Brachial arterial pulse deficit, pain, paresthesia, arm fatigue and pallor of the affected limb are hallmark of acute subclavian arterial occlusion.

• 受损前臂动脉脉搏消失、疼痛、肢体苍白、肢体麻木及肢体无力是急性锁骨动脉阻塞之临床特徵。