vertigo,episodic recurrent meaning in English

《英文msh词典》Vertigo,Episodic Recurrent
[入口词] Vertigo,Episodic Recurrent
[主题词] Vestibular Neuronitis
[英文释义] Idiopathic inflammation of the vestibular nerve,characterized clinically by the acute or subacute onset of vertigo,nausea,and imbalance. The cochlear nerve is typically spared and hearing loss and tinnitus do not usually occur. Symptoms usually resolve over a period of days to weeks. (Adams et al.,Principles of Neurology,6th ed,p304)