Keywords:
Kidney, Vascular, Echocardiography, Ultrasound-Colour Doppler, Ultrasound-Spectral Doppler, Imaging sequences, Diagnostic procedure, Haemodynamics / Flow dynamics, Arteriosclerosis, Hypertension
Authors:
I. Cabac-Pogorevici; Chisinau/MD
DOI:
10.1594/ecr2018/C-0024
Results
The mean RRI was 0,685 (p<0,01),
mean ambulatory systolic blood pressure (SBP) was 135,6 mmHg,
mean ambulatory diastolic blood pressure (DBP) was 77 mmHg,
(mean daytime SBP 141,96 mmHg,
DBP 82,07 mmHg, mean nighttime SBP 128,67 mmHg,
DBP 71,92 mmHg).
The mean pulse pressure (PP) was 59,1 mmHg.
RRI was negatively related to ambulatory DBP (r = -0.339,
p < 0.05),
heart rate (r=-0.326,
p<0.01) while it was positively associated with ambulatory SBP (r = 0.659,
p < 0.05),
ambulatory PP (r = 0.366,
p < 0.01),
age (r = 0.253,
p< 0.01),
left ventricular mass (LVM) (r = 0.459,
p < 0.001) and relative wall thickness (RWT) (r=0.493 p<0.01),
remaining statistically significant even after adjustment for various confounding factors in stepwise multiple linear regression analyses.
Higher RRI values were associated with concentric hypertrophy (RWT>0.42) vs.
eccentric hypertrophy (RWT≤0.42) of the left ventricle (p<0,05).
When multiple regression analysis was used,
SBP (p < 0.01) and LVM (p <0.05) remained significant predictors of RRI.