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1.
Nutr Metab Cardiovasc Dis ; 34(5): 1283-1294, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38494368

RESUMO

BACKGROUND AND AIMS: Vitamin D deficiency is a common cardiovascular risk factor associated with the development of atherosclerosis. We evaluated changes in 25(OH)D concentrations in 1510 patients with acute myocardial infarction (AMI) over a long observation period, including the COVID-19 pandemic. METHODS AND RESULTS: Patients were separated into four groups according to the year of enrolment, group 1 (2009-2010), group 2 (2014-2016), group 3 (2017-2019), and group 4 (2020-2022). The median 25(OH)D concentration in the overall cohort was 17.15 (10.3-24.7) ng/mL. The median plasma concentrations of 25(OH)D for groups 1, 2, 3, and 4 were 14.45 (7.73-22.58) ng/mL, 17.3 ng/mL (10.33-24.2), 18.95 (11.6-26.73) ng/mL and 19.05 (12.5-27.3) ng/mL, respectively. Although 25(OH)D levels increased over the years, the prevalence of vitamin D deficiency remained high in each group (68.4%, 61.4%, 53.8%, and 52% respectively). Hypovitaminosis D was predicted by the season influence (OR:2.03, p < 0.0001), higher body mass index (OR:1.25; p = 0.001), diabetes mellitus (OR:1.54; p = 0.001), smoking (OR:1.47; p = 0.001), older age (OR:1.07; p = 0.008), higher triglycerides levels (OR:1.02; p = 0.01), and female gender (OR:1.3; p = 0.038). After multivariable adjustment, vitamin D ≤ 20 ng/mL was an independent predictor of mortality. CONCLUSION: Vitamin D deficiency is highly prevalent and persistent in patients with AMI despite a trend towards increasing 25(OH)D concentrations over the years. The frequent lockdowns did not reduce the levels of 25(OH)D in the fourth group. Low levels of 25(OH)D are an independent predictor of mortality.


Assuntos
Infarto do Miocárdio , Deficiência de Vitamina D , Humanos , Feminino , Pandemias , Fatores de Risco , Deficiência de Vitamina D/diagnóstico , Deficiência de Vitamina D/epidemiologia , Vitamina D , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/epidemiologia , Itália/epidemiologia
2.
Blood Press ; 33(1): 2368800, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38910347

RESUMO

Objective Real-life management of patients with hypertension and chronic kidney disease (CKD) among European Society of Hypertension Excellence Centres (ESH-ECs) is unclear : we aimed to investigate it. Methods A survey was conducted in 2023. The questionnaire contained 64 questions asking ESH-ECs representatives to estimate how patients with CKD are managed. Results Overall, 88 ESH-ECS representatives from 27 countries participated. According to the responders, renin-angiotensin system (RAS) blockers, calcium-channel blockers and thiazides were often added when these medications were lacking in CKD patients, but physicians were more prone to initiate RAS blockers (90% [interquartile range: 70-95%]) than MRA (20% [10-30%]), SGLT2i (30% [20-50%]) or (GLP1-RA (10% [5-15%]). Despite treatment optimisation, 30% of responders indicated that hypertension remained uncontrolled (30% (15-40%) vs 18% [10%-25%]) in CKD and CKD patients, respectively). Hyperkalemia was the most frequent barrier to initiate RAS blockers, and dosage reduction was considered in 45% of responders when kalaemia was 5.5-5.9 mmol/L. Conclusions RAS blockers are initiated in most ESH-ECS in CKD patients, but MRA and SGLT2i initiations are less frequent. Hyperkalemia was the main barrier for initiation or adequate dosing of RAS blockade, and RAS blockers' dosage reduction was the usual management.


What is the context? Hypertension is a strong independent risk factor for development of chronic kidney disease (CKD) and progression of CKD to ESKD. Improved adherence to the guidelines in the treatment of CKD is believed to provide further reduction of cardiorenal events. European Society of Hypertension Excellence Centres (ESH-ECs) have been developed in Europe to provide excellency regarding management of patients with hypertension and implement guidelines. Numerous deficits regarding general practitioner CKD screening, use of nephroprotective drugs and referral to nephrologists prior to referral to ESH-ECs have been reported. In contrast, real-life management of these patients among ESH-ECs is unknown. Before implementation of strategies to improve guideline adherence in Europe, we aimed to investigate how patients with CKD are managed among the ESH-ECs.What is the study about? In this study, a survey was conducted in 2023 by the ESH to assess management of CKD patients referred to ESH-ECs. The questionnaire contained 64 questions asking ESH-ECs representatives to estimate how patients with CKD are managed among their centres.What are the results? RAAS blockers are initiated in 90% of ESH-ECs in CKD patients, but the initiation of MRA and SGLT2i is less frequently done. Hyperkalemia is the main barrier for initiation or adequate dosing of RAAS blockade, and its most reported management was RAAS blockers dosage reduction. These findings will be crucial to implement strategies in order to improve management of patients with CKD and guideline adherence among ESH-ECs.


Assuntos
Hipertensão , Insuficiência Renal Crônica , Humanos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Hipertensão/tratamento farmacológico , Europa (Continente) , Anti-Hipertensivos/uso terapêutico , Masculino , Inquéritos e Questionários , Feminino , Pessoa de Meia-Idade , Bloqueadores dos Canais de Cálcio/uso terapêutico , Sociedades Médicas , Antagonistas de Receptores de Angiotensina/uso terapêutico
3.
Chaos ; 34(4)2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38629790

RESUMO

The heart beats are due to the synchronized contraction of cardiomyocytes triggered by a periodic sequence of electrical signals called action potentials, which originate in the sinoatrial node and spread through the heart's electrical system. A large body of work is devoted to modeling the propagation of the action potential and to reproducing reliably its shape and duration. Connection of computational modeling of cells to macroscopic phenomenological curves such as the electrocardiogram has been also intense, due to its clinical importance in analyzing cardiovascular diseases. In this work, we simulate the dynamics of action potential propagation using the three-variable Fenton-Karma model that can account for both normal and damaged cells through a the spatially inhomogeneous voltage diffusion coefficient. We monitor the action potential propagation in the cardiac tissue and calculate the pseudo-electrocardiogram that reproduces the R and T waves. The R-wave amplitude varies according to a double exponential law as a function of the (spatially homogeneous, for an isotropic tissue) diffusion coefficient. The addition of spatial inhomogeneity in the diffusion coefficient by means of a defected region representing damaged cardiac cells may result in T-wave inversion in the calculated pseudo-electrocardiogram. The transition from positive to negative polarity of the T-wave is analyzed as a function of the length and the depth of the defected region.


Assuntos
Arritmias Cardíacas , Modelos Cardiovasculares , Humanos , Eletrocardiografia , Potenciais de Ação/fisiologia , Miócitos Cardíacos
4.
Pediatr Res ; 94(5): 1639-1647, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37402844

RESUMO

Cardiovascular disease (CVD) is a process whose pathogenetic mechanisms start very early in life. Recently, the importance of visceral adipose tissue (VAT) has been highlighted in the development of CVD. VAT does not always depend on body mass index (BMI) and has been implicated in unfavorable metabolic activity and cardiovascular adverse events. Abnormally high deposition of VAT is associated with metabolic syndrome, obesity-associated phenotype, and cardiometabolic risk factors. Although the importance of visceral fat has not been studied broadly or extensively in long-term studies in children and adolescents, it appears that it does not have the same behavior as in adults, it is related to the appearance of cardiac risk factors. In adolescents, it plays a role in the pathogenesis of CVD that occur later in adulthood. Excess body weight and adiposity may lead to the development of early myocardial and pathological coronary changes in childhood. The purpose of this review is to summarize the risk factors, the clinical significance, and the prognostic role of visceral obesity in children and adolescents. In addition, extensive reference is made to the most commonly used techniques for the evaluation of VAT in clinical settings. IMPACT: Visceral obesity, plays an important role in cardiovascular health from very early in an individual's life. Visceral adipose tissue (VAT) distribution is not entirely related to body mass index (BMI) and provides additional prognostic information. There is a need to pay more attention to the assessment of VAT in young people, to develop methods that would go beyond the measurement of only BMI in clinical practice and to identify individuals with excess visceral adiposity and perhaps to monitor its changes.


Assuntos
Doenças Cardiovasculares , Obesidade Infantil , Adulto , Humanos , Criança , Adolescente , Gordura Intra-Abdominal/metabolismo , Obesidade Infantil/metabolismo , Adiposidade , Fatores de Risco , Índice de Massa Corporal , Obesidade Abdominal , Doenças Cardiovasculares/etiologia
5.
J Nucl Cardiol ; 30(1): 298-312, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-34622428

RESUMO

Cardiac neuroendocrine tumors (NETs) are particularly rare tumors that can lead to a very poor clinical outcome, partly because of metastases but mainly because of manifestations of the hormonal activity they exhibit. Prompt diagnosis is important in order to start the most effective treatment for their removal or management, with the fewest complications. They are often difficult to diagnose, especially in their early stages. One of the reasons for this is that the heart is an organ with a high rate of metabolism and is located in close proximity to other high-metabolism organs. In addition, the anatomic location and their small size render their diagnosis extremely challenging. In recent years, hybrid imaging methods have revolutionized the diagnostic approach to oncology patients and have established a place in the diagnosis of cardiac NETs, because they provide both anatomical and functional information at the same time. Positron emission tomography/computed tomography (PET/CT), PET/magnetic resonance imaging (PET/MRI) and single-photon emission computed tomography/CT (SPECT/CT) are widely used in clinical practice because of the very important metabolic information, the high sensitivity and specificity. However, prospective studies are needed to confirm the true clinical and prognostic value of various hybrid imaging diagnostic techniques in cardiac NETs.


Assuntos
Neoplasias Cardíacas , Tumores Neuroendócrinos , Humanos , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Tomografia por Emissão de Pósitrons/métodos , Tomografia Computadorizada de Emissão de Fóton Único , Imagem Multimodal
6.
Hell J Nucl Med ; 26(3): 172-180, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38085832

RESUMO

OBJECTIVE: The purpose of this study was to evaluate the contribution of single photon emission computed tomography/computed tomography (SPECT/CT) standardized uptake value (SUV) metrics in classifying patients with suspected transthyretin cardiac amyloidosis (ATTR-CA) among the different Perugini grades. SUBJECTS AND METHODS: One hundred four patients suspected of ATTR-CA underwent planar scintigraphy with bone seeking tracer (99mTc pyrophosphate-PYP). Patients were classified according to the Perugini scale, the H/CL, H/Bone and H/Bkg ratios. A subset of 48 patients received additional SPECT/CT. Single photon emission computed tomography/CT SUV quantitative parameters, of the heart, myocardium, lungs, liver, soft tissues, bone, and SUV ratios (SUVmaxmyo, SUVmaxlungs, SUVmaxliver, SUVmaxbone and SUVmaxsoft tissue ratios), were evaluated in order to investigate potential metrics that could more clearly differentiate Perugini grades. RESULTS: A total of 33.7% of patients were considered grade 0, 34.6% grade 1 and 31.7% grade 2/3. A combination of H/CL >1.33 and H/Bone >0.85 showed the highest sensitivity 100%. Standardized uptake value-based metrics clearly differentiated grade 0 or 1 vs grades 2 or 3, whereas no significant difference was found between grades 0 and 1, or between grades 1 and 2. The combined cut-off values H/CL 1.33 and SUVmaxmyo 2.88 yielded 100% sensitivity and 84.6% specificity in differentiating ATTR-CA positives vs negatives. The metric SUVmaxmyo/SUVmaxliver was the best metric to classify patients with grade 1 as negative (grade 0) or positive (grade 2 or 3). CONCLUSION: Single photon emission computed tomography/CT SUV metrics could be complementary to planar scintigraphy in classifying patients among the different Perugini grades. The ratio SUVmaxmyo/SUVmaxliver was the only parameter with high affinity to differentiate patients with grade 1, as grade 0 or grade 2/3 for ATTR-CA.


Assuntos
Neuropatias Amiloides Familiares , Pré-Albumina , Humanos , Neuropatias Amiloides Familiares/diagnóstico por imagem , Tomografia Computadorizada com Tomografia Computadorizada de Emissão de Fóton Único/métodos , Tomografia Computadorizada de Emissão de Fóton Único , Cintilografia
7.
J Endovasc Ther ; 28(2): 352-359, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33412985

RESUMO

PURPOSE: To associate the impact of aortic reconstruction using currently available grafts and endografts on pulse wave velocity in patients with abdominal aortic aneurysm (AAA) and to evaluate its effect on early cardiac systolic function indices. MATERIALS AND METHODS: Seventy-three consecutive patients with AAA (mean age 70±8 years; all men) who underwent open (n=12) or endovascular repair (EVAR; n=61) were prospectively enrolled in an observational cohort study. Left ventricular global longitudinal strain (GLS; an important diagnostic and prognostic index of early systolic dysfunction) and carotid-femoral pulse wave velocity (cf-PWV) were estimated 1 week preoperatively, as well as at 1 and 6 months postoperatively. RESULTS: A significant time effect was found for cf-PWV, which showed an increase at 1 month that remained through 6 months (p=0.007). Additionally, a deterioration in GLS values was revealed, with a significant change at 1 month that persisted 6 months later (p<0.001). No significant group effect was observed between EVAR and open repair (p=0.98), and there was no significant interaction (p=0.96). Notably, the difference in GLS between baseline and 6 months significantly correlated with the corresponding changes in cf-PWV (r=0.494, p<0.001). CONCLUSION: AAA repair leads not only to an increase in aortic stiffness, as measured by the increase in pulse wave velocity, but also to reduced cardiac systolic function. Our findings highlight the need for a more intense cardiac surveillance program after aortic reconstruction. Further studies are needed to investigate how this may translate into long-term manifestations of cardiovascular complications and symptomatology.


Assuntos
Aneurisma da Aorta Abdominal , Procedimentos Endovasculares , Rigidez Vascular , Idoso , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aneurisma da Aorta Abdominal/cirurgia , Procedimentos Endovasculares/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Onda de Pulso , Resultado do Tratamento
8.
Heart Vessels ; 36(12): 1841-1847, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33983455

RESUMO

The mortality of patients with non-ischemic dilated cardiomyopathy (NIDCM) remains substantial. We evaluated gene expression levels of myocardin, an early cardiac gene, in the peripheral blood cells of NIDCM patients as a prognostic biomarker in their long-term outcome and mortality from congestive HF (CHF). We retrospectively analyzed 101 consecutives optimally treated NIDCM patients of Cretan origin who were enrolled from the HF clinic of our hospital from November 2005 to December 2008. Our patient data were either taken from their medical files or recorded during visits to the HF unit or hospitalizations. Follow-up was carried out by telephone interview and by accessing information from general practitioners and cardiologists in private practice. The median follow-up period was 8 years (mean follow-up 7 ± 3.4 years). The overall mortality during follow-up was 61.4%, while mortality due to congestive heart failure (CHF) was 49.5%. Higher CHF and all-cause mortality were observed in patients with myocardin levels < 14.26 (p < 0.001 for both CHF and all-cause mortality). A multivariate Cox regression analysis showed that myocardin level of expression had independent significant prognostic value for the risk of death from CHF (HR 14.5, 95% confidence interval (CI) 5.3-39) in those patients. Peripheral blood cells gene expression of myocardin, an early myocardial marker, may serve as prognostic biomarkers of the long-term outcome of patients with NIDCM. Our findings open new prospects in the risk stratification of these patients.


Assuntos
Cardiomiopatias , Cardiomiopatia Dilatada , Cardiomiopatia Dilatada/diagnóstico , Cardiomiopatia Dilatada/genética , Insuficiência Cardíaca/diagnóstico , Humanos , Proteínas Nucleares , Prognóstico , Estudos Retrospectivos , Transativadores
9.
Echocardiography ; 38(4): 646-656, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33749914

RESUMO

Mitral commissural prolapse or flail, either isolated or combined with more extensive degenerative valve disease, imposes several challenges both on its diagnosis and management while being a risk factor for valve reoperation after mitral valve repair. Accurate identification of the prolapsing segment is often not feasible with transthoracic 2D echocardiography, with transesophageal 3D imaging then required for correct diagnosis and surgical planning. Various surgical techniques employed alone or in combination have yielded good results in the repair of commissural prolapse. Herein, we analyze the specific characteristics of commissural disease focusing our attention on 2D and 3D echocardiographic findings and we briefly comment on techniques employed for surgical correction of the disease.


Assuntos
Ecocardiografia Tridimensional , Insuficiência da Valva Mitral , Prolapso da Valva Mitral , Ecocardiografia Transesofagiana , Humanos , Insuficiência da Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/cirurgia , Prolapso da Valva Mitral/diagnóstico por imagem , Prolapso da Valva Mitral/cirurgia , Prolapso
10.
Eur Heart J Suppl ; 23(Suppl B): B66-B69, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-34054365

RESUMO

Hypertension remains a major public health issue with inadequate control worldwide. The May Measurement Month (MMM) initiative by the International Society of Hypertension was implemented in Greece in 2019 aiming to raise hypertension awareness and control. Adult volunteers (≥18 years) were recruited through opportunistic screening in five urban areas. Information on medical history and triplicate sitting blood pressure (BP) measurements were obtained using validated automated upper-arm devices. Hypertension was defined as systolic BP ≥140 mmHg and/or diastolic ≥90 mmHg, and/or self-reported use of drugs for hypertension. A total of 5727 were analysed [mean age 52.7 (SD 16.6) years, men 46.5%, 88.3% had BP measurement in the last 18 months]. The prevalence of hypertension was (41.6%) and was higher in men and in older individuals. Among individuals with hypertension, 78.7% were diagnosed, 73.1% treated, and 48.3% controlled. Awareness, treatment, and control of hypertension were higher in women and in older individuals. Hypertensives had a higher body mass index (BMI) and were more likely to have diabetes, myocardial infarction and stroke, and less likely to smoke than normotensives (all P < 0.001). Among treated hypertensives, 65.1% were on monotherapy, and with increasing number of antihypertensive drugs the BP levels were higher and hypertension control rates lower. The prevalence of hypertension in Greece is high, with considerable potential for improving awareness, treatment, and control. Screening programmes, such as MMM, need to be widely implemented at the population level, together with training programmes for healthcare professionals aiming to optimise management and control.

11.
Heart Fail Rev ; 24(2): 219-226, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30255437

RESUMO

Obesity is a major risk factor for the development of chronic heart failure (CHF) and does not only pose diagnostic challenges, but also has prognostic implications for these patients. Paradoxically, obese patients with CHF have a better prognosis than thinner individuals. In recent years, it has been demonstrated that the adipose tissue, even in patients with HF, is not always detrimental, and that obesity may coexist with a phenotype of benign adiposity without systemic metabolic abnormalities. Experimental data have shown that natriuretic peptides (NPs), and in particular brain natriuretic peptide (BNP), play a major role in the communication of the heart with the adipose tissue. Body fat distribution and adipose tissue function show a large degree of heterogeneity among depots and may explain the complex relationship between NPs and body fat. NPs can affect both the quality and the behaviour of fatty tissue, promoting a healthy adipocyte phenotype, and can favourably affect body fat metabolism. In this article, we review the existing literature on the bidirectional effects of BNP and adipose tissue in HF and highlight the complexity of this relationship.


Assuntos
Adiposidade/fisiologia , Insuficiência Cardíaca/sangue , Peptídeo Natriurético Encefálico/metabolismo , Obesidade/complicações , Tecido Adiposo/metabolismo , Distribuição da Gordura Corporal/tendências , Insuficiência Cardíaca/fisiopatologia , Humanos , Hipertensão/complicações , Hipertensão/metabolismo , Hipertrofia Ventricular Esquerda/epidemiologia , Síndrome Metabólica/complicações , Síndrome Metabólica/metabolismo , Obesidade/epidemiologia , Fenótipo , Prevalência , Prognóstico , Fatores de Risco
12.
Ann Vasc Surg ; 58: 381.e11-381.e16, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30721727

RESUMO

Increased arterial stiffness has been related to altered cardiovascular hemodynamics, left ventricular hypertrophy, and a higher risk for cardiac events. Pulse wave velocity (PWV) has been used as a surrogate marker for arterial stiffness. Treatment of abdominal aortic aneurysms (AAAs) involves insertion of a rigid graft or endograft inside the arterial system which has been shown to increase arterial stiffness, but the cardiac implications of these alterations are mostly unknown. We report a case of a patient with a previous AAA surgical repair (>10 years ago) who developed a para-anastomotic pseudoaneurysm which was excluded with implantation of an endoluminal graft. From a cardiac perspective, this patient was asymptomatic and had a normal baseline preoperative evaluation. He had an initially high PWV (17 m/sec). Postprocedurally, the patient developed cardiac symptoms, and he underwent coronary angiography which indicated significant coronary artery disease, and he subsequently underwent bypass grafting. One week after the endovascular repair, the patient presented with an increased PWV at 21 m/sec. Echocardiographic indices were mostly unaltered (ejection fraction, left ventricular mass index, and left atrium volume index) compared with the preoperative evaluation, except for the global longitudinal strain which deteriorated from -25 to -21%. This case provides insight into hemodynamic alterations after implantation of an endograft which may result in deterioration of asymptomatic heart disease.


Assuntos
Falso Aneurisma/cirurgia , Aneurisma da Aorta Abdominal/cirurgia , Implante de Prótese Vascular/efeitos adversos , Doença da Artéria Coronariana/diagnóstico , Ecocardiografia , Procedimentos Endovasculares/efeitos adversos , Análise de Onda de Pulso , Rigidez Vascular , Idoso , Falso Aneurisma/diagnóstico por imagem , Falso Aneurisma/etiologia , Aneurisma da Aorta Abdominal/complicações , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aneurisma da Aorta Abdominal/fisiopatologia , Doenças Assintomáticas , Prótese Vascular , Implante de Prótese Vascular/instrumentação , Angiografia Coronária , Ponte de Artéria Coronária , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/fisiopatologia , Doença da Artéria Coronariana/cirurgia , Progressão da Doença , Procedimentos Endovasculares/instrumentação , Humanos , Masculino , Valor Preditivo dos Testes , Fatores de Risco , Resultado do Tratamento
13.
Clin Exp Pharmacol Physiol ; 45(11): 1213-1217, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29917257

RESUMO

Long non-coding RNAs (lncRNAs) participate in the modulation of cardiac hypertrophy, and they represent potential therapeutic targets in cardiovascular disease. We investigated the expression profiles of selected lncRNAs in peripheral blood mononuclear cells of patients with essential hypertension in relation to left ventricular hypertrophy. We assessed the expression levels of the lncRNAs MHRT, FENDRR and CARMEN using real-time reverse transcription polymerase chain reaction. Hypertensive patients showed significantly higher MHRT, FENDRR and CARMEN expression levels compared with healthy controls. In addition, we observed significant negative correlations of MHRT (r = -0.323, P = 0.003) and FENDRR (r = -0.380, P = 0.001) and a positive correlation of CARMEN (r = 0.458, P < 0.001) expression levels with left ventricular mass index. Our data reveal that the lncRNAs MHRT, FENDRR and CARMEN show distinct expression profiles in hypertensive patients and they possibly represent candidate therapeutic targets in hypertensive heart disease.


Assuntos
Cardiomegalia/complicações , Hipertensão Essencial/complicações , Hipertensão Essencial/genética , Regulação da Expressão Gênica , Leucócitos Mononucleares/metabolismo , RNA Longo não Codificante/genética , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
14.
Echocardiography ; 35(7): 1056-1059, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29749648

RESUMO

Anomalous origin of the left coronary artery arising from the pulmonary artery (ALCAPA or Bland-White-Garland syndrome) is a rare but serious congenital coronary artery anomaly, with a poor prognosis without surgical repair. There are two types of ALCAPA syndrome: infant type and adult type. We present a rare case of a 63-year-old female patient, with isolated left anterior descending artery origin from the pulmonary artery. Coronary computed tomography angiography revealed giant and tortuous coronary arteries with many collaterals between the left and right coronary system. The patient refused any surgical treatment.


Assuntos
Síndrome de Bland-White-Garland/diagnóstico , Angiografia por Tomografia Computadorizada/métodos , Angiografia Coronária/métodos , Vasos Coronários/diagnóstico por imagem , Ecocardiografia Doppler em Cores/métodos , Imageamento Tridimensional , Artéria Pulmonar/diagnóstico por imagem , Anomalias dos Vasos Coronários/diagnóstico , Feminino , Humanos , Pessoa de Meia-Idade , Artéria Pulmonar/anormalidades , Doenças Raras
15.
Curr Hypertens Rep ; 19(3): 22, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28283926

RESUMO

Blood pressure management in hypertensive patients with metabolic abnormalities is challenging, since many of the antihypertensive drugs adversely affect metabolism. Besides effective control of blood pressure in patients with hypertension, third-generation beta-blockers such as nebivolol offer additional benefits for central hemodynamics and neutral or beneficial effects on metabolism. Emerging clinical data suggest that nebivolol also has similar effects on metabolism in obese hypertensive and hypertensive diabetic patients. The present article will provide a systematic analysis of the pathophysiological links among hypertension, insulin resistance, and metabolic syndrome. We will also summarize the available clinical evidence regarding the metabolic effects of beta-blockers in hypertensive patients, with an emphasis on nebivolol. Nebivolol exerts neutral or beneficial effects on insulin sensitivity and lipid metabolism in hypertensive patients, owing to its nitric oxide-mediated vasodilatory and antioxidative properties. Thus, nebivolol could be a favorable therapeutic option for the treatment of hypertension in patients with impaired glucose and lipid metabolism.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/efeitos dos fármacos , Hipertensão/tratamento farmacológico , Síndrome Metabólica/tratamento farmacológico , Nebivolol/uso terapêutico , Diabetes Mellitus/tratamento farmacológico , Etanolaminas/farmacologia , Hemodinâmica/efeitos dos fármacos , Humanos , Resistência à Insulina , Óxido Nítrico/metabolismo
16.
J Muscle Res Cell Motil ; 35(2): 161-78, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24744096

RESUMO

Cardiac muscle contraction occurs through an interaction of the myosin head with the actin filaments, a process which is regulated by the troponin complex together with tropomyosin and is Ca(2+) dependent. Mutations in genes encoding sarcomeric proteins are a common cause of familial hypertrophic and dilated cardiomyopathies. The scope of this review is to gather information from studies regarding the in vitro characterisation of six HCM and six DCM mutations on the cardiac TnC gene and to suggest, if possible, how they may lead to dysfunction. Since TnC is the subunit responsible for Ca(2+) binding, mutations in the TnC could possibly have a strong impact on Ca(2+) binding affinities. Furthermore, the interactions of mutant TnCs with their binding partners could be altered. From the characterisation studies available to date, we can conclude that the HCM mutations on TnC increase significantly the Ca(2+) sensitivity of force development or of ATPase activity, producing large pCa shifts in comparison to WT TnC. In contrast, the DCM mutations on TnC have a tendency to decrease the Ca(2+) sensitivity of force development or of ATPase activity in comparison to WT TnC. Furthermore, the DCM mutants of TnC are not responsive to the TnI phosphorylation signal resulting in filaments that preserve their Ca(2+) sensitivity in contrast to WT filaments that experience a decrease in Ca(2+) sensitivity upon TnI phosphorylation.


Assuntos
Cardiomiopatia Dilatada/metabolismo , Tropomiosina/metabolismo , Troponina C/metabolismo , Sequência de Aminoácidos , Animais , Cálcio/metabolismo , Cardiomiopatia Dilatada/genética , Humanos , Modelos Moleculares , Dados de Sequência Molecular , Músculo Esquelético/metabolismo , Tropomiosina/química , Tropomiosina/genética , Troponina C/química , Troponina C/genética
17.
Genes (Basel) ; 15(6)2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38927607

RESUMO

Cardiac remodeling and ventricular pacing represent intertwined phenomena with profound implications for cardiovascular health and therapeutic interventions. This review explores the intricate relationship between cardiac remodeling and ventricular pacing, spanning from the molecular underpinnings to biomechanical alterations. Beginning with an examination of genetic predispositions and cellular signaling pathways, we delve into the mechanisms driving myocardial structural changes and electrical remodeling in response to pacing stimuli. Insights into the dynamic interplay between pacing strategies and adaptive or maladaptive remodeling processes are synthesized, shedding light on the clinical implications for patients with various cardiovascular pathologies. By bridging the gap between basic science discoveries and clinical translation, this review aims to provide a comprehensive understanding of cardiac remodeling in the context of ventricular pacing, paving the way for future advancements in cardiovascular care.


Assuntos
Remodelação Ventricular , Humanos , Remodelação Ventricular/genética , Animais , Ventrículos do Coração/fisiopatologia , Estimulação Cardíaca Artificial/métodos
18.
J Clin Med ; 13(4)2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38398330

RESUMO

Cardiac magnetic resonance (CMR) imaging has an important emerging role in the evaluation and management of patients with cardiomyopathies, especially in patients with dilated cardiomyopathy (DCM). It allows a non-invasive characterization of myocardial tissue, thus assisting early diagnosis and precise phenotyping of the different cardiomyopathies, which is an essential step for early and individualized treatment of patients. Using imaging techniques such as late gadolinium enhancement (LGE), standard and advanced quantification as well as quantitative mapping parameters, CMR-based tissue characterization is useful in the differential diagnosis of DCM and risk stratification. The purpose of this article is to review the utility of CMR in the diagnosis and management of idiopathic DCM, as well as risk prediction and prognosis based on standard and emerging CMR contrast and non-contrast techniques. This is consistent with current evidence and guidance moving beyond traditional prognostic markers such as ejection fraction.

19.
Am J Hypertens ; 37(4): 298-305, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-37976292

RESUMO

BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is a major health issue with high morbidity and mortality. The epidemiology and the factors that cause HFpEF have not been fully clarified, while accurate predictive biomarkers are lacking. Our aim was to determine whether levels of microRNA-21 (miR-21) in peripheral blood monocytes, which play a critical role in many pathophysiological pathways of hypertensive heart disease, can predict the occurrence of HFpEF in older hypertensives, as well as the associated mortality and morbidity. METHODS: We enrolled 151 elderly patients >60 years old with essential hypertension but without HF at baseline. miRs expression levels in peripheral blood mononuclear cells had been quantified by real-time reverse transcription polymerase chain reaction. RESULTS: During a median follow-up of 8.2 years, 56 patients (37%) had an event. Levels of miR-21 in peripheral mononuclear blood cells proved to be significantly associated with the occurrence of HFpEF. More specifically, the median HFpEF-free period was 110 months for those with miR-21 >2.1 and 114 months for those with miR-21 <2.1. In addition, multivariate analysis showed that miR-21 (hazard ratio 11.14), followed by hemoglobin (Hg) (hazard ratio 0.56 for Hg >13.6 g/dl, a 45% risk reduction), were independent and the most significant predictors of HFpEF events. CONCLUSIONS: miR-21 levels in peripheral blood monocytes are associated with the development of future HFpEF. Our findings may alter the risk models of HFpEF and support the rationale for further research into the modulation of miRs as biomarkers and treatment targets for HFpEF.


Assuntos
Insuficiência Cardíaca , Hipertensão , Mercúrio , MicroRNAs , Humanos , Idoso , Pessoa de Meia-Idade , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/genética , Volume Sistólico/fisiologia , Leucócitos Mononucleares , Prognóstico , Biomarcadores , Hipertensão/diagnóstico , Hipertensão/epidemiologia , Hipertensão/genética , Hemoglobinas , MicroRNAs/genética
20.
J Hypertens ; 42(7): 1109-1132, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38690949

RESUMO

Hypertensive disorders in pregnancy (HDP), remain the leading cause of adverse maternal, fetal, and neonatal outcomes. Epidemiological factors, comorbidities, assisted reproduction techniques, placental disorders, and genetic predisposition determine the burden of the disease. The pathophysiological substrate and the clinical presentation of HDP are multifarious. The latter and the lack of well designed clinical trials in the field explain the absence of consensus on disease management among relevant international societies. Thus, the usual clinical management of HDP is largely empirical. The current position statement of the Working Group 'Hypertension in Women' of the European Society of Hypertension (ESH) aims to employ the current evidence for the management of HDP, discuss the recommendations made in the 2023 ESH guidelines for the management of hypertension, and shed light on controversial issues in the field to stimulate future research.


Assuntos
Hipertensão Induzida pela Gravidez , Feminino , Humanos , Gravidez , Anti-Hipertensivos/uso terapêutico , Europa (Continente) , Hipertensão Induzida pela Gravidez/terapia , Complicações Cardiovasculares na Gravidez/terapia , Complicações Cardiovasculares na Gravidez/fisiopatologia , Sociedades Médicas/normas , Guias de Prática Clínica como Assunto
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