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Doctor insights on: Ecg Changes For Heart Attack

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How does previous heart attack show on an ecg?

How does previous heart attack show on an ecg?

Q waves: Some heart attacks do not show and even ones that do, may only be temporary. That said, q waves, if of sufficient voltage and if they follow known patterns, are the way of diagnosing heart attack by ekg. (caution: not all q waves are indicative of heart attack!). ...Read more

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Dr. Adam Lewis
2 doctors shared insights

Electrocardiogram (Definition)

Electrocardiogram (ecg, ekg) is a print-out of the electrical forces detected by electrodes on the chest wall, as electricity travels through the heart with each heart beat. The electrodes are placed in different positions, and each position "sees" the electrical activity of the heart from its own vantage point. Abnormalities in signal detected at chest surface ...Read more


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Would an old heart attack show up on an ecg? If so which wave would show it?

Q wave: There are patterns in old heart attack waves on ekg. Often several specific leads will show the scar on particular, specific walls of the heart. Review this with your doctor. ...Read more

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Does normal ECG (83 bpm) indicates no heart attack in past 5-6 yrs for 50+ females ?

Does normal ECG (83 bpm) indicates no heart attack in past 5-6 yrs for 50+ females ?

It is likely that: a normal EKG excludes prior heart attack but not 100% definitive. Show your EKG to a qualified health care provider for further assessment. ...Read more

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How does a previous heart attack represent itself on an ecg? Which wave and the form of the wave?

How does a previous heart attack represent itself on an ecg? Which wave and the form of the wave?

Q wave: Many, but not all old heart attacks show up as a q wave which is an initial significant downward deflection but this can also be seen in some normal variants. Reading ecgs can be tricky and significant training is needed to read them well. ...Read more

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My ECG was abnormal with a 'probable anterospetal infract age indeterm' - Q >30ms, Tneg, V1-V3. Does this mean I had a heart attack?

My ECG was abnormal with a 'probable anterospetal infract age indeterm' - Q >30ms, Tneg, V1-V3. Does this mean I had a heart attack?

Very little : Unfortunately, the conventional ECG is older technology, invented more than 100 years ago. It is only accurate for rhythm disturbances and does not detect lack of blood supply to the heart at all! a new and much better technology based a systems engineering has emerged! it is called multifunction cardiogram! http://en.M.Wikipedia.Org/wiki/multifunction_cardiogram. ...Read more

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How good is an ECG combined with a 24h Holter in detecting a previous heart attack, both overt and silent?

How good is an ECG combined with a 24h Holter in detecting a previous heart attack, both overt and silent?

ECG : ECG would likely show an evidence of previous heart attack and Holter monitor would only show arrhythmias. If you want to be sure about heart disease you should either get a stress test or cardiac catheterization. But considering your age the probability is low. ...Read more

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I have a handheld ECG monitor. If i was having a heart attack would that show irregularities?

I have a handheld ECG monitor. If i was having a heart attack would that show irregularities?

Probably: Ecg monitors provide information as to rate, rhythm and pattern of our heart. When a person is having an acute "heart attack" , usually the pattern of the normal heart changes. The pattern may show elevations in areas that are not there in normal or non-ischemic hearts or irregular heart beats. If you think you are having a heart attack, immediately seek out medical attention or call 911. ...Read more

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I got my ECG results and my Q wave was abnormal. Does this mean that I had a heart attack?

I got my ECG results and my Q wave was abnormal. Does this mean that I had a heart attack?

It depends: It depends on the location and size of the q waves in relation to the other parts of the qrs complex. Ask your doctor to look at the ECG and let you know. ...Read more

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Dr. Creighton Wright
3,921 doctors shared insights

Heart Attack (Definition)

Heart attack is a life-threatening condition in which the blood vessels that supply the heart becomes occluded and thus the heart itself is not longer receiving any blood flow. Without this blood flow, the heart muscle dies and cannot pump blood to the ...Read more


Dr. Creighton Wright
1,139 doctors shared insights

Myocardial Infarction (Definition)

Myocardial infarction, or heart attack, is a condition where part of the heart muscle loses its blood supply due to calcification in and ...Read more