Left Ventricular Hypertrophy Lvh
Mostrando 13-24 de 34 artigos, teses e dissertações.
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13. A hipertensão arterial refrataria : caracterização fenotipica, avalliação cardiovascular morfo-funcional e correlação com polimorfismos geneticos de sistema renina-angiotensina e da sintase endotelial do oxido nitrico / Refractory hypertension : phenotypic characterization, cardiovascular morpho-functional assesssment and correlation with the renin-angiotensin-aldosterene and endothelial nitric oxide synthase gene polymorphisms
Refractory hypertension (HAR) is defined, according to the Seventh Joint National Committee (JNC VII), when the systolic arterial pressure remains above 140 mmHg and the diastolic arterial pressure above 90 mmHg even when taking three or more classes of anti-hypertensive agents including full-dose of a diuretic and the other agents at sub maximum doses with
Publicado em: 2006
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14. AssociaÃÃo entre sÃndrome metabÃlica e hipertrofia cardÃaca em portadores de hipertensÃo arterial
AlteraÃÃes na funÃÃo cardÃaca podem ocorrer na hipertensÃo arterial, em associaÃÃo a outros fatores de risco cardiovascular, de origem metabÃlica, tais como dislipidemia, resistÃncia à insulina, diabetes mellitus, e obesidade abdominal. O agrupamento desses componentes constitui uma entidade clÃnica reconhecida como sÃndrome metabÃlica (SM). Pa
Publicado em: 2006
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15. The role of secondary hyperparathyroidism in left ventricular hypertrophy of patients under chronic hemodialysis
End-stage renal disease (ESRD) patients frequently develop structural cardiac abnormalities, particularly left ventricular hypertrophy (LVH). The mechanisms involved in these processes are not completely understood. In the present study, we evaluated a possible association between parathyroid hormone (PTH) levels and left ventricular mass (LVM) in patients w
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-09
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16. Imidazoline receptors in the heart: a novel target and a novel mechanism of action that involves atrial natriuretic peptides
Chronic stimulation of sympathetic nervous activity contributes to the development and maintenance of hypertension, leading to left ventricular hypertrophy (LVH), arrhythmias and cardiac death. Moxonidine, an imidazoline antihypertensive compound that preferentially activates imidazoline receptors in brainstem rostroventrolateral medulla, suppresses sympathe
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-08
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17. Detection of incipient left ventricular hypertrophy in mild to moderate arterial hypertension with normal electrocardiogram and echocardiogram: a new use for signal-averaged electrocardiography
OBJECTIVE: To assess signal-averaged electrocardiogram (SAECG) for diagnosing incipient left ventricular hypertrophy (LVH). METHODS: A study with 115 individuals was carried out. The individuals were divided as follows: GI - 38 healthy individuals; GII - 47 individuals with mild to moderate hypertension and normal findings on echocardiogram and ECG; and GIII
Arquivos Brasileiros de Cardiologia. Publicado em: 2003-07
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18. Estudo da modulaÃÃo autonÃmica em funÃÃo da variabilidade da freqÃÃncia cardÃaca em hipertensos com e sem hipertrofia ventricular esquerda concÃntrica
This is a study of autonomic modulation as a function of heart rate variability through the time and frequency domains using 24h-Holter signals in hypertensives with and without concentric left ventricular hypertrophy (LVH), correlating the latter with cardiac arrhythmias. The data from a sample of 108 mild, moderate or severe hypertensives were analysed. Th
Publicado em: 2003
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19. QRS Voltage-Duration Product in the Identification of Left Ventricular Hypertrophy in Spontaneously Hypertensive Rats
OBJECTIVE - Evaluation of the performance of the QRS voltage-duration product (VDP) for detection of left ventricular hypertrophy (LVH) in spontaneously hypertensive rats (SHR). METHODS - Orthogonal electrocardiograms (ECG) were recorded in male SHR at the age of 12 and 20 weeks, when systolic blood pressure (sBP) reached the average values of 165±3 mmHg an
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-08
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20. Left Ventricular Hypertrophy Evaluation in Obese Hypertensive Patients: Effect of Left Ventricular Mass Index Criteria
PURPOSE: To evaluate left ventricular mass (LVM) index in hypertensive and normotensive obese individuals. METHODS: Using M mode echocardiography, 544 essential hypertensive and 106 normotensive patients were evaluated, and LVM was indexed for body surface area (LVM/BSA) and for height² (LVM/h²). The 2 indexes were then compared in both populations, in sub
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-04
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21. Autonomic Modulation of the Heart in Systemic Arterial Hypertension
OBJECTIVE: To analyze the heart rate variability in patients with mild to moderate systemic arterial hypertension. METHODS: Thirty-two healthy (group I) and 70 systemic arterial hypertensive (group II) individuals, divided according to age (40 to 59 and 60 to 80 years old, respectively) and with a similar distribution by sex were studied. Thirty-one had left
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-02
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22. Excreção urinaria de proteinas em pacientes hipertensos e sua correlação com hipertrofia ventricular esquerda e monitoramento ambulatorial da pressão arterial
The urinary protein excretion profile (UPE) and its relationship with left ventricular hypertrophy (LVH) and 24-hour Ambulatory Monitoring Blood Pressure (AMBP) was evaluated in fifty-three adult hypertensives patients divided in Group I: 30 subjects under therapy and Group II: 24 newly diagnosed individuals without therapy. Urinary creatinine ratios of micr
Publicado em: 2001
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23. Ischemia and fibrosis: the risk mechanisms of hypertensive heart disease
Mechanisms underlying risk associated with hypertensive heart disease (HHD) and left ventricular hypertrophy (LVH) are discussed in this report and provide a rationale for understanding this very common and important cause of death from hypertension and its complications. Emphasized are impaired coronary hemodynamics, endothelial dysfunction, and ventricular
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-06
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24. Inibição da sintese de oxido nitrico em ratos wistar : efeitos sobre a morfologia e a função cardiacas
This thesis examines the effects of acute and chronic inhibition of nitric oxide (NO) biosynthesis on cardiac function and morphology in Wistar rats. The contribution of angiotensin 11 to the cardiac changes observed following chronic NO inhibition was evaluated by treating the animais with enalapril, an angiotension converting enzyme inhibitor. Chronic inhi
Publicado em: 1995