Abstract:Afemalepatientof 6 4yearoldwasadmittedtothehospitalduetoparoxysmaldizzinessfor 10yearswithprogressionfor 3years .Thepatienthassufferedfromparoxysmaldizzinesssincel992 ,whichpersistedforminutes ,evenhours .Thenshewasdiagnosedas“essentialhypertension”duetothebloodpressuremeasuredasl6 0 / 10 0mmHg .Herconditiondidn′tgetrelievedafterroutineantihypertensivetherapy,evengotmoresevereinl997.Herbloodpressurewasusuallyelevatedsuddenlyashighas 170 -2 2 0 / 70 - 90mmHg ,anddecreasedtothenormalrangewit…