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1.
Ann Med ; 56(1): 2343890, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38738416

RESUMO

BACKGROUND: The Covid-19 pandemic has affected patients with end-stage kidney disease (ESKD). Whether dialysis parameters have a prognostic value in ESKD patients with Covid-19 remains unclear. MATERIALS AND METHODS: We retrospectively evaluated clinical characteristics, blood pressure (BP) and dialysis parameters in ESKD patients undergoing maintenance outpatient hemodialysis, with (Covid-ESKD) and without (No-Covid-ESKD) Covid-19, at four Brazilian hemodialysis facilities. The Covid-ESKD (n = 107; 54% females; 60.8 ± 17.7 years) and No-Covid-ESKD (n = 107; 62% females; 58.4 ± 14.6 years) groups were matched by calendar time. The average BP and dialysis parameters were calculated during the pre-infection, acute infection, and post-infection periods. The main outcomes were Covid-19 hospitalization and all-cause mortality. RESULTS: Covid-ESKD patients had greater intradialytic and postdialysis systolic BP and lower predialysis weight, postdialysis weight, ultrafiltration rate, and interdialytic weight gain during acute-illness compared to 1-week-before-illness, while these changes were not observed in No-Covid-ESKD patients. After 286 days of follow-up (range, 276-591), there were 18 Covid-19-related hospitalizations and 28 deaths among Covid-ESKD patients. Multivariable logistic regression analysis showed that increases in predialysis systolic BP from 1-week-before-illness to acute-illness (OR, 95%CI = 1.06, 1.02-1.10; p = .004) and Covid-19 vaccination (OR, 95%CI = 0.16, 0.04-0.69; p = .014) were associated with hospitalization in Covid-ESKD patients. Multivariable Cox-regression analysis showed that Covid-19-related hospitalization (HR, 95%CI = 5.17, 2.07-12.96; p < .001) and age (HR, 95%CI = 1.05, 1.01-1.08; p = .008) were independent predictors of all-cause mortality in Covid-ESKD patients. CONCLUSION: Acute Covid-19 illness is associated with variations in dialysis parameters of volume status in patients with ESKD. Furthermore, increases in predialysis BP during acute Covid-19 illness are associated with an adverse prognosis in Covid-ESKD patients.


Dialysis parameters were influenced by SARS-CoV-2 infection and may have prognostic value in patients with Covid-19.Increases in blood pressure during acute Covid-19 illness and the lack of vaccination for Covid-19 were predictors of hospitalization for Covid-19.Hospitalization for Covid-19 and age were independent risk factors for all-cause death.


Assuntos
COVID-19 , Falência Renal Crônica , Diálise Renal , SARS-CoV-2 , Humanos , COVID-19/complicações , COVID-19/mortalidade , COVID-19/epidemiologia , COVID-19/terapia , Feminino , Pessoa de Meia-Idade , Masculino , Falência Renal Crônica/terapia , Falência Renal Crônica/complicações , Falência Renal Crônica/mortalidade , Falência Renal Crônica/epidemiologia , Diálise Renal/estatística & dados numéricos , Estudos Retrospectivos , Prognóstico , Idoso , Brasil/epidemiologia , Adulto , Hospitalização/estatística & dados numéricos , Pressão Sanguínea
2.
Arq Bras Cardiol ; 121(4): e20240113, 2024 Feb.
Artigo em Português, Inglês | MEDLINE | ID: mdl-38695411
6.
Front Cardiovasc Med ; 10: 1254933, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37795487

RESUMO

Introduction: Hypertension (HT) remains the leading cause of death worldwide. In Brazil it is estimated that 35% of the adult population has HT and that about 20% of these have blood pressure values within the targets recommended for the reduction of cardiovascular risk. There are some data that point to different control rates in patients treated by cardiologists in public and private referral center and this is an important point to be investigated and discussed. Objective: To compare sociodemographic characteristics, body mass index (BMI), antihypertensive (AH) drugs, blood pressure (BP) and control rate in public (PURC) and private (PRRC) referral centers. Methodology: A cross-sectional multicenter study that analyzed data from hypertensive patients assisted by the PURC (one in Midwest Region and other in Northeast region) and PRRC (same distribution). Variables analyzed: sex, age, BMI, classes, number of AH used and mean values of systolic and diastolic BP by office measurement and home blood pressure measurement (HBPM). Uncontrolled hypertension (HT) phenotypes and BP control rates were assessed. Descriptive statistics and χ2 tests or unpaired t-tests were performed. A significance level of p < 0.05 was considered. Results: A predominantly female (58.9%) sample of 2.956 patients and a higher prevalence of obesity in PURC (p < 0.001) and overweight in PRRC (p < 0.001). The mean AH used was 2.9 ± 1.5 for PURC and 1.4 ± 0.7 for PRRC (p < 0.001). Mean systolic and diastolic BP values were higher in PURC as were rates of uncontrolled HT of 67.8% and 47.6% (p < 0.001) by office measurement and 60.4% and 35.3% (p < 0.001) by HBPM in PURC and PRRC, respectively. Conclusion: Patients with HT had a higher prevalence of obesity in the PURC and used almost twice as many AH drugs. BP control rates are worse in the PURC, on average 15.3 mmHg and 12.1 mmHg higher than in the PRRC by office measurement.

7.
Arq Bras Cardiol ; 120(8): e20220863, 2023 07.
Artigo em Inglês, Português | MEDLINE | ID: mdl-37586005

RESUMO

BACKGROUND: It is known that around 30% of patients have higher blood pressure (BP) values when examined at the office than at home. Worldwide, only 35% of patients with hypertension undergoing treatment have reached their BP targets. OBJECTIVE: To provide epidemiological data on BP control in the offices of a sample of Brazilian cardiologists, considering office and home BP measurement. METHODS: This is a cross-sectional analysis of patients with a hypertension diagnosis and undergoing antihypertensive treatment, with controlled BP or not. BP was assayed in the office by a medical professional and at home using home BP monitoring (HBPM). The association between categorical variables was verified using the chi-square test (p<0.05). RESULTS: The study included 2540 patients, with a mean age of 59.7 ± 15.2 years. Most patients were women (62%; n=1575). Prevalence rates of 15% (n=382) for uncontrolled white coat hypertension and 10% (n=253) for uncontrolled masked hypertension were observed. The rate of BP control in the office was 56.3% and at home, 61%. Meanwhile, 46.4% of the patients had controlled BP in and outside of the office. Greater control was observed in women and in the 49-61 years age group. Considering the new DBHA 2020 threshold for home BP control, the control rate was 42.4%. CONCLUSION: BP control in the offices of a sample of Brazilian cardiologists was 56.3%; this rate was 61% when BP was measured at home and 46.4% when considering both the office and home.


FUNDAMENTO: Sabe-se que em torno de 30% dos pacientes apresentam valores de pressão arterial (PA) mais elevados quando examinados no consultório do que em suas residências. No mundo, admite-se que apenas 35% dos hipertensos já tratados tenham alcançado meta pressórica. OBJETIVO: Fornecer dados epidemiológicos sobre o controle da PA nos consultórios, em uma amostra de cardiologistas brasileiros, avaliado pela medida de consultório e monitorização residencial da pressão arterial (MRPA). MÉTODOS: Análise transversal. Observou-se pacientes com diagnóstico de hipertensão arterial, em tratamento anti-hipertensivo, podendo ou não estar com a PA controlada. A PA foi verificada no consultório por profissional médico, e no domicílio através da MRPA. A associação entre variáveis categóricas se deu por meio do teste do qui-quadrado (p < 0,05). RESULTADOS: Foram incluídos 2.540 pacientes, com idade média 59,7 ± 15,2 anos. A maioria dos pacientes eram mulheres (62%; n = 1.575). O estudo mostrou uma prevalência de 15% (n = 382) de hipertensão do avental branco não controlada, e 10% (n = 253) de hipertensão mascarada não controlada. A taxa de controle da PA no consultório foi 56,3%, e no domicílio, de 61%; 46,4% dos pacientes tiveram PA controlada no consultório e fora dele. Observou-se maior controle no sexo feminino e na faixa etária 49-61 anos. Observando o controle domiciliar com o novo ponto de corte das Diretrizes Brasileiras de Hipertensão Arterial de 2020, a taxa de controle foi de 42,4%. CONCLUSÃO: O controle pressórico nos consultórios em uma amostra de cardiologistas brasileiros foi de 56,3%; 61% quando a PA foi obtida no domicílio, e 46,4% quando o controle foi observado tanto no consultório como no domicílio.


Assuntos
Hipertensão , Hipertensão Mascarada , Hipertensão do Jaleco Branco , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Masculino , Estudos Transversais , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Hipertensão do Jaleco Branco/diagnóstico , Determinação da Pressão Arterial , Anti-Hipertensivos/uso terapêutico , Monitorização Ambulatorial da Pressão Arterial , Hipertensão Mascarada/diagnóstico , Pressão Sanguínea
9.
EClinicalMedicine ; 60: 102004, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37223666

RESUMO

Background: COVID-19 progression is associated with an increased risk of arterial and venous thrombosis. Randomised trials have demonstrated that anticoagulants reduce the risk of thromboembolism in hospitalised patients with COVID-19, but a benefit of routine anticoagulation has not been demonstrated in the outpatient setting. Methods: We conducted a randomised, open-label, controlled, multicentre study, evaluating the use of rivaroxaban in mild or moderate COVID-19 patients. Adults ≥18 years old, with probable or confirmed SARS-CoV-2 infection, presenting within ≤7 days from symptom onset with no clear indication for hospitalization, plus at least 2 risk factors for complication, were randomised 1:1 either to rivaroxaban 10 mg OD for 14 days or to routine care. The primary efficacy endpoint was the composite of venous thromboembolic events, need of mechanical ventilation, acute myocardial infarction, stroke, acute limb ischemia, or death due to COVID-19 during the first 30 days. ClinicalTrials.gov: NCT04757857. Findings: Enrollment was prematurely stopped due to sustained reduction in new COVID-19 cases. From September 29th, 2020, through May 23rd, 2022, 660 patients were randomised (median age 61 [Q1-Q3 47-69], 55.7% women). There was no significant difference between rivaroxaban and control in the primary efficacy endpoint (4.3% [14/327] vs 5.8% [19/330], RR 0.74; 95% CI: 0.38-1.46). There was no major bleeding in the control group and 1 in the rivaroxaban group. Interpretation: On light of these findings no decision can be made about the utility of rivaroxaban to improve outcomes in outpatients with COVID-19. Metanalyses data provide no evidence of a benefit of anticoagulant prophylaxis in outpatients with COVID-19. These findings were the result of an underpowered study, therefore should be interpreted with caution. Funding: COALITION COVID-19 Brazil and Bayer S.A.

10.
Ren Fail ; 45(1): 2163903, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36637019

RESUMO

BACKGROUND AND OBJECTIVE: Thiazide diuretics are first-line drugs for the treatment of hypertension, but hypertension treatment guidelines have systematically discouraged their use in patients with advanced chronic kidney disease (CKD). For the first time, a systematic review and random-effects meta-analysis were performed to assess the effectiveness of thiazides and thiazide-like diuretics to treat hypertension in patients with stages 3b, 4, and 5 CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: A systematic review and random-effects meta-analysis that included a literature search using the following databases were performed: MEDLINE through PubMed, Cochrane Database of Systematic Reviews (CDSR) and Cochrane Central Register of Controlled Trials (CENTRAL) through the Cochrane Library, Embase, and ISI - Web of Science (all databases). Prospective studies that evaluated the effectiveness of thiazide and thiazide-like diuretics in individuals with a GFR < 45 mL/min/1.73 m2 were included. RESULTS: Five clinical trials, totaling 214 participants, were included, and the mean GFR ranged from 13.0 ± 5.9 mL/min/1.73 m2 to 26.8 ± 8.8 mL/min/1.73 m2. There was evidence of a reduction in mean blood pressure and in GFR, as well as in fractional sodium excretion and fractional chloride excretion. CONCLUSION: Thiazide and thiazide-like diuretics seem to maintain their effectiveness in lowering blood pressure in patients with advanced chronic kidney disease. These findings should spur new prospective randomized trials and spark discussions, particularly about upcoming hypertension guidelines.


Assuntos
Hipertensão , Insuficiência Renal Crônica , Humanos , Diuréticos/farmacologia , Diuréticos/uso terapêutico , Tiazidas/uso terapêutico , Tiazidas/farmacologia , Estudos Prospectivos , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea , Hipertensão/tratamento farmacológico , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico
11.
Hypertens Res ; 46(3): 742-750, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36380200

RESUMO

This study compared the ability of guideline-proposed office blood pressure (OBP) screening thresholds [European Society of Hypertension (ESH) guidelines: 130/85 mmHg for individuals with an OBP < 140/90 mmHg; American College of Cardiology/American Heart Association (ACC/AHA) guidelines: 120/75 mmHg for individuals with an OBP < 130/80 mmHg] and novel screening scores to identify normotensive individuals at high risk of having masked hypertension (MH) in an office setting. We cross-sectionally evaluated untreated participants with an OBP < 140/90 mmHg (n = 22,266) and an OBP < 130/80 mmHg (n = 10,005) who underwent home blood pressure monitoring (HBPM) (derivation cohort) from 686 Brazilian sites. MH was defined according to criteria suggested by the ESH (OBP < 140/90 mmHg; HBPM ≥ 135/85 mmHg), Brazilian Society of Cardiology (BSC) (OBP < 140/90 mmHg; HBPM ≥ 130/80 mmHg) and ACC/AHA (OBP < 130/80 mmHg; HBPM ≥ 130/80 mmHg). Scores were generated from multivariable logistic regression coefficients between MH and clinical variables (OBP, age, sex, and BMI). Considering the ESH, BSC, and ACC/AHA criteria, 17.2%, 38.5%, and 21.2% of the participants had MH, respectively. Guideline-proposed OBP screening thresholds yielded area under curve (AUC) values of 0.640 (for ESH criteria), 0.641 (for BSC criteria), and 0.619 (for ACC/AHA criteria) for predicting MH, while scores presented as continuous variables or quartiles yielded AUC values of 0.700 and 0.688 (for ESH criteria), 0.720 and 0.709 (for BSC criteria), and 0.671 and 0.661 (for ACC/AHA criteria), respectively. Further analyses performed with alternative untreated participants (validation cohort; n = 2807 with an OBP < 140/90 mmHg; n = 1269 with an OBP < 130/80 mmHg) yielded similar AUC values. In conclusion, the accuracy of guideline-proposed OBP screening thresholds in identifying individuals at high risk of having MH in an office setting is limited and is inferior to that yielded by scores derived from simple clinical variables.


Assuntos
Hipertensão , Hipertensão Mascarada , Estados Unidos , Humanos , Hipertensão Mascarada/diagnóstico , Monitorização Ambulatorial da Pressão Arterial , Pressão Sanguínea , Determinação da Pressão Arterial
12.
Sleep Breath ; 27(2): 765-770, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35538181

RESUMO

PURPOSE: To evaluate arterial stiffness, a predictor of vascular damage was assessed by means of pulse wave velocity (PWV) in patients with chronic obstructive pulmonary disease (COPD) and comorbid obstructive sleep apnea (OSA), namely overlap syndrome (OS). METHODS: Consecutive stable patients with COPD were evaluated for OSA by means of overnight polysomnography in the laboratory. A clinical assessment was performed according to a strict protocol, including two COPD questionnaires: the COPD assessment test and the modified Medical Research Council scale. COPD severity was graded according to the guidelines of the Global Initiative for Chronic Obstructive Lung Disease. Arterial stiffness was assessed by means of PWV, using a standard technique. RESULTS: Of 102 patients with COPD, 51 had associated OSA. The OS group had more men than the COPD group (73% vs. 47%, respectively; p < 0.01). Both groups had similar ages (66.2 ± 9.2 years vs. 69.6 ± 10.7, p = 0.09) and airflow limitation (p = 0.37). Hypertension was found in 22% of COPD patients, as opposed to 17% patients in the OS group (p = 0.29). High PWV values were present in 42% of the patients. Patients with COPD and OS had the same PWV values (9.8 vs. 10.5 m/s, p = 0.34). There were no differences in central blood pressure, peripheral blood pressure, and augmentation index between the two groups (p > 0.05). CONCLUSION: High PWV values were frequently observed in patients with COPD. However, there was no difference in PWV between patients with OS and those with COPD alone.


Assuntos
Hipertensão , Doença Pulmonar Obstrutiva Crônica , Apneia Obstrutiva do Sono , Rigidez Vascular , Masculino , Humanos , Rigidez Vascular/fisiologia , Análise de Onda de Pulso , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Doença Pulmonar Obstrutiva Crônica/complicações , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/diagnóstico , Apneia Obstrutiva do Sono/epidemiologia , Síndrome
15.
Arq. bras. cardiol ; 120(8): e20220863, 2023. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1447330

RESUMO

Resumo Fundamento Sabe-se que em torno de 30% dos pacientes apresentam valores de pressão arterial (PA) mais elevados quando examinados no consultório do que em suas residências. No mundo, admite-se que apenas 35% dos hipertensos já tratados tenham alcançado meta pressórica. Objetivo Fornecer dados epidemiológicos sobre o controle da PA nos consultórios, em uma amostra de cardiologistas brasileiros, avaliado pela medida de consultório e monitorização residencial da pressão arterial (MRPA). Métodos Análise transversal. Observou-se pacientes com diagnóstico de hipertensão arterial, em tratamento anti-hipertensivo, podendo ou não estar com a PA controlada. A PA foi verificada no consultório por profissional médico, e no domicílio através da MRPA. A associação entre variáveis categóricas se deu por meio do teste do qui-quadrado (p < 0,05). Resultados Foram incluídos 2.540 pacientes, com idade média 59,7 ± 15,2 anos. A maioria dos pacientes eram mulheres (62%; n = 1.575). O estudo mostrou uma prevalência de 15% (n = 382) de hipertensão do avental branco não controlada, e 10% (n = 253) de hipertensão mascarada não controlada. A taxa de controle da PA no consultório foi 56,3%, e no domicílio, de 61%; 46,4% dos pacientes tiveram PA controlada no consultório e fora dele. Observou-se maior controle no sexo feminino e na faixa etária 49-61 anos. Observando o controle domiciliar com o novo ponto de corte das Diretrizes Brasileiras de Hipertensão Arterial de 2020, a taxa de controle foi de 42,4%. Conclusão O controle pressórico nos consultórios em uma amostra de cardiologistas brasileiros foi de 56,3%; 61% quando a PA foi obtida no domicílio, e 46,4% quando o controle foi observado tanto no consultório como no domicílio.


Abstract Background It is known that around 30% of patients have higher blood pressure (BP) values when examined at the office than at home. Worldwide, only 35% of patients with hypertension undergoing treatment have reached their BP targets. Objective To provide epidemiological data on BP control in the offices of a sample of Brazilian cardiologists, considering office and home BP measurement. Methods This is a cross-sectional analysis of patients with a hypertension diagnosis and undergoing antihypertensive treatment, with controlled BP or not. BP was assayed in the office by a medical professional and at home using home BP monitoring (HBPM). The association between categorical variables was verified using the chi-square test (p<0.05). Results The study included 2540 patients, with a mean age of 59.7 ± 15.2 years. Most patients were women (62%; n=1575). Prevalence rates of 15% (n=382) for uncontrolled white coat hypertension and 10% (n=253) for uncontrolled masked hypertension were observed. The rate of BP control in the office was 56.3% and at home, 61%. Meanwhile, 46.4% of the patients had controlled BP in and outside of the office. Greater control was observed in women and in the 49-61 years age group. Considering the new DBHA 2020 threshold for home BP control, the control rate was 42.4%. Conclusion BP control in the offices of a sample of Brazilian cardiologists was 56.3%; this rate was 61% when BP was measured at home and 46.4% when considering both the office and home.

16.
Arq Bras Cardiol ; 119(4): 604-615, 2022 10.
Artigo em Inglês, Português | MEDLINE | ID: mdl-36287415

RESUMO

Biological aging occurs as a result of the interaction between genetics, chronological age and external factors. It is the basis for new concepts of vascular aging, whose progression is determined by the difference between biological and chronological age. From the structural point of view, the effects of vascular aging are more evident in the tunica media of large elastic arteries, marked by increased arterial stiffness, lumen dilation and wall thickness. These effects are described in the continuum of cardiovascular aging (proposed by Dzau in 2010), in which the progressive steps of microvasculature lesions of the heart, kidney and brain are initiated from the aging process. The increase of arterial stiffness can be detected by several non-invasive methods. Cardiovascular events have been traditionally described using scores that combine conventional risk factors for atherosclerosis. In the classic cardiovascular continuum (Dzau, 2006), to determine the exact contribution of each risk factor is challenging; however, since arterial stiffness reflects both early and cumulative damage of these cardiovascular risk factors, it is an indicator of the actual damage to the arterial wall. This article provides a general overview of pathophysiological mechanisms, arterial structural changes, and hemodynamic consequences of arterial stiffness; non-invasive methods for the assessment of arterial stiffness and of central blood pressure; the cardiovascular aging continuum, and the application of arterial stiffness in cardiovascular risk stratification.


O envelhecimento biológico é reflexo da interação entre genética, idade cronológica e fatores externos; é a base para novos conceitos em envelhecimento vascular, cuja progressão é determinada pela diferença entre idade biológica e cronológica. Do ponto de vista estrutural, os efeitos do envelhecimento vascular são mais evidentes na camada média das grandes artérias elásticas e resultam em aumento da rigidez arterial, da dilatação do lúmen e da espessura da parede. Esses efeitos são descritos no continuum de envelhecimento cardiovascular (proposto por Dzau em 2010) em que as etapas progressivas de lesões da microvasculatura de coração, rins e cérebro, têm início a partir do processo de envelhecimento. O aumento da rigidez arterial pode ser verificado de forma não invasiva por vários métodos. Os eventos cardiovasculares têm sido tradicionalmente previstos utilizando escores que combinam fatores de risco convencionais para aterosclerose. No continuum cardiovascular clássico (Dzau, 2006), é desafiador avaliar o peso exato da contribuição de cada fator de risco; entretanto, por refletir o dano precoce e cumulativo desses fatores de riscos cardiovascular, a rigidez arterial reflete o verdadeiro dano à parede arterial. Este artigo fornece uma visão geral dos mecanismos da fisiopatogenia, alterações estruturais das artérias e consequências hemodinâmicas do envelhecimento arterial; métodos não invasivos para a avaliação da rigidez arterial e da medida central da pressão arterial; o continuum de envelhecimento cardiovascular, e aplicação do conceito de rigidez arterial na estratificação de risco cardiovascular.


Assuntos
Doenças Cardiovasculares , Rigidez Vascular , Humanos , Doenças Cardiovasculares/etiologia , Artérias , Túnica Média , Fatores de Risco , Envelhecimento
17.
Arq. bras. cardiol ; 119(4): 604-615, Oct. 2022. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1403361

RESUMO

Resumo O envelhecimento biológico é reflexo da interação entre genética, idade cronológica e fatores externos; é a base para novos conceitos em envelhecimento vascular, cuja progressão é determinada pela diferença entre idade biológica e cronológica. Do ponto de vista estrutural, os efeitos do envelhecimento vascular são mais evidentes na camada média das grandes artérias elásticas e resultam em aumento da rigidez arterial, da dilatação do lúmen e da espessura da parede. Esses efeitos são descritos no continuum de envelhecimento cardiovascular (proposto por Dzau em 2010) em que as etapas progressivas de lesões da microvasculatura de coração, rins e cérebro, têm início a partir do processo de envelhecimento. O aumento da rigidez arterial pode ser verificado de forma não invasiva por vários métodos. Os eventos cardiovasculares têm sido tradicionalmente previstos utilizando escores que combinam fatores de risco convencionais para aterosclerose. No continuum cardiovascular clássico (Dzau, 2006), é desafiador avaliar o peso exato da contribuição de cada fator de risco; entretanto, por refletir o dano precoce e cumulativo desses fatores de riscos cardiovascular, a rigidez arterial reflete o verdadeiro dano à parede arterial. Este artigo fornece uma visão geral dos mecanismos da fisiopatogenia, alterações estruturais das artérias e consequências hemodinâmicas do envelhecimento arterial; métodos não invasivos para a avaliação da rigidez arterial e da medida central da pressão arterial; o continuum de envelhecimento cardiovascular, e aplicação do conceito de rigidez arterial na estratificação de risco cardiovascular.


Abstract Biological aging occurs as a result of the interaction between genetics, chronological age and external factors. It is the basis for new concepts of vascular aging, whose progression is determined by the difference between biological and chronological age. From the structural point of view, the effects of vascular aging are more evident in the tunica media of large elastic arteries, marked by increased arterial stiffness, lumen dilation and wall thickness. These effects are described in the continuum of cardiovascular aging (proposed by Dzau in 2010), in which the progressive steps of microvasculature lesions of the heart, kidney and brain are initiated from the aging process. The increase of arterial stiffness can be detected by several non-invasive methods. Cardiovascular events have been traditionally described using scores that combine conventional risk factors for atherosclerosis. In the classic cardiovascular continuum (Dzau, 2006), to determine the exact contribution of each risk factor is challenging; however, since arterial stiffness reflects both early and cumulative damage of these cardiovascular risk factors, it is an indicator of the actual damage to the arterial wall. This article provides a general overview of pathophysiological mechanisms, arterial structural changes, and hemodynamic consequences of arterial stiffness; non-invasive methods for the assessment of arterial stiffness and of central blood pressure; the cardiovascular aging continuum, and the application of arterial stiffness in cardiovascular risk stratification.

20.
J Clin Hypertens (Greenwich) ; 24(7): 814-824, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35770852

RESUMO

Uncontrolled hypertension has a high prevalence and is related to numerous negative health outcomes. This study aimed to investigate the factors associated with the lack of blood pressure control in hypertensive Brazilians treated in public and private services. This is an analytical, multicentric, and national cross-sectional study, carried out with adult hypertensive patients, monitored in 45 outpatient clinics (September 2013 to October 2015) in a prospective record interview, clinical, and anthropometric assessment. Outcome variables included uncontrolled pressure (systolic blood pressure ≥ 140 mmHg and/or diastolic blood pressure ≥ 90 mmHg). Simple and multiple logistic regression analyses were performed. Two thousand six hundred forty-three participants were assessed with a mean age of 61.6 ± 11.9 years, 55.7% of women, and 46.4% with uncontrolled blood pressure (BP). The following were associated with uncontrolled BP: age over 60 years (OR: 1.31 [1.11-1.55]); practice of irregular physical activity (OR: 1.28 [1.06-1.55]); attending the emergency room for hypertensive crises in the last six months (OR: 1.80 [1.46-2.22]); increased body mass index (OR: 1.02 [1.01-1.04]); low adherence to drug treatment (OR: 1.22 [1.04-1.44]) and menopause (OR: 1.36 [1.07-1.72]). The following were negatively associated: fruit consumption (OR: 0.90 [0.85-0.94]); presence of dyslipidemia (OR: 0.75 [0.64-0.89]), acute myocardial infarction (OR: 0.59 [0.46-0.76]), and peripheral arterial disease (OR: 0.52 [0.34-0.78]). Factors associated with difficult-to-control blood pressure are the same that increase the risk for hypertension, while the presence of atherosclerotic disease and its outcomes were associated with better control.


Assuntos
Hipertensão , Adulto , Idoso , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea , Brasil/epidemiologia , Estudos Transversais , Feminino , Humanos , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
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