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. 2016 Dec;56(11):27-37.
doi: 10.18565/cardio.2016.11.27-37.

[Effects of Amlodipine/Lisinopril Fixed-Dose Combination on Severity of Left Ventricular Hypertrophy and Parameters of Myocardial Stiffness in Patients With Hypertension]

[Article in Russian]
Affiliations

[Effects of Amlodipine/Lisinopril Fixed-Dose Combination on Severity of Left Ventricular Hypertrophy and Parameters of Myocardial Stiffness in Patients With Hypertension]

[Article in Russian]
O D Ostroumova et al. Kardiologiia. 2016 Dec.

Abstract

Aim: To assess effects of 12 weeks treatment with the amlodipine/lisinopril fixed-dose combination (ALFDC) on the left ventricular (LV) mass index (LVMI), parameters of LV and left atrial stiffness.

Methods: At phase 1 of the study we examined 44 healthy subjects (21 men, 23 women, mean age 51.5+/-1.0 years) and 60 untreated patients (31 men, 29 women, mean age 53.6+/-0.8 years) with stage II grade 1-2hypertension. Myocardial stiffness parameters, LVMI were calculated using data of transthoracic echocardiography. 2-D speckle tracking echocardiography was used for determination of LV myocardial global longitudinal peak strain (GLPS). All participants underwent ambulatory blood pressure (BP) monitoring, and office BP measurement. At phase 2 a subgroup of 30 untreated patients (16 men, 14 women; mean age 52.7+/-1.11years) received ALFDC in a start dose of 5 mg/10 mg titrated every 14 days to achieve BP<140/90 mm Hg. Therapy in selected doses was continued for 12 weeks thereafter.

Results: In hypertensive patients LV GLPS was significantly lower while LA stiffness index higher compared with controls (17.08+/-0.38 vs. 19.91+/-0.41%, p<0.001, and 0.20+/-0.01 vs. 0.16+/-0.01, p<0.01, respectively). There were no significant differences in the LA tissue Doppler derived strain, LV end-systolic elastance, LA expansion index between hypertensive and control groups. After ALFDC therapy BP was significantly (p<0.001) reduced: systolic (S)BP from 154.4+/-2.7 to 130.6+/-1.2, diastolic (D)BP from 96.5+/-1.3 to 83.0+/-0.5 mm Hg. After therapy LV GLPS, LA expansion index, LV diastolic elastance significantly increased (from 17.10+/-0.57 to 18.29+/-0.35%, p<0.01; from 1.47+/-0.08 to 1.68+/-0.08, p<0.001; from 9.25+/-0.99 [10-2] to 10.88+/-1.0 8 [10-2], p<0.05, respectively) while LVMI, LV end-diastolic stiffness, and LA stiffness index significantly (p<0.001) decreased (from 129.4+/-4.5 to 111.8+/-3.3 g/m2, from 0.16+/-0.01 to 0.12+/-0.01 mm Hg/ml, from 0.21+/-0.02 to 0.15+/-0.01, respectively). Change in the LA tissue Doppler derived strain correlated with the change in dynamics of nighttime SBP (r=-0.410, p<0.05). There was direct relationship between change in LV diastolic elastance and nighttime DBP (r=0.424; p<0.05); and an inverse correlation between changes in LV end-diastolic stiffness and dynamics of the daytime SBP and DBP (r=-0.404; p<0.05 and r=-0.364; p<0.05, respectively). Change of LVMI after ALFDC treatment correlated with dynamics of 24-hour, daytime SBP, and daytime pulse pressure (r=0.382, p<0.05, r=0.478, p<0.01, and r=0.364, p<0.05, respectively).

Conclusion: In untreated patients with stage II, 1-2 degree hypertension 12-week therapy with ALFDC allowed to achieve target BP levels, reduced severity of LV hypertrophy and improved stiffness parameters of the myocardium.

Keywords: amlodipine; antihypertensive drugs; antihypertensive therapy; fixed-dose combination; hypertension; left ventricular hypertrophy; lisinopril; myocardial stiffness; speckle tracking; strain.

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