Clinical value of echocardiography in evaluation of cardiac function in hypertension patients complicated with atrial fibrillation

Abstract

Objective To discuss the clinical value of using echocardiography to evaluate cardiac function in hypertension patients complicated with atrial fibrillation. Methods 60 hypertension patients complicated with atrial fibrillation were chosen as the observation group, and meanwhile 30 healthy subjects were chosen as the control group. Conventional two dimensional ultrasound was used to observe left front diameter (LAD), left ventricular end diastolic diameter (LVEDD), left ventricular end systolic diameter (LVESD) and left ventricular ejection fraction (LVEF). And mitral valve flow spectrum was also used to detect A peak and integral E-VTI E peak, A-VTI, and E/A, including the E peak deceleration time (DT). Pulmonary vein blood flow spectrum was used to detect systolic velocity (S), integral S-D-VTI, VTI, D peak, integral record systolic flow velocity (peak) Ar, and calculate the S/D value. Results In the observation group, LAD, LVEDD, LVESD, LAVmax and LAVmin were (43.01±2.34)mm, (48.87±4.35)mm, (30.29±4.34)mm, (42.38±3.55)mL and (20.22±2.35)mL, which were significantly higher than those in the control group [(34.23±2.10)mm, (43.23±4.30)mm, (24.34±4.12)mm, (31.04±3.10)mL and (14.57±2.19)mL], the differences were statistically significant (t=17.34, 5.82, 6.34, 14.88 , 10.99, all P<0.05). In the observation group, the LVEF and TA-EF were (62.03±5.56)% and (58.66±5.45)%, which were significantly lower than those in the control group [(59.35±4.45)% and (52.34±4.68)%], the differences were statistically significant (t=2.30, 10.99, all P<0.05). In the observation group, the E peak, E-VTI and E/A were (91.22±12.10)cm/s, (15.17±3.31) and (2.38±0.55) respectively, which were significantly higher than those in the control group [(71.28±12.11)cm/s, (12.21±3.30) and (0.92±0.30), t=7.37, 4.04, 13.54, all P<0.05]. In the observation group, A peak, A-VTI and DT were (46.89±5.36)cm/s, (4.23±1.06) and (120.32±12.45), respectively, which were significantly lower than those in the control group [(79.44±6.12)cm/s, (7.85±1.15) and (234.37±13.49), t=25.89, 14.84 , 39.84, all P<0.05]. In the observation group, D peak and D-VTI were (53.80±5.76)cm/s and (14.20±1.56) respectively, which were significantly higher than those in the control group [(44.54±3.58)cm/s and (11.15±1.55), t=8.64, 6.34, all P<0.05]. In the observation group, Speak, S-VTI, S/D and Ar were (41.21±4.04)cm/s, (11.87±5.37), (0.78±0.09) and (21.34±3.05) respectively, which were significantly lower than those in the control group [(53.26±4.15)cm/s, (16.28±5.33), (1.29±0.13) and (38.57±3.89), t=12.12, 3.94, 21.75, 23.00, all P<0.05]. Conclusion Echocardiography can reflect the cardiac function in hypertension patients with atrial fibrillation. And assessing myocardial remodeling and atrial room to store the damage situation, pipeline and booster pump function all has important clinical significance for clinical treatment and prognosis assessment. Key words: Echocardiography; Atrial fibrillation; Heart function