Your browser doesn't support javascript.
loading
: 20 | 50 | 100
1 - 8 de 8
1.
Arq Bras Cardiol ; 121(5): e20230650, 2024.
Article Pt, En | MEDLINE | ID: mdl-38747748

BACKGROUND: Early reperfusion therapy is acknowledged as the most effective approach for reducing case fatality rates in patients with ST-segment elevation myocardial infarction (STEMI). OBJECTIVE: Estimate the clinical and economic consequences of delaying reperfusion in patients with STEMI. METHODS: This retrospective cohort study evaluated mortality rates and the total expenses incurred by delaying reperfusion therapy among 2622 individuals with STEMI. Costs of in-hospital care and lost productivity due to death or disability were estimated from the perspective of the Brazilian Unified Health System indexed in international dollars (Int$) adjusted by purchase power parity. A p < 0.05 was considered statistically significant. RESULTS: Each additional hour of delay in reperfusion therapy was associated with a 6.2% increase (95% CI: 0.3% to 11.8%, p = 0.032) in the risk of in-hospital mortality. The overall expenses were 45% higher among individuals who received treatment after 9 hours compared to those who were treated within the first 3 hours, primarily driven by in-hospital costs (p = 0.005). A multivariate linear regression model indicated that for every 3-hour delay in thrombolysis, there was an increase in in-hospital costs of Int$497 ± 286 (p = 0.003). CONCLUSIONS: The findings of our study offer further evidence that emphasizes the crucial role of prompt reperfusion therapy in saving lives and preserving public health resources. These results underscore the urgent need for implementing a network to manage STEMI cases.


FUNDAMENTO: A terapia de reperfusão precoce é reconhecida como a abordagem mais eficaz para reduzir as taxas de letalidade de casos em pacientes com infarto do miocárdio com supradesnivelamento do segmento ST (IAMCSST). OBJETIVO: Estimar as consequências clínicas e econômicas do atraso da reperfusão em pacientes com IAMCSST. MÉTODOS: O presente estudo de coorte retrospectivo avaliou as taxas de mortalidade e as despesas totais decorrentes do atraso na terapia de reperfusão em 2.622 indivíduos com IAMCSST. Os custos de cuidados hospitalares e perda de produtividade por morte ou incapacidade foram estimados sob a perspectiva do Sistema Único de Saúde indexado em dólares internacionais (Int$) ajustados pela paridade do poder de compra. Foi considerado estatisticamente significativo p < 0,05. RESULTADOS: Cada hora adicional de atraso na terapia de reperfusão foi associada a um aumento de 6,2% (intervalo de confiança de 95%: 0,3% a 11,8%, p = 0,032) no risco de mortalidade hospitalar. As despesas gerais foram 45% maiores entre os indivíduos que receberam tratamento após 9 horas em comparação com aqueles que foram tratados nas primeiras 3 horas, impulsionados principalmente pelos custos hospitalares (p = 0,005). Um modelo de regressão linear multivariada indicou que para cada 3 horas de atraso na trombólise, houve um aumento nos custos hospitalares de Int$ 497 ± 286 (p = 0,003). CONCLUSÕES: Os achados do nosso estudo oferecem mais evidências que enfatizam o papel crucial da terapia de reperfusão imediata no salvamento de vidas e na preservação dos recursos de saúde pública. Estes resultados enfatizam a necessidade urgente de implementação de uma rede para gerir casos de IAMCSST.


Hospital Mortality , Myocardial Reperfusion , ST Elevation Myocardial Infarction , Time-to-Treatment , Humans , Female , Male , Retrospective Studies , ST Elevation Myocardial Infarction/economics , ST Elevation Myocardial Infarction/therapy , ST Elevation Myocardial Infarction/mortality , Middle Aged , Time Factors , Brazil , Aged , Time-to-Treatment/economics , Myocardial Reperfusion/economics , Treatment Outcome , Hospital Costs/statistics & numerical data , Thrombolytic Therapy/economics
2.
Clinics ; 77: 100087, 2022. tab, graf
Article En | LILACS-Express | LILACS | ID: biblio-1404317

Abstract Background: Transplant Renal Artery Stenosis (TRAS) is a recognized vascular complication after kidney transplantation. The overall risk predictors of TRAS are poorly understood. Methods: Retrospective analysis of patients with suspected TRAS (Doppler ultrasound PSV > 200 cm/s) who underwent angiographic study in a single center between 2007 and 2014. All patients with stenosis > 50% were considered with TRAS. Stenosis restricted in the body of the artery was also analyzed in a subgroup. Results: 274 patients were submitted to a renal angiography and 166 confirmed TRAS. TRAS group featured an older population (46.3 ± 11.0 vs. 40.9 ±14.2 years; p = 0.001), more frequent hypertensive nephropathy (30.1% vs. 15.7%; p = 0.01), higher incidence of Delayed Graft Function (DGF) (52.0% vs. 25.6%; p < 0.001) and longer Cold Ischemia Time (CIT) (21.5 ± 10.6 vs. 15.7 ± 12.9h; p < 0.001). In multivariable analyses, DGF (OR = 3.31; 95% CI 1.78-6.30; p < 0.0001) was independent risk factors for TRAS. DM and CIT showed a tendency towards TRAS. The compound discriminatory capacity of the multivariable model (AUC = 0.775; 95% CI 0.718-0.831) is significantly higher than systolic blood pressure and creatinine alone (AUC = 0.62; 95% CI 0.558-0.661). In body artery stenosis subgroup, DGF (OR = 1.86; 95% CI 1.04-3.36; p = 0.03) and Diabetes Mellitus (DM) (OR = 2.44; 95% CI 1.31-4.60; p = 0.005) were independent risk factors for TRAS. Conclusion: In our transplant population, DGF increased more than 3-fold the risk of TRAS. In the subgroup analysis, both DGF and DM increases the risk of body artery stenosis. The addition of other factors to hypertension and renal dysfunction may increase diagnostic accuracy.

3.
Nutr. metab. cardiovasc. dis ; 30(2): 254-264, Feb., 2020. tab., graf.
Article En | SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1052921

BACKGROUND AND AIM: Obesity-related decline in high-density lipoprotein (HDL) functions such as cholesterol efflux capacity (CEC) has supported the notion that this lipoprotein dysfunction may contribute for atherogenesis among obese patients. We investigated if potentially other HDL protective actions may be affected with weight gain and these changes may occur even before the obesity range in a cross-sectional analysis. METHODS AND RESULTS: Lipid profile, body mass index (BMI), biochemical measurements, and carotid intima-media thickness (cIMT) were obtained in this cross-sectional study with 899 asymptomatic individuals. Lipoproteins were separated by ultracentrifugation and HDL physical-chemical characterization, CEC, antioxidant activity, anti-inflammatory activity, HDL-mediated platelet aggregation inhibition were measured in a randomly-selected subgroup (n = 101). Individuals with increased HDL-C had an attenuated increase in cIMT with elevation of BMI (interaction effect ß = -0.054; CI 95% -0.0815, -0.0301). CEC, HDL-C, HDL size and HDL-antioxidant activity were negatively associated with cIMT. BMI was inversely correlated with HDL-mediated inhibition of platelet aggregation (Spearman's rho -0.157, p < 0.03) and CEC (Spearman's rho -0.32, p < 0.001), but surprisingly it was directly correlated with the antioxidant activity (Spearman's rho 0.194, p = 0.052). Thus, even in non-obese, non-diabetic individuals, increased BMI is associated with a wide change in protective functions of HDL, reducing CEC and increasing antioxidant activity. In these subjects, decreased HDL concentration, size or function are related to increased atherosclerotic burden. CONCLUSION: Our findings demonstrate that in non-obese, non-diabetic individuals, the increasing values of BMI are associated with impaired protective functions of HDL and concomitant increase in atherosclerotic burden. (AU)


Atherosclerosis , Cholesterol, HDL , Obesity
4.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 29(Suppl. 2b): 115-115, Jun. 2019.
Article Pt | SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1008872

INTRODUÇÃO. A obesidade se associa a declínio na capacidade de efluxo de colesterol (CEC) mediada por HDL. Embora esse dado tenha apoiado a noção de que a disfunção do HDL contribui para a aterogênese em pacientes obesos, a perda funcional da HDL também pode envolver outros domínios funcionais e se estabelecer mesmo antes dos valores limiares para obesidade, ou seja, ainda em valores compatíveis com sobrepeso. MÉTODOS. Perfil lipídico, índice de massa corporal (IMC), medidas bioquímicas e espessura médio-intimal (cIMT) foram obtidos neste estudo transversal com 899 indivíduos assintomáticos. Funções de HDL e caracterização físico-química de HDL foram medidas em um subgrupo (n=101). RESULTADOS. Foi identificada interação do IMC sobre a associação entre HDL-C e cIMT (ß=-1,8; p<0,0001). Enquanto que, de forma geral, o HDL-C reduzido foi associado ao aumento da cIMT, os indivíduos com níveis elevados de HDL-C apresentaram associação atenuada entre o IMC e cIMT. Foi encontrada uma associação negativa entre CEC e cIMT (ß=-0,2; p<0,047) e entre atividade antioxidante de HDL e cIMT (ß=-0,2; p<0,038) mesmo após ajuste para idade, sexo, IMC, HDL-C e insulina no plasma. O IMC foi inversamente associado à inibição da agregação plaquetária mediada por HDL (r=-0,2, p<0,03) e CEC (r=-0,3, p<0,001), mas diretamente associada à atividade antioxidante (r=0,2, p<0,047). Uma variável composta de CEC e atividade antioxidante transformadas em z-score permaneceu aproximadamente constante à medida em que o tamanho de HDL se altera em função do excesso de peso. Valores crescentes dessa variável composta foram associados à cIMT (R2 polinomial=0,26, p<0,001), sugerindo que a alteração do tamanho da HDL pode representar uma adaptação biológica bem-sucedida ao excesso de peso. CONCLUSÃO. O aumento do IMC está associado à disfunção global da HDL, que contribui para aumentar a carga aterosclerótica. Nesse cenário, a alteração do tamanho da HDL não justifica o aumento do desenvolvimento da doença aterosclerótica. (AU)


Weight Gain , Cholesterol, HDL
7.
Curr Med Res Opin ; 33(2): 239-251, 2017 02.
Article En | MEDLINE | ID: mdl-27776432

In the last two decades, statin therapy has proved to be the most potent isolated therapy for attenuation of cardiovascular risk. Its frequent use has been seen as one of the most important elements for the reduction of cardiovascular mortality in developed countries. However, the recurrent incidence of muscle symptoms in statin users raised the possibility of causal association, leading to a disease entity known as statin associated muscle symptoms (SAMS). Mechanistic studies and clinical trials, specifically designed for the study of SAMS have allowed a deeper understanding of the natural history and accurate incidence. This set of information becomes essential to avoid an unnecessary risk of severe forms of SAMS. At the same time, this concrete understanding of SAMS prevents overdiagnosis and an inadequate suspension of one of the most powerful prevention strategies of our times. In this context, the Luso-Latin American Consortium gathered all available information on the subject and presents them in detail in this document as the basis for the identification and management of SAMS.


Cardiovascular Diseases/prevention & control , Hydroxymethylglutaryl-CoA Reductase Inhibitors/adverse effects , Muscular Diseases/chemically induced , Humans , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Risk Factors
8.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 26(3): 180-189, jul.-set. 2016. tab
Article Pt | LILACS | ID: biblio-832403

Nas últimas duas décadas, comprovou-se que a terapia com estatinas é o instrumento isolado mais potente para atenuar o risco cardiovascular, e seu uso frequente foi enfatizado como um dos elementos mais importantes para reduzir a mortalidade cardiovascular nos países desenvolvidos. Uma incidência igualmente frequente de sintomas musculares em usuários de estatinas levanta a possibilidade de um nexo de causalidade, que leva a uma entidade patológica conhecida como sintomas musculares associados a estatinas (SMAS). Estudos e ensaios clínicos mecanicistas destinados a estudar os SMAS levaram a uma definição clara da sua história natural e incidência exata. Essa informação é essencial para evitar riscos desnecessários de formas graves de SMAS. Ao mesmo tempo, essa compreensão concreta dos SMAS evita o diagnóstico exagerado e a suspensão desnecessária de uma das mais poderosas estratégias de prevenção atuais. Nesse contexto, este artigo de revisão reuniu todas as informações disponíveis sobre o assunto, que são apresentadas em detalhe neste documento como a base da identificação e tratamento dos SMAS


In the last 2 decades, statin therapy has proved to be the most potent isolated instrument for attenuating cardiovascular risk, and its frequent use has been highlighted as one of the most important elements for reducing cardiovascular mortality in developed countries. An equally frequent incidence of muscle symptoms in statin users raises the possibility of a causal link, leading to a disease entity known as statin-associated muscle symptoms (SAMS). Mechanistic studies and clinical trials designed to the study of SAMS have led to a clear definition of its natural history and accurate incidence. This information is vital for avoiding unnecessary risk of severe forms of SAMS. At the same time, this concrete understanding of SAMS prevents over-diagnosis and unnecessary suspension of one of the most powerful prevention strategies available today. In this context, this review has gathered all the available information on the issue, which is presented in detail, in this document, as the basis for the identification and management of SAMS


Humans , Signs and Symptoms , Therapeutics , Hydroxymethylglutaryl-CoA Reductase Inhibitors/administration & dosage , Hypolipidemic Agents/therapeutic use , Lovastatin/adverse effects , Risk Factors , Simvastatin/adverse effects , Creatine Kinase , Atorvastatin/adverse effects
...