Zenger Symptom

The Zenger sign or the Zenger test, or the hydrosymptom complex, is a clinical reference symptom that reflects, on the one hand, the appearance of a reflex with a vegetative reaction (abduction of the arm and increased breathing) in response to the introduction of a test stimulus into the ulnar sinus (local increase in pressure), and on the other hand - absence of pain syndrome (absence of local soreness). The presence of the Zenzer sign or lead when checking for CRPS and the absence of pain during an injection indicates pathology of the brachial plexus, and the presence of pain indicates the presence of radicular syndrome or radiculopathy. To carry out the test, several conditions must be met: When inserting the needle, it must be ensured that only liquid sprays out of the needle. Carefully lower the needle without delay. When performing the test, there should not be any painful sensations during it. That is, before inserting the needle, there should be no unpleasant sensations. It is important to understand that Zengel, Overton-Griffith, de Quervain, Jaurek, Hadek-Schaffard, compression, Pirie, Kocher also belong to the category of phenomena that can be classified in diagnosis.