- 101.2 ng h/ml to 326.7 +/- 122.5 ng h/ml and Cmax from 34.5 +/- 15.9 ng/ml to 74.3 +/- 23.9 ng/ml in case of nifedipine 20 mg retard tablet, in agreement with the data of literature. The statistical evaluation indicated significant differences between the pharmacokinetic parameters in the case of two administrations (before and after meal). The effect of a high fat containing breakfast for a generic version of buspiron 10 mg tablet and the bioequivalence after food consumption were studied in a single-dose, three-way (test and reference products administered after consumption of standard breakfast, as well as test product in fasting condition), cross-over, food effect bioequivalence study. According to the results, the test product--which, in a former study proved to be bioequivalent with the reference product in fasting state--is bioequivalent with the reference product under feeding conditions and the food intake influenced the pharmacokinetics of the test tablets.


Asunto(s)
Buspirona/farmacocinética , Interacciones Alimento-Droga , Nifedipino/farmacocinética , Teofilina/farmacocinética , Estudios Cruzados , Grasas de la Dieta , Humanos , Tasa de Depuración Metabólica , Periodo Posprandial
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...