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1.
Ital J Pediatr ; 50(1): 75, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38637874

RESUMO

BACKGROUND: Pediatric obesity is a global emerging burden for society; among its health-related consequences there are hypertension (HTN) and left ventricular hypertrophy (LVH). Several anthropometric indices have been investigated for the early identification of cardiovascular risk in children. The aim of the present study was to assess whether tri-ponderal mass index (TMI) was associated with LVH in a cohort of Caucasian children and adolescents with obesity. METHODS: In this observational study, 63 children and adolescents with obesity aged 7-to-16 years were enrolled. During outpatient visits, adiposity, and cardio-metabolic indices (BMI z-score, WHR, TMI, ABSI) were collected. All subjects underwent a 24-hour ambulatory blood pressure monitoring (ABPM) and transthoracic echocardiography. RESULTS: Children and adolescents with obesity with LVH had significantly higher BMI z-score (p = 0.009), WHR (p = 0.006) and TMI (p = 0.026) compared to children without LVH. WC and WHR were the only indices significantly associated with left ventricular mass index (LVMI). CONCLUSION: Left ventricular remodeling is associated with the cardio-metabolic risk markers WC and WHR, but not with the adiposity index TMI among children with obesity.


Assuntos
Hipertensão , Obesidade Pediátrica , Criança , Adolescente , Humanos , Obesidade Pediátrica/complicações , Obesidade Pediátrica/epidemiologia , Índice de Massa Corporal , Hipertrofia Ventricular Esquerda/etiologia , Hipertrofia Ventricular Esquerda/complicações , Monitorização Ambulatorial da Pressão Arterial , Hipertensão/epidemiologia
2.
G Ital Cardiol (Rome) ; 25(5): 309-317, 2024 May.
Artigo em Italiano | MEDLINE | ID: mdl-38639121

RESUMO

Ischemia with non-obstructive coronary arteries (INOCA) is defined by the coexistence of anginal symptoms and demonstrable ischemia, with no evidence of obstructive coronary arteries. The underlying mechanism of INOCA is coronary microvascular dysfunction with or without associated vasospasm. INOCA patients have recurrent symptoms, functional limitations, repeated access to the emergency department, impaired quality of life and a higher incidence of cardiovascular events than the general population. Although well described in chronic coronary syndrome guidelines, INOCA remains underdiagnosed in clinical practice because of insufficient awareness, lack of accurate diagnostic tools, and poorly standardized and consistent definitions to diagnose, both invasively and non-invasively, coronary microvascular dysfunction.To disseminate current scientific evidence on INOCA as a distinct clinical entity, during 2022 we conducted at 30 cardiology units all over the country a clinical practice improvement initiative, with the aim of developing uniform and shared management pathways for INOCA patients across different operational settings. The present document highlights the outcomes of this multidisciplinary initiative.


Assuntos
Doença da Artéria Coronariana , Isquemia Miocárdica , Humanos , Vasos Coronários , Qualidade de Vida , Isquemia , Isquemia Miocárdica/terapia , Coração
4.
Circ Cardiovasc Imaging ; 17(3): e016115, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38502734

RESUMO

BACKGROUND: Multimodality imaging is currently suggested for the noninvasive diagnosis of cardiac masses. The identification of cardiac masses' malignant nature is essential to guide proper treatment. We aimed to develop a cardiac magnetic resonance (CMR)-derived model including mass localization, morphology, and tissue characterization to predict malignancy (with histology as gold standard), to compare its accuracy versus the diagnostic echocardiographic mass score, and to evaluate its prognostic ability. METHODS: Observational cohort study of 167 consecutive patients undergoing comprehensive echocardiogram and CMR within 1-month time interval for suspected cardiac mass. A definitive diagnosis was achieved by histological examination or, in the case of cardiac thrombi, by histology or radiological resolution after adequate anticoagulation treatment. Logistic regression was performed to assess CMR-derived independent predictors of malignancy, which were included in a predictive model to derive the CMR mass score. Kaplan-Meier curves and Cox regression were used to investigate the prognostic ability of predictors. RESULTS: In CMR, mass morphological features (non-left localization, sessile, polylobate, inhomogeneity, infiltration, and pericardial effusion) and mass tissue characterization features (first-pass perfusion and heterogeneity enhancement) were independent predictors of malignancy. The CMR mass score (range, 0-8 and cutoff, ≥5), including sessile appearance, polylobate shape, infiltration, pericardial effusion, first-pass contrast perfusion, and heterogeneity enhancement, showed excellent accuracy in predicting malignancy (areas under the curve, 0.976 [95% CI, 0.96-0.99]), significantly higher than diagnostic echocardiographic mass score (areas under the curve, 0.932; P=0.040). The agreement between the diagnostic echocardiographic mass and CMR mass scores was good (κ=0.66). A CMR mass score of ≥5 predicted a higher risk of all-cause death (P<0.001; hazard ratio, 5.70) at follow-up. CONCLUSIONS: A CMR-derived model, including mass morphology and tissue characterization, showed excellent accuracy, superior to echocardiography, in predicting cardiac masses malignancy, with prognostic implications.


Assuntos
Neoplasias Cardíacas , Derrame Pericárdico , Humanos , Imagem Cinética por Ressonância Magnética/métodos , Valor Preditivo dos Testes , Neoplasias Cardíacas/diagnóstico , Prognóstico , Espectroscopia de Ressonância Magnética
5.
Artigo em Inglês | MEDLINE | ID: mdl-38551602

RESUMO

BACKGROUND: Arterial stiffness, particularly aortic stiffness (AoS), is associated with an increased risk of cardiovascular disease. Endovascular repair for abdominal (EVAR) and thoracic (TEVAR) aortic disease may increase AoS. This study protocol aims to assess changes in AoS before and after interventions for aortic disease. METHODS: Patients scheduled for EVAR or TEVAR during a three-year period will be enrolled. An indirect AoS indicator, carotid-to-femoral pulse wave velocity (cf-PWV) will be measured non-invasively using applanation tonometry and reported with others perioperative data before and after the endovascular treatment. Moreover, cardiological data will be collected through echocardiography. RESULTS: Fifty EVAR and 50 TEVAR will be enrolled. We will primarily analyze changes in cf-PWV. To ensure the reliability of our findings, we will also include supplementary data such as clinical information, morphological data, and functional echocardiographic data. CONCLUSIONS: By examining AoS modifications before and after endovascular aortic repair, this study aims to enhance our understanding of how arterial stiffness changes following endoprosthesis deployment. The findings from the applied protocol are expected to be informative for innovative graft designs with minimized mechanical mismatch with the aortic wall and with improved vascular hemodynamic, aligning with the current trend in improving patient outcomes. Moreover, understanding these modifications is important for predicting and improving long-term cardiovascular outcomes in patients undergoing such interventions.

6.
iScience ; 27(4): 109359, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38510143

RESUMO

Epicardial adipose tissue (EAT) is a fat depot located between the myocardium and the visceral layer of the epicardium, which, owing to its location, can influence surrounding tissues and can act as a local transducer of systemic inflammation. The mechanisms upon which such influence depends on are however unclear. Given the role EAT undoubtedly has in the scheme of cardiovascular diseases (CVDs), understanding the impact of its cellular components is of upmost importance. Extracellular vesicles (EVs) constitute promising candidates to fill the gap in the knowledge concerning the unexplored mechanisms through which EAT promotes onset and progression of CVDs. Owing to their ability of transporting active biomolecules, EAT-derived EVs have been reported to be actively involved in the pathogenesis of ischemia/reperfusion injury, coronary atherosclerosis, heart failure, and atrial fibrillation. Exploring the precise functions EVs exert in this context may aid in connecting the dots between EAT and CVDs.

7.
Cardiovasc Res ; 120(4): 333-344, 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38373008

RESUMO

Chronic low-degree inflammation is a hallmark of atherosclerotic cardiovascular (CV) disease. To assess the effect of lipid-lowering therapies on C-reactive protein (CRP), a biomarker of inflammation, we conducted a meta-analysis according to the PRISMA guidelines. Databases were searched from inception to July 2023. Inclusion criteria were: (i) randomized controlled trials (RCTs) in human, Phase II, III, or IV; (ii) English language; (iii) comparing the effect of lipid-lowering drugs vs. placebo; (iv) reporting the effects on CRP levels; (v) with intervention duration of more than 3 weeks; (vi) and sample size (for both intervention and control group) over than 100 subjects. The between-group (treatment-placebo) CRP absolute mean differences and 95% confidence intervals were calculated for each drug class separately. A total of 171 668 subjects from 53 RCTs were included. CRP levels (mg/L) were significantly decreased by statins [-0.65 (-0.87 to -0.43), bempedoic acid; -0.43 (-0.67 to -0.20), ezetimibe; -0.28 (-0.48 to -0.08)], and omega-3 fatty acids [omega3FAs, -0.27 (-0.52 to -0.01)]. CRP was reduced by -0.40 (-1.17 to 0.38) with fibrates, although not statistically significant. A slight increase of CRP concentration was observed for proprotein convertase subtilisin/kexin type 9 inhibitors [0.11 (0.07-0.14)] and cholesteryl-ester transfer protein inhibitors [0.10 (0.00-0.21)], the latter being not statistically significant. Meta-regression analysis did not show a significant correlation between changes in CRP and LDL cholesterol (LDL-C) or triglycerides. Statins, bempedoic acid, ezetimibe, and omega3FAs significantly reduce serum CRP concentration, independently of LDL-C reductions. The impact of this anti-inflammatory effect in terms of CV prevention needs further investigation.


Assuntos
Anticolesterolemiantes , Aterosclerose , Doenças Cardiovasculares , Ácidos Dicarboxílicos , Ácidos Graxos , Inibidores de Hidroximetilglutaril-CoA Redutases , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Anticolesterolemiantes/uso terapêutico , LDL-Colesterol , Proteína C-Reativa , Doenças Cardiovasculares/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como Assunto , Ezetimiba/efeitos adversos , Aterosclerose/tratamento farmacológico , Inflamação/tratamento farmacológico
10.
Echocardiography ; 41(1): e15753, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38284665

RESUMO

Speckle tracking echocardiography (STE) is a reliable imaging technique of recognized clinical value in several settings. This method uses the motion of ultrasound backscatter speckles within echocardiographic images to derive myocardial velocities and deformation parameters, providing crucial insights on several cardiac pathological and physiological processes. Its feasibility, reproducibility, and accuracy have been widely demonstrated, being myocardial strain of the various chambers inserted in diagnostic algorithms and guidelines for various pathologies. The most important parameters are Global longitudinal strain (GLS), Left atrium (LA) reservoir strain, and Global Work Index (GWI): based on large studies the average of the lower limit of normality are -16%, 23%, and 1442 mmHg%, respectively. For GWI, it should be pointed out that myocardial work relies primarily on non-invasive measurements of blood pressure and segmental strain, both of which exhibit high variability, and thus, this variability constitutes a significant limitation of this parameter. In this review, we describe the principal aspects of the theory behind the use of myocardial strain, from cardiac mechanics to image acquisition techniques, outlining its limitation, and its principal clinical applications: in particular, GLS have a role in determine subclinical myocardial dysfunction (in cardiomyopathies, cardiotoxicity, target organ damage in ambulatory patients with arterial hypertension) and LA strain in determine the risk of AF, specifically in ambulatory patients with arterial hypertension.


Assuntos
Cardiomiopatias , Hipertensão , Disfunção Ventricular Esquerda , Humanos , Ventrículos do Coração/diagnóstico por imagem , Reprodutibilidade dos Testes , Ecocardiografia/métodos , Física , Função Ventricular Esquerda/fisiologia , Disfunção Ventricular Esquerda/diagnóstico por imagem
11.
Am J Hypertens ; 37(1): 53-59, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37195645

RESUMO

BACKGROUND: Emerging evidence suggests that a hypertensive response to exercise (HRE) during dynamic or isometric stress tests assessing cardiac function is predictive of hypertension and cardiovascular events such coronary artery disease, heart failure and stroke. Whether HRE represents a marker of masked hypertension (MH) in individuals with no prior history of hypertension is still unclear. This is also the case for the association between MH and hypertension-mediated organ damage (HMOD) in the HRE setting. METHODS: We addressed this issue through a review and a meta-analysis of studies providing data on this topic in normotensive individuals undergone both to dynamic or static exercise and to 24-h blood pressure monitoring (ABPM). A systematic search was performed using Pub-Med, OVID, EMBASE and Cochrane library databases from inception up to February 28th 2023. RESULTS: Six studies including a total of 1,155 untreated clinically normotensive individuals were considered for the review. Data provided by the selected studies can be summarized as follows: (i) HRE is a BP phenotype linked to a high prevalence of MH (27.3% in the pooled population); (ii) MH is, in turn, associated with a greater, consistent likelihood of echocardiographic left ventricular hypertrophy (OR: 4.93, CI: 2.16-12.2, P < 0.0001) and vascular organ damage, as assessed by pulse wave velocity, (SMD: 0.34 ±â€…0.11, CI: 0.12-0.56, P = 0002). CONCLUSIONS: On the basis of this, albeit limited, evidence, the diagnostic work-up in individuals with HRE should primarily be addressed to look for MH as well as for markers of HMOD, a highly prevalent alteration in MH.


Assuntos
Hipertensão , Hipertensão Mascarada , Humanos , Hipertensão Mascarada/diagnóstico , Hipertensão Mascarada/epidemiologia , Análise de Onda de Pulso , Hipertensão/diagnóstico , Hipertensão/epidemiologia , Hipertensão/complicações , Pressão Sanguínea/fisiologia , Ecocardiografia , Monitorização Ambulatorial da Pressão Arterial
12.
JACC Cardiovasc Imaging ; 17(2): 149-161, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37480903

RESUMO

BACKGROUND: Cardiac magnetic resonance (CMR) plays a pivotal diagnostic role in myocardial infarction with nonobstructive coronary arteries (MINOCA). To date, a prognostic stratification of these patients is still lacking. OBJECTIVES: This study aims to assess the prognostic role of CMR in MINOCA. METHODS: The authors assessed 437 MINOCA from January 2017 to October 2021. They excluded acute myocarditis, takotsubo syndromes, cardiomyopathies, and other nonischemic etiologies. Patients were classified into 3 subgroups according to the CMR phenotype: 1) presence of late gadolinium enhancement (LGE) and abnormal mapping (M) values (LGE+/M+); 2) regional ischemic injury with abnormal mapping and no LGE (LGE-/M+); and 3) nonpathological CMRs (LGE-/M-). The primary outcome was the presence of major adverse cardiovascular events (MACE). The mean follow-up was 33.7 ± 12.0 months and CMR was performed on average at 4.8 ± 1.5 days from the acute presentation. RESULTS: The final cohort included 198 MINOCA; 116 (58.6%) comprised the LGE+/M+ group. During follow-up, MACE occurred significantly more frequently in MINOCA LGE+/M+ than in the LGE+/M- and normal-CMR (LGE-/M-) subgroups (20.7% vs 6.7% and 2.7%; P = 0.006). The extension of myocardial damage at CMR was significantly greater in patients who developed MACE. In multivariable Cox regression, %LGE was an independent predictor of MACE (HR: 1.123 [95% CI: 1.064-1.185]; P < 0.001) together with T2 mapping values (HR: 1.190 [95% CI: 1.145-1.237]; P = 0.001). CONCLUSIONS: In MINOCA with early CMR execution, the %LGE and abnormal T2 mapping values were identified as independent predictors of adverse cardiac events at ∼3.0 years of follow-up. These parameters can be considered as high-risk markers in MINOCA.


Assuntos
MINOCA , Infarto do Miocárdio , Humanos , Prognóstico , Meios de Contraste , Imagem Cinética por Ressonância Magnética , Valor Preditivo dos Testes , Gadolínio , Infarto do Miocárdio/etiologia , Espectroscopia de Ressonância Magnética/efeitos adversos
13.
Am J Hypertens ; 37(3): 155-162, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38112655

RESUMO

The cardiovascular risk associated with left ventricular hypertrophy (LVH) in the community and, particularly, in the hypertensive fraction of the general population, represents the rationale for its timely and accurate identification in order to implement adequate preventive strategies. Although electrocardiography (ECG) is the first-line and most economical method of diagnosing LVH its accuracy is largely suboptimal. Over the last 70 years, dozens of different ECG criteria, mostly based on measurements of QRS voltages, have been proposed. In this long journey, a few years ago Peguero et al. developed a novel ECG voltage criterion, currently recognized as Peguero-Lo Presti (PLP) suggesting that it has greater sensitivity than traditional ECG-LVH criteria. Considering that in the last 5 years numerous studies have investigated the diagnostic value of this new index, this review aimed to summarize the data published so far on this topic focusing both on the accuracy in identifying the presence of LVH compared with imaging techniques such as echocardiography (ECHO) and magnetic resonance imaging (MRI) and the value in predicting hard outcomes. The evidence in favor of the greater diagnostic accuracy of the PLP criterion in detecting LVH, phenotyped by ECHO or MRI, and in the stratification of hard outcomes compared with traditional ECG criteria does not appear to be sufficiently proven. Given that the diagnosis of LVH by all ECG criteria (including the PLP) exclusively based on the QRS amplitude is largely imprecise, the development of new multiparametric ECG criteria based on artificial intelligence could represent a real improvement in the diagnostic capacity of the ECG.


Assuntos
Hipertensão , Hipertrofia Ventricular Esquerda , Humanos , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/patologia , Inteligência Artificial , Eletrocardiografia/métodos , Hipertensão/complicações , Hipertensão/diagnóstico , Imageamento por Ressonância Magnética
14.
J Hypertens ; 42(1): 109-117, 2024 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-37706504

RESUMO

AIM: Gender-based evidence on the association between serum uric acid (SUA) and left ventricular hypertrophy (LVH), as assessed by echocardiography, is still based on single studies. Thus, we performed a systematic meta-analysis of echocardiographic studies in order to provide an updated and comprehensive information on this issue. METHODS: The PubMed, OVID-MEDLINE, and Cochrane library databases were analyzed to search English-language articles published from the inception up to March 31, 2023. Studies were identified by using MeSH terms and crossing the following search items: 'uric acid', 'hyperuricemia', 'left ventricular mass', 'left ventricular hypertrophy', 'echocardiography', 'female', 'male'. RESULTS: Six studies including 2791 normotensive and hypertensive individuals were considered for the analysis. In women, increasing values of SUA were associated with progressively higher values of age, body mass index (BMI) and systolic blood pressure (SBP). This was not the case for men. In women, the meta-analysis comparing LV mass index (LVMI) in low versus high SUA group showed a greater pooled LVMI in the high SUA group [standard means difference (SMD): 0.81 ±â€Š0. 24, confidence interval (CI) 0.34-1.27, P  < 0.0001]. On the contrary, in men no statistical difference was found between the low group and high SUA group (SMD: 0.27 ±â€Š0.27, CI: -0.27/0.81, P  = 0.32). CONCLUSIONS: Our meta-analysis suggests that hyperuricemia portends the likely presence of increased LVMI in women but not in men. However, as hyperuricemia in the female pooled population, different from men, was associated with older age, higher BMI and SBP, the present findings do not support an independent role of the SUA in LV remodelling process in women.


Assuntos
Hipertensão , Hiperuricemia , Masculino , Humanos , Feminino , Hipertrofia Ventricular Esquerda/epidemiologia , Ácido Úrico , Hiperuricemia/complicações , Hiperuricemia/diagnóstico por imagem , Hipertensão/diagnóstico por imagem , Ecocardiografia
15.
Int J Cardiol ; 397: 131659, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38101704

RESUMO

BACKGROUND: In patients with acute coronary syndromes (ACS), current guidelines recommend a low-density lipoprotein cholesterol (LDL-C) level < 1.4 mmol/L (<55 mg/dL). METHODS: The JET-LDL is a multicenter, observational, prospective registry created to investigate levels of LDL-C in consecutive patients with ACS undergoing PCI at 35 Italian hospitals, and to report their lipid lowering therapies (LLT). Follow-up was planned at 1 and 3 months. LDL-C reduction >50% from baseline or level < 55 mg/dL at 1-month was the primary endpoint. RESULTS: A total of 1095 patients were included: median age was 67 (58-75); 33.7% were already on LLT. Baseline LDL-C levels was 105 (76.5-137) mg/dL. At hospital discharge all patients were on LLT: 98.1% received statins (as mono or combination therapy), ezetimibe and PCSK9i were used in 60.1% and 8.5% of cases, respectively. Primary endpoint was achieved in 62% (95% CI 58-65) of cases. At 1-month LDL-C levels dropped to 53 (38-70) mg/dL (p < 0.001 vs baseline) and it was <55 mg/dL in 53% (95% CI 49-57) of patients; however, PCSK9i were added to 7 further cases. At 3-months 58% (95% CI 55-62) of patients achieved the target level, but PCSK9i was added to only 11 new patients. CONCLUSIONS: In this real-world registry of ACS patients undergoing PCI, recommend LDL-C levels were obtained in 62% of patients, but PCSK9i prescription was limited to 10% of cases. As LLT pattern appeared mainly improved at hospital discharge, an early and strong treatment should be considered.


Assuntos
Síndrome Coronariana Aguda , Anticolesterolemiantes , Inibidores de Hidroximetilglutaril-CoA Redutases , Intervenção Coronária Percutânea , Idoso , Humanos , Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/tratamento farmacológico , Síndrome Coronariana Aguda/cirurgia , Anticolesterolemiantes/uso terapêutico , LDL-Colesterol , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Sistema de Registros , Resultado do Tratamento , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Estudos Observacionais como Assunto
16.
Front Cardiovasc Med ; 10: 1289384, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38075951

RESUMO

Background: Oxidative stress induced by the excessive production of reactive oxygen species is one of the primary mechanisms implicated in anthracycline (ANT)-induced cardiotoxicity. There is a strong clinical need for a molecule capable of effectively preventing and reducing the oxidative damage caused by ANT. In vitro and in vivo studies conducted in mice have shown that melatonin stimulates the expression of antioxidative agents and reduces lipid peroxidation induced by ANT. Methods: We investigated this issue through a meta-analysis of murine model studies. The outcome of the meta-analysis was to compare oxidative damage, estimated by products of lipid peroxidation (MDA = Malondialdehyde) and markers of oxidative stress (SOD = Superoxide Dismutase, GSH = Glutathione), along with a marker of cardiac damage (CK-MB = creatine kinase-myocardial band), assessed by measurements in heart and/or blood samples in mice undergoing ANT chemotherapy and assuming melatonin vs. controls. The PubMed, OVID-MEDLINE and Cochrane library databases were analysed to search English-language review papers published from the inception up to August 1st, 2023. Studies were identified by using Me-SH terms and crossing the following terms: "melatonin", "oxidative stress", "lipid peroxidation", "anthracycline", "cardiotoxicity". Results: The metanalysis included 153 mice administered melatonin before, during or immediately after ANT and 153 controls from 13 studies. Compared with controls, the levels of all oxidative stress markers were significantly better in the pooled melatonin group, with standardized mean differences (SMD) for MDA, GSH and SOD being -8.03 ± 1.2 (CI: -10.43/-5.64, p < 0.001), 7.95 ± 1.8 (CI: 4.41/11.5, p < 0.001) and 3.94 ± 1.6 (CI: 0.77/7.12, p = 0.015) respectively. Similarly, compared with controls, CK-MB levels reflecting myocardial damage were significantly lower in the pooled melatonin group, with an SMD of -4.90 ± 0.5 (CI: -5.82/-3.98, p < 0.001). Conclusion: Melatonin mitigates the oxidative damage induced by ANT in mouse model. High-quality human clinical studies are needed to further evaluate the use of melatonin as a preventative/treatment strategy for ANT-induced cardiotoxicity.

17.
J Clin Med ; 12(22)2023 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-38002693

RESUMO

BACKGROUND AND AIM: Nitric oxide inhibits platelet aggregation by increasing the second messenger cyclic guanosine-3',5'-monophosphate (cGMP) through the activation of soluble guanylyl cyclase in target cells. Within this context, the oxidative stress associated with the aldosterone excess impairs the nitric oxide availability. Thus, the aim of the present study was to assess the impact of chronic aldosterone excess on the platelet nitric oxide/cGMP pathway in humans. METHODS: The levels of cGMP were evaluated in platelets of male patients, 12 with primary aldosteronism (PA) and 32 with uncomplicated essential hypertension (EH), matched for age and blood pressure (BP) values. RESULTS: PA and EH patients were 52.8 ± 3 years old and 51.6 ± 1.6 years old, respectively. Systolic and diastolic BP were 158 ± 5.0 mmHg and 105.9 ± 2.3 mmHg in PA and did not differ compared to EH patients (156.6 ± 2.4 mmHg and 104.7 ± 1.2 mmHg). Mean aldosterone levels were significantly higher in PA (25.5 ± 8.8 ng/dL) compared toEH (8.11 ± 0.73 ng/dL), whereas potassium was significantly lower in PA (3.52 ± 0.18 mEq/L) compared to EH (4.08 ± 0.04 mEq/L). Aldosterone and potassium were inversely related (r = -0.49, p = 0.0006) in the whole study population (n = 44). Platelet cGMP was significantly lower in PA (5.1 ± 0.36 pM/109 cells) than in EH (7.1 ± 0.53 pM/109 cells), and in the entire study cohort, it was directly related to plasma potassium (r = 0.43, p = 0.0321). CONCLUSIONS: These results show an impairment of nitric oxide/cGMP signaling in platelets of PA patients. This effect is likely related to the potassium-depleting effect of chronic aldosterone excess. Future studies are needed to understand whether the platelet nitric oxide/cGMP system is involved in the atherothrombotic events in these patients.

18.
J Clin Med ; 12(19)2023 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-37834875

RESUMO

Epidemiologic, genetic, and clinical intervention studies have indisputably shown that low-density lipoprotein cholesterol (LDL-C) is causal in the development of atherosclerotic cardiovascular disease (ASCVD). However, LDL-C variability could be related to increased ASCVD risk in patients already treated with statins. The aim of the present retrospective real-life study was to assess the prognostic impact of LDL-C variability on all-cause mortality and cardiovascular hospitalizations in patients with stable cardiovascular artery disease. A total of 3398 patients were enrolled and followed up for a median of 56 months. Considering LDL-C < 70 mg/dL as the therapeutical target, during follow-up, the percentage of patients who achieved this goal raised from 20.7% to 31.9%. In total, 1988 events were recorded, of which 428 were all-cause deaths and 1560 were cardiovascular hospitalizations. At the last medical examination, each increase in LDL-C levels of 20 mg/dL corresponded to a 6% raise in the risk of any event (HR 1.06; 95%CI, 1.03 to 1.09). In conclusion, our real-world study supports the hypothesis that a continuous and progressive downward trend in LDL-C levels is needed to achieve and maintain a cardiovascular benefit, at least in secondary prevention.

19.
Front Cardiovasc Med ; 10: 1250185, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37674808

RESUMO

Purpose: To describe the efficacy and safety of sodium-glucose cotransporter 2 inhibitors as a specific treatment for anthracycline-related cardiac dysfunction in a small real-world population. Methods: Seven patients with anthracycline-related cardiac dysfunction were clinically and echocardiographically evaluated before and after the introduction of sodium-glucose cotransporter 2 inhibitors. Results: After a median period of 24 weeks with uninterrupted sodium-glucose cotransporter 2 inhibitors treatment, a significant clinical improvement was observed with at least one New York Heart Association Functional Class (NHYA FC) improvement in all patients (median NYHA FC: I vs. III, p < 0.010). A noteworthy left ventricular reserve remodeling (median left ventricular end diastolic volume indexed: 53 vs. 82.5 ml/m2, p = 0.018; median left ventricular ejection fraction: 50% vs. 40%, p = 0.17) was also observed. Sodium-glucose cotransporter 2 inhibitors therapy was well tolerated by every patients; no cases of discontinuation or relevant side effects were observed. Conclusion: Sodium-glucose cotransporter 2 inhibitors induce a significant clinical improvement and left ventricular reserve remodeling in patients affected by anthracycline-related cardiac dysfunction.

20.
J Clin Med ; 12(18)2023 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-37762745

RESUMO

Aortic valve stenosis and malignancy frequently coexist and share the same risk factors as atherosclerotic disease. Data reporting the prognosis of patients with severe aortic stenosis and cancer are limited. Tailoring the correct and optimal care for cancer patients with severe aortic stenosis is complex. Cancer patients may be further disadvantaged by aortic stenosis if it interferes with their treatment by increasing the risk associated with oncologic surgery and compounding the risks associated with cardiotoxicity and heart failure (HF). Surgical valve replacement, transcatheter valve implantation, balloon valvuloplasty, and medical therapy are possible treatments for aortic valve stenosis, but when malignancy is present, the choice between these options must take into account the stage of cancer and associated treatment, expected outcome, and comorbidities. Physical examination and Doppler echocardiography are critical in the diagnosis and evaluation of aortic stenosis. The current review considers the available data on the association between aortic stenosis and cancer and the therapeutic options.

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