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目的:探讨肾移植术后半年内移植肾动脉血流峰值速度加快与移植肾动脉狭窄相关性。方法:回顾性分析我院102例肾移植患者术后半年内移植肾多普勒超声图像检查结果及临床资料,比较患者收缩期血流峰值速度(PSV)、血压及移植肾功能。结果:102例患者中,有27例患者出现较高的PSV,其中4例患者呈现持续性PSV升高,经行移植肾动脉造影检查而确诊为移植肾动脉狭窄(TRAS),行经皮肾动脉支架植入术(PTRAS)后,PSV降至正常,血压恢复正常,随访6~13个月未见狭窄复发。结论:在肾移植术后半年内,移植肾动脉PSV加快未必是肾动脉狭窄,可先随访观察,若超声提示PSV呈持续性升高,尤其是伴顽固性高血压,则需行移植肾动脉造影明确是否是TRAS。PTRAS是TRAS安全有效的治疗方法。
OBJECTIVE: To investigate the correlation between the accelerated renal artery peak velocity and renal artery stenosis within 6 months after renal transplantation. Methods: The results of renal Doppler echocardiography and clinical data of 102 renal transplant recipients within 6 months after operation were retrospectively analyzed. The peak systolic velocity (PSV), blood pressure and renal function were compared. RESULTS: Of the 102 patients, 27 had higher PSV, 4 of whom showed persistent PSV elevation and were diagnosed as transplanted renal artery stenosis (TRAS) by transplanted renal artery angiography. Percutaneous renal artery Stent implantation (PTRAS), PSV dropped to normal, blood pressure returned to normal, no follow-up of 6 to 13 months recurrence of stenosis. CONCLUSIONS: Within six months after renal transplantation, the acceleration of PSV in renal transplant recipients may not be the result of renal artery stenosis. They can be followed up first. If the PSV is persistently elevated by ultrasound, especially with refractory hypertension, transplant renal artery Contrast is clear whether TRAS. PTRAS is TRAS safe and effective treatment.