Doppler ultrasonographic and clinical features of middle aortic syndrome

作者：Yan, Lei; Li, Hai-Ying; Ye, Xiao-Jian; Xu, Rong-Quan; Chen, Xiao-Yu^*

来源：Journal of Clinical Ultrasound, 2019, 47(1): 22-26.

DOI：10.1002/jcu.22634

• Doppler ultrasound
• middle aortic syndrome
• tardus-parvus waveform

Objectives To discuss Doppler ultrasonographic and clinical features of middle aortic syndrome (MAS). Materials and methods Doppler ultrasonographic images and clinical dates of 11 patients with MAS confirmed by angiography were retrospectively analyzed from January 2004 to September 2016. Results The median age of 11 patients was 10 years (1-39 years). Ten patients presented with hypertension, only 2 cases presented with symptomatic intermittent claudication, and 1 case presented with abdominal pain. The ultrasonographic features of 11 patients with MAS included: (a) Gray-scale image showed significant segmental narrowing of the aorta in 9 cases. (b) Color Doppler demonstrated aliasing in the suspicious narrowed vessels of all cases. (c) On Spectral Doppler image, peak systolic velocity in the location of aorta coarctation was significantly elevated (range, 2.3 similar to 4.8 m/s). When infrarenal aorta was involved, a tardus-parvus waveform was only seen in the distal aorta. When suprarenal or inter-renal aorta was involved, a tardus-parvus pattern was seen in the distal aorta as well as renal artery. Conclusions Significant segmental narrowing and a tardus-parvus waveform are the important ultrasonographic features in patients with MAS, the latter may be more reliable. Doppler ultrasound can be used as a simple screening method, especially for children and adolescents suspected of having a vascular cause of refractory hypertension.

• 出版日期2019-1
• 单位福建医科大学