Abstract

Background: Renal color Doppler ultrasound is used to obtain rapid information on renovascular parameters of special importance when a vascular disease is suspected and its relation with arterial hypertension. Objective: To determine renal renovascular parameters in variable degrees of stenosis patients with arterial hypertension by means of renal Doppler ultrasound. Method: An observational, descriptive, prospective, cross-sectional, cross-sectional investigation of a series of cases was carried out by means of B Mode and Doppler in patients with arterial hypertension. The following parameters were determined: renal intraparenchymal resistance index, renal systolic velocity, renal/aorta index, spectral wave morphology and presence or absence of early systolic peak. The data corresponding to the sampling were recorded for each kidney. Main results: Morphological and functional alterations of the renal artery were identified in patients with arterial hypertension, showing that age, time of arterial hypertension greater than 10 years and BMI>30 (obese) correlate with an elevated resistance index. Resistance index values greater than 0.70 correlate with functional alterations of the renal arteries demonstrating in the patients studied. Conclusions: The study showed that renal Doppler ultrasound is an important tool for monitoring and decision making in the treatment of patients with arterial hypertension, allowing the identification of morphological and functional alterations of the renal artery in these patients

Keywords

arterial hypertension, renal Doppler ultrasound, intraparenchymal resistance index