Gerhard's sign

Gerhardt's sign is the Gerhardt sound transformation. In patients with aortic aneurysm, the up and down movement of the laryngeal head can be seen when breathing is difficult. Also known as Gerhardt's throat sign. When carotid sinus thrombosis occurs, the vascular filling of the ipsilateral external jugular vein is poor. Also known as the Gerhardt jugular vein sign. When an aneurysm of the cerebral artery and the vertebral artery is heard, a vascular sound can be heard in the posterior head. Also known as Gerhardt's posterior vascular sign. Basic Information Specialist classification: Oncology examination classification: other examinations Applicable gender: whether men and women apply fasting: not fasting Tips: Actively cooperate with the doctor's work. Normal value Normal breathing, blood vessels in the external jugular vein are filled, and there is no vascular sound in the posterior head. Clinical significance Abnormal result Aneurysm, carotid sinus thrombosis, cerebral artery and vertebral artery aneurysm. People who need to be examined: people with the above symptoms. Precautions Taboo before the examination: poor rest, improper diet, excessive fatigue. Requirements for inspection: Actively cooperate with the doctor's work. Inspection process Observe the patient for the following symptoms: the upper and lower movement of the laryngeal head can be seen when the breathing is difficult; the vascular filling of the ipsilateral external jugular vein is poor; the vascular sound can be heard in the posterior head. Not suitable for the crowd Inappropriate crowd: no Adverse reactions and risks Nothing.

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