753 resultados para Cardiovascular Health


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A doença cardiovascular constitui a causa de morte mais relevante em toda a Europa, incluindo Portugal, e é atualmente considerada como uma junção de doença arterial coronária nas suas diversas apresentações clínicas, eventos cerebrovasculares, doença arterial periférica e insuficiência cardíaca. De modo a contribuir para o estudo da importância de uma intervenção baseada numa estratégia populacional integrada na promoção de estilos de vida saudáveis, a principal finalidade deste estudo consistiu em definir o perfil de risco cardiovascular tendo por base os dados de prevalência de alguns fatores de risco, numa amostra de adultos (792 de ambos os sexos), em várias regiões de Portugal Continental. Para tal foram: caraterizados os hábitos alimentares, o contexto sociodemográfico dos adultos; analisadas as correlações entre o peso, perímetro da cintura, índice de massa corporal e a pressão arterial para ambos os sexos. Os resultados revelaram uma prevalência do excesso de peso, de obesidade e das respetivas caraterísticas, como o aumento do perímetro abdominal, e do IMC, sugerindo um contínuo de risco de doença cardiovascular. Verificou-se também uma elevada prevalência de hipertensão nos sujeitos com excesso de peso, sugerindo a existência de um risco cardiovascular acrescido. Os resultados obtidos neste estudo sustentam a necessidade de serem desenvolvidos planos de intervenção que contribuam para a redução do risco cardiovascular nos adultos. Palavras-chave: Estilos de vida; Hipertensão arterial; Índice de Massa Corporal; Obesidade; Risco Cardiovascular.

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Vein grafts are still the most commonly used graft material in cardiovascular surgery and much effort has been spent in recent years on investigating the optimal harvesting technique. One other related topic of similar importance remained more or less an incidental one. The storage solutions of vein grafts following procurement and prior to implantation are, despite their assumed impact, a relatively neglected theme. There is no doubt that the endothelium plays a key role in long-term patency of vein grafts, but the effects of the different storage solutions on the endothelium remain unclear : In a review of the literature, we could find 20 specific papers that addressed the question, of which the currently available preservation solutions are superior, harmless, damaging or ineffective. The focus lies on saline and autologous whole blood. Besides these two storage media, novel or alternative solutions have been investigated with surprising findings. In addition, a few words will be spent on potential alternatives and novel solutions on the market. As there is currently no randomized clinical trial regarding saline versus autologous whole blood available, this review compares all previous studies and methods of analysis to provide a certain level of evidence on this topic. In summary, saline has negative effects on the endothelial layers and therefore may compromise graft patency. Related factors, such as distension pressure, may outbalance the initial benefit of autologous whole blood or storage solutions and intensify the harmful effects of warm saline. In addition, there is no uniform consent on the superiority of autologous whole blood for vein graft storage. This may open the door to alternatives such as the University of Wisconsin solution or one of the specific designed storage solutions like TiProtec™ or Somaluthion™. Whether these preservation solutions are superior or advantageous remains the subject of further studies.

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Shipping list no.: 95-0031-P.

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Shipping list no.: 87-541-P.

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"September 1976."

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The objectives of this study were to ascertain consumer knowledge and behaviour about hypertension and treatment and to compare these with health care providers' perceptions (of 'most' consumers). The design for the study was a problem detection study (PDS): focus groups and then survey. Focus groups and survey participants were convenience samples of consumers, doctors, nurses and pharmacists. The main outcome measures were agreement on a 5-point Likert scale with statements about consumers' knowledge and behaviour about high blood pressure and medication. The survey identified areas of consensus and disagreement between consumers and health providers. While general knowledge and concordance with antihypertensive therapy among consumers was good, consequences such as eye and kidney disease, interactions with herbal medicines, and how to deal with missing a dose were less well known. Side effects were a problem for over one-quarter of participants, and cost was a problem in continuing therapy. Half the consumers had not received sufficient written information. Providers overall disagreed that most consumers have an adequate understanding of the condition. They agreed that most consumers adhere to therapy and can manage medicines; and about their own profession's role in information provision and condition management. Consumers confirmed positive provider behaviour, suggesting opportunities for greater communication between providers about actions taken with their consumers. In conclusion, the PDS methodology was useful in identifying consumer opinions. Differences between consumer and provider responses were marked, with consumers generally rating their knowledge and behaviour above providers' ratings of 'most' consumers. There are clear gaps to be targeted to improve the outcomes of hypertension therapy.

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Australian Aborigines are experiencing an epidemic of renal and cardiovascular disease. In late 1995 we introduced a treatment program into the Tiwi community, which has a three- to fivefold increase in death rates and a recent annual incidence of treated ESRD of 2760 per million. Eligible for treatment were people with hypertension, diabetics with micro or overt albuminuria, and all people with overt albuminuria. Treatment centered around use of perindopril (Coversyl, Servier), with other agents added to reach BP goals; attempts to control glucose and lipid levels; and health education. Thirty percent of the adult population, or 267 people, were enrolled, with a mean follow up of 3.39 yr. Clinical parameters were followed every 6 mo, and rates of terminal endpoints were compared with those of 327 historical controls matched for baseline disease severity, followed in the pretreatment program era. There was a dramatic reduction in BP in the treatment group, which was sustained through 3 yr of treatment. Albuminuria and GFR stabilized or improved. Rates of natural deaths were reduced by an estimated 50% (P = 0.012); renal deaths were reduced by 57% (P = 0.038); and nonrenal deaths by 46% (P = 0.085). Survival benefit was suggested at all levels of overt albuminuria, and regardless of diabetes status, baseline BP, or prior administration of angiotensin converting enzyme inhibitors (ACEI). No significant benefit was apparent among people without overt albuminuria, nor among those with GFR less than 60 ml/min. An estimated 13 renal deaths and 10 nonrenal deaths were prevented, with the number-needed-to-treat to avoid one terminal event of only 11.6. Falling deaths and renal failure in the whole community support these estimates. The program was extremely cost-effective. Programs like this should be introduced to all high-risk communities as a matter of urgency.

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Background. Australian Aborigines living in remote areas have exceedingly high rates of renal failure together with increased cardiovascular morbidity and mortality. To examine the basis of this association, we studied markers of renal function and cardiovascular (CV) risk in a coastal Aboriginal community in a remote area of the Northern Territory of Australia. End-stage renal disease (ESRD) incidence rates in that community are 15 times the national non-Aboriginal rate and CV mortality rates in the region are increased 5-fold. Methods. A cross-sectional community survey was conducted. Markers of early renal disease examined included urine albumin/creatinine ratio (ACR), serum creatinine concentration and calculated glomerular filtration rate (GFR). CV risk markers included blood pressure as well as measures of glycaemia, diabetes and serum lipids. Results. The study group included 237 people, 58% of the adult population of the community. The crude prevalence of microalbuminuria (urine ACR: 3.4-33.9 g/mol, 30-299 mg/g) was 31% and of overt albuminuria (urine ACR: greater than or equal to34 g/mol, greater than or equal to300 mg/g), 13%. The prevalence of overt albuminuria increased with age, but the prevalence of microalbuminuria was greatest in the 45-54 year age group. Microalbuminuria was associated with increasing body mass index, whereas overt albuminuria was associated with increasing glycated haemoglobin (HbA1c) and systolic blood pressure and a history of diabetes. The prevalence of elevated serum creatinine concentration (greater than or equal to120 mumol/l) was 10%. GFR (calculated using the MDRD equation) was <60 ml/min/1.73m(2) in 12% and 60-79 ml/min/1.73 m(2) in a further 36% of the study population. Although many people with albuminuria had well preserved GFRs, mean GFR was lower in people with higher levels of albuminuria. Conclusions. The high prevalence of markers of renal disease in this community was consistent with their high rates of ESRD. The distribution of microalbuminuria suggested a 'cohort effect', representing a group who will progress to overt albuminuria. The powerful association of renal disease markers with CV risk factors confirms a strong link between renal and CV disease in the early, asymptomatic stages of each. Thus, pathologic albuminuria, in part, might be a manifestation of the metabolic/haemodynamic syndrome and both conditions might arise out of a common menu of risk factors. Hence, a single agenda of primary and secondary intervention may benefit both.