Heart Disease Community
MI
About This Community:

A community of people with Heart Disease to guide and support your heart-health journey. Ask a question, join a conversation, share experiences: symptoms, nutrition, and management.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
Blank Blank

MI

is transmural mi is called q wave mi definitely?and partial occlusion is called by non q wave?.....st depression is marker of what?.....thanks for answering(if possible)
Related Discussions
3 Comments Post a Comment
Blank
367994 tn?1304957193
QUOTE: .....st depression is marker of what?

>>>>The ST segment can become either depressed or elevated for ventrical receiving an insufficient supply of blood and/ or the heart cells are difficient of oxygen (hypoxia). ,

QUOTE: is transmural mi is called q wave mi definitely?
is transmural mi is called q wave mi definitely?

>>>>>The presence of the Q wave in the absence of ST and T wave abnormality generally indicates prior or healed infarction. Q wave MI,  which is diagnosed by the presence of pathological Q waves and is also called transmural infarction.

The classic changes of dead heart cells (Q waves), injury (ST elevation), and occluded vessels (partial blockage) causes T wave inversion and may all be seen during acute infarction.
"In recovery, the ST segment is the earliest change that normalizes, then the T wave; the Q wave usually persists. Therefore, the age of the infarction can be roughly estimated from the appearance of the ST segment and T wave. The presence of the Q wave in the absence of ST and T wave abnormality generally indicates prior or healed infarction."
Why there can be mixed EKG signals during an acute myocardial infarction, because  the central area of dead cells is generally surrounded by an area of injury, which in turn is surrounded by an area of heart cells with insufficient oxygen so various stages of myocardial damage can coexist. The distinction between cells that lack good blood flow and dead cells is a determination whether the conditions are reversible.

Hope this helps give you a perspective, and EKG abnormal signals can be due to many non-cardiac conditions, so an EKG requires supporting other clinical evidence, symptoms, etc.  Take care and thanks for the quesiton.
Blank
Post a Comment
To
Top Heart Disease Answerers
159619 tn?1318997813
Blank
erijon
Salt Lake City, UT
11548417 tn?1440481484
Blank
Ger57
Netherlands
Avatar f tn
Blank
achillea
CA
Avatar m tn
Blank
Occupant
IL
Avatar m tn
Blank
tacolino
Ireland
144586 tn?1284669764
Blank
caregiver222
Blank
BloodPressure Tracker
Monitor Your Blood Pressure
Start Tracking Now
Blank
HeartRhythm Tracker
Track your Heart Condition
Start Tracking Now
Recent Activity
4522800 tn?1459192030
Blank
VICourageous HEY! Thanks for the Birthda... Comment
17 hrs ago
Avatar n tn
Blank
Sammie2525 commented on Cardiac Syndrome X &a...
17 hrs ago
587083 tn?1327123862
Blank
zouzi commented on Please be aware of th...
18 hrs ago
Heart Disease Community Resources
Top Heart Disease Answerers
159619 tn?1318997813
Blank
erijon
Salt Lake City, UT
11548417 tn?1440481484
Blank
Ger57
Netherlands
Avatar f tn
Blank
achillea
CA
Avatar m tn
Blank
Occupant
IL
Avatar m tn
Blank
tacolino
Ireland
144586 tn?1284669764
Blank
caregiver222