Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
1.
Int J Med Sci ; 14(12): 1241-1250, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29104480

RESUMO

Background The correlation between severity and long-term outcomes of pediatric myocarditis have been reported, however this correlation in adults has rarely been studied. Materials and Methods This nationwide population-based cohort study used data from the National Health Insurance Research Database in Taiwan. Patients aged < 75 and > 18 years admitted to an intensive care unit due to acute myocarditis were enrolled and divided into three groups according to mechanical circulatory support (MCS) after excluding major comorbidities. All-cause mortality, cardiovascular death, and heart failure hospitalization were evaluated from January 1, 2001 to December 31, 2011. Results There were 1145 patients with acute myocarditis (mean age 40.2 years, SD: 14.8 years), of which 851 did not require MCS, 99 underwent intra-aortic balloon pump (IABP) support, and 195 extracorporeal membrane oxygenation (ECMO) support. There was no significant difference in heart failure hospitalization between the three groups after index admission. The incidence of cardiovascular death after discharge ranged from 10 % to 22%, which was highest in the ECMO group, and was also significantly different between the three groups within 3 months (p<0.001) but it disappeared after 3 months (p=0.458). The trend was also noted in incidence of all-cause mortality. Conclusions The severity of acute myocarditis did not affect long-term outcomes, however, it was associated with cardiovascular/all-cause death within 3 months after discharge.


Assuntos
Cuidados Críticos/estatística & dados numéricos , Insuficiência Cardíaca/mortalidade , Coração Auxiliar/estatística & dados numéricos , Miocardite/mortalidade , Sobreviventes/estatística & dados numéricos , Doença Aguda/mortalidade , Adulto , Idoso , Oxigenação por Membrana Extracorpórea , Feminino , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/terapia , Hospitalização/estatística & dados numéricos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Mortalidade/tendências , Miocardite/complicações , Miocardite/terapia , Estudos Retrospectivos , Índice de Gravidade de Doença , Taiwan/epidemiologia , Resultado do Tratamento , Adulto Jovem
2.
Int J Med Sci ; 14(1): 75-85, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28138312

RESUMO

Background: Previous studies reported that patients who had an acute myocardial infarction (AMI) have found that measuring B-type natriuretic peptide (BNP) during the subacute phase of left ventricular (LV) remodeling can predict the possible course of LV remodeling. This study assessed the use of serial BNP serum levels combined with early creatine kinase-MB (CK-MB) to predict the development of significant LV remodeling in AMI patients. Methods: Nighty-seven patients with new onset AMI were assessed using serial echocardiographic studies and serial measurements of BNP levels, both performed on day-2 (BNP1), day-7 (BNP2), day-90 (BNP3), and day-180 (BNP4) after admission. LV remodeling was defined as >20% increase in biplane LV end-diastolic volume on day-180 compared to baseline (day-2). Results: Patients were divided into LV remodeling [LVR(+)] and non LV remodeling [LVR(-)] groups. No first-week BNP level was found to predict remodeling. However, the two groups had significantly different day-90 BNP level (208.1 ± 263.7 pg/ml vs. 82.4 ± 153.7 pg/ml, P = 0.039) and significantly different 3-month BNP decrease ratios ( R BNP13) (14.4 ± 92.2% vs. 69.4 ± 25.9%, P < 0.001). The appropriate cut-off value for R BNP13 was 53.2% (AUC = 0.764, P < 0.001). Early peak CK-MB (cut-off 48.2 ng/ml; AUC = 0.672; P = 0.014) was another independent predictor of remodeling. Additionally, combining peak CK-MB and R BNP13 offered an excellent discrimination for half-year remodeling when assessed by ROC curve (AUC = 0.818, P < 0.001). Conclusion: R BNP13 is a significant independent predictor of 6-month LV remodeling. The early peak CK-MB additionally offered an incremental power to the predictions derived from serial BNP examinations.


Assuntos
Creatina Quinase Forma MB/sangue , Infarto do Miocárdio/fisiopatologia , Peptídeo Natriurético Encefálico/sangue , Remodelação Ventricular/fisiologia , Idoso , Biomarcadores/sangue , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/sangue
3.
Int Heart J ; 56(3): 335-40, 2015 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-25912900

RESUMO

There are many published articles on the effects of the antithrombolytic function of platelet glycoprotein IIb/IIIa inhibitors (GP IIb/IIIa inhibitors) in myocardial infarction. However, few studies have explored the effects and optimal concentration of tirofibans in diminishing the extent of myocardial reperfusion injury (RI).Rats received 120 minutes of coronary ligation and 180 minutes of reperfusion. The rats were then divided into 7 groups based on the concentration of tirofiban administered intravenously 30 minutes prior to coronary reperfusion to the end of reperfusion. The ratio of myocardial necrotic area to area at risk (AAR), and myocardial malondialdehyde (MDA) and plasma myeloperoxidase (MPO) activities were measured. The apoptotic index (AI) was the percentage of myocytes positive for terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labeling (TUNEL) out of all myocytes stained by 4', 6-diamidino-2-phenylindole (DAPI).The ratio of myocardial necrotic area to AAR significantly decreased in all tirofiban subgroups. The MDA activity for tirofiban concentrations of 2 and 5 ug/kg/minute showed a slight reduction. MPO activity was significantly decreased at a tirofiban concentration of 2 ug/kg/minute. The AI was significantly decreased at a tirofiban concentration of ≥ 0.4 ug/kg/minute.The results indicate that a tirofiban can significantly ameliorate the cardiac RI and myocyte apoptosis in rats.


Assuntos
Traumatismo por Reperfusão Miocárdica/prevenção & controle , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/antagonistas & inibidores , Tirosina/análogos & derivados , Animais , Apoptose , Marcação In Situ das Extremidades Cortadas , Malondialdeído/análise , Traumatismo por Reperfusão Miocárdica/patologia , Miocárdio/química , Miocárdio/patologia , Peroxidase/sangue , Ratos , Ratos Sprague-Dawley , Tirofibana , Tirosina/administração & dosagem , Tirosina/farmacologia , Tirosina/uso terapêutico
4.
Diabetol Metab Syndr ; 16(1): 104, 2024 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-38764060

RESUMO

PURPOSE: To enhance the predictive risk model for all-cause mortality in individuals with Type 2 Diabetes (T2DM) and prolonged Atherosclerotic Cardiovascular Disease (ASCVD) risk factors. Despite the utility of the Coronary Artery Calcium (CAC) score in assessing cardiovascular risk, its capacity to predict all-cause mortality remains limited. METHODS: A retrospective cohort study included 1929 asymptomatic T2DM patients with ASCVD risk factors, aged 40-80. Variables encompassed demographic attributes, clinical parameters, CAC scores, comorbidities, and medication usage. Factors predicting all-cause mortality were selected to create a predictive scoring system. By using stepwise selection in a multivariate Cox proportional hazards model, we divided the patients into three risk groups. RESULTS: In our analysis of all-cause mortality in T2DM patients with extended ASCVD risk factors over 5 years, we identified significant risk factors, their adjusted hazard ratios (aHR), and scores: e.g., CAC score > 1000 (aHR: 1.57, score: 2), CAC score 401-1000 (aHR: 2.05, score: 2), and more. These factors strongly predict all-cause mortality, with varying risk groups (e.g., very low-risk: 2.0%, very high-risk: 24.0%). Significant differences in 5-year overall survival rates were observed among these groups (log-rank test < 0.001). CONCLUSION: The Poh-Ai Predictive Scoring System excels in forecasting mortality and cardiovascular events in individuals with Type 2 Diabetes Mellitus and extended ASCVD risk factors.

5.
Clin Cardiol ; 47(3): e24247, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38450794

RESUMO

BACKGROUND: Previous studies show that using 12-lead electrocardiogram (ECG) or 24-h ECG monitor for the detection of cardiac arrhythmia events in patients with stroke or syncope is ineffective. HYPOTHESIS: The 14-day continuous ECG patch has higher detection rates of arrhythmias compared with conventional 24-h ECG monitoring in patients with ischemic stroke or syncope. METHODS: This cross-sectional study of patients with newly diagnosed ischemic stroke or syncope received a 24-h ECG monitoring and 14-day continuous cardiac monitoring patch and the arrhythmia events were measured. RESULTS: This study enrolled 83 patients with ischemic stroke or syncope. The detection rate of composite cardiac arrhythmias was significantly higher for the 14-day ECG patch than 24-h Holter monitor (69.9% vs. 21.7%, p = .006). In patients with ischemic stroke, the detection rates of cardiac arrhythmias were 63.4% for supraventricular tachycardia (SVT), 7% for ventricular tachycardia (VT), 5.6% for atrial fibrillation (AF), 4.2% for atrioventricular block (AVB), and 1.4% for pause by 14-day ECG patch, respectively. The significant difference in arrhythmic detection rates were found for SVT (45.8%), AF (6%), pause (1.2%), AVB (2.4%), and VT (9.6%) by 14-day ECG patch but not by 24-h Holter monitor in patients with ischemic stroke or syncope. CONCLUSIONS: A 14-day ECG patch can be used on patients with ischemic stroke or syncope for the early detection of AF or other cardiac arrhythmia events. The patch can be helpful for physicians in planning medical or mechanical interventions of patients with ischemic stroke and occult AF.


Assuntos
Fibrilação Atrial , Bloqueio Atrioventricular , AVC Isquêmico , Taquicardia Ventricular , Humanos , Estudos Transversais , Síncope/diagnóstico , Síncope/etiologia , Eletrocardiografia
6.
Circ J ; 76(4): 971-6, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22307382

RESUMO

BACKGROUND: Although the acute effect of intermittent pneumatic compression (IPC) therapy had been documented for patients with symptomatic peripheral arterial obstructive disease (PAOD), its efficacy in improving quality of life (QOL), especially for those with infrapopliteal diffuse lesions, remains unclear. METHODS AND RESULTS: Thirty-one patients with infrapopliteal diffuse or multiple segmental lesions were enrolled in the study. Based on receipt of IPC therapy (3 h daily for 3 months), patients were allocated to a study (n=23) or control (n=8) group. The 6-min walking test, transcutaneous oxygen tension (TcPO2), and QOL evaluated with the Short-Form 36 questionnaire were measured at the beginning and end of the study. In the QOL analysis, scores for physical functioning, physical and emotional role functioning, bodily pain, and general and mental health showed significant changes after IPC therapy. In the 6-min walking test, duration, and the initial and absolute claudication distances were significantly increased in the study group. The TcPO2 also significantly increased in the distal end of the target limb after IPC therapy. CONCLUSIONS: Patients at high risk for amputation with infrapopliteal diffuse or multiple segmental lesions can improve their walking ability, TcPO2 of the target limb and QOL after IPC therapy.


Assuntos
Dispositivos de Compressão Pneumática Intermitente , Doença Arterial Periférica/terapia , Artéria Poplítea , Qualidade de Vida , Idoso , Teste de Esforço , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/complicações , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/fisiopatologia , Doença Arterial Periférica/psicologia , Estudos Prospectivos , Recuperação de Função Fisiológica , Inquéritos e Questionários , Taiwan , Fatores de Tempo , Resultado do Tratamento , Caminhada
7.
Int Heart J ; 52(4): 207-11, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21828945

RESUMO

This study analyzed the corrected QT dispersion (cQTd) before and at 24 hours after successful primary percutaneous coronary intervention (PCI) in 81 patients with single coronary artery disease and acute ST elevation myocardial infarction. Major cardiovascular events (MACE) at 1 year were defined as death, nonfatal myocardial infarction, life-threatening arrhythmias, and heart failure hospitalization. The cQTd before primary PCI was significantly longer in patients without MACE than in patients with MACE (73.1 ± 29.3 versus 56.3 ± 25.2 msec, P = 0.026). The cQTd at 24 hours after primary PCI was significantly shorter in patients without MACE than in patients with MACE (38.4 ± 20.8 versus 50.8 ± 28.7 msec, P = 0.045). Thus, the absolute cQTd change was significantly higher in patients without MACE compared to patients with MACE (P = 0.001). By multivariate analysis, absolute cQTd change was an independent predictor for the development of MACE, with an odds ratio of 1.498 for each 10-msec decrement in absolute cQTd change (95 percent confidence interval, 1.157 to 1.939, P = 0.002). In conclusion, the absolute cQTd change after primary PCI was an independent predictor of the development of MACE in patients with single vessel disease and acute ST elevation myocardial infarction.


Assuntos
Angioplastia Coronária com Balão/efeitos adversos , Arritmias Cardíacas/etiologia , Morte Súbita Cardíaca/etiologia , Eletrocardiografia , Insuficiência Cardíaca/etiologia , Infarto do Miocárdio/fisiopatologia , Arritmias Cardíacas/epidemiologia , Arritmias Cardíacas/fisiopatologia , Morte Súbita Cardíaca/epidemiologia , Feminino , Seguimentos , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/fisiopatologia , Hospitalização/tendências , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/terapia , Prognóstico , Recidiva , Estudos Retrospectivos , Fatores de Risco , Taiwan/epidemiologia , Fatores de Tempo
8.
J Sex Med ; 7(8): 2798-804, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20561171

RESUMO

INTRODUCTION: Accumulated evidence shows that erectile dysfunction (ED) may be a precursor of coronary artery disease (CAD). AIMS: The purpose of this study was to explore the differences in coronary phenotypes between patients with ED and patients with angina pectoris. METHODS: The study enrolled 30 ED patients (study group) and 120 age-matched angina patients who had no ED (control group). All patients had angiographically documented CAD. MAIN OUTCOME MEASURES: The differences in demographic characteristics, biochemical profiles and coronary characteristics between the study and control groups were compared. RESULTS: Diabetes mellitus (DM) and obesity defined by body mass index were more common in the study group than in the control group. The mean number of lesions and mean number of vessels with evidence of CAD were significantly different between the study and control groups (2.3 ± 0.1 vs. 2.2 ± 0.1, P < 0.001; 2.0 ± 0.2 vs. 1.8 ± 0.1, P < 0.001). The distribution of vessel involvement was similar between the groups, except for more common involvement of the ramus in the study group. There were no differences in distribution of lesion sites between the two groups. The control group had a higher percentage of type A stenotic lesions than the study group (16.3% vs. 2.9%, P = 0.004). Significant differences were also observed in type C lesions (52.9% in study group vs. 38.0% in control group, P = 0.026). Fewer calcified, irregular, and bifurcated lesions were present in the study group compared to control. CONCLUSIONS: This study documented coronary phenotypes in ED patients without symptomatic CAD. Although the artery size hypothesis and ED had well been thought to be a precursor of CAD, the severity of coronary lesions in these patients was not more benign than that observed in angina pectoris patients who have no ED.


Assuntos
Doença da Artéria Coronariana/epidemiologia , Impotência Vasculogênica/epidemiologia , Isquemia Miocárdica/epidemiologia , Fenótipo , Índice de Massa Corporal , Comorbidade , Angiografia Coronária , Doença da Artéria Coronariana/diagnóstico , Estudos Transversais , Humanos , Impotência Vasculogênica/etiologia , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/diagnóstico , Projetos Piloto , Fatores de Risco , Taiwan
9.
J Sex Med ; 7(4 Pt 1): 1478-87, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19878446

RESUMO

INTRODUCTION: There is growing evidence of a link between erectile dysfunction (ED) and coronary artery disease (CAD). AIMS: The purpose of this study was to explore the independent determinants of CAD in ED outpatients. METHODS: This study enrolled 243 patients, ranging in age from 21 to 81 years old, suffering from ED as diagnosed by the International Index of Erectile Function (IIEF) scores. All patients underwent exercise stress tests or thallium-201 single-photon emission computed tomography perfusion imagings. Based on examination results, patients were divided into study (22 patients with a positive finding) and control groups (221 patients with a negative finding). MAIN OUTCOME MEASURES: The differences of demographic characteristics, biochemical profiles, pro-inflammatory and inflammatory markers, and echocardiographic characteristics between study and control group were compared. RESULTS: The age, presence of DM and current smoking status were significant high in the study group. A significant lower high-density lipoprotein (HDL) cholesterol level, a higher percentage of HDL cholesterol level < 40 mg/dL, and a higher apo-lipoprotein B/A1, high sensitive C-reactive protein (hs-CRP) and homocysteine found in the study group. The Framingham cardiac risk scores, the ratio of mitral inflow velocity to early diastolic velocity in the annulus derived by tissue Doppler imaging (E/Et), the ratio of E/Et > or = 15, the value of carotid intima-media thickness (IMT), and IMT > or = 1 mm were higher in study group than in the control group. In stepwise multiple logistic regression analysis, a high waist-to-hip ratio (WHR), high IMT, high E/Et, hs-CRP levels, LDL cholesterol > or = 130 mg/dL, smoking status, and the presence of DM and metabolic syndrome (MS) were independent determinants of CAD in ED patients. CONCLUSIONS: This study first shows the independent determinants of CAD in ED outpatients. This novel finding may improve the screening of low-risk ED patients for CAD.


Assuntos
Doença da Artéria Coronariana/epidemiologia , Impotência Vasculogênica/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Doença da Artéria Coronariana/diagnóstico , Ecocardiografia , Teste de Esforço , Humanos , Impotência Vasculogênica/diagnóstico , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão do Miocárdio , Estudos Prospectivos , Fatores de Risco , Tomografia Computadorizada de Emissão de Fóton Único , Adulto Jovem
10.
World J Urol ; 28(5): 625-30, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19890650

RESUMO

PURPOSE: Erectile dysfunction (ED) is an early sign of vascular dysfunction. Studies have reported a correlation between arterial stiffness and cardiovascular events. The objective of this study was to evaluate the association among different criteria for assessing arterial stiffness and cardiovascular risk factors in ED patients. METHODS: Assessment of pulse wave velocity (PWV), pulse pressure (PP), ratio of mitral inflow velocity to early diastolic velocity in the annulus derived by tissue Doppler imaging (E/Et), and intima-medial thickness (IMT) were performed in 200 ED patients. RESULTS: Linear statistical analysis of the coronary artery disease risk factors revealed that PWV, PP and E/Et were positively correlated with age, duration of diabetes mellitus (DM), and systolic and diastolic blood pressures. PWV and E/Et were positively correlated with waist circumference and number of metabolic syndrome (MS) components. For category-wise analysis, the PWV, PP and E/Et were higher in patients with DM, hypertension and MS. Multiple regression analysis showed that the independent determinants for PWV comprised age, DM, hypertension, and MS; for PP comprised age, hypertension, and MS; for E/Et comprised age and MS; and for IMT comprised only DM. CONCLUSIONS: Thus, PWV, PP and E/Et may be employed as markers to identify ED patients with potential cardiovascular risk factors, including MS and obesity.


Assuntos
Artéria Braquial/fisiologia , Doenças Cardiovasculares/epidemiologia , Elasticidade/fisiologia , Disfunção Erétil/complicações , Disfunção Erétil/fisiopatologia , Velocidade do Fluxo Sanguíneo/fisiologia , Pressão Sanguínea/fisiologia , Artéria Braquial/diagnóstico por imagem , Complicações do Diabetes/complicações , Complicações do Diabetes/fisiopatologia , Humanos , Hipertensão/complicações , Hipertensão/fisiopatologia , Masculino , Síndrome Metabólica/complicações , Síndrome Metabólica/fisiopatologia , Pessoa de Meia-Idade , Fluxo Sanguíneo Regional/fisiologia , Fatores de Risco , Túnica Íntima/diagnóstico por imagem , Túnica Média/diagnóstico por imagem , Ultrassonografia Doppler
11.
PLoS One ; 15(12): e0244589, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33382775

RESUMO

PURPOSE: The aim is to determine whether serial post-systolic shortening (PSS) using speckle tracking echocardiography (STE) could predict major adverse cardiovascular events (MACE), especially symptom-driven infarct-related artery (IRA) revascularization and improvement in segmental function in post-myocardial infarction patients. METHODS/RESULTS: Ninety-four patients (average age 61.1 ± 12.5 y, 84 [84.9%] male) with new-onset acute myocardial infarction were enrolled. Serial echocardiography was performed during the initial presentation, and at 3, 6 and 12 months after admission. PSS, strain and systolic strain rate were calculated using STE. Improvement in segmental function was defined as a decrease of ≧1 grade in wall motion score. During the follow-up (29.4 ± 12.7months), 22 patients (23.4%) had MACE and 17 patients had symptom-driven IRA revascularization. In multivariate model, PSS at 3 months was independently predictive for symptom-driven IRA revascularization (Hazard ratio (HR) = 0.5, 95% CI = 0.26-0.97) and for MACE (HR = 0.4, 95% CI = 0.24-0.67) (p < 0.05). Segmental function improvements were found in 255 segments (66.1%) and ROC curve analyses showed that AUC (95% CI) of the initial PSS was 0.7(0.65-0.77) (cut-off values = -1.08, sensitivity = 58%, specificity = 73% specificity). CONCLUSIONS: Post-systolic shortening at 3 months is an independent predictor for symptom-driven IRA revascularization and MACE. Regional wall motion recovery also could be predicted by initial PSS. Serial assessment of two-dimensional STE should be investigated in post-myocardial infarction patients in the future.


Assuntos
Doenças Cardiovasculares/etiologia , Ecocardiografia/métodos , Ventrículos do Coração/diagnóstico por imagem , Infarto do Miocárdio/terapia , Idoso , Angioplastia Coronária com Balão , Feminino , Ventrículos do Coração/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Infarto do Miocárdio/diagnóstico por imagem , Curva ROC , Volume Sistólico , Função Ventricular Esquerda
12.
Catheter Cardiovasc Interv ; 74(4): 555-63, 2009 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-19360876

RESUMO

OBJECTIVES: The goal of this study was to compare the antegrade-approach and bilateral-approach strategies for chronic total occlusion (CTO). BACKGROUND: The retrograde approach has been reported for difficult CTO lesions. METHODS: This study assessed 96 consecutive patients with 119 CTO lesions. The lesions were treated with either an antegrade approach (A group) or a combined bilateral antegrade and retrograde approach (B group). The specific intervention techniques, in-hospital success rate, and major adverse cardiac and cerebrovascular events (MACCE) were compared. RESULTS: Lesions with well-developed septal collaterals with nontortuous microchannels were preferentially chosen for the B group versus A group (P < 0.001 and 0.008, respectively). Compared with the A group, there were more CTO lesions located in the right coronary artery in the B group (P < 0.001). In the B group, the CTO lesions had a longer length and needed stiffer wires for crossing than in the A group (P = 0.001 and 0.046, respectively). The technical success rate was 94% and 86% for the A group and the B group, respectively (P = 0.127). In-hospital complications were not different between the two groups. The B group needed a higher radiation exposure dose and a greater exposure time than the A group (P < 0.001). In the B group, use of the retrograde method significantly increased the final success rate. CONCLUSIONS: These results suggest that all CTO lesions should first be managed with an antegrade approach. When there is difficulty crossing the lesion, switching to a bilateral approach is an option for lesions with well-developed collaterals.


Assuntos
Angioplastia Coronária com Balão/métodos , Oclusão Coronária/terapia , Idoso , Angioplastia Coronária com Balão/efeitos adversos , Transtornos Cerebrovasculares/etiologia , Doença Crônica , Circulação Colateral , Angiografia Coronária , Circulação Coronária , Oclusão Coronária/diagnóstico por imagem , Oclusão Coronária/fisiopatologia , Estudos de Viabilidade , Feminino , Cardiopatias/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Doses de Radiação , Estudos Retrospectivos , Medição de Risco , Fatores de Tempo , Resultado do Tratamento
13.
Acta Cardiol ; 64(3): 291-6, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19593937

RESUMO

OBJECTIVES: Obesity is a risk factor for all-cause mortality. The obesity incidence depends on different definitions. Among patients with high-risk coronary heart disease (HRCA), we have studied differences in obesity incidence, according to different anthropometric indices. METHODS AND RESULTS: Based on the definitions of the International Guidelines Committees for body mass index (BMI), waist circumference (WCF), and waist-hip ratio (WHR), we have classified 487 CAD patients into 3 groups: normal (group 1), overweight (group 2), and obese patients (group 3). Among men, obesity criteria BMI, WCF and WHR were positive in 17.5%, 14.2%, and 66.4% of the subjects. Among male subjects < 65 years, the incidence of HRCA (%), for the 3 groups (normal, overweight, obese) were for BMI (2.4, 21.5, 28.9, P = 0.005); WCF (17.9, 12.1, 37.9, P = 0.012); WHR (0, 15.4, 30.4, P = 0.024). In male subjects > 65 years, for the HRCA incidence (%), only WHR showed a significant difference between the 3 groups (0, 15.4, 30.4, P = 0.024). Among women, 30.6%, 63.6%, and 87.6% were obese by the BMI, WCF, and WHR criteria, respectively. We did not find any significant differences in the HRCA distribution between age groups and degrees of obesity. CONCLUSIONS: HRCA distribution varied among obese male patients. According to the different methods of measurement, obesity percentages varied from 4- to 5-fold among men and 3-fold among women. In our view,WHR measurement is the method of choice for the determination of obesity among patients with CAD.


Assuntos
Antropometria , Doença da Artéria Coronariana/epidemiologia , Obesidade/classificação , Sobrepeso/classificação , Adulto , Idoso , Índice de Massa Corporal , Doença da Artéria Coronariana/etiologia , Doença da Artéria Coronariana/mortalidade , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Sobrepeso/complicações , Valores de Referência , Fatores de Risco , Taiwan/epidemiologia , Circunferência da Cintura , Relação Cintura-Quadril , Adulto Jovem
14.
Semin Dial ; 21(6): 567-74, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19000129

RESUMO

BACKGROUND: This retrospective study evaluated the feasibility and efficacy of trans-radial intervention for upper arm dialysis access. METHODS: This study retrospectively reviewed 165 trans-radial interventions performed for upper arm dialysis access in 101 patients. Sixty-nine patients had arteriovenous graft (AVG), and 32 had arteriovenous fistula (AVF). Balloon angioplasty was performed in 66 stenotic dialysis accesses and 99 thrombosed dialysis accesses. Thrombosed dialysis access was further managed by additional balloon thrombectomy with or without urokinase injection. RESULTS: Procedural time was 46.7 +/- 25.5 minutes. Anatomic and clinical success rates were 89.7% and 84.2%, respectively. The rate of complications, most of which involved lesion rupture with contrast-media extravasation and distal embolism, was 9.7%. Pretreatment stenosis was more severe (p = 0.01) and the prevalence of total occlusion was higher (p < 0.01) in the AVG group than the AVF group. The success rate and complication rate did not statistically differ (p = 0.59). Additionally, the thrombosed group had a lower success rate (p = 0.02), a higher complication rate (p < 0.01) and a longer procedural time (p < 0.01) than the stenotic group. CONCLUSIONS: Comparison with previous studies employing the traditional approach reveals that trans-radial intervention has a comparable success rate, procedural time and complication rate for upper arm dialysis access. Therefore, trans-radial intervention is a safe and feasible technique for upper arm dialysis access.


Assuntos
Derivação Arteriovenosa Cirúrgica , Cateteres de Demora , Diálise Renal , Adulto , Idoso , Idoso de 80 Anos ou mais , Braço , Derivação Arteriovenosa Cirúrgica/métodos , Prótese Vascular , Implante de Prótese Vascular/métodos , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
15.
Eur J Pharmacol ; 832: 33-38, 2018 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-29778748

RESUMO

The thrombolytic effect of platelet glycoprotein IIb/IIIa inhibitors (GP IIb/IIIa inhibitors) in myocardial infarction has been well established. Nevertheless, data on the mechanism of the cardioprotective effect of GP IIb/IIIa inhibitors in ischemic-reperfusion injury (IR) are lacking. Sprague-Dawley rats received 120 min of coronary ischemia and 180 min of reperfusion. A GP IIb/IIIa inhibitor was given via continuous intravenous infusion at a rate of 2 µg/kg/min 30 min prior to reperfusion with/without inhibitors of PKCε (chelerythrine), PI3 kinase and Akt (wortmannin), p38 MAPK (SB203582), p42/44 MAPK (PD98059) and ERK1/2 (u0126) 15 min prior to the GP IIb/IIIa inhibitor. Protein isolation and analysis were performed by Western blot analysis. The cardioprotective effects were measured as the ratio of myocardial necrotic area to the area at risk (AAR) and the apoptotic index (AI) calculated as the percentage of myocytes positive for terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labeling of all myocytes stained by 4', 6-diamidino-2-phenylindole. The GP IIb/IIIa inhibitor reduced the ratio of myocardial necrotic area to AAR and AI, and also exerted an immediate cardioprotective effect by activating multiple signaling pathways including phosphorylation and activation of PKCε, PI3 kinase, Akt, p38 MAPK, p42/44 MAPK and ERK1/2. However, there were no significant increases in the phosphorylation of Raf and MEK1/2. We concluded that the GP IIb/IIIa inhibitor reduced the extent of cardiac IR and significantly ameliorate the apoptosis of myocytes in the rats. In addition, the cardioprotective effect was mediated through the activation of multiple signal transduction pathways.


Assuntos
Cardiotônicos/farmacologia , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/antagonistas & inibidores , Proteínas Quinases/metabolismo , Tirosina/análogos & derivados , Animais , Ativação Enzimática/efeitos dos fármacos , Masculino , Infarto do Miocárdio/complicações , Traumatismo por Reperfusão Miocárdica/complicações , Traumatismo por Reperfusão Miocárdica/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteína Quinase C-épsilon/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Ratos , Ratos Sprague-Dawley , Tirofibana , Tirosina/farmacologia
16.
PLoS One ; 13(2): e0185693, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29394255

RESUMO

BACKGROUND: Estimated glomerular filtration rate (eGFR) is used for diagnosis of chronic kidney disease (CKD). The eGFR models based on serum creatinine or cystatin C are used more in clinical practice. Albuminuria and neck circumference are associated with CKD and may have correlations with eGFR. AIM: We explored the correlations and modelling formulates among various indicators such as serum creatinine, cystatin C, albuminuria, and neck circumference for eGFR. DESIGN: Cross-sectional study. METHODS: We reviewed the records of patients with high cardiovascular risk from 2010 to 2011 in Taiwan. 24-hour urine creatinine clearance was used as the standard. We utilized a decision tree to select for variables and adopted a stepwise regression method to generate five models. Model 1 was based on only serum creatinine and was adjusted for age and gender. Model 2 added serum cystatin C, models 3 and 4 added albuminuria and neck circumference, respectively. Model 5 simultaneously added both albuminuria and neck circumference. RESULTS: Total 177 patients were recruited in this study. In model 1, the bias was 2.01 and its precision was 14.04. In model 2, the bias was reduced to 1.86 with a precision of 13.48. The bias of model 3 was 1.49 with a precision of 12.89, and the bias for model 4 was 1.74 with a precision of 12.97. In model 5, the bias could be lower to 1.40 with a precision of 12.53. CONCLUSIONS: In this study, the predicting ability of eGFR was improved after the addition of serum cystatin C compared to serum creatinine alone. The bias was more significantly reduced by the calculation of albuminuria. Furthermore, the model generated by combined albuminuria and neck circumference could provide the best eGFR predictions among these five eGFR models. Neck circumference can be investigated potentially in the further studies.


Assuntos
Albuminúria/fisiopatologia , Antropometria , Doenças Cardiovasculares/epidemiologia , Taxa de Filtração Glomerular , Pescoço/anatomia & histologia , Idoso , Doenças Cardiovasculares/diagnóstico , Creatinina/sangue , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Taiwan
17.
Tex Heart Inst J ; 34(2): 244-6, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17622380

RESUMO

We report the case of a 65-year-old man with a 6-year history of hypertension who presented with dilated cardiomyopathy, a transient cerebrovascular event, paroxysmal sweating, and intractable hypertension. Coronary angiography revealed no abnormality, but diagnostic testing was pursued because of the severe sweating and hypertension. Two-dimensional echocardiography showed 4-chamber dilatation with decreased left ventricular contractility. Further investigation, including a computed tomographic scan of the abdomen, led to a diagnosis of pheochromocytoma. Surgical resection of a left adrenal pheochromocytoma quickly resolved the patient's hypertension and resulted in substantially improved cardiac function after 4 months. Although pheochromocytoma has rarely been reported in the presence of both dilated cardiomyopathy and cerebrovascular events, it should be included in the differential diagnosis when patients present with dilated cardiomyopathy and a cerebrovascular event that have no obvious cause.


Assuntos
Neoplasias das Glândulas Suprarrenais/complicações , Cardiomiopatia Dilatada/complicações , Hipertensão/complicações , Feocromocitoma/complicações , Acidente Vascular Cerebral/etiologia , Neoplasias das Glândulas Suprarrenais/diagnóstico , Neoplasias das Glândulas Suprarrenais/cirurgia , Idoso , Cardiomiopatia Dilatada/diagnóstico por imagem , Cardiomiopatia Dilatada/etiologia , Diagnóstico Diferencial , Humanos , Hipertensão/diagnóstico por imagem , Hipertensão/etiologia , Masculino , Feocromocitoma/diagnóstico , Feocromocitoma/cirurgia , Radiografia Torácica , Acidente Vascular Cerebral/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Resultado do Tratamento
18.
J Clin Lipidol ; 11(2): 422-431.e2, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28502499

RESUMO

BACKGROUND: Treatment with statin may be beneficial for patients with chronic kidney disease (CKD). However, the debate over the clinical importance of statin in patients with predialysis advanced CKD remains unresolved. OBJECTIVES: The objective of the article was to evaluate the effect of statin on mortality, cerebrovascular, and renal outcomes in patients with predialysis advanced CKD and dyslipidemia. METHODS: Data on predialysis advanced CKD patients were retrieved from the National Health Insurance Research Database based on the guidelines for prescribing regular erythropoietin-stimulating agent in CKD patients. Patients with dyslipidemia were further selected and divided into 2 groups by their statin use after the prescribed erythropoietin-stimulating agent. All-cause mortality and cerebrovascular and renal outcomes were analyzed after propensity score matching. RESULTS: There were 2016 and 14,412 patients in the statin and nonstatin groups. Their average follow-up periods were 3.7 and 3.0 years, respectively. After 1:2 propensity score matching, the annual all-cause mortality rate was higher in the nonstatin than in the statin group (143.99 vs 109.50 per 1000 person-years; P < .001; hazard ratio: 0.73; 95% confidence interval: 0.68-080). The annual risk of ischemic stroke (P = .186) and intracranial hemorrhage (P = .322) were not significantly different between the 2 groups. The nonstatin group had a higher risk of dialysis than the statin group (1269.45 vs 1095.00 per 1000 person-years; P = .002). Adverse events were not significant between the 2 groups. CONCLUSIONS: Statins may reduce the all-cause mortality and reduced the risk of dialysis in patients with predialysis advanced CKD and dyslipidemia. However, statins have no impact on ischemic-hemorrhage stroke.


Assuntos
Encéfalo/irrigação sanguínea , Dislipidemias/complicações , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Rim/efeitos dos fármacos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Idoso , Encéfalo/efeitos dos fármacos , Isquemia Encefálica/prevenção & controle , Estudos de Coortes , Feminino , Hemorragia/prevenção & controle , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Masculino , Pessoa de Meia-Idade , Diálise Renal , Estudos Retrospectivos
19.
Medicine (Baltimore) ; 95(39): e5014, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27684869

RESUMO

BACKGROUND: Epicardial pacing wires (EPWs) are commonly employed for diagnosis and treatment of arrhythmia in the acute phase after cardiac surgery. Although rare, retained EPWs may cause mild-to-catastrophic complications. The present case demonstrates hemopericardium caused by a mobile retained EPW. METHODS: A 49-year-old woman presented to our emergency department with clinical signs of impending cardiac tamponade. She had undergone ventricular septal defect repair 7 years before this admission. An initial computed tomography (CT) scan revealed hemopericardium with suspicion of a possible intracardiac lesion. Review of the first and second CT scans, however, revealed a mobile retained EPW penetrating the pericardium in the first scan, which had moved out of the pericardium in the second scan. RESULTS: Because cardiac injury by the EPW was suspected, the patient was transferred to another medical center for further treatment. CONCLUSION: According to our experience with this case, diagnosis may be incorrect if CT is unable to obtain decisive images of the mobile EPW at the correct time. Multiplanar reconstruction and volume rendering can increase diagnostic accuracy. In conclusion, if hemopericardium is present without clear etiology in a patient with a retained EPW, a nearby mobile EPW may be the cause.


Assuntos
Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Eletrodos Implantados/efeitos adversos , Comunicação Interventricular/cirurgia , Marca-Passo Artificial/efeitos adversos , Derrame Pericárdico/etiologia , Eletrocardiografia , Feminino , Ventrículos do Coração , Humanos , Pessoa de Meia-Idade , Derrame Pericárdico/diagnóstico , Pericárdio , Complicações Pós-Operatórias , Tomografia Computadorizada por Raios X
20.
PLoS One ; 11(12): e0168109, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28033331

RESUMO

OBJECTIVES: Left ventricular remodeling after acute myocardial infarction increases cardiovascular events and mortality. But few study was done in patients with preserved ejection fraction (EF > 40%). We investigate whether the strain and strain rate by 2D speckle tracking echocardiography could predict left ventricular remodeling after acute myocardial infarction in this cohort. METHODS: The 83 patients (average age 60.7 ± 12.3 y, 75 [90.4%] male) with new-onset acute myocardial infarction receiving echocardiography immediately, and 6 months after admission were grouped by the presence or absence of left ventricular remodeling. Strain and strain rate including longitudinal, circumferential, and radial direction were calculated. The average of strain and strain rate of which segmental longitudinal strains > - 15% were defined as the injury longitudinal strain (InjLS). RESULTS: Left ventricular remodeling occurred in 24 of 83 patients (28.9%). In univariate logistic regression analyses, gender, peak CK-MB, log BNP, use of statin before discharge, wall motion score index, and InjLS were significantly associated with left ventricular remodeling (p < 0.05). In multivariate analysis using the forward stepwise method, gender, CK-MB, and InjLS were independent predictors. The hazard ratio for InjLS was 1.48 (p = 0.04). Receiver operating characteristic curve (ROC) analyses showed the area under the curve (AUC) of InjLS was largest (AUC = 0.75, cut-off value = -11.7%, sensitivity = 81%, specificity = 71%, p < 0.01). In ST-segment elevation myocardial infarction subgroup, InjLS was the only predictor according to ROC analysis (AUC = 0.79, p < 0.01, cut-off value = -11.4%, sensitivity = 88%, specificity = 77%) and multivariate logistic regression analysis (hazard ratio = 1.88, 95% CI: 1.22-2.88, p < 0.01). CONCLUSIONS: InjLS was an excellent predictor for left ventricular remodeling after acute myocardial infarction in patient with preserved ejection fraction.


Assuntos
Ecocardiografia/métodos , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/fisiopatologia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia , Remodelação Ventricular/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Área Sob a Curva , Proteína C-Reativa/metabolismo , Creatina Quinase/sangue , Creatinina/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Peptídeo Natriurético Encefálico/sangue , Curva ROC , Volume Sistólico/fisiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA