Grande N R, dos Santos J M
Abel Salazar Institute for Biomedical Sciences, Oporto University, Portugal.
Surg Radiol Anat. 1999;21(1):23-8. doi: 10.1007/BF01635048.
The authors studied the circulatory alterations observed in the upper limbs of patients showing muscular atrophy due to flaccid paralysis of traumatic origin. Ten patients who had suffered avulsion of the nerve roots from C4 to D1 that occurred 9 to 216 months previously, presented a significant degree of muscular atrophy of the affected upper limb, despite physiotherapy. We performed echo-doppler examinations of the patients to measure the lumen of the subclavian, axillary, brachial, radial and ulnar arteries and also of the veins of both upper limbs. The measurements from both upper limbs in each patient were statistically compared. The data revealed a significant reduction of the width of the lumen of the arteries and veins and a reduced arterial blood flow in the affected limb in comparison with the normal one. The greater echogenicity and the abnormal Doppler waves of the affected vessels suggest that they presented an increased thickness and a hardened wall. The authors propose that this finding may be related to an intimal hyperplasia brought about by muscular atrophy or by the observed blood flow reduction.
作者研究了因创伤性弛缓性麻痹导致肌肉萎缩的患者上肢所观察到的循环改变。10例患者在9至216个月前发生了从C4至D1神经根撕脱，尽管进行了物理治疗，但受影响的上肢仍出现了明显程度的肌肉萎缩。我们对患者进行了超声多普勒检查，以测量双侧上肢锁骨下动脉、腋动脉、肱动脉、桡动脉和尺动脉以及静脉的管腔。对每位患者双侧上肢的测量结果进行了统计学比较。数据显示，与正常肢体相比，患侧肢体的动脉和静脉管腔宽度显著减小，动脉血流减少。患侧血管更高的回声性和异常的多普勒波表明它们的管壁厚度增加且变硬。作者提出，这一发现可能与肌肉萎缩或观察到的血流减少所导致的内膜增生有关。
