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1.
J Atheroscler Thromb ; 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38092392

RESUMO

AIMS: Critical limb ischemia (CLI) is an emerging public health threat and lacks a reliable score for predicting the outcomes. The Age, Body Mass Index, Chronic Kidney Disease, Diabetes, and Genotyping (ABCD-GENE) risk score helps identify patients with coronary artery disease who have cytochrome P450 2C19 (CYP2C19) polymorphism-related drug resistance and are at risk for cardiovascular adverse events. However, its application to CLI remains unknown. In this study, we aim to validate a modified ACD-GENE-CLI score to improve the prediction of major adverse limb events (MALEs) in patients with CLI receiving clopidogrel. METHODS: Patients with CLI receiving clopidogrel post-endovascular intervention were enrolled prospectively in two medical centers. Amputation and revascularization as MALEs were regarded as the outcomes. RESULTS: A total of 473 patients were recruited, with a mean follow-up duration of 25 months. Except for obesity, old age, diabetes, chronic kidney disease (CKD), and CYP2C19 polymorphisms were significantly associated with MALEs. Using bootstrap regression analysis, we established a modified risk score (ACD-GENE-CLI) that included old age (≥ 65 years), diabetes, CKD, and CYP2C19 polymorphisms. At a cutoff value of 8, the ACD-GENE-CLI score was superior to the CYP2C19 deficiency only, and the conventional ABCD-GENE score in predicting MALEs (area under the curve: 0.69 vs. 0.59 vs. 0.67, p=0.01). The diagnostic ability of the ACD-GENE-CLI score was consistent in the external validation. Also, Kaplan-Meier curves showed that in CYP2C19 deficiency, the ABCD-GENE and ACD-GENE-CLI scores could all differentiate patients with CLI who are free from MALEs. CONCLUSIONS: The modified ACD-GENE-CLI score could differentiate patients with CLI receiving clopidogrel who are at risk of MALEs. Further studies are required to generalize the utility of the score.

2.
J Am Heart Assoc ; 12(23): e031435, 2023 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-38014665

RESUMO

BACKGROUND: Pulmonary artery hypertension (PAH) is a fatal disease characterized by a complex pathogenesis. Exosomes containing microRNAs (miRs) have emerged as a novel biomarker. Transpulmonary exosomal miRs offer valuable insights into pulmonary circulation microenvironments. Hereby, we aimed to explore the potentials of transpulmonary exosomal miRs as differentiating factors between idiopathic PAH and congenital heart disease (CHD)-related PAH. METHODS AND RESULTS: During right heart catheterization, we collected exosomes at pulmonary arteries in 25 patients diagnosed with idiopathic PAH and 20 patients with CHD-related PAH. Next-generation sequencing identified several candidate exosomal miRs. Using quantitative polymerase chain reaction, we validated the expressions of these miRs and revealed significantly elevated expressions of miR-21, miR-139-5p, miR-155-5p, let-7f-5p, miR-328-3p, miR-330-3p, and miR-103a-3p in patients with CHD-related PAH, in contrast to patients with idiopathic PAH. Among these miRs, miR-21 exhibited the highest expression in patients with CHD-related PAH. These findings were further corroborated in an external cohort comprising 10 patients with idiopathic PAH and 8 patients with CHD-related PAH. Using an in vitro flow model simulating the shear stress experienced by pulmonary endothelial cells, we observed a significant upregulation of miR-21. Suppressing miR-21 rescued the shear stress-induced downregulation of the RAS/phosphatidylinositol 3-kinase/protein kinase B pathway, leading to a mitigation of apoptosis. CONCLUSIONS: Our study identified a pronounced expression of transpulmonary exosomal miR-21, particularly in patients with CHD-related PAH, through next-generation sequencing analysis. Further investigation is warranted to elucidate the regulatory mechanisms involving miR-21 in the pathophysiology of PAH.


Assuntos
Cardiopatias Congênitas , MicroRNAs , Hipertensão Arterial Pulmonar , Humanos , MicroRNAs/genética , MicroRNAs/metabolismo , Hipertensão Arterial Pulmonar/genética , Hipertensão Arterial Pulmonar/metabolismo , Células Endoteliais/metabolismo , Hipertensão Pulmonar Primária Familiar/metabolismo , Cardiopatias Congênitas/metabolismo
3.
Front Biosci (Landmark Ed) ; 28(4): 81, 2023 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-37114551

RESUMO

BACKGROUND: Angiotensin receptor neprilysin inhibitor (ARNI) and sodium-glucose cotransporter 2 inhibitor (SGLT2i) are emerging medical treatments for decompensated heart failure (HF) with reduced ejection fraction. In clinical practice, the combination of ARNI and SGLT2i cannot be administered owing to the poor hemodynamic status in patients with HF with reduced ejection fraction (HFrEF). This study aimed to compare different strategies of HF management for ARNI first or SGLT2i first in such a population. METHODS: From January 2016 to December 2021, 165 patients were diagnosed with HFrEF and New York Heart Association functional class ≥II and already received optimal medical treatment. Ninety-five patients received the ARNI-first strategy, and 70 patients received the SGLT2i-first strategy according to the physician's choice. Age, sex, hemodynamic condition, etiologies of HF, comorbidities, serum creatinine, N-terminal pro-B-type natriuretic peptide (NT-ProBNP), echocardiographic parameters, and clinical outcomes were compared between the ARNI and SGLT2i-first strategy groups. RESULTS: In the SGLT2i-first group, the median interval between the addition of the second medication was longer (ARNI-first vs. SGLT2i-first; 74 [49-100] days vs. 112 [86-138] days; p = 0.044). Improvement in left ventricular ejection fraction (LVEF), change in left atrial dimension, and change in left ventricular end-diastolic and end-systolic volume (LVESV) did not differ between the two groups. The incidence of HF hospitalization, cardiovascular mortality, and all-cause mortality did not differ between the two groups. A non-significant trend of lower NT-proBNP levels (ARNI-first vs. SGLT2i-first; 1383 [319-2507] pg/mL vs. 570 [206-1314] pg/mL; p = 0.055) and significantly higher discontinuation rate of diuretic agents (ARNI-first vs. SGLT2i- first; 6.8% vs. 17.5%; p = 0.039) were noted in the SGLT2i-first group. When early combination (≤14D) compared to late combination (>14D), better positive remodeling of LVESV presented significantly in early combination subgroups. CONCLUSIONS: In patients with symptomatic HFrEF, SGLT2i-first strategy may provide a higher possibility of discontinuing diuretic agents than the ARNI-first strategy. Changes in LV performance, progression of renal function, and clinical outcomes did not differ between the two groups. Early combination (≤14D) provided better LV remodeling.


Assuntos
Insuficiência Cardíaca , Humanos , Antagonistas de Receptores de Angiotensina/uso terapêutico , Antagonistas de Receptores de Angiotensina/farmacologia , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/uso terapêutico , Diuréticos/farmacologia , Diuréticos/uso terapêutico , Combinação de Medicamentos , Glucose/farmacologia , Insuficiência Cardíaca/diagnóstico , Neprilisina/farmacologia , Neprilisina/uso terapêutico , Sódio/farmacologia , Sódio/uso terapêutico , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Volume Sistólico , Tetrazóis/farmacologia , Tetrazóis/uso terapêutico , Resultado do Tratamento , Valsartana/farmacologia , Valsartana/uso terapêutico , Função Ventricular Esquerda
4.
Front Oncol ; 12: 952370, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36172150

RESUMO

Gonadotropin-releasing hormone (GnRH) therapy has been known to increase risks of major adverse cardiovascular and cerebrovascular events (MACCEs). Herein, we aim to estimate whether regular use of aspirin attenuates risks of MACCEs in prostate cancer patients receiving GnRHs. Using Taiwanese National Health Insurance Research Database (NHIRD), we identified 7719 patients diagnosed with prostate cancer who were either aspirin-naïve, received irregular or regular aspirin from 2008 to 2015. Through a multivariable logistic regression model, we investigated the impact of aspirin on MACCEs. Compared with nonusers and irregular users, most patients receiving regular aspirin were older and had more comorbidities. The crude incidence of one-year MACCEs was lowest in aspirin nonusers but highest in irregular users of aspirin compared with regular users of aspirin (2.65% vs. 4.41% vs. 2.85%, p=0.0099). After adjusting for age, cancer stage and comorbidities, irregular aspirin users had a higher risk of one-year MACCEs (adjusted OR: 1.33; 95% CI: 0.93-1.90, p=0.1139) than aspirin nonusers, but conversely, there was a trend of reducing the risk of MACCEs among those who received regular aspirin (adjusted OR: 0.79; 95% CI: 0.44-1.42, p=0.4256). In the subgroup analysis, there were age- and cancer stage-independent higher risks of MACCEs in patients who took aspirin irregularly compared to those in patients who did not take aspirin. The risks were attenuated in patients receiving regular aspirin. Collectively, regular use of aspirin presented a trend of reducing risks of MACCEs in prostate cancer patients receiving GnRHs. However, irregular use of aspirin diminished the benefits.

5.
Aging (Albany NY) ; 14(11): 4897-4913, 2022 06 13.
Artigo em Inglês | MEDLINE | ID: mdl-35696641

RESUMO

Aging is a major risk factor for ischemic hypoxia-related diseases, including peripheral artery diseases (PADs). Signal transducer and activator of transcription 3 (STAT3) is a critical transcription activator in angiogenesis. Nevertheless, the effect of aging on endothelial cells and their responses to hypoxia are not well studied. Using a hindlimb hypoxic/ischemic model of aged mice, we found that aged mice (80-100-week-old) expressed significantly lower levels of angiogenesis than young mice (10-week-old). In our in vitro study, aged endothelial cells (≥30 passage) showed a significant accumulation of ß-galactosidase and a high expression of aging-associated genes, including p16, p21, and hTERT compared with young cells (<10 passage). After 24 hours of hypoxia exposure, proliferation, migration and tube formation were significantly impaired in aged cells compared with young cells. Notably, STAT3 and angiogenesis-associated proteins such as PI3K/AKT were significantly downregulated in aged mouse limb tissues and aged cells. Further, using STAT3 siRNA, we found that suppressing STAT3 expression in endothelial cells impaired proliferation, migration and tube formation under hypoxia. Correspondingly, in patients with limb ischemia we also observed a higher expression of circulating STAT3, associated with a lower rate of major adverse limb events (MALEs). Collectively, STAT3 could be a biomarker reflecting the development of MALE in patients and also a regulator of age-dependent angiogenesis post limb ischemia. Additional studies are required to elucidate the clinical applications of STAT3.


Assuntos
Células Endoteliais , Fator de Transcrição STAT3 , Envelhecimento/metabolismo , Animais , Células Endoteliais/metabolismo , Humanos , Hipóxia/metabolismo , Isquemia/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Neovascularização Patológica/metabolismo , Neovascularização Fisiológica , Fosfatidilinositol 3-Quinases/metabolismo , Fator de Transcrição STAT3/metabolismo , Transdução de Sinais
6.
Front Cardiovasc Med ; 9: 826478, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35557515

RESUMO

With an increasing prevalence, peripheral arterial disease (PAD), cause by atherosclerosis is a new threat to public health beyond coronary artery disease and involves aberrant vascular endothelial cell proliferation and angiogenesis. The degree of vascular remodeling is influenced by the processes described. MicroRNA-21 (miR-21) has been found to play a critical role in cellular functions, including angiogenesis. Nevertheless, the effect of miR-21 on endothelial cells in response to hypoxia is largely unknown. Using wild-type C57BL/6J and miR-21-/- mice, we compared the capability of angiogenesis in response to hindlimb hypoxic/ischemia. In an in vitro study, we further studied whether overexpression of miR-21 mitigates hypoxia-induced apoptosis and impaired angiogenesis. Also, we prospectively collected the sera of patients with limb ischemia and followed the clinical information, including major adverse limb events (MALEs). Using laser Doppler perfusion imaging and CD31 staining, compared with miR-21-/- mice, wild-type mice expressed a significantly higher capability of angiogenesis and less apoptosis following 28 days of hindlimb hypoxic/ischemic surgery. In our in vitro study, after 24 h of hypoxia, proliferation, migration, and tube formation were significantly impaired in cells treated with the miR-21 inhibitor but rescued by the miR-21 mimic. Mechanistically, by suppressing PTEN/PI3K/AKT, miR-21 promoted angiogenesis and suppressed apoptosis in endothelial cells post hypoxia. In patients with limb ischemia, the high expression of circulating miR-21 was associated with less subsequent MALE. Collectively, miR-21 could be a biomarker associated with the endogenous ability of angiogenesis and reflect subsequent MALE in patients. Additionally, abolishing miR-21 impairs angiogenesis and promotes apoptosis post limb ischemia. Further studies are required to elucidate the clinical applications of miR-21.

7.
Arch Toxicol ; 96(7): 2021-2032, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35438302

RESUMO

Doxorubicin (Dox), an effective therapy in different types of cancer, is known to exhibit cardiotoxic effects. Despite previous studies indicating the benefits of dapagliflozin (DAPA) in patients experiencing heart failure, it remains uncertain whether DAPA exerts a protective effect on Dox-induced cardiac dysfunction. Signal transducer and activator of transcription 3 (STAT3) participates in various mechanisms of cardioprotection. Herein, we aimed to investigate the effects of DAPA on Dox-induced cardiotoxicity and the role of STAT3. Sprague-Dawley rats were pretreated with oral DAPA for 6 weeks followed by Dox for 4 weeks. Sequential echocardiography was applied to assess cardiac function. For in vitro analysis, cardiomyocytes were treated with 10 µM DAPA and subsequently exposed to 1 µM Dox. The expression of reactive oxygen species- and apoptosis-related proteins was measured. Using STAT3 siRNA, we further examined the effects of STAT3 effect on DAPA-associated protection against Dox-induced apoptosis. In rats treated with Dox, DAPA significantly reduced cardiac fibrosis and improved cardiac function and hemodynamics. Additionally, DAPA effectively inhibited Dox-induced apoptosis and reactive oxygen species (ROS) in cardiomyocytes. Mechanistically, we showed that DAPA decreased cardiac expression of Bax and cleaved caspase 3 but increased Bcl-2 expression. DAPA also significantly rescued Dox-suppressed STAT3 expression. Conversely, knocking down STAT3 in cardiomyocytes reversed the DAPA-related protective effects on Dox-induced cell apoptosis and ROS. Collectively, our findings indicate that DAPA could be useful for preventing Dox-induced cardiotoxicity by restoring STAT3.


Assuntos
Cardiotoxicidade , Fator de Transcrição STAT3 , Animais , Apoptose , Proteínas Reguladoras de Apoptose/metabolismo , Compostos Benzidrílicos , Cardiotoxicidade/metabolismo , Doxorrubicina/toxicidade , Glucosídeos , Humanos , Miócitos Cardíacos , Estresse Oxidativo , Ratos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo , Fator de Transcrição STAT3/metabolismo
8.
Front Cardiovasc Med ; 9: 794310, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35369325

RESUMO

Although androgen deprivation therapy (ADT) has been proposed to be associated with a higher risk of venous thromboembolisms (VTEs), whether gonadotropin-releasing hormones (GnRHs), such as both agonists and antagonists, are also associated with VTEs remain unclear. Using the Taiwan Cancer Registry (TCR) linked with the National Health Insurance Research Database, we identified patients diagnosed with prostate cancer from 2008 to 2015. Patients who received GnRH were 1:1 propensity score matched with non-GnRH users by age and cancer stage at diagnosis and clinical stage. Cox regression analysis was applied to estimate the incidences of VTEs with death as a competing event at the 5-year follow-up. The VTE incidence among GnRH users was 1.13% compared with 0.98% among non-users. After adjusting with potential confounding factors, the risk of VTEs showed borderline statistical significance among GnRH users and non-users. Notably, in the subgroup analysis among patients receiving GnRH therapy, those younger than 70 years old or at an earlier stage (stage I/II) were at a higher risk of VTEs. Different from previous studies, our findings highlighted critical concerns regarding the cardiac safety of GnRH therapies in prostate cancer patients at a relatively younger age or at an earlier stage.

9.
J Urol ; 207(4): 841-850, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34854752

RESUMO

PURPOSE: Androgen deprivation therapy (ADT) includes bilateral orchiectomy or long-acting gonadotropin-releasing hormone (GnRH) agonists/antagonists. It remains controversial with respect to ADT associated cardiovascular outcomes. Hereby, we compared the risk of major adverse cardiovascular and cerebrovascular events (MACCEs) in patients with prostate cancer receiving either surgical castration or GnRH therapies. MATERIALS AND METHODS: Using the Taiwan Cancer Registry and Taiwan's National Health Insurance Research Database, we identified 8,413 patients receiving GnRH therapies compared with 694 receiving surgical castration from 2008 to 2017. The median followup duration was 3 years. RESULTS: The crude incidences of 3-year mortality and MACCEs were 19.90% vs 26.51% and 8.23% vs 8.65% in patients receiving GnRH therapies or surgical castration, respectively. After adjusting for age, cancer stage and comorbidities, despite no significant differences in MACCEs between groups there was a slight increase in the incidence of acute myocardial infarction (AMI) in patients receiving surgical castration compared with those receiving GnRH therapies. The mortality adjusted hazard ratios of MACCEs and AMI among patients receiving surgical castration were 1.11- and 1.8-fold higher than those receiving GnRH therapies. Notably, in subgroup analysis regarding cancer stage, patients with cancer stage IV showed the most significantly increasing risk of AMI in those receiving surgical castration compared with GnRH therapies. CONCLUSIONS: Collectively, we indicated an increased risk of AMI in patients with prostate cancer, especially in patients receiving surgical castration rather than those receiving GnRH therapies. Our findings highlight concerns regarding the cardiac safety of surgical castration compared with GnRH therapies.


Assuntos
Antagonistas de Androgênios/efeitos adversos , Antineoplásicos Hormonais/efeitos adversos , Cardiotoxicidade/etiologia , Doenças Cardiovasculares/etiologia , Orquiectomia/efeitos adversos , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/cirurgia , Cardiotoxicidade/epidemiologia , Cardiotoxicidade/mortalidade , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/mortalidade , Humanos , Masculino , Complicações Pós-Operatórias/etiologia , Fatores de Risco , Taiwan/epidemiologia
10.
Int J Med Sci ; 18(13): 2842-2848, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34220312

RESUMO

How renal function influences post-acute myocardial infarction (AMI) cardiac remodeling and outcomes remains unclear. This study evaluated the impact of levels of renal impairment on drug therapy, echocardiographic parameters, and outcomes in patients with AMI undergoing percutaneous coronary intervention (PCI). A total of 611 patients diagnosed with AMI underwent successful PCI, and two echocardiographic examinations were performed within 1 year after AMI. Patients were categorized according to Group 1: severely impaired estimated glomerular filtration rate (eGFR)<30, Group 2: mildly impaired 30≤eGFR<60, Group 3: potentially at risk 60≤eGFR<90 and normal eGFR≥90 ml/min/1.73 m2. During the 5-year follow-up period, the primary endpoints were cardiovascular mortality and outcomes. Patients with worse renal function (eGFR<30) were older and had a higher prevalence of hypertension and diabetes, but relatively few were smokers or had hyperlipidemia. Despite more patients with lesions of the left anterior descending artery, those with worse renal function received suboptimal guideline-directed medical therapy (GDMT). Notably, patients with worse renal function presented with worse left ventricular function at baseline and subsequent follow-up. Kaplan-Meier analysis revealed increased cardiovascular death, development of heart failure, recurrent AMI and revascularization in patients with worse renal function. Notably, as focusing on patients with ST elevation MI, the similar findings were observed. In multivariable Cox regression, impaired renal function showed the most significant hazard ratio in cardiovascular death. Collectively, in AMI patients receiving PCI, outcome differences are renal function dependent. We found that patients with worse renal function received less GDMT and presented with worse cardiovascular outcomes. These patients require more attention.


Assuntos
Insuficiência Cardíaca/epidemiologia , Infarto do Miocárdio/terapia , Intervenção Coronária Percutânea , Insuficiência Renal/epidemiologia , Remodelação Ventricular/fisiologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Fármacos Cardiovasculares/uso terapêutico , Terapia Combinada/métodos , Feminino , Seguimentos , Taxa de Filtração Glomerular/fisiologia , Insuficiência Cardíaca/etiologia , Humanos , Estimativa de Kaplan-Meier , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/mortalidade , Período Pós-Operatório , Prevalência , Insuficiência Renal/complicações , Insuficiência Renal/fisiopatologia , Fatores de Risco , Resultado do Tratamento
11.
ESC Heart Fail ; 8(4): 3082-3092, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33955184

RESUMO

AIMS: The Registry to Evaluate Early and Long-Term PAH Disease Management (REVEAL) risk scores differentiate survivals in patients with pulmonary arterial hypertension (PAH). However, measurements of N-terminal pro B-type natriuretic peptide (NT-proBNP) in the peripheral blood may not adequately reflect early-stage decompensated heart failure (HF). Given that right heart catheterization (RHC) can facilitate measurements of intracardiac NT-proBNP, in this study our aim was to evaluate the predictive role of right ventricular (RV) NT-proBNP measurements in patients with PAH. METHODS AND RESULTS: We prospectively collected intracardiac blood samples for NT-proBNP measurements from patients diagnosed with World Health Organization Group I PAH during RHC. Clinical information including the aetiology of PAH (idiopathic, connective tissue disease, or congenital heart disease) and REVEAL scores were recorded. The primary endpoint was hospitalization for decompensated HF; median duration of follow-up was 28 months. Among the 62 patients evaluated, 12 reached the designated endpoint. REVEAL risk scores were higher among patients hospitalized for HF. We detected no significant differences in plasma NT-proBNP levels in peripheral circulation, in the right atrium, or in pulmonary arterial blood; however, significantly higher levels of NT-proBNP were detected in the RV in patients diagnosed with PAH. RV NT-proBNP was a sensitive predictor (cut-off value 1500 pg/mL) of subsequent hospitalization for HF. Our findings indicate that RV NT-proBNP levels add predictive value to REVEAL scores with respect to future hospitalization due to HF. CONCLUSIONS: Right ventricular NT-proBNP levels combined with REVEAL 2.0 could predict the development of subsequent HF in patients with PAH and may be a potential biomarker.


Assuntos
Insuficiência Cardíaca , Hipertensão Arterial Pulmonar , Insuficiência Cardíaca/diagnóstico , Humanos , Peptídeo Natriurético Encefálico , Fragmentos de Peptídeos
12.
J Cardiol ; 77(5): 509-516, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33234403

RESUMO

BACKGROUND: Heart failure (HF) with mid-range ejection fraction (HFmrEF) is defined as HF with a left ventricular (LV) ejection fraction (LVEF) of 41-49%. However, the change in LV function and the subsequent prognosis in these patients remain unclear. We aimed to investigate whether LV global longitudinal strain (LV GLS) could differentiate the changes in LVEF and predict the clinical outcomes in patients with HFmrEF. METHODS: According to the changes in LVEF on follow-up echocardiography, 273 outpatients with HFmrEF were divided into 3 groups: HFwEF (HF with worse EF: <40%), HFsEF (HF with similar EF: 40-49%), and HFrecEF (HF with recovered EF: >50%). Further, the LV GLS at diagnosis was evaluated. RESULTS: The average follow-up duration was 31 months. Among patients with HFmrEF, the more impaired the LV GLS at baseline, the higher probability of HFwEF development. In comparison with patients with HFwEF and HFsEF, those with HFrecEF had a lower risk of hospitalization for HF. At a cut-off value of -11%, LV GLS differentiated the subsequent risk of cardiovascular death in patients with HFmrEF. In Cox regression, patients with LV GLS >-11% had a high risk of cardiovascular death. CONCLUSION: In patients with HFmrEF, LV GLS is associated with LVEF changes and subsequent cardiovascular death. Patients with HFrecEF had a lower risk of hospitalization for HF.


Assuntos
Insuficiência Cardíaca , Função Ventricular Esquerda , Ecocardiografia , Hospitalização , Humanos , Prognóstico , Volume Sistólico
13.
Diabetes ; 70(1): 262-267, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33115828

RESUMO

Dapagliflozin (DAPA), a sodium-glucose cotransporter 2 inhibitor, is approved for treatments of patients with diabetes. The DAPA-HF (Dapagliflozin and Prevention of Adverse Outcomes in Heart Failure) trial disclosed DAPA's benefits in symptomatic heart failure, but the underlying mechanism remains largely unknown. In this longitudinal and prospective study, we investigated changes of left ventricular functions including speckle tracking in patients with diabetes who were free from symptomatic heart failure post-DAPA treatment. Using a rat model with streptozotocin-induced diabetes, we measured the effects of DAPA on myocardial function. In patients with diabetes, following 6 months of DAPA treatment, despite no significant changes in left ventricular ejection fraction, the diastolic function and longitudinal strain improved. Likewise, compared with control, the diabetic rat heart developed pronounced fibrosis and a decline in strain and overall hemodynamics, all of which were mitigated by DAPA treatment. In contrast, despite insulin exerting a glucose-lowering effect, it failed to improve myocardial function and fibrosis. In our in vitro study, under high glucose cardiomyocytes showed significant activations of apoptosis, reactive oxygen species, and endoplasmic reticulum (ER) stress-associated proteins, which were attenuated by the coincubation of DAPA. Mechanistically, DAPA suppressed ER stress, reduced myocardial fibrosis, and improved overall function. The results can lead to further improvement in management of left ventricular function in patients with diabetes.


Assuntos
Compostos Benzidrílicos/farmacologia , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Glucosídeos/farmacologia , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Função Ventricular Esquerda/efeitos dos fármacos , Idoso , Animais , Compostos Benzidrílicos/uso terapêutico , Glicemia/metabolismo , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Feminino , Glucosídeos/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/metabolismo , Ratos , Ratos Sprague-Dawley , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Volume Sistólico/efeitos dos fármacos , Resultado do Tratamento
14.
Acta Cardiol Sin ; 36(2): 105-110, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32201460

RESUMO

BACKGROUND: Avoiding unnecessary radiation exposure is the main issue during coronary angiography. Herein, we aimed to investigate whether performing coronary angioplasties with monoplane or biplane imaging most effectively reduces radiation load and shortens the procedure time. METHODS: We retrospectively enrolled 294 patients who required either coronary angiography or coronary angioplasty. They were divided into groups of only diagnostic angiography, one-, two- or three-vessel diseases. The fluoroscopy dose-area product (DAP), skin dose, fluoroscopy and procedure time were recorded. RESULTS: Among the studied patients, 148 received the procedures with monoplane imaging. Compared with the radiation exposure in the monoplane group, there were significant increases in DAP and skin dose in those who received biplane imaging independently of the number of lesions. This phenomenon was also observed in the patients receiving either diagnostic angiography only or coronary interventions. In addition, there were no significant differences in contrast volume and procedure time between the monoplane and biplane groups. Notably, the average fluoroscopy time in those who received biplane imaging was significantly longer than in those who received monoplane imaging in the one- and two-vessel groups, while there were no significant differences in the diagnostic angiography only and three-vessel diseases groups. CONCLUSIONS: Our findings indicated that using monoplane imaging resulted in lesser radiation exposure and similar procedure times in coronary diagnostic and interventional settings compared to using biplane imaging. This observation should be verified in prospective randomized studies.

15.
Medicine (Baltimore) ; 97(46): e13134, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30431581

RESUMO

Radial artery occlusion (RAO) occurs in 2% to 18% of patients after transradial access (TRA) cardiac catheterization. Using a kaolin-filled pad (QuikClot) reduces compression time during TRA and might reduce RAO. We examined the RAO risk with the kaolin-filled pad after TRA cardiac catheterization.This was a prospective cross-sectional study of 260 patients who underwent TRA cardiac catheterization in a cardiac ward of a Medical Center from 2012 to 2016. Patients were randomly assigned to 1 of 2 groups: the case group (n = 130) was postoperatively treated with a kaolin-filled pad, and the control group (n = 130) was treated with conventional hemostasis. Color duplex ultrasound was used to evaluate the 24-hour and 1-month postoperative radial artery flow velocity, diameter, patency, and RAO risk.RAO risk was not significantly different between the case and control groups after 24 hours (4.6% vs 5.4%, P = .776) or after 1 month (5.4% vs 6.1%, P = .789), regardless of whether it was a first TRA cardiac catheterization (after 24 hours [P = .153] or after 1month [P = .617], respectively) or a repeated TRA cardiac catheterization (after 24 hours [P = .754] or after 1month [P = .753], respectively).Using a kaolin-filled pad after TRA cardiac catheterization did not significantly reduce RAO risk compared with conventional hemostasis.


Assuntos
Arteriopatias Oclusivas/etiologia , Cateterismo Cardíaco/efeitos adversos , Caulim/administração & dosagem , Artéria Radial/cirurgia , Grau de Desobstrução Vascular/efeitos dos fármacos , Idoso , Antidiarreicos/administração & dosagem , Arteriopatias Oclusivas/epidemiologia , Arteriopatias Oclusivas/prevenção & controle , Cateterismo Periférico/efeitos adversos , Estudos Transversais , Feminino , Técnicas Hemostáticas , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Artéria Radial/efeitos dos fármacos , Medição de Risco/métodos , Ultrassonografia Doppler Dupla
16.
J Am Heart Assoc ; 6(5)2017 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-28468786

RESUMO

BACKGROUND: Patients with unprovoked venous thromboembolism (VTE) are at an increased risk of mortality, but whether their cardiovascular risks also increase remains to be determined. We aimed to investigate the factors associated with overall mortality and major adverse cardiovascular events in patients with unprovoked VTE. METHODS AND RESULTS: We identified 2154 patients newly diagnosed with unprovoked VTE from Taiwan's National Health Insurance Database between 2000 and 2013, excluding those with reversible etiologies, underlying cancer, or autoimmune diseases. These patients with VTE were compared with an age-, sex-, and cardiovascular risk-matched cohort of 4308 controls. The risk of mortality and major adverse cardiovascular events in patients with VTE was 2.23 (CI, 1.93-2.57; P<0.0001) and 1.86 (CI, 1.65-2.09; P<0.0001) times, respectively, higher than that of the conditions in controls. These events mostly occurred during the first year after the diagnosis of unprovoked VTE. Among patients with VTE, advanced age, male sex, and comorbid diabetes mellitus indicated a higher incidence of mortality and major adverse cardiovascular events. Conversely, comorbid hyperlipidemia attenuated these risks. CONCLUSIONS: This nation-wide cohort study revealed that patients with unprovoked VTE, particularly older males with diabetes mellitus, had an elevated risk of both mortality and cardiovascular events. Risk of mortality and major adverse cardiovascular events were highest within the first year after diagnosis and persisted during the 10 years of follow-up.


Assuntos
Tromboembolia Venosa/mortalidade , Adulto , Fatores Etários , Idoso , Comorbidade , Bases de Dados Factuais , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/mortalidade , Feminino , Humanos , Hiperlipidemias/diagnóstico , Hiperlipidemias/mortalidade , Incidência , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Fatores de Proteção , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores Sexuais , Taiwan/epidemiologia , Fatores de Tempo , Tromboembolia Venosa/diagnóstico , Adulto Jovem
17.
PLoS One ; 9(2): e88078, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24551077

RESUMO

BACKGROUND AND OBJECTIVES: To determine the incidence rates and mortality of liver abscess in ESRD patients on dialysis. DESIGN SETTING PARTICIPANTS & MEASUREMENTS: Using Taiwan's National Health Insurance Research Database, we collected data from all ESRD patients who initiated dialysis between 2000 and 2006. Patients were followed until death, end of dialysis, or December 31, 2008. Predictors of liver abscess and mortality were identified using Cox models. RESULTS: Of the 53,249 incident dialysis patients identified, 447 were diagnosed as having liver abscesses during the follow-up period (224/100,000 person-years). The cumulative incidence rate of liver abscess was 0.3%, 1.1%, and 1.5% at 1 year, 5 years, and 7 years, respectively. Elderly patients and patients on peritoneal dialysis had higher incidence rates. The baseline comorbidities of diabetes mellitus, polycystic kidney disease, malignancy, chronic liver disease, biliary tract disease, or alcoholism predicted development of liver abscess. Overall in-hospital mortality was 10.1%. CONCLUSIONS: The incidence of liver abscess is high among ESRD dialysis patients. In addition to the well known risk factors of liver abscess, two other important risk factors, peritoneal dialysis and polycystic kidney disease, were found to predict liver abscess in ESRD dialysis patients.


Assuntos
Falência Renal Crônica/complicações , Falência Renal Crônica/mortalidade , Abscesso Hepático/complicações , Abscesso Hepático/mortalidade , Diálise Renal/estatística & dados numéricos , Adolescente , Adulto , Idoso , Estudos de Coortes , Demografia , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Taxa de Sobrevida , Taiwan/epidemiologia , Adulto Jovem
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