Venous hum is accentuated by deep inspiration in most patients and may be obliterated by the Valsalva maneuver or by pressure on the internal jugular vein.
Venous hum is accentuated by deep inspiration in most patients and may be obliterated by the Valsalva maneuver or by pressure on the internal jugular vein.
多数病人在深吸气时静脉嗡鸣音明显，用瓦尔萨尔瓦手法或按压颈内静脉即或消除。