Observation of renal hemodynamics in patients with chronic arsenism and renal injury by color Doppler ultrasound / 中华地方病学杂志

ABSTRACT

Objective:To analyze the diagnosis of renal injury caused by chronic arsenism by color Doppler ultrasound and the observation of renal hemodynamics.Methods:From January 2018 to April 2019, 74 patients with occupational chronic arsenism admitted to Binzhou People's Hospital were selected and divided into two groups according to whether the patients were complicated with renal injury or not, 26 patients in renal injury group and 48 patients in non-renal injury group. The renal function indexes [serum creatinine (SCr), blood urea nitrogen (BUN), urine and blood β2-microglobulin (β2-MG)] were measured and the renal hemodynamics [peak blood flow velocity during systole (Vmax), minimum blood flow velocity during diastole (Vmin), resistance index (RI)] of the two groups were analyzed by color Doppler ultrasound, and the correlation between renal function indexes and renal hemodynamics was analyzed.Results:The levels of SCr, BUN, urine β2-MG and blood β2-MG in renal injury group were significantly higher than those in non-renal injury group [(136.28 ± 21.05) vs (108.42 ± 26.49) μmol/L, (8.03 ± 1.04) vs (5.36 ± 0.97) mmol/L, (157.48 ± 25.63) vs (127.42 ± 18.95) μg/L, (3.97 ± 1.12) vs (2.35 ± 0.84) mg/L, t = 4.625, 11.022, 5.740, 7.028, P < 0.05]. The Vmax and Vmin of the main renal artery and interlobular artery in renal injury group were significantly lower than those in non-renal injury group [cm/s (50.34 ± 13.42) vs (75.32 ± 16.52), (18.13 ± 5.21) vs (29.83 ± 7.05), (12.31 ± 3.82) vs (17.22 ± 5.07), (4.08 ± 1.15) vs (6.03 ± 1.93), t = 6.833, 7.084, 4.657, 4.775, P < 0.05], and the RI of the main renal artery and interlobular artery in renal injury group was significantly higher than that in non-renal injury group [(0.71 ± 0.06) vs (0.62 ± 0.08), (0.68 ± 0.10) vs (0.56 ± 0.08), t = 5.017, 5.634, P <0.05]. Vmax and Vmin of the main renal artery and interlobular artery were negatively correlated with SCr, BUN, urine β2-MG and blood β2-MG ( P < 0.05). RI of the main renal artery and interlobular artery were positively correlated with SCr, BUN, urine β2-MG and blood β2-MG ( P < 0.05). Conclusions:Color Doppler ultrasound can effectively reflect the status of renal injury in chronic arsenism patients. The renal blood flow perfusion in renal injury patients is decreased, and the blood flow resistance is increased, which is closely related to the degree of renal injury and deserves clinical attention.