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Doctor insights on: Is A Small Q Wave On An Ecg Significant

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Is a small Q wave on an ECG significant?

Is a small Q wave on an ECG significant?

Probably not: By definition, a "significant" q wave must be > than 40 msec in duration or > than 25-33% (depends on the reference) of the r wave height. Even by that criteria, many electrocardigraphically significant q waves are seen in people with normal cardiac echo's and mri's. ...Read more

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Dr. Melissa Gowans
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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My dad had a MI 3mths later on ECG the report said inferolateral st sagging and 'surprisingly no q wave' what does this mean?

My dad had a MI 3mths later on ECG the report said inferolateral st sagging and  'surprisingly no q wave' what does this mean?

Pathological q waves: Are changes commonly seen on the EKG after a heart attack. They reflect an area of damage or scarring. Usually they are a permanent change on the EKG, But sometimes they disappear. That's why the report said " surprisingly no q waves". ...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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What does a Q wave mean on a ekg?

What does a Q wave mean on a ekg?

EKG : The ekg has waves with amplitude and direction. A q wave reflects a lack of electrical force in a certain direction. This lack of force has some correlation when a change in pattern with a loss of muscle as is seen in heart damage like a heart attack. ...Read more

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What does a "q-wave" mean on an ekg?

What does a "q-wave" mean on an ekg?

It depends: Sometimes it can just be a normal variant, sometimes reflects an old heart attack. Your physician can tell you which of the two it is. ...Read more

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Cardiology.Wat relarevance dose a Q Wave have on lead 3 of an EKG.Where dose intrascapula fit is this part of another condition? and affects the heart

Cardiology.Wat relarevance dose a Q Wave have on lead 3 of an EKG.Where dose intrascapula fit is this part of another condition? and affects the heart

None.: It is not uncommon for young adults to have Q waves. These are normal and are the first activation of the bottom of the heart, between the main pumping chambers, called the interventricular septum. After that, it splits into Left and Right sides but that first Q wave is picked up as the initial beat of the ventricles before spreading out into the main heart muscles that make the main Signal. ...Read more

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What could 'small q waves' on a resting ECG represent?

Q waves: Q waves can be abnormal if more than 1/4 the total electrical deflection and at least .04sec. In duration. Smaller q waves than this are within normal parameters. ...Read more

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I have chest pain more on swallowing, 12 lead ecg. Small Q waves in inferior leads plus v5 and 6, what could be wrong?

I have chest pain more on swallowing, 12 lead ecg. Small Q waves in inferior leads  plus v5 and 6, what could be wrong?

Chest pain: It appears you are already under care of a physician having had an ekg done. If you have q waves, it may indicate old myocardial infarction. But we have to take into account your symptoms, your risk factors before deciding on further testing like a nuclear stress test, or a cardiac cath. Your primary care physician or cardiologist would be able to guide you ...Read more

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What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

Probably Normal: Without viewing your EKG and knowing more about the characteristics of the R-wave (QRS duration, etc) it is difficult to say for certain but most likely represents a nonspecific intraventricular conduction delay. In an otherwise healthy asymptomatic 20 year old without structural heart disease it is an interesting incidental finding of no clinical significance. ...Read more