A cross-sectional discriptive, compare and control study on the 125 patients with the old cardiac infarction and 55 healthy people was carriout in the Army Central Hospital No108 from 3/1995 to 3/1998. The age and sex between 2 groups were the same. The results have shown that the EF% calculated as improved simpson and the interval from point E of the anterior leaf of mitral valve to the left side of the ventricular connection Septal eirs were 2 parameters with the sensitivity and specificity higher than other parameters of ultrasound. The patients with the old cardiac infarction had significantly reduced the left ventricular systolic function. This reduction was corelated with the cardiac infarction. The most reduced the left ventricular systolic function found in the group of the cardiac infarction in the both anterior and posterior septal.
Ventricular Function, Left ; Infarction

No abstract available.
Anemia* ; Echocardiography* ; Ventricular Function, Left*

Study on 2 subject groups: control group including 48 healthy persons and case group: 34 patients (20 male, 14 female) with septic shock, all of them treated at Bach Mai Hospital from January 2003 to November 2003, aged from 16 to 75 year old. Subjects in control group underwent clinical and Doppler ultrasound examinations, had medical records. In case group, patients underwent clinical and paraclinical examinations for diagnosis and treatment followed by regime of the department. Results: 15/34 septic shock patients have cured and discharged (44.1%), 19 patients died (55.9%). At the first stage of septic shock, cardiac output (CO) and cardiac index (CI) increased (CO=6.461.85L/min; CI=4.351.24L/min/m2) but ejection fraction decreased (EF=50.69.27%), with 13 patients had EF<50% (38.2%). Before treatment, the CO and EF of survival group were lower than the dead group. During treatment, end-diastolic left ventricular volume increased along with EF, and heart rate reduced gradually to normal in survival group. These changes weren’t observed in the dead group.
Shock ; Septic ; Ventricular Function ; Left

Study was performed in 64 patients with hypertension who were treated at Viet Tiep Hospital, Hai Phong city from 2001 to 2002. The control group consisted of 36 normal healthy persons. Results: in patients with hypertension, the LA, Dd, IVSd, LWPd, LVMl increased more highly than in the control group. However, the evaluated parameters of the left ventricular function such as EF%, FS%, T%, lVS, T% LWP, the distance of E-lVS and curve EF of the heart valve decreased more than the normal persons. Only 15.62% of patients with hypertension had the left ventricular function decreased (EF<55%). While 90.62% of those patients had left ventricular function disorders. Reduced elastic ability of left ventricular occurred in majority of patients with hypertension (93.75%). The type of “unnormal” disorder of diastolic function occurred in 2 patients (3.12%)
Hypertension ; Ventricular Function, Left ; Ultrasonics

Study 58 high pressure patients at Central Army Hospital 108 and 38 healthy and old people. The result was: QT gap is QTd87+-42ms, Qtcmax 485+-51, QT cd96+-33ms and QTc 443+-25ms longer comparing with 40+-13ms, 452+-45ms, 66+-10ms, 410+-27ms of normal people. QTd, QTcd, QTc in these patients initially incur hyperthropy of left vertricle, diostole and systole disorder which is taking longer than high pressure patients do not incur hyperthropy of left vertricle, diostole and systole disorder. Inverse relations between QTc and E/A index and direct proportion between QTd, Qtc and LVM, LVMI indices
Hypertension ; Ventricular Function, Left ; Patients

Study on 66 men with type 2 diabetic at Military Hospital 108 and 103 healthy persons (with similar age, BIM, HATTh, HATTr, frequence of heart). Results: In type 2 diabetic group, A-C distance front of bicuspid valve extend, slash volume significant reducing compared with control group. Left autrial size, intraventricular septum wall thickness, ventricular wall thickness, left ventricular mass index (LVMI) significant changing compared with control group. Non THA diabetic group include 3 patients ventricular hypertrophy (LVMI > 131 g/m2), in control group hasn’t any patients. In VT Ia diabetic group, VTIe/VTIa rate reduce, DT time lengthen significantly compare with control group
Diabetes Mellitus, Type 2 ; Ventricular Dysfunction, Left ; Ventricular Function, Left

Study on some ratios of Doppler echocardiography of 93 patients under 15 years old with a isolated ventricular septal defect, by comparision with control group showed that: 55% patients had pulmonary systolic hypertension, of these 23% severe pulmonary systolic hypertension. There was close correlation of pulmonary artery systolic pressure and: Diameter of defect, and the ratio of pulmonary to systemic flow (Qp/Qs). There was no correlation of pulmonary artery systolic pressure and: Pulmonary artery diameter; Peak gradient between right ventricular and pulmonary artery; Mean gradient between right ventricular and pulmonary artery.
Pulmonary Wedge Pressure ; Ventricular Function, Left

BACKGROUND: Left ventricular (LV) torsion plays an important role in both LV systolic and diastolic function. Notwithstanding the fact that speckle tracking imaging echocardiography (STI) is a validated method to measure LV torsion, few data regarding the clinical significance of LV torsional parameters using STI on exercise capacity during exercise echocardiography were reported. METHODS: Fifty four participants completed the supine bicycle cardiopulmonary exercise echocardiography under a symptom-limited protocol. LV torsion was defined as the net difference between LV peak apical rotation, and basal rotation divided by LV diastolic longitudinal length. LV basal, and apical short-axis rotations at each stage were analyzed by STI. RESULTS: LV torsion measurement was feasible in 43/54 (80%) at peak exercise. The LV torsions were increased during exercise, and even until the recovery. Peak twisting, and untwisting velocities were significantly increased during exercise, but were decreased at recovery. As expected, baseline torsion was positively correlated with LV ejection fraction and baseline apical peak untwisting velocity has correlation with E/E' (r=0.50, p<0.01 and r=0.30, p<0.05, respectively). Interestingly, apical peak twisting velocity at peak exercise was significantly correlated with maximal O2 consumption and VO2 interval change (r=0.50, p<0.01 and r=0.33, p<0.05, respectively). CONCLUSION: It was feasible to measure LV torsion by STI at every step during exercise echocardiography, although the feasibility was relatively low at peak exercise. LV torsional parameters during exercise showed significant relations with exercise capacity as well as LV systolic and diastolic functions.
Echocardiography ; Track and Field ; Ventricular Function, Left

Background: Atrial Septal Defect (ASD) is one of the most common congenital cardiac defects. Both surgical and catheter occlusion of the defect has been found effective and safe in eliminating interatrial shunting. However, knowledge of the response of the left side of the heart to ASD closure is incomplete. Objective: This study assessed the left side of the heart\u2019s response to ASD closure over a 6-month follow-up period. Subjects and method: 148 patients of ASD ostium secundum with an average age of 26.13 +/- 14.24 years (2-62 years) and the mean ASD size of 24.92 +/- 7.97 mm has been studied by echocardiography before and after atrial septal defect closure. Results: The right ventricular diameter and hemodynamics were improved after ASD closure (p<0.0001). The left ventricular end-diastolic diameter and volume increased significantly after ASD closure (p<0.0001). Conclusions: The left ventricular systolic function was unaffected by ASD closure. The right side of the heart\u2019s response to ASD closure over 6-month follow-up period decreased significantly (p<0.0001).
Atrial septal defect ; ASD ; left ventricular function

In clinical situation, left ventricular (LV) function especially systolic function is generally assessed by measuring the extent and velocity of fiber shortening i.e., ejection fraction (EF) and fractional shortening (FS). Ejection fraction is commonly measured by echocardiography, in which the volumes of chambers are measured during the cardiac cycle. Sometimes the evaluation of LV function in the patients with left ventricular hypertrophy (LVH) is problematic. Although their LV function is almost always normal or supernormal, the prognosis of patients with LVH is poorer than normal subjects. The possible reason is that conventional EF or FS measured at endocardial surface may not accurately reflect the contractile behavior of myocardial fiber across the wall. Therefore, many researchers have recommended to use the midwall instead of the endocardium when the ventricular function of LVH was assessed. In the present article, all that midwall will be reviewed.
Echocardiography* ; Endocardium ; Humans ; Hypertrophy, Left Ventricular ; Myocardium ; Prognosis ; Ventricular Function