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Doctor insights on: Reading Cardiac Rhythm Strips

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Rhythm (Definition)

Rhythm "any regular recurring motion, symmetry may be generally defined as a movement marked by the regulated succession of strong and weak elements, or of opposite or different conditions, this general meaning of regular recurrence or pattern in time may be applied to a wide variety of cyclical natural phenomena having a periodicity or frequency of anything microseconds ...Read more


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Results of a 24-hour holter test: 9 VPC's, 381 APC's, 3 nonsustained atrial tachycardia 4-9 beats each, at 100-102 beats/min. Is this normal?

Results of a 24-hour holter test: 9 VPC's, 381 APC's,  3 nonsustained atrial tachycardia 4-9 beats each, at 100-102 beats/min. Is this normal?

Sounds: like a bit too many APC''s The reason for this , in my opinion, should be determined..(EG Cardiac ECHO) Hope this helps! BTW nothing "dangerous" but needs attention! Dr Z ...Read more

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Is this normal qt interval 335 and qtc 435 and heart rate 104? Ecg showed sinus tachycardia,

Is this normal qt interval 335 and qtc 435 and heart rate 104? Ecg showed sinus tachycardia,

HR slightly fast : A hr of 104 at rest (sinus tach) is slightly higher than the normal range of hr's between 60-100 at rest. That said, there could be plenty of reasons that this coud happen (like anxiety, dehydration, caffeine, pain, etc). Also anemia, hyperthyroidism , breathing or pulmonary problems could result in physiologically appropriate faster hr's. Inappropriate sinus tach considered if no cause seen. ...Read more

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Ecg , cardiac echo, heart enzyme , chest ct, cardiac angio ct, all ok.Still resting heart pulse 53-62.Increase when move.Exclude cardiac issue?

Ecg , cardiac echo, heart enzyme , chest ct, cardiac angio ct, all ok.Still resting heart pulse 53-62.Increase when move.Exclude cardiac issue?

Normal : Low heart rates w/out symptoms can be nl in healthy active individuals. The fact that ur hr increases w/ movement is helpful and points towards normalcy. ...Read more

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At the er for chest pain hospital monitor says couplet pvcs amd sv rhythm. What does sv rhythm mean? and are couplet pvcs dangerous?

At the er for chest pain hospital monitor says couplet pvcs amd sv rhythm. What does sv rhythm mean? and are couplet pvcs dangerous?

Not necessarily: SV="supraventricular rhythm" which is normal. PVCs are "extra beats" that sometimes lead to the feeling of a thump or irregular heart beat. By themselves, extra PVCs or couplets of PVCs are not dangerous. Some people get them when they drink caffeine or smoke cigarettes. They aren't an indicator of a heart attack, but if they happen during a heart attack, they can be a sign of impending problem ...Read more

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Sinus Rhythm with RBBB with LAFB withBifascicular Block,left axis deviation. HR 59 BP normal,little dizzy?

Sinus Rhythm with RBBB with LAFB withBifascicular Block,left axis deviation. HR 59 BP normal,little dizzy?

Dizzy: You have some evidence for heart electrical blockage on your EKG. This make at higher risk for heart block. Would expect pauses or slower rate if problem. Is dizziness spinning or do you feel you might black out? First symptom vertigo second more concerning. ...Read more

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My Holter Monitor showed 1596 Bradycardia events (under 50 bpm) in 48 hours and 2356 pauses between 2.02-2.5 seconds. Lowest Heart rate was 27 .

My Holter Monitor showed 1596 Bradycardia  events (under 50 bpm) in 48 hours and 2356 pauses between 2.02-2.5 seconds. Lowest Heart rate was 27 .

Talk to cardiology: I am assuming that you have symptomatic bradycardia, and that was the reason you had a Holter study done. Now, I don't know how long your HR stayed at 27, but even 40 is too low. This isn't something that can wait, call your doctor and develop an action plan today. If after hours ask to speak to the on call doc for that office. ...Read more

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On ECG results rightward axis boderline ECG nornal sunius rhythm?

On ECG results rightward axis boderline ECG nornal sunius rhythm?

Possible hemiblock: An abnormal right axis plus minimally prolonged qrs duration defines what is termed a left posterior hemiblock (block of the posteroinferior fascicle of the left branch of the bundle of his). An abnormal right axis can also occur in conditions with elevated right heart pressure and resultant right ventricular enlargement. Normal sinus rhythm means no rhythm disturbance. ...Read more

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Ekg say flat t waves in v4v5v6.Check av block of higher degree. Absolute arrhythmia, atrial flutter.Inferior myocardial infarction, probably old, normal?

Ekg say flat t waves in v4v5v6.Check av block of higher degree. Absolute arrhythmia, atrial flutter.Inferior myocardial infarction, probably old, normal?

It is hard to : Say based on your description, but it sounds abnormal of course, you should see if there is a clinical correlation. Review it with your doctor and compare it with old ekgs. This will help determine the next best step. ...Read more

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Holter- 24 run superventricular events 20 beats 88bpm 3 beats 99 BPM 5 beats 86bmp. Longest rate 128 BPM 0:01:48. Echo, ecg, angio normal. Concerned?

Holter- 24 run superventricular events 20 beats 88bpm 3 beats 99 BPM 5 beats 86bmp. Longest rate 128 BPM 0:01:48. Echo, ecg, angio normal. Concerned?

No need to worry....: Findings appear benign. You do not have any structural heart disease or coronary artery disease and have benign electrical findings based upon the information provided. However discuss with your cardiologist. ...Read more

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Does an holter montior detect cardiac arrythmias?

Does an holter montior detect cardiac arrythmias?

Holter monitor: Yes, but even better are monitors that you can wear for 2 - 4 weeks as they may pick up arrhythmias that may not show in a 24hr holter. ...Read more

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Sinus Rhythm Low voltage in precordial leads. -Old anterior infarct. ABNORMAL ekg?

Sinus Rhythm Low voltage in precordial leads. -Old anterior infarct. ABNORMAL ekg?

Yes, by tracing only: It is an abnormal ekg by reading of the tracing but what is most important is the ekg in relation to a good history and clinical exam. Questions to ask: do you have a past history of heart disease, high BP, diabetes, smoking? Do you have chest pain/jaw pain/pain down L arm? Is your BP high on exam? Any of these findings along with the above ekg is a MAJOR concern. Please talk with your doctor!! ...Read more

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My heart structurally fine on echo, MRA, ECG, MRI, holter monitors. Is it unlikely my frequent PVCs will turn into Ventricular tachycardia/death?

My heart structurally fine on echo, MRA, ECG, MRI, holter monitors. Is it unlikely my frequent PVCs will turn into Ventricular tachycardia/death?

Unlikely: With a normal heart based on all the studies you have had, PVCs are usually benign and not like to precipitate ventricular tachycardia. The caveat is that you are on diltiazem as well as amitriptyline both of which can affect the heart rhythm. Thus you should continue to have your EKG monitor. All the best to you! ...Read more

Dr. Mark Fisher
91 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more


Dr. Thomas Namey
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more