Natural pacemaker of the heart

Common Questions and Answers about Natural pacemaker of the heart


1867019 tn?1353471140 Also, there are 4 chambers in a heart, two on top know as the atria, two on the bottom, known as the ventricles. On the top of the heart is the heart's natural pacemaker, called the SA (Sino Atrial Node). This node is influenced by the body's parasympathetic nervous system, which can drastically slow the heart rate. It's also influenced by the sympathetic nervous system, which can speed up your heart rate. Between the top of your heart and the bottom is the AV (Atrioventricular Node).
Avatar n tn Until the day God has set aside for you. A pacemaker will ensure your heart works to the correct rhythm and rate and you will live to your natural age of death. It is a fix. So dont start worrying about that because you will get stressed and become ill again. I wish you a good long and healthy life.
Avatar n tn However, having an improperly working pacemaker could mean that your heart would struggle to maintain a natural rhythm AFTER the premature beats occur. Once the pacer is replaced, you are likely to still experience the occasional PVC or string of PVC's, but they will not be of concern as long as the pace maker is in proper working condition. I would hope that your doctor could obtain a new pacemaker from a different company.
Avatar m tn The device fires an electrical pulse to either make the heart or assist the heart to contract, just as the heart's natural electrical system does. Depending on how "defective" that electrical system is, it's possible the device could stop working, yet his heart could continue to function. I think there's a lot of unknowns in providing you with a more accurate answer.
Avatar f tn If he's set for a minimum rate of 60, and he measured a rate of 45 and regular, the device seems to be at fault or something else in the environment effecting the device. In either case, it bears investigation starting with the integrity of the device first.
Avatar n tn after the completion of around 12 months i developed bradycardia resulting in the installation of a pace maker in end july 2008. Ever since the fixing of the pacemaker my pulse rates are now regulairized between 70 and 130 . since installation of the pacemaker I am continously suffering from a heavy head 24 X 7 with a nausea feeling and discomfort in the head and shoulder region. I am also feeling very week and lethargic. if any one can provide an answer to my problem i will be obliged.
Avatar n tn The rate response setting on the pacemaker controls how the pacemaker responds to activity (how fast, how soon, the slope of the response, etc.). This setting may be adjusted in a variety of different ways to optimize the response for you. I would discuss the problem with your doctor. He/she may want to have you do an exercise test to help set some of the parameters.
Avatar n tn So his rate is completely made by the pacemaker (maybe natural pulses are scheduled by the heart, but the pacemaker arrives always first because it is trying to increase the heart rate)
Avatar f tn Yes, that's exactly what it amounts to. A friend of mine had it done, but I had the sneaky suspicion - and still do - that they screwed up his ablation and now the pacemaker has to provide the heartbeat completely and not only when needed.
3110611 tn?1368488635 Chances are the heart rate of 83 is your own natural heart rate and is not your pacer working; that would kick in when the heart rates are real low. Keep us posted.
Avatar m tn The superior vena cava brings the blood back from the upper parts of the body to the heart. When you move a lot, the blood moves quickly to these parts but since the SVC is partly obstructed, the blood doesn’t return as quickly to the heart. It accumulates in the veins of the affected parts, making them swollen, red and painful. By rest, the engorged veins will gradually return to their original form and the symptoms relieved. The Coumadin doesn’t remove the clot.
Avatar m tn will pacemaker be able to still PUSH the heart to work no matter how low the natural heart rate is?! - Risk of heart attack ( all my family members, grandfather, father, uncle, cousin, have died BEFORE 50 years of age due to heart attack without prior signs or symptoms) will be lower with pacemaker or...... thank u.
Avatar f tn I am on my 3rd pacemaker after an ablation and pacemaker insertion 12 years ago. Since my new one on the 5th of May was ok with the exception of lacking energy to walk far. Prior to my last insertion i was walking 4k's a day. Since then no way. i went back to my Doctor 4 weeks ago and told him. He said he would make it more sensitive. Then I experienced headaches amd feelings of nausea on many occasions. i went back the following week to be told my BP had gone sky high. 160/102.
Avatar n tn metoprolol may not correct SOB! The pacemaker has corrected bradycardia!? The pacemaker will override any disruptions of the normal electrical impulses controlling the rate of your heart's pumping action. SOB is almost always a serious was the only symptom for the admitting personal to put me in an emergency status, but I had other symptoms, dry cough, hyperventilating when laying down, etc . She said that is all that is needed is SOB.
Avatar m tn Your medication helps control high blood pressure and probably would be prescribed without a pacemaker. Also, the med helps stable the heart rate, but if the sinus node pacemaker output is abnormal, the heart rate could be slow enough to cause formation of blood clots and a heart attack or too fast causing the heart to be unable to pump enough blood into circulation with each heartbeat and cause heart failure.
Avatar f tn December just gone he had the ablation done, even the risk of complete heart block had to be better than the life he was living, with the pacemaker already in, it was the best opition. All was great, he had a life doing what all his friends were doing, svts and side affects of meds no longer were the ruler of our family life. Then out of nowhere 3 weeks ago they are back, and back with vengence. They go away when he lays down but on standing are back.
Avatar n tn I was sleeping at the hospital the night before by precaution. They told my heart paused once for 15 seconds. I did not believe that since they woke me up with no symptoms. I should have feel light headed, sick or whatever but...nothing. I have a hard time to believe that.
Avatar m tn to use a host of other drugs. Unfortunately the pacemaker with the drugs only controls the frequency and occurrences of AFib, not the cause but I will take it since I very sympotmatic in AFib.
Avatar f tn Cardio said it is as though I am consistently running. With the premature firing of the natural pacemaker, I also have prolonged waves (sorry I forget the name). Cardio advised that with the tachycardia being and having been a consistent issue to the age I am at now, 36. I am damaging the muscle of the heart.
Avatar n tn I think your client may mean a "wandering pacemaker." Here is the definition given by wikipedia: "This atrial arrhythmia occurs when the natural cardiac pacemaker site shifts between the SA node, the atria, and/or the AV node. This shifting of the pacemaker from the SA node to adjacent tissues is manifested electrocardiographically by transient changes in the size shape and direction of the P waves. A wandering pacemaker is usually caused by varying vagal tone.
Avatar n tn Nonsinus tachycardias are either supraventricular (coming from the upper chambers of the heart) or ventricular (coming from the lower chambers of the heart). Supraventricular tachycardias include: paroxysmal supraventricular tachycardia, atrial flutter, atrial fibrillation and AV nodal tachycardia. Ventricular tachycardias are more serious in nature and are due to a rapid depolarization of the ventricles.
Avatar n tn It sounds like your issue is that your sinus node (the heart's natural pmk) was too slow at night but that you have normal electrical conduction through the heart once the atrium (top chamber of the heart) is stimulated. The reason it is better to have 2 leads (one in the Right Atrium and one in the Right Ventricle) is that in your case the top wire needs to stimulate your atrium at times and then the conduction flows naturally to the ventricle.
Avatar f tn adrenaline release speeds the heart rate, while firing from the vagus nerve (which occurs at rest) slows the rate. But it’s not that simple. Genetic factors also play a role in determining both resting and max heart rates. So does fitness and stress and temperature and a host of things." Clearly, the normal rate varies among various people.
Avatar f tn You probably have some kind of arrhythmia, runs of rapid heart beats originating somewhere else than the sinus node (natural pacemaker). They are usually benign, but a few of them can be life threatening. The dangerous ones often occur in the setting of existing heart disease. If your echo was normal (it seems like it was) it's highly likely to be a so-called supraventricular tachycardia (originating in the upper chambers) and they are almost never dangerous.
Avatar m tn SVT is more annoying than anything else and like I said, if you do your best to protect the health of your heart by being mindful of the episodes you will likely need not worry about the effects on your heart. Anyways, we are here if you ever need to talk.
Avatar n tn Dear Cara, A heart murmur is a sound heart on auscultation of the heart with a stethescope that pertains to a flow disturbance within the heart and or great vessels. Murmurs can be due abnormalities of the valve (including natural aging of the aortic valve), low blood hemoglobin, high heart rates, and many many other things. Some murmurs are benign and others worrisome. Murmurs are best assessed by ultrasound of the heart (echocardiogram.
Avatar m tn Then there is the wonderful back-up on the electrical system of the heart. The SA Node, in the Atrium, is the heart’s natural pacemaker. It discharges, the signal travels, and activates the AV Node, from there going into the ventricles. But what if the SA Node fails? Surprisingly, if the AV Node does not receive a signal from the SA Node, it discharges by itself, and causes the heart to beat. Mind you, the heart beats at a much slower pace, referred to as Bradycardia, but it does keep beating.
Avatar f tn Sometimes one system or the other can influence the heart in a biased way, for instance, the parasympathetic system can slow your heart rate way down, and it does this by influencing how fast the heart's natural pacemaker, the SA Node, discharges. Much of this is handled by the Vagus Nerve, a nerve that starts in your brain, goes down your esophagus, and on to the digestive system. Please be advised that this may not be your problem, but the following article may be of some help.