RESUMO
This narrative review highlights strategies proposed by the Mexican Group of Experts on Arterial Hypertension endorsed to prevent, diagnose, and treat chronic kidney disease (CKD) related to systemic arterial hypertension (SAH). Given the growing prevalence of CKD in Mexico and Latin America caused by SAH, there is a need for context-specific approaches to address the effects of SAH, given the diverse population and unique challenges faced by the region. This narrative review provides clinical strategies for healthcare providers on preventing, diagnosing, and treating kidney disease related to SAH, focusing on primary prevention, early detection, evidence-based diagnostic approaches, and selecting pharmacological treatments. Key-strategies are focused on six fundamental areas: 1) Strategies to mitigate kidney disease in SAH, 2) early detection of CKD in SAH, 3) diagnosis and monitoring of SAH, 4) blood pressure targets in patients living with CKD, 5) hypertensive treatment in patients with CKD and 6) diuretics and Non-Steroidal Mineralocorticoid Receptor Inhibitors in Patients with CKD. This review aims to provide relevant strategies for the Mexican and Latin American clinical context, highlight the importance of a multidisciplinary approach to managing SAH, and the role of community-based programs in improving the quality of life for affected individuals. This position paper seeks to contribute to reducing the burden of SAH-related CKD and its complications in Mexico and Latin America.
Assuntos
Hipertensão , Insuficiência Renal Crônica , Humanos , México/epidemiologia , Qualidade de Vida , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Pressão SanguíneaRESUMO
The coexistence of SAH with T2DM is a common comorbidity. In this study, we investigated the link between altered plasma antioxidant trace elements (ATE: manganese, selenium, zinc, and copper) and fatty acids ratio (FAR: polyunsaturated/saturated) imbalance as transition biomarkers between vascular pathology (SAH) to metabolic pathology (T2DM). Our data revealed strong correlation between plasma ATE and FAR profile, which is modified during SAH-T2DM association compared to the healthy group. This relationship is mediated by lipotoxicity (simultaneously prominent visceral adipose tissue lipolysis, significant flow of non-esterified free fatty acids release, TG-Chol-dyslipidemia, high association of total SFA, palmitic acid, arachidonic acid, and PUFA ω6/PUFA ω3; drop in tandem of PUFA/SFA and EPA + DHA); oxidative stress (lipid peroxidation confirmed by TAS depletion and MDA rise, concurrent drop of Zn/Cu-SOD, GPx, GSH, Se, Zn, Se/Mn, Zn/Cu; concomitant enhancement of Cu, Mn, and Fe); endothelial dysfunction (endotheline-1 increase); athero-thrombogenesis risk (concomitant rise of ApoB100/ApoA1, Ox-LDL, tHcy, and Lp(a)), and inflammation (higher of Hs-CRP, fibrinogen and ferritin). Our study opens to new therapeutic targets and to better dietary management, such as to establishing dietary ATE and PUFA ω6/PUFA ω3 or PUFA/SFA reference values for atherosclerotic risk prevention in hypertensive/diabetic patients.
Assuntos
Diabetes Mellitus Tipo 2 , Ácidos Graxos , Hipertensão , Oligoelementos , Humanos , Oligoelementos/sangue , Oligoelementos/metabolismo , Masculino , Hipertensão/sangue , Hipertensão/complicações , Pessoa de Meia-Idade , Feminino , Ácidos Graxos/metabolismo , Ácidos Graxos/sangue , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/metabolismo , Estresse Oxidativo , Biomarcadores/sangue , Endotélio Vascular/metabolismo , Endotélio Vascular/fisiopatologiaRESUMO
The objectives of this study were to verify, first, if arterial stiffness indices can discriminate between obese and healthy children. Second, to evaluate arterial stiffness index predictors and hemodynamic parameters in obese children. Arterial stiffness indices evaluated were pulse wave velocity (PWV), central systolic blood pressure (SBPc), and central pulse pressure (PPc). A cross-sectional, descriptive, comparative study design was used. The sample consisted of 78 normal-weight children (8.1 ± 1.96 years) and 58 obese children (9.0 ± 1.87 years). PWV, PPc, and SBPc were significantly higher in the group of obese children than in the control group. The ROC curve analysis showed that maximum PWV and SBPc sensitivity and specificity in differentiating obese from non-obese children occurred at 4.09 m/s and 86.17 mmHg, respectively. PPc did not exhibit a discriminatory capacity between the two groups. Peripheral systolic blood pressure (SBPp), peripheral pulse pressure (PPp), and PPc (R2 = 0.98) were predictors of increased PWV. Augmentation pressure, PPp, and reflection coefficient (R2 = 0.873) were predictors of PPc. Age, augmentation index, total vascular resistance, cardiac index, and mean fat percentage (R2 = 0.801) were predictors of SBPc. CONCLUSION: This study shows for the first time that PWV > 4.09 m/s and SBPc > 86.17 mmHg are cut-off points associated with a higher risk of obesity. These results indicate that the simple, rapid, and noninvasive measurement of arterial stiffness adds prognostic information regarding cardiovascular risk, in addition to increased body mass index. WHAT IS KNOWN: ⢠Overweight and obesity are strongly associated with comorbidities que contribute to the development of cardiovascular diseases. WHAT IS NEW: ⢠This is the first study to show that PWV and SBPc can discriminate obese from non-obese children. These results show that, in addition to an increased BMI, a simple, rapid, and noninvasive measurement of arterial stiffness adds prognostic information on cardiovascular risk.
Assuntos
Rigidez Vascular , Humanos , Criança , Pressão Sanguínea/fisiologia , Rigidez Vascular/fisiologia , Análise de Onda de Pulso , Estudos Transversais , Obesidade/complicaçõesRESUMO
We aim to evaluate the prevalence of reporting and the extent of statistical heterogeneity of systematic reviews with meta-analyses (SRMAs) of exercise training for hypertension and to provide practical recommendations for dealing with statistical heterogeneity. We systematically searched on four databases (from 2002 to September of 2023) for SRMAs comparing exercise interventions vs. a non-exercise control on blood pressure (BP) control in adults with hypertension. Fifty-nine SRMAs, with a median of 14 studies, were analysed. Cochran's Q (41%), I2 (24%), forest plots (44%), and particularly τ2 (54%) and prediction intervals (96.6%) frequently were not reported for the hypertension subgroup. The recalculated prediction intervals were discrepant (i.e., crossed the null effect) of significant 95% confidence intervals of most meta-analyses (systolic BP: 65%; diastolic BP: 92%). This suggests substantial heterogeneity across studies, which was often not acknowledged by authors' conclusions (78%). Consequently, downgrading the certainty of the available evidence may be justified alone due to heterogeneity across studies. Finally, we illustrate areas for improving I2 interpretation and provide practical recommendations on how to address statistical heterogeneity across all stages of a SRMA.
Assuntos
Hipertensão , Adulto , Humanos , Pressão Sanguínea , Exercício Físico , Hipertensão/epidemiologia , Revisões Sistemáticas como Assunto , Metanálise como AssuntoRESUMO
BACKGROUND AND OBJECTIVE: Non-communicable diseases like systemic arterial hypertension (SAH) and dyslipidemia are poorly studied in terms of patient journey aspects. This semi-systematic review provides evidence synthesis for the management of SAH and dyslipidemia in Brazil and also discusses challenges faced by patients at the local level along with a suggested care approach by local experts. METHODS: A semi-systematic review using both structured literature databases (Embase and Medline) and unstructured scientific records (WHO, IPD, MOH and Google) on hypertension and dyslipidemia in the English language from 2010 to 2019 was performed by reviewers. After two-level screening based on pre-defined criteria, patient journey touchpoints and prevalence information were extracted from the included articles. Data gaps were bridged through the insights of local experts. RESULTS: Prevalence of hypertension and dyslipidemia in Brazil were 23% and 40.8%, respectively. Awareness of dyslipidemia was found in a larger proportion (58.1%) than in SAH (22.2%). Similarly, screening for hypertension (97%) and dyslipidemia (55.4%) were found to be effective, while treatment was (62.9%) and (30.0%) for hypertension and dyslipidemia, respectively. CONCLUSION: There were important gaps on patient awareness and treatment of dyslipidemia and hypertension. Limited patient education, regional disease distribution, and treatment allocation, along with limited resources for diagnosis and treatment are the key challenges.
Assuntos
Dislipidemias , Hipertensão , Brasil/epidemiologia , Dislipidemias/diagnóstico , Dislipidemias/epidemiologia , Dislipidemias/terapia , Humanos , Hipertensão/diagnóstico , Hipertensão/epidemiologia , Hipertensão/terapia , PrevalênciaRESUMO
PURPOSE: The incidence of hip fractures is increasing exponentially due to an aging Brazilian population. Older people had significant comorbidities which increases the risk of post-operative mortality. Our purpose was to examine the association between pre-operative infections and comorbidities on the risk of post-operative in-hospital mortality after proximal femur fracture surgery's, beyond that, to evaluate the association between comorbidities and time to surgery. METHODS: This is a population-based cohort retrospective study, using medical records of all six year consecutive surgical procedures for correction of hip fracture in a tertiary teaching Hospital in Brazil. The exclusion criteria aimed to exclusively allocate patients who had their first hip fracture secondary to low-energy trauma. Multivariate logistical regression was performed and receiver operating characteristic (ROC) curve with area under curve (AUC) to evaluate the sensitivity and specificity of the model. p-value < 0.05 was considered significant. RESULTS: Final sample was composed by 856 consecutive patients with 81 years of median and 164 patients were excluded. The median length of hospital say was five days with - l mortality at 3.6%. Significant variables for increased mortality included the presence of pre-operative infection (odds ratio (OR): 3.9(1.12-8.54), chronic obstructive pulmonary disease (COPD) (OR: 3.83(1.36-10.82)), and systemic arterial hypertension (SAH) (OR: 4.1(1.18-14.25)). Development of pre-operative infection was associated with a delay to surgery (OR: 1.1 (1.08-1.13)). CONCLUSIONS: In older people with proximal femur fracture, the presence of pre-operative infection, COPD and SAH were the strongest risk factor for post-operative in-hospital mortality. Pre-operative infection was associated with statistically significant delay to surgery.
Assuntos
Fraturas do Quadril , Doença Pulmonar Obstrutiva Crônica , Idoso , Brasil/epidemiologia , Fraturas do Quadril/complicações , Fraturas do Quadril/cirurgia , Mortalidade Hospitalar , Humanos , Complicações Pós-Operatórias/epidemiologia , Doença Pulmonar Obstrutiva Crônica/complicações , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Centros de Atenção TerciáriaRESUMO
Background and Objective: The routine practice of self-medication of blood pressure (BP) not oriented with pulse devices may not be precisely useful in the control of BP and can lead the patient to self-medicate in error. Thus, we need to evaluate the non-oriented self-assessment of BP in real-life circumstances in hypertensive patients. The objective of this study was to evaluate in hypertensive patients the association of BP self-measurement with its control, as well as the presence of anxiety disorders, the occurrence of unscheduled visits to the emergency room, and self-medication. Materials and Methods: An observational study was carried out with 1000 hypertensive volunteers (age: 61.0 ± 12.5). Using a questionnaire, sociodemographic and clinical data on BP control were collected. Anxiety was assessed by the State-Trait Anxiety Inventory (STAI). Results: The group that performed non-oriented self-measurement of BP, showed that they had higher frequencies of self-medication (57.9%, p < 0.05) and more unscheduled visits to the emergency room (68%, p < 0.05). In addition, a lower level of BP control (46.8%, p < 0.05) was associated with higher levels of anxiety (52.3%, p < 0.05) in the group that performed non-oriented self-measurements of BP. Conclusion: The practice of non-oriented self-assessment of BP was associated with negative factors such as high levels of anxiety and higher frequencies of self-medication and unscheduled emergency visits.
Assuntos
Hipertensão , Idoso , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/uso terapêutico , Ansiedade , Transtornos de Ansiedade/tratamento farmacológico , Pressão Sanguínea , Serviço Hospitalar de Emergência , Humanos , Hipertensão/tratamento farmacológico , Pessoa de Meia-IdadeRESUMO
INTRODUCTION: Timely diagnosis and early therapeutic intervention reduce premature mortality associated with chronic renal failure. OBJECTIVE: To identify the prevalence and factors associated with occult renal failure in patients with chronic diseases. METHOD: Cross-sectional study of 1268 patients with type 2 diabetes mellitus and systemic arterial hypertension. A measuring instrument with questions about associated factors such as osteoarthritis, treatment of chronic conditions, smoking, analgesic consumption, alcoholism, body mass index, physical activity and serum glucose, cholesterol and triglyceride levels was used. RESULTS: The prevalence of occult renal failure was 13.2 % (167/1,268), 13.4 % in diabetic patients (117/876) and 14.9 % in hypertensive patients (150/1,010). In the multivariate analysis, the factors associated with occult renal failure were being older than 60 years (aOR = 1.96, 95 % CI = 1.22-2.49), belonging to the female gender (aOR = 2.17, 95 % CI = 1.30-2.82), suffering from systemic arterial hypertension (aOR = 1.96, 95% CI = 1.22-2.50) and not having overweight/obesity (aOR = 0.49, 95 % CI = 0.41-0.8). CONCLUSIONS: The prevalence of occult renal failure was 13 %. Female patients older than 60 years with overweight/obesity and systemic arterial hypertension should be examined in detail by the family doctor for occult renal failure early detection.
INTRODUCCIÓN: El diagnóstico oportuno y la intervención terapéutica temprana disminuyen la mortalidad prematura asociada con insuficiencia renal crónica. OBJETIVO: Identificar la prevalencia y factores asociados con insuficiencia renal oculta en pacientes con enfermedades crónicas. MÉTODO: Estudio transversal de 1268 pacientes con diabetes mellitus tipo 2 e hipertensión arterial sistémica. Se usó un instrumento de medición con preguntas sobre factores asociados como artrosis, tratamiento de padecimiento crónico, tabaquismo, ingesta de analgésicos, alcoholismo, índice de masa corporal, actividad física y niveles séricos de glucosa, colesterol y triglicéridos. RESULTADOS: La prevalencia de insuficiencia renal oculta fue de 13.2 % (167/1268), 13.4 % en pacientes diabéticos (117/876) y 14.9 % en hipertensos (150/1010). En el analisis multivariado, los factores asociados con insuficiencia renal oculta fueron edad > 60 años (RMa = 1.96, IC 95 % = 1.22-2.49), sexo femenino (RMa = 2.17, IC 95 % = 1.30-2.82), padecer hipertensión arterial sistémica (RMa = 1.96, IC 95 % = 1.22-2.50) y no tener sobrepeso u obesidad (RMa = 0.49, IC 95 % = 0.41-0.8). CONCLUSIONES: La prevalencia de insuficiencia renal oculta fue de 13 %. Los pacientes mayores de 60 años, con sobrepeso u obesidad e hipertensión arterial sistémica deben ser examinados detalladamente por el médico familiar para la detección temprana de insuficiencia renal oculta.
Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Hipertensão/epidemiologia , Insuficiência Renal/epidemiologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Doença Crônica , Estudos Transversais , Dislipidemias/epidemiologia , Feminino , Humanos , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Análise Multivariada , Obesidade/epidemiologia , Osteoartrite/epidemiologia , Sobrepeso/epidemiologia , Prevalência , Insuficiência Renal/etiologia , Insuficiência Renal/mortalidade , Fatores Sexuais , Fumar/epidemiologia , Adulto JovemRESUMO
The purpose of this study was to assess efficacy of cerebral protection during carotid endarterectomy by means of controlled systemic hypertension in patients presenting with various levels of retrograde pressure in the internal carotid artery. The study enrolled a total of 150 patients subjected to carotid endarterectomy. The operation was carried out under general anaesthesia with artificial pulmonary ventilation and was accompanied by haemodynamic monitoring with invasive control of arterial pressure, as well as primary and additional correction of central haemodynamics. Cerebral perfusion was assessed by measuring retrograde pressure in the internal carotid artery. The retrograde pressure index was calculated, according to which the patients were subdivided into three groups: those with values less than 30, with values from 30 to 39, and with values of 40 and more. Controlled systemic arterial hypertension was used as cerebral protection during the period of cross-clamping of the internal carotid artery, with phenylephrine and norepinephrine administered for this purpose. The parameters of central haemodynamics, time intervals of the operation, and the duration of internal carotid artery cross-clamping in the groups did not statistically differ (p>0.05). A statistically significant difference was revealed in the level of systolic arterial pressure necessary for cerebral protection (p<0.05). There were no cerebral circulation impairments, myocardial infarctions, nor lethal outcomes. A conclusion was drawn that individualized correction of central haemodynamics ensured a sufficient level of collateral compensation of the cerebral blood flow, thus making it possible to refuse from using intraluminal shunts.
Assuntos
Endarterectomia das Carótidas/efeitos adversos , Hipertensão , Artérias Carótidas , Artéria Carótida Interna/cirurgia , Circulação Cerebrovascular , Endarterectomia , Hemodinâmica , HumanosRESUMO
Background: Epidemiological studies suggest a possible relationship between metabolic alterations, cardiovascular disease and aggressive prostate cancer, however, no clear consensus has been reached. Objective: The aim of the study was to analyze the recent literature and summarize our experience on the association between metabolic disorders, aggressive hormone-naïve prostate cancer and cardiovascular disease. Method: We identified relevant papers by searching in electronic databases such as Scopus, Life Science Journals, and Index Medicus/Medline. Moreover, we showed our experience on the reciprocal relationship between metabolic alterations and aggressive prostate cancer, without the influence of hormone therapy, as well the role of coronary and carotid vasculopathy in advanced prostate carcinoma. Results: Prostate cancer cells have an altered metabolic homeostatic control linked to an increased aggressivity and cancer mortality. The absence of discrimination of risk factors as obesity, systemic arterial hypertension, diabetes mellitus, dyslipidemia and inaccurate selection of vascular diseases as coronary and carotid damage at initial diagnosis of prostate cancer could explain the opposite results in the literature. Systemic inflammation and oxidative stress associated with metabolic alterations and cardiovascular disease can also contribute to prostate cancer progression and increased tumor aggressivity. Conclusions: Metabolic alterations and cardiovascular disease influence aggressive and metastatic prostate cancer. Therefore, a careful evaluation of obesity, diabetes mellitus, dyslipidemia, systemic arterial hypertension, together with a careful evaluation of cardiovascular status, in particular coronary and carotid vascular disease, should be carried out after an initial diagnosis of prostatic carcinoma.
Assuntos
Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/metabolismo , Doenças Metabólicas/epidemiologia , Doenças Metabólicas/metabolismo , Neoplasias da Próstata/epidemiologia , Neoplasias da Próstata/metabolismo , Animais , Comorbidade , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/metabolismo , Dislipidemias/epidemiologia , Dislipidemias/metabolismo , Humanos , Hipertensão/epidemiologia , Hipertensão/metabolismo , MEDLINE , Masculino , Camundongos , Obesidade/epidemiologia , Obesidade/metabolismo , Fatores de RiscoRESUMO
Hypertension is the most widespread disease in the world affecting humans and imparts a significant cardiovascular and renal risk to patients, and extensive research over the past few decades has enhanced our understanding of the underlying pathogenesis of hypertension. A growing number of studies have shown that miRNAs are involved in the pathological mechanisms of hypertension. This review summarizes the current understanding of miRNA-mediated modulation of gene expression in the hypertension pathogenesis in the past few years. A systematic review of PUBMED, EMBASE and SCOPUS was conducted for studies published in the past few years. The review covers three topics: miRNAs in pulmonary arterial hypertension (PAH), miRNAs and systemic arterial hypertension (SAH), miRNAs and application in hypertension. This review summarizes the current understanding of miRNA-mediated modulation in the hypertension pathogenesis in the past few years, with especially emphasis on miRNAs in PAH. We also discussed the roles of miRNAs in SAH, and the therapeutic applications of these miRNAs will be detailed discussed in this review. Evidence suggests that miRNAs are involved in the pathological mechanisms of hypertension, and the roles of miRNAs in the hypertension pathogenesis are confirmed. We need to further investigate the regulated roles of miRNAs in the pathogenesis of hypertension and the application of miRNAs in the diagnosis and treatment of this disease in the future.
Assuntos
Hipertensão Pulmonar/genética , Hipertensão/genética , MicroRNAs/genética , Expressão Gênica , Humanos , Hipertensão/fisiopatologia , Hipertensão Pulmonar/fisiopatologia , Miócitos de Músculo Liso , Artéria PulmonarRESUMO
MicroRNAs are small non-coding RNAs that regulate gene expression post-transcriptionally. They are involved in the regulation of physiological processes, such as adaptation to physical exercise, and also in disease settings, such as systemic arterial hypertension (SAH), type 2 diabetes mellitus (T2D), and obesity. In SAH, microRNAs play a significant role in the regulation of key signaling pathways that lead to the hyperactivation of the renin-angiotensin-aldosterone system, endothelial dysfunction, inflammation, proliferation, and phenotypic change in smooth muscle cells, and the hyperactivation of the sympathetic nervous system. MicroRNAs are also involved in the regulation of insulin signaling and blood glucose levels in T2D, and participate in lipid metabolism, adipogenesis, and adipocyte differentiation in obesity, with specific microRNA signatures involved in the pathogenesis of each disease. Many studies report the benefits promoted by exercise training in cardiovascular diseases by reducing blood pressure, glucose levels, and improving insulin signaling and lipid metabolism. The molecular mechanisms involved, however, remain poorly understood, especially regarding the participation of microRNAs in these processes. This review aimed to highlight microRNAs already known to be associated with SAH, T2D, and obesity, as well as their possible regulation by exercise training.
Assuntos
Diabetes Mellitus Tipo 2/genética , Exercício Físico/fisiologia , Hipertensão/genética , MicroRNAs/genética , Obesidade/genética , MicroRNA Circulante/genética , MicroRNA Circulante/metabolismo , Diabetes Mellitus Tipo 2/sangue , Humanos , Hipertensão/sangue , MicroRNAs/metabolismo , Obesidade/sangueRESUMO
A true aneurysm of the dorsal artery of the foot is a rare medical finding and its principal causes and clinical manifestations are not well known. A 49-year-old female patient presented with a pulsatile mass on the dorsal part of her right foot. Clinical and ultrasound examinations confirmed a diagnosis of aneurysm. The aneurysm was resected after dissection, exposure and isolation of the proximal and distal stumps of the dorsalis pedis artery. Simple ligature and resection of the aneurysm is proving to be a safe treatment option in patients with a patent plantar arch.
RESUMO
PURPOSE: Aortic stiffness plays an important role in evaluating and predicting the progression of systemic arterial hypertension (SAH). The aim of this study is to determine the stiffness of aortic wall using MR elastography (MRE) in a hypertensive porcine model and compare it against invasive aortic pressure measurements. METHODS: Renal wrapping surgery was performed on eight pigs to induce SAH. Aortic MRE was performed at baseline and 2 months postsurgery using a retrospectively pulse-gated gradient-echo MRE sequence on a 1.5 tesla scanner. Mechanical waves of 70 Hz were introduced into the aorta. Invasive central aortic pressure measurements were obtained prior to each scan to calculate mean arterial pressure (MAP). MRE data were analyzed to obtain effective aortic stiffness. Spearman's rank correlation analysis was performed to assess the relationship between MAP and MRE-derived aortic stiffness. RESULTS: Significant increase in effective aortic stiffness was observed between baseline and 2 months postsurgery measurements (paired t test; P = 0.004). The average MAP, determined by pooling all animals, was 65.24 ± 9.42 mm Hg at baseline and 92.57 ± 11.80 mm Hg 2 months postsurgery with P < 0.0001. Moderate linear correlation was observed between MAP and effective aortic stiffness (ρ = 0.52; P = 0.046). CONCLUSION: This study demonstrated that, in a SAH porcine model, MRE-derived aortic stiffness increased with increase in MAP. Magn Reson Med 78:2315-2321, 2017. © 2017 International Society for Magnetic Resonance in Medicine.
Assuntos
Aorta/diagnóstico por imagem , Técnicas de Imagem por Elasticidade , Hipertensão/diagnóstico por imagem , Imageamento por Ressonância Magnética , Rigidez Vascular , Animais , Aorta Abdominal , Pressão Arterial , Módulo de Elasticidade , Interpretação de Imagem Assistida por Computador , Processamento de Imagem Assistida por Computador , Rim/cirurgia , Modelos Lineares , Reprodutibilidade dos Testes , Estresse Mecânico , SuínosRESUMO
Takayasu's arteritis is known to cover the youngest age group in the etiology of secondary hypertension. The type 3 pattern is rare and involves the thoraco-abdominal aorta and its main abdominal branches. Here, we present the imaging results of a patient who had been followed up for systemic arterial hypertension and was diagnosed with Takayasu's arteritis type 3 by CT and MR angiography following bilateral detection of a parvus-tardus Doppler signal modulation in the renal arteries. We discuss the differential diagnoses that should be considered when observing a tardus-parvus Doppler signal. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 45:612-615, 2017.
Assuntos
Processamento de Sinais Assistido por Computador , Arterite de Takayasu/diagnóstico por imagem , Ultrassonografia Doppler/métodos , Adulto , Anti-Hipertensivos/uso terapêutico , Diagnóstico Diferencial , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Rim/diagnóstico por imagem , Rim/fisiopatologia , Arterite de Takayasu/tratamento farmacológico , Arterite de Takayasu/fisiopatologia , Adulto JovemAssuntos
Asma , COVID-19 , Asma/diagnóstico , Asma/epidemiologia , Progressão da Doença , Humanos , Fatores de Risco , SARS-CoV-2RESUMO
The spontaneously hypertensive (SH) rat has been used as an animal model of vascular dementia (VD). Our previous report showed that, SH rats exhibited dendritic atrophy of pyramidal neurons of the CA1 dorsal hippocampus and layers 3 and 5 of the prefrontal cortex (PFC) at 8 months of age. In addition, we showed that cerebrolysin (Cbl), a neurotrophic peptide mixture, reduces the dendritic atrophy in aged animal models. This study aimed to determine whether Cbl was capable of reducing behavioral and neuronal alterations, in old female SH rats. The level of diastolic and systolic pressure was measured every month for the 6 first months and only animals with more than 160 mm Hg of systolic pressure were used. Female SH rats (6 months old) received 6 months of Cbl treatment. Immediately after the Cbl treatment, two behavioral tests were applied, the Morris water maze test for memory and learning and locomotor activity in novel environments. Immediately after the last behavioral test, dendritic morphology was studied with the Golgi-Cox stain procedure followed by a Sholl analysis. Clearly, SH rats with Cbl showed an increase in the dendritic length and dendritic spine density of pyramidal neurons in the CA1 in the dorsal hippocampus and layers 3 and 5 of the PFC. Interestingly, Cbl improved memory of the old SH rats. Our results support the possibility that Cbl may have beneficial effects on the management of brain alterations in an animal model with VD. Synapse 70:378-389, 2016. © 2016 Wiley Periodicals, Inc.
Assuntos
Aminoácidos/farmacologia , Pressão Sanguínea , Região CA1 Hipocampal/efeitos dos fármacos , Memória , Fármacos Neuroprotetores/farmacologia , Córtex Pré-Frontal/efeitos dos fármacos , Células Piramidais/efeitos dos fármacos , Animais , Região CA1 Hipocampal/citologia , Região CA1 Hipocampal/crescimento & desenvolvimento , Região CA1 Hipocampal/fisiologia , Dendritos/efeitos dos fármacos , Dendritos/patologia , Feminino , Aprendizagem em Labirinto , Córtex Pré-Frontal/citologia , Córtex Pré-Frontal/crescimento & desenvolvimento , Córtex Pré-Frontal/fisiologia , Células Piramidais/patologia , Ratos , Ratos Endogâmicos SHRRESUMO
PURPOSE: The aims of this study were to investigate the myocardial deformation in well-treated type 2 diabetes patients with or without hypertension using three-dimensional speckle-tracking echocardiography and to explore variables that could affect myocardial deformation. METHODS: We studied 82 patients with type 2 diabetes and controlled blood glucose, including 46 subjects with diabetes alone and 36 subjects with diabetes and well-controlled hypertension, and 40 age- and gender-matched controls. Left ventricular real-time three-dimensional (3D) full-volume images were recorded and analyzed using online software. The left ventricular ejection fraction, global longitudinal strain (GLS), global circumferential strain, global area strain, and global radial strain were measured and compared. RESULTS: Despite a similar three-dimensional left ventricular ejection fraction, GLS was significantly lower in patients with diabetes only than in controls (p < 0.001). Patients with diabetes and hypertension showed significantly lower systolic strains in all directions than controls and patients with diabetes only (p < 0.001 and p < 0.05, respectively). Multiple regression analysis revealed that fasting plasma glucose and left ventricular end-diastolic volume were significant factors influencing GLS in both diabetic groups. CONCLUSIONS: Early-stage diabetic patients showed an impaired left ventricular strain that was worsened by coexistent hypertension, although blood glucose and blood pressure were well controlled. Three-dimensional speckle-tracking echocardiography was able to detect these subclinical changes.
Assuntos
Diabetes Mellitus Tipo 2/complicações , Ecocardiografia Tridimensional/métodos , Hipertensão/complicações , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/etiologia , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
[Purpose] To verify the effects of different intensities of aerobic exercise on 24-hour ambulatory blood pressure (BP) responses in individuals with type 2 diabetes mellitus (T2D) and prehypertension. [Subjects and Methods] Ten individuals with T2D and prehypertension (55.8 ± 7.7â years old; blood glucose 133.0 ± 36.7â mg·dL(-1) and awake BP 130.6 ± 1.6/ 80.5 ± 1.8 mmHg) completed three randomly assigned experiments: non-exercise control (CON) and exercise at moderate (MOD) and maximal (MAX) intensities. Heart rate (HR), BP, blood lactate concentrations ([Lac]), oxygen uptake (VO2), and rate of perceived exertion (RPE) were measured at rest, during the experimental sessions, and during the 60â min recovery period. After this period, ambulatory blood pressure was monitored for 24â h. [Results] The results indicate that [Lac] (MAX: 6.7±2.0 vs. MOD: 3.8±1.2â mM), RPE (MAX: 19±1.3 vs. MOD: 11±2.3) and VO2peak (MAX: 20.2±4.1 vs. MOD: 14.0±3.0â mL·kg(-1)·min(-1)) were highest following the MAX session. Compared with CON, only MAX elicited post-exercise BP reduction that lasted for 8â h after exercise and during sleep. [Conclusion] A single session of aerobic exercise resulted in 24â h BP reductions in individuals with T2D, especially while sleeping, and this reduction seems to be dependent on the intensity of the exercise performed.
RESUMO
OBJECTIVE: This study evaluated the impact of functional training (FT) on the ambulatory blood pressure and physical fitness of resistant hypertensive older adults. METHOD: This randomized clinical and controlled rehearsal involved 15 participants from Juazeiro do Norte-CE divided into two groups: a control group (CG), n = 7, without physical training, and an experimental group (EG), n = 8, subjected to 24 sessions of FT. The comparative analysis included ambulatory blood pressure (24 h mapping) and physical fitness (Senior Fitness Test), using an ANOVA of two factors, an alpha of 0.05, and a post hoc by Bonferroni where necessary. The dimension of the intervention effect was verified using Eta Squared. RESULTS: The results show that FT promoted a significant reduction in systolic blood pressure (SAP) during the day and at night, as well as improving physical fitness, including the force/resistance of the lower and upper limbs, physical mobility, and aerobic resistance. The flexibility of the upper and lower limbs was not affected. CONCLUSION: It is concluded that FT is effective in reducing SAP and improving physical fitness in resistant older adults. However, this type of training may positively influence general physical fitness of older adults with resistant hypertension.