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ST Depression on EKG - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Excellent Posted in: Congenital Heart Disease
Answered by

General & Family Physician
Practicing since : 2005
Answered : 1720 Questions
Doctor :   Hi
User :   Do Depressed ST waves on an EKG always mean blockage?
Doctor :   the severity of depression of ST waves are more significant
Doctor :   and also the leads in which they are found matter the most
User :   I see ....and from the least to most severe causes what might they be
Doctor :   a depression of greater than 2mm is considered to be due to ishemia or blockage in blood flow
Doctor :   the most common cause of depression of ST waves is angina (reversible blockage of blood flow)
Doctor :   and vasospastic angina
Doctor :   a complete MI (myocardial infarction ) will cause a ST elevation
User :   can stress or anxiety cause these changes?
Doctor :   stress and anziety can precipitate a angina, and this in turn can cause ST depression
Doctor :   but alone without presence of CAD, the 2 conditions cannot cause such changes
User :   No presence of CAD...but Depressed ST waves in a female
Doctor :   some conditions like conduction anomalies, Ventricular hypertrophy, very high heart rate, and mitral valve prolapse could cause ST depression
User :   ok thank u
Doctor :   electrolyte abnormalities (low potassium ) is also a cause
Doctor :   you are most welcome
Doctor :   Is there anything else i can help you with ?
Doctor :   Are you there ?
Doctor :   it seems that you have moved out of the chat session
Doctor :   please login again if you have any medical query
Doctor :   bye for now
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