What are the pacemaker cells of the heart

Common Questions and Answers about What are the pacemaker cells of the heart

pacemaker

Avatar n tn If the walls are too thin, then I would think the Beta Blockers would be the drugs of choice. What are you calling a "small" fainting spell? You either faint or you don't. Or are you referring to: Pre-syncope which is where everything goes black and your hearing goes, but you don't actually FAINT? Either way, this is common with the problem you have. You may want to have a Tilt Table Test done to see exactly what your BP is doing.
1411632 tn?1281642993 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. Can the pacemaker have triggered this since it is a "foreign" object in the heart?
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.
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.
Avatar n tn I do not know what the black substance was, or what the results of exposure may be. However, the skipped beats may be caused simply by confusion in the heart muscle itself. Your heart cells are all capable of contracting and causing the heart to beat. Usually, this job is segregated to specific cells that most people refer to as the "natrual pacemaker." However, as I said before, ALL heart cells are capable of triggering a contraction.
255722 tn?1452546541 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 And two, in the setting of this A fib and a slow heart rhythm, putting in a pacemaker may reduce the amount of atrial fibrillation you're having. But more importantly, the presence of a pacemaker will allow your doctor to put you on anti-arrhythmic medications safely. If you have a tendency for a very slow heart rhythm, if you were placed on and anti-arrhythmic medication, your heart rate may get so slow you could get dizzy or pass out.
Avatar m tn When you have a PVC, the rebel cells cause the ventricle to contract earlier than usual. Because of the way the heart fills, this means the ventricle has not had the opportunity to get as full as usual, and as a result, this particular contraction is weak, as in *really tiny.* People don't usually feel it at all.
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 n tn Bystolic and diabetic, Hypertension meds... I am tired all the time and have not been given a real idea of prognosis.
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 m tn It is relevant to mention here that there is no history of heart ailment in the family of my husband and the ECG done incidentally in the month of January 2010 (when he met with an accident and had a trimellular fracture on his left leg) was normal.
Avatar n tn This goes all the way down to the bottom of the heart. The front of the left ventricle has a small part that is also receiving less oxygen. Diminished means less or smaller, so unless they've used the wrong terminology, I would suspect the heart muscle is alive but not receiving enough oxygen for exertion. If that amount was scar tissue, I would suspect you would be experiencing all kinds of serious health issues.
401554 tn?1270213756 Mainly, you need to talk to your doctor about this. Herbs and supplements are not regulated by the FDA and, given the recent news that some things that ARE regulated by the FDA aren't so well regulated, I'm always nervous about completely UNREGULATED products. I took Norpace for awhile. It is a heavy duty antiarhytmetic that suppresses the sodium and potassium channels causing the pacemaker cells to fire more "regularly.
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.
1571146 tn?1399909692 Mitochondrial disease IVF involving THREE PERSONS Embryos that contain genetic material (DNA) from one man and two women were created recently by scientists at the University of Newcastle. The research published in the journal Nature has the ability to help mothers suffering from rare genetic disorders to have healthy children. The new method focuses on mitochondria, small particles within cells that act as batteries which provide energy to the cell.
Avatar m tn I'm not sure of the answer but I'll refer you to the icd forum I'm a member of and I know there are some who have had theirs taken out - icd support group .
Avatar f tn If there is not too much variance in timings between the left and right ventricle, then no action is needed. You have Afib and Aflutter which means that the Atria (small chambers at the top of the heart) are not beating normally. Medication can usually resolve this problem. Severe brady just means your heart rate is very slow. A pacemaker could be a good solution to this. If you have one, then this will need to be adjusted or upgraded.
Avatar n tn When I do any exercise that really contracts the muscle that my pacemaker lies under, I pay attention to how it feels and stop or switch positions if it feels like it is putting too much pressure on the pacemaker. If your pacemaker has been implanted recently, be especially careful for the first few months while the scar tissue grows to hold the pacer and leads in place.
Avatar n tn s nearly 30 years ago and I think heart failure would have begun years ago from that. What you need to establish is the cause of the heart failure. Have there been more blockages in the arteries that haven't been treated? was there as infection involved? I get the impression that artery blockages have been the cause, hence the pacemaker requirement because the normal cells transmitting the signal have been killed. The question would be, why didn't they treat those blockages?
Avatar f tn I'm having what the doctor referred to as a "generator repair" on my pacemaker next Tuesday. How long does this usually take? What other complications might be found?
1400314 tn?1280731525 Hi mcalderon91723, If this were me, one of the things I'd like to know would be what terminated the 7.5 second pause? My understadning is that every cell in your heart can become a pacemaker. It's nature's wonderful backup system in case the regular pacemaker signal doesn't reach the ventricles. The noraml pacemaker is a group of cells in the atrium called the "sino atrial node" or SA node.
Avatar m tn After a heart attack, one has heart cells that are stunned surrounding the dead heart muscle, and a gradual increase in exercise/blood flow can revitalize those stunned cells. However, a sudden increase in exercise can be counter-productive. I'd have patience, and ease back into your regular routine.
Avatar f tn s natural pacemaker for the top part of the heart and the other was for the lower part? which is where my thought was leading to with both pm & icd if both had been ablated and 100% pacemaker dependent "Ventricles alone can sustain life, as proven by folks that are in a-fib" is that the same as in Vfib?