Where are pacemaker cells located in the heart

Common Questions and Answers about Where are pacemaker cells located in the heart

pacemaker

Avatar n tn The spread of electricity throughout the heart muscle is possible because all heart muscle cells, not just pacemaker cells, are excitable. Usually, the heart muscle cells keep time more slowly than normal pacemaker cells. This allows the pacemaker cells within the SA node to be in control of generating and pacing the heartbeat.
Avatar n tn The spread of electricity throughout the heart muscle is possible because all heart muscle cells, not just pacemaker cells, are excitable. Usually, the heart muscle cells keep time more slowly than normal pacemaker cells. This allows the pacemaker cells within the SA node to be in control of generating and pacing the heartbeat.
Avatar n tn The sinus atrial node is a clump of cells in your heart that put out an electrical current that causes the rest of your cells in the atrial center of your heart to contract. The electrical current continues into the ventricular node and causes the bottom of the heart to contract immediately after that.
Avatar n tn t coming from the natural pacemaker which is located in the high atrium. It is normal to have this as long as you are not limited in terms of your physical activity such as climbing stairs, running or playing with your colleagues. If that's the case I would not worry about this at all. On the other hand, if you do notice some limitations, a visit to a cardiologist may not be a bad idea. He would do history and a physical exam and evaluate your heart function with an echocardiogram.
5681515 tn?1372270707 They are basically destroying cells which are messing up the signal for heart rhythm and so there is a risk they could stop the heart or send it into VF. Even after bypass surgery they attach a wire to the heart, which protrudes from the chest, in case they need to attach a pacemaker. It's better to be ready for any situation rather than waiting to get the equipment connected to you.
1411632 tn?1281642993 I had a halter monitor test done by my PCP and they said they recorded several pauses. One that was 9.5 seconds, one 6 seconds and two 3 seconds. I was referred to a cardiologist who recommended a pacemaker. What are the odds that in that 24 hour halter test there are 4 pauses but now my pacemaker has not recorded any in an 8 month period? I also did not have tachycardia until after the pacemaker implantation.
Avatar f tn Hello. Welcome to the MedHelp MS Forum. I don't know off hand about the location of lesions in that part of the brain, but I found this: "The basal ganglia refers to large clusters of nerve cells which are located within the cerebrum and upper parts of the brain stem. These structures help start and stop movement, as well as keep movements smooth and fluid.
401554 tn?1270213756 the first 48 hours there is a good chance that your cells are well adjusted to the shift in sodium/potassium levels and have regulated their cycle of polarization/depolarization to fire at regular intervals. In other words...these drugs interfere with THE NUMBER ONE MOST IMPORTANT MECHANISM IN CARDIAC MUSCLE CONTRACTION. That means that it is messing with some pretty important stuff and you need to be monitored for side effects.
Avatar m tn It's interesting that everyone has irregular beats--but most people simply don't feel them. We sensitive types do. Perhaps you've read what actually happens during an ectopic beat? If not, here's a simplified rundown: The 'Pacemaker' in the upper right atrium normally sets the heart rate, but it's important to know that every cardiac cell in the heart is naturally rhythmic and contractile.
Avatar m tn Check out MaryLL's story on here. It should be posted in her journal. After 15 years of Afib, she was cured by having a thoracic maze procedure. They go in through the ribs and it is performed on a beating heart. She was having episodes every week. She had had 3 ablations before this procedure. It was a long recovery. Also, Dr. Sirak at Ohio State University does a thoracic maze procedure and lots of people on here have posted that they were cured after the procedure.
1535596 tn?1292469791 On July 9 of this year, I was implanted with a pacemaker and now am a card carrying member of the Pacemaker club. The reason, complete or phase 4 heart block with bradycardia. Before the implantation, I was monitoring my blood pressure on my own with a home monitor. I am also a trained nurse. I noticed that I was having palpitations, quite regularly, and my blood pressure was averaging 160/100 where it used to be 112/80. My heart rate, resting, was averaging 100 bpm.
Avatar m tn There are several facts to be considered here. The longer the pacemaker stays in the body, the harder it is to take out. A pacemaker that has been inside for ten years is difficult to extract although not impossible. Once these devices get infected, it is very difficult to treat using antibiotics due the reason that you have mentioned. In that case scenario, the patient might require multiple courses of antibiotics or even sometimes life long suppressive antibiotics.
696415 tn?1228229959 The sinoatrial node (SA node) is a group of cells positioned on the wall of the right atrium, near the entrance of the superior vena cava. Cells in the SA node will naturally discharge at about 70-80 times per minute. Because the sinoatrial node is responsible for the rest of the heart's electrical activity, it is sometimes called the primary pacemaker, the natural pacemaker.
Avatar f tn since Jo first mentioned this, I'd thought it was a fascinating thing, and ended up watching a few video presentations. Apparently, they just get the stem cells and inject them into a coronary artery. I'd suppose that they hope/expect some cells stick there in the heart and then do their magic. The cells can be gotten from such places as the marrow (naturally, because of the hematopoeitic stem cells used in blood cancer therapy), but also from fat or muscle areas.
Avatar f tn She was afraid of infection at his age and we both agreed we would feel better if the call was made by a professional seeing him that evening, so she took him to the ER. The doctor admitted him. The next morning his cardiologist came in saying he wanted to rule out a blood clot, as his blood tests seem to be normal. An ultrasound of his arm and shoulder and as close to the heart as they could get safely, ruled that out.
Avatar f tn So, in theory, yes an object buried in the av node, could sufficiently damage the cells and destroy the function of the av node.
9576600 tn?1475757952 My current palpitations are mainly the heart block - I feel the heart being irregular and skipping the beat; afterwards a short SVT arrives - it lasts like three seconds only. So it is mainly the block which causes me troubles now. Thanks for your support, I hope my life with a pacer will be finally "normal". Greetings from france!
Avatar f tn When I was at the doctors office they explained that it is working everytime her heart beats. They told us that the lower right side of her heart is bad. They said the pacemaker is set at 60bpm to keep her heart at a steady beat but when her blood pressure is taken the lower number is always in the 80's. I tryed to ask could the pacemaker be set to high for her body.
Avatar n tn Her ejection fracture is 15%, she has a difibulator and a pacemaker, but they are not doing the job they are supposed to because they can not get her heart to slow down enough. She recently started having really bad nose bleeds and is going to the doctor Wednesday. I am really worried about her. The doctors keep saying the next step is a Heart Transplant, but I was wondering if there is any other option that we could try.
9314345 tn?1409636047 Your heart has a pacemaker in the top, and when that pacemaker discharges, other cells, starting in the top of your heart and working to the bottom, contract and forces the blood out of the heart. These cells that can respond to the slight electric current from the heart's pacemaker can, for some reason, cause slight discharges on their own. When that happens, the heart contracts or tries to before it should of.
512694 tn?1216161406 That's right - size doesn't matter. If it's located in a sensitive area, you're going to feel it. Let's hope in 10 days you feel better. (I've never heard of gastric pacemaker, just the regular pacemaker for the heart. I'll have to look it up and learn something new.
Avatar n tn The most important thing I gathered from the articles is that the trigger(s) are located close to the sinus node and that is the reason for the risk of heart block and potentially the need for a pacemaker in the worst case. Because the trigger(s) are close to the sinus node, precise and high density mapping is needed and the ablation catheter needs to be stable in order for the ablation to be successful without damaging the sinus node.