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1.
Heart Lung Circ ; 31(1): 110-118, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34130918

RESUMO

BACKGROUND: Chronic thromboembolic pulmonary hypertension (CTEPH) is a form of pulmonary embolism, and pulmonary endarterectomy (PEA) is the surgical treatment. Asymmetric dimethylarginine (ADMA) levels are increased in pulmonary hypertension. This study aimed to investigate serum ADMA levels in patients with CTEPH, the effect of PEA on ADMA, and its prognostic value in long-term mortality. METHOD: Eighty (80) patients with CTEPH and 32 healthy controls were included. Preoperative serum ADMA levels, determined using an enzyme-linked immunosorbent assay, were compared between patients with CTEPH and controls. Of 80 patients, 64 had PEA. Pre- and 6-month postoperative serum ADMA levels, 6-minute walk distance (6MWD), and haemodynamic parameters were collected from patients undergoing PEA. Patients were followed-up for survival analysis. RESULTS: Mean ± standard deviation serum ADMA levels were significantly higher in patients with CTEPH compared with controls (0.79±0.32 µmol/L vs 0.52±0.12 µmol/L; p=0.0001). Statistically significant differences were observed between preoperative and postoperative serum ADMA levels (0.78±0.30 µmol/L vs 0.62±0.22 µmol/L; p=0.0001), 6MWD (p=0.0001), and pulmonary vascular resistance (p=0.0001) in 60 patients who underwent and survived PEA. The decrease in serum ADMA levels and increase in 6MWD were significantly correlated (r=-0.286, p=0.027). No other correlation was found. Perioperative mortality was 6.3%, and the survival rate with a mean follow-up of 34.57±8.20 months was 93.3%. Patients with serum ADMA levels >0.8 µmol/L had a significantly lower survival rate (logrank: 5.86; p=0.015). CONCLUSIONS: Levels of circulating ADMA might add diagnostic and prognostic information in CTEPH. Pulmonary endarterectomy is associated with an improvement in serum ADMA levels. Preoperative serum ADMA levels may be useful for estimating the outcome of PEA.


Assuntos
Hipertensão Pulmonar , Arginina/análogos & derivados , Doença Crônica , Endarterectomia , Humanos , Hipertensão Pulmonar/diagnóstico , Hipertensão Pulmonar/cirurgia
2.
Ultrason Imaging ; 38(3): 225-35, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26157039

RESUMO

Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in clinical practice, and there is an increasing trend in its prevalence in the general population. Recent studies have demonstrated increased risk of atrial fibrillation (AF) in NAFLD. However, information on the mechanism of increased risk of AF in NAFLD is lacking. Impaired atrial conduction is an important factor in the pathophysiology of AF. We aimed to investigate atrial conduction properties in patients with NAFLD by tissue Doppler echocardiography. Fifty-nine ultrasound diagnosed NAFLD patients without clinical diagnosis of hypertension, diabetes mellitus, or cardiac disease and 22 normal subjects as controls were included in this study. Atrial conduction properties were assessed by electromechanical delay (EMD) derived from Doppler tissue echocardiography examination and P-wave dispersion (PWD) calculated from the 12-lead electrocardiogram. Inter-atrial and intra-atrial EMD intervals were significantly longer in NAFLD patients than in controls (inter-atrial EMD, 31.9 ± 8.5 ms vs. 23.4 ± 4.6 ms,p= 0.0001, and intra-atrial EMD, 14.3 ± 5.2 vs. 10.2 ± 4.0 ms,p= 0.001). Similarly, PWD was significantly higher in NAFLD patients compared with controls (49.2 ± 6.3 ms vs. 43.3 ± 4.2 ms,p= 0.0001). Maximum left atrial volume was also significantly higher in the NAFLD group than in controls (51 ± 11 mL vs. 34 ± 9 mL,p< 0.0001). This study demonstrated that atrial conduction is impaired in patients with NAFLD. Also, in a patient population of NAFLD without any clinical diagnosis of cardiac disease, diabetes, or hypertension, left atrial volume was increased compared with controls. These findings suggest impaired atrial conduction as a factor in increased risk of AF in NAFLD.


Assuntos
Átrios do Coração/diagnóstico por imagem , Átrios do Coração/fisiopatologia , Sistema de Condução Cardíaco/fisiopatologia , Hepatopatia Gordurosa não Alcoólica/fisiopatologia , Adulto , Fibrilação Atrial/fisiopatologia , Estudos de Casos e Controles , Ecocardiografia Doppler , Eletrocardiografia , Feminino , Humanos , Masculino
3.
Cardiol Young ; 25(7): 1387-8, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25275566

RESUMO

Acute type A aortic dissection is a catastrophic situation, often accompanied by aortic regurgitation. A rarely described cause of aortic regurgitation, in this clinical scenario, is the prolapse of an intimal flap into the left ventricular outflow tract. We present here a case of acute type A aortic dissection with a circumferential intimal flap, prolapsing into the left ventricular outflow tract and causing massive aortic regurgitation.


Assuntos
Aneurisma da Aorta Torácica/complicações , Dissecção Aórtica/complicações , Insuficiência da Valva Aórtica/cirurgia , Endotélio Vascular/diagnóstico por imagem , Ventrículos do Coração/diagnóstico por imagem , Adulto , Dor no Peito/etiologia , Ecocardiografia Transesofagiana , Humanos , Masculino
4.
Med Sci Monit ; 20: 1539-43, 2014 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-25168159

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) has been considered as a benign disease often associated with central obesity and insulin resistance and, in general, with factors of the metabolic syndrome. Heart rate recovery after exercise is a function of vagal reactivation, and its impairment is an independent prognostic indicator for cardiovascular and all-cause mortality. The aim of our study was to evaluate the heart rate recovery index in patients with NAFLD. MATERIAL AND METHODS: The study population included 59 patients with NAFLD (mean age=42.3±9.3 years) and 22 healthy subjects as controls (mean age=40.7±6.5 years). Basal electrocardiography, echocardiography, and treadmill exercise testing were performed on all patients and controls. The heart rate recovery index was defined as the reduction in the heart rate from the rate at peak exercise to the rate at the 1st minute (HRR1), 2nd minute (HRR2), 3rd minute (HRR3), and 5th minute (HRR5) after stopping exercise stress testing. RESULTS: There were significant differences in HRR1 and HRR2 indices between patients with ED and the control group (19.9±8.2 vs. 34.1±9.6; p<0.001 and 24.3±5.4 vs. 40.5±9.1; p=0.006, respectively). Similarly, HRR indices after the 3rd and 5th minutes of the recovery period were significantly lower in patients with NAFLD compared with those indices in the control group (32.3±8.5 vs. 58.4±6.5; p=0.001 and 58±18.2 vs. 75.1±15.8; p<0.001). Effort capacity was markedly lower (11±1.9 vs. 12.5±1.5 METs; p=0.001) among the patients with NAFLD. CONCLUSIONS: The heart rate recovery index is deteriorated in patients with NAFLD. When the prognostic significance of the heart rate recovery index is considered, these results may help explain the increased occurrence of cardiac death. It points to the importance of the heart rate recovery index in the identification of high-risk patients.


Assuntos
Frequência Cardíaca/fisiologia , Hepatopatia Gordurosa não Alcoólica/fisiopatologia , Adulto , Estudos de Casos e Controles , Teste de Esforço , Feminino , Humanos , Masculino , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Ultrassonografia
5.
Turk Kardiyol Dern Ars ; 42(7): 629-34, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25490297

RESUMO

OBJECTIVES: The aim was to investigate the microbiological characteristics and complications of infective endocarditis (IE) in 119 patients treated in our center for IE, diagnosed by modified Duke criteria. STUDY DESIGN: The archive records of 119 patients (82 [69%] males; 37 [31%] females; mean age 39 ± 16 years) with a definite diagnosis of IE between January 1997 and November 2004 were systematically reviewed for clinical and microbiological properties and complications. RESULTS: The most common complaint of the patients was fever and malaise (102 patients, 85.7%, each). Culture was negative in 68 patients (57.1%), while Staphylococcus aureus was the most common etiological agent in culture positive cases. The aortic valve was the most common region of vegetation (43 patients, 36.1%). The frequency of surgical operation for valvular insufficiency due to IE was 75.6%, and the frequency of congestive heart failure was 53.8% (64 patients). CONCLUSION: IE is still an important disease considering its high morbidity and mortality rates, increased life expectancy of the patients, and increased number of valve replacement procedures.


Assuntos
Endocardite Bacteriana/epidemiologia , Infecções Estafilocócicas/epidemiologia , Staphylococcus aureus/isolamento & purificação , Adulto , Valva Aórtica/microbiologia , Endocardite Bacteriana/complicações , Endocardite Bacteriana/microbiologia , Feminino , Humanos , Masculino , Valva Mitral/microbiologia , Estudos Retrospectivos , Infecções Estafilocócicas/complicações , Infecções Estafilocócicas/microbiologia , Turquia/epidemiologia
6.
Clin Exp Hypertens ; 35(6): 454-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23194403

RESUMO

The aim of this study was to investigate the relationship between left ventricular mass (LVM) and interatrial conduction delay (CD) measured by tissue Doppler echocardiography. In enrolled 66 hypertensive patients, positive correlation between interatrial CD and LVM index (r = 0.32) was detected. Meanwhile, intra-atrial CD was correlated to early diastolic tissue Doppler mitral annular velocity measured from septum (r = 0.34), tricuspid annular velocity (r = 0.29), and left atrial volume index (r = 0.26). By using stepwise linear regression analysis, LVM index was determined as an independent predictor of interatrial CD.


Assuntos
Arritmias Cardíacas/etiologia , Sistema de Condução Cardíaco/anormalidades , Hipertensão/complicações , Hipertrofia Ventricular Esquerda/complicações , Idoso , Arritmias Cardíacas/diagnóstico por imagem , Arritmias Cardíacas/fisiopatologia , Síndrome de Brugada , Doença do Sistema de Condução Cardíaco , Ecocardiografia Doppler em Cores , Eletrocardiografia , Feminino , Átrios do Coração/diagnóstico por imagem , Átrios do Coração/fisiopatologia , Sistema de Condução Cardíaco/diagnóstico por imagem , Sistema de Condução Cardíaco/fisiopatologia , Humanos , Hipertensão/diagnóstico por imagem , Hipertensão/fisiopatologia , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/fisiopatologia , Masculino , Pessoa de Meia-Idade , Valva Tricúspide/diagnóstico por imagem , Valva Tricúspide/fisiopatologia
7.
Turk Kardiyol Dern Ars ; 41(7): 589-94, 2013 Oct.
Artigo em Turco | MEDLINE | ID: mdl-24164988

RESUMO

OBJECTIVES: The aim of this study was to investigate the value of plasma D-dimer (DD) levels for predicting systemic embolism in patients with infective endocarditis (IE). STUDY DESIGN: A total of 42 patients (mean age: 46±16 years; 78% males) with IE were included. Clinical, laboratory and echocardiographic findings of the patients were evaluated. RESULTS: Increased plasma DD levels were determined in 13 patients with systemic embolism (p=0.016). Moreover, when patients were divided in two groups as DD >500 ng/dl and DD <500 ng/dl, systemic embolism was increased in the DD >500 ng/dl group (p=0.036). Receiver operating characteristics (ROC) curve analysis was performed to detect the best cut-off value of DD in the prediction of systemic embolism. DD >425 ng/dl yielded an area under the curve (AUC) value of 0.735 (95% CI 0.560-0.909, p=0.016). DD >425 ng/dl demonstrated a sensitivity of 77% and specificity of 62% for the prediction of clinical embolism. Hematocrit (r=-0.31, p=0.045), platelet count (r=-0.40, p=0.009), albumin (r=-0.37, p=0.026), and globulin (r=0.38, p=0.028) levels were correlated with DD levels. CONCLUSION: Plasma DD levels are increased in patients with IE who suffered from clinically significant systemic embolism. Further studies are needed to determine the predictive value of DD levels for clinically silent systemic embolism.


Assuntos
Embolia/sangue , Embolia/microbiologia , Endocardite Bacteriana/sangue , Endocardite Bacteriana/patologia , Produtos de Degradação da Fibrina e do Fibrinogênio/metabolismo , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC
8.
J Interv Card Electrophysiol ; 66(2): 363-372, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35731329

RESUMO

BACKGROUND: To investigate the effect of successful RFCA in patients with idiopathic outflow tract PVCs (OT-PVC) on left heart functions, neurohormonal activation, functional status, and heart failure-related quality of life (HFQoL), with an integrated approach. METHODS: Patients with frequent OT-PVCs, determined by 12-lead surface ECG who underwent radiofrequency catheter ablation (RFCA) with an acute success, were prospectivelly enrolled. Left heart functions were evaluated with the use of transthoracic echocardiography, neurohormonal activation with N-terminal Pro-brain natriuretic peptide (BNP), functional class with New York Heart Association (NYHA) and 6-min walking distance (6MWD), and HFQoL with Minnesota Living with Heart Failure Questionnaire (MLHFQ), at baseline and at 6 months. RESULTS: A total of 108 patients were included in this study (43 ± 12 years old, 56% male). Majority of the OT-PVCs originated from aortic valve and right ventricle outflow tract (44% and 37%, respectively). Total RF time was 216 ± 87 s. Major complication rate was 0.9%. Left ventricle (LV) ejection fraction increased from 47 ± 8 to 53 ± 6% at 6 months (p < 0.001). Neurohormonal activation was suppressed significantly (104 ± 69 to 83 ± 42, p < 0.001). Functional class improved with %NYHA-I patients increasing from 54 to 89% (p < 0.001) and 6MWD from 293 ± 73 to 335 ± 59 m (p < 0.001). MLHFQ score improved from 32 ± 9 to 23 ± 5 p < 0.001. In multivariable analysis, LV end-systolic diameter (LVESD) and 6MWD were independent predictors of improvement in MLHFQ (for LVESD Uß: - 0.26, 95%CI [0.44-0.09], p < 0.004 and for 6MWD: 0.04, 95%CI [0.03-0.06], p < 0.001). CONCLUSIONS: RFCA of OT-PVCs is associated with improved well-being of patients, determined by left heart functions, neurohormonal activation, functional class, and HFQoL.


Assuntos
Ablação por Cateter , Insuficiência Cardíaca , Complexos Ventriculares Prematuros , Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Feminino , Resultado do Tratamento , Qualidade de Vida , Complexos Ventriculares Prematuros/cirurgia , Eletrocardiografia , Insuficiência Cardíaca/complicações
9.
Acta Cardiol ; 78(8): 901-909, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36942879

RESUMO

BACKGROUND: Contrast-induced acute kidney injury (CI-AKI) is a disorder that adversely affects the prognosis of STEMI. The study aimed to assess the predictive value of a new marker, logarithm of haemoglobin and albumin product (LHAP) on the risk of CI-AKI development after primary percutaneous coronary intervention (p-pci). METHOD: We retrospectively enrolled 3057 patients with ST-elevation acute myocardial infarction who were treated with p-PCI. The primary outcome was CI-AKI, defined as >25% or >0.5 mg/dl increase of baseline creatinine values during post-procedural 48 h. RESULTS: First, a baseline model was produced to determine the predictors of CI-AKI, then haemoglobin, albumin and LHAP were included in the base model and the performances of all models were compared. The predictive accuracy (Likelihood ratio χ2 and R2) and discrimination (ROC-AUC) of the model including LHAP were significantly higher than that of models including both albumin and Hgb. LHAP best cut-off value for the development of CI-AKI was 9.26 (sensitivity 68% and specificity 66%). CONCLUSION: LHAP values were the most important predictor of CI-AKI, followed by creatinine value and Killip class. LHAP values are significantly associated with CI-AKI after p-PCI.


Assuntos
Injúria Renal Aguda , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Fatores de Risco , Estudos Retrospectivos , Medição de Risco , Intervenção Coronária Percutânea/efeitos adversos , Meios de Contraste/efeitos adversos , Creatinina/efeitos adversos , Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Hemoglobinas , Albuminas/efeitos adversos
10.
Clin Exp Hypertens ; 34(3): 165-70, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22008026

RESUMO

OBJECTIVE: Epicardial fat tissue reflects visceral adiposity and is a suggested cardiometabolic risk factor. Patients with abdominal obesity have an increased prevalence of the non-dipper blood pressure (BP) pattern, but it is unclear whether the same is true of patients with increased epicardial fat thickness (EFT). The association between EFT and circadian BP changes in patients with recently diagnosed essential hypertension was examined. METHODS: Sixty hypertensive patients underwent echocardiography, treadmill stress testing, and 24 hours of ambulatory BP monitoring. Epicardial fat thickness and left ventricular mass (LVM) index were measured by using transthoracic echocardiography. The patients were categorized into two groups according to their BP pattern (group 1, non-dippers; group 2, dippers). RESULTS: The mean EFT and LVM of patients in group 1 (n = 24) (EFT, 7.6 ± 2.1 mm; LVM, 130 ± 31.2 g/m(2)) were significantly greater than those of group 2 (n = 36) (EFT, 5.5 ± 1.2 mm, P = .0001; LVM, 107 ± 23.7 g/m(2), P = .002). The average systolic BP over 24 hours (BP(s) 24) and average diastolic BP over 24 hours (BP(d) 24) of group 1 (BP(s) 24, 151.1 ± 17.6 mm Hg; BP(d) 24, 94.1 ± 16.5 mm Hg) were significantly higher than those of group 2 (BP(s) 24, 136.7 ± 11.9 mm Hg, P = .0001; BP(d) 24, 84.6 ± 10.6 mm Hg; P = .008). Multivariate backward logistic regression analysis demonstrated that the non-dipper BP pattern was associated with EFT (standardized ß coefficient = 0.87, P = .005) and LVM (standardized ß coefficient = 0.43, P = .016). An EFT ≥ 7 mm was associated with the non-dipper BP pattern with 44% sensitivity and 94% specificity (receiver operating characteristic area under curve of 0.72, 95% CI [0.59-0.83], P = .0007). CONCLUSIONS: Epicardial fat thickness was above average in newly diagnosed, untreated hypertensive patients with non-dipper BP pattern. The echocardiographic measurement of EFT may be used to indicate increased risk of hypertension-related adverse cardiovascular events.


Assuntos
Hipertensão/patologia , Hipertensão/fisiopatologia , Gordura Intra-Abdominal/patologia , Pericárdio/patologia , Adulto , Pressão Sanguínea/fisiologia , Monitorização Ambulatorial da Pressão Arterial , Ritmo Circadiano/fisiologia , Ecocardiografia , Feminino , Humanos , Hipertensão/diagnóstico por imagem , Gordura Intra-Abdominal/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Pericárdio/diagnóstico por imagem , Fatores de Risco
11.
J Electrocardiol ; 45(2): 123-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22018835

RESUMO

BACKGROUND: Atrial electromechanical delay (EMD) parameters predict the development of atrial fibrillation. We investigated the effect of telmisartan treatment on atrial EMD parameters in patients with newly diagnosed essential hypertension. METHODS: Thirty-six patients with essential hypertension were treated with telmisartan (80 mg/day) for 6 months. Baseline electrocardiographic P-wave measurements and echocardiographic atrial EMD parameters were compared with the 6-month follow-up. RESULTS: Pmax and Pd were significantly decreased (108.4 ± 6.1 vs 93.9 ± 6.2 milliseconds, 33.4 ± 8.6 vs 19.5 ± 7.0 milliseconds, respectively, P = .0001 for each) after 6-month telmisartan therapy. The atrial EMD parameters were decreased from baseline (mitral EMD, 68.9 ± 4.9 vs 53.8 ± 4.9 milliseconds; septum EMD, 51.6 ± 7.1 vs 42.6 ± 7. milliseconds1; tricuspid EMD, 48 ± 6.9 vs 39 ± 6.9 milliseconds; interatrial EMD, 20.9 ± 5.5 vs 14.8 ± 5.7 milliseconds; P = .0001 for each parameter). The reduction of interatrial EMD was correlated with the reduction in systolic BP nighttime and the increase in mitral E wave velocity/mitral A wave velocity ratio. CONCLUSION: Telmisartan decreased the atrial EMD parameters in patients with newly diagnosed essential hypertension.


Assuntos
Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Fibrilação Atrial/prevenção & controle , Fibrilação Atrial/fisiopatologia , Benzimidazóis/uso terapêutico , Benzoatos/uso terapêutico , Sistema de Condução Cardíaco/fisiopatologia , Hipertensão/tratamento farmacológico , Adulto , Idoso , Fibrilação Atrial/diagnóstico por imagem , Ecocardiografia , Eletrocardiografia , Feminino , Humanos , Hipertensão/diagnóstico por imagem , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Estatísticas não Paramétricas , Telmisartan , Resultado do Tratamento
12.
Turk Kardiyol Dern Ars ; 40(8): 699-705, 2012 Dec.
Artigo em Turco | MEDLINE | ID: mdl-23518884

RESUMO

OBJECTIVES: Heart failure (HF) is a major public health problem responsible for high morbidity and mortality rates. Thus, the importance of survival predictors in directing the treatment of HF is gradually increasing. In some recently published studies, plasma homocysteine has been presented as a newly recognized risk factor for development of HF. In the present study, we investigated the value of serum homocysteine levels in predicting the survival of patients with HF. STUDY DESIGN: Seventy HF patients (44 males, 26 females; mean age 60±12; range 28 to 83 years) with left ventricle ejection fractions <35% were included in our study. Clinical, echocardiographic, and biochemical parameters were measured at baseline, and all patients were followed. Cardiac death was established as the end point of the study. RESULTS: At the end of the 12 month follow-up period, 14 patients (20%) had died. Serum homocysteine levels were significantly higher in the deceased patients compared to the patients who survived (20.8±5.8 vs. 16.9±5.1 µmol/l, p=0.029). A serum homocysteine level of >17.45 µmol/l predicted death at the end of the first year with 71.4% specificity and 67.9% sensitivity (ROC area under curve: 0.855, CI 95% 0.792-0.965, p<0.001). Multivariate Cox regression analysis showed that the serum homocysteine level was the only parameter predicting survival. CONCLUSION: Serum homocysteine level may be an important predictor of mid-term mortality in patients with HF.


Assuntos
Insuficiência Cardíaca Sistólica/diagnóstico , Insuficiência Cardíaca Sistólica/mortalidade , Homocisteína/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Curva ROC , Sensibilidade e Especificidade , Taxa de Sobrevida
13.
Future Cardiol ; 18(5): 377-384, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35297272

RESUMO

Background: The authors investigated the relationship between weight loss after sleeve gastrectomy and change in atrial electromechanical delay values. Methods: A total of 41 patients were included. The primary end point was any effect of total weight loss on atrial electromechanical delay parameters. Results: The mean loss of body weight was 25.50 ± 11.07 kg. There was a significant correlation between mean body weight change and change in interatrial and left intra-atrial electromechanical delays (Pearson's correlation coefficient: 0.575 and 0.871, respectively; p < 0.001). Only change in body weight was significantly related to change in interatrial electromechanical delay (regression coefficient: 0.707; p < 0.01). Conclusion: In this study, a significant relationship was found between amount of body weight loss and decrease in atrial electromechanical values.


Obesity is associated with heart rhythm disturbances. Synchrony between the electrical and mechanical activities of the heart is adversely affected in people with obesity. In this study, the authors aimed to show the effect of amount of weight loss after weight loss surgery on the coupling properties of electrical and mechanical activities of heart chambers called atria. The authors included 41 participants. Heart ultrasound was done before and after weight loss surgery. Statistical analyses were performed to show the effect of total body weight loss on the heart's electrical and mechanical atrial functions. Significant weight loss was observed in participants during short-term follow-up after surgery and was found to be related to the electrical and mechanical functions of the atria. In the authors' study, weight loss achieved in the short term after weight loss surgery improved the electrical and mechanical coupling of the atria. This may translate into decreased rhythm disturbance risk in these patients.


Assuntos
Fibrilação Atrial , Cirurgia Bariátrica , Fibrilação Atrial/etiologia , Átrios do Coração , Humanos , Obesidade/complicações , Obesidade/cirurgia , Redução de Peso
14.
Pacing Clin Electrophysiol ; 34(11): 1468-74, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21745227

RESUMO

BACKGROUND: Coronary artery ectasia (CAE) is associated with increased sympathetic activity, plasma levels of inflammatory markers, and oxidative stress. These factors can also cause arrhythmias such as atrial fibrillation. Atrial conduction abnormalities in patients with CAE have not been investigated in terms of atrial electromechanical delay obtained by tissue Doppler echocardiography. METHODS: Ninety patients with pure CAE (n = 30), nonobstructive coronary artery disease (NO-CAD) (n = 30), and angiographically normal coronary arteries "controls" (n = 30) were compared in terms of electrocardiographic P-wave measurements, echocardiographic atrial electromechanical coupling (AEC) parameters, and interatrial conduction delay. RESULTS: The mean left atrium diameter in the CAE group was similar to the NO-CAD group but significantly greater than the control group (3.62 ± 0.28 vs 3.46 ± 0.32 vs 3.41 ± 0.31 cm, P = 0.021). P maximum and P-wave dispersion were significantly increased in the CAE group compared to the NOCAD group and the control group (108.6 ± 6.6 vs 97.9 ± 6.6 vs 93.5 ± 6.2, P = 0.0001; 34.4 ± 7.6 vs 23.2 ± 7.8 vs 19.4 ± 7.7 ms, P < 0.0001). Mitral AEC, septal AEC, and tricuspid AEC were significantly higher in the CAE group than the NO-CAD group and the control group (68 ± 4.5 vs 57 ± 4.5 vs 53 ± 4.6 ms, P < 0.0001; 50.7 ± 7 vs 42.7 ± 7 vs 41.7 ± 7.2 ms, P = 0.0001; 47 ± 6.7 vs 39.1 ± 6.7 vs 38.1 ± 6.6 ms, P < 0.0001). Interatrial conduction delay was significantly increased in the CAE group compared to the NO-CAD group and the control group (21 ± 5.5 vs 17.8 ± 5.6 vs 15 ± 5.6 ms, P < 0.0001).The correlation analysis demonstrated that the interatrial conduction delay and P-wave dispersion (Pd) were positively correlated with number of ectatic segments (ESN) (r = 0.41, P = 0.024 vs r = 0.49, P = 0.006). Stepwise multiple linear regression analysis revealed that the ESN was the only independent determinants of interatrial conduction delay (P = 0.024). CONCLUSION: Pd and interatrial conduction delay are prolonged in patients with CAE compared to NO-CAD patients and the healthy controls.


Assuntos
Fibrilação Atrial/fisiopatologia , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/fisiopatologia , Sistema de Condução Cardíaco/diagnóstico por imagem , Sistema de Condução Cardíaco/fisiopatologia , Contração Miocárdica , Condução Nervosa , Fibrilação Atrial/diagnóstico , Dilatação Patológica/diagnóstico por imagem , Dilatação Patológica/fisiopatologia , Feminino , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Ultrassonografia
15.
Blood Press ; 20(5): 303-8, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21438844

RESUMO

OBJECTIVE: Hypertensive response at peak exercise and blunted blood pressure (BP) recovery, altered BP responses obtained from exercise stress testing, have been suggested as risk factors for future onset of hypertension in previous studies. Epicardial fat, a new cardiometabolic risk factor, has been linked to hypertension in some recent studies. In this study, we tested the primary hypothesis suggesting that the epicardial fat thickness (EFT) is related to altered BP responses to treadmill exercise testing. We also evaluated the sensitivity and specificity of the EFT as a predictor of hypertensive response to peak exercise. METHODS: Normotensive subjects underwent to treadmill stress testing and transthoracic echocardiography. Hypertensive response to peak treadmill exercise testing was defined as ≥ 210/105 mmHg and ≥ 190/105 mmHg at peak exercise in males and females, respectively. BP recovery index (BPRI) was defined as the ratio of the BP at the 3rd minute of the recovery phase to BP at peak exercise. EFT was measured by echocardiography. Thirty-two subjects with hypertensive response to peak exercise constituted Group 1 and 48 subjects with normal response constituted Group 2. RESULTS: The mean EFT of subjects in Group 1 was significantly higher (8.2 ± 1.1 mm vs 5.1 ± 1.5 mm; p = 0.0001) than subjects in Group 2. In correlation analysis performed in Group 1, EFT was found to be significantly correlated with BPRI (r = 0.51, p < 0.003). An EFT of ≥ 6.5 mm predicted the hypertensive response to peak exercise test with 68.8% sensitivity and 87.5% specificity (receiving operator characteristic area under curve: 0.879, 95% CI 0.793-0.965, p < 0.001). Patients with EFT ≥ 6.5 mm showed a significantly increased BPRI (0.89 ± 0.07 vs 0.74 ± 0.09, p < 0.0001) and peak systolic BP (198.4 ± 15.3 mmHg vs 169.4 ± 19.8 mmHg, p < 0.0001). There were significant differences in metabolic equivalents, maximum heart rate, homeostatic model assessment of insulin resistance, high-density lipoprotein-cholesterol, waist circumference and age values between two patients groups dichotomized according to the cut-off value of EFT. BPRI was the only independent variable related to EFT in the multivariate analysis (odds ratio = 1.4, 95% CI 2.75-7.16, p = 0.001). CONCLUSIONS: EFT was found to be related to altered BP responses to exercise stress testing. The echocardiographic measurement of EFT may serve as a useful non-invasive indicator of heightened risk of future hypertension.


Assuntos
Pressão Sanguínea , Ecocardiografia/métodos , Hipertensão , Gordura Intra-Abdominal/patologia , Pericárdio/fisiopatologia , Adulto , Determinação da Pressão Arterial , Estudos de Casos e Controles , Teste de Esforço , Feminino , Frequência Cardíaca , Humanos , Hipertensão/sangue , Hipertensão/diagnóstico , Hipertensão/fisiopatologia , Resistência à Insulina , Lipoproteínas HDL/sangue , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Fatores de Risco , Sensibilidade e Especificidade , Turquia
16.
Echocardiography ; 28(8): 853-8, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21827549

RESUMO

BACKGROUND: Carotid intima-media thickness (CIMT) is a potential indicator of subclinical atherosclerosis in patients with metabolic syndrome (MetS). Epicardial fat thickness (EFT) is suggested as a new cardiometabolic risk factor. We investigated the association between EFT and CIMT in patients with MetS. METHODS: Forty patients with MetS were compared with 40 age- and sex-matched subjects without MetS in terms of echocardiographic EFT, CIMT, anthropometric measurements, and metabolic profile in this cross-sectional study. RESULTS: The waist circumference, total and LDL-cholesterol, fasting glucose, triglycerides, systolics and diastolic blood pressure levels, hs-CRP, and homeostasis model assessment index for insulin resistance (HOMA-IR) were significantly increased in patients with MetS. The EFT and CIMT were also increased significantly in patients with MetS compared to controls (7.2 ± 2 mm vs. 5.7 ± 1.9 mm; P = 0.001, 0.74 ± 0.1 mm vs. 0.59 ± 0.1 mm; P < 0.01, respectively). Echocardiographic EFT was the only independent predictor of CIMT in the multivariate analysis (standardized ß coefficient = 0.74, P < 0.001). CONCLUSION: EFT is associated with increased CIMT in patients with MetS.


Assuntos
Tecido Adiposo/diagnóstico por imagem , Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media Carotídea , Ecocardiografia , Síndrome Metabólica/diagnóstico por imagem , Pericárdio/diagnóstico por imagem , Aterosclerose/diagnóstico , Pressão Sanguínea , Índice de Massa Corporal , Teste de Esforço , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
17.
Arch Gynecol Obstet ; 283(5): 1045-51, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20443014

RESUMO

AIM: To investigate the effects of Angeliq on hormonal, metabolic, biochemical and cardiovascular profile, carotid intima-media thickness (CIMT) and vertigo/dizziness symptoms in postmenopausal women. METHODS: Angeliq is a drug used for hormone replacement therapy that composed of drospirenone 2 mg and estradiol 1 mg. Thirty-two postmenopausal women were recruited for the study. All women were evaluated using personal interview, medical examination and carotid artery ultrasound. They were questioned specifically about vertigo/dizziness experienced. Participants were randomly submitted to oral daily treatment with Angeliq. The duration of the study was 6 months and the participants were studied in basal condition and after 6 months of the therapy. RESULTS: Follicle-stimulating hormone was significantly higher and estradiol was significantly lower in before therapy (BT) than in after therapy (AT) (p < 0.001). No differences in fasting glucose, CRP and WBC values, and lipid-lipoprotein profile were detected between the groups. The systolic and diastolic blood pressures and heart rate were also significantly higher in BT than in AT (p < 0.05). A significant (p < 0.001) difference in CIMT (0.51 ± 0.04 vs. 0.49 ± 0.03 mm) was found between BT and AT. Seven of 32 patients (22%) had vertigo/dizziness symptoms before treatment. After 6 months, none of the patients showed complaints of vertigo/dizziness. CONCLUSIONS: Oral daily treatment with Angeliq reduces CIMT and climacteric complaints including vertigo/dizziness in postmenopausal women. They may relate to anti-androgenic and anti-mineralocorticoid effects of Angeliq, respectively.


Assuntos
Androstenos/uso terapêutico , Artérias Carótidas/efeitos dos fármacos , Tontura/tratamento farmacológico , Estradiol/uso terapêutico , Terapia de Reposição de Estrogênios , Vertigem/tratamento farmacológico , Androstenos/farmacologia , Combinação de Medicamentos , Estradiol/farmacologia , Feminino , Humanos , Pessoa de Meia-Idade , Túnica Íntima/efeitos dos fármacos
18.
Heart Surg Forum ; 14(5): E326-7, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21997658

RESUMO

Congenitally corrected transposition of the great arteries, which is characterized by atrioventricular and ventriculoarterial discordance, is a rare congenital heart disease. Most of the cases are diagnosed in childhood, owing to associated cardiac anomalies, such as ventricular septal defect, pulmonary stenosis or pulmonary atresia, and Ebstein-like malformation of the tricuspid valve. We present a patient with congenitally corrected transposition of the great arteries who underwent surgical replacement of the tricuspid valve with a bioprosthesis and reconstruction of the left ventricular outflow tract with bovine conduit.


Assuntos
Implante de Prótese de Valva Cardíaca/métodos , Transposição dos Grandes Vasos/cirurgia , Insuficiência da Valva Tricúspide/cirurgia , Valva Tricúspide/cirurgia , Feminino , Comunicação Interventricular/cirurgia , Humanos , Cuidados Pré-Operatórios , Valva Tricúspide/diagnóstico por imagem , Valva Tricúspide/patologia , Ultrassonografia , Adulto Jovem
19.
Turk Kardiyol Dern Ars ; 39(5): 396-402, 2011 Jul.
Artigo em Turco | MEDLINE | ID: mdl-21743263

RESUMO

OBJECTIVES: Several studies have shown that psychosocial risk factors such as stress and depression make substantial contribution to the pathogenesis of coronary artery disease. This study aimed to investigate acute stress factors prior to acute myocardial infarction (AMI), and stress, depression, and anxiety levels during the subacute period in AMI patients aged ≤ 40 years, in comparison with AMI patients aged >40 years. STUDY DESIGN: The study included 200 first-time AMI patients aged ≤ 40 years (n=100; mean age 35 ± 4 years) and >40 years (n=100; mean age 54 ± 9 years). The DASS 21 scale (Depression Anxiety Stress Scales) was administered via face-to-face interviews in the early recovery period of AMI. The patients were also questioned whether they had experienced acute stress factors such as severe emotional or physical stressful events within two hours before the onset of chest pain. In addition, coronary angiography results were assessed based on the two age groups. RESULTS: Comparison of the two age groups showed significantly higher frequencies of family history of CAD and smoking in the younger group, and significantly higher frequencies of hypertension, diabetes mellitus, and dyslipidemia in the older group (p<0.05). History of acute stress factors was significantly more common (52% vs. 20%, p<0.01) and stress, depression, and anxiety scores of the DASS 21 scale were all significantly higher in the younger group (p<0.01). On coronary angiography, younger patients predominantly had normal coronary arteries and single-vessel disease, whereas multi-vessel disease was more prevalent in the older age group (p<0.01). CONCLUSION: Triggers of acute stress and psychosocial risk factors may contribute to the occurrence of AMI in individuals younger than 40 years.


Assuntos
Doença da Artéria Coronariana/psicologia , Depressão , Estresse Psicológico , Adulto , Fatores Etários , Angiografia Coronária , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/patologia , Progressão da Doença , Feminino , Humanos , Masculino , Escala de Ansiedade Manifesta , Pessoa de Meia-Idade , Fatores de Risco , Turquia
20.
Cardiology ; 115(4): 307-10, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20395682

RESUMO

Narrowing of the iliac artery is a common presentation of systemic atherosclerosis. With the recent development of invasive techniques, angioplasty and stenting offer excellent results for fixing limb ischemia of aorto-iliac arteries. However, despite novel interventional approaches and constantly increasing experience, complications such as distal embolization, stent migration, acute or subacute iliac artery occlusion, dissection, and perforations are still challenging. Early restenosis and/or reocclusion of peripheral artery stents is uncommon, but the risk of delayed or late thrombotic occlusions of iliac artery stents is unclear. Although with questionable impact, hypercoagulable state or patient noncompliance may contribute to the pathogenesis of stent thrombosis. We describe a patient with terminal renal cell carcinoma who developed late iliac artery stent thrombosis despite dual chronic antiplatelet therapy with aspirin and clopidogrel.


Assuntos
Aterosclerose/terapia , Carcinoma de Células Renais/complicações , Neoplasias Renais/complicações , Stents/efeitos adversos , Trombose/diagnóstico por imagem , Trombose/etiologia , Idoso , Angiografia , Aspirina/uso terapêutico , Aterosclerose/complicações , Clopidogrel , Humanos , Artéria Ilíaca/diagnóstico por imagem , Masculino , Inibidores da Agregação Plaquetária/uso terapêutico , Trombose/tratamento farmacológico , Ticlopidina/análogos & derivados , Ticlopidina/uso terapêutico
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