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1.
Heart Fail Rev ; 28(4): 1009-1022, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36385328

RESUMO

For decades, cardiologists have largely underestimated the role of the right heart in heart failure due to left heart disease. Nowadays, the importance of evaluating right ventricular (RV) structure and function in left heart failure is well documented and this concept has been emphasized in the most recent heart failure guidelines. However, several relevant questions remain unanswered such as the following: (a) which imaging technique (standard or 3D echocardiography or strain imaging or cardiac magnetic resonance) and, more, which parameters should be used to grade the severity of RV dysfunction? (b) do less widespread and less applied diagnostic tools such as cardiopulmonary stress testing and bioelectrical impedance analysis play a role in this field? (c) are there specific biochemical aspects of RV failure? (d) why notion of pathophysiology of heart and lung interaction are so well appreciated at an academic level but are not applied in the clinical setting? The present review has been prepared by the Heart Failure (HF) working group of the Italian Society of Cardiology and its main objective is to improve our understanding on RV dysfunction in heart failure.


Assuntos
Ecocardiografia Tridimensional , Insuficiência Cardíaca , Disfunção Ventricular Direita , Humanos , Ecocardiografia/métodos , Disfunção Ventricular Direita/diagnóstico por imagem , Disfunção Ventricular Direita/etiologia , Ventrículos do Coração/diagnóstico por imagem , Função Ventricular Direita/fisiologia , Volume Sistólico/fisiologia
2.
Cardiovasc Diabetol ; 22(1): 235, 2023 09 02.
Artigo em Inglês | MEDLINE | ID: mdl-37660005

RESUMO

BACKGROUND: Randomized controlled trials (RCTs) reported contrasting results about reverse left ventricular remodeling (LVR) after sodium-glucose co-transporter-2 inhibitors (SGLT2i) therapy in patients with heart failure (HF). METHODS AND RESULTS: We performed a metanalysis of RCTs of SGLT2i administration in HF outpatients published until June 2022 searching four electronic databases. The protocol has been published in PROSPERO. Primary LVR outcome was change in absolute LV end-diastolic (LVEDV) and end-systolic volume (LVESV) from baseline to study endpoint. Secondary outcomes included changes in LVEDV and LVESV indexed to body surface area, LV Mass index (LVMi), LV ejection fraction (LVEF), and N-terminal pro-B-type natriuretic peptide (NTproBNP). Mean differences (MDs) with 95% CIs were pooled. A total of 9 RCTs (1385 patients) were analyzed. All of them reported data on LVEF. Six trials reported data on LVESV and LVEDV (n = 951); LVMi was available in 640. SGLT2i treatment significantly reduced LVEDV [MD= -10.59 ml (-17.27; -3.91), P = 0.0019], LVESV [MD= -8.80 ml (-16.91; -0.694), P = 0.0334], and LVMI [MD= -5.34 gr/m2 (-9.76; -0.922), P = 0.0178], while LVEF significantly increased [MD = + 1.98% (0.67; 0.306), P = 0.0031]. By subgroup analysis, the beneficial effects of SGLT2i on LVEF did not differ by imaging method used, time to follow-up re-evaluation, or HF phenotype. Reduction in LV volumes tended to be greater in HF with reduced EF (HFrEF) than in those with preserved EF (HFpEF), while the opposite was observed for LVMi. CONCLUSIONS: Treatment with SGLT2i significantly reversed cardiac volumes, improving LV systolic function and LV mass, particularly in HFrEF patients.


Assuntos
Insuficiência Cardíaca , Inibidores do Transportador 2 de Sódio-Glicose , Humanos , Diástole , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/tratamento farmacológico , Inibidores do Transportador 2 de Sódio-Glicose/efeitos adversos , Remodelação Ventricular , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
Heart Fail Rev ; 27(5): 1605-1616, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34618287

RESUMO

Impaired cardiac energy metabolism has been proposed as a mechanism common to different heart failure aetiologies. The energy-depletion hypothesis was pursued by several researchers, and is still a topic of considerable interest. Unlike most organs, in the heart, the creatine kinase system represents a major component of the metabolic machinery, as it functions as an energy shuttle between mitochondria and cytosol. In heart failure, the decrease in creatine level anticipates the reduction in adenosine triphosphate, and the degree of myocardial phosphocreatine/adenosine triphosphate ratio reduction correlates with disease severity, contractile dysfunction, and myocardial structural remodelling. However, it remains to be elucidated whether an impairment of phosphocreatine buffer activity contributes to the pathophysiology of heart failure and whether correcting this energy deficit might prove beneficial. The effects of creatine deficiency and the potential utility of creatine supplementation have been investigated in experimental and clinical models, showing controversial findings. The goal of this article is to provide a comprehensive overview on the role of creatine in cardiac energy metabolism, the assessment and clinical value of creatine deficiency in heart failure, and the possible options for the specific metabolic therapy.


Assuntos
Creatina , Insuficiência Cardíaca , Trifosfato de Adenosina/metabolismo , Creatina/metabolismo , Creatina/farmacologia , Metabolismo Energético/fisiologia , Humanos , Mitocôndrias Cardíacas/metabolismo , Miocárdio/metabolismo , Fosfocreatina/metabolismo
4.
J Cardiovasc Pharmacol ; 79(6): 896-903, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35249963

RESUMO

ABSTRACT: Shock and subsequent resuscitation provoke ischemia-reperfusion injury. Trimetazidine (TMZ), allopurinol (ALO), and histidine-tryptophan-ketoglutarate (HTK) solution, can protect from ischemia-reperfusion injury in chronic coronary syndromes and in transplantation. The objective of the current study is to compare, in a hemorrhagic shock and standard resuscitation animal model, organ damage parameters between placebo and treatment with TMZ, ALO, or HTK. Shock was induced in Wistar rats by controlled arterial bleeding, maintaining mean arterial pressure between 38 and 42 mm Hg for 60 minutes; then, drawn blood was reinfused. Animals were divided into: Sham (n = 4), Control (n = 6), TMZ (n = 7), ALO (n = 9), and HTK (n = 7). At the end of the experiment, animals were sacrificed and tissue harvested. TMZ, ALO and HTK decreased histopathologic damage in heart [Control: 1.72 (1.7-1.77); TMZ: 1.75 (1.72-1.79); ALO: 1.75 (1.74-1.8); HTK: 1.82 (1.78-1.85); all P < 0.05], kidney [Control: 3 (2-3); TMZ: 1 (1-2); ALO: 1 (1-1); HTK: 1(1-1); all P < 0.05] and intestine [Control: 3 (2-3); TMZ: 1 (1-2); ALO: 1 (1-1); HTK: 1 (0-2); all P < 0.05]. Also, treatment with TMZ, ALO, and HTK increased immunohistochemical expression of thioredoxin-1 in heart [Control: 6.6 (5.6-7.4); TMZ: 9.5 (8.1-9.7); ALO: 9.1 (8.4-10.2); HTK: 14.2 (12.6-15); all P < 0.05]; and kidney [Control: 4.6 (4-5.1); TMZ: 9.7 (9.3-9.9); ALO: 9.6 (9-9.9); HTK: 16.7 (16.1-17); all P < 0.05]. In an experimental model of hemorrhagic shock, TMZ, ALO, and HTK solution attenuated cell damage in multiple parenchyma and increased antioxidant defenses.


Assuntos
Fármacos Cardiovasculares , Soluções para Preservação de Órgãos , Traumatismo por Reperfusão , Choque Hemorrágico , Alopurinol , Animais , Modelos Animais de Doenças , Glucose , Glutationa , Insulina , Manitol/farmacologia , Soluções para Preservação de Órgãos/farmacologia , Cloreto de Potássio/farmacologia , Procaína , Ratos , Ratos Wistar , Choque Hemorrágico/tratamento farmacológico
5.
Blood Press ; 30(1): 75-78, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32870038

RESUMO

In this report we present a case of missed hypertension due to subclavian artery stenosis. A 77 year-old female patient, initially thought as being normotensive, was referred to us due to newly discovered systolic heart murmur suspicious for aortic stenosis. We noted inter-arm blood pressure difference of 30 mmHg, with higher, hypertensive values on right arm. Further workup and medical imaging excluded aortic stenosis and revealed an asymptomatic, hemodynamically significant, stenosis of left subclavian artery. Due to absence of symptoms, the patient has been managed with conservative therapy for subclavian stenosis and hypertension, and she is currently in good conditions and followed up for any signs of disease progression. This case clearly shows importance of measuring blood pressure on both arms when initially diagnosing hypertension as this is often overlooked and is key to properly diagnose hypertension and possible subclavian stenosis.


Assuntos
Hipertensão/diagnóstico , Síndrome do Roubo Subclávio/diagnóstico , Sopros Sistólicos/diagnóstico , Idoso , Pressão Sanguínea , Feminino , Humanos , Artéria Subclávia/patologia
6.
Am Heart J ; 224: 113-128, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32361531

RESUMO

Heart failure (HF) management is challenging due to high clinical heterogeneity of this disease which makes patients responding differently to evidence-based standard therapy established by the current reductionist approach. Better understanding of the genetic and epigenetic interactions may clarify molecular signatures underlying maladaptive responses in HF, including metabolic shift, myocardial injury, fibrosis, and mitochondrial dysfunction. DNA methylation, histone modifications and micro-RNA (miRNAs) may be major epigenetic players in the pathogenesis of HF. DNA hypermethylation of the kruppel-like factor 15 (KLF15) gene plays a key role in switching the failing heart from oxidative to glycolytic metabolism. Moreover, hypomethylation at H3K9 promoter level of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) genes also leads to reactivation of fetal genes in man. The role of miRNAs has been investigated in HF patients undergoing heart transplantation, for whom miR-10a, miR-155, miR-31, and miR-92 may be putative useful prognostic biomarkers. Recently, higher RNA methylation levels have been observed in ischemic human hearts, opening the era of "epitranscriptome" in the pathogenesis of HF. Currently, hydralazine, statins, apabetalone, and omega-3 polyunsatured fatty acids (PUFA) are being tested in clinical trials to provide epigenetic-driven therapeutic interventions. Moreover, network-oriented analysis could advance current medical practice by focusing on protein-protein interactions (PPIs) perturbing the "cardiac" interactome. In this review, we provide an epigenetic map of maladaptive responses in HF patients. Furthermore, we propose the "EPi-transgeneratIonal network mOdeling for STratificatiOn of heaRt Morbidity" (EPIKO-STORM), a clinical research strategy offering novel opportunities to stratify the natural history of HF.


Assuntos
Epigênese Genética/genética , Insuficiência Cardíaca/genética , Peptídeo Natriurético Encefálico/sangue , Medicina de Precisão/métodos , Volume Sistólico/fisiologia , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/fisiopatologia , Humanos , Miocárdio/metabolismo , Fenótipo
7.
Am Heart J ; 220: 82-88, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31790905

RESUMO

BACKGROUND: Type 2 diabetes (T2D) patients are at increased risk for cardiovascular (CV) events. Most guidelines recommend treating low-density lipoprotein cholesterol (LDL-C) levels to ≤70 mg/dL (1.8 mM) for patients with T2D and established atherosclerotic CV disease, and some a more aggressive target of ≤55 mg/dL (1.4 mM). Our objective was to assess the degree to which these LDL-C targets are achieved in routine practice. METHODS: Using data from TECOS, an international pragmatic CV outcomes trial of sitagliptin vs placebo, we assessed lipid-lowering treatment among patients with T2D and CV disease, baseline lipid values, and the association between baseline LDL-C and 5-year risk for major adverse cardiac events (MACE; ie, CV death, nonfatal myocardial infarction, or nonfatal stroke). RESULTS: Overall, 11,066 of 14,671 TECOS participants (75.4%) had LDL-C measured at baseline. Median age was 65 years, 72% were male, and median T2D duration was 10 years. Overall, 82.5% of patients were on statins; only 5.8% were on ezetimibe. At baseline, 14.3% had LDL-C ≤55 mg/dL, 18.4% between 55.1 and 70 mg/dL, 35% between 70.1 and 100 mg/dL, and 32.3% >100 mg/dL. Each 10 mg/dL higher LDL-C value was associated with a higher risk of MACE (HR 1.05, 95% CI 1.03-1.07) or CV death (HR 1.06, 95% CI 1.04-1.09). CONCLUSIONS: Although most high-risk patients with T2D and CV disease were on lipid-lowering therapy, only 1:3 had LDL-C <70 mg/dL and 1:6 had LDL-C <55 mg/dL. Each 10 mg/dL higher LDL-C value was associated with a 5% and 6% higher 5-year incidence of MACE and CV death, respectively. (TECOS, NCT00790205).


Assuntos
Aterosclerose/sangue , LDL-Colesterol/sangue , Diabetes Mellitus Tipo 2/sangue , Idoso , Aterosclerose/prevenção & controle , Doenças Cardiovasculares/mortalidade , Diabetes Mellitus Tipo 2/tratamento farmacológico , Método Duplo-Cego , Ezetimiba/uso terapêutico , Feminino , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipoglicemiantes/uso terapêutico , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Valores de Referência , Fosfato de Sitagliptina/uso terapêutico , Acidente Vascular Cerebral/epidemiologia
8.
Heart Fail Rev ; 25(2): 295-303, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31410756

RESUMO

Transition from stage C to stage D of heart failure (HF) represents an irreversible process toward end-stage disease. Crucial interventions to be adopted in the attempt to interfere with this process are represented by the identification of patients at high risk to develop HF progression and by an effective and prompt management. Markers of worse prognosis and disease progression are well established and include recurrence of HF decompensation, intolerance to the neurohormonal standard pharmacological treatment, and resistance to loop diuretics. In addition, both NT-proBNP and sympathetic nervous system (SNS) overdrive are strong predictors of adverse clinical outcome and allow to identify high-risk HF patients even in the presence of mild symptoms. To counteract the deleterious effects of the SNS activation, new strategies such as a new drug combining angiotensin receptor and neprilysin inhibition and baroreceptor stimulation therapy (BAT) have been investigated. Inability to properly counteract the SNS overdrive leads to acute HF decompensation by different mechanisms. The leading ones are represented by the progressive sodium and water retention with fluid overload and by the blood volume redistribution between splanchnic and non-splanchnic regions. The correct understanding of these mechanisms, together with the availability of new therapeutic options such as peritoneal ultrafiltration, represent the rationale but not infrequently overlooked therapeutic options to improve congestion management in HF patients.


Assuntos
Antagonistas de Receptores de Angiotensina/uso terapêutico , Insuficiência Cardíaca/terapia , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Volume Sistólico/fisiologia , Biomarcadores/sangue , Progressão da Doença , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/fisiopatologia , Humanos , Fatores de Risco
9.
Heart Fail Rev ; 25(1): 21-30, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31686283

RESUMO

Coronary artery disease is a major underlying etiology for heart failure. The role of coronary microvascular disease, and endothelial dysfunction, in the pathophysiology of heart failure is poorly appreciated. Endothelial dysfunction, induced by oxidative stress, contributes to the development of heart failure. Alterations of endothelial function and nitric oxide-cyclic guanosine monophosphate (NO-cGMP) pathway are involved in the pathophysiology of heart failure with both reduced and preserved ejection fraction. Indeed, an altered endothelium dependent vasodilatation, causing repeated episodes of ischemia/reperfusion, can induce a chronic stunned myocardium with systolic dysfunction and an increased diastolic stiffness with diastolic dysfunction. Moreover, the altered NO-cGMP pathway directly affects myocardial homeostasis. Endothelial dysfunction is associated with worse prognosis and higher rate of cardiovascular events. Potential therapeutic strategies targeting the NO-cGMP pathway in patients with HF will be discussed in this review article. Although clinical data are still inconclusive, the NO-cGMP pathway represents a promising target for therapy.


Assuntos
Endotélio Vascular/fisiopatologia , Insuficiência Cardíaca/fisiopatologia , GMP Cíclico/metabolismo , Endotélio Vascular/metabolismo , Humanos , Microcirculação , Músculo Esquelético/irrigação sanguínea , Miocárdio/patologia , Óxido Nítrico/metabolismo , Prognóstico , Transdução de Sinais , Disfunção Ventricular Esquerda/fisiopatologia
10.
Biomarkers ; 25(2): 201-211, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32063068

RESUMO

Background: Heart failure with preserved ejection fraction (HFpEF) is a heterogeneous syndrome for which clear evidence of effective therapies is lacking. Understanding which factors determine this heterogeneity may be helped by better phenotyping. An unsupervised statistical approach applied to a large set of biomarkers may identify distinct HFpEF phenotypes.Methods: Relevant proteomic biomarkers were analyzed in 392 HFpEF patients included in Metabolic Road to Diastolic HF (MEDIA-DHF). We performed an unsupervised cluster analysis to define distinct phenotypes. Cluster characteristics were explored with logistic regression. The association between clusters and 1-year cardiovascular (CV) death and/or CV hospitalization was studied using Cox regression.Results: Based on 415 biomarkers, we identified 2 distinct clusters. Clinical variables associated with cluster 2 were diabetes, impaired renal function, loop diuretics and/or betablockers. In addition, 17 biomarkers were higher expressed in cluster 2 vs. 1. Patients in cluster 2 vs. those in 1 experienced higher rates of CV death/CV hospitalization (adj. HR 1.93, 95% CI 1.12-3.32, p = 0.017). Complex-network analyses linked these biomarkers to immune system activation, signal transduction cascades, cell interactions and metabolism.Conclusion: Unsupervised machine-learning algorithms applied to a wide range of biomarkers identified 2 HFpEF clusters with different CV phenotypes and outcomes. The identified pathways may provide a basis for future research.Clinical significanceMore insight is obtained in the mechanisms related to poor outcome in HFpEF patients since it was demonstrated that biomarkers associated with the high-risk cluster were related to the immune system, signal transduction cascades, cell interactions and metabolismBiomarkers (and pathways) identified in this study may help select high-risk HFpEF patients which could be helpful for the inclusion/exclusion of patients in future trials.Our findings may be the basis of investigating therapies specifically targeting these pathways and the potential use of corresponding markers potentially identifying patients with distinct mechanistic bioprofiles most likely to respond to the selected mechanistically targeted therapies.


Assuntos
Insuficiência Cardíaca/fisiopatologia , Fenótipo , Idoso , Biomarcadores/análise , Análise por Conglomerados , Feminino , Humanos , Aprendizado de Máquina , Masculino , Pessoa de Meia-Idade , Proteômica , Volume Sistólico
11.
Echocardiography ; 37(8): 1213-1221, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32762102

RESUMO

OBJECTIVES: To analyze left ventricular (LV) myocardial deformation and contractile reserve (CR) in asymptomatic patients with severe aortic regurgitation (AR) at rest and during exercise, and their correlation with functional capacity. BACKGROUND: The natural history of chronic AR is characterized by a prolonged silent phase before onset of symptoms and overt LV dysfunction. Assessment of LV systolic function and contractile reserve has an important role in the decision-making of AR asymptomatic patients. METHODS: Standard echo, lung ultrasound, and LV 2D speckle tracking strain were performed at rest and during exercise in asymptomatic patients with severe AR and in age- and sex-comparable healthy controls. RESULTS: 115 AR patients (male sex 58.2%; 52.3 ± 18.3 years) and 55 controls were enrolled. Baseline LV ejection fraction was comparable between the groups. Resting LV global longitudinal strain (GLS) and myocardial work efficiency (MWE) were significantly reduced in AR (GLS-15.8 ± 2.8 vs -21.4 ± 4.4; P < .001). Patients with AR and CR- showed reduced resting LV GLS and MWE and increased B-lines. MWE was closely related to peak effort watts, VO2 , LV E/e', and B-lines, at a multivariable analysis. Both GLS and MWE were strong independent predictors of CR. A resting LV GLS cutoff of -12% differentiated CR+ and CR- (78% sensitivity and 84% specificity). CONCLUSIONS: The lower resting values of LV GLS and MWE in severe AR asymptomatic patients suggest an early subclinical myocardial damage that seems to be closely associated with lower exercise capacity, greater pulmonary congestion, and blunted LV contractile reserve during stress.


Assuntos
Insuficiência da Valva Aórtica , Disfunção Ventricular Esquerda , Insuficiência da Valva Aórtica/diagnóstico por imagem , Ecocardiografia sob Estresse , Ventrículos do Coração/diagnóstico por imagem , Humanos , Masculino , Volume Sistólico , Disfunção Ventricular Esquerda/diagnóstico por imagem , Função Ventricular Esquerda
12.
J Electrocardiol ; 62: 1-4, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32731138

RESUMO

Ventricular pacing may interfere with the interpretation of ECG among patients with suspected acute myocardial infarction (AMI), with possible delay of reperfusion therapy. Since left bundle branch block has a similar ECG morphology to right ventricular paced rhythm, Sgarbossa and modified Sgarbossa criteria could be useful in this setting. We present four clinical cases in which a recently proposed clinical-instrumental algorithm has been adopted to manage patients with right ventricular paced rhythm and suspected AMI.


Assuntos
Eletrocardiografia , Infarto do Miocárdio , Algoritmos , Bloqueio de Ramo , Ventrículos do Coração , Humanos , Infarto do Miocárdio/diagnóstico
13.
J Clin Ultrasound ; 48(9): 579-584, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32249937

RESUMO

Exercise-induced ST-segment changes simulating myocardial ischemia have been described in otherwise normal subjects during hyperventilation. We present the case of a 60-year-old man with pectus excavatum showing significant exercise-induced "pseudo-ischaemic" ST-segment changes with neither coronary artery disease nor anxiety-induced hyperventilation. We found no report of the possible causative role of a narrow antero-posterior chest diameter in inducing "pseudo-ischaemic" ST-segment changes during exercise stress test in the literature.


Assuntos
Tórax em Funil/fisiopatologia , Angiografia Coronária , Doença da Artéria Coronariana , Eletrocardiografia/métodos , Teste de Esforço , Feminino , Tórax em Funil/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico por imagem , Isquemia Miocárdica/fisiopatologia
14.
Int J Mol Sci ; 21(19)2020 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-32998408

RESUMO

Despite relevant advances made in therapies for cardiovascular diseases (CVDs), they still represent the first cause of death worldwide. Cardiac fibrosis and excessive extracellular matrix (ECM) remodeling are common end-organ features in diseased hearts, leading to tissue stiffness, impaired myocardial functional, and progression to heart failure. Although fibrosis has been largely recognized to accompany and complicate various CVDs, events and mechanisms driving and governing fibrosis are still not entirely elucidated, and clinical interventions targeting cardiac fibrosis are not yet available. Immune cell types, both from innate and adaptive immunity, are involved not just in the classical response to pathogens, but they take an active part in "sterile" inflammation, in response to ischemia and other forms of injury. In this context, different cell types infiltrate the injured heart and release distinct pro-inflammatory cytokines that initiate the fibrotic response by triggering myofibroblast activation. The complex interplay between immune cells, fibroblasts, and other non-immune/host-derived cells is now considered as the major driving force of cardiac fibrosis. Here, we review and discuss the contribution of inflammatory cells of innate immunity, including neutrophils, macrophages, natural killer cells, eosinophils and mast cells, in modulating the myocardial microenvironment, by orchestrating the fibrogenic process in response to tissue injury. A better understanding of the time frame, sequences of events during immune cells infiltration, and their action in the injured inflammatory heart environment, may provide a rationale to design new and more efficacious therapeutic interventions to reduce cardiac fibrosis.


Assuntos
Comunicação Celular/imunologia , Fibrose Endomiocárdica/imunologia , Imunidade Inata , Traumatismo por Reperfusão Miocárdica/imunologia , Miocárdio/imunologia , Miofibroblastos/imunologia , Imunidade Adaptativa , Animais , Citocinas/imunologia , Citocinas/metabolismo , Fibrose Endomiocárdica/metabolismo , Fibrose Endomiocárdica/patologia , Eosinófilos/imunologia , Eosinófilos/metabolismo , Eosinófilos/patologia , Matriz Extracelular/química , Matriz Extracelular/imunologia , Matriz Extracelular/metabolismo , Humanos , Inflamação , Células Matadoras Naturais/imunologia , Células Matadoras Naturais/metabolismo , Células Matadoras Naturais/patologia , Macrófagos/imunologia , Macrófagos/metabolismo , Macrófagos/patologia , Mastócitos/imunologia , Mastócitos/metabolismo , Mastócitos/patologia , Traumatismo por Reperfusão Miocárdica/metabolismo , Traumatismo por Reperfusão Miocárdica/patologia , Miocárdio/patologia , Miofibroblastos/metabolismo , Miofibroblastos/patologia , Neutrófilos/imunologia , Neutrófilos/metabolismo , Neutrófilos/patologia
15.
Am Heart J ; 218: 57-65, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31707329

RESUMO

International differences in management/outcomes among patients with type 2 diabetes and heart failure (HF) are not well characterized. We sought to evaluate geographic variation in treatment and outcomes among these patients. METHODS AND RESULTS: Among 14,671 participants in the Trial Evaluating Cardiovascular Outcomes with Sitagliptin (TECOS), those with HF at baseline and a documented ejection fraction (EF) (N = 1591; 10.8%) were categorized by enrollment region (North America, Latin America, Western Europe, Eastern Europe, and Asia Pacific). Cox models were used to examine the association between geographic region and the primary outcome of all-cause mortality (ACM) or hospitalization for HF (hHF) in addition to ACM alone. Analyses were stratified by those with EF <40% or EF ≥40%. The majority of participants with HF were enrolled in Eastern Europe (53%). Overall, 1,267 (79.6%) had EF ≥40%. ß-Blocker (83%) and angiotensin-converting enzyme inhibitor/angiotensin receptor blocker (86%) use was high across all regions in patients with EF <40%. During a median follow-up of 2.9 years, Eastern European participants had lower rates of ACM/hHF compared with North Americans (adjusted hazard ratio: 0.45; 95% CI: 0.32-0.64). These differences were seen only in the EF ≥40% subgroup and not the EF <40% subgroup. ACM was similar among Eastern European and North American participants (adjusted hazard ratio: 0.79; 95% CI: 0.44-1.45). CONCLUSIONS: Significant variation exists in the clinical features and outcomes of HF patients across regions in TECOS. Patients from Eastern Europe had lower risk-adjusted ACM/hHF than those in North America, driven by those with EF ≥40%. These data may inform the design of future international trials.


Assuntos
Diabetes Mellitus Tipo 2/mortalidade , Insuficiência Cardíaca/mortalidade , Antagonistas Adrenérgicos beta/uso terapêutico , Idoso , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Ásia , Causas de Morte , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diuréticos/uso terapêutico , Método Duplo-Cego , Europa (Continente) , Feminino , Seguimentos , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Hospitalização , Humanos , Hipoglicemiantes/uso terapêutico , Estimativa de Kaplan-Meier , América Latina , Masculino , Pessoa de Meia-Idade , América do Norte , Modelos de Riscos Proporcionais , Fosfato de Sitagliptina/uso terapêutico , Volume Sistólico , Resultado do Tratamento
16.
Pharmacol Res ; 148: 104418, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31479749

RESUMO

Efficacy and safety profiles of different pharmacological interventions used to treat patent ductus arteriosus (PDA) are relatively unexplored. Integrating the findings of randomized clinical trials (RCTs) with those from observational studies may provide key evidence on this important issue. We aimed at estimating the relative likelihood of failure to close the PDA, need for surgical closure, and occurrence of adverse events among preterm and full-term infants treated with indomethacin, ibuprofen, or acetaminophen, placebo, or no treatment including both RCTs and observational studies. We searched PubMed, Embase, and the Register of Controlled Trials from inception to October 30, 2018. We first estimated proportions of subjects with failure to close the PDA, subjects in whom surgical closure was performed after pharmacological treatment, death, and subjects with selected adverse events (AEs). These estimates were obtained using frequentist random-effect meta-analysis of arm-specific proportions. We then compared active drugs with each other and with control (either placebo or no treatment) by summarizing results at the end of treatment reported in the papers, regardless of number of administration(s), dose, route and type of administration, and study design and quality. We also summarized primary outcome results separately at first, second and third cycles of treatment. These estimates were obtained using Bayesian random-effects network meta-analysis for mixed comparisons, and frequentist random-effect pairwise meta-analysis for direct comparisons. We included 64 RCTs and 24 observational studies including 14,568 subjects (5339 in RCTs and 9229 in observational studies, 8292 subjects received indomethacin, 4761 ibuprofen, 574 acetaminophen, and 941 control (including placebo or no intervention).The proportion of subjects with failure to close the PDA was 0.24 (95% Confidence Interval, CI: 0.20, 0.29) for indomethacin, 0.18 (0.14, 0.22) for ibuprofen, 0.19 (0.09, 0.30) for acetaminophen, and 0.59 (0.48, 0.69) for control. At end of treatment, compared to control, we found inverse associations between all active drugs and failure to close PDA (for indomethacin Odds Ratio, OR, was 0.17 [95% Credible Interval, CrI: 0.11-0.24], ibuprofen 0.19 [0.12-0.28], and acetaminophen 0.15 [0.09-0.26]), without differences among active drugs. We showed inverse associations between effective drugs and need for surgical closure, as compared to control (for indomethacin OR was 0.28 [0.15-0.50], ibuprofen 0.30 [0.16-0.54], and acetaminophen 0.19 [0.07-0.46]), without differences among drugs. Indomethacin was directly associated with intraventricular hemorrhage (IVH) (1.27; 1.00, 1.62) compared to ibuprofen, and to oliguria as compared to ibuprofen (3.92; 1.69, 9.82) or acetaminophen (10.8; 1.86, 93.1). In conclusion, active pharmacological treatment, with indomethacin, ibuprofen, or acetaminophen, is inversely associated with failure to close the PDA compared to non-treatment. Ibuprofen should be preferred to indomethacin to avoid occurrence of IVH or oliguria, acetaminophen should be preferred to indomethacin to avoid oliguria.


Assuntos
Permeabilidade do Canal Arterial/tratamento farmacológico , Preparações Farmacêuticas/administração & dosagem , Teorema de Bayes , Ensaios Clínicos como Assunto , Humanos , Metanálise em Rede , Estudos Observacionais como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto
17.
Eur Heart J ; 39(6): 464-473, 2018 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-29281086

RESUMO

Aims: Current atrial fibrillation (AF) guidelines discourage antiplatelet (AP) monotherapy as alternative to anticoagulants (ACs). Why AP only is still used is largely unknown. Methods and results: Factors associated with AP monotherapy prescription were analysed in GARFIELD-AF, a registry of patients with newly diagnosed (≤6 weeks) AF and ≥1 investigator-determined stroke risk factor. We analysed 51 270 patients from 35 countries enrolled into five sequential cohorts between 2010 and 2016. Overall, 20.7% of patients received AP monotherapy, 52.1% AC monotherapy, and 14.1% AP + AC. Most AP monotherapy (82.5%) and AC monotherapy (86.8%) patients were CHA2DS2-VASc ≥2. Compared with patients on AC monotherapy, AP monotherapy patients were frequently Chinese (vs. Caucasian, odds ratio 2.73) and more likely to have persistent AF (1.32), history of coronary artery disease (2.41) or other vascular disease (1.67), bleeding (2.11), or dementia (1.81). The odds for AP monotherapy increased with 5 years of age increments for patients ≥75 years (1.24) but decreased with age increments for patients 55-75 years (0.86). Antiplatelet monotherapy patients were less likely to have paroxysmal (0.67) or permanent AF (0.57), history of embolism (0.56), or alcohol use (0.90). With each cohort, AP monotherapy declined (P<0.0001), especially non-indicated use. AP + AC and no antithrombotic therapy were unchanged. However, even in 2015 and 2016, about 50% of AP-treated patients had no indication except AF (71% were CHA2DS2-VASc ≥2). Conclusion: Prescribing AP monotherapy in newly diagnosed AF has declined, but even nowadays a substantial proportion of AP-treated patients with AF have no indication for AP. Clinical Trial Registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial , Inibidores da Agregação Plaquetária/uso terapêutico , Idoso , Fibrilação Atrial/tratamento farmacológico , Fibrilação Atrial/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
18.
Monaldi Arch Chest Dis ; 89(2)2019 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-31107039

RESUMO

The present study aims at evaluating the achievement of blood pressure, lipid and blood glucose targets, healthy lifestyle changes and appropriate drug prescription/adherence in patients attending secondary prevention/CR ambulatory visit after index cardiovascular event in a time period ranging 1 to 5 year. At ambulatory visit, a predetermined set of data collection was used, including demographic data, cardiovascular risk factors and lifestyle habits, type and time of index event, current symptoms, physical sign, biochemistry and current medical treatment (including type and dosage). Cardiovascular risk profile (smoking habits, physical activity and body weight), secondary prevention goals (LDL-cholesterol, blood pressure, resting heart rate, glycated haemoglobin level) and the use of recommended drugs were also evaluated and categorized. Study population consisted of 800 patients [644 men (84.5%), aged 69±10.9 years)]. Cardiovascular index events were coronary artery bypass graft (CABG) (20%) ST segment elevation myocardial infarction (STEMI) (28%), non-ST segment elevation myocardial infarction (NSTEMI) (21%) and stable angina (13%) by unstable angina (13%) and stroke (5%). About 30% of patients was symptomatic (angina or dyspnoea) at the time of ambulatory visit. Major comorbidities were hypertension (73%), dyslipidaemia (64%) and diabetes (40%). More than 80% of patients achieved target levels for blood pressure. Patients that have participated to cardiac rehabilitation programmes after cardiovascular index event showed best achievement in blood pressure target (83.8% vs 76.8%, p=0.02). LDL-cholesterol target (<70 mg/dl) was achieved in about 2/3 of patients; HbA1c target (<7%) was achieved in 56.4% of diabetic population. About 75% of study cohort was treated with RAAS inhibitors, 85% with beta-blockers, 92% with statins and 87% with acetylsalicylic acid. All drugs were increasingly adopted from index event. Implementing secondary prevention guidelines into the 'real world' clinical practice in "late" interval from 1 to 5 years after a cardiovascular event improved risk factors control and appropriate drug prescription. Whether these improvements translated into prognostic advantages remains to be elucidated.


Assuntos
Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Cooperação do Paciente , Prevenção Secundária , Idoso , Idoso de 80 Anos ou mais , Anti-Hipertensivos/uso terapêutico , Aspirina/uso terapêutico , Pressão Sanguínea , Doenças Cardiovasculares/cirurgia , LDL-Colesterol/sangue , Comorbidade , Diabetes Mellitus/sangue , Diabetes Mellitus/epidemiologia , Aconselhamento Diretivo , Dislipidemias/sangue , Dislipidemias/tratamento farmacológico , Dislipidemias/epidemiologia , Exercício Físico , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Hipertensão/fisiopatologia , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/uso terapêutico , Fatores de Risco , Fumar/epidemiologia
19.
Medicina (Kaunas) ; 55(8)2019 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-31370289

RESUMO

The availability of miniaturized ultrasound machines has changed our approach to many cardiovascular diseases. Handheld ultrasound imaging can be performed at the bedside, it is easy to use, and the information provided, although limited, is of unquestionable importance for a quick diagnosis that leads to early treatment. They have unique characteristics: Low cost, wide availability, safety, accuracy, and can be used in different clinical scenarios and by operators with different backgrounds. Image acquisition and interpretation is rapid and provides, in each situation, useful information for diagnosis, prognosis, and clinical and therapeutic management. This review focuses on the use of handheld ultrasound devices, describes differences with other equipment, their limitations, and the numerous advantages derived from their use.


Assuntos
Ecocardiografia/normas , Ultrassonografia/normas , Doenças Cardiovasculares/diagnóstico , Ecocardiografia/métodos , Ecocardiografia/estatística & dados numéricos , Humanos , Prognóstico , Ultrassonografia/métodos , Ultrassonografia/estatística & dados numéricos
20.
Medicina (Kaunas) ; 55(7)2019 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-31324041

RESUMO

Background and objectives: Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide. Among extra-pulmonary manifestations of COPD, atrial fibrillation (AF) is commonly observed in clinical practice. The coexistence of COPD and AF significantly affects the risk of cardiovascular morbidity and mortality. Nonetheless, the mechanisms explaining the increased risk of vascular events and death associated to the presence of COPD in AF are complex and not completely understood. We analyzed data from an Italian network database to identify markers and mediators of increased vascular risk among subjects with AF and COPD. Materials and Methods: Cross-sectional analysis of the Umbria Atrial Fibrillation (Umbria-FA) Registry, a multicenter, observational, prospective on-going registry of patients with non-valvular AF. Of the 2205 patients actually recruited, 2159 had complete clinical data and were included in the analysis. Results: the proportion of patients with COPD was 15.6%. COPD patients had a larger proportion of permanent AF when compared to the control group (49.1% vs. 34.6%, p < 0.0001) and were more likely to be obese and current smokers. Other cardiovascular risk factors including chronic kidney disease (CKD), peripheral artery disease and subclinical atherosclerosis were more prevalent in COPD patients (all p < 0.0001). COPD was also significantly associated with higher prevalence of previous vascular events and a history of anemia (all p < 0.0001). The thromboembolic and bleeding risk, as reflected by the CHA2DS2VASc and HAS-BLED scores, were higher in patients with COPD. Patients with COPD were also more likely to have left ventricular (LV) hypertrophy at standard ECG than individuals forming the cohort without COPD (p = 0.018). Conclusions: AF patients with COPD have a higher risk of vascular complications than AF patients without this lung disease. Our analysis identified markers and mediators of increased risk that can be easily measured in clinical practice, including LV hypertrophy, CKD, anemia, and atherosclerosis of large arteries.


Assuntos
Fibrilação Atrial/complicações , Doença Pulmonar Obstrutiva Crônica/complicações , Idoso , Fibrilação Atrial/epidemiologia , Estudos Transversais , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Sistema de Registros/estatística & dados numéricos , Fatores de Risco
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