Blood flow velocity recovery at renal artery anastomotic site in 149 patients with suspected transplant renal artery stenosis following kidney transplantation
ZHANG Wei
WANG Rui
KONG Yanru
GONG Shu
ZHENG Yuanjun
WANG Yongmei
Abstract：Objective To summarize the characteristics of blood flow velocity recovery at the renal artery anastomot-ic site in patients with suspected transplant renal artery stenosis(TRAS)after kidney transplantation.Methods A total of 149 patients diagnosed with suspected TRAS by color Doppler ultrasound after kidney transplantation were re-examined with color Doppler ultrasound at 6 months postoperatively.The recovery of blood flow velocity at the renal artery anastomo-sis site was observed across different genders(male,female),age groups[young and middle-aged(15-45 years),middle-aged and elderly(46-75 years)],and treatment measures.A peak systolic blood flow velocity<150 cm/s at the anastomo-sis site was defined as normalized blood flow velocity.Results At 6 months postoperatively,128 out of 149 patients(85.9%)achieved normalized blood flow velocity at the renal artery anastomosis site.The normalization rate was signifi-cantly higher in female patients(92.6%)than in male patients(80.2%)(P<0.05).Among male patients,normalization rates were 76.0%in the young and middle-aged individuals versus 87.1%in the middle-aged and elderly individuals.Among female patients,the rates were 100.0%in the young and middle-aged individuals versus 88.0%in the middle-aged and elderly individuals,with the highest proportion observed in the young and middle-aged females(all P<0.05).Of the 17 patients who underwent interventional therapy,12(70.6%)achieved normalization.Among the 132 patients who did not receive interventional treatment intervention,the blood flow velocity at the renal artery anastomosis of 116 patients re-turned to normal,accounting for 87.9%,and there was no significant difference between these two groups(P>0.05).Conclusions Patients with suspected TRAS after kidney transplantation showed favorable recovery of blood flow velocity at the renal artery anastomosis site.Female patients,particularly young and middle-aged females,exhibited higher normal-ization rates compared to males.The recovery of blood flow velocity was not associated with whether interventional therapy was performed.
Keywords：kidney transplantationtransplant renal artery stenosisrenal artery anastomosisblood flow velocityinterventional therapy
Publication Date：2025-03-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 92-95 )