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How pacemaker cells work

Common Questions and Answers about How pacemaker cells work

pacemaker

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 You have suffered a great injustice, and I'm sorry for your experience. 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.
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 Hi, am doing some research. please can you explain why an 89yr old with pacemaker kept her 70bpm pulse with a fever of 40 deg.C. Also what were the metabolic implications for her? Many thanks.
1744581 tn?1311302411 I'm a 34 yr old female & I have a pacemaker for congenital complete heart block. I had it replaced for the first time 5 weeks ago. A recent echo showed severe hypokinesis of the apical wall. Ejection fraction is 50%. My dr said this could be due to wear my lead is at. I returned to work a 2 weeks ago after being off for a month after my surgery. I'm a prep cook & my job is pretty easy. I'm on my feet all day but I've been doing the same work for years.
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 By the way...I noticed the ??? near the "natural pacemaker" portion of your post. Thought I'd take a minute to help you understand. 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 f tn heart cells are probably trying to take up for the loss. However, not being the natural pacemaker center, these cells fire at inappropriate times causing what you are feeling as palps. As for what to do, I can only tell you what I would do. I would get the thing fixed or replaced ASAP.
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 m tn I have had five surgeries, a pacemaker for apparent sick sinus syndrome, pacemaker syndrome which caused an apparent heart attack, three ablations that have wiped out 60 - 70% of my heart cells, pacs, pvcs, blood clots, SVTAC, afib, etc. No meds. work and my blood pressure also goes up and down with incredible fluctuation. Stress exacerbates my symptoms which are all (ears ringing, muscles twitching, dizziness, fatigue, sharp chest pains/againa, etc).
1293682 tn?1311956071 Am on Coreg 40mg and Lisiopril 10 mg and waiting to see if meds work... then the next step is a pacemaker if meds dont work by 6mos. If I do have to get a pacemaker, will that include a defib too? I have non ischemic DCM and normal rythym as far as I know, but the risk of SCD makes me think a defib along with a pacemaker would be good. Hopefully I wont have to get one! its pretty scary. I already have RA, hypothyroidism, Fibro, Sjogrens...
215858 tn?1420171556 Hi I am sure others will have some ideas and I am not a microbiologist but from what you posted my best guess would be that Solvaldi interferes with the hep C virus replicating itself. That it prevents the virus from reproducing or making copies of itself. Individual virus cells don't live forever so as the virus cells die they are not replaced. Hope that helps. Any other takers on this one?
Avatar n tn from that blood draw my own stem cells were replicated. 23 Million Stem Cells were injected into my heart muscle and vascular system - via an angiogram. 80% of those 23 million were tagged for my heart. I will be glad to put you in touch with the Heart Clinic, in Florida, that I used. The procedure is not covered by insurance - again because of lack of FDA approval. Testing is being done in the U.S. in Chicago and Texas - might be elsewhere that's the 2 I know.
Avatar f tn How many people go back to work with transitory for veritable brain aneurysm and pacemaker for accelerated functional rhythm sass and navy. I continue to miss work with all my problems. Migraines, nausea, functional rhythm, set. Dizzy etc. Would I qualify for disability. Getting to be impossible to work!
Avatar m tn I jumped rope 1000 times, done 60 push ups, 60 pullups and some dumbell work. Like magic they went away. I had 5 or so hours PAC/PVC free. And now at 2am they hit again. I was lying in bed and I felt the hard beat, pause, hard beat. Instant stress. I got angry. And they kept on coming every couple of minutes. They seem to have stopped for the moment, but it's so unpredictable lying here waiting for it to happen again.
2090601 tn?1334515062 Hi Jenge. I would say your understanding is as good as mine is. At least that is what my trial nurse told me. "So what do the meds do once the virus is und??" My guess is they kill the virus that may be hiding else where in our body's (besides blood) .. I was told our WBC goes down because we are taking interferion, therefore our white blood cells don't have to work to fight off virus, infection and what have ya.
1400314 tn?1280731525 d like to know what got the ventricles going again. My understanding is that the pacemaker cells in the Ventricles can take over in the event it doesn't receive a signal to beat. this is called an "escape beat". On you holter they should be able to tell if the ventricles fired an escape beat or if the next beat was something called "normal sinus rhythm" or NSR. usually the ventricles will fire an escape beat within 3-4 seconds of not getting NSR.
Avatar m tn Yes, the condition can infect the heart's natural pacemaker. The heart's "natural" pacemaker is called the sinoatrial (SA) node or sinus node. It's a small mass of specialized cells in the top of the heart's right atrium (upper chamber). It makes the electrical impulses that cause your heart to beat.
Avatar n tn If the cells are dead, a cath would not be of any help. If the cells are hibernating due to low blood flow to the area, medication can increase the blood flow to the area....angina with stress and rest normal blood flow. Your symptoms, if any, would be the issue to correct. If you are having chest pain (angina) with exertion and rest relieves the chest pain that would be stable angina and medication can be effective.
Avatar f tn These were stem cells made from my OWN STEM CELLS not embryonic. So, no chance of rejection, no extra pills to take. There is over an 80% chance of improvement. My EF was between 12 and 15% before new stem cells. Have not had another EF test yet. I am diabetic(insulin dependent.) I do have a defibrillator and pacemaker. Would be only too happy to share my experiences - they will be on-going!! It is a shame one has to go out of the country to have this procedure done.
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 my father had a heart attack in 1984, a pacemaker four years ago andnow is diagnosed with heart failure, is this normal?
Avatar f tn I found a company in the USA that took your blood here - shipped to Isreael for replication - and then meet the American Doctor in another country to have the stem cells put into my heart. I am talking about my own stem cells replicated - not embryonic. I had 23 Million Stem Cells injected on Nov. 11, 2008. My Ejection Factor has gone from 12% to 30%,,,certainly "not out of the water" but better than 12%. It is not easy to accept - certainly requires a huge change in lifestyle...
Avatar n tn There can be different reasons, but it generally finds a different way around, through normal heart cells. However, this can cause a delay, meaning the right chamber is contracting slower or is delayed compared to the left. This is probably what they are referring to with regards to borderline. Causes could be genetic history, certain infection types, recent heart attack, heart disease. If the cells are damaged, then there is always the option of a pacemaker.
Avatar n tn As a heart patient I think Coreg did indeed revive the heart stunned heart cells. Dead cells are just dead, but some of the cells can be revived, I was told. I weigh 85 pounds more than you and know that drug doses are given by body weight in many cases. I'm a big believer in quality of life as opposed to just staying alive, so know your struggle, I had it for several months. Easy for me to say, but I'd stay the course until you just can't endure the fatigue.
Avatar f tn SIRAK ABOUT A NEWER PROCEDURER CALLED TOTAL THORACOSCOPIC MAZE I HAD AN ABLATION AS WELL THAT DID NOT WORK BECAUSE DR SIRAK SAID THEY COULDNT REACH IT IN THAT PROCEDURE THIS PROCEDURE IS A LITTLE MORE INTENSE THEY CUT 4 I FOURTH INCH SLITS ON WACH SIDE OF YOUR SIDES BEHIND BREAST THEY FEED THE EQUIPMENT THROUGH THEM TO WORK ON THE HEART THEY DIVIDE THE HEART INTO 4 AREAS TO CHECK FOR AND ABLATE THE ELECTRIAL INPULSES THATG CAUSE AFIB YOU GET GENERAL ANATHETIC AND YOUR COMPLETELY OUT FOR PROC
Avatar n tn hypokinesis can also be the result of stunned cells. Stunned heart cells affected by a heart attack can be revitalized if blood/oxygen is quickly provided within a few hours to the area affected by an acute heart attack. Akinesis is different from hypokinesis in that the heart cells affected are necrotic (dead). Stem cell therapy may be helpful for that condition. Five years ago I had hypokinesis of the left ventricle wall and a low EF.
Avatar f tn I cannot understand how, even by VA medical standards, a person taking beta blockers, who has a pacemaker keeping the heart rate under 40bpm, who has uncontrolled Afib, unstable angina, as well as severe aortic stenosis, could possibly NOT be under the very watchful care of a cardiologist. In terms of decent medical practice, this makes no sense, for this collection of findings indicates serious cardiovascular disease *as well as* treatment currently under way.
Avatar f tn My sister and I are at a loss to understand how this makes his hand swell? Is this a common occurrence after implanting a pacemaker? I am trying not to worry but I am. Anyone ever hear of this? I also, have another question in regard to his limitations once he is all healed and settled back to normal. He is not your typical 83 yr old and he goes steady and multiple hobbies and yard tasks. It is great that it keeps him challenged and moving.