Background: Left Ventricular Hypertrophy (LVH) has been shown to be a risk factor as well as a consequence of cardiovascular diseases. The importance of an early LVH diagnosis in the community has been desmontrated by many case studies. Objectives: (1) Find out the prevalence of electrocardiographic LVH. (2) Determine the risk factors of electrocardiographic LVH. Subjects and method: 3561 people (1410 men) over 25 years old were chosen from 3 provinces/cities (Ha Noi, Thai Binh, and Nghe An). All participants underwent electrocardiogram, and the Romhilt-Estes score on standard 12-lead electrocardiogram to measure LVH. Diagnosis of LVH was made when Romhilt-Estes score >=4. Data was analyzed by Epi-Info software version 6.04 and SPSS version 13.0. Results: According to JNC 7, there were 744 people with hypertension (352 men), accounted for 21.2%. The rate of hypertension was 24.9% in men and 18.2% in women. This difference was statistically significant (p <0.001). Overall prevalence of electrocardiographic LVH was 6.71% (95% CI: 5.94 \u2013 7.58%). Prevalence was 9.00% among men (95% CI: 7.62 \u2013 10.61%) and 5.21% in women (95% CI: 4.35 \u2013 6.23%). Risk factors of electrocardiographic LVH included male, elderly, hypertension, and obesity. Conclusion: The high prevalence of LVH in the population showed the importance of detection and early treatment for LVH patients, especially in those, who had no clinical symptoms.
Left ventricular hypertrophy ; electrocardiogram

The number of people identified as having Hypertension continues to increase and most of them have left ventricular hypertrophy- an earliest complication and also being a risk factor of heart disease. In clinical practice in Cardiovascular Department- Hue Central Hospital, until now, diagnosis LVH depends on ECG so it misses many cases as having a real LVH. This is the first time, we use Echocardiography to diagnose LVH in patients with Hypertension by using LVMI. In 56 cases of hypertension we found a larger number of LVH by using LVMI than by ECG (41cases Vs 22cases- p<0,01). This is an useful method in diagnosis for LVH.
Hypertension ; Hypertrophy, Left Ventricular

A study on 97 male patients with the hypertension ages of 64,1 +/- 14 in hospital 171 during 1993-5/1997 has shown that the hypertension was most frequently occurred in age of 60 (81,24%). The cardiac complications and large arterial complications in hypertension were common (67,01%) the cardiac complications include the left ventricular thickness (45,36% 45 cases with the left ventricular thickness were diagnosed by laparoscopy in which 30 cases with the centric thickness, 12 cases with the incentric thickness. The sensitivity and specificity of the eletrocardiography was 21/45 and 48/52, respectively. The frequent of the left ventricular thickness increased as increased age and its progress depends on the hypertension. The relation of the disorder of lipid metabolism and artherosclerosis exacerbated the hypertension and the left-ventricular thickness. The laparoscopy is valuable method diagnosis of the left ventricular thickness.
Hypertension ; Hypertrophy, Left Ventricular

BACKGROUND AND OBJECTS: Mitral annulus velocity by Pulsed Wave Doppler has been used as method of evaluation of left ventricular diastolic function. However, it is unknown how this is altered in the patients with left ventricular hypertrophy (LVH). this study was aimed to compare a group of healthy subjects with a group of patients with LVH. METHODS: Subjects were 80 patients with LVH (left ventricular mass index125 g/m2) and 163 controls with normal left ventricular mass index (<125 g/m2). For measuring the mitral annulus velocities by doppler tissue imaging (=DTI), we used the 2.5 MHz probe (Sequoia, Accuson) in apical 4 chamber view with the sample volume at the septal portion of the mitral annulus. RESULTS: Mitral annular velocity in diastole is easily recorded by DTI in all subjects. in LVH group, mitral annulus E've#locity was significantly lower than controls (5.2+/-1.3 cm/sec vs 6.2+/-1.7 cm/sec, p(<0.001) and mitral annulus A' velocity was also significantly higher than controls (8.5+/-1.3 cm/sec vs 8.0+/-1.1 cm/sec, p<0.02). annular displacement measured by DTI-TVI (time velocity integral), also In LVH group, mitral annulus E'-TVI was significantly lower than controls (5.7+/-1.8 mm vs 6.8+/-2.2 mm, p<0.001). CONCLUSION: Mitral annulus velocity determined by DTI could be used as one of the parameters in evaluating diastolic function in patient with LVH.
Diastole ; Humans ; Hypertrophy, Left Ventricular*

No abstract available.
Cardiomyopathy, Hypertrophic* ; Hypertrophy, Left Ventricular*

Background: Echocardiography has provided the most valuable means in detecting Left Ventricular Hypertrophy (LVH), but electrocardiography (ECG) has a greater advantage due to its mobility, simplicity, and low cost. Objective: (1) To examine the sensitivity and specificity of electrocardiographic criteria for LVH and determinants. (2) To study the risk factors affected to sensitivity and specificity of electrocardiography. Subjects and method: ECG and echocardiography were performed in 374 adults. The Romhilt-Estes score was used to measure electrocardiographic LVH, whereas the Framingham criteria of the left ventricular mass index were used to detect LVH on echocardiography. Results: Using echocardiography as a gold standard, sensitivity of ECG was 35.8%, specificity was 90.3%. The overall probability of correct diagnosis was 82.6%. Older people and men had tended to increase the value of ECG in detecting LVH. Conclusion: The high specificity but low sensitivity suggested an adjusted ECG criterion for a better diagnosis of electrocardiographic LVH.
Left ventricular hypertrophy ; electrocardiography ; echocardiography

This study introduced the deep researches on the diagnosis of left ventricular hypertrophy by electrocardiogram (ECG) and cardiac ultrasound as well as treatment of the left ventricular hypertrophy due to hypertension including drug therapy and non drug therapy
Hypertrophy, Left Ventricular ; Cardiomegaly ; hypertension

35 patients with chronic renal failure in the last phase receiving the periodical hemodialysis were examined by echocardiogram Doppler has shown that 100% of patients had left ventricular hypertrophy in which single hypertrophy (25.7%), hypertrophy combined with the left ventricular dilatation (34.3%) and left ventricular hypertrophy and dilatation and left ventricular systolic functional insufficiency (40%) the left ventricular diastolic function was significantly reduced. It was not found that there was close correlation between morphological change, cardiac hemodynamy and other factors
Kidney Failure ; Hypertrophy, Left Ventricular

Authors evaluated the electrocardiographic criteria of Minnesota Code (III-1, III-2) for the diagnosis of left and right ventricular hypertrophy in 93 cases of healthy peoples, 74 cases of left ventricular hypertrophy and 4 cases of right ventricular hypertrophy and following results were obtained. 1. By left ventricular hypertropy criteria (III-1), there were 5.4% of false positive and 14.9% of false negative cases. 2. By right ventricular hypertrophy criteria III-2), there were 24.7% of false positive and 20.0% of false negative cases. 3. Electrocardiographic diagnosis of ventricular hypertrophy by Minnesota Code (III-1, III-2) were more reliable criteria than many other criteria of ventricular hypertrophy.
Diagnosis* ; Electrocardiography ; Hypertrophy* ; Hypertrophy, Left Ventricular ; Hypertrophy, Right Ventricular ; Minnesota*

For the evaluation of the left ventricular diastolic function in mild to moderate hypertensive patients without left ventricular hypertrophy, 15 hypertensive patients (group A) and 15 normotensive subjects (group B) were examined by 2-D guided M-mode echocardiography. Various systolic and diastolic indices were derived from computer-assissted analysis of differential curves of left ventricular dimension and posterior wall thickness. The systolic and diastolic function indices of each of the two groups were compared. The results were as follows : 1) There were no significant differences in ejection fraction, left ventricular peak ejection rate and posterior wall thickening rate between two groups. 2) There were no significant differences in % ventricular A wave, left ventricular peak filling rate and posterior wall peak relaxation rate between two groups. 3) One third filling rate was 2.07+/-0.41 EDD/sec in group A and which was significantly lower than 3.29+/-0.88 EDD/sec of group B. Above result suggests that computer-assisted analysis of differential curves of left ventricular dimension and posterior wall thickness could be helpful in the early detection of diastolic dysfunction, and that left ventricular diastolic dysfunction in its early filling period may develop in the mild to moderate hypertensive patients even before left ventricular hypertrophy develops.
Echocardiography ; Humans ; Hypertrophy, Left Ventricular* ; Relaxation