Anterior spinal artery syndrome refers to the paralysis of the bilateral upper extremities, bladder dysfunction and the sensory deficit of pain and temperature below the level of injury. A 64 year-old female got a cardiac arrest event after stent insertion into the coronary artery. After CPR, she underwent the motor deficit (Z-T) of the bilateral upper extremities without any sensory deficit; proprioception, vibration and pain. The brain MRI showed no abnormality, but high signal intensity was detected in C3-C7 level by T2 sagittal plane and at the anterior horn area of gray matter by axial view of spine MRI. The ventilator has been applied after CPR. By the fluoroscopy, the movement of the diaphragm was decreased, and the nerve conduction study of both phrenic nerves showed no responses.