彩色多谱勒超声评价多发性肾动脉的年轻患者的肾动脉狭窄。
Evaluation of renal artery stenosis using color Doppler sonography in young patients with multiple renal arteries.
机构信息
Department of Nephrology, Peking University First Hospital, Beijing 100034, China.
出版信息
Chin Med J (Engl). 2011 Jun;124(12):1824-8.
BACKGROUND
Some individuals have multiple renal arteries. Severe stenosis in one of the arteries may cause refractory hypertension. The detection of stenosis within one of the multiple renal arteries usually required invasive procedures, such as computed tomographic angiography (CTA) and magnetic resonance angiography (MRA). This study reported the application of color Doppler sonography (CDS) in the detection of severe stenosis in one of the multiple arteries.
METHODS
Patients with multiple renal arteries and one of the arteries with severe stenosis were retrospectively studied. Peak systolic velocities (PSV) of renal arteries and the intrarenal CDS patterns were collected and compared. The diagnosis was confirmed by digital subtraction angiography (DSA).
RESULTS
Four children with multiple renal arteries and one of the arteries with stenosis were investigated. They were admitted due to refractory hypertension. CDS screening identified two renal arteries in one kidney of each patient with one of the two renal arteries having stenosis > 70%. The PSV of the stenosed arteries were much higher, and the intrarenal CDS patterns supplied by the stenosed arteries changed into T-P patterns.
CONCLUSION
Non-invasive CDS technology may be a useful method to identify severe stenosis in one of multiple renal arteries in young patients.
背景
有些人有多个肾动脉。其中一条动脉的严重狭窄可能导致难治性高血压。通常需要侵入性程序（如计算机断层血管造影术 [CTA] 和磁共振血管造影术 [MRA]）来检测多条肾动脉中的狭窄。本研究报告了彩色多普勒超声（CDS）在检测多条动脉中一条严重狭窄中的应用。
方法
对患有多发性肾动脉和其中一条动脉严重狭窄的患者进行回顾性研究。收集并比较肾动脉的收缩期峰值速度（PSV）和肾内 CDS 模式。通过数字减影血管造影术（DSA）确诊。
结果
研究了 4 名患有多发性肾动脉和其中一条动脉狭窄的儿童。他们因难治性高血压入院。CDS 筛查发现每位患者的一侧肾脏中有两条肾动脉，其中一条肾动脉狭窄>70%。狭窄动脉的 PSV 明显更高，狭窄动脉供应的肾内 CDS 模式变为 T-P 模式。
结论
非侵入性 CDS 技术可能是识别年轻患者多条肾动脉中严重狭窄的有用方法。
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