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Doctor insights on: Heart Natural Pacemaker

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Dr. Jay Park
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Pacemaker (Definition)

A pacemaker is a device which sends electrical signals to the heart triggering heartbeats when needed. There are many ways to implant and configure a pacemaker; it may beat the top chambers (atria), lower chambers (ventricles) or both. Some systems stimulate both the left and right ventricles together. Pacemakers generally treat abnormally slow heart rhythms and certain ...Read more


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What are fixed rate pacemaker and demand type pacemaker?

What are fixed rate pacemaker and demand type pacemaker?

Pacemakers: Fixed rate pacemakers stimulate the heart to beat all the time at a specified rate. Demand pacemakers only pace the heart if the rate falls below a certain set rate or irregularity in heartbeat occurs. ...Read more

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What's the death rate for pacemaker battery replacements?

What's the death rate for pacemaker battery replacements?

Low: If there are no other medical conditions, the risk of dying from a pacemaker replacement is very low, below 1%. ...Read more

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Help please! is an irregular heart beat always atrial fibrillation?

Help please! is an irregular heart beat always atrial fibrillation?

Not always: An irregular heart beat can be due to several arrhythmias. The best way to make a diagnosis is to get an monitor while you are having the irregular rhythm. A holter or an event monitor would be needed. ...Read more

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How much rate atrial fibrillation with slow ventricular ?

How much rate atrial fibrillation with slow ventricular ?

Usually < 60-70: Most people, left untreated, have rates between 70 and 150. It's a bit unusual to fall below that without drugs or other treatment. ...Read more

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Is an implantable cardioverter defibrillator removed in heart bypass surgery?

Is an implantable cardioverter defibrillator removed in heart bypass surgery?

No: The defib. Device is implatnted in the inner chambers of the heart and bypass is on the out side of the heart where the coronary arteries lie.Unless theres another reason to remove the device ie an infection the device is left in. ...Read more

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Why does?An electrical shock delivered to the heart?Correct abnormal heart rhythms?

Why does?An electrical shock delivered to the heart?Correct abnormal heart rhythms?

Rebooting the system: Our heart works through electrical pathways. If these pathways get out of sync or mixed up then sometimes cardioversion or defibrillation a.K.A. "reboot of the system" can get the electricity back in sync. ...Read more

Dr. Rick Koch Dr. Koch
4 doctors agreed:
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What are heart pacemakers for?

Dr. Rick Koch Dr. Koch
4 doctors agreed:

Enusure that: Heart rate does not go below a certain rate by paving the right atrium or right ventricle or both (in general). ...Read more

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Can pacemaker fix all cases of atrial fibrillations?

Can pacemaker fix all cases of atrial fibrillations?

No: Atrial fibrillation is an irregular heartbeat of the upper chambers of the heart. Its greatest danger is the formation of bloodclots within the heart which can trravel up to the brain and cause a stroke. Patients with af are generally treated with anticoagulants or blood thinners like aspirin, warfarin (coumadin) or dabigatran (pradaxa) to prevent strokes and medication to control the heart rate. ...Read more

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If someone's heart stops from ventricular fibrillation, will a defibrillator restore heart rhythm or is it too late?

If someone's heart stops from ventricular fibrillation, will a defibrillator restore heart rhythm or is it too late?

ICD: Icds are implanted to monitor the electrical activity of very abnormal hearts to see if a life threatening rhythm occurs. If it detects one of these rhythms, it will charge its capacitor and fire a shock to defibrillate the heart back to stable rhythm. In appropriate patients these devices save lives. ...Read more

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What is eecp (called as natural heart bypass)?

What is eecp (called as natural heart bypass)?

An angina treatment: Enhanced external counterpulsation (eecp) is a procedure that forces more blood to flow into the coronary arteries (which supply blood to heart muscle). A person uses the eecp machine 1 hour, 5 days a week, for 7 weeks. The treatments are intended to cause long-term improvements in blood flow to the heart muscle, thus decreasing angina (chest pain) symptoms. Only certain patients qualify for eecp. ...Read more

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Would a pacemaker repair atrial fibrillation?

Would a pacemaker repair atrial fibrillation?

Not directly.: Pacemakers might be implanted as part of a care plan for af - but this only prevents slow pulses that might come as a result of medications for the af or after av-node ablation. Pacemakers themselves can not prevent or control af. ...Read more

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Are there advantages to a heart valve replacement over a heart transplant?

Are there advantages to a heart valve replacement over a heart transplant?

Yes: A heart valve replacement does not require a new heart from a deceased individual, and does not create the need for lifelong immunosuppressive drugs to prevent rejection of the heart. ...Read more

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Is it common to remove an implantable cardioverter defibrillator during heart bypass surgery?

Is it common to remove an implantable cardioverter defibrillator during heart bypass surgery?

No: It was put in for a reason so unless something has changed, it will ordinarily be left in place unless the battery is failing, in which case it would be replaced. ...Read more

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Timeframe between heart failure and defibrillation?

Timeframe between heart failure and defibrillation?

May not happen: Heart failure generally refers to dysfunction in the pumping action of the heart (various types exist). Defibrillation is basically an electric shock designed to "reset/restart" the conduction system of the heart (during an arrhythmia). Heart failure increases risk of arrhythmia, but doesn't guarantee it will happen. Live healthy, follow tx & doctor's recc's , and hopefully it won't happen. ...Read more

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What is a ventricular demand pacemaker?

What is a ventricular demand pacemaker?

Pacemaker function: It is a way for a pacemaker to only pace your heart when your heart rate is below a set rate (usually 60 beats per minute). ...Read more

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Is left ventricular assist device considered an artificial heart?

Yes: Lvads support the left ventricle which is one side of the heart, the left side, that pumps blood to the aorta. The right side pumps blood to the lungs. An artificial heart has both lvad and rvad. Both sides. ...Read more

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Can cardioversion correct an abnormal heart rate and rhythm?

Can cardioversion correct an abnormal heart rate and rhythm?

It can : Cardioversion can be used to correct an abnormal rhythm such as atrial fibrillation. Sometimes, however, the procedure does not correct the situation. In such cases, medications may be necessary. ...Read more

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Can a pacemaker suppress the naturally occurring heart rate and be used for treating bigeminy if extreme weakness is present?

It depends: You are actually asking a very sophisticated question here which requires a deal of nuance. There are a couple of ways the bigeminy can arise, and a pacemaker may make it considerably better or considerably worse depending on which of these two ways to beat arises. Discussion with a cardiac electrophysiologist is advised. ...Read more

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